Information transmission method and device

Abstract

An information transmission method and apparatus, relating to the field of communication technology, can improve the communication performance of terminal devices in a disconnected state. The method includes: receiving an SSB on a resource corresponding to a first signal and / or receiving an update indication of system information on a resource corresponding to a control resource set CORESET#0 during a first time period, wherein the update indication is used to indicate whether the system information has been updated; the first signal includes a synchronization signal block (SSB); transmitting small packet data transmission (SDT) service on a first partial bandwidth (BWP) during a second time period; the second time period does not overlap with the first time period; wherein the first BWP does not include the resources of the SSB and / or the resources of CORESET#0.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to an information transmission method and apparatus. Background Technology

[0002] Mobile communication technology has profoundly changed people's lives, but the pursuit of higher-performance mobile communication technology has never stopped. To cope with the explosive growth of mobile data traffic, the massive number of mobile communication device connections, and the continuous emergence of various new services and application scenarios, the fifth-generation (5G) mobile communication system has emerged. The International Telecommunication Union (ITU) has defined three major application scenarios for 5G and future mobile communication systems: enhanced mobile broadband (eMBB), ultra-reliable and low-latency communications (URLLC), and massive machine-type communications (mMTC).

[0003] The main characteristics of mMTC services are a large number of networked devices, small data transmission volume, and insensitivity to transmission latency. Currently, the standard refers to terminals performing services such as mMTC as low-complexity or low-capability (reduced capability, RedCap) terminals. Low-capability terminals typically have narrower bandwidth; for example, a low-capability terminal supports a maximum channel bandwidth of 20MHz in the FR1 band and 100MHz in the FR2 band. Furthermore, low-capability terminals consume less power and have fewer antennas.

[0004] Considering the aforementioned characteristics of low-capability terminals, how to improve their communication performance has become an urgent technical problem to be solved. Summary of the Invention

[0005] This application provides an information transmission method and apparatus that can improve the performance of communication between terminals in SL scenarios.

[0006] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0007] Firstly, an information transmission method is provided, which can be applied to a terminal device or a device (such as a chip system) that implements the functions of the terminal device, the method comprising:

[0008] During a first time period, the SSB is received on the resource corresponding to the first signal and / or an update indication of system information is received on the resource corresponding to the control resource set CORESET#0, the update indication being used to indicate whether the system information has been updated; the first signal includes a synchronization signal block SSB;

[0009] During the second time period, small packet data transmission SDT service is transmitted on the first portion of bandwidth BWP; the second time period does not overlap with the first time period.

[0010] Wherein, the first BWP does not include the resources of the SSB and / or the resources of the CORESET#0.

[0011] Optionally, the terminal device can be a low-capability terminal.

[0012] The above scheme, by configuring a first time period, allows network devices and terminal devices to determine the time when the terminal device switches to the resource corresponding to the SSB and / or CORESET#0 (i.e., the first time period). Therefore, network devices and terminal devices can interact with the SSB and / or update indication within the first time period, which helps to improve the success rate of SSB and / or update indication interaction, thereby improving the communication performance of the terminal device in subsequent communication processes.

[0013] In one possible design, the first BWP does not include resources for transmitting SSB and / or does not include resources for transmitting update indications.

[0014] In one possible design, the network device does not send SDT (Service Deployment and Delivery) services to the terminal device during the initial time period. This avoids wasting network resources and transmission failures caused by the terminal device missing SDT services when the network device schedules them on the first BWP (Browser Window).

[0015] In one possible design, the configuration parameters for the first time period are predefined. In other words, the terminal can determine the configuration parameters for the first time period based on predefined information. This approach can save signaling overhead.

[0016] Alternatively, the configuration parameters for the first time period are determined according to preset rules. In other words, the terminal can determine the configuration parameters for the first time period based on preset rules. Determining the configuration parameters for the first time period based on preset rules offers a degree of flexibility and reduces signaling overhead.

[0017] Alternatively, the configuration parameters for the first time period can be configured by the network device. This method allows for flexible configuration of the parameters for the first time period, satisfying the dynamic scheduling requirements of the network.

[0018] In one possible design, the configuration parameters for the first time period are configured by the network device, including: the configuration parameters for the first time period are carried in RRC, DCI, or system information.

[0019] In one possible design, the system information update indication includes any of the following: system information update information, update indication contained in paging information, system information update indication, and PWS update indication.

[0020] In one possible design, the method further includes: transmitting SDT services on the first BWP before a first time period. During the SDT service transmission, the terminal device can pause the SDT service transmission during the first time period to listen for corresponding messages (SSB and / or update indications) during the first time period, thereby improving the communication performance of the terminal device by listening for the corresponding messages.

[0021] In one possible design, the configuration parameters for the first time period include at least two of the following: start time, length, end time, and period.

[0022] In one possible design, the configuration parameters of the first time period are determined according to preset rules, and the start time of the first time period is determined according to one or more of the following information:

[0023] The time unit in which the update indication is located, the start time of the radio frame in which the update indication is located, the time unit in which the SSB is located, and the radio frequency tuning time.

[0024] In one possible design, the length of the first time period is related to one or more of the following: radio frequency tuning time, duration of the SSB, duration of SSB detection, duration of downlink signal, processing duration of downlink signal, duration of update indication, processing duration of update indication, duration of system information, processing duration of system information, whether the system information has been updated, update time of the system information, update cycle of the system information, paging cycle, duration of paging opportunity, and time domain resources of available paging opportunities corresponding to the SSB.

[0025] In one possible design, the configuration parameters of the first time period are determined according to preset rules, and the period of the first time period is determined based on any of the following information: paging period, discontinuous reception period, extended discontinuous reception period, system information update period, and extended discontinuous reception acquisition period.

[0026] In one possible design, the first BWP includes one or more of the following resources: independent initial downlink portion bandwidth BWP, independent initial uplink BWP.

[0027] In one possible design, the SSB is used to determine the effectiveness of timing advance TA.

[0028] Secondly, a method for transmitting information is provided, the method being applied to a network device or a component (such as a chip) capable of supporting the network device in performing related functions, the method comprising:

[0029] During the first time period, an update indication of system information is sent on the resource corresponding to the synchronization signal block SSB and / or on the resource corresponding to the control resource set CORESET#0, wherein the update indication is used to indicate whether the system information has been updated;

[0030] During the second time period, small packet data transmission SDT service is transmitted on the first portion of bandwidth BWP; the second time period does not overlap with the first time period.

[0031] Wherein, the first BWP does not include the resources of the SSB and / or the resources of the CORESET#0.

[0032] In one possible design, the configuration parameters for the first time period are predefined, or the configuration parameters for the first time period are determined according to preset rules, or the configuration parameters for the first time period are configured by the network device.

[0033] In one possible design, the configuration parameters for the first time period include at least two of the following: start time, length, end time, and period.

[0034] In one possible design, the configuration parameters of the first time period are determined according to preset rules, and the start time of the first time period is determined according to one or more of the following information:

[0035] The time unit in which the update indication is located, the start time of the radio frame in which the update indication is located, the time unit in which the SSB is located, and the radio frequency tuning time.

[0036] In one possible design, the length of the first time period is related to one or more of the following: radio frequency tuning time, duration of the SSB, duration of SSB detection, duration of downlink signal, processing duration of downlink signal, duration of update indication, processing duration of update indication, duration of system information, processing duration of system information, whether the system information has been updated, update time of the system information, update cycle of the system information, paging cycle, duration of paging opportunity, and time domain resources of available paging opportunities corresponding to the SSB.

[0037] In one possible design, the configuration parameters of the first time period are determined according to preset rules, and the period of the first time period is determined based on any of the following information: paging period, discontinuous reception period, extended discontinuous reception period, system information update period, and extended discontinuous reception acquisition period.

[0038] In one possible design, the first BWP includes one or more of the following resources: independent initial downlink portion bandwidth BWP, independent initial uplink BWP.

[0039] In one possible design, the SSB is used to determine the effectiveness of timing advance TA.

[0040] Thirdly, an information transmission method is provided, the method being applied to a terminal device or a component (such as a chip) capable of supporting the terminal device to perform related functions, the method comprising:

[0041] The system receives a Synchronization Signal Block (SSB) on the first bandwidth BWP and / or receives an update indication of system information on the first BWP, the update indication indicating whether the system information has been updated; the first BWP does not include the resources of the Cell Definition Synchronization Signal Block (CD-SSB) and / or the control resource set CORESET#0, the first BWP includes the resources corresponding to the SSB and / or the resources corresponding to the update indication.

[0042] Small packet data transmission SDT service is transmitted on the first BWP.

[0043] In one possible design, the first BWP includes the resources corresponding to the SSB and / or the resources corresponding to the update indication, including:

[0044] The first BWP includes the resource corresponding to the update instruction, or

[0045] The first BWP includes the resources corresponding to the SSB and the resources corresponding to the update indication, or

[0046] The first BWP includes the resources corresponding to the SSB.

[0047] In one possible design, the configuration parameters of the resource corresponding to the SSB and / or the configuration parameters of the resource corresponding to the update indication are configured by the network device.

[0048] In one possible design, the configuration parameters of the resource corresponding to the SSB are configured by the network device, including: the configuration parameters of the resource corresponding to the SSB are carried in Radio Resource Control (RRC) signaling or broadcast signaling.

[0049] In one possible design, the configuration parameters of the resource corresponding to the update indication are configured by the network device, including: the configuration parameters of the resource corresponding to the update indication are carried in Radio Resource Control (RRC) signaling, downlink control channel, or broadcast signaling.

[0050] Fourthly, an information transmission method is provided, characterized in that the method is applied to a network device or a component (such as a chip) that enables the network device to perform related functions, the method comprising:

[0051] The second signal is transmitted on the first portion of the bandwidth BWP and / or an update indication of system information is transmitted on the first BWP, the update indication being used to indicate whether the system information has been updated; the first BWP does not include the resources of the cell-defined synchronization signal block CD-SSB and / or the control resource set CORESET#0, the first BWP includes the resources corresponding to the second signal and / or the resources corresponding to the update indication; the second signal includes a non-cell-defined synchronization signal block NCD-SSB.

[0052] Small packet data transmission SDT service is transmitted on the first BWP.

[0053] In one possible design, the first BWP includes the resource corresponding to the second signal and / or the resource corresponding to the update indication, including:

[0054] The first BWP includes the resource corresponding to the update instruction, or

[0055] The first BWP includes the resource corresponding to the second signal and the resource corresponding to the update indication, or

[0056] The first BWP includes the resource corresponding to the second signal.

[0057] In one possible design, the configuration parameters of the resource corresponding to the second signal and / or the configuration parameters of the resource corresponding to the update indication are configured by the network device.

[0058] In one possible design, the configuration parameters of the resource corresponding to the second signal are configured by the network device, including: the configuration parameters of the resource corresponding to the second signal are carried in Radio Resource Control (RRC) signaling or broadcast signaling.

[0059] In one possible design, the configuration parameters of the resource corresponding to the update indication are configured by the network device, including: the configuration parameters of the resource corresponding to the update indication are carried in Radio Resource Control (RRC) signaling, downlink control channel, or broadcast signaling.

[0060] Fifthly, an information transmission method is provided, the method being applied to a terminal device or a component (such as a chip) capable of supporting the terminal device in performing related functions, a network device or a component (such as a chip) capable of supporting the network device in performing related functions. The priority of the SDT service is higher than the priority of the update indication, and / or, the priority of the SDT service is higher than the priority of the SSB.

[0061] The method includes: if the third time-frequency resource and the fourth time-frequency resource overlap, or if the time-domain interval between the third time-frequency resource and the fourth time-frequency resource is less than a threshold, then the SDT service is transmitted; the third time-frequency resource is used to transmit the SDT service, the fourth time-frequency resource is used to transmit the SSB and / or the update indication, and the third time-frequency resource is a portion of the resources in the first BWP.

[0062] Sixthly, an information transmission method is provided, the method being applied to a terminal device or a component (such as a chip) capable of supporting the terminal device in implementing related functions, the terminal device supporting the transmission of SDT services on a first BWP, the terminal device expecting to include resources corresponding to the SSB and / or resources corresponding to the update indication in the first BWP, the method comprising:

[0063] Receive synchronization signal block SSB on the first portion bandwidth BWP and / or receive system information update indication on the first BWP;

[0064] Small packet data transmission SDT service is transmitted on the first BWP.

[0065] A seventh aspect provides an information transmission method, the method being applied to a network device or a component (such as a chip) capable of supporting the network device in performing related functions, wherein the network device configures resources for transmitting SDT services within a first BWP for a terminal device, the method comprising:

[0066] The system receives a synchronization signal block (SSB) on the first bandwidth (BWP) and / or receives an update indication of system information on the first BWP; the first BWP includes resources corresponding to the SSB and / or resources corresponding to the update indication.

[0067] Small packet data transmission SDT service is transmitted on the first BWP.

[0068] Eighthly, an information transmission method is provided, the method comprising:

[0069] The terminal device sends first indication information, which can be used to indicate the capabilities of the terminal device. This allows the network device to better configure appropriate resources or configurations for the terminal device based on its capabilities. For example, the first indication information can be used to indicate whether the terminal device supports resources corresponding to the first signal and / or the resource corresponding to CORESET#0 that are not included in the first BWP. Alternatively, the first indication information can be used to indicate that the terminal device does not expect the first signal to be included in the first BWP. Or, the first indication information can be used to indicate that the terminal device expects the first signal to be included in the BWP.

[0070] Ninthly, an information transmission method is provided, the method comprising:

[0071] The network device receives the first indication information and determines the method of SSB measurement and / or receiving update indications based on the first indication information.

[0072] Optionally, the configuration of the first time period as in Embodiment 1 is adopted, instructing the terminal device to measure SSB and / or receive system information update indications within the corresponding resources. In this way, a more capable terminal device can perform SSB measurement and / or receive system information update indications in frequency domain resources outside the first BWP. Alternatively, the network device can, based on the capabilities of the terminal device, adopt the configuration of Embodiment 2, configuring resources within the first BWP for receiving SSB (e.g., resources corresponding to NCD-SSB) and / or resources for receiving update indications. In this way, the terminal device can perform SSB measurement and / or receive system information update indications within the first BWP.

[0073] In a tenth aspect, an information transmission method is provided, wherein the first BWP does not include resources corresponding to the SSB and / or resources corresponding to CORESET#0, and the network device configures a first time period for the terminal device; the method includes:

[0074] During the first time period, the terminal device receives instruction information and switches from the first BWP to other resources to perform SSB measurement and / or receive system information update instructions based on the instruction information.

[0075] In one possible example, if the network device does not configure a first time period for the terminal device, the terminal device does not need to switch to other resources to perform SSB measurements and / or receive system information update instructions.

[0076] This scheme gives network devices greater flexibility in configuration, allowing them to choose the appropriate method based on actual conditions so that terminal devices can measure the first signal (or the second signal) and / or receive updated system information.

[0077] Eleventhly, embodiments of this application provide an information transmission device that has the function of implementing the information transmission method of any of the above aspects. This function can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

[0078] In a twelfth aspect, an information transmission apparatus is provided, comprising: a processor and a memory; the memory is used to store computer execution instructions, and when the information transmission apparatus is in operation, the processor executes the computer execution instructions stored in the memory to cause the information transmission apparatus to perform an information transmission method as described in any of the preceding aspects.

[0079] In a thirteenth aspect, an information transmission apparatus is provided, comprising: a processor; the processor is configured to be coupled to a memory, and after reading instructions from the memory, to execute an information transmission method as described in any of the preceding aspects according to the instructions.

[0080] In a fourteenth aspect, a computer-readable storage medium is provided, which stores instructions that, when executed on a computer, enable the computer to perform the information transmission method of any of the preceding aspects.

[0081] In a fifteenth aspect, a computer program product containing instructions is provided, which, when run on a computer, enables the computer to perform the information transmission method of any of the preceding aspects.

[0082] In a sixteenth aspect, a circuit system is provided, the circuit system including a processing circuit configured to perform an information transmission method as described in any of the preceding aspects.

[0083] In a seventeenth aspect, a chip is provided, the chip including a processor and a memory coupled together, the memory storing program instructions, and when the program instructions stored in the memory are executed by the processor, the information transmission method of any one of the above aspects is implemented.

[0084] Eighteenth aspect, a communication system is provided, the communication system including terminal equipment and network equipment of any of the above aspects.

[0085] The technical effects of any of the design methods in aspects two through eighteen can be found in the technical effects of different design methods in aspect one, and will not be repeated here. Attached Figure Description

[0086] Figure 1 This is a schematic diagram of BWP in related technologies;

[0087] Figure 2A , Figure 2BThis is a schematic diagram illustrating the configuration of the independent initial bandwidth in related technologies;

[0088] Figure 3 This is a schematic diagram of the architecture of the communication system provided in the embodiments of this application;

[0089] Figure 4 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0090] Figure 5 A flowchart illustrating the information transmission method provided in an embodiment of this application;

[0091] Figure 6A , Figure 6B , Figure 6C A flowchart illustrating the information transmission method provided in an embodiment of this application;

[0092] Figure 7A , Figure 7B , Figure 8A , Figure 8B , Figure 9A , Figure 9B A schematic diagram illustrating a scenario of the information transmission method provided in an embodiment of this application;

[0093] Figures 10-16 A schematic diagram of the configuration for the first time period provided in an embodiment of this application;

[0094] Figure 17A , Figure 17B A schematic diagram of the configuration for the first time period provided in an embodiment of this application;

[0095] Figure 18 , Figure 19 A schematic diagram of the configuration for the first time period provided in an embodiment of this application;

[0096] Figure 20 A flowchart illustrating the information transmission method provided in an embodiment of this application;

[0097] Figure 21A A schematic diagram illustrating a scenario of the information transmission method provided in an embodiment of this application;

[0098] Figure 21B A flowchart illustrating the information transmission method provided in an embodiment of this application;

[0099] Figure 22A A schematic diagram illustrating a scenario of the information transmission method provided in an embodiment of this application;

[0100] Figure 22B A flowchart illustrating the information transmission method provided in an embodiment of this application;

[0101] Figure 23AA schematic diagram illustrating a scenario of the information transmission method provided in an embodiment of this application;

[0102] Figure 23B A flowchart illustrating the information transmission method provided in an embodiment of this application;

[0103] Figures 24-27 A schematic diagram illustrating a scenario of the information transmission method provided in an embodiment of this application;

[0104] Figure 28 This is a schematic diagram of the structure of the information transmission device provided in the embodiments of this application. Detailed Implementation

[0105] The terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” “the,” and “this” are intended to also include expressions such as “one or more,” unless the context clearly indicates otherwise. It should also be understood that in the following embodiments of this application, “at least one” and “one or more” refer to one or more (including two). The term “and / or” is used to describe the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can indicate: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character “ / ” generally indicates that the preceding and following related objects are in an “or” relationship.

[0106] References to "one embodiment" or "some embodiments" as used in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized. The term "connection" includes both direct and indirect connections, unless otherwise stated.

[0107] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0108] In the embodiments of this application, the words "exemplarily" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplarily" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design solutions. Specifically, the use of the words "exemplarily" or "for example" is intended to present the relevant concepts in a specific manner.

[0109] First, let's introduce some technical terms used in the embodiments of this application:

[0110] Three major application scenarios of 1.5G system

[0111] Services for 5G and future mobile communication systems may include eMBB, URLLC, mMTC, and other services.

[0112] Typical eMBB services include, but are not limited to: ultra-high-definition video, augmented reality (AR), and virtual reality (VR). The main characteristics of eMBB services are large data transmission volume and high transmission rate.

[0113] Typical URLLC services include, but are not limited to: wireless control in industrial manufacturing or production processes, motion control of autonomous vehicles and drones, and haptic interaction applications such as remote repair and remote surgery. The main characteristics of URLLC services are the requirement for ultra-high reliability, low latency, small data transmission volumes, and bursty data transmission.

[0114] Typical mMTC services include, but are not limited to, smart grid distribution automation and smart cities. The main characteristics of mMTC services are a large number of networked devices, small data transmission volume, and insensitivity to transmission latency. Typically, mMTC terminals need to meet the requirements of low cost and long standby time.

[0115] Different services have different requirements for mobile communication systems. How to better support the data transmission needs of multiple services is a current technical challenge for 5G mobile communication systems. For example, how to simultaneously support mMTC and eMBB services, or simultaneously support URLLC and eMBB services, has become an urgent technical problem to be solved.

[0116] 5G technology supports high bandwidth; for example, an eMBB terminal can support a channel bandwidth of 100MHz. Considering energy-saving requirements, the 5G standard introduces bandwidth part (BWP), where network devices can configure BWP bandwidth at the resource block (RB) granularity. As one possible implementation, depending on the terminal's capabilities, up to four UE-specific BWPs can be configured for the UE.

[0117] BWP, also known as carrier bandwidth part, consists of a consecutive positive integer number of resource elements in the frequency domain, such as a consecutive positive integer number of subcarriers, resource blocks (RBs), or resource block groups (RBGs). An RB contains a positive integer number of subcarriers, for example, 12; an RBG contains a positive integer number of RBs, for example, 4 or 8, etc.

[0118] A BWP can be a downlink BWP or an uplink BWP. The uplink BWP is used by the UE to send signals to the base station, and the downlink BWP is used by the base station to send signals to the UE. In this application embodiment, the positive integer number can be 1, 2, 3, or more; this application does not impose any limitation.

[0119] For example, Figure 1 The BWP configured by the base station for the terminal is shown.

[0120] 2. Low-capacity terminals

[0121] Low-capability terminals can also be called 5G new radio light (NRL) terminals, low-complexity terminal devices, or low-cost terminal devices. For example, an R17 terminal is a low-capability terminal.

[0122] Because low-capability terminals may have a massive number of connections and a massive amount of data to be transmitted, congestion may occur in some scenarios if a large number of low-capability terminals exist in the same area and access the same BWP (e.g., control resource set (CORESET#0)). For example, low-capability terminals may affect legacy UEs.

[0123] In some examples, the traditional terminal can be a non-low-capability terminal or an R15 / 16 terminal device.

[0124] To avoid or reduce the impact of low-capability terminals on traditional terminals, network devices (such as base stations) can configure a separate initial BWP for low-capability terminals. This separate initial BWP is distinct from the BWP of the traditional terminal. Alternatively, the separate initial BWP is distinct from the initial BWP configured in SIB1. For example, such as... Figure 2A , Figure 2B Examples of initial BWP for traditional terminals and independent initial BWP for low-capability terminals are shown. In some schemes, such as Figure 2A Traditional terminals typically include the bandwidth of CORESET#0 in their initial BWP, which contains resources for receiving update instructions for system information. In some schemes, such as... Figure 2B The initial BWP of a traditional terminal includes the resources (such as bandwidth) corresponding to the SSB, and the resources of the SSB are used by the terminal to receive the SSB.

[0125] By configuring a separate initial BWP for low-capability terminals, low-capability or partially low-capability terminals can be diverted to frequency domain resources different from those of traditional terminals, thereby achieving load balancing.

[0126] 3. Small data transmission (SDT)

[0127] In the R15 standard, a terminal in an inactive state (also known as an idle state or disconnected state) needs to go through a connection recovery process to enter a connected state (also known as an active state or non-idle state) and perform service transmission in the connected state. After transmitting services, the terminal can return to the inactive state.

[0128] The Release 17 standard introduced inactive SDT (Short-Terminal Depth-of-Touch) mode, allowing terminals to transmit SDT services without entering connected mode. In the SDT transmission scheme, the terminal does not need to switch between different states, avoiding significant power consumption. Inactive SDT service transmission can employ any of the following methods:

[0129] Method 1: In the inactive state, low-capability terminals carry SDT services through random access messages. For example, the terminal carries SDT services in message 3 of the 4-step random access procedure. Alternatively, the terminal carries SDT services in message A (MSGA) of the 2-step random access procedure.

[0130] Subsequently, if the terminal still has uplink or downlink data, after the random access contention is resolved, the terminal can remain inactive and continue uplink or downlink data transmission through network dynamic scheduling. Once the data transmission is complete, the terminal can be quickly released.

[0131] Method 2: In the inactive state, if the timing advance (TA) is valid, the terminal can directly transmit SDT services on the configured grant (CG) resources without needing to enter the active state. The validity of the TA can be determined by measuring the synchronization signal block (SSB) of the terminal.

[0132] Optionally, timing advance can also be referred to as timing adjustment. This application does not limit the specific name of TA.

[0133] In addition, during the CG-SDT process, the network can also transmit uplink and downlink data through dynamic dispatch (DG).

[0134] Currently, resources for transmitting SDT services can be configured within a standalone initial BWP, meaning that the standalone initial BWP includes resources for transmitting SDT services.

[0135] 4. Cell-defined SSB (CD-SSB)

[0136] Currently, in the disconnected state, low-capability terminals receive paging messages on the CD-SSB-related BWP. If the low-capability terminal's independent initial BWP is used for random access (RACH) and not for paging, then the independent initial BWP may not include SSB / CORESET#0 / SIB.

[0137] 5. Non-cell defined SSB (NCD-SSB)

[0138] The terminal supports NCD-SSB-based measurements (e.g., mobility measurement (radio resource management, RRM)) to ensure transmission performance. The difference between NCD-SSB and CD-SSB is that CD-SSB can also indicate the transmission of System Information Blocks (SIBs), while NCD-SSB, used for measurement, does not need to indicate System Information Blocks.

[0139] It is evident that for low-capability terminals, due to their narrow bandwidth, in some scenarios, such as... Figure 2A , Figure 2BAs shown, the independent initial BWP of a low-capability terminal does not cover the bandwidth corresponding to the SSB and / or CORESET#0, preventing the low-capability terminal from performing certain functions and resulting in poor communication performance. For example, the low-capability terminal cannot measure the SSB on the independent initial BWP, making it unable to synchronize with network devices and affecting its subsequent communication performance.

[0140] To address the aforementioned technical problems, embodiments of this application provide an information transmission method. For example... Figure 3 This describes the architecture of the communication system to which the embodiments of this application apply. The communication system includes a network device and one or more terminals communicating with the network device (e.g., ...). Figure 3 Terminals 1 to 6 in the middle.

[0141] Among them, network equipment is an access device that allows terminal devices to access the mobile communication system wirelessly. It can be a base station (NodeB), an evolved NodeB, a base station in a 5G mobile communication system, a base station in a future mobile communication system, or an access node in a wireless fidelity (Wi-Fi) system, etc. The embodiments of this application do not limit the specific technology or specific equipment form used by the network equipment.

[0142] Optionally, terminal equipment can also be referred to as a terminal, user equipment (UE), mobile station (MS), mobile terminal (MT), etc. Terminal equipment can be a mobile phone, tablet, computer with wireless transceiver capabilities, virtual reality (VR) terminal equipment, augmented reality (AR) terminal equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, and so on.

[0143] Optionally, network devices and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can also be deployed in the air on aircraft, balloons, and satellites. The embodiments of this application do not limit the deployment or application scenarios of network devices and terminal devices.

[0144] The embodiments of this application can be applied to downlink signal transmission, uplink signal transmission, and device-to-device (D2D) signal transmission. For downlink signal transmission, the transmitting device is a network device, and the corresponding receiving device is a terminal device. For uplink signal transmission, the transmitting device is a terminal device, and the corresponding receiving device is a network device. For D2D signal transmission, both the transmitting and receiving devices are terminal devices. The embodiments of this application do not limit the direction of signal transmission.

[0145] Communication between network devices and terminal devices, as well as between terminal devices, can be achieved through licensed spectrum, unlicensed spectrum, or a combination of both. Communication between network devices and terminal devices, as well as between terminal devices, can also be achieved through spectrum below 6 GHz, spectrum above 6 GHz, or a combination of both. The embodiments of this application do not limit the spectrum resources used between network devices and terminal devices.

[0146] It should be noted that the term "communication" in the embodiments of this application can also be described as "data transmission", "information transmission" or "transmission", etc.

[0147] Figure 3 This is just an illustration; the communication system may also include other devices, such as wireless repeaters and wireless backhaul devices. Figure 3 Not shown in the diagram. The embodiments of this application do not limit the number of network devices and terminal devices included in the mobile communication system.

[0148] In this embodiment, the means for implementing the functions of the terminal device can be the terminal device itself, or it can be a means that supports the terminal device in implementing the functions, such as a chip system. In this embodiment, the chip system can be composed of chips, or it can include chips and other discrete devices. Similarly, the means for implementing the functions of the network device can be the network device itself, or it can be a means that supports the network device in implementing the functions.

[0149] The system architecture and business scenarios described in this application are intended to more clearly illustrate the technical solutions of this application, and do not constitute the only limitation on the technical solutions provided in this application. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in this application are also applicable to similar technical problems.

[0150] Optionally, the terminal device or network device in this application embodiment can be equipped with... Figure 4 The communication device described is used to implement this structure. Figure 4 The diagram shows the hardware structure of a communication device provided in an embodiment of this application. The communication device 200 includes at least one processor 201, a memory 203, and at least one communication interface 204. The memory 203 may also be included within the processor 201.

[0151] The processor 201 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits used to control the execution of the program of the present application.

[0152] The components may also include communication lines, which may include a path for transmitting information between the components.

[0153] Communication interface 204 is used for communication with other devices. In this embodiment, the communication interface can be a module, circuit, bus, interface, transceiver, or other device capable of communication functions, used for communication with other devices. Optionally, when the communication interface is a transceiver, the transceiver can be a separately configured transmitter used to send information to other devices, or it can be a separately configured receiver used to receive information from other devices. The transceiver can also be a component that integrates sending and receiving information functions; this embodiment does not limit the specific implementation of the transceiver.

[0154] The memory 203 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital versatile optical discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but not limited thereto. The memory may exist independently and be connected to the processor via communication lines. The memory may also be integrated with the processor.

[0155] The memory 203 stores computer execution instructions for implementing the solutions of this application, and its execution is controlled by the processor 201. The processor 201 executes the computer execution instructions stored in the memory 203, thereby implementing the information transmission method provided in the following embodiments of this application.

[0156] Optionally, the computer execution instructions in the embodiments of this application may also be referred to as application code, instructions, computer program or other names, and the embodiments of this application do not specifically limit them.

[0157] In a specific implementation, as one embodiment, the processor 201 may include one or more CPUs, for example... Figure 4 CPU0 and CPU1 in the CPU.

[0158] In a specific implementation, as one example, the communication device 200 may include multiple processors, such as... Figure 4 Processors 201 and 207 are described herein. Each of these processors may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor here may refer to one or more devices, circuits, and / or processing cores used to process data (e.g., computer program instructions).

[0159] In a specific implementation, as one embodiment, the communication device 200 may further include an output device 205 and an input device 206. The output device 205 communicates with the processor 201 and can display information in various ways. For example, the output device 205 may be a liquid crystal display (LCD), a light-emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector, etc. The input device 206 communicates with the processor 201 and can receive user input in various ways. For example, the input device 206 may be a mouse, keyboard, touchscreen device, or sensing device, etc.

[0160] The aforementioned communication device 200 can be a general-purpose device or a special-purpose device; the embodiments of this application do not limit the type of communication device 200. The terminal or access network device can be equipped with… Figure 4 Devices with similar structures.

[0161] The following description, in conjunction with the accompanying drawings, illustrates the information transmission method provided in the embodiments of this application.

[0162] Example 1

[0163] See Figure 5 The information transmission method provided in this application includes the following steps:

[0164] S101. During the first time period, the network device sends an update indication of the SSB on the resource corresponding to the SSB and / or on the resource corresponding to CORESET#0.

[0165] Accordingly, during the first time period, the terminal device receives an update indication of system information on the resource corresponding to the SSB and / or on the resource corresponding to CORESET#0. The update indication is used to indicate whether the system information has been updated.

[0166] The terminal can be a low-capability terminal or a terminal with similar characteristics.

[0167] For example, resources can be at least one of the following: frequency domain resources, time domain resources, bandwidth, resource blocks, BWP, control resource sets, and subbands.

[0168] Optionally, the first time period can also be referred to as an interval (GAP), an interruption period, a measurement window, or a reception window, or one or more of these.

[0169] The terminal receiving the SSB within the first time period can mean that within that first time period, the terminal receives the SSB and determines the validity of the TA based on the SSB. The first time period includes the time the terminal uses to process the SSB. In some schemes, the validity of the TA can be used to determine the synchronization quality between the terminal and network devices, thereby improving transmission reliability.

[0170] The terminal receives an update indication within the first time period, which can mean that the terminal receives and processes the update indication within the first time period. In some schemes, if the update indication received by the terminal within the first time period indicates that the system information has been updated, the terminal listens for the updated system information. If the update indication received by the terminal within the first time period indicates that the system information has not been updated, the terminal does not need to listen for system information for a short period of time. In some examples, the terminal can switch to the first BWP (Independent Initial BWP) to perform SDT service transmission.

[0171] Optionally, the resources corresponding to the SSB do not overlap with the first BWP (e.g., an independent initial BWP) in the frequency domain. Alternatively, the resources corresponding to CORESET#0 do not overlap with the first BWP in the frequency domain. The frequency domain resources corresponding to the SSB and the frequency domain resources corresponding to CORESET#0 can be referred to as frequency domain resources outside the bandwidth of the first BWP.

[0172] For example, such as Figure 2A The resources corresponding to CORESET#0 do not overlap with the independent initial BWP. For another example, such as... Figure 2A The resources corresponding to the SSB do not overlap with the independent initial BWP.

[0173] As one possible implementation, the terminal device does not transmit SDT services during the first time period. For example, the terminal device is not required to send or receive information within the first BWP during the first time period.

[0174] Optionally, system information includes, but is not limited to, any one or more of the following: paging messages, downlink control information (DCI) used to schedule paging messages, public warning system (PWS) messages, system information blocks, DCI for scheduling system information blocks, system information block 6 (SIB6), system information block 7 (SIB7), system information block 8 (SIB8), and information in CORESET#0.

[0175] As one possible implementation, network devices send system information periodically. For example, they might send system information every 10ms.

[0176] As one possible implementation, network devices update system information periodically, which can be called the system information update cycle. For example, the system information is updated every 10,000 ms.

[0177] Optionally, the DCI can be scrambled by a radio network temporal identity (RNTI) used to scramble system information (such as S-RNTI), or by a radio network temporal identity (P-RNTI) used to scramble paging messages, or by other scrambling methods.

[0178] Correspondingly, the system information update indications include: system information block update indications, paging message update indications, PWS update indications, paging messages, DCI used for scheduling paging messages, and information in CORESET#0.

[0179] The above examples illustrate several instances of system information. System information can also include other types of information, such as information that a terminal device can receive in a disconnected state. By receiving system information, the communication performance of the terminal device can be improved. Similarly, update instructions can be other types of instruction information.

[0180] For example, if the BWP includes paging resources, the update indication can be an update indication received during the transmission of the SDT.

[0181] For example, system information is transmitted in the first DCI. Optionally, the format of the first DCI is format 1_0.

[0182] For example, the first DCI can be scrambled by TC-RNTI, or by RA-RNTI, or by MsgB-RNTI, or by C-RNTI.

[0183] For example, the first DCI scrambled by TC-RNTI includes a "Downlink assignment index" field, which consists of 2 bits and is reserved. Traditional terminals typically do not read the information in this field or consider it invalid. Similarly, the first DCI scrambled by RA-RNTI also has reserved bits. It is possible to use the reserved fields in the first DCI to carry or represent an update indication of system information.

[0184] For example, for low-capability terminals, the first DCI scrambled with TC-RNTI does not include the "Downlink assignment index" field, but includes the "System Information Update" field. For traditional terminals, the first DCI scrambled with TC-RNTI includes the "Downlink assignment index" field, but does not include the "System Information Update" field. The aforementioned "Downlink assignment index" field and the "System Information Update" field have the same bit position in the first DCI. For example, the same bit position can be understood as the 10th and 11th bits in the first DCI.

[0185] For example, for low-capability terminals, the number of bits in the reserved field included in the first DCI is AB (A minus B), and this reserved field is the "System Information Update" field. For traditional terminals, the number of bits in the reserved field included in the first DCI is A, and this field is not used as the "System Information Update" field. Here, A is an integer, and B is an integer. For example, A = 16, B = 2. For example, the number of bits in the System Information Update field is 1 or 2.

[0186] For example, the "System Information Update" field mentioned above can not only indicate whether the system information has been updated, but can also be used to indicate that the terminal has entered the connected state.

[0187] Optionally, the first signal includes one or more of the following signals: SSB, synchronization signal / physical broadcast channel block (SS / PBCH block), cell-defined SSB (CD-SSB), non-cell-defined SSB (NCD-SSB), channel state information-reference signal (CSI-RS), tracking reference signal (TRS), phase tracking reference signal (PTRS), and demodulation reference signal (DMRS). The first signal is used to determine the validity of the TA.

[0188] For example, the first signal is used in the SDT process to determine the validity of TA.

[0189] As one possible implementation, network devices can configure the resources corresponding to the SSB and CORESET#0 for the terminal.

[0190] As one possible implementation, such as Figure 6A The above S101 can be implemented as follows: S101a, during the first time period, the network device sends the SSB on the resource corresponding to the synchronization signal block SSB. For example, as shown... Figure 7A As shown, during the first time period (e.g., GAP1), the network device sends an SSB, and correspondingly, the terminal device receives the SSB during the first time period. Optionally, the terminal device receiving the SSB during the first time period can be implemented as follows: during the first time period, the terminal device receives and processes the SSB (e.g., determines the validity of the TA based on the SSB).

[0191] Optional, such as Figure 7B As shown, the network device sending an SSB within the first time period can be implemented as follows: within the first time period, the network device sends the SSB on the bandwidth of the SSB. Correspondingly, the terminal device receiving the SSB within the first time period can be implemented as follows: within the first time period, the terminal device receives the SSB on the bandwidth of the SSB.

[0192] As one possible implementation, such as Figure 6B The above S101 can be implemented as follows: S101b, within the first time period, the network device sends an update indication of system information on the resource corresponding to the control resource set CORESET#0. For example, such as... Figure 8A As shown, during the first time period (e.g., GAP2), the network device sends an update instruction for system information, and correspondingly, the terminal device receives the update instruction during the first time period. Optionally, such as... Figure 8B As shown, the network device sends an update indication within the first time period, which can be implemented as follows: within the first time period, the network device sends an update indication on the bandwidth of CORESET#0.

[0193] As one possible implementation, such as Figure 6C The above S101 can be implemented as follows: S101c, within the first time period, the network device sends the SSB on the resource corresponding to the synchronization signal block SSB, and sends an update indication of system information on the resource corresponding to the control resource set CORESET#0. For example, as... Figure 9A As shown, during the first time period (e.g., GAP3), the network device sends an update instruction for system information and an SSB; correspondingly, during the first time period, the terminal device receives the update instruction and the SSB. Optionally, such as... Figure 9BAs shown, the network device sending an update indication within the first time period can be implemented as follows: within the first time period, the network device sends an update indication on the bandwidth of CORESET#0. The network device sending an SSB within the first time period can be implemented as follows: within the first time period, the network device sends an SSB on the bandwidth of the SSB.

[0194] In this scheme, since both the network device and the terminal device can determine the first time period, they can exchange SSB and / or update indications within that first time period. This improves the success rate of SSB and / or update indication exchange, thereby enhancing the communication performance of the terminal device in subsequent communication processes. For example, since the terminal device knows it should listen for SSB and / or update indications during the first time period, it only listens for SSB and / or update indications when the first time period arrives, and not during other time periods. This ensures a high success rate for listening and avoids poor communication performance caused by the terminal device missing the listening opportunity (such as being unable to verify the validity of TA and thus unable to synchronize with the network device, or being unable to successfully receive PWS).

[0195] S102. During the second time period, the terminal device transmits SDT services on the first BWP.

[0196] The second time period does not overlap with the first time period. The first BWP does not include the resources of the SSB and / or the resources of CORESET#0.

[0197] Optionally, the first BWP may include an independent initial downlink BWP or an independent initial uplink BWP. For example, the first BWP may be an initial uplink BWP or an initial downlink BWP.

[0198] SDT service, also known as the first service, is a data transmission service in a connectionless state. As technology evolves, the first service can be replaced by other similar services.

[0199] For example, as Figure 7A During the second time period, SDT services are transmitted between network devices and terminal devices. Optional, such as... Figure 7B As shown, during the second time period, the transmission of SDT services between the network device and the terminal device can be achieved as follows: during the second time period, the network device and the terminal device transmit SDT services on an independent initial BWP.

[0200] It should be noted that, taking receiving update instructions as an example, during the first time period, the terminal device receives update instructions on CORESET#0. For example, after the first time period, the terminal device transmits SDT services on the first BWP. Similarly, before the first time period, the terminal device transmits SDT services on the first BWP. This ensures that the network device and the terminal device transmit information on the same BWP within the same time period, avoiding information transmission failures caused by inconsistencies in understanding. Alternatively, the terminal device can also receive update instructions while transmitting SDT services.

[0201] The first BWP does not include the resources of the SSB and / or the resources of the CORESET#0. This can be because the resources of the first BWP and the SSB do not overlap; or, the resources of the first BWP and the CORESET#0 do not overlap; or, the resources of the first BWP and the SSB do not overlap, and the resources of the first BWP and the CORESET#0 do not overlap. Optionally, non-overlapping resources can refer to non-overlapping resources in the frequency domain. Optionally, non-overlapping resources can refer to partial non-overlapping resources in the frequency domain. For example, the first BWP does not completely include the SSB. For example, the first BWP does not completely include CORESET#0.

[0202] In some embodiments, the configuration parameters for the first time period are predefined; in other words, the terminal can determine the configuration parameters for the first time period based on predefined information. This method can save signaling overhead.

[0203] Alternatively, the configuration parameters for the first time period can be determined according to preset rules. In other words, the terminal can determine the configuration parameters for the first time period based on preset rules. Determining the configuration parameters for the first time period based on preset rules offers a degree of flexibility and reduces signaling overhead.

[0204] Alternatively, the configuration parameters for the first time period can be configured by the network device. In other words, the terminal can determine the configuration parameters for the first time period based on signaling received from the network device. The configuration parameters for the first time period can be configured by the network device via radio resource control (RRC) signaling, DCI, or system information. This method allows for flexible configuration of the first time period's parameters, satisfying dynamic network scheduling.

[0205] Optionally, the configuration parameters of the first time period include at least two of the following: start time, length, end time, and period. The terminal device can determine at least two of the configuration parameters of the first time period and determine the first time period based on the at least two configuration parameters. The configuration parameters of the first time period may also include other parameters, as long as they can be used to determine the specific time domain location of the first time period.

[0206] Optionally, the start time of the first time period includes at least one of the following: a start time slot, a start symbol, a start frame, and a start subframe. Optionally, the end time of the first time period includes at least one of the following: an end time slot, an end symbol, an end frame, and an end subframe. Optionally, the length of the first time period includes at least one of the following: the number of time units occupied by the first time period, the number of symbols occupied, the number of time slots occupied, the number of frames occupied, and the number of subframes occupied. The configuration parameters can also be in other forms, and this embodiment does not limit them.

[0207] Optionally, the start time of the first time period is determined based on one or more of the following information:

[0208] The time unit in which the update indication is located, the start time of the radio frame in which the update indication is located, the time unit in which the SSB is located, the start time of the radio frame in which the SSB is located, and the radio frequency retuning time.

[0209] The radio frequency (RF) tuning time can be the time it takes for the terminal to switch from a first frequency band to a second frequency band. The RF tuning time can be determined based on the terminal's capabilities. In some examples, the terminal can report capability information to the network device, which can then determine the terminal's RF tuning time based on this information.

[0210] In this embodiment of the application, the time unit can be a time slot, symbol, subframe, frame, microsecond, millisecond, or second, or other time unit.

[0211] For example, such as Figure 10 The diagram shows the radio frame containing the update indication, where black fill indicates the time slot (time slots B, C, D, E). The start time of the radio frame can be the starting time slot (i.e., time slot A). The start time (e.g., the starting time slot) of the first time period used to transmit the update indication can be determined based on time slots B, C, D, and E. For example, the start time of the first time period is time slot B. Alternatively, the start time of the first time period can be determined based on time slot A. For example, ... Figure 10 The first time period begins at time slot A. The terminal can receive update instructions within the first time period; for example, the terminal can receive and process update instructions within the first time period.

[0212] For example, such as Figure 11The radio frame containing the SSB is shown, where black fill indicates the time slot (time slot B1, C1, D1) where the SSB is located. The start time of the radio frame can be the start time slot (i.e., time slot A1). The start time of the first time period used to receive the SSB can be determined based on time slots B1, C1, and D1. Alternatively, the start time of the first time period can be determined based on time slot A1. The terminal can receive the SSB within the first time period; for example, the terminal can receive the SSB within the first time period and determine the validity of the TA based on the SSB.

[0213] In some examples, considering that the terminal needs a certain amount of time to switch frequency bands, that is, it takes a certain amount of time for the terminal to switch from working in the first frequency band to working in the second frequency band, in the embodiments of this application, the terminal can switch to the bandwidth corresponding to SSB or the bandwidth corresponding to CORESET#0 in advance according to the tuning time.

[0214] For example, such as Figure 12 Assuming the tuning time is T1, and the first time slot of the radio frame containing the update indication is time slot A, then the low-capability terminal can determine the start time of the first time period based on time slot A and the tuning time T1. For example, Figure 12 The first time period begins at time t1, which is the time interval T1 before time slot A. Within time slot T1, the low-capacity terminal first switches from the first BWP (e.g., independent initial) to the bandwidth of CORESET#0, and then receives the system information update indication on the bandwidth of CORESET#0.

[0215] For example, such as Figure 13 Assuming the tuning time is T1, and the first time slot of the radio frame containing the update indication is time slot A, then the low-capability terminal can determine the start time of the first time period based on time slots B, C, and D (i.e., the time slot containing the update indication) and the tuning time T1. For example, Figure 13 The first time period begins at time t1', which is the time interval T1 before time slot B. During the first time period T1, the low-capacity terminal first switches from the first BWP (e.g., independent initial) to the bandwidth of CORESET#0, and then receives the system information update indication on the bandwidth of CORESET#0.

[0216] Similarly, a low-capability terminal can determine the start time of the first time period based on the time unit where the SSB is located and the tuning time. Alternatively, a low-capability terminal can determine the start time of the first time period based on the start time of the radio frame where the SSB is located and the tuning time.

[0217] It should be noted that the start time of the first time period can also be determined based on other information. For example, the Lth (positive integer)th paging opportunity (PO) within each paging cycle can be predefined as the start time of the first time period. The paging opportunity can be used to transmit paging messages.

[0218] Optionally, the length of the first time period is related to the first parameter. Considering that the first time period is used to receive the SSB and / or to receive the update indication, the first parameter should be related to the time of receiving and processing the relevant signals. The relevant signals are those related to the SSB and / or the update indication.

[0219] Optionally, the first parameter includes any one or more of the following: radio frequency tuning time, duration of the SSB (duration of the time unit where the SSB is located), duration of detecting the SSB, duration of downlink signal, processing duration of downlink signal, duration of update indication, processing duration of update indication, duration of system information, processing duration of system information, whether the system information has been updated, update time of system information, update cycle of system information, paging cycle, duration of paging opportunity, and time domain resources of available paging opportunities corresponding to the SSB.

[0220] Optionally, the downlink signal includes, but is not limited to, any one or more of the following signals: signals transmitted on the physical downlink control channel (PDCCH) and signals transmitted on the physical downlink shared channel (PDSCH).

[0221] Optionally, the duration of SSB detection can also be referred to as the duration of SSB processing. The duration of SSB detection includes the duration of determining the validity of TA based on SSB.

[0222] For example, when the first time period is used to receive the SSB, the first time period includes the duration of the SSB. For example, such as Figure 11 The length of the first time period can be the total duration of time slots B1, C1, and D1.

[0223] For another example, when the first time period is used to receive the SSB, the first time period includes the duration of the SSB (e.g., T2) and the duration for determining the validity of the TA based on the SSB (e.g., T3).

[0224] As another example, the length of the first time period can be flexibly adjusted. Optionally, the length of the first time period is related to whether the system information is updated. For example, such as... Figure 16In (a), assuming the initial first time period is GAP4, during this first time period, the terminal receives an update indication on CORESET#0. If the update indication indicates that the system information has not been updated, the terminal does not need to monitor the system information for a short period. As a possible implementation, the terminal can switch to the first BWP (e.g., an independent initial BWP) after the first time period to transmit SDT services on the first BWP.

[0225] For another example, the length of the first time period is a fixed value. For instance, the first time period may be *a* time units, where *a* is a positive integer. Alternatively, the first time period may be one or two time slots. Or, the first time period may be 20 symbols. Or, the first time period may be 1000 microseconds or 2000 microseconds. Or, the first time period may be 1.5 milliseconds.

[0226] For example, such as Figure 14 The first time period includes x time units (duration T1) preceding the SSB. Optionally, the x time units are determined based on the RF tuning time. For example, the x time units are 140μs, 280μs, 70μs, or 560μs.

[0227] For example, such as Figure 15 The first time period includes x time units (duration T1) preceding the paging opportunity. The terminal can receive update instructions within the first time period. The terminal can receive paging messages within the paging opportunity.

[0228] For example, such as Figure 16 In (a), assume the initial first time period is GAP4. During GAP4, the terminal receives an update indication on CORESET#0. If the update indication indicates that system information has been updated, the terminal needs to listen for system information. In one example, assuming no updated system information is transmitted during the initial first time period GAP4, the terminal can extend the first time period. For example, the first time period can be extended from GAP4 to... Figure 16 GAP5 is shown in (b). Within GAP5, the terminal listens for updated system information. After GAP5, the terminal can switch to the first BWP (e.g., the standalone initial BWP) to transmit SDT services on the first BWP.

[0229] For example, such as Figure 17A After the system information is updated, the network device first sends an update instruction within the current update cycle (e.g., update cycle A). The network device can send system information A within update cycle A. As one possible implementation, the network device can send system information A multiple times within update cycle A.

[0230] The updated system information B is sent in the next update cycle B (the start time of which is assumed to be t2). Optionally, the network device may send the system information B multiple times within the update cycle B.

[0231] Optionally, after receiving the update instruction on CORESET#0, whether the terminal switches back to the first BWP (related to the length of the first time period) depends on the time interval between the current time and t2. For example, if the current time (e.g.) Figure 17A If t3) is close to t2, the terminal will not switch back to the first BWP, but will continue to listen for system information on CORESET#0. This is to prevent the terminal from switching back to the first BWP and then switching back to CORESET#0 to listen for updated system information B. Correspondingly, as... Figure 17A The first time period can be extended until the terminal has received the updated system information B.

[0232] For example, if at the current moment (e.g.) Figure 17B If t3 is far from t2, the terminal can switch back to the first BWP. Then, after the second time period, the terminal switches from the first BWP to CORESET#0 to listen for updated system information B.

[0233] For another example, taking system information as the paging message, such as... Figure 18 The length of the first time period is related to the duration of the paging opportunity. The network device sends a paging message when the paging opportunity arises, and the terminal device listens for and processes the paging message within the first time period (e.g., the length is greater than or equal to the duration of the paging opportunity or the paging message).

[0234] For example, y time units following the last symbol in the system information. These y time units are determined based on the first parameter.

[0235] For example, the y time units are determined based on the RF tuning time and the duration of PDSCH processing by the terminal device. For instance, the y time units are the sum of the tuning time and the duration of PDSCH processing by the terminal device.

[0236] For another example, the y time units are determined based on whether the system information has been updated. For instance, if the system information has been updated, the y time units are determined based on the tuning time and the duration of the terminal device processing the signal (or information) carrying the system information update indication. The terminal device tunes back to the first BWP after receiving the system information update indication. For yet another example, if the system information has not been updated, the y time units are determined based on the tuning time, the duration of the terminal device processing the signal (or information) carrying the system information update indication, the transmission time of the system information, and the time the terminal device processes the system information. For yet another example, if the system information has been updated, the y time units are determined based on the tuning time, the duration of the terminal device processing the signal (or information) carrying the system information update indication, the transmission time of the system information, and the time the terminal device processes the system information. For example, if the time interval between the transmission of the updated system information and the transmission of the system information update indication is greater than or equal to a first threshold, the terminal device tunes back to the first BWP after receiving the system information update indication. For example, if the time interval between the transmission of the updated system information and the transmission of the system information update indication is less than or equal to the first threshold, the terminal device receives the system information at the first opportunity in the next system information update cycle. For example, network devices are configured to receive system information update instructions at specific times or within specific time periods.

[0237] Optionally, the period of the first time period is determined based on any of the following information: paging cycle, discontinuous reception (DRX) period, extended discontinuous reception (eDRX) period, system information update period, and extended discontinuous reception acquisition (eDRX acquisition) period.

[0238] For example, such as Figure 18 In each paging cycle, the Mth (positive integer)th to Nth (positive integer)th time slot constitutes the first time segment. For example, if the terminal transmits SDT services on the first BWP (Independent Initial BWP), when the start time of the first time segment of paging cycle A arrives, the terminal switches to the bandwidth corresponding to the SSB to receive the SSB. After the first time segment, the terminal can switch back to the first BWP to transmit SDT services. Then, when the start time of the first time segment of paging cycle B arrives, the terminal switches to the bandwidth corresponding to the SSB to receive the SSB. After the first time segment, the terminal can switch back to the first BWP.

[0239] It should be noted that there are other configuration methods available for the first time period. For example, such as... Figure 19Assuming time n is the start time of uplink transmission, or the start time of uplink transmission resources, or the start time of pre-configured (CG) resources, and within the time window [nmL, nm], the terminal is allowed to interrupt SDT service transmission, or the terminal does not expect the network device to send downlink signals (e.g., SDT services), or the network device does not schedule the terminal device to send uplink signals, or the terminal device does not need to transmit SDT services, or does not require the terminal device to transmit SDT services, then the first time period can be the time window [nmL, nm]. Figure 19 The terminal can receive SSB and / or update indications within the first time period and send SDT services on the uplink time domain resources.

[0240] Where m and n are integers greater than or equal to 0.

[0241] Prior to the first time period, the method further includes:

[0242] During the third time period, the terminal device transmits SDT services. For example, such as... Figure 8A As shown, during the third time period, the terminal device transmits SDT services on the first BWP. Afterwards, when the first time period ends, the terminal device switches to a corresponding resource outside the first BWP to receive update instructions. Then, the terminal device switches back to the first BWP to transmit SDT services. It can be seen that during SDT service transmission, the terminal device can pause SDT service transmission during the first time period to listen for corresponding messages (SSB and / or update instructions), thereby improving the terminal device's communication performance by listening to these messages.

[0243] Example 2

[0244] This application also provides an information transmission method, which can configure resources for receiving NCD-SSB and / or receiving update indications in a first BWP for a low-capability terminal. Thus, the low-capability terminal can transmit SDT services and receive NCD-SSB on the first BWP. Alternatively, the low-capability terminal can transmit SDT services and receive update indications on the first BWP. Or, the low-capability terminal can transmit SDT services and receive NCD-SSB and update indications on the first BWP.

[0245] like Figure 20 The method includes the following steps:

[0246] S201. The network device sends a second signal on the first BWP and / or sends an update indication of system information on the first BWP, the update indication being used to indicate whether the system information has been updated.

[0247] Accordingly, the terminal receives the second signal on the first BWP and / or receives an update indication of system information on the first BWP.

[0248] The second signal includes, but is not limited to, NCD-SSB. The second signal can be used to determine the validity of a TA. The following primarily uses NCD-SSB as an example, but this does not constitute a limitation on the second signal; other signals can also be used to determine the validity of a TA.

[0249] The first BWP (Independent Initial BWP) does not include CD-SSB and / or control resource set CORESET#0, and the first BWP includes the resources corresponding to the NCD-SSB and / or the resources corresponding to the update indication.

[0250] The first BWP does not include CD-SSB, which can be understood as not including the complete CD-SSB.

[0251] The first BWP does not include CORESET#0, which can be understood as not including the complete CORESET#0. For example, for frequency band FR1, the first BWP not including CD-SSB and / or CORESET#0 can be understood as not including CD-SSB and CORESET#0, or not including CD-SSB, or not including CORESET#0. For example, for frequency band FR1, the first BWP not including CD-SSB and / or CORESET#0 can be understood as not including CD-SSB.

[0252] In this embodiment, for low-capability terminals, if the first BWP is configured with resources for transmitting SDT services, the terminal expects the first BWP to include resources corresponding to the NCD-SSB and / or resources corresponding to the update indication (e.g., resources corresponding to the first signal) and / or resources corresponding to the update indication. For network devices, if the first BWP is configured with resources for transmitting SDT services, the network device should configure resources corresponding to the NCD-SSB and / or resources corresponding to the update indication within the first BWP. For example, for frequency band FR1, if the first BWP is configured with resources for transmitting SDT services, but the first BWP does not include the CD-SSB and the complete CORESET#0, the terminal expects the first BWP to include resources for the first signal. For example, for the FR1 frequency band, if the first BWP is configured with resources for transmitting SDT services, but the first BWP does not include the CD-SSB and the complete CORESET#0, the terminal is not required to receive update indications or paging messages. For example, for frequency band FR2, if the first BWP is configured with resources for transmitting SDT services, and the first BWP does not include a CD-SSB, then the terminal expects the first BWP to include resources for the first signal. For example, for frequency band FR2, if the first BWP is configured with resources for transmitting SDT services, and the first BWP does not include a CD-SSB, the terminal is not required to receive update instructions or paging messages.

[0253] Optionally, the configuration information of the first signal is received by the terminal device before entering the non-connected state, or received in the connected state. For example, the configuration information of the first signal includes at least one of the following: configuration information of the frequency domain resources of the first signal, configuration information of the period of the first signal, configuration information of the time domain resources of the first signal, and configuration information of the power of the first signal.

[0254] Optionally, the first BWP includes the resources corresponding to the NCD-SSB and / or the resources corresponding to the update indication, and can be implemented as follows:

[0255] The first BWP includes the resource corresponding to the update indication, or the first BWP includes the resource corresponding to the NCD-SSB and the resource corresponding to the update indication, or the first BWP includes the resource corresponding to the NCD-SSB.

[0256] For example, such as Figure 21A As shown, the first BWP (Independent Initial BWP) does not include the CD-SSB, but it does include the resources corresponding to the NCD-SSB (such as the bandwidth of the NCD-SSB). Correspondingly, as... Figure 21B Step S201 can be implemented as follows: S201a, receiving NCD-SSB on the first part of the bandwidth BWP.

[0257] Or, such as Figure 22A As shown, the first BWP (Independent Initial BWP) does not include the CD-SSB, and the first BWP includes the resources (such as bandwidth) corresponding to the update indication. Figure 22B The update indication receiving process under this resource configuration is shown. Step S201 can be implemented as follows: S201b, receive update indication on the first part of the bandwidth BWP.

[0258] Or, such as Figure 23A As shown, the first BWP (Independent Initial BWP) does not include CD-SSB, and the first BWP (Independent Initial BWP) includes the resources of NCD-SSB and the resources corresponding to the update instruction. Figure 23B The update indication receiving process under this resource configuration is shown. Step S201 can be implemented as follows: S201c, receiving NCD-SSB and update indication on the first part of the bandwidth BWP.

[0259] For another example, the first BWP (Independent Initial BWP) does not include CORESET#0, and the first BWP includes the resources corresponding to the NCD-SSB (such as the bandwidth of the NCD-SSB). Alternatively, the first BWP includes the resources of the NCD-SSB and the resources corresponding to the update indication. Alternatively, the first BWP includes the resources corresponding to the update indication.

[0260] For another example, the first BWP (Independent Initial BWP) does not include CORESET#0 and CD-SSB, and the first BWP includes the resources corresponding to NCD-SSB (such as the bandwidth of NCD-SSB). Alternatively, the first BWP includes the resources of NCD-SSB and the resources corresponding to the update instruction. Alternatively, the first BWP includes the resources corresponding to the update instruction.

[0261] Optionally, the update indication is transmitted in the first DCI (see the description in Embodiment 1). Optionally, the update indication is transmitted via RRC signaling.

[0262] Optionally, the configuration parameters of the resource corresponding to the NCD-SSB and / or the configuration parameters of the resource corresponding to the update indication are configured by the network device.

[0263] Optionally, the configuration parameters of the resources corresponding to the NCD-SSB are configured by the network device, including: the configuration parameters of the resources corresponding to the NCD-SSB are carried in RRC signaling or broadcast signaling.

[0264] As one possible implementation, the terminal device receives signaling from the network device before entering the disconnected state or in the connected state, and determines the resource configuration information of the NCD-SSB and / or the resource configuration information of the update indication based on the signaling.

[0265] Optionally, the configuration parameters of the resource corresponding to the update indication are configured by the network device, including: the configuration parameters of the resource corresponding to the update indication are carried in RRC signaling, downlink control channel, or broadcast signaling.

[0266] S202. The terminal device transmits small packet data transmission SDT service on the first BWP.

[0267] It can be seen that when the first BWP includes both the resources for transmitting SDT services and the resources corresponding to the update indication (and / or the resources corresponding to the NCD-SSB), when the terminal device needs to listen to the NCD-SSB, the terminal device does not need to tune from the current resource to the resource where the NCD-SSB is located. This avoids the transmission interruption caused by the terminal device switching back and forth between resources and the impact on the service rate, and can improve the communication performance of the terminal device.

[0268] In other embodiments, when the terminal supports SDT services transmitted in the first BWP, the terminal expects the first BWP to include resources for receiving the second signal and / or resources for receiving update indications. In this manner, the first BWP may include CD-SSB and / or CORESET#0. Alternatively, the first BWP may not include CD-SSB and / or CORESET#0.

[0269] It should be noted that the steps in this invention are not in any particular order. For example, in Embodiment 2, S202 can be performed first and S202 can be performed later.

[0270] Example 3

[0271] This application also provides an information transmission method that can configure the priorities of SDT services, SSB, and update indications. When multiple pieces of information conflict, the lower priority information is discarded to improve the reliability of the higher priority information.

[0272] As one possible implementation, the SDT service has a higher priority than the update indication, and / or the SDT service has a higher priority than the SSB.

[0273] If the third time-frequency resource overlaps with the fourth time-frequency resource, or if the time-domain interval between the third time-frequency resource and the fourth time-frequency resource is less than a threshold, then the SDT service is transmitted; the third time-frequency resource is used to transmit the SDT service, and the fourth time-frequency resource is used to transmit the SSB and / or the update indication, and the third time-frequency resource is a portion of the resources in the first BWP.

[0274] For example, such as Figure 24The resource used for transmitting SDT services is resource A of the independent initial BWP (first BWP) in T1, and the resource used for receiving SSB is resource B of SSB in GAP1. Since resources A and B overlap in the time domain, SDT services are transmitted in the overlapping time unit A instead of SSB, so as to improve the reliability of SDT services.

[0275] For example, such as Figure 25 The resource used for transmitting SDT services is resource A1 of the independent initial BWP (first BWP) in T2, and the resource used for receiving update indications is resource B1 of CORESET#0 in GAP2. Since resources A1 and B1 overlap in the time domain, SDT services are transmitted in the overlapping time unit B instead of update indications, so as to improve the reliability of SDT services.

[0276] For example, such as Figure 26 Assume the resource used for transmitting SDT services is resource A2 of the independent initial BWP (first BWP) within T5, and the resource used for receiving SSBs is resource B2 of the SSB within GAP1. The time interval T1 between resources A2 and B2 is less than the RF tuning time T2. Within T5, the terminal transmits SDT services on the independent initial BWP. Afterwards, because T1 is less than the RF tuning time T2, even if the terminal tunes to resource B2, it cannot receive the complete SSB, affecting the reliability of the terminal's measurements based on the SSB. The terminal continues to transmit SDT services without switching to the resource where the SSB is located.

[0277] In some embodiments, to avoid or reduce conflicts between a third time-frequency resource and a fourth time-frequency resource, the time-domain interval between the third and fourth time-frequency resources can be configured to be greater than a threshold. Optionally, this threshold can be the radio frequency tuning time. For example, Figure 27 The time interval (T1) between the time-domain resource GAP1 used for receiving SSB and the time-domain resource (T5) used for transmitting SDT services is greater than the RF tuning time T2. The time interval (T4) between the time-domain resource GAP1 used for receiving SSB and the time-domain resource (T3) used for transmitting SDT services is greater than the RF tuning time T2.

[0278] It should be noted that some operations in the processes of the above method embodiments may be optionally combined, and / or the order of some operations may be optionally changed. Furthermore, the execution order between the steps of each process is merely exemplary and does not constitute a limitation on the execution order between steps; other execution orders are also possible. It is not intended to indicate that the execution order is the only possible order in which these operations can be performed. Those skilled in the art will conceive of various ways to reorder the operations described herein. Additionally, it should be pointed out that the process details involved in one embodiment of this document are similarly applicable to other embodiments, or different embodiments may be combined.

[0279] Furthermore, some steps in the method embodiments can be equivalently replaced with other possible steps. Alternatively, some steps in the method embodiments may be optional and can be deleted in certain use cases. Or, other possible steps may be added to the method embodiments.

[0280] Furthermore, the above-described method embodiments can be implemented individually or in combination.

[0281] In some embodiments, the method of SSB measurement and / or receiving update indications can be determined based on the terminal capabilities.

[0282] Optionally, the terminal device sends first indication information, and correspondingly, the network device receives the first indication information from the terminal device. The first indication information can be used to indicate the capabilities of the terminal device. This allows the network device to better configure appropriate resources or configurations for the terminal device based on its capabilities. For example, the first indication information can be used to indicate whether the terminal device supports resources corresponding to the first signal and / or CORESET#0 that are not included in the first BWP. For example, the first indication information can be used to indicate that the terminal device does not expect the first signal to be included in the first BWP. For example, the first indication information can be used to indicate that the terminal device expects the first signal to be included in the BWP. For example, the first indication information can be used to indicate that the terminal device needs the first signal to be included in the BWP.

[0283] Optionally, the network device can, based on the capabilities of the terminal device, determine to use the configuration of the first time period as in Embodiment 1, instructing the terminal device to measure SSB and / or receive system information update indications within the corresponding resources. In this way, a more capable terminal device can perform SSB measurement and / or receive system information update indications in frequency domain resources outside the first BWP. Alternatively, the network device can, based on the capabilities of the terminal device, determine to use the configuration of Embodiment 2, configuring resources within the first BWP for receiving SSB (e.g., resources corresponding to NCD-SSB) and / or resources for receiving update indications. In this way, the terminal device can perform SSB measurement and / or receive system information update indications within the first BWP. For example, if the terminal device supports resources corresponding to the first signal and / or CORESET#0 not being included in the first BWP, the network device can use the configuration of the first time period to instruct the terminal device to measure SSB and / or receive system information update indications within the corresponding resources. For example, if the terminal device does not support resources corresponding to the first signal and / or resources corresponding to CORESET#0 that are not included in the first BWP, the network device may use a method of configuring resources for receiving SSB (such as resources corresponding to NCD-SSB) and / or resources for receiving update indications in the first BWP.

[0284] In some embodiments, the method for determining SSB measurements and / or receiving update indications is determined based on whether the network device is configured to perform a first time period.

[0285] Optionally, if the network device has configured a first time period for the terminal device, and the first BWP does not include the resources corresponding to the SSB and / or the resources corresponding to CORESET#0, then during the first time period, the terminal device switches from the first BWP to other resources to perform SSB measurement and / or receive system information update instructions according to the corresponding indication information. Conversely, if the network device has not configured a first time period for the terminal device, the terminal device does not need to switch to other resources to perform SSB measurement and / or receive system information update instructions. For example, if the network device has not configured a first time period for the terminal device, the terminal device does not perform SSB measurement and / or receive system information update instructions in the first BWP.

[0286] The above combination scheme gives network devices greater flexibility in configuration, allowing them to choose the appropriate method based on actual conditions so that terminal devices can measure the first signal (or the second signal) and / or receive updated system information.

[0287] It is understood that the network element in the embodiments of this application includes hardware structures and / or software modules corresponding to the execution of each function in order to achieve the above-mentioned functions. Based on the units and algorithm steps of the various examples described in the embodiments disclosed in this application, the embodiments of this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed by hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the technical solution of the embodiments of this application.

[0288] This application embodiment can divide network elements into functional units according to the above method examples. For example, each function can be divided into its own functional unit, or two or more functions can be integrated into one processing unit. The integrated unit can be implemented in hardware or as a software functional unit. It should be noted that the unit division in this application embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods.

[0289] Figure 28 This diagram illustrates a schematic block diagram of an information transmission device provided in an embodiment of this application. The information transmission device can be either a receiving device or a transmitting device as described above. The information transmission device 1700 can exist in software form or as a chip usable in a device. The information transmission device 1700 includes a processing unit 1702 and a communication unit 1703. Optionally, the communication unit 1703 can further be divided into a transmitting unit (not included in the diagram). Figure 28 (shown in) and receiving unit (not shown in) Figure 28 (As shown in the diagram). The transmitting unit supports the information transmission device 1700 in sending information to other network elements. The receiving unit supports the information transmission device 1700 in receiving information from other network elements.

[0290] Optionally, the information transmission device 1700 may also include a storage unit 1701 for storing the program code and data of the information transmission device 1700, and the data may include, but is not limited to, raw data or intermediate data.

[0291] If the information transmission device 1700 is a terminal device, the processing unit 1702 can be used to support the terminal device in processing uplink signals / information / downlink signals / downlink information, determining the validity of TA, and / or other processes used in the scheme described herein. The communication unit 1703 is used to support communication between the terminal device and other network elements (such as the aforementioned network devices), for example, supporting the terminal device in performing... Figure 22B S201b, S202, etc.

[0292] If the information transmission device 1700 is a network device, the processing unit 1702 can be used to support the network device in processing uplink signals / information / downlink signals / downlink information, and / or other processes used in the scheme described herein. The communication unit 1703 is used to support communication between the network device and other network elements (such as the aforementioned terminal devices), for example, supporting the transmitting device in performing... Figure 22B S201b, S202, etc.

[0293] In one possible approach, the processing unit 1702 may be a controller or Figure 4 The processors 201 and / or 207 shown may be, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processing unit (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. They can implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. The processor may also be a combination that implements computational functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0294] In one possible configuration, the communication unit 1703 could be Figure 4 The communication interface 204 shown can also be a transceiver circuit, transceiver, radio frequency device, etc.

[0295] In one possible approach, storage unit 1701 can be Figure 4 The memory 203 shown.

[0296] This application also provides a communication device, including one or more processors and one or more memories. The one or more memories are coupled to the one or more processors, and the one or more memories are used to store computer program code, including computer instructions. When the one or more processors execute the computer instructions, the communication device performs the aforementioned method steps to implement the information transmission method described in the above embodiments.

[0297] This application also provides a chip system, including: a processor coupled to a memory, the memory being used to store programs or instructions, wherein when the program or instructions are executed by the processor, the chip system implements the methods in any of the above method embodiments.

[0298] Optionally, the chip system may contain one or more processors. These processors can be implemented in hardware or software. When implemented in hardware, the processor can be a logic circuit, an integrated circuit, etc. When implemented in software, the processor can be a general-purpose processor, implemented by reading software code stored in memory.

[0299] Optionally, the chip system may contain one or more memories. The memory may be integrated with the processor or disposed separately from it; this application does not limit this. For example, the memory may be a non-transient processor, such as a read-only memory (ROM), which may be integrated with the processor on the same chip or disposed separately on different chips. This application does not specifically limit the type of memory or the arrangement of the memory and processor.

[0300] For example, the chip system may be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), a central processing unit (CPU), a network processor (NP), a digital signal processor (DSP), a micro controller unit (MCU), a programmable logic device (PLD), or other integrated chips.

[0301] It should be understood that each step in the above method embodiments can be completed by integrated logic circuits in the processor hardware or by instructions in software form. The method steps disclosed in the embodiments of this application can be directly manifested as being executed by a hardware processor, or being executed by a combination of hardware and software modules in the processor.

[0302] This application also provides a computer-readable storage medium storing computer instructions. When the computer instructions are executed on a communication device, the communication device performs the aforementioned method steps to implement the information transmission method described above.

[0303] This application also provides a computer program product that, when run on a computer, causes the computer to perform the aforementioned steps to implement the information transmission method described above.

[0304] In addition, embodiments of this application also provide an apparatus, which may specifically be a component or module. The apparatus may include a connected processor and a memory; wherein the memory is used to store computer execution instructions, and when the apparatus is running, the processor may execute the computer execution instructions stored in the memory to cause the apparatus to perform the information transmission methods in the above-described method embodiments.

[0305] In this application, the communication device, computer-readable storage medium, computer program product or chip provided in the embodiments are all used to execute the corresponding methods provided above. Therefore, the beneficial effects that can be achieved can be referred to the beneficial effects in the corresponding methods provided above, and will not be repeated here.

[0306] It is understood that, in order to achieve the above functions, the electronic device includes hardware and / or software modules that perform the respective functions. Based on the algorithmic steps of the examples described in conjunction with the embodiments disclosed herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is implemented in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application in conjunction with the embodiments, but such implementation should not be considered beyond the scope of this application.

[0307] This embodiment can divide the electronic device into functional modules according to the above method example. For example, each function can be divided into its own functional modules, or two or more functions can be integrated into one processing module. The integrated modules can be implemented in hardware. It should be noted that the module division in this embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods.

[0308] Through the above description of the embodiments, those skilled in the art will clearly understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device, and unit described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0309] In the several embodiments provided in this application, it should be understood that the disclosed methods can be implemented in other ways. For example, the terminal device embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection of modules or units may be electrical, mechanical, or other forms.

[0310] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0311] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0312] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program instructions, such as flash memory, portable hard disk, read-only memory, random access memory, magnetic disk, or optical disk.

[0313] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An information transmission method, characterized in that, The method is applied to a terminal device, and the method includes: During a first time period, a synchronization signal block (SSB) is received on the resource corresponding to the first signal and / or an update indication of system information is received on the resource corresponding to the control resource set CORESET#0, wherein the update indication is used to indicate whether the system information has been updated; the first signal includes the SSB. During the second time period, small packet data transmission SDT service is transmitted on the first portion of bandwidth BWP; the second time period does not overlap with the first time period. Wherein, the first portion of bandwidth BWP does not include the resources of the SSB and / or the resources of the CORESET#0.

2. The method according to claim 1, characterized in that, The configuration parameters for the first time period are predefined, or the configuration parameters for the first time period are determined according to preset rules, or the configuration parameters for the first time period are configured by the network device.

3. The method according to claim 1 or 2, characterized in that, The configuration parameters for the first time period include at least two of the following: start time, length, end time, and period.

4. The method according to claim 3, characterized in that, The configuration parameters for the first time period are determined according to preset rules, and the start time of the first time period is determined based on one or more of the following information: The time unit in which the update indication is located, the start time of the radio frame in which the update indication is located, the time unit in which the SSB is located, and the radio frequency tuning time.

5. The method according to claim 3, characterized in that, The length of the first time period is related to any one or more of the following: radio frequency tuning time, duration of the SSB, duration of SSB detection, duration of downlink signal, processing duration of downlink signal, duration of update indication, processing duration of update indication, duration of system information, processing duration of system information, whether the system information has been updated, update time of system information, update cycle of system information, paging cycle, duration of paging opportunity, and time domain resources of available paging opportunities corresponding to the SSB.

6. The method according to claim 3, characterized in that, The configuration parameters for the first time period are determined according to preset rules, and the period of the first time period is determined based on any of the following information: paging period, discontinuous reception period, extended discontinuous reception period, system information update period, and extended discontinuous reception acquisition period.

7. The method according to claim 1 or 2, characterized in that, The first portion of bandwidth (BWP) includes one or more of the following resources: independent initial downlink portion bandwidth (BWP) and independent initial uplink portion bandwidth (BWP).

8. The method according to claim 1 or 2, characterized in that, The SSB is used to determine the effectiveness of the timing advance TA.

9. An information transmission method, characterized in that, The method is applied to a network device, and the method includes: During the first time period, an update indication of system information is sent on the resource corresponding to the synchronization signal block SSB and / or on the resource corresponding to the control resource set CORESET#0, wherein the update indication is used to indicate whether the system information has been updated; During the second time period, small packet data transmission SDT service is transmitted on the first portion of bandwidth BWP; the second time period does not overlap with the first time period. Wherein, the first portion of bandwidth BWP does not include the resources of the SSB and / or the resources of the CORESET#0.

10. The method according to claim 9, characterized in that, The configuration parameters for the first time period are predefined, or the configuration parameters for the first time period are determined according to preset rules, or the configuration parameters for the first time period are configured by the network device.

11. The method according to claim 9 or 10, characterized in that, The configuration parameters for the first time period include at least two of the following: start time, length, end time, and period.

12. The method according to claim 11, characterized in that, The configuration parameters for the first time period are determined according to preset rules, and the start time of the first time period is determined based on one or more of the following information: The time unit in which the update indication is located, the start time of the radio frame in which the update indication is located, the time unit in which the SSB is located, and the radio frequency tuning time.

13. The method according to claim 11, characterized in that, The length of the first time period is related to any one or more of the following: radio frequency tuning time, duration of the SSB, duration of SSB detection, duration of downlink signal, processing duration of downlink signal, duration of update indication, processing duration of update indication, duration of system information, processing duration of system information, whether the system information has been updated, update time of system information, update cycle of system information, paging cycle, duration of paging opportunity, and time domain resources of available paging opportunities corresponding to the SSB.

14. The method according to claim 11, characterized in that, The configuration parameters for the first time period are determined according to preset rules, and the period of the first time period is determined based on any of the following information: paging period, discontinuous reception period, extended discontinuous reception period, system information update period, and extended discontinuous reception acquisition period.

15. The method according to claim 9 or 10, characterized in that, The first portion of bandwidth (BWP) includes one or more of the following resources: independent initial downlink portion bandwidth (BWP) and independent initial uplink portion bandwidth (BWP).

16. The method according to claim 9 or 10, characterized in that, The SSB is used to determine the effectiveness of the timing advance TA.

17. An information transmission device, characterized in that, Includes memory, processor, and transceiver, wherein: The memory is used to store computer instructions; The transceiver is used to receive and send information; The processor, coupled to the memory, is configured to invoke computer instructions in the memory to perform the method as described in any one of claims 1-16 via the transceiver.

18. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when invoked by the computer, perform the method as described in any one of claims 1-16.

19. A computer program product, characterized in that, It includes instructions that, when executed on a computer, cause the method as described in any one of claims 1-16.

20. A chip, characterized in that, The chip is coupled to a memory for reading and executing program instructions stored in the memory to implement the method as described in any one of claims 1-16.

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