Information transmission method and apparatus

Abstract

The present application relates to the technical field of wireless communications, and provides an information transmission method and apparatus, so as to improve SSB measurement efficiency. In the method, a first apparatus receives first information, the first information indicating first list information, the first list information comprising a number N of pieces of SMTC list information, and the first SMTC list information in the N pieces of SMTC list information comprising one or more offset values. The N pieces of SMCC list information correspond to N SSB periods. On the basis of some or all of the N pieces of SMTC list information, the first apparatus executes SSB measurement. Some or all of the N pieces of SMTC list information are determined on the basis of the N SSB periods. Based on the described solution, the first apparatus, on the basis of the SSB periodicity corresponding to the SMTC list information, determines SMTC list information used. Even if different SSB periodicities are configured for multiple cells at one frequency, the first apparatus can complete SSB measurement, thereby improving measurement efficiency.

Description

An information transmission method and apparatus

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202411598592.1, filed on November 8, 2024, entitled "An Information Transmission Method and Apparatus", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of wireless communication technology, and in particular to an information transmission method and apparatus. Background Technology

[0004] New radio (NR) introduces the concept of SSB-based measurement timing configuration (SMTC). SMTC can be understood as a time window configured by the base station for a terminal to measure the synchronization signal and physical broadcast channel block (SSB). The terminal only needs to perform SSB measurements within this time window, and does not need to perform SSB measurements outside the time window.

[0005] SMTC configuration is frequency-level configuration. The base station configures a list of SMTCs for each frequency point, with a maximum of four SMTCs. These can include one baseline SMTC and three other SMTCs. The other three SMTCs correspond to a given set of cell identifiers and offset parameters, using the period and duration indicated by the baseline SMTC. Therefore, all SMTCs included in each frequency point can only correspond to the same period and duration, i.e., the period and duration indicated in the baseline SMTC.

[0006] The above-mentioned SMTC configuration method cannot support SSB measurement when multiple cells on a single frequency point are configured with different SSB cycles. Summary of the Invention

[0007] This application provides an information transmission method and apparatus to improve SSB measurement efficiency.

[0008] Firstly, an information transmission method is provided, which can be executed by a first device. Unless otherwise specified, "first device" in this application can refer to a terminal device, a component within the terminal device (e.g., a processor, chip, or chip system), or a logic module or software capable of implementing all or part of the terminal device's functions. In this method, the first device receives first information, which indicates first list information. The first list information includes N SMTC (Measurement Timing Configuration) list information based on SSB (Service-Side Bus) settings. The first SMTC list information includes one or more bias values, and the first SMTC information list is one of the N SMTC list information, where N is a positive integer. The N SMTC list information corresponds to N SSB cycles. The first device performs SSB measurement based on all or part of the N SMTC list information. The N SMTC list information is determined based on the N SSB cycles.

[0009] Based on the above scheme, the first device can determine the SMTC list information used when performing SSB measurement according to the SSB period corresponding to the SMTC list information. Even when multiple cells at one frequency point are configured with different SSB periods, the first device can still complete the SSB measurement, which can improve the measurement efficiency.

[0010] In one possible implementation, the first SMTC list information further includes a period value and a duration. For example, the SSB period corresponding to the first SMTC list information can be determined based on a period value included in the first SMTC list information. Based on the above scheme, the network side can configure multiple SMTC list information for the first device, each SMTC list information may include a period value, a duration, and one or more bias values, so that the first device can determine the SMTC list information used when performing SSB measurements.

[0011] In one possible implementation, the first information further indicates second list information, which includes N baseline SMTC configuration information. The first baseline SMTC configuration information includes one or more of period values, durations, and bias values. The first baseline SMTC configuration information is one of the N baseline SMTC configuration information. The first list information and the second list information correspond one-to-one with the order of the N SMTC list information and the order of the N baseline SMTC configuration information. For example, the first SMTC list information corresponds to the first baseline SMTC configuration information. The SSB period corresponding to the first SMTC list information can be determined based on the period values ​​included in the first baseline SMTC configuration information.

[0012] Based on the above scheme, the first device can determine the period value and duration corresponding to the SMTC list information according to the baseline SMTC configuration information, so that the first device can determine the SMTC list information used when performing SSB measurement.

[0013] In one possible implementation, the first device selects all or part of N SMTC list information based on the SSB cycle supported by the first device, and performs SSB measurement. Based on the above scheme, the first device can select an SMTC list that matches the SSB cycle supported by the first device and the SSB cycle corresponding to the SMTC list information to perform SSB measurement.

[0014] In one possible implementation, the first device selects SMTC list information from N SMTC list information whose corresponding SSB period is less than or equal to the maximum SSB period supported by the first device.

[0015] Based on the above scheme, the first device can select SMTC list information with an SSB period less than or equal to the maximum SSB period supported by the first device to perform SSB measurement. Since the maximum SSB period supported by the first device is greater than the SSB period corresponding to the SMTC list information, the first device can receive the SSB.

[0016] Secondly, an information transmission method is provided, which can be executed by a first device. Unless otherwise specified, "first device" in this application can refer to a terminal device, a component within the terminal device (e.g., a processor, chip, or chip system), or a logic module or software capable of implementing all or part of the terminal device's functions. In this method, the first device receives second information, which indicates at least one cell status information element. Each cell status information element corresponds to one SSB cycle, and the first cell status information element is used to determine whether a first cell is in a prohibited state. The first cell status information element is one of at least one cell status information elements. The first device determines the state of the first cell based on the SSB cycles supported by the first device and the first cell status information element.

[0017] Based on the above scheme, since the cell state differs for different first devices with different capabilities, this scheme enables first devices supporting different SSB cycles to determine whether a cell is in a prohibited state based on the SSB cycle corresponding to the cell state information cell, achieving more efficient access control.

[0018] In one possible implementation, if the SSB period supported by the first device is greater than or equal to the SSB period corresponding to the first cell state information element, the first cell state information element is ignored. If the SSB period supported by the first device is less than the SSB period corresponding to the first cell state information element, and the first cell state information element is set to missing or disabled, the first cell is determined to be in a disabled state.

[0019] In one possible implementation, if the SSB period supported by the first device is less than or equal to the SSB period corresponding to the first cell state information element, the first cell state information element is ignored. If the SSB period supported by the first device is greater than the SSB period corresponding to the first cell state information element, and the first cell state information element is set to missing or disabled, the first cell is determined to be in a disabled state.

[0020] Based on the above scheme, the first device can determine whether to evaluate or ignore the first cell state information element according to the supported SSB period and the SSB period corresponding to the first cell state information element, thereby enabling the first device to support different SSB periods to evaluate different cell state information elements respectively, so that the cell state is different for the first device with different capabilities.

[0021] Thirdly, an information transmission method is provided, which can be executed by a first device. Unless otherwise specified, "first device" in this application can refer to a terminal device, a component within the terminal device (e.g., a processor, chip, or chip system), or a logic module or software capable of implementing all or part of the terminal device's functions. In this method, the first device receives a second cell status information element and the SSB cycle of a first cell. The second cell status information element is used by the first device, supporting downlink coverage enhancement functions for non-terrestrial networks, to assess whether the first cell is in a prohibited state. When the first cell is assessed as not prohibited based on the second cell status information element, the first device determines the state of the first cell based on the SSB cycles supported by the first device and the SSB cycle of the first cell.

[0022] Based on the above scheme, the evaluation method of the second cell state information element introduced to support the NTN downlink coverage enhancement terminal to evaluate the cell state is clarified. The first device can further evaluate the cell state based on the supported SSB period and the SSB period of the cell.

[0023] In one possible implementation, the first cell is determined to be in a prohibited state when the SSB cycle supported by the first device is less than the SSB cycle of the first cell. Alternatively, the first cell is determined to be in a non-prohibited state when the SSB cycle supported by the first device is greater than or equal to the SSB cycle of the first cell.

[0024] Based on the above scheme, when the SSB period supported by the first device is less than the SSB period of the first cell, the first device cannot receive the SSB period of the first cell, determines that the first cell is in a prohibited state, and the first device will not select the first cell.

[0025] Fourthly, an information transmission method is provided, which can be executed by a second device. Unless otherwise specified, the "second device" in this application can refer to a network device, a component within the network device (e.g., a processor, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the network device. In this method, the second device sends first information, which indicates first list information. The first list information includes N SMTC list information based on SSB (Site-Side Measurement Timing Configuration). The first SMTC list information includes one or more bias values, and the first SMTC information list is one of the N SMTC list information, where N is a positive integer. The N SMTC list information correspond to N SSB cycles. The N SSB cycles are used to determine the SMTC list information used to perform SSB measurements. The second device then transmits the SSB.

[0026] In one possible implementation, the first SMTC list information also includes a period value and a duration.

[0027] In one possible implementation, the first information further indicates second list information, which includes N baseline SMTC configuration information. The first baseline SMTC configuration information includes one or more of the following: period value, duration, and bias. The first baseline SMTC configuration information is one of the N baseline SMTC configuration information, and the first list information and the second list information correspond one-to-one with the order of the N SMTC list information and the order of the N baseline SMTC configuration information.

[0028] Fifthly, an information transmission method is provided, which can be executed by a second device. Unless otherwise specified, the "second device" in this application can refer to a network device, a component within the network device (e.g., a processor, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the network device. In this method, the second device sends second information indicating at least one cell status information element, each cell status information element corresponding to one SSB cycle. A first cell status information element is used to determine whether a first cell is in a prohibited state, and the first cell status information element is one of the at least one cell status information elements.

[0029] Sixthly, an information transmission method is provided, which can be executed by a second device. Unless otherwise specified, the "second device" in this application can refer to a network device, a component within the network device (e.g., a processor, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the network device. In this method, the second device transmits a second cell status information element and the SSB period of a first cell. The second cell status information element is used by the first device, supporting downlink coverage enhancement functions for non-terrestrial networks, to assess whether the first cell is in a prohibited state. The second cell status information element and the SSB period of the first cell are used by the first device to determine the state of the first cell.

[0030] In a seventh aspect, a communication device is provided, including a processing unit and a transceiver unit.

[0031] The transceiver unit is used to receive first information, which indicates first list information. The first list information includes N SMTC (Measurement Timing Control) list information based on SSB (Service Subsystem for Buses). The first SMTC list information includes one or more bias values, and the first SMTC list is one of the N SMTC list information, where N is a positive integer. The N SMTC list information corresponds to N SSB cycles. The processing unit is used to perform SSB measurements based on all or part of the N SMTC list information. All or part of the N SMTC list information is determined based on the N SSB cycles.

[0032] In one possible implementation, the first SMTC list information also includes a period value and a duration.

[0033] In one possible implementation, the first information also indicates the second list information, which includes N baseline SMTC configuration information. The first baseline SMTC configuration information includes one or more of period values, durations, and bias values. The first baseline SMTC configuration information is one of the N baseline SMTC configuration information. The first list information and the second list information correspond one-to-one with the order of the N SMTC list information and the order of the N baseline SMTC configuration information.

[0034] In one possible implementation, the processing unit is specifically configured to select all or part of the N SMTC list information according to the SSB cycle supported by the first device, and perform SSB measurement.

[0035] In one possible implementation, the processing unit is specifically used to select SMTC list information from N SMTC list information whose corresponding SSB period is less than or equal to the maximum SSB period supported by the first device.

[0036] Eighthly, a communication device is provided, including a processing unit and a transceiver unit.

[0037] The transceiver unit is configured to receive second information, which indicates at least one cell status information element, each of which corresponds to one SSB cycle. A first cell status information element is used to determine whether a first cell is in a prohibited state, and this first cell status information element is one of the at least one cell status information elements. The processing unit is configured to determine the state of the first cell based on the SSB cycles supported by the first device and the first cell status information element.

[0038] In one possible implementation, the processing unit is specifically used for:

[0039] If the SSB period supported by the first device is greater than or equal to the SSB period corresponding to the first cell state information element, the first cell state information element is ignored. If the SSB period supported by the first device is less than the SSB period corresponding to the first cell state information element, and the first cell state information element is set to missing or disabled, the first cell is determined to be in a disabled state.

[0040] In one possible implementation, the processing unit is specifically used for:

[0041] If the SSB period supported by the first device is less than or equal to the SSB period corresponding to the first cell status information element, the first cell status information element is ignored. If the SSB period supported by the first device is greater than the SSB period corresponding to the first cell status information element, and the first cell status information element is set to missing or disabled, the first cell is determined to be in a disabled state.

[0042] Ninthly, a communication device is provided, including a processing unit and a transceiver unit.

[0043] The transceiver unit is used to receive a second cell status information element and the SSB cycle of the first cell. The second cell status information element is used by the first device supporting downlink coverage enhancement function of non-terrestrial network to evaluate whether the first cell is in a prohibited state. The processing unit is used to determine the state of the first cell based on the SSB cycle supported by the first device and the SSB cycle of the first cell when the first cell is evaluated as not in a prohibited state based on the second cell status information element.

[0044] In one possible implementation, the processing unit is specifically used for:

[0045] When the SSB cycle supported by the first device is less than the SSB cycle of the first cell, the first cell is determined to be in a prohibited state. Alternatively, when the SSB cycle supported by the first device is greater than or equal to the SSB cycle of the first cell, the first cell is determined to be in a non-prohibited state.

[0046] In a tenth aspect, a communication device is provided, including a processing unit and a transceiver unit.

[0047] The processing unit generates first information. This first information indicates first list information, which includes N measurement timing configuration (SMTC) list information based on synchronization signals and physical broadcast channel blocks (SSBs). The first SMTC list information includes one or more bias values, and the first SMTC information list is one of the N SMTC list information, where N is a positive integer. The N SMTC list information correspond to N SSB cycles. The N SSB cycles are used to determine the SMTC list information used to perform SSB measurements. The transceiver unit transmits the first information. The transceiver unit also transmits SSBs.

[0048] In one possible implementation, the first SMTC list information also includes a period value and a duration.

[0049] In one possible implementation, the first information also indicates the second list information, which includes N baseline SMTC configuration information. The first baseline SMTC configuration information includes one or more of the period value, duration, and bias. The first baseline SMTC configuration information is one of the N baseline SMTC configuration information. The first list information and the second list information correspond one-to-one with the order of the N SMTC list information and the order of the N baseline SMTC configuration information.

[0050] Eleventhly, a communication device is provided, including a processing unit and a transceiver unit.

[0051] A processing unit is used to generate second information. The second information indicates at least one cell status cell, and each cell status information in the at least one cell status cell corresponds to one SSB period. A first cell status cell is used to determine whether a first cell is in a prohibited state, and the first cell status cell is one of the at least one cell status cells. A transceiver unit is used to transmit the second information.

[0052] In a twelfth aspect, a communication device is provided, including a processing unit and a transceiver unit.

[0053] The processing unit generates a second cell status element and the SSB period of the first cell. The second cell status element is used by the first device supporting downlink coverage enhancement functions in non-terrestrial networks to assess whether the first cell is in a prohibited state. The second cell status element and the SSB period of the first cell are used by the first device to determine the state of the first cell. The transceiver unit transmits the second cell status element and the SSB period of the first cell.

[0054] In a thirteenth aspect, a communication device is provided for implementing the various methods described above. This communication device may be a first device according to the first to third aspects described above. Alternatively, the communication device may be a second device according to the fourth to sixth aspects described above. The communication device includes modules, units, or means corresponding to the methods described above, which may be implemented in hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the functions described above.

[0055] In a fourteenth aspect, a communication device is provided, comprising: a processor and a communication interface; the communication interface being used to communicate with a module outside the communication device; the processor being used to execute a computer program or instructions to cause the method described in any of the preceding aspects to be performed. The communication device may be a first device according to the first to third aspects described above. Alternatively, the communication device may be a second device according to the fourth to sixth aspects described above.

[0056] In a fifteenth aspect, a communication device is provided, comprising: at least one processor; said processor being configured to execute a computer program or instructions stored in a memory to implement the method described in any of the preceding aspects. The memory may be coupled to the processor, or may be independent of the processor. The communication device may be a first device according to the first to third aspects described above. Alternatively, the communication device may be a second device according to the fourth to sixth aspects described above.

[0057] In a sixteenth aspect, this application provides a communication system that may include a first means for performing the method described in the first aspect and a second means for performing the method described in the fourth aspect.

[0058] In a seventeenth aspect, this application provides a communication system that may include a first device for performing the method described in the second aspect and a second device for performing the method described in the fifth aspect.

[0059] In an eighteenth aspect, this application provides a communication system that may include a first means for performing the method described in the third aspect and a second means for performing the method described in the sixth aspect.

[0060] In a nineteenth aspect, this application provides a computer-readable storage medium storing computer-readable instructions that, when read and executed by a computer, cause the computer to perform a method in any possible implementation of any of the first to sixth aspects described above.

[0061] In a twentieth aspect, this application provides a computer program product that, when read and executed by a computer, causes the computer to perform a method in any possible implementation of any of the first to sixth aspects described above.

[0062] In a twentieth aspect, this application provides a chip for reading a computer program stored in a memory to execute a method in any possible implementation of any of the first to sixth aspects described above.

[0063] It is understandable that the technical effects of aspects four through twenty-one can be referenced from the technical effects of aspects one through three, and will not be elaborated here. Attached Figure Description

[0064] Figure 1 is a schematic diagram of a communication system provided in an embodiment of this application;

[0065] Figure 2A is a schematic diagram of an O-RAN architecture provided in an embodiment of this application;

[0066] Figure 2B is a schematic diagram of an NTN architecture provided in an embodiment of this application;

[0067] Figure 3 is an exemplary flowchart of an information transmission method provided in an embodiment of this application;

[0068] Figure 4 is an exemplary flowchart of another information transmission method provided in an embodiment of this application;

[0069] Figure 5 is an exemplary flowchart of another information transmission method provided in an embodiment of this application;

[0070] Figure 6 is a schematic diagram of a communication device provided in an embodiment of this application;

[0071] Figure 7 is a schematic diagram of another communication device provided in an embodiment of this application;

[0072] Figure 8 is a schematic diagram of another communication device provided in an embodiment of this application;

[0073] Figure 9 is a schematic diagram of another communication device provided in an embodiment of this application. Detailed Implementation

[0074] The technical solutions of this application can be applied to various communication systems, such as: Global System for Mobile Communications (GSM), Enhanced Data Rate for GSM Evolution (EDGE), Wideband Code Division Multiple Access (WCDMA), Time Division-Synchronization Code Division Multiple Access (TD-SCDMA), Long Term Evolution (LTE), Worldwide Interoperability for Microwave Access (WiMAX), and 5th generation (5G) mobile communication systems, such as New Radio (NR) systems. The technical solutions provided in this application can also be applied to future communication systems, such as 6th generation (6G) mobile communication systems. Communication systems can also be Bluetooth communication systems, Wireless Local Area Network (WLAN) / Wireless WiFi communication systems, Narrow Band Internet of Things (NB-IoT) communication systems, etc. The technical solutions of this application embodiment can also be applied to satellite communication systems, wherein the satellite communication system can be integrated with the above-mentioned communication system.

[0075] To facilitate understanding of the embodiments of this application, the application scenario used in this application will be described using the communication system architecture shown in FIG1 as an example. As shown in FIG1, the communication system includes a network device 101 and a terminal device 102. The communication device provided in the embodiments of this application can be applied to the network device 101 or to the terminal device 102. It is understood that FIG1 only shows one possible communication system architecture that can be applied to the embodiments of this application, and in other possible scenarios, the communication system architecture may also include other devices.

[0076] 1. Terminal equipment 102

[0077] A terminal device is a device with specific wireless transceiver capabilities. Terminal devices can also be called terminals, user equipment (UE), mobile stations, mobile terminals, etc. Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), the Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grids, smart homes, smart offices, smart wearables, intelligent transportation, smart cities, etc. Terminals can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, etc. The embodiments of this application do not limit the device form of the terminal.

[0078] 2. Network equipment 101

[0079] The devices included (or deployed) in the access network can be called network devices or access network devices, which are used to enable wireless access for terminals.

[0080] (1) The solutions in this application embodiment can be applied to terrestrial networks (TN), such as terrestrial cellular networks related to the 3rd Generation Partnership Project (3GPP). For example, fourth-generation (4G) communication systems, such as long-term evolution (LTE) systems, or fifth-generation (5G) communication systems, such as new radio (NR) systems. Furthermore, the solutions in this application embodiment can also be applied to open RAN (O-RAN or ORAN), cloud radio access networks (CRAN), or wireless fidelity (WiFi) systems, etc. Specifically, the access network equipment satisfies the following description:

[0081] In one possible implementation, the network device can be a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a next-generation NodeB (gNB), a base station in a future mobile communication system, or an access node in a WiFi system. The network device can be a macro base station, a micro base station or indoor station, a relay node or donor node, or a radio controller in a CRAN scenario. Optionally, the network device can also be a server, wearable device, vehicle, or in-vehicle equipment. For example, the network device in vehicle-to-everything (V2X) technology can be a roadside unit (RSU).

[0082] All or part of the functions of the network device in this application embodiment can be implemented by software functions running on hardware, or by virtualization functions instantiated on a platform (e.g., a cloud platform). The network device in this application can also be a logical node, logical module, or software capable of implementing all or part of the functions of an access network device.

[0083] In another possible implementation, the network equipment may include multiple radio access network (RAN) nodes, each implementing a portion of the base station's functions. For example, the RAN node may be a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. The CU and DU may be separate entities or included in the same network element, such as a baseband unit (BBU). The RU may be included in radio equipment or radio units, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH).

[0084] It is understood that CU (or CU-CP and CU-UP), DU, or RU may have different names in different systems, but those skilled in the art will understand their meaning. For example, in an ORAN system, CU can also be called open-CU (open-CU, O-CU), DU can also be called open-DU (open-DU, O-DU), CU-CP can also be called open-CU-CP (open-CU-CP, O-CU-CP), CU-UP can also be called open-CU-UP (open-CU-UP, O-CU-UP), and RU can also be called open-RU (open-RU, O-RU). For ease of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples. Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software modules and hardware modules.

[0085] Referring to Figure 2A, a schematic diagram of an O-RAN architecture is shown. The correspondence between the ORAN access network equipment and its implementable protocol layer functions can be found in Table 1.

[0086] Table 1: An example of an ORAN access network and its achievable protocol layer functions.

[0087] (2) The solutions in this application can be applied to non-terrestrial networks (NTNs), such as the 6th generation (6G) communication system. Specifically:

[0088] As shown in Figure 2B, network device 101 includes satellite 1210 and ground station 1220. Optionally, the ground station can also be called a gateway station (GW). The link between satellite 1210 and terminal device 102 is called the user link, and the link between satellite 1210 and ground station 1220 is called the feeder link. Satellites 1210 can communicate with each other via inter-satellite links. The satellite's operating modes include transparent and regenerative.

[0089] When the satellite operates in transparent transmission mode, it has signal relay capabilities, and the ground station possesses all or some of the functions of a base station; the ground station can be considered a base station. It is understood that a ground station can be a single device (e.g., a macro base station or a micro base station), or it can consist of multiple RAN nodes (e.g., CU and DU) implementing the corresponding functions, as detailed in the aforementioned description of the terrestrial network. Alternatively,

[0090] When a satellite operates in regenerative mode, it has the ability to process digital signals and possesses all or some of the functions of a base station; thus, the satellite can be considered a base station. Further, regenerative mode can be subdivided into two scenarios: all base station functions are deployed on the satellite (referred to as full base station functions (e.g., CU and DU) on satellite); or, some base station functions are deployed on the satellite (referred to as partial base station functions (e.g., DU) on satellite), with the remaining functions (e.g., CU) implemented at a ground station.

[0091] The following explanation uses network device 101 as an example of a base station.

[0092] NR introduces beam scanning to cover the entire cell. This means the base station can transmit a beam direction at a given moment, and by transmitting different beams at multiple times, it covers different defense lines. These beams are called SSB beams. When a terminal moves, it continuously searches and measures the cell based on the SSB, selecting the appropriate SSB beam to achieve initial access and mobility management. The SSB period can be 5ms, 10ms, 20ms, 40ms, 80ms, or 160ms, and this period is indicated in System Information Block (SIB) 1. However, during the initial cell search, the terminal has not yet received SIB 1, so it defaults to a 20ms period for SSB searching. This allows the terminal to know how long to stay at each frequency point before concluding that the SSB does not exist, and then move to the next frequency point for searching. Since the terminal searches according to the 20ms defined by the 3GPP protocol, if the SSB period of a cell is greater than 20ms, then this part of the cell is very likely not to be found by the terminal. However, if the terminal increases the duration of the search, it will affect the access latency. Therefore, the SSB period of the cell is usually recommended to be 20ms.

[0093] To obtain the most accurate SSB measurement results, it is necessary to measure all SSBs in the cell. However, SSBs are not transmitted at all times within a scan cycle. If the terminal searches for and measures SSBs at all times, it will result in significant power waste. To effectively indicate the time window for terminal SSB measurement and reduce unnecessary measurement power consumption, NR introduced the concept of SMTC. SMTC can be understood as a time window configured by the base station for the terminal to measure SSBs. The terminal only needs to perform SSB measurements within this time window, and does not need to perform SSB measurements outside the time window.

[0094] SMTC configuration is frequency-level configuration. The base station configures a list of SMTCs for each frequency point, with a maximum of four SMTCs, including one baseline SMTC and three other SMTCs. The other three SMTCs correspond to a given set of cell identifiers and offset parameters, using the period and duration indicated by the baseline SMTC. Therefore, all SMTCs included in each frequency point can only correspond to the same period and duration, i.e., the period and duration indicated in the baseline SMTC. The offset parameters corresponding to the other three SMTCs can be understood as the time-domain offset from the baseline SMTC. The terms "other three SMTCs" and "four SMTCs" can be understood as N and N+1, without being limited to specific values.

[0095] For example, the base station configures a baseline SMTC and an SSB-MTC4list for each frequency point. The SSB-MTC4list is used to indicate the other three SMTCs besides the baseline SMTC. The SSB-MTC4list includes multiple SSB-MTC4s. Each SSB-MTC4 corresponds to a physical cell identifier (PCI) list and an offset. Based on the offset parameter and the periodicity and duration of the baseline SMTC, the terminal obtains the complete SMTC configuration corresponding to the PCI list, including the SMTC offset parameter, SMTC period, and SMTC duration.

[0096] The above-mentioned SMTC configuration method cannot support SSB measurement when multiple cells on a single frequency point are configured with different SSB cycles.

[0097] Therefore, embodiments of this application provide an information transmission method. In this method, a terminal can receive first information, which can indicate first list information. The first list information can include N SMTC list information entries. The first SMTC list information entry among the N SMTC list information entries can include one or more offset values. The aforementioned N SMTC list information entries can correspond to N SSB cycles. For example, the SMTC list information entries can correspond one-to-one with the SSB cycles. The terminal can perform SSB measurements based on some or all of the N SMTC list information entries.

[0098] Based on the above scheme, the terminal can determine the SMTC list information used when performing SSB measurement based on the SSB cycle. When multiple cells on a frequency point are configured with different SSB cycles, the terminal can complete the SSB measurement, minimize measurement actions, and improve measurement efficiency.

[0099] The following describes in detail an information transmission method provided by an embodiment of this application with reference to FIG3. Referring to FIG3, an exemplary flowchart of an information transmission method provided by an embodiment of this application is shown, which may include the following steps:

[0100] S301, the base station sends the first information.

[0101] Accordingly, the terminal receives the first information.

[0102] The first information can indicate the first list information. This first list information can include N SMTC list information entries, where N is a positive integer. In one possible scenario, the N SMTC list information entries can correspond to N SSB cycles. For example, there is a one-to-one correspondence between the N SMTC list information entries and the N SSB cycles, meaning each SMTC list information entry corresponds to one SSB cycle. Some of the SMTC list information entries may correspond to the same SSB cycle, or all of the N SSB cycles corresponding to the N SMTC list information entries may be different.

[0103] In the embodiment shown in Figure 3, the base station can configure the corresponding SMTC list information for each SSB period. The following describes the methods for configuring the SMTC list information by the base station through Method 1 and Method 2.

[0104] Method 1: One frequency point corresponds to N SMTC list information (SSB-MTC4List).

[0105] In Method 1, the first information in S201 can indicate first list information, which includes N SMTC list information corresponding to a frequency point. Each SMTC list information in the N SMTC lists includes one or more offset values ​​(or offset parameters, offsets). Optionally, each SMTC list information in the N SMTC lists may also include at least one of a period value (SMTC period) and a duration (SMTC duration). The SSB period corresponding to the SMTC list information is determined by the period value included in that SMTC list information. For example, the SSB period corresponding to the SMTC list information is the period value included in that SMTC list information.

[0106] For example, the first list information indicated by the first information is shown through the following configuration parameters. The first list information is SSB-WholeMTCList, which includes N SSB-WholeMTC-r19. Each SSB-WholeMTC is an SMTC list information. Each SSB-WholeMTC may include at least one of a periodicity, a duration, and an SSB-MTC4list. The SSB-MTC4list includes multiple cell lists (pci-List) and offset values ​​corresponding to the multiple cell lists.

[0107] Using the above configuration parameters, the terminal can determine N SMTC list information, and thus determine N SMTC configurations. These N SMTC configurations can correspond to N SSB cycles.

[0108] It should be noted that the above configuration parameters are only shown as examples, and those skilled in the art can use other configuration parameters to configure the N SMTC list information proposed in the embodiments of this application.

[0109] Optionally, when the SMTC list information does not contain a period value, the SSB period corresponding to the SMTC list information can be determined based on other methods. For example, the correspondence between the format of the SMTC list information and the corresponding SSB period can be predefined. Another example is that the correspondence between a first identifier and the SSB period can be predefined, and the corresponding first identifier can be carried in the SMTC list information to determine the SSB period corresponding to that SMTC list information.

[0110] It should be understood that the above-described method for determining the SSB period corresponding to the SMTC list information is only illustrative, and those skilled in the art can indicate the SSB period corresponding to the SMTC list information in other ways. In the embodiments of this application, by configuring different SMTC list information for different SSB periods, it is possible to enable terminals supporting different SSB periods to perform SSB measurements.

[0111] Method 2: One frequency point corresponds to N SMTC list information and N baseline SMTC configuration information.

[0112] In method two, the first information also indicates the second list information. This second list information may include N baseline SMTC configuration information entries. In the embodiment shown in Figure 3, the first list information and the second list information correspond one-to-one. For example, the first list information and the second list information may correspond one-to-one according to the order of the N SMTC list information entries in the first list information and the order of the N baseline SMTC configuration information entries in the second list information.

[0113] In one possible implementation, the first list information includes N SMTC list information, each of which includes one or more bias values. The second list information includes N baseline SMTC configuration information, each of which may include one or more of the following: a period value (SMTC period), a duration (SMTC duration), or a bias (or bias parameter). The SSB period corresponding to the SMTC list information can be determined based on the period value included in the corresponding baseline SMTC configuration information. For example, the SSB period corresponding to the SMTC list information is the period value included in the corresponding baseline SMTC configuration information.

[0114] For example, the first list information and the second list information indicated by the first information are shown through the following configuration parameters.

[0115] For example, the configuration parameters described above illustrate the first list information and the second list information indicated by the first information. The first list information is SSB-MTCList, which includes N SSB-MTC4Lists. Each SSB-MTC4List includes multiple cell lists (PCI-Lists) and corresponding offset values. The second list information is SSBBaseMTCList, which includes N SSB-MTCs. Each SSB-MTC includes at least one of a periodicity value, an offset value (periodicityAndoffset), and a duration. The first and second list information correspond one-to-one in element order. Similarly, the N SSB-MTC4Lists and N SSB-MTCs correspond one-to-one. That is, the multiple PCI cell lists and their corresponding offset values ​​included in the i-th SSB-MTC4List correspond to the periodicity value and duration indicated by the i-th SSB-MTC, where i is an integer between 1 and N. Each SMTC list information can use the periodicity value and duration contained in its corresponding baseline SMTC configuration information.

[0116] By using the above configuration parameters, the terminal can determine N SMTC list information and N baseline SMTC configuration information, thereby determining N SMTC configurations. It should be noted that the above configuration parameters are merely illustrative; those skilled in the art can use other configuration parameters to configure the N SMTC list information and N baseline SMTC configuration information proposed in this application embodiment.

[0117] Optionally, when the baseline SMTC configuration information does not contain a period value, the SSB period corresponding to the SMTC list information can be determined based on other methods. For example, the correspondence between the format of the baseline SMTC configuration information and the corresponding SSB period can be predefined. Another example is that the correspondence between a first identifier and the SSB period can be predefined, and the corresponding first identifier can be carried in the baseline SMTC configuration information to determine the SSB period corresponding to the SMTC list information corresponding to the baseline SMTC configuration information.

[0118] It should be understood that the above-described method for determining the SSB period corresponding to the SMTC list information is only illustrative, and those skilled in the art can indicate the SSB period corresponding to the SMTC list information in other ways. In the embodiments of this application, by configuring different SMTC list information for different SSB periods, it is possible to enable terminals supporting different SSB periods to perform SSB measurements.

[0119] S302, the base station sends SSB.

[0120] Correspondingly, the terminal receives the SSB.

[0121] The terminal can determine N SMTC configurations based on the first information. The terminal can then select some or all of the N SMTC configurations to perform SSB measurements.

[0122] For example, the terminal can select the SMTC configuration based on the supported SSB period. For instance, the terminal can select an SMTC configuration from N SMTC configurations whose corresponding SSB period is less than or equal to the terminal's maximum supported SSB period. For example, if the terminal's maximum supported SSB period is 160ms, then the terminal can select an SMTC configuration with an corresponding SSB period less than or equal to 160ms for SSB measurement.

[0123] For example, if none of the N SMTC configurations has an SSB period less than or equal to the maximum SSB period supported by the terminal, the terminal can select the SMTC configuration with an SSB period closest to the maximum SSB period supported by the terminal. For instance, if the maximum SSB period supported by the terminal is 160ms, and none of the N SMTC configurations have an SSB period less than or equal to 160ms, and the minimum SSB period among the N SMTC configurations is 320ms, then the terminal can also select the SMTC configuration with an SSB period of 320ms for SSB measurement.

[0124] In the embodiment shown in Figure 3, the terminal can be in a radio resource control (RRC) idle state, or the terminal can be in an RRC connected state.

[0125] Based on the above scheme, the base station can configure SMTC settings for different SSB periods, thereby supporting SSB measurements for different cells with different SSB periods under the same frequency. Furthermore, by associating the SMTC configuration corresponding to the same SSB period with the corresponding SMTC period and SMTC duration, when the number of SMTCs supported by the terminal is limited, the mechanism for selecting the SMTC configuration by the terminal in S302 can reduce measurement actions and improve measurement efficiency.

[0126] This application also provides another information transmission method. Cell prohibition, also known as cell restriction, means that if a cell is in a prohibited state, the terminal is prohibited from camping on that cell. Terminals determine whether a cell is in a prohibited state in two ways: one is through explicit indication of a prohibited state, and the other is through the terminal's perception that the cell has entered a prohibited state. The cell can carry cell status information elements through a master indication block (MIB) or SIB1 message. The terminal can determine whether the cell status is prohibited based on these information elements. Specifically, if the terminal meets the conditions for ignoring cell status information elements, it ignores those elements, i.e., it does not evaluate them. Conversely, the terminal evaluates the cell status information elements. When a cell status information element is missing or its value is set to "barred," the terminal determines that the cell status is prohibited. When the terminal determines that a cell status is prohibited, the terminal cannot select or reselect to that cell, and even emergency calls cannot be made.

[0127] Currently, the protocol defines cell status information elements as shown in Table 2.

[0128] Table 2: An example of a cell status information cell

[0129] In Table 2, terminals that meet the ignoring conditions can ignore the corresponding cell status information elements, meaning they do not evaluate them. For example, if the terminal supports NTN, is an integrated access and backhaul (IAB)-mobile termination (MT), or a network controlled repeater (NCT)-MT, the terminal ignores the cell-barred information element. If the terminal does not support NTN, is not an IAB-MT, or is not an NCT-MT, then the terminal can evaluate the cell-barred information element. For instance, if the cell-barred information element exists and its value is "barred," the terminal considers the cell status to be "barred." Similarly, the terminal can evaluate the cell status information elements carried in the MIB or SIB1 to determine the cell status.

[0130] Currently, the protocol is discussing NTN downlink coverage enhancement features, which include dynamic power sharing between satellite beams or beam footprints; therefore, not all beams or beam footprints are activated simultaneously. Downlink coverage enhancement also includes SSB period extension, which may be extended to 160ms, 320ms, 640ms, or longer. When a terminal does not support this NTN downlink coverage enhancement feature, it can evaluate the "cellBarredNTN" cell to determine whether the cell state is disabled. The protocol aims to introduce a new cell state cell for terminals supporting NTN downlink coverage enhancement to evaluate whether the cell state is disabled. For example, this cell could be "cellBarredNTNDLCE," which the terminal can evaluate when supporting NTN downlink coverage enhancement to determine whether the cell state is disabled.

[0131] However, for terminals that support different SSB periods, such as some terminals supporting a maximum SSB period of 160ms and others supporting a maximum SSB period of 80ms, the cell state information element in the current protocol is insufficient for the terminal to determine whether the cell state is prohibited.

[0132] Therefore, embodiments of this application provide another information transmission method. In this method, a terminal can receive second information indicating at least one cell status information element. Each cell status information element in the at least one cell status information element corresponds to one SSB cycle. The at least one cell status information element, or a first cell status information element in the at least one cell status information element, is used to determine whether a first cell is in a prohibited state. The terminal can determine the state of the first cell based on the SSB cycles supported by the terminal and the first cell status information element.

[0133] Because the cell state differs for terminals with different capabilities, the above scheme enables terminals supporting different SSB cycles to determine whether a cell is in a prohibited state based on the SSB cycle corresponding to the cell state information element, achieving more efficient access control.

[0134] Referring to Figure 4, which is an exemplary flowchart of an information transmission method provided in an embodiment of this application, the method may include the following steps:

[0135] S401, the base station sends the second information.

[0136] Correspondingly, the terminal receives the second information.

[0137] For example, the second information may be MIB or SIB1. The second information may indicate at least one cell status cell, such as some or all of the cell status cells shown in Table 2.

[0138] In the embodiment shown in Figure 4, each cell status cell can correspond to one SSB period. For example, the second information can indicate that the cell-barred NTN cell is disabled, and indicate that the SSB period corresponding to the cell status cell is 40, 80, 160, 420, or 640. For example, cellBarredNTN(XX) is used as an example. Here, (XX) can indicate the period corresponding to the cell status cell, and can be one or more of 5, 10, 20, 40, 80, 160, 420, or 640.

[0139] Optionally, the second information may be directed to the same cell status cell, such as the "cellBarredNTN" cell. Since the corresponding SSB periods are different, the second information may indicate multiple cell status cells corresponding to different SSB periods. For example, the second information may indicate cellBarredNTN(40), cellBarredNTN(80), and cellBarredNTN(160) to indicate the "cellBarredNTN" cells corresponding to SSB periods 40, 80, and 160.

[0140] In one possible implementation, if the SSB period corresponding to the cell state information element is XX, then in one possible scenario, this cell state information element is only applicable to terminals that support SSB periods greater than (or equal to) XX. Terminals supporting SSB periods greater than (or equal to) XX evaluate the cell state information element to determine whether the cell is blocked. Terminals supporting SSB periods less than (or equal to) XX can ignore this information element. In this case, the ignoring condition corresponding to the cell state information element may include supporting SSB periods less than (or equal to) XX.

[0141] In another possible scenario, this cell status information element is only applicable to terminals that support SSB periods less than (or equal to) XX. Terminals supporting SSB periods less than (or equal to) XX evaluate the cell status information element to determine whether the cell is blocked, while terminals supporting SSB periods greater than (or equal to) XX ignore this information element. In this case, the ignoring condition corresponding to this cell status information element may include supporting SSB periods greater than (or equal to) XX.

[0142] It should be noted that the corresponding SSB period XX in the above example can be one or more of 5, 10, 20, 40, 80, 160, 420 or 640.

[0143] S402, the terminal determines the state of the first cell based on the supported SSB period and the first cell state information.

[0144] The first cell status information element is one of at least one cell status information element indicated by the second information. This first cell status information element can be used by the terminal to determine the status of the first cell.

[0145] In some embodiments, the terminal can determine whether to evaluate the state of the first cell based on the supported SSB cycles and the SSB cycle corresponding to at least one cell state information element. Taking the first cell state information element as an example, if the terminal needs to evaluate the first cell state information element, the terminal can determine the state of the first cell based on the value of the first cell state information element. If the terminal does not need to evaluate the first cell state information element, the terminal can ignore the first cell state information element.

[0146] For example, suppose the first cell status cell is a cell-barred NTN, with a corresponding SSB period of 80. In one possible scenario, this first cell status cell is only applicable to terminals that support an SSB period greater than (or equal to) 80. In S402, if the terminal supports NTN and the SSB period is greater than (or equal to) 80, the terminal can evaluate the "cell-barred NTN" cell. For instance, if the cell is missing or its value is "barred," the first cell is determined to be in a banned state, and the terminal will not choose to camp on the first cell. If the cell's value is "not banned," the first cell is determined to be in a non-banned state, and the terminal can choose to access the first cell. If the terminal supports NTN, but its SSB period is less than (or equal to) 80, the terminal can ignore the "cell-barred NTN" cell.

[0147] In another possible scenario, this first cell status cell is only applicable to terminals that support SSB periods less than (or equal to) 80. In S402, if the terminal supports NTN and the SSB period is less than (or equal to) 80, the terminal can evaluate the "cellBarredNTN" cell. For example, if this cell is missing or its value is prohibited, the first cell is determined to be prohibited, and the terminal will not choose to camp on the first cell. If the cell's value is not prohibited, the first cell is determined to be not prohibited, and the terminal can choose to access the first cell. If the terminal supports NTN, but its SSB period is greater than (or equal to) 80, the terminal can ignore the "cellBarredNTN" cell.

[0148] In the embodiment shown in Figure 4, the SSB period corresponding to the cell state information element can be determined by the base station according to the capabilities of different terminals, so as to enable terminals that support different SSB periods to evaluate the corresponding cell state information element and determine whether the cell is prohibited.

[0149] In some embodiments, the SSB period corresponding to the cell status information element can be the SSB period of the cell to which the cell status information element belongs. For example, the second information can carry a second cell status information element and the SSB period of the second cell. This second cell status information element can be used by a terminal supporting NTN downlink coverage enhancement function to determine the status of the second cell. For example, the second cell status information element can be "cellBarredNTNDLCE".

[0150] The following is a detailed description with reference to Figure 5, which is an exemplary flowchart of an information transmission method provided in an embodiment of this application, and may include the following steps.

[0151] S501, the base station sends the second cell status information and the second cell's SSB cycle.

[0152] Correspondingly, the terminal receives the second cell status information and the second cell's SSB cycle.

[0153] The base station can send the second cell status information and the SSB period of the second cell separately, or they can be sent together. For example, the base station can send second information, such as MIB or SIB1, which the terminal can receive. This second information may carry the second cell status information and the SSB period of the second cell.

[0154] In one example, the second cell status information element can be used to assess the status of the second cell for terminals that support NTN downlink coverage enhancement.

[0155] S502, the terminal determines the state of the second cell based on the supported SSB cycle and the SSB cycle of the second cell.

[0156] For example, if the terminal supports NTN downlink coverage enhancement, it can evaluate the second cell status information. If the second cell status information is missing or its value is disabled, the terminal determines that the second cell is disabled. If the second cell status information is not disabled, the terminal determines that the second cell is not disabled.

[0157] In S502, when the second cell is in an unbanned state, the terminal can re-determine the state of the second cell based on the supported SSB cycle and the SSB cycle of the second cell. For example, when the terminal assesses the second cell as unbanned based on the second cell state information, if the terminal's supported SSB cycle is less than (or less than or equal to) the SSB cycle of the second cell, the terminal determines the second cell to be in a banned state; if the terminal's supported SSB cycle is greater than (or greater than or equal to) the SSB cycle of the second cell, the terminal determines the first cell to be in an unbanned state.

[0158] Based on the above scheme, the evaluation method of the cell state information element introduced to support the evaluation of cell state by the NTN downlink coverage enhancement terminal is clarified. The terminal can further evaluate the cell state based on the supported SSB period and the cell's SSB period.

[0159] Based on the concept of the above embodiments, and referring to FIG6, this application provides a communication device 600, which includes a processing unit 601 and a transceiver unit 602. The device 600 can be a communication device, or it can be an apparatus applied to a communication device that supports the communication device in performing encoding and decoding methods.

[0160] The transceiver unit can also be referred to as a transceiver module, transceiver, transceiver machine, transceiver device, etc. The processing unit can also be referred to as a processor, processing board, processing unit, processing device, etc. Optionally, the device in the transceiver unit used to implement the receiving function can be considered as a receiving unit. It should be understood that the transceiver unit is used to execute the sending and receiving operations of the communication device in the above method embodiments, and the device in the transceiver unit used to implement the sending function can be considered as a sending unit; that is, the transceiver unit includes a receiving unit and a sending unit.

[0161] Furthermore, it should be noted that if the device is implemented using a chip / chip circuit, the transceiver unit can be an input / output circuit and / or a communication interface, performing input operations (corresponding to the aforementioned receiving operations) and output operations (corresponding to the aforementioned sending operations); the processing unit is an integrated processor, microprocessor, or integrated circuit.

[0162] The following provides a detailed description of how the device 600 is applied to terminals and base stations.

[0163] For example, when the device 600 is applied to a terminal, the operations performed by its various units will be described in detail.

[0164] In one optional implementation, the communication device 600 can be applied to a terminal to execute the methods performed by the terminal, specifically, for example, the methods performed by the terminal in the embodiments shown in FIG3 or FIG4.

[0165] For example, transceiver unit 602 is used to receive first information, which indicates first list information. The first list information includes N SMTC list information based on SSB (Site-Side Bus) timing configurations. The first SMTC list information includes one or more bias values, and the first SMTC information list is one of the N SMTC list information, where N is a positive integer. The N SMTC list information correspond to N SSB cycles. Processing unit 601 is used to perform SSB measurements based on all or part of the N SMTC list information. The N SMTC list information is determined based on the N SSB cycles.

[0166] For example, transceiver unit 602 is used to receive second information, which indicates at least one cell status information element, and each of the at least one cell status information element corresponds to one SSB cycle. The first cell status information element is used to determine whether the first cell is in a prohibited state, and the first cell status information element is one of the at least one cell status information elements. Processing unit 601 is used to determine the state of the first cell based on the SSB cycles supported by the first device and the first cell status information element.

[0167] For example, transceiver unit 602 is used to receive second cell status information and SSB cycle of first cell. The second cell status information is used by the first device supporting downlink coverage enhancement function of non-terrestrial network to evaluate whether the first cell is in a prohibited state. Processing unit 601 is used to determine the state of the first cell based on the SSB cycle supported by the first device and the SSB cycle of the first cell when the first cell is evaluated as not in a prohibited state based on the second cell status information.

[0168] For example, when the device 600 is applied to a base station, the operations performed by its various units will be described in detail.

[0169] In one optional implementation, the communication device 600 can be applied to a base station to execute the methods performed by the base station, specifically, for example, the methods executed by the base station in the embodiments shown in FIG3 or FIG4 above.

[0170] For example, processing unit 601 generates first information. The first information indicates first list information, which includes N measurement timing configuration (SMTC) list information based on synchronization signals and physical broadcast channel blocks (SSBs). The first SMTC list information includes one or more bias values, and the first SMTC information list is one of the N SMTC list information, where N is a positive integer. The N SMTC list information correspond to N SSB cycles. The N SSB cycles are used to determine the SMTC list information used to perform SSB measurements. Transceiver unit 602 is used to transmit the first information. Transceiver unit 602 is also used to transmit SSBs.

[0171] For example, processing unit 601 is used to generate second information. The second information indicates at least one cell status cell, and each cell status information in the at least one cell status cell corresponds to one SSB period. A first cell status cell is used to determine whether a first cell is in a prohibited state, and the first cell status cell is one of the at least one cell status cells. Transceiver unit 602 is used to transmit the second information.

[0172] For example, processing unit 601 is used to generate a second cell status information element and the SSB period of the first cell. The second cell status information element is used by the first device supporting the downlink coverage enhancement function of the non-terrestrial network to evaluate whether the first cell is in a prohibited state. The second cell status information element and the SSB period of the first cell are used by the first device to determine the state of the first cell. Transceiver unit 602 is used to transmit the second cell status information element and the SSB period of the first cell.

[0173] Based on the concept of the embodiments, as shown in FIG7, this application provides a communication device 700. The communication device 700 includes a processor 710. Optionally, the communication device 700 may further include a memory 720 for storing instructions executed by the processor 710, or storing input data required for the processor 710 to execute the instructions, or storing data generated after the processor 710 executes the instructions. The processor 710 can implement the method shown in the above method embodiments through the instructions stored in the memory 720.

[0174] Based on the concept of the embodiments, as shown in FIG8, this application provides a communication device 800, which may be a chip or a chip system. Optionally, in this application embodiment, the chip system may be composed of chips, or may include chips and other discrete devices.

[0175] The communication device 800 may include at least one processor 810 coupled to a memory. Optionally, the memory may be located within or outside the device. For example, the communication device 800 may also include at least one memory 820. The memory 820 stores computer programs, configuration information, computer programs or instructions, and / or data necessary for implementing any of the above embodiments; the processor 810 may execute the computer programs stored in the memory 820 to perform the methods in any of the above embodiments. Optionally, the memory may also be integrated with the processor.

[0176] The coupling in this embodiment is an indirect coupling or communication connection between devices, units, or modules, which can be electrical, mechanical, or other forms, used for information exchange between devices, units, or modules. The processor 810 may operate in conjunction with the memory 820. This embodiment does not limit the specific connection medium between the transceiver 830, processor 810, and memory 820.

[0177] The communication device 800 may also include a transceiver 830, through which the communication device 800 can interact with other devices. The transceiver 830 can be a circuit, a bus, a transceiver itself, or any other device capable of information interaction, also referred to as a signal transceiver unit. As shown in Figure 8, the transceiver 830 includes a transmitter 831, a receiver 832, and an antenna 833. Furthermore, when the communication device 800 is a chip-type device or circuit, the transceiver in the communication device 800 can also be an input / output circuit and / or a communication interface, capable of inputting data (or receiving data) and outputting data (or transmitting data). The processor is an integrated processor, a microprocessor, or an integrated circuit, and the processor can determine the output data based on the input data.

[0178] In one possible implementation, the communication device 800 can be applied to a communication device. Specifically, the communication device 800 can be a communication device or an apparatus capable of supporting a communication device and implementing the functions of a terminal or base station in any of the above embodiments. The memory 820 stores the necessary computer programs, computer programs or instructions and / or data for implementing the functions of the terminal or base station in any of the above embodiments. The processor 810 can execute the computer programs stored in the memory 820 to perform the methods executed by the terminal or base station in any of the above embodiments.

[0179] In the embodiments of this application, the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components, and may implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly manifested as being executed by a hardware processor, or executed by a combination of hardware and software modules within the processor.

[0180] In the embodiments of this application, the memory can be non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), or it can be volatile memory, such as random-access memory (RAM). The memory can also be 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 is not limited thereto. The memory in the embodiments of this application can also be a circuit or any other device capable of implementing storage functions, used to store computer programs, computer program or instruction and / or data.

[0181] Based on the above embodiments, referring to FIG9, this application embodiment also provides another communication device 900, including: an input / output interface 910 and a logic circuit 920; the input / output interface 910 is used to receive code instructions and transmit them to the logic circuit 920; the logic circuit 920 is used to run the code instructions to execute the method executed by the terminal or base station in any of the above embodiments.

[0182] The following is a detailed description of the operations performed by the device 900 when applied to a terminal or base station.

[0183] In one optional implementation, the communication device 900 can be applied to a terminal to execute the methods performed by the terminal, specifically, for example, the methods performed by the terminal in the embodiments shown in FIG3 or FIG4.

[0184] For example, input / output interface 910 is used to receive first information, which indicates first list information. The first list information includes N SMTC list information based on SSB measurement timing configuration. The first SMTC list information includes one or more bias values, and the first SMTC information list is one of the N SMTC list information, where N is a positive integer. The N SMTC list information corresponds to N SSB cycles. Logic circuit 920 is used to perform SSB measurement based on all or part of the N SMTC list information. All or part of the N SMTC list information is determined based on the N SSB cycles.

[0185] For example, input / output interface 910 is used to receive second information, which indicates at least one cell status cell, each of which corresponds to one SSB cycle. A first cell status cell is used to determine whether a first cell is in a prohibited state, and this first cell status cell is one of the at least one cell status cells. Logic circuit 920 is used to determine the state of the first cell based on the SSB cycles supported by the first device and the first cell status cell.

[0186] For example, input / output interface 910 is used to receive a second cell status information cell and the SSB cycle of the first cell. The second cell status information cell is used by the first device supporting downlink coverage enhancement function of non-terrestrial network to evaluate whether the first cell is in a prohibited state. Logic circuit 920 is used to determine the state of the first cell based on the SSB cycle supported by the first device and the SSB cycle of the first cell when the first cell is evaluated as not in a prohibited state based on the second cell status information cell.

[0187] Since the communication device 900 provided in this embodiment can be applied to a terminal to execute the method executed by the terminal described above, the technical effects it can achieve can be referred to the above method embodiment, and will not be repeated here.

[0188] In one optional implementation, the communication device 900 can be applied to a base station to execute the methods performed by the base station, specifically, for example, the methods performed by the base station in the embodiments shown in FIG3 or FIG4.

[0189] For example, logic circuit 920 generates first information. This first information indicates first list information, which includes N measurement timing configuration (SMTC) list information based on synchronization signals and physical broadcast channel blocks (SSBs). The first SMTC list information includes one or more bias values, and the first SMTC information list is one of the N SMTC list information, where N is a positive integer. The N SMTC list information correspond to N SSB cycles. The N SSB cycles are used to determine the SMTC list information used to perform SSB measurements. Input / output interface 910 is used to transmit the first information. Input / output interface 910 is also used to transmit SSBs.

[0190] For example, logic circuit 920 is used to generate second information. The second information indicates at least one cell status cell, and each cell status information in the at least one cell status cell corresponds to one SSB cycle. A first cell status cell is used to determine whether a first cell is in a prohibited state; the first cell status cell is one of the at least one cell status cells. Input / output interface 910 is used to send the second information.

[0191] For example, logic circuit 920 is used to generate a second cell status cell and the SSB cycle of the first cell. The second cell status cell is used by the first device supporting downlink coverage enhancement functions of non-terrestrial networks to assess whether the first cell is in a prohibited state. The second cell status cell and the SSB cycle of the first cell are used by the first device to determine the state of the first cell. Input / output interface 910 is used to transmit the second cell status cell and the SSB cycle of the first cell.

[0192] Since the communication device 900 provided in this embodiment can be applied to a base station to execute the method performed by the base station, the technical effects it can achieve can be referred to the above method embodiment, and will not be repeated here.

[0193] Based on the above embodiments, this application also provides a communication system, which includes at least one base station and at least one terminal. The technical effects obtained can be referred to the above method embodiments, and will not be repeated here.

[0194] Based on the above embodiments, this application also provides a computer-readable storage medium storing a computer program or instructions. When the instructions are executed, the method performed by the communication device in any of the above embodiments is implemented. The computer-readable storage medium may include various media capable of storing program code, such as a USB flash drive, portable hard drive, read-only memory, random access memory, magnetic disk, or optical disk.

[0195] To achieve the functions of the communication devices shown in Figures 8 and 9, this application embodiment also provides a chip, including a processor, for supporting the communication device in implementing the functions involved in the terminal or base station in the above method embodiments. In one possible design, the chip is connected to a memory or the chip includes a memory for storing necessary computer programs, instructions, and data for the terminal or base station.

[0196] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0197] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer programs or instructions. These computer programs or instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in one or more blocks of the flowchart illustrations and / or one or more blocks of the block diagrams.

[0198] These computer programs or instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means that implement the functions specified in one or more flowcharts and / or one or more block diagrams.

[0199] These computer programs or instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, such that the instructions, which execute on the computer or other programmable apparatus, provide steps for implementing the functions specified in one or more flowcharts and / or one or more block diagrams.

Claims

1. An information transmission method, characterized in that, Applied to the first device, comprising: Receive first information, the first information indicating first list information, the first list information including N measurement timing configuration (SMTC) list information based on synchronization signal and physical broadcast channel block (SSB), the first SMTC list information including one or more bias values, the first SMTC information list being one of the N SMTC list information, where N is a positive integer; wherein, the N SMTC list information correspond to N SSB cycles; SSB measurement is performed based on all or part of the N SMTC list information; wherein, all or part of the N SMTC list information is determined based on the N SSB cycles.

2. The method according to claim 1, characterized in that, The first SMTC list information also includes a period value and a duration.

3. The method according to claim 1, characterized in that, The first information also indicates the second list information, which includes N baseline SMTC configuration information. The first baseline SMTC configuration information includes one or more of period value, duration and bias value. The first baseline SMTC configuration information is one of the N baseline SMTC configuration information. The first list information and the second list information correspond one-to-one with the order of the N SMTC list information and the order of the N baseline SMTC configuration information.

4. The method according to any one of claims 1 to 3, characterized in that, The step of performing SSB measurement based on all or part of the N SMTC list information includes: Based on the SSB cycle supported by the first device, select all or part of the N SMTC list information and perform SSB measurement.

5. The method according to claim 4, characterized in that, The step of selecting all or part of the N SMTC list information according to the SSB cycle supported by the first device and performing SSB measurement includes: Select the SMTC list information from the N SMTC list information whose corresponding SSB period is less than or equal to the maximum SSB period supported by the first device.

6. An information transmission method, characterized in that, Applied to the first device, comprising: Receive second information, the second information indicating at least one cell status information element, each of the at least one cell status information element corresponds to one SSB cycle, and the first cell status information element is used to determine whether the first cell is in a prohibited state, and the first cell status information element is one of the at least one cell status information elements; The state of the first cell is determined based on the SSB period supported by the first device and the at least one cell state information element.

7. The method according to claim 6, characterized in that, Determining the prohibited state of the first cell based on the SSB period supported by the first device and the cell state of the at least one cell includes: If the SSB period supported by the first device is greater than or equal to the SSB period corresponding to the first cell state information element, the first cell state information element is ignored. If the SSB period supported by the first device is less than the SSB period corresponding to the first cell status information element, and the first cell status information element is set to missing or prohibited, the first cell is determined to be in a prohibited state.

8. The method according to claim 6, characterized in that, Determining the prohibited state of the first cell based on the SSB period supported by the first device and the cell state of the at least one cell includes: If the SSB period supported by the first device is less than or equal to the SSB period corresponding to the first cell state information element, the first cell state information element is ignored. If the SSB period supported by the first device is greater than the SSB period corresponding to the first cell status information element, and the first cell status information element is set to missing or prohibited, then the first cell is determined to be in a prohibited state.

9. An information transmission method, characterized in that, Applied to the first device, comprising: The first device, which receives a second cell status information element and the SSB period of the first cell, uses the second cell status information element to evaluate whether the first cell is in a prohibited state in order to support the downlink coverage enhancement function of non-terrestrial network. When the first cell is assessed as being in an unbanned state based on the second cell state information, the state of the first cell is determined based on the SSB cycle supported by the first device and the SSB cycle of the first cell.

10. The method according to claim 9, characterized in that, Determining the state of the first cell based on the SSB cycle supported by the first device and the SSB cycle of the first cell includes: When the SSB cycle supported by the first device is less than the SSB cycle of the first cell, the first cell is determined to be in a prohibited state; or, when the SSB cycle supported by the first device is greater than or equal to the SSB cycle of the first cell, the first cell is determined to be in a non-prohibited state.

11. An information transmission method, characterized in that, Applied to a second device, comprising: Send first information, which indicates first list information. The first list information includes N measurement timing configuration (SMTC) list information based on synchronization signals and physical broadcast channel blocks (SSBs). The first SMTC list information includes one or more bias values. The first SMTC information list is one of the N SMTC list information, where N is a positive integer. The N SMTC list information corresponds to N SSB cycles. The N SSB cycles are used to determine the SMTC list information used to perform SSB measurements. Send SSB.

12. The method according to claim 11, characterized in that, The first SMTC list information also includes a period value and a duration.

13. The method according to claim 11, characterized in that, The first information also indicates the second list information, which includes N baseline SMTC configuration information. The first baseline SMTC configuration information includes one or more of period value, duration and bias. The first baseline SMTC configuration information is one of the N baseline SMTC configuration information. The first list information and the second list information correspond one-to-one with the order of the N SMTC list information and the order of the N baseline SMTC configuration information.

14. An information transmission method, characterized in that, Applied to a second device, comprising: Send a second message, the second message indicating at least one cell status information element, each cell status information in the at least one cell status information element corresponds to one SSB cycle, and a first cell status information element is used to determine whether the first cell is in a prohibited state, the first cell status information element being one of the at least one cell status information elements.

15. An information transmission method, characterized in that, Applied to a second device, comprising: The second cell status information element and the SSB period of the first cell are sent. The second cell status information element is used by the first device supporting the downlink coverage enhancement function of non-terrestrial network to evaluate whether the first cell is in a prohibited state. The second cell status information element and the SSB period of the first cell are used by the first device to determine the status of the first cell.

16. A communication device, characterized in that, include: Processor and memory; The memory is used to store computer programs or instructions; The processor is configured to execute a computer program or instructions in memory to cause the device to perform the method as described in any one of claims 1 to 5, or to cause the device to perform the method as described in any one of claims 6 to 8, or to cause the device to perform the method as described in any one of claims 9 to 10, or to cause the device to perform the method as described in any one of claims 11 to 13, or to cause the device to perform the method as described in claim 14, or to cause the device to perform the method as described in claim 15.

17. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions that, when invoked by an electronic device, cause the electronic device to perform the method as described in any one of claims 1 to 5, or the method as described in any one of claims 6 to 8, or the method as described in any one of claims 9 to 10, or the method as described in any one of claims 11 to 13, or the method as described in claim 14, or the method as described in claim 15.

18. A computer program product, characterized in that, The method includes computer execution instructions that, when executed on a computer, cause the computer to perform the method as described in any one of claims 1 to 5, or cause the computer to perform the method as described in any one of claims 6 to 8, or cause the computer to perform the method as described in any one of claims 9 to 10, or cause the computer to perform the method as described in any one of claims 11 to 13, or cause the computer to perform the method as described in claim 14, or cause the computer to perform the method as described in claim 15.

19. A chip system, characterized in that, The chip system includes: Communication interface; A processor is configured to invoke and execute the instructions via the communication interface, causing a device equipped with the chip system to perform the method as described in any one of claims 1 to 5, or to perform the method as described in any one of claims 6 to 8, or to perform the method as described in any one of claims 9 to 10, or to perform the method as described in any one of claims 11 to 13, or to perform the method as described in claim 14, or to perform the method as described in claim 15.

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