Communication method and communication apparatus

Abstract

A communication method and a communication apparatus, which relate to the technical field of communications. In the method, a terminal device receives a first master information block (MIB) from a satellite, wherein the first MIB indicates that a first cell does not schedule control signaling and indicates the state of the first cell, the control signaling is used for scheduling a system message, and the system message indicates information used for accessing the first cell; and the terminal device determines, on the basis of the state of the first cell, whether to continue to camp on the first cell. Therefore, when a first MIB indicates that a first cell does not schedule control signaling, a terminal device determines, on the basis of the state of the first cell, whether to perform cell re-selection, which can reduce the frequency of the terminal device performing cell re-selection, such that the power consumption of the terminal device can be reduced.

Description

Communication method and communication apparatus

[0001] This application claims priority from the Chinese Patent Application No. 202410903069.9 filed on July 5, 2024, and entitled "Communication method and communication apparatus", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of communication technology, and more particularly, to a communication method and a communication apparatus. BACKGROUND

[0003] Compared with ground networks, satellite networks have their unique advantages, for example, they can provide wider coverage, such as providing communication services for areas that cannot be covered by ground networks, such as oceans and forests; and for example, they are not easily damaged by natural disasters or external forces.

[0004] Due to the large coverage of satellites, satellites need to move frequently in order to provide communication services for terminal devices in different areas, but this will also cause terminal devices in some areas to be unable to obtain communication services provided by satellites at all times. To this end, terminal devices determine whether to perform satellite access in a current cell or in other cells according to the value of a K synchronization signal block (SSB) parameter (used to indicate the number of subcarriers between subcarrier 0 of a common resource block and subcarrier 0 of an SSB) in a master information block (MIB) broadcast by a satellite. For example, for frequency range (FR) 1, if the value of the K SSB parameter is less than 24, it indicates that the current cell will schedule a physical downlink control channel (PDCCH) common search space (CSS), and the terminal device can perform satellite access in the current cell; if the value of the K SSB parameter is greater than 23, it indicates that the current cell will not schedule a PDCCH CSS, and the terminal device can perform satellite access in other cells. The PDCCH CSS can be used to schedule broadcast messages or system information required for satellite access.

[0005] However, the above scheme can cause frequent cell reselection of terminal devices, thereby increasing the power consumption of terminal devices. Therefore, how to reduce the power consumption of terminal devices is a technical problem to be solved at present. SUMMARY

[0006] The present application provides a communication method and a communication apparatus, which can support reducing the power consumption of terminal devices.

[0007] In a first aspect, a communication method is provided, comprising: receiving a first MIB, the first MIB indicating that a first cell will not schedule control signaling and a state of the first cell, the control signaling being used to schedule a system message, the system message indicating information used to access the first cell; and determining whether to continue camping on the first cell according to the state of the first cell.

[0008] The solution of the first aspect can be implemented by a device at a terminal device side. The device at the terminal device side can be a terminal device, a module (such as a chip system) in the terminal device, or a logic node, a logic module, or software capable of implementing all or part of the functions of the terminal device. For ease of description, the terminal device is described below as an example.

[0009] When the first MIB indicates that the first cell will not schedule the control signaling, the terminal device can determine whether to perform cell reselection according to the state of the first cell, which can reduce the frequency of cell reselection by the terminal device, thereby reducing the power consumption of the terminal device. Compared with a solution in which the first MIB only indicates that the first cell will not schedule the control signaling, by indicating that the first cell will not schedule the control signaling and the state of the first cell, the terminal device can determine whether to perform cell reselection according to the state of the first cell, which can reduce the frequency of cell reselection by the terminal device, i.e., the terminal device does not need to frequently perform cell reselection, thereby effectively reducing the power consumption of the terminal device.

[0010] In some implementations of the first aspect, the method further comprises: receiving a second MIB, the second MIB indicating whether the first cell schedules the control signaling, wherein a first time interval is between a time of receiving the first MIB and a time of receiving the second MIB.

[0011] Optionally, when the first MIB indicates that the first cell is in a state of temporarily prohibiting access, the terminal device receives the second MIB.

[0012] In this way, the terminal device can determine whether to access the first cell according to the second MIB. When the terminal device determines that the first cell cannot be accessed according to the second MIB, the terminal device can continue to camp on the first cell, which can reduce the power consumption of the terminal device. When the terminal device determines that the first cell can obtain the control signaling according to the second MIB, the terminal device can access the first cell.

[0013] In a second aspect, a communication method is provided, comprising: determining a first MIB, the first MIB indicating that a first cell will not schedule control signaling and a state of the first cell, the control signaling being used to schedule a system message, the system message indicating information used to access the first cell, the state of the first cell being used to determine whether to continue camping on the first cell; and sending the first MIB.

[0014] The solution of the second aspect can be implemented by a device at a network equipment side, which can be a network equipment, a module (such as a chip system, etc.) in the network equipment, or a logic node, a logic module or software capable of implementing all or part of the functions of the network equipment. For ease of description, the network equipment is taken as an example for description hereinafter.

[0015] By indicating to the terminal device that the first cell will not schedule the control signaling and the state of the first cell, the terminal device can determine whether to perform cell reselection according to the state of the first cell, which can reduce the frequency of cell reselection of the terminal device, thereby reducing the power consumption of the terminal device. Compared with the solution in which the first MIB only indicates that the first cell will not schedule the control signaling, by indicating that the first cell will not schedule the control signaling and the state of the first cell, the terminal device can determine whether to perform cell reselection according to the state of the first cell, which can reduce the frequency of cell reselection of the terminal device, i.e., the terminal device does not need to frequently perform cell reselection, thereby effectively reducing the power consumption of the terminal device.

[0016] In some implementations of the second aspect, the method further includes: transmitting a second MIB, the second MIB indicating whether the first cell schedules the control signaling. The first MIB is received at a first time interval from the second MIB.

[0017] Optionally, when the first MIB indicates that the first cell is in the state of temporarily prohibiting access, the network equipment transmits the second MIB to the terminal device.

[0018] In combination with any one of the first aspect and the second aspect, the state of the first cell includes: a first state (which can also be understood as a state of temporarily prohibiting access) or a second state (which can also be understood as a state of prohibiting access), the first state being the state of temporarily prohibiting access, and the second state being the state of prohibiting access.

[0019] Optionally, the state of the first cell is the first state, i.e., the state of the first cell is the state of temporarily prohibiting access.

[0020] Optionally, the state of the first cell is the second state, i.e., the state of the first cell is the state of prohibiting access.

[0021] When the first MIB indicates that the first cell does not schedule the control signaling, and the first MIB indicates that the first cell is in the first state, the terminal device can wait until the first cell switches from the first state to a third state (a state in which the terminal device is allowed to access the cell, or a state in which access is allowed) before performing cell access. In this way, the terminal device does not need to switch or move from the first cell to another cell, which can effectively reduce the power consumption of the terminal device.

[0022] When the first MIB indicates that the first cell does not schedule the control signaling, and the first MIB indicates that the first cell is in the second state, the terminal device can perform cell reselection based on this. In this way, compared to performing cell reselection based only on the first cell not scheduling the control signaling, the above scheme can reduce the frequency of cell reselection by the terminal device, thereby supporting reducing the power consumption of the terminal device.

[0023] In combination with any one of the first aspect and the second aspect, the first time is preconfigured, or the first time is indicated by the first MIB.

[0024] When the first time is a preconfigured time, this can reduce signaling interaction overhead and is also beneficial to reducing the power consumption of the terminal device.

[0025] When the first time is a time indicated by the first MIB, this can support the terminal device detecting the second MIB according to the indicated time, thereby being able to reduce the detection overhead of the terminal device.

[0026] In combination with any one of the first aspect and the second aspect, the first time is indicated by the first MIB, the second MIB indicates that the first cell schedules the control signaling, the first time is a time at which the first cell switches from a first state (or a state in which access is temporarily prohibited) to a third state (or a state in which access is allowed), and the third state is a state in which access is allowed.

[0027] In this way, the terminal device can detect the second MIB according to the first time indicated by the first MIB, and determine that the first cell can be accessed according to the indication of the second MIB.

[0028] In combination with any one of the first aspect and the second aspect, the first MIB includes a parameter, and a first value of the parameter indicates that the first cell does not schedule the control signaling and a state of the first cell.

[0029] The terminal device can determine whether the first cell can schedule control signaling and the state of the first cell according to different values of the first parameter, and when it is determined that the first cell cannot schedule control signaling, the terminal device can determine whether cell reselection is needed according to the state of the first cell, thereby reducing the power consumption of the terminal device. For example, when the terminal device determines that the state of the first cell is the first state, the terminal device can continue to camp on the first cell, thereby reducing the power consumption of the terminal device.

[0030] In combination with any one of the first aspect and the second aspect, the first value of the parameter indicates that the first cell is in the first state, the first value belongs to a first value range, and a difference between the first value and a start value of the first value range indicates a detection period of the MIB, or the difference between the first value and the start value of the first value range indicates a time for the first cell to switch from the first state (or the state of temporarily prohibiting access) to a third state (or the state of allowing access), and the first state is the state of temporarily prohibiting access, and the third state is the state of allowing access.

[0031] In this way, the terminal device can determine the time for receiving the second MIB according to the difference between the first value and the start value of the first value range, which can support reducing the detection overhead of the terminal device. For example, after receiving the first MIB, the terminal device only needs to detect or receive the second MIB according to the first time, and does not need to detect or receive other MIBs at other time periods.

[0032] In combination with any one of the first aspect and the second aspect, the parameter is K 同步信号块SSB .

[0033] In combination with any one of the first aspect and the second aspect, the first value belongs to a first value range, and a difference between the first value and an end value of the first value range indicates a detection period of the MIB, or the difference between the first value and the start value of the first value range indicates a time for the first cell to switch from the first state (or the state of temporarily prohibiting access) to a third state (or the state of allowing access).

[0034] In this way, the terminal device can determine the time for receiving the second MIB according to the difference between the first value and the end value of the first value range, which can support reducing the detection overhead of the terminal device. For example, after receiving the first MIB, the terminal device detects or receives the second MIB according to the first time, and does not need to detect or receive other MIBs at other time periods.

[0035] In combination with any one of the first aspect and the second aspect, the first value further indicates the first time.

[0036] In this way, the terminal device can determine that the first cell will not schedule control signaling, the state in which the first cell is located, and the time for receiving the second MIB according to the first value, which can reduce signaling overhead for indicating the first time.

[0037] In a third aspect, a communication apparatus is provided. The communication apparatus can be a terminal device, or can be a device or module for performing functions of the terminal device.

[0038] In a possible implementation, the communication apparatus can include a module or unit for performing each of the methods / operations / steps / actions described in the first aspect, which can be hardware circuitry, software, or a combination of hardware circuitry and software.

[0039] For example, the communication apparatus includes a transceiver and a processing unit.

[0040] In a fourth aspect, a communication apparatus is provided. The communication apparatus can be a network device, or can be a device or module for performing functions of the network device.

[0041] In a possible implementation, the communication apparatus can include a module or unit for performing each of the methods / operations / steps / actions described in the second aspect, which can be hardware circuitry, software, or a combination of hardware circuitry and software.

[0042] For example, the communication apparatus includes a transceiver and a processing unit.

[0043] In a fifth aspect, a communication apparatus is provided. The communication apparatus includes a processor configured to cause the communication apparatus to perform the methods described in the first aspect and any possible implementation of the first aspect, by executing computer programs or instructions, or by a logic circuit; or to cause the communication apparatus to perform the methods described in the second aspect and any possible implementation of the second aspect.

[0044] In a possible implementation, the communication apparatus further includes a memory configured to store the computer programs or instructions.

[0045] In a possible implementation, the communication apparatus further includes a communication interface configured to input and / or output signals.

[0046] In a sixth aspect, a communication apparatus is provided. The communication apparatus includes a logic circuit and an input / output interface configured to input and / or output signals, and the logic circuit is configured to perform the methods described in the first aspect and any possible implementation of the first aspect; or the logic circuit is configured to perform the methods described in the second aspect and any possible implementation of the second aspect.

[0047] In a seventh aspect, a computer readable storage medium is provided, and the computer readable storage medium has stored thereon a computer program or instructions, which, when executed on a computer, cause the method described in the first aspect and any possible implementation of the first aspect to be performed; or cause the method described in the second aspect and any possible implementation of the second aspect to be performed.

[0048] In an eighth aspect, a computer program product is provided, and the computer program product contains instructions, which, when executed on a computer, cause the method described in the first aspect and any possible implementation of the first aspect to be performed; or cause the method described in the second aspect and any possible implementation of the second aspect to be performed.

[0049] In a ninth aspect, a chip or chip system is provided, and the chip or chip system comprises one or more processors configured to execute computer programs or instructions in the memory, so that the chip or chip system implements the method in the first aspect and any possible implementation of the first aspect; or implements the method in the second aspect and any possible implementation of the second aspect.

[0050] In a tenth aspect, a chip is provided, and the chip is installed in a communication device, and the chip comprises a processor and a communication interface, and the processor reads instructions through the communication interface and executes the instructions, so that the communication device performs the method in the first aspect and any possible implementation of the first aspect or performs the method in the second aspect and any possible implementation of the second aspect.

[0051] The beneficial effects of the third aspect to the tenth aspect can be referred to the beneficial effects of the first aspect to the second aspect, and will not be described again. BRIEF DESCRIPTION OF DRAWINGS

[0052] FIG. 1 is a schematic diagram of an architecture of a communication system to which embodiments of the present application are applicable.

[0053] FIG. 2 is a schematic diagram of an application scenario of an embodiment of the present application.

[0054] FIG. 3 is a schematic diagram of an interaction flow of a communication method according to an embodiment of the present application.

[0055] FIG. 4 is a schematic diagram of a relationship between a first MIB and a second MIB according to an embodiment of the present application.

[0056] FIG. 5 is a schematic block diagram of a communication apparatus according to an embodiment of the present application.

[0057] FIG. 6 is a schematic block diagram of another communication apparatus according to an embodiment of the present application. DETAILED DESCRIPTION

[0058] In order to facilitate the understanding of the embodiments of the present application, the following points are first explained.

[0059] I. Unless otherwise stated, the meaning of "a plurality" is two or more.

[0060] II. If there is no special description and logical conflict, the terms and / or descriptions between different embodiments of the present application are consistent and can be referred to each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0061] III. The various digital numbers involved in the present application are only for the convenience of differentiation, and do not limit the protection scope of the present application. The size of the serial number involved in the present application does not mean the execution order. The execution order of each process should be determined according to its function and inherent logic. For example, the terms "first", "second", "third", "fourth" and other various term labels in the specification and claims of the present application and the drawings (if any) are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. Among them, the data thus used can be interchanged under appropriate circumstances, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein.

[0062] At the same time, any embodiment or design scheme described as "exemplary" or "for example" in the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. On the contrary, the use of "exemplary" or "for example" and the like is intended to present the relevant concept in a specific manner, so as to facilitate understanding.

[0063] IV. The terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to those clearly listed steps or units, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0064] V. In the present application, "for indicating" can be understood as "enabling", and "enabling" includes direct enabling and indirect enabling. When describing that a certain information is used to enable A, it can include that the information directly enables A or indirectly enables A, and it does not mean that A must be carried in the information.

[0065] If the information enabled by the information is referred to as to-be-enabled information, there are many ways to enable the to-be-enabled information in the implementation process, for example, but not limited to, the to-be-enabled information can be directly enabled, such as the to-be-enabled information itself or an index of the to-be-enabled information. The to-be-enabled information can also be indirectly enabled by enabling other information, where the other information and the to-be-enabled information have an association relationship. Only a part of the to-be-enabled information can be enabled, and the other part of the to-be-enabled information is known or agreed in advance. For example, the enabling of specific information can also be achieved by means of the pre-agreed (for example, the protocol stipulates) arrangement order of each information, thereby reducing the enabling overhead to a certain extent. Meanwhile, the common part of each information can be identified and uniformly enabled to reduce the enabling overhead caused by separately enabling the same information.

[0066] In addition, the indication can include direct indication, indirect indication, display indication, and implicit indication. When it is described that certain indication information is used to indicate A, it can be understood that the indication information carries A, directly indicates A, or indirectly indicates A.

[0067] In the present application, the information indicated by the indication information is referred to as to-be-indicated information. In the implementation process, there are many ways to indicate the to-be-indicated information, for example, but not limited to, the to-be-indicated information can be directly indicated, such as the to-be-indicated information itself or an index of the to-be-indicated information. The to-be-indicated information can also be indirectly indicated by indicating other information, where the other information and the to-be-indicated information have an association relationship. Only a part of the to-be-indicated information can be indicated, and the other part of the to-be-indicated information is known or agreed in advance. For example, the indication of specific information can also be achieved by means of the pre-agreed (for example, the protocol stipulates) arrangement order of each information, thereby reducing the indication overhead to a certain extent. In addition, the to-be-indicated information can be sent as a whole, or can be sent separately in multiple sub-information, and the sending period and / or sending time of the sub-information can be the same or different.

[0068] Sixthly, in the present application, "pre-configuration" can include pre-definition, for example, protocol definition. The "pre-definition" can be implemented by pre-storing corresponding codes, tables or other information indicating methods in devices (for example, including various network elements), and the present application does not limit the specific implementation method thereof.

[0069] VII. The term "storage" or "preservation" in this application can refer to storage in one or more memory devices. These memory devices can be separately configured or integrated into an encoder, decoder, processor, or communication device. Alternatively, some memory devices can be separately configured, while others can be integrated into a decoder, processor, or communication device. The type of memory can be any form of storage medium, and this is not limited.

[0070] 8. The term "protocol" in this application may refer to standard protocols in the field of communications, for example, it may include fourth-generation (4G) protocols. th Generation 4G network, fifth generation (5G) network th This application does not limit the scope to network protocols such as 5G (generation, 5G), new radio (NR), 5.5G, and related protocols used in future communication networks.

[0071] 9. The arrows or boxes indicated by dashed lines in the schematic diagrams in the accompanying drawings of this application represent optional steps or optional modules.

[0072] 10. Unless otherwise stated, " / " indicates that the objects before and after are in an "or" relationship. For example, A / B can mean A or B. In this application, "and / or" is merely a description of the relationship between the related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. A and B can be singular or plural.

[0073] XI. In this application, "send" and "receive" indicate the direction of signal transmission. For example, "send information to XX" can be understood as the destination of the information being XX, which may include direct transmission via the air interface or indirect transmission by other units or modules via the air interface. "Receive information from YY" can be understood as the source of the information being YY, which may include direct reception from YY via the air interface or indirect reception from YY by other units or modules via the air interface. "Send" can also be understood as the "output" of a chip interface, and "receive" can also be understood as the "input" of a chip interface. In other words, sending and receiving can occur between devices, such as between network devices and terminal devices, or within a device, such as between components, modules, chips, software modules, or hardware modules within the device via a bus, wiring, or interface.

[0074] First, the communication system to which the embodiments of this application are applicable will be described.

[0075] The technical solutions provided in this application can be applied to various communication systems, such as 5G or NR systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, and communication systems in future communication networks.

[0076] The technical solutions provided in this application can also be applied to device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), and Internet of Things (IoT) communication systems or other communication systems.

[0077] The terminal devices in this application embodiment include various devices with wireless communication functions, which can be used to connect people, objects, machines, etc. Terminal devices can be widely used in various scenarios, such as: cellular communication, D2D, V2X, M2M, MTC, IoT, virtual reality (VR), augmented reality (AR), industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, drones, robots, remote sensing, passive sensing, positioning, navigation, autonomous delivery, etc. The terminal device can be a terminal in any of the above scenarios, such as an MTC terminal, an IoT terminal, etc. The terminal device can be a third-generation partner project (3GPP) terminal. rdThe terminal device can be a user equipment (UE), terminal, fixed device, mobile station device or mobile device, subscriber unit, handheld device, vehicle device, wearable device, cellular phone, smart phone, SIP phone, wireless data card, personal digital assistant (PDA), computer, tablet computer, notebook computer, wireless modem, handset, laptop computer, computer with wireless transceiver function, smart book, vehicle, satellite, global positioning system (GPS) device, aircraft (such as a drone, helicopter, multi-helicopter, four-helicopter, or airplane, etc.), ship, remote control device smart home device, industrial device, or device built in the above device (such as a communication module, modem or chip in the above device, etc.), or other processing device connected to the wireless modem.

[0078] In the embodiments of the present application, the device for implementing the function of the terminal device can be a terminal device, or a device capable of supporting the terminal device to implement the function, such as a chip system or a chip, which can be installed in the terminal device. In the embodiments of the present application, the chip system can be composed of a chip, or can include a chip and other discrete devices.

[0079] The network device in the embodiments of the present application can be a device for communicating with the terminal device, which can also be referred to as an access network device or a radio access network device, such as a network device can be a base station. The network device in the embodiments of the present application can refer to a radio access network (RAN) node (or device) for accessing the terminal device to a wireless network.

[0080] The base station can be referred to as various names including, but not limited to, a Node B, an evolved Node B (eNB), a next generation Node B (gNB), a relay station, an access point, a transmitting and receiving point (TRP), a transmitting point (TP), a master station, a secondary station, a multi-standard radio (MSR) node, a home base station, a network controller, an access node, a radio node, an access point (AP), a transmission node, a transceiver node, a base band unit (BBU), a remote radio unit (RRU), an active antenna unit (AAU), a remote radio head (RRH), a central unit (CU), a distributed unit (DU), a positioning node, and the like.

[0081] The CU (CU-CP and CU-UP), DU or RU can also have different names in different systems, and those skilled in the art can understand their meanings. For example, the access network device can be a network device or a module of a network device in an open radio access network (open RAN, ORAN) system. In the ORAN system, the CU can also be referred to as an open (O)-CU, the DU can also be referred to as an O-DU, the CU-CP can also be referred to as an O-CU-CP, the CU-UP can also be referred to as an O-CU-UP, and the RU can also be referred to as an O-RU. Any of the CU (or CU-CP, CU-UP), DU and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0082] The base station can be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof. The base station can also refer to a communication module, a modem, or a chip for being disposed in the foregoing devices or apparatuses.

[0083] The base station can also be a mobile switching center, a device assuming a base station function in D2D, V2X, M2M communication, a device assuming a base station function in a future communication network, and the like. The base station can support networks of the same or different access technologies. Embodiments of the present application do not limit specific technologies and specific device forms adopted by the network device.

[0084] A base station can be fixed or mobile. For example, a helicopter or unmanned aerial vehicle can be configured to act as a mobile base station, and one or more cells can move according to the location of the mobile base station. In other examples, a helicopter or unmanned aerial vehicle can be configured to act as a device that communicates with another base station.

[0085] In an embodiment of the present application, the apparatus for implementing the function of the network device can be a network device, or an apparatus capable of supporting the network device to implement the function, such as a chip system or a chip, which can be installed in the network device. In an embodiment of the present application, the chip system can be composed of a chip, or can include a chip and other discrete devices.

[0086] The network device and the terminal device can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on the water surface; and can also be deployed on aircraft, balloons and satellites in the air. The present application does not limit the scenario in which the network device and the terminal device are located.

[0087] FIG. 1 is a schematic diagram of a communication system to which an embodiment of the present application is applicable. As shown in FIG. 1, the communication system includes a network device 110 and a terminal device 120. The network device 110 is an entity for transmitting or receiving signals, and is configured to communicate with the terminal device 120. The terminal device 120 is an entity for transmitting or receiving signals, and is configured to communicate with the network device 110. The network device 110 can include multiple communication nodes, each of which serves as a physical cell and is controlled by a control unit of the network device 110, and a same terminal device communicates in a same physical cell at a same time.

[0088] In a possible scenario, the network device 110 and the terminal device 120 can be applied in a non-terrestrial network (NTN) scenario. The NTN system includes a satellite system. According to the height of the satellite, the satellite system can be divided into a highly elliptical orbiting (HEO) satellite, a geostationary earth orbit (GEO) satellite, a medium earth orbit (MEO) satellite and a low-earth orbit (LEO) satellite, etc. In addition, the NTN system can also include a high altitude platform station (HAPS) communication system and other aerial network devices. The aerial network device involved in the present application is not limited to the above examples.

[0089] Optionally, the related functions of the network device 110 and the terminal device 120 can be implemented by one device, or can be implemented by multiple devices together, and can also be implemented by one or more functional modules in a device, or can be one or more chips, or can be a system on chip (SOC) or a chip system. The chip system can be composed of a chip, or can include a chip and other discrete devices, and no limitation is made in this regard.

[0090] It can be understood that the above functions can be network elements in a hardware device, software functions running on a special hardware, a combination of hardware and software, or virtualized functions instantiated on a platform (for example, a cloud platform).

[0091] It should be noted that the communication system shown in FIG. 1 is for more clearly illustrating the technical solutions of the embodiments of the present application, and does not constitute a limitation on the technical solutions provided by the present application. It can be known by those skilled in the art that, with the evolution of network architecture and the appearance of new business scenarios, the technical solutions provided by the present application are also applicable to similar technical problems.

[0092] Based on the communication system shown in FIG. 1, the present application provides a schematic diagram of an application scenario, which can be seen from FIG. 2.

[0093] FIG. 2 is a schematic diagram of an application scenario according to an embodiment of the present application. As shown in FIG. 2, the network device 110 serves as a base station of wireless communication, and a ground station forwards signaling between the network device 110 and a core network. At least one communication node is deployed on each satellite, and the multiple communication nodes deployed on multiple satellites are controlled by a control unit of the network device 110.

[0094] In the application scenario shown in FIG. 2, the satellite needs to move frequently in order to provide communication services for terminal devices in different areas, but this will also cause terminal devices in some areas to be unable to obtain the communication services provided by the satellite at all times. Therefore, the terminal device can determine whether to perform satellite access in a current cell or satellite access in another cell according to the K SSB parameter in the MIB broadcast by the satellite.

[0095] However, the above scheme can cause frequent cell reselection of the terminal device. For example, when the terminal device determines that satellite access cannot be performed in the current cell, the terminal device needs to move to another cell or perform cell reselection, thereby increasing the power consumption of the terminal device. In view of this, the present application provides a communication method and a communication apparatus, which can support reducing the power consumption of the terminal device.

[0096] For ease of description, the main terms involved in the present application are described below.

[0097] The MIB mainly includes the following information:

[0098] o System Frame Number (SFN): 10 bits, transmitted in the channel coding of the physical broadcast channel (PBCH);

[0099] o SubCarrierSpacingCommon: 1 bit, taking the value of "SCS 15 or 60" or "SCS 30 or 120". If the terminal device reads the MIB on the carrier frequency of FR1, the subcarrier spacing corresponding to "SCS 15 or 60" is 15 kHz, and the subcarrier spacing corresponding to "SCS 30 or 120" is 30 kHz; if the terminal device reads the MIB on the carrier frequency of FR2, the subcarrier spacing corresponding to "SCS 15 or 60" is 60 kHz, and the subcarrier spacing corresponding to "SCS 30 or 120" is 120 kHz.

[0100] o SSB subcarrier offset (ssb-SubcarrierOffset): represented as k SSB , that is, the number of subcarriers offset between the subcarrier 0 of the common resource block and the subcarrier 0 of the SSB. ssb-SubcarrierOffset has 4 bits, and the 4 bits represent 0-15. For FR2, the value of k SSB is 0-11, which can be indicated only by ssb-SubcarrierOffset; for FR1, the value of k SSB is 0-23, which is not enough to be indicated only by ssb-SubcarrierOffset, and an additional 1 bit needs to be added in the channel coding of the PBCH.

[0101] o Demodulation reference signal (DMRS)-TypeA-Position: the starting position of Type A-DMRS in a slot, 1 bit, taking the value of pos2 or pos3. Wherein, pos2 represents that the starting position of Type A-DMRS is the 3rd OFDM symbol in a slot, and pos3 represents that the starting position of Type A-DMRS is the 4th OFDM symbol in a slot.

[0102] pdcch-ConfigSIB1: 8 bits in total. Among them, the first 4 bits indicate the configuration of common control resource set (CORESET) 0 of the initial downlink (DL) bandwidth part (BWP), and the last 4 bits indicate the configuration of Type0-PDCCH CSS of the initial DL BWP. If ssb-SubcarrierOffset indicates that SIB1 does not exist, pdcch-ConfigSIB1 can inform the terminal device on which frequency to search for SSB carrying SIB1 or in which frequency range there is no SSB carrying SIB1.

[0103] k in MIB SSB may be used to indicate whether the current cell will schedule PDCCH CSS (or Type0-PDCCH CSS). For example:

[0104] For FR1, k SSB <24, which indicates that the current cell will schedule PDCCH CSS (or Type0-PDCCH CSS), k SSB >23, which indicates that the current cell will not schedule PDCCH CSS (or Type0-PDCCH CSS), 24≤k SSB ≤29, which indicates that the current cell will not schedule PDCCH CSS (or Type0-PDCCH CSS), the neighboring cell may schedule PDCCH CSS (or Type0-PDCCH CSS), k SSB =31, which indicates that neither the current cell nor the neighboring cell will schedule PDCCH CSS (or Type0-PDCCH CSS).

[0105] For FR2, k SSB <12, which indicates that the current cell will schedule PDCCH CSS (or Type0-PDCCH CSS), k SSB >11, which indicates that the current cell will not schedule PDCCH CSS (or Type0-PDCCH CSS), 12≤k SSB ≤13, which indicates that the current cell will not schedule PDCCH CSS (or Type0-PDCCH CSS), the neighboring cell may schedule PDCCH CSS (or Type0-PDCCH CSS), k SSB =15, which indicates that neither the current cell nor the neighboring cell will schedule PDCCH CSS (or Type0-PDCCH CSS).

[0106] The communication method and the communication device of the embodiments of the present application are described below in conjunction with the drawings.

[0107] FIG. 3 is an interaction flow diagram of a communication method according to an embodiment of the present application. The method shown in FIG. 3 can be performed by the network device 110 and the terminal device 120, or by modules and / or devices (for example, chips or integrated circuits, etc.) with corresponding functions installed in the network device 110 and the terminal device 120, without limitation. Hereinafter, the network device 110 and the terminal device 120 are taken as examples for illustration. As shown in FIG. 3, the method includes the following steps.

[0108] S301, the network device 110 determines a first MIB.

[0109] The first MIB can be used to indicate that the first cell cannot or will not schedule control signaling (control signaling can also be replaced by terms such as control information or common control channel signaling, without limitation) and the state in which the first cell is located. The first cell is a cell in which the terminal device 120 currently resides or stays, or in other words, the terminal device 120 can receive or detect the first MIB in the first cell.

[0110] In the embodiments of the present application, the control signaling described above can schedule system messages, which can be used to indicate information for the terminal device 120 to access the first cell, such as random access information, etc.

[0111] In one possible example, the control signaling described above can be PDCCH CSS (or Type0-PDCCH CSS), or signaling with the same or similar functions as PDCCH CSS (or Type0-PDCCH CSS), without limitation.

[0112] In the embodiments of the present application, the state in which the first cell is located is related to the satellite coverage range.

[0113] For example, when the first cell is in the satellite coverage range, the first cell is in the active state, and the first cell can provide communication services for the terminal device; when the first cell is not in the satellite coverage range, the first cell is in the inactive state (or power saving state), and the first cell cannot provide communication services for the terminal device or support the terminal device to access the first cell. The first cell can switch from the inactive state to the active state, or from the active state to the inactive state.

[0114] In the embodiments of the present application, the state in which the first cell is located is related to whether the first cell can schedule control signaling.

[0115] For example, when the first cell can schedule control signaling, the first cell is in the active state; when the first cell cannot schedule control signaling, the first cell can be in the active state, or the first cell can also be in the inactive state.

[0116] The description of the state in which the first cell is located can also be seen in Table 1. Wherein, the content shown in Table 1 is only as an example, not as the final limit.

[0117] Table 1

[0118] As shown in Table 1, the state in which the first cell is located includes three, which are:

[0119] The first state is described as a state in which the terminal device 120 is temporarily prohibited from accessing the first cell;

[0120] The second state is described as a state in which the terminal device 120 is prohibited from accessing the first cell;

[0121] The third state is described as a state in which the terminal device 120 is allowed to access the first cell.

[0122] When the first cell is in the first state, the first state can also be understood as an inactive state. When the first cell is in the second state, the second state can also be understood as an active state. When the first cell is in the third state, the third state can also be understood as an active state.

[0123] In the embodiment of the application, the first state can also be described as a state in which the terminal device 120 is allowed to access the first cell in the future, but is temporarily prohibited from accessing the first cell at present (i.e., the first cell currently does not schedule control signaling, but can schedule control signaling in the future, or the first cell cannot schedule control signaling in a first time period, and can schedule control signaling in a second time period, the first time period being before the second time period). Therefore, the first state can be used to indicate a state in which the terminal device 120 is allowed to access the first cell in the future. Alternatively, the terminal device 120 can determine that it can continue to camp or stay in the first cell according to the first cell being in the first state, without performing cell reselection.

[0124] For example, the network device 110 does not allow the terminal device 120 to access the first cell in a first time period, but allows the terminal device 120 to access the first cell in a second time period, the second time period being after the first time period. Therefore, the first time period is a time period in which the terminal device is temporarily prohibited from accessing the first cell, the first cell is in the first state in the first time period, and the second time period is a time period in which the terminal device is allowed to access the first cell, i.e., the first cell is in the third state in the second time period. Wherein, the second time period can be predefined, or indicated by the first MIB, which is not limited. In addition, the first time period can be determined based on the time at which the terminal device 120 receives the first MIB.

[0125] In the embodiments of this application, the first state can also be described as that the first cell is currently in an inactive state, or the first cell is currently a power saving cell, or the first cell is currently not covered by a satellite, or the first cell is currently unable to provide communication services, etc.

[0126] In the embodiments of this application, when the first MIB indicates that the first cell cannot schedule control signaling, the first MIB can also indicate that the state of the first cell is the first state or the second state. When the state of the first cell is the first state, the state of the first cell can be switched, i.e., the state of the first cell can be switched from the first state to the third state. When the first MIB indicates that the first cell can schedule control signaling, the first MIB can not indicate that the first cell is in the third state, or when the first MIB indicates that the first cell can schedule control signaling, the first MIB can also indicate that the first cell is in the third state.

[0127] By defining the state of the first cell, the terminal device 120 can determine whether to perform cell reselection according to the state of the first cell, thereby reducing the frequency of cell reselection of the terminal device, and thus supporting reducing the power consumption of the terminal device.

[0128] Specifically, when the first MIB indicates that the first cell will not schedule control signaling, and the first MIB indicates that the first cell is in the first state, the terminal device 120 can wait until the first cell is switched from the first state to the third state (a state allowing the terminal device 120 to access the first cell) before performing cell access. In this way, the terminal device 120 does not need to switch or move from the first cell to other cells, which can effectively reduce the power consumption of the terminal device 120. When the first MIB indicates that the first cell will not schedule control signaling, and the first MIB indicates that the first cell is in the second state, the terminal device 120 can perform cell reselection accordingly. In this way, compared with performing cell reselection only according to that the first cell will not schedule control signaling, the above scheme can reduce the frequency of cell reselection of the terminal device, thereby supporting reducing the power consumption of the terminal device.

[0129] In one possible implementation, the first MIB includes a parameter 1, and different values of the parameter 1 can represent different meanings respectively. The description of the values of the parameter 1 can be referred to Table 2. The content shown in Table 2 is only as an example, not as the final limitation.

[0130] Table 2

[0131] As shown in Table 2, the parameter 1 includes two values, which are:

[0132] The first value is described as that the first cell will not schedule control signaling and the state of the first cell;

[0133] The second value describes whether the first cell can schedule control signaling and a state in which the first cell is located.

[0134] For example, the first value indicates that the state in which the first cell is located is the first state or the second state.

[0135] For example, the second value indicates that the state in which the first cell is located is the third state.

[0136] When the second value indicates that the first cell can schedule control signaling, the second value can not indicate that the state in which the first cell is located is the third state. Alternatively, the second value can implicitly indicate that the state in which the first cell is located is the third state.

[0137] By the parameter 1, the terminal device 120 can determine whether the first cell can schedule control signaling and the state in which the first cell is located according to different values of the parameter 1, and when it is determined that the first cell cannot schedule control signaling, the terminal device 120 can determine whether cell reselection is needed according to the state in which the first cell is located, thereby facilitating reduction of power consumption of the terminal device 120. For example, when the terminal device 120 determines that the state in which the first cell is located is the first state, the terminal device 120 can continue to camp on the first cell, thereby being able to reduce power consumption of the terminal device 120.

[0138] In one possible implementation, the parameter 1 can be K SSB The parameter K SSB The parameter is used to indicate whether the first cell can schedule control signaling and the state in which the first cell is located.

[0139] Taking FR1 as an example, K SSB The value of the parameter is less than 23, which indicates that the first cell can schedule control signaling and the state in which the first cell is located is the third state; K SSB The value of the parameter is equal to 30, which indicates that the first cell will not schedule control signaling and the state in which the first cell is located is the first state or the second state.

[0140] Optionally, K SSB The value of the parameter equal to 30 indicates that the first cell will not schedule control signaling and the state in which the first cell is located is the first state. In this way, the terminal device 120 can determine to continue to camp on the first cell without the need for cell reselection, which can reduce power consumption of the terminal device 120.

[0141] Taking FR2 as an example, K SSB The value of the parameter is less than 12, which indicates that the first cell can schedule control signaling and the state in which the first cell is located is the third state; K SSBThe value of the parameter is equal to 14, which indicates that the first cell does not schedule control signaling and the state of the first cell is the first state or the second state.

[0142] Optionally, K SSB The value of the parameter equal to 14 indicates that the first cell does not schedule control signaling and the state of the first cell is the first state. In this way, the terminal device 120 can determine to continue camping on the first cell without performing cell reselection, which can reduce the power consumption of the terminal device 120.

[0143] It should be noted that the above description of the value of the parameter K SSB The value of the parameter K SSB The number of bits of the parameter K SSB The parameter K

[0144] S302, the network device 110 sends the first MIB to the terminal device 120. Correspondingly, the terminal device 120 receives the first MIB.

[0145] S303, the terminal device 120 determines whether to continue camping on the first cell according to the state of the first cell.

[0146] When the terminal device 120 camps on the first cell, the terminal device 120 can determine whether to continue camping on the first cell, or determine whether to perform cell switching, or determine whether to move to a second cell (the second cell is a neighboring cell of the first cell), or determine whether to perform cell re-search, etc. according to the state of the first cell.

[0147] For example, the first MIB indicates that the state of the first cell is the first state, and the terminal device 120 determines to continue camping on the first cell, and can perform cell access after waiting for the first cell to switch from the first state to the third state. The duration of the waiting can be predefined or indicated by the network device 110, which is not limited.

[0148] For example, the first MIB indicates that the state of the first cell is the second state, and the terminal device 120 determines not to continue camping on the first cell and performs cell re-search, etc.

[0149] By the above method, when the first MIB indicates that the first cell will not schedule the control signaling, the terminal device can determine whether to perform cell reselection according to the state of the first cell, which can reduce the frequency of cell reselection of the terminal device, thereby reducing the power consumption of the terminal device. Compared with the scheme in which the first MIB only indicates that the first cell will not schedule the control signaling, by indicating that the first cell will not schedule the control signaling and the state of the first cell, the terminal device can determine whether to perform cell reselection according to the state of the first cell, which can reduce the frequency of cell reselection of the terminal device, that is, the terminal device does not need to frequently perform cell reselection, thereby effectively reducing the power consumption of the terminal device.

[0150] When the first MIB indicates that the first cell will not schedule the control signaling and the state of the first cell is the second state, the terminal device 120 can perform cell reselection, or perform cell re-search, or continue to camp on the first cell, and the like, which is not limited.

[0151] In one possible implementation, the method 300 can further include:

[0152] S304, the network device 110 sends the second MIB to the terminal device 120. Correspondingly, the terminal device 120 receives the second MIB.

[0153] When the terminal device 120 determines that the first cell is in the first state, the terminal device 120 can receive the second MIB, and the second MIB indicates whether the first cell schedules the control signaling. The receiving time of the first MIB and the receiving time of the second MIB are separated by a first time.

[0154] For example, when the second MIB indicates that the first cell will not schedule the control signaling, the terminal device 120 determines that the first cell is still in the first state.

[0155] For example, when the second MIB indicates that the first cell can schedule the control signaling, the terminal device 120 determines that the state of the first cell switches from the first state to a third state.

[0156] If the terminal device 120 determines that the value of the first parameter in the second MIB is still the first value, the terminal device 120 can determine that the state of the first cell is still the first state.

[0157] It should be noted that before the terminal device 120 receives the second MIB, the network device 110 can send a plurality of MIBs to the terminal device 120, and the terminal device 120 can not detect or receive the plurality of MIBs.

[0158] Thus, the terminal device 120 can determine whether to access the first cell according to the second MIB. When the terminal device 120 determines that the first cell cannot be accessed according to the second MIB, the terminal device 120 can continue to camp on the first cell, which can reduce the power consumption of the terminal device 120. When the terminal device 120 determines that the first cell can schedule control signaling according to the second MIB, the terminal device 120 can access the first cell.

[0159] In one possible implementation, the first time is a preconfigured time, or the first time is a time indicated by the first MIB.

[0160] For example:

[0161] When the terminal device 120 determines to continue to camp on the first cell, the terminal device 120 receives the second MIB according to a predefined first time, and determines whether the first cell can schedule control signaling according to the second MIB. When the first time is a preconfigured time, this can reduce the signaling interaction overhead, and is also conducive to reducing the detection power consumption of the terminal device 120. For example, the terminal device 120 can periodically detect the MIB, and does not need to detect the MIB at all times, which can reduce the detection power consumption of the terminal device 120.

[0162] Specifically, it can be agreed by a protocol predefined manner that the terminal device 120 determines, by the first parameter in the first MIB, that the first cell is in the first state, and the terminal device 120 interprets the first parameter in the second MIB in a periodic manner. When the terminal device 120 detects that the first parameter in the second MIB takes a second value, the terminal device 120 determines that the first cell switches from the first state to the third state.

[0163] For another example:

[0164] When the terminal device 120 continues to camp on the first cell, the terminal device 120 receives the second MIB according to the first time indicated by the first MIB. Thus, this can support the terminal device to detect the second MIB according to the indicated time, thereby being able to reduce the detection overhead of the terminal device. For example, the terminal device 120 does not need to periodically detect the MIB, thereby being conducive to reducing the detection overhead of the terminal device 120.

[0165] In one possible implementation, the first time is a time indicated by the first MIB, and the second MIB indicates that the first cell schedules the aforementioned control signaling. Correspondingly, the first time is a time when the first cell switches from the first state to the third state.

[0166] For example, the network device 110 determines that the first cell is in the first state in a first time period and in the third state in a second time period. Therefore, the network device 110 determines a difference between the first time period and the second time period, and the difference between the first time period and the second time period is the first time described above. Accordingly, the network device 110 indicates, to the terminal device 120 through the first MIB, a time required for the first cell to switch from the first state to the third state, and the terminal device 120 performs the receiving of the second MIB according to the first time.

[0167] In this way, the detection power consumption of the terminal device 120 can be effectively reduced. For example, after receiving the first MIB, the terminal device 120 detects or receives the second MIB according to the first time, and does not need to detect or receive other MIBs in other time periods.

[0168] The association between the second MIB and the first MIB can be seen from FIG. 4.

[0169] FIG. 4 is a schematic diagram of the relationship between the first MIB and the second MIB according to an embodiment of the present application. As shown in FIG. 4, the terminal device 120 receives the first MIB at a first time, and the terminal device 120 receives the second MIB at a second time, and the difference between the first time and the second time is the first time. The first time can be predefined, that is, the terminal device 120 needs to periodically (the first time can be the detection period) detect the second MIB, or the first time is indicated by the network device 110, and the terminal device 120 can detect the second MIB according to the time indicated by the network device 110, which can support reducing the power consumption of the terminal device 120.

[0170] In one possible implementation, the first value belongs to the first value range, and the difference between the first value and the start value of the first value range indicates the detection period of the MIB (that is, receiving or detecting an MIB at a certain time), or the difference between the first value and the start value of the first value range indicates the time required for the first cell to switch from the first state to the third state.

[0171] Taking FR1 as an example, the first value range is 24-29, the first value is 25, and the difference 1 between 25 and 24 can represent that the detection period of the MIB is 1 second, or the difference 1 between 25 and 24 can represent that the time required for the first cell to switch from the first state to the third state is 1 second. When the first value is 26, the difference 2 between 26 and 24 can represent that the detection period of the MIB is 2 seconds, or the difference 2 between 26 and 24 can represent that the time required for the first cell to switch from the first state to the third state is 2 seconds.

[0172] For example, the first value range is 12-13, and when the first value is 13, the difference between 13 and 12, i.e., 1, can indicate that the detection period of the MIB is 1 second, or the difference between 13 and 12, i.e., 1, can indicate that the time required for the first cell to switch from the first state to the third state is 1 second.

[0173] In this way, the terminal device 120 can determine the time for receiving the second MIB according to the difference between the first value and the start value in the first value range, which can support reducing the detection overhead of the terminal device 120. For example, after receiving the first MIB, the terminal device 120 detects or receives the second MIB according to the first time, and does not need to detect or receive other MIBs in other time periods.

[0174] In one possible implementation, the first value belongs to the first value range, and the difference between the first value and the end value of the first value range indicates the detection period of the MIB (i.e., receiving or detecting an MIB at a certain time interval), or the difference between the first value and the start value of the first value range indicates the time for the first cell to switch from the first state to the third state.

[0175] For example, the first value range is 24-29, and when the first value is 25, the difference between 25 and 29, i.e., 4, can indicate that the detection period of the MIB is 4 seconds, or the difference between 25 and 29, i.e., 4, can indicate that the time required for the first cell to switch from the first state to the third state is 4 seconds. When the first value is 26, the difference between 26 and 29, i.e., 3, can indicate that the detection period of the MIB is 3 seconds, or the difference between 26 and 29, i.e., 3, can indicate that the time required for the first cell to switch from the first state to the third state is 3 seconds.

[0176] In this way, the terminal device 120 can determine the time for receiving the second MIB according to the difference between the first value and the end value in the first value range, which can support reducing the detection overhead of the terminal device 120. For example, after receiving the first MIB, the terminal device 120 detects or receives the second MIB according to the first time, and does not need to detect or receive other MIBs in other time periods.

[0177] In one possible implementation, the first value can also indicate the first time. The relationship between the first value and the first time can be seen from Table 3. The content shown in Table 3 is only an example and is not limited.

[0178] Table 3

[0179] As shown in Table 3:

[0180] The first value is value 1, which indicates time 1. For example, value 1 is 25, and time 1 is 2 seconds.

[0181] o the first value is value 2, which indicates time 2. For example, value 2 is 26, and time 1 is 4 seconds.

[0182] o the first value is value 3, which indicates time 3. For example, value 3 is 27, and time 1 is 7 seconds.

[0183] In this way, the terminal device 120 can determine, according to the first value, that the first cell will not schedule control signaling, the state in which the first cell is located, and the time of receiving the second MIB, which can reduce the signaling overhead for indicating the first time.

[0184] In summary, by defining the state in which the first cell is located and indicating the state in which the first cell is located, the terminal device can determine, when the first cell will not schedule control signaling, whether the cell reselection is needed according to the state in which the first cell is located, which is beneficial to reduce the frequency of cell reselection of the terminal device, thereby effectively reducing the power consumption of the terminal device.

[0185] The following describes a device embodiment corresponding to the method embodiment of the present application. In the following, only the device is briefly introduced, and the specific implementation steps and details of the scheme can be referred to the foregoing method embodiments.

[0186] To implement the functions in the method provided in the present application, the terminal device and the network device can each include a hardware structure and / or a software module, to implement the above functions in the form of hardware structure, software module, or hardware structure plus software module. Whether a certain function in the above functions is implemented in the form of hardware structure, software module, or hardware structure plus software module depends on the specific application of the technical solution and the design constraint conditions.

[0187] FIG. 5 is a schematic block diagram of a communication device according to an embodiment of the present application. The communication device includes a processor 510 and a communication interface 520, which can be connected to each other through a bus 530. The communication device can be the terminal device 120 or the network device 110.

[0188] Optionally, the communication device can further include a memory 540. The memory 540 includes, but is not limited to, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), or a compact disc read-only memory (CD-ROM), which is used for related instructions and data.

[0189] The processor 510 can be one or more central processing units (CPUs). In the case where the processor 510 is a CPU, the CPU can be a single-core CPU or a multi-core CPU.

[0190] The processor 510 can be a signal processor, a chip, or other integrated circuit that can implement the method of the present application, or a part of the foregoing processor, chip, or integrated circuit for processing functions. In addition, the communication interface 520 can also be an input / output interface for input or output of signals or data, or an input / output circuit.

[0191] When the communication apparatus is the terminal device 120, the processor 510 is configured to perform the following operations, for example: receiving the first MIB; determining whether to continue camping on the first cell according to the state in which the first cell is located, and the like.

[0192] When the communication apparatus is the network device 110, the processor 510 is configured to perform the following operations, for example: determining the first MIB; and transmitting the first MIB to the terminal device 120, and the like.

[0193] The foregoing description is only exemplary. When the communication apparatus is the terminal device 120 or the network device 110, it will be responsible for performing the methods or steps related to the terminal device 120 or the network device 110 in the foregoing method embodiments.

[0194] When the communication apparatus is the terminal device 120 or the network device 110, the communication interface 520 can also be referred to as a transceiver. The foregoing description is only exemplary. For specific content, refer to the content shown in the foregoing method embodiments.

[0195] The implementation of each operation in FIG. 5 can also correspond to the description of the corresponding method embodiments shown in FIGS. 3 to 4.

[0196] FIG. 6 is a schematic block diagram of another communication apparatus according to an embodiment of the present application. The communication apparatus can be the terminal device 120 or the network device 110, or a chip or module in the terminal device 120 or the network device 110, and is configured to implement the method according to the foregoing embodiments. The communication apparatus includes an interface unit 610 and a processing unit 620. The interface unit 610 and the processing unit 620 are described below.

[0197] The interface unit 610 can include a sending unit and a receiving unit. The sending unit is configured to perform the sending action of the communication apparatus, and the receiving unit is configured to perform the receiving action of the communication apparatus. For ease of description, the sending unit and the receiving unit are combined into one interface unit in the embodiments of the present application. This is uniformly described here, and will not be described again hereinafter.

[0198] When the communication apparatus is the terminal device 120, the interface unit 610 is configured to receive the first MIB, etc. The processing unit 620 is configured to perform the content related to the processing, coordination, etc. of the terminal device 120. For example, determining whether to continue camping on the first cell according to the state of the first cell, etc.

[0199] When the communication apparatus is the network device 110, the interface unit 610 is configured to send the first MIB, etc. to the terminal device 120. The processing unit 620 is configured to perform the content related to the processing, coordination, etc. of the network device 110. For example, determining the first MIB, etc.

[0200] The above-mentioned content is only described as an example. When the communication apparatus is the terminal device 120 or the network device 110, it will be responsible for performing the method or steps related to the terminal device 120 or the network device 110 in the foregoing method embodiments.

[0201] Optionally, the communication apparatus further comprises a storage unit 630 configured to store programs or codes for executing the foregoing methods.

[0202] The apparatus embodiments shown in FIG. 5 and FIG. 6 are used to implement the content described in FIG. 3 to FIG. 4. The specific execution steps of the apparatus shown in FIG. 5 and FIG. 6 can refer to the content described in the foregoing method embodiments.

[0203] The present application also provides a chip comprising a processor, which is configured to call and run instructions stored in a memory, so that a communication device installed with the chip executes the method in each of the examples described above.

[0204] The present application also provides another chip comprising an input interface, an output interface, and a processor, which are connected through internal connection paths. The processor is configured to execute codes in a memory, and when the codes are executed, the processor is configured to execute the method in each of the examples described above. Optionally, the chip further comprises a memory configured to store computer programs or codes.

[0205] The present application also provides a processor configured to be coupled with a memory, and configured to execute the method and functions related to the network device or the terminal device in any of the embodiments described above.

[0206] In another embodiment of the present application, a computer program product comprising instructions is provided, and when the computer program product is run on a computer, the method of the foregoing embodiments is implemented.

[0207] The present application also provides a computer program, and when the computer program is run on a computer, the method of the foregoing embodiments is implemented.

[0208] In another embodiment of the present application, a computer readable storage medium is provided, which stores a computer program. The computer program is executed by a computer to implement the method of the foregoing embodiments.

[0209] Those skilled in the art can clearly understand that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0210] Those skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working processes of the above-described system, device and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

[0211] In several embodiments provided in the present application, the disclosed system, device and method can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms.

[0212] The units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the technical solutions of the embodiments.

[0213] In addition, each functional unit in each embodiment of the present application can be integrated into a processing unit, or each unit can exist physically, or two or more units can be integrated into one unit.

[0214] If the functions are implemented in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present application can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a ROM, a RAM, a magnetic disk or an optical disk, and various storage program codes.

[0215] The above is only a specific implementation of the embodiments of the present application, but the protection scope of the embodiments of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the embodiments of the present application, which should be covered within the protection scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application should be subject to the protection scope of the claims.

Claims

1. A communication method characterized by comprising: The method comprises: receiving a first master information block (MIB), the first MIB indicating that a first cell does not schedule control signaling and a state of the first cell, the control signaling being used to schedule system messages, the system messages indicating information used to access the first cell; and determining whether to continue camping on the first cell according to the state of the first cell.

2. The method of claim 1, wherein, The state of the first cell is a temporarily forbidden access state.

3. The method of claim 2, wherein, The method further comprises: receiving a second MIB, the second MIB indicating whether the first cell schedules the control signaling; wherein a first time is between a receiving time of the first MIB and a receiving time of the second MIB.

4. The method of claim 3, wherein, The first time is indicated by the first MIB, the second MIB indicates that the first cell schedules the control signaling, and the first time is a time for the first cell to switch from the temporarily forbidden access state to an allowed access state.

5. The method of claim 3, wherein, The first time is preconfigured.

6. The method according to any one of claims 1 to 5, characterized in that, The first MIB comprises a parameter, a first value of the parameter indicating that the first cell does not schedule the control signaling and the state of the first cell.

7. The method of claim 6, wherein, The first value of the parameter indicates that the first cell is in the temporarily forbidden access state, and the first value belongs to a first value range, a difference between the first value and a start value of the first value range indicates a detection period of MIB, or a difference between the first value and a start value of the first value range indicates a time for the first cell to switch from the temporarily forbidden access state to an allowed access state.

8. The method according to claim 6 or 7, characterized in that, The parameter is K 同步信号块SSB , the K 同步信号块SSB is used to indicate the number of subcarriers between subcarrier 0 to subcarrier 0 of SSB.

9. The method of claim 1, wherein, The state of the first cell is a forbidden access state.

10. A communication method characterized by comprising: The method comprises: determining a first master information block (MIB), the first MIB indicating that a first cell does not schedule control signaling and a state of the first cell, the control signaling being used to schedule system messages, the system messages indicating information used to access the first cell, the state of the first cell being used to determine whether to continue camping on the first cell; sending the first MIB.

11. The method of claim 10, wherein, The state of the first cell is a temporarily forbidden access state.

12. The method of claim 11, wherein, The method further comprises: sending a second MIB, the second MIB indicating whether the first cell schedules the control signaling; wherein a first time is between a receiving time of the first MIB and a receiving time of the second MIB.

13. The method of claim 12, wherein, The first time is indicated by the first MIB, the second MIB indicates that the first cell schedules the control signaling, and the first time is a time for the first cell to switch from the temporarily forbidden access state to an allowed access state.

14. The method of claim 12, wherein, The first time is preconfigured.

15. The method according to any one of claims 10 to 14, characterized in that, The first MIB comprises a parameter, a first value of the parameter indicating that the first cell does not schedule the control signaling and the state of the first cell.

16. The method of claim 15, wherein, The first value of the parameter indicates that the first cell is in a first state, and the first value belongs to a first value range, a difference between the first value and a start value of the first value range indicates a detection period of MIB, or a difference between the first value and a start value of the first value range indicates a time for the first cell to switch from the temporarily forbidden access state to an allowed access state. A difference between the first value and a start value of the first value range indicates a time for the first cell to switch from the temporarily barred state to an allowed state.

17. The method according to claim 15 or 16, characterized in that, The parameter is K 同步信号块SSB , the K 同步信号块SSB is used to indicate the number of subcarriers between subcarrier 0 to subcarrier 0 of SSB.

18. The method of claim 10, wherein, The state of the first cell is a barred state.

19. A communications device, characterized by The communication device further comprises a memory for storing the computer program or the instructions.

20. The communication apparatus according to claim 19, wherein, The communication device further comprises a communication interface for inputting and / or outputting signals.

21. The communication apparatus according to claim 19 or 20, wherein, The logic circuit and the input / output interface are configured to perform the method of any one of claims 1-18.

22. A communications device, characterized by The computer readable storage medium has stored thereon computer programs or instructions which, when executed on a computer, cause the method of any one of claims 1-18 to be performed.

23. A computer-readable storage medium, characterized in that, The computer readable storage medium has stored thereon computer programs or instructions which, when executed on a computer, cause the method of any one of claims 1-18 to be performed.

24. A computer program product, characterised in that, The chip is installed in a communication device, and the chip comprises a processor and a communication interface, the processor reads instructions and runs through the communication interface, so that the communication device performs the method of any one of claims 1-18.

25. A chip, characterized by The transceiver unit is configured to receive a first master information block (MIB), the first MIB indicating that a first cell does not schedule control signaling and a state of the first cell, the control signaling being used to schedule system messages, the system messages indicating information for accessing the first cell.

26. A communications device, characterized by The processing unit is configured to determine whether to continue camping on the first cell according to the state of the first cell. The state of the first cell is a temporarily barred state.

28. The apparatus of claim 27, wherein The transceiver unit is configured to receive a second MIB, the second MIB indicating whether the first cell schedules the control signaling.

27. The apparatus of claim 26, wherein, The first time is indicated by the first MIB, the second MIB indicates that the first cell schedules the control signaling, and the first time is a time for the first cell to switch from the temporarily barred state to an allowed state. The first time is preconfigured. The first MIB comprises a parameter, a first value of the parameter indicating that the first cell does not schedule the control signaling and the state of the first cell. The first value of the parameter indicates that the first cell is in a temporarily barred state, and the first value belongs to a first value range, 29. The apparatus of claim 28, wherein, A difference between the first value and a start value of the first value range indicates a detection period of the MIB, or 30. The apparatus of claim 28, wherein, A difference between the first value and a start value of the first value range indicates a detection period of the MIB, or 31. The apparatus of any one of claims 26-30, wherein, ​ 32. The apparatus of claim 31, wherein, ​ ​ A difference between the first value and a start value of the first value range indicates a time for the first cell to switch from the temporarily barred state to an allowed state.

33. The apparatus of claim 31 or 32, wherein, The parameter is K 同步信号块SSB , the K 同步信号块SSB is used to indicate the number of subcarriers between subcarrier 0 to subcarrier 0 of SSB.

34. The apparatus of claim 26, wherein, The state of the first cell is a barred state.

35. A communications device, characterized by Comprise: A processing unit, configured to determine a first master information block (MIB), the first MIB indicating that a first cell does not schedule control signaling and a state of the first cell, the control signaling being used to schedule a system message, the system message indicating information used to access the first cell, and the state of the first cell being used to determine whether to continue camping on the first cell; A transceiver, configured to send the first MIB.

36. The device of claim 35, wherein, The state of the first cell is a temporarily barred state.

37. The apparatus of claim 36, wherein The transceiver is further configured to send a second MIB, the second MIB indicating whether the first cell schedules the control signaling; The first MIB is received at a first time and the second MIB is received at a second time, and a difference between the first time and the second time is the first time.

38. The device of claim 37, wherein, The first time is indicated by the first MIB, the second MIB indicates that the first cell schedules the control signaling, and the first time is a time for the first cell to switch from the temporarily barred state to an allowed state.

39. The device of claim 37, wherein, The first time is preconfigured.

40. The apparatus of any one of claims 35-39, wherein, The first MIB comprises a parameter, a first value of the parameter indicating that the first cell does not schedule the control signaling and the state of the first cell.

41. The device of claim 40, wherein, The first value of the parameter indicates that the first cell is in a first state, and the first value belongs to a first value range, The difference between the first value and a start value of the first value range indicates a detection period of the MIB, or The difference between the first value and a start value of the first value range indicates a time for the first cell to switch from the temporarily barred state to an allowed state.

42. The device of claim 40 or 41, wherein, The parameter is K 同步信号块SSB , the K 同步信号块SSB is used to indicate the number of subcarriers between subcarrier 0 of the common resource block and subcarrier 0 of the SSB.

43. The device of claim 35, wherein, The state of the first cell is a barred state.

Images