Communication method and communication apparatus

Abstract

The present application provides a communication method and a communication apparatus. A first apparatus respectively configures a plurality of sets of cell common parameters for terminals, which are served by different PLMNs, in a first cell, and the different PLMNs in the first cell share access network resources. Therefore, by means of the method, different cell common parameters can be configured for the terminals served by different PLMNs, and the different cell common parameters are sent to the terminals by means of signaling, thereby providing differentiated cell configurations for the terminals, which are served by different PLMNs and share the access network resources, in the first cell.

Description

Communication method and communication device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on February 27, 2024, with application number 202410216769.0 and application name “A Communication Method and Communication Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a communication method and a communication device. Background Art

[0003] Radio access network (RAN) sharing refers to the collaboration or sharing of telecommunications network infrastructure or network equipment. RAN sharing offers a network construction method that reduces deployment costs and expands network service coverage. For example, different operators can share the same set of RAN resources, eliminating the need to deploy their own RAN equipment in every region, reducing construction and operation and maintenance costs. However, when implementing shared cells between different operators, due to differences in service requirements and different resource requirements in different geographic areas, how to allocate shared RAN resources to different operators becomes an unresolved issue. Summary of the Invention

[0004] The present application provides a communication method and a communication device, which configure shared access network resources to users through signaling, so that terminals served by different public land mobile networks (PLMNs) can obtain differentiated access network resources.

[0005] In a first aspect, the present application provides a communication method, which is performed by a first device. For example, the first device can be a network device (such as a satellite, base station, etc.), or a component of the network device (such as a processor, chip, or chip system, etc.), or a logical module that can implement all or part of the functions of the network device. The first device configures multiple sets of cell common parameters for terminals served by different public land mobile networks (PLMNs) in a first cell, and different PLMNs in the first cell share access network resources. The first device sends multiple sets of cell common parameters.

[0006] In this method, the first device can configure different cell common parameters for terminals served by different PLMNs (also known as terminals belonging to different operators), and send the different cell common parameters to the terminals through signaling, thereby providing differentiated cell configurations for terminals served by different PLMNs in a shared cell.

[0007] In a possible implementation, the first device sends a first system message of the first cell, where the first system message includes multiple sets of cell common parameters.

[0008] In this embodiment, the first system message of the first cell (such as system information blocks (SIB), specifically SIB1) can carry multiple sets of cell common parameters for different PLMNs. The first device only needs to send SIB1, which is conducive to reducing signaling overhead.

[0009] In a possible implementation, the first device schedules at least one second system message in the first cell, where the at least one second system message is used to indicate a corresponding cell common parameter.

[0010] In this implementation, the first device may schedule at least one second system message (eg, different SIBs designed for different PLMNs) through SIB1, thereby indicating cell common parameters corresponding to different PLMNs.

[0011] In one possible implementation, the first device configures multiple physical downlink control channel (PDCCH) search spaces, the multiple PDCCH search spaces including multiple control information, and the multiple control information is used for the terminal to receive corresponding cell common parameters;

[0012] In a possible implementation, the first device sends a first physical downlink control channel scrambled by a system information radio network temporary identity (SI-RNTI), where the first physical downlink control channel is used to indicate multiple sets of cell common parameters.

[0013] In the above embodiment, the first device issues multiple sets of SIB1s, and the multiple sets of SIB1s can configure multiple PDCCH search spaces through the management information block (MIB), so that terminals served by different PLMNs can retrieve control information in the corresponding search space, thereby receiving the corresponding cell common parameters; or, the multiple sets of SIB1s can be scheduled through the PDCCH encrypted with SI-RNTI, and the PDCCH indicates multiple sets of cell common parameters corresponding to terminals served by different PLMNs.

[0014] In a possible implementation, the first device sends first indication information, where the first indication information is used to indicate one or more random access resources allocated to terminals served by different PLMNs in the first cell.

[0015] In a possible implementation, any one of the one or more random access resources is exclusively used by one network or shared by multiple networks.

[0016] In the above implementation, the first device may configure different random access resources for terminals served by different PLMNs, thereby providing differentiated access capacities in a shared cell and optimizing resource allocation.

[0017] In a possible implementation, the first device configures multiple sets of mobility management parameters for terminals served by different PLMNs in the first cell, and sends the multiple sets of mobility management parameters.

[0018] In this implementation, the first device may configure different mobility management parameters (eg, paging configuration parameters, etc.) for terminals served by different PLMNs, thereby providing differentiated paging resources in a shared cell and optimizing resource allocation.

[0019] In a possible implementation, the first device sends a first system message of the first cell, where the first system message includes multiple sets of mobility management parameters.

[0020] In this implementation, the first system message (eg, SIB1) of the first cell may carry multiple sets of mobility management parameters for different PLMNs. The first device only needs to send SIB1, which is beneficial to reducing signaling overhead.

[0021] In a possible implementation, the first device sends a paging message in different system frames, and different system frames are associated with different PLMNs.

[0022] In a possible implementation, the first device sends a second physical downlink control channel scrambled by a paging radio network temporary identifier (P-RNTI), where the second physical downlink control channel is used to indicate multiple sets of mobility management parameters.

[0023] In the above embodiment, the first device can send paging messages in different system frames or schedule multiple sets of mobility management parameters corresponding to terminals served by different PLMNs through PDCCH encrypted by P-RNTI, so that terminals served by different PLMNs can obtain differentiated paging message reception methods.

[0024] In a possible implementation, the first device sends a paging message, where the paging message includes a first identifier, where the first identifier is used to indicate terminals in the first cell that are served by different PLMNs and have the same user identifier.

[0025] In this embodiment, when the paging configuration within the shared cell is consistent, the first device can add an additional PLMN identifier or other incremental indication in the paging message to distinguish terminals served by different PLMNs and with the same user identifier, thereby avoiding erroneous data transmission in subsequent data transmission processes.

[0026] In a possible implementation, the first device configures multiple sets of cell measurement parameters for terminals served by different PLMNs in the first cell, and sends the multiple sets of cell measurement parameters.

[0027] In this implementation, the first device may configure different cell measurement parameters for terminals served by different PLMNs, which is beneficial for terminals served by different PLMNs to be able to perform cell measurement and reselect to corresponding dedicated networks.

[0028] In the second aspect, the present application provides a communication method, which is performed by a second device. For example, the second device can be a terminal (such as a tag, etc.), or a terminal or a communication module in the terminal, or a circuit or chip in the terminal responsible for the communication function (such as a modem chip, also known as a baseband chip, or a system on chip (SoC) chip or system in package (SIP) chip containing a modem core). The second device receives multiple sets of cell common parameters configured by the first device for terminals served by different PLMNs in the first cell, and different PLMNs in the first cell share access network resources. The second device configures the corresponding cell common parameters.

[0029] In this method, the second device can receive the signaling sent by the first device, thereby obtaining different cell common parameters and realizing differentiated cell configuration of terminals served by different PLMNs in a shared cell.

[0030] In a possible implementation, the second device receives a first system message of a first cell, where the first system message includes the multiple sets of cell common parameters.

[0031] In this implementation, the second device can obtain multiple sets of cell common parameters for different PLMNs by receiving the first system message (such as SIB1) of the first cell, which is beneficial to reducing signaling overhead.

[0032] In a possible implementation, the second device obtains at least one second system message through the first system message of the first cell, where the at least one second system message is used to indicate a corresponding cell common parameter.

[0033] In this implementation, the second device may obtain the cell common parameters corresponding to different PLMNs by receiving at least one second system message (such as different SIBs designed for different PLMNs).

[0034] In a possible implementation, the second device searches for corresponding control information in multiple physical downlink control channel search spaces and receives corresponding cell common parameters.

[0035] In a possible implementation, the second device receives a first physical downlink control channel scrambled by a system information radio network temporary identifier SI-RNTI, where the first physical downlink control channel is used to indicate the multiple sets of cell common parameters.

[0036] In the above embodiment, the second device can receive multiple sets of SIB1s, and the multiple sets of SIB1s can configure multiple PDCCH search spaces through MIB, so that terminals served by different PLMNs can retrieve control information in the corresponding search space, thereby receiving the corresponding cell common parameters; or, the multiple sets of SIB1s can be scheduled through PDCCH encrypted by SI-RNTI.

[0037] In a possible implementation, the second device receives first indication information, where the first indication information is used to indicate one or more random access resources allocated to terminals served by different PLMNs in the first cell.

[0038] In a possible implementation, any one of the one or more random access resources is exclusively used by one network or shared by multiple networks.

[0039] In the above implementation, the second device can receive different random access resources, thereby achieving differentiated access capacity in the shared cell and optimizing resource allocation.

[0040] In a possible implementation, the second device receives multiple sets of mobility management parameters configured by the first device for terminals served by different PLMNs in the first cell, and the second device configures the corresponding mobility management parameters.

[0041] In this embodiment, terminals served by different PLMNs may be configured with different mobility management parameters (eg, paging configuration parameters, etc.), thereby achieving differentiated paging resource allocation in a shared cell.

[0042] In a possible implementation, the second device receives a first system message from a first cell, where the first system message includes multiple sets of mobility management parameters.

[0043] In this implementation, the first system message (eg, SIB1) of the first cell may carry multiple sets of mobility management parameters for different PLMNs. The second device receives SIB1 and may obtain corresponding mobility management parameters.

[0044] In a possible implementation, the second device searches for a paging message in a system frame whose system frame number meets a first condition, and different system frames are associated with different PLMNs.

[0045] In a possible implementation, the second device receives a second physical downlink control channel scrambled by a paging radio network temporary identifier P-RNTI, where the second physical downlink control channel is used to indicate multiple sets of mobility management parameters.

[0046] In the above implementation, the second device may receive a paging message or a second physical downlink control channel scrambled by a P-RNTI in different system frames, thereby acquiring corresponding mobility management parameters.

[0047] In a possible implementation, the second device receives a paging message, where the paging message includes a first identifier, where the first identifier is used to indicate terminals in the first cell that are served by different PLMNs and have the same user identifier.

[0048] In this embodiment, when the paging configurations in the shared cell are consistent, the second device adds a PLMN identifier or other incremental indication to the paging message, thereby distinguishing the paging message corresponding to the second device.

[0049] In a possible implementation, the second device receives multiple sets of cell measurement parameters configured by the first device for terminals served by different PLMNs in the first cell, and configures the corresponding cell measurement parameters.

[0050] In this implementation, the second device may receive and configure corresponding cell measurement parameters, which is beneficial for terminals served by different PLMNs to be able to perform cell measurement and reselect to the corresponding dedicated network.

[0051] In a third aspect, the present application provides a communication device. The communication device may be a network device, or a component of a network device (such as a processor, a chip, or a chip system, etc.), or a device that can be used in conjunction with a network device. In one possible implementation, the communication device has the function of implementing the above-mentioned first aspect. For example, the communication device includes a module or unit or means corresponding to the operation involved in the above-mentioned first aspect. The module or unit or means can be implemented specifically through software, or through hardware, or through a combination of software and hardware.

[0052] In one possible implementation, the communication device includes a communication unit and a processing unit. The processing unit is configured to configure multiple sets of cell-common parameters for terminals served by different PLMNs in a first cell, where different PLMNs in the first cell share access network resources. The communication unit is configured to send the multiple sets of cell-common parameters.

[0053] In this embodiment, the communication device can configure different cell common parameters for terminals served by different PLMNs, and send the different cell common parameters to the terminals through signaling, thereby providing differentiated cell configurations for terminals served by different PLMNs in a shared cell.

[0054] Optionally, other possible implementations in the third aspect can refer to the corresponding descriptions of other possible implementations in the first aspect, and will not be repeated here.

[0055] In a fourth aspect, the present application provides a communication device. The communication device may be a terminal, or a component of a terminal (such as a processor, a chip, or a chip system, etc.), or a device that can be used in conjunction with a terminal. In one possible implementation, the communication device has the function of implementing the second aspect above. For example, the communication device includes a module or unit or means corresponding to the operation involved in the second aspect above. The module or unit or means can be implemented by software, or by hardware, or by a combination of software and hardware.

[0056] In one possible implementation, the communication device includes a communication unit and a processing unit. The communication unit is configured to receive multiple sets of cell-common parameters configured by a first device for terminals served by different PLMNs in a first cell, where the different PLMNs in the first cell share access network resources. The processing unit is configured to configure the corresponding cell-common parameters.

[0057] In this implementation, the communication device may receive signaling sent by the first device, thereby obtaining different cell common parameters, and implementing differentiated cell configurations for terminals served by different PLMNs in a shared cell.

[0058] Optionally, other possible implementations of the fourth aspect can refer to the corresponding descriptions of other possible implementations of the second aspect, and will not be repeated here.

[0059] In a fifth aspect, the present application provides a communication device comprising a memory and one or more processors. The memory is used to store part or all of the necessary computer programs or instructions for implementing the functions involved in at least one of the first and second aspects above. The one or more processors can execute the computer programs or instructions. When the computer programs or instructions are executed, the communication device implements at least one of the following: the method in the first aspect and any possible implementation of the first aspect, and the method in the second aspect and any possible implementation of the second aspect.

[0060] In one possible design, the communication device may further include an interface circuit, wherein the processor is configured to communicate with other devices or components through the interface circuit.

[0061] In one possible design, the communication device may further include a memory.

[0062] In one possible design, the communication device may be a terminal, or a communication module in a terminal, or a chip in the terminal responsible for communication functions such as a modem chip or a SoC or SIP chip including a modem module.

[0063] In a sixth aspect, the present application provides a communication device comprising: a processor and an interface circuit, the interface circuit being used to receive signals from other communication devices and transmit them to the processor or to send signals from the processor to other communication devices, the processor being used to implement at least one of the following through logic circuits or execution code instructions: the method in the first aspect and any possible implementation of the first aspect, the method in the second aspect and any possible implementation of the second aspect.

[0064] In the seventh aspect, the present application provides a communication system, which includes at least one device or equipment among the third to sixth aspects above, so that the at least one device or equipment above performs at least one of the following: the method in the first aspect and any possible implementation of the first aspect, the method in the second aspect and any possible implementation of the second aspect.

[0065] In an eighth aspect, the present application provides a computer-readable storage medium storing instructions, which, when executed on a computer, causes the computer to execute at least one of the following: the method in the first aspect and any possible implementation of the first aspect, the method in the second aspect and any possible implementation of the second aspect.

[0066] In a ninth aspect, the present application provides a computer program product comprising instructions, which, when executed on a computer, cause the computer to execute at least one of the following: the method of the first aspect and any possible implementation of the first aspect, the method of the second aspect and any possible implementation of the second aspect.

[0067] In a tenth aspect, the present application provides a chip comprising a processor (or a logic circuit). Optionally, the chip may further comprise a communication interface (or interface) for implementing at least one of the following: the method in the first aspect and any possible implementation of the first aspect, the method in the second aspect and any possible implementation of the second aspect. In one possible implementation, if the chip is the smallest processing unit in the entire machine, the chip may be a processor, or may comprise a processor and a memory, or may comprise a processor, a memory, and a transceiver, for implementing at least one of the following: the method in the first aspect and any possible implementation of the first aspect, the method in the second aspect and any possible implementation of the second aspect.

[0068] In an eleventh aspect, the present application provides a chip system. The chip system includes a processor and an interface. Optionally, the chip system may also include a memory for implementing at least one of the following: the method in the first aspect and any possible implementation of the first aspect, and the method in the second aspect and any possible implementation of the second aspect. The chip system may be composed of a chip or may include a chip and other discrete components. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] FIG1 is a schematic diagram of a network architecture provided by this application;

[0070] FIG2 is a flow chart of a communication method provided by the present application;

[0071] FIG3 is a schematic diagram of a first apparatus configured with multiple PDCCH search spaces and an indication method provided by the present application;

[0072] FIG4 is a schematic diagram of scheduling multiple sets of cell common parameters through PDCCH scrambled by SI-RNTI provided by the present application;

[0073] FIG5 is a schematic diagram of a mapping relationship between synchronization signal blocks and RO resources provided by the present application;

[0074] FIG6 is a schematic diagram of a communication device provided by the present application;

[0075] FIG7 is a schematic diagram of another communication device provided in this application. DETAILED DESCRIPTION

[0076] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0077] For ease of understanding, the following is a detailed introduction to the definitions of relevant terms involved in this application:

[0078] 1. Network architecture:

[0079] For example, the communication method provided in this application can be applied to the network architecture shown in Figure 1. The network architecture shown in Figure 1 includes devices or functional network elements such as terminals, access network devices, and core network elements. It will be understood that Figure 1 is only an example and only shows some devices or functional network elements (for example, more terminals and / or access network devices may be included, and the form of access network devices may not be limited to satellites, etc.). This application does not limit the network architecture to which the communication method is applied.

[0080] Among them, the access network device is a device with wireless transceiver functions, which is used to communicate with the terminal device. For example, the access network device is a radio access network (RAN) node that connects the terminal device to the wireless network. RAN nodes include, but are not limited to: gNB, transmission reception point (TRP), evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved NodeB, or home Node B, HNB), base band unit (BBU), or wireless fidelity (Wifi) access point (AP), integrated access and backhaul (IAB) equipment, satellite, etc. It is understood that when the access network device is a satellite, the ground station supporting the satellite can also be considered as part of the access network device.

[0081] Access network devices can communicate and interact with core network devices to provide communication services to terminal devices. Core network devices are, for example, devices in the 5G core network (CN). As a bearer network, the core network provides an interface to the data network, providing communication connections, authentication, management, policy control, and data service delivery for terminals.

[0082] A terminal is a device with wireless transceiver capabilities that can send signals to a base station or receive signals from a base station. A terminal may also be referred to as a terminal device, user equipment (UE), mobile station, mobile terminal, etc. Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearable, smart transportation, smart city, etc. A terminal can be a mobile phone, tablet computer, computer with wireless transceiver capabilities, wearable device, vehicle, airplane, ship, robot, robotic arm, smart home device, etc. The embodiments of this application do not limit the specific technology and specific device form adopted by the terminal.

[0083] Base stations and terminals can be fixed or mobile. They can be deployed on land, indoors or outdoors, handheld or vehicle-mounted; on water; or on aircraft, balloons, and satellites. The embodiments of this application do not limit the application scenarios of base stations and terminals.

[0084] In this application, the functions of the base station can also be performed by a module in the base station (such as a chip), or by a control subsystem that includes the base station function. The control subsystem that includes the base station function here can be the control center in the above-mentioned application scenarios such as smart grid, industrial control, smart transportation, and smart city. The functions of the terminal can also be performed by a module in the terminal (such as a chip or modem), or by a device that includes the terminal function.

[0085] In this application, a base station sends downlink signals or downlink information to a terminal, and the downlink information is carried on a downlink channel; the terminal sends uplink signals or uplink information to the base station, and the uplink information is carried on an uplink channel. In order to communicate with the base station, the terminal needs to establish a wireless connection in the cell controlled by the base station. The cell with which the terminal has established a wireless connection is called the serving cell of the terminal. When the terminal communicates with the serving cell, it will also be interfered with by signals from neighboring cells.

[0086] 2. Non-terrestrial networks (NTN):

[0087] NTN, which includes nodes such as satellite networks, high-altitude platforms, and drones, boasts significant advantages, including global coverage, long-distance transmission, flexible networking, easy deployment, and unrestricted geographic presence. It has been widely adopted in a variety of fields, including maritime communications, positioning and navigation, disaster relief, scientific experiments, video broadcasting, and Earth observation. The integration of terrestrial 5G networks and satellite networks, leveraging their strengths and complementing their weaknesses, will form a seamless, integrated global communications network covering land, sea, air, space, and ground, meeting the diverse service needs of users.

[0088] As an important component of the NTN, the next-generation satellite network generally shows an ultra-dense and heterogeneous trend: First, the scale of the satellite network has grown from 66 satellites in the Iridium constellation to 720 satellites in the OneWeb constellation, and will eventually extend to the Starlink ultra-dense LEO satellite constellation of more than 12,000; second, the satellite network shows heterogeneous characteristics, developing from traditional single-layer communication networks to multi-layer communication networks. The functions of communication satellite networks are also becoming more complex and diversified, gradually becoming compatible with and supporting functions such as navigation enhancement, earth observation, and multi-dimensional information on-orbit processing.

[0089] 3. Network sharing:

[0090] Radio Access Network (RAN) sharing refers to the collaboration or sharing of telecommunications network infrastructure or equipment. RAN sharing offers a network construction method that reduces deployment costs and expands network service coverage. For example, different operators can share the same RAN resources, eliminating the need to deploy their own RAN equipment in every region, reducing construction and operation and maintenance costs. Furthermore, in NTN scenarios, the movement of satellite-borne base stations causes their coverage areas to vary globally, allowing one operator's base stations to provide services to users of a competitor. Therefore, the introduction of shared RAN can further increase operator revenue.

[0091] From the perspective of base station resources and spectrum resources, network sharing can be categorized into shared carrier frequency sharing, separate carrier frequency sharing, and hybrid carrier frequency sharing. For example, shared carrier frequency sharing refers to the sharing of RAN resources, including spectrum resources and base station hardware resources, among multiple operators; separate carrier frequency sharing refers to different operators having independent spectrum resources and only sharing base station hardware resources; and hybrid carrier frequency sharing refers to an operator having multiple spectrum resources, with different spectrum resources being shared or used independently by different operators. The network sharing described in this application may include, but is not limited to, the three types of sharing mentioned above.

[0092] The current shared base station deployment method solves the RAN sharing problem. However, considering that different operators share cells, due to differences in service requirements and different resource requirements in different geographical areas, how to allocate shared RAN resources to different operators remains an unresolved issue.

[0093] In order to solve the above problems, the present application provides a communication method, which configures the resources of a shared access network to users through signaling, so that terminals served by different PLMNs can obtain differentiated access network resources.

[0094] For example, Figure 2 is a flow chart of a communication method provided by this application. The method is implemented by interaction between a first device and a second device. For example, the first device is an access network device (such as a base station, satellite, etc.) and the second device is a terminal. The method includes the following steps:

[0095] S101: A first device configures multiple sets of cell common parameters for terminals served by different PLMNs in a first cell.

[0096] Among them, since different operators may provide different end-to-end service quality (QoS) guarantees for users, there may be differences in the air interface configuration, and thus it is necessary to provide differentiated cell configurations for terminals served by different PLMNs in the first cell; among them, different PLMNs represent different operators, and the cell configuration includes cell common parameters. The first cell can also be called a shared cell, indicating that different PLMNs can share the resources of the first cell (such as base station resources, spectrum resources, etc.).

[0097] In one possible implementation, the cell-common parameters may include, but are not limited to, data channel configuration information, control channel configuration information, system messages, and the like. For example, for a terminal served by a first PLMN, the first device may configure first cell-common parameters; for a terminal served by a second PLMN, the first device may configure second cell-common parameters; and for a terminal served by a third PLMN, the first device may configure third cell-common parameters. The first cell-common parameters, the second cell-common parameters, and the third cell-common parameters belong to multiple sets of cell-common parameters, and the first cell-common parameters, the second cell-common parameters, and the third cell-common parameters are different. Optionally, the first cell-common parameters and the second cell-common parameters are different. For example, the first cell-common parameters and the second cell-common parameters may both include control channel configuration information, and the control channel configuration information of the first cell-common parameters is different from the control channel configuration information of the second cell-common parameters. For another example, the second cell-common parameters and the third cell-common parameters may be different. The second cell-common parameters may include control channel configuration information, but the third cell-common parameters do not. The specific implementation is not limited in this application.

[0098] S102, the first device sends multiple sets of cell common parameters; correspondingly, the second device receives the multiple sets of cell common parameters.

[0099] The first device usually sends multiple sets of cell common parameters by broadcasting. For example, the first device broadcasts a system message, and indicates the multiple sets of cell common parameters by the system message.

[0100] In one possible implementation, a first device sends a first system message for a first cell, where the first system message includes multiple sets of cell-common parameters. For example, the first system message is SIB1, and the first device broadcasts SIB1, where the SIB1 carries multiple sets of cell-common parameters for different PLMNs, thereby indicating differentiated cell-common parameters through SIB1.

[0101] In one possible implementation, a first device schedules at least one second system message within a first cell, where the at least one second system message is used to indicate corresponding cell-common parameters. For example, the first device schedules the at least one second system message using system scheduling information (e.g., SI-SchedulingInfo) in SIB1. For example, the at least one second system message may be represented as SIB1_for_PLMNx, where PLMNx represents different PLMNs, such as PLMN1 representing a first PLMN, PLMN2 representing a second PLMN, and so on. The at least one second system message SIB1_for_PLMNx is used to indicate the cell-common parameters of PLMNx.

[0102] In one possible implementation, the first device sends multiple sets of SIB1s, which may be implemented in the following manner:

[0103] The first device configures a plurality of physical downlink control channel search spaces, the plurality of physical downlink control channel search spaces including a plurality of control information, the plurality of control information being used for the terminal to receive corresponding cell common parameters;

[0104] Alternatively, the first device sends a first physical downlink control channel scrambled by a system information radio network temporary identifier SI-RNTI, where the first physical downlink control channel is used to indicate multiple sets of cell common parameters.

[0105] For example, FIG3 is a schematic diagram of a first device provided by the present application configuring multiple PDCCH search spaces and an indication method. Among them, the first device can configure multiple PDCCH search spaces (such as Coreset_PLMN1, Coreset_PLMN2, etc. in FIG3 ) through the physical downlink shared channel (physical downlink shared channel) configuration information (such as pdsch-ConfigSIB1) in the MIB, and the multiple PDCCH search spaces include multiple control information (for example, a PDCCH search space includes the control information corresponding to the PDCCH search space). Multiple control information is used for the terminal to receive the corresponding cell common parameters. For example, terminals served by different PLMNs search for corresponding control information in the corresponding PDCCH search space, thereby receiving SIB1 messages and obtaining corresponding cell common parameters.

[0106] For another example, FIG4 is a schematic diagram of a method provided by the present application for scheduling multiple sets of cell-common parameters through a PDCCH scrambled by SI-RNTI. The first device may send downlink control information (DCI), which may be scrambled by SI-RNTI and carried on a PDCCH, and indicate multiple sets of cell-common parameters (such as cell-common parameters corresponding to SIB1, cell-common parameters corresponding to SIB2, etc.) through the PDCCH. Correspondingly, terminals served by different PLMNs may receive the PDCCH and thereby receive the corresponding cell-common parameters.

[0107] In one example, the first device can also differentially allocate random access resources (such as random occasion (RO) resources) in the first cell so that terminals served by different PLMNs can be allocated one or more random access resources. The following description takes the example of the first cell being shared by two different PLMNs. For example, Figure 5 is a schematic diagram of a mapping relationship between a synchronization signal block (Synchronization Signal / PBCH (physical broadcast channel) Block, SSB) and RO resources provided by this application. Among them, the SSB resources and the RO resources meet the predefined mapping relationship, but the number of users of different PLMNs in the same area is different, then the first device can allocate RO resources differentially, for example, the three RO resources with diagonal shading in Figure 5 are allocated to the first PLMN, and the one RO resource with horizontal shading is allocated to the second PLMN.

[0108] In one possible implementation, a first device sends first indication information, where the first indication information is used to indicate one or more random access resources allocated to terminals served by different PLMNs in a first cell. For example, the first indication information may be implemented as a bitmap to indicate the random access resources allocated to different PLMNs. For example, if the bitmap is represented as 1110, it indicates that the first three RO resources are allocated to the first PLMN and the last RO resource is allocated to the second PLMN. Accordingly, the terminal served by the first PLMN receives the first indication information and uses the corresponding RO resources for random access.

[0109] Optionally, any one of the one or more random access resources may be exclusively used by one network or shared by multiple networks. For example, a single RO resource may be exclusively used by the first PLMN or shared by the first PLMN and the second PLMN (e.g., using time division multiplexing or frequency division multiplexing to achieve RO resource sharing).

[0110] Optionally, an RO resource may include multiple preambles. For example, an RO resource may include up to 64 preambles. The first device may group the multiple preambles (for example, into two groups, each group may include multiple preambles). The first device sends a first indication message, where the first indication message specifically indicates two groups of preambles, one group of preambles being allocated to the first PLMN and the other group of preambles being allocated to the second PLMN. Correspondingly, the terminal served by the first PLMN receives the first indication message, thereby using the corresponding preamble resource for random access.

[0111] In one example, because different PLMNs may have different mobility management policies, the first device may configure differentiated mobility management parameters for different PLMNs in the first cell. For example, the first device may configure multiple sets of mobility management parameters for terminals served by different PLMNs in the first cell, and the first device may send the multiple sets of mobility management parameters. The mobility management parameters may include, but are not limited to, paging configuration information, paging resources, and other parameters. Specifically, paging resources include time domain resources and frequency domain resources used for paging, and the paging configuration information includes information such as a user identifier and a system frame number.

[0112] In one possible implementation, the first device sends a first system message of the first cell, and the first system message includes multiple sets of mobility management parameters. For example, the first system message is SIB1, and the first device broadcasts SIB1, and the SIB1 carries multiple sets of mobility management parameters for different PLMNs (such as multiple sets of paging control channel configurations (PCCH (paging control channel)-Config), thereby indicating differentiated mobility management parameters through SIB1. Optionally, the first system message and the first system message carrying multiple sets of cell common parameters described above can be the same SIB1, that is, the first device broadcasts multiple sets of cell common parameters and multiple sets of mobility management parameters through SIB1; these two first system messages can also be different, that is, the first device broadcasts multiple sets of cell common parameters and multiple sets of mobility management parameters through multiple sets of SIB1, which is not limited in this application.

[0113] In one possible implementation, the first device sends paging messages in different system frames, and the different system frames are associated with different PLMNs. For example, for different PLMNs, the first device can distinguish them through different system frames in the same paging cycle, and send corresponding paging messages in different system frames. Correspondingly, terminals served by different PLMNs retrieve paging messages in system frames whose system frame numbers meet a first condition. The first condition can be expressed as: (SFN+PF_offset) mod T = (T div N) * (UE_ID mod N). Wherein, SFN represents the system frame number; PF_offset represents the frame number offset. Different PLMNs are associated with the nAndPagingFrameOffset parameter in PCCH-Config, that is, PF_offset can indicate different PLMNs; T represents the paging cycle, and UE_ID represents the terminal identifier. The terminal can retrieve the paging message in the system frame whose system frame number meets the above-mentioned first condition, so that terminals served by different PLMNs can receive paging messages in different system frames in the same paging cycle, thereby obtaining corresponding mobility management parameters.

[0114] In one possible implementation, the first device transmits a second physical downlink control channel scrambled by a paging radio network temporary identifier (P-RNTI), where the second physical downlink control channel is used to indicate multiple sets of mobility management parameters. For example, the first device may transmit a DCI scrambled by the P-RNTI, carried on a PDCCH, and used to indicate multiple sets of mobility management parameters (e.g., mobility management parameters corresponding to SIB1, mobility management parameters corresponding to SIB2, etc.) via the PDCCH. Accordingly, terminals served by different PLMNs may receive the PDCCH and thus receive corresponding paging resources.

[0115] In one possible implementation, when the paging configuration of the first cell is consistent, for example, terminals served by different PLMNs in the first cell retrieve paging messages on the same time-frequency domain resources. Since the user identifiers carried in the paging messages may be the same, the present application assumes that a first identifier is added to the paging message, and the first identifier is used to indicate terminals in the first cell that are served by different PLMNs and have the same user identifier. For example, the first device sends a paging message, and the paging message includes the first identifier. Specifically, the first device can broadcast the paging message, thereby broadcasting the first identifier. Correspondingly, the terminal receives the paging message and, based on the first identifier in the paging message, distinguishes whether the paging message is a paging message for the terminal. Optionally, the first identifier may be an identifier of a PLMN, for example, the first identifier is an identifier of a first PLMN, or an identifier of a second PLMN; or, the first identifier may be other incremental indications. For example, assuming that the user identifier carried in the paging message is a 5G-S-TMSI, which is composed of AMF Set ID+AMF Pointer+5G-TMSI, and two terminals served by different PLMNs may be assigned the same 5G-S-TMSI, then the first identifier may be an incremental indication based on the user identifier, which is used to distinguish terminals served by different PLMNs and with the same user identifier in the first cell.

[0116] In one example, when a terminal located in a first cell performs mobility management, it may give priority to selecting a cell that resides on the PLMN serving the terminal. Therefore, the first device may configure different priority parameters in the mobility management parameters. In one possible implementation, the first device configures multiple sets of cell measurement parameters for terminals in the first cell that are served by different PLMNs, and the first device sends multiple sets of cell measurement parameters. The cell measurement parameters may include, but are not limited to, frequency information, priority information, measurement start conditions, and other parameters; the frequency information includes information related to the measurement frequency when the terminal performs mobility management; the priority information is used to instruct the terminal to give priority to selecting a cell that resides on the PLMN serving the terminal when performing mobility management; the measurement start conditions may include, but are not limited to, parameters such as signal strength, user location, and start time. For example, when the signal strength of the terminal is lower than a preset threshold, the terminal may start measurement during mobility management; or, when the user location of the terminal is not within the coverage of the current cell, the terminal may start measurement during mobility management. The specific implementation method is not limited in this application.

[0117] In one possible implementation, the first device configures multiple sets of cell measurement parameters in multiple system messages and sends multiple system messages. For example, the first device may configure multiple sets of cell measurement parameters in SIB2 / 3 / 4, where the multiple sets of cell measurement parameters correspond to different PLMNs.

[0118] In another possible implementation, the first device sends a first system message of the first cell, where the first system message is used to indicate multiple sets of SIB2 / 3 / 4, where the multiple sets of SIB2 / 3 / 4 are respectively associated with different PLMNs, and where the multiple sets of SIB2 / 3 / 4 correspond to multiple sets of cell measurement parameters; or, where the multiple sets of SIB2 / 3 / 4 carry multiple sets of cell measurement parameters, where the multiple sets of cell measurement parameters are respectively associated with different PLMNs. The specific implementation method is not limited in this application.

[0119] S103, the second device configures corresponding cell common parameters.

[0120] In a possible implementation, after receiving multiple sets of cell common parameters, the second device may determine the cell common parameters corresponding to the second device based on information of the PLMN network to which it belongs (such as the PLMN identifier) ​​and configure the corresponding cell common parameters.

[0121] Optionally, the second device may also receive configuration information such as mobility management parameters and cell measurement parameters, and the second device may also configure corresponding mobility management parameters and corresponding cell measurement parameters. For example, the second device may retrieve a paging message in a system frame whose system frame number satisfies the first condition. If a corresponding paging message is retrieved, the second device receives the mobility management parameters carried in the corresponding paging message. For another example, the second device receives multiple sets of SIB2 / 3 / 4 and may determine the SIB corresponding to the second device based on the identifier of the PLMN of the PLMN network to which it belongs, thereby determining the cell measurement parameters corresponding to the second device. The specific implementation method is not limited in this application.

[0122] In this embodiment, the first device can configure different cell common parameters, different mobility management parameters or different cell measurement parameters for terminals served by different PLMNs, and send the above parameters to the terminal through signaling, thereby providing differentiated cell configuration, paging configuration or measurement configuration, etc. for terminals served by different PLMNs in a shared cell.

[0123] It is understood that in order to implement the functions of the above-mentioned device embodiments, the base station and the terminal include hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should readily appreciate that, in conjunction with the various exemplary units and method steps described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in hardware or in a computer software-driven hardware manner depends on the specific application scenario and design constraints of the technical solution.

[0124] Figures 6 and 7 are schematic diagrams of possible communication devices provided by the present application. These communication devices can be used to implement the functions of the first device (such as a base station) or the second device (such as a terminal) in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments. In the embodiments of the present application, the communication device can be a terminal as shown in Figure 1, or an access network device as shown in Figure 1, or a module (such as a chip) applied to a terminal or access network device.

[0125] As shown in Figure 6, a communication device 600 includes a processing unit 610 and a transceiver unit 620. Communication device 600 is used to implement the functions of a terminal or access network device in the method embodiments shown in Figures 2 to 5 above. Optionally, transceiver unit 620 includes a transmitting unit and a receiving unit, and transceiver unit 620 may also be referred to as a communication unit.

[0126] When the communication device 600 is used to implement the functions of the access network device in the method embodiment shown in FIG2 , the processing unit 610 is configured to configure multiple sets of cell-common parameters for terminals in a first cell served by different public land mobile networks (PLMNs), where different PLMNs in the first cell share access network resources. The transceiver unit 620 is configured to transmit the multiple sets of cell-common parameters.

[0127] In one possible implementation, the transceiver unit 620 is configured to send multiple sets of cell common parameters, including:

[0128] A first system message of a first cell is sent, where the first system message includes multiple sets of cell common parameters.

[0129] In one possible implementation, the transceiver unit 620 is configured to send multiple sets of cell common parameters, including:

[0130] At least one second system message is scheduled in the first cell, where the at least one second system message is used to indicate a corresponding cell common parameter.

[0131] In one possible implementation, the transceiver unit 620 is configured to send multiple sets of cell common parameters, including:

[0132] Configuring multiple physical downlink control channel search spaces, where the multiple physical downlink control channel search spaces include multiple control information, and the multiple control information is used for the terminal to receive corresponding cell common parameters;

[0133] Alternatively, a first physical downlink control channel scrambled by a system information radio network temporary identifier SI-RNTI is sent, where the first physical downlink control channel is used to indicate multiple sets of cell common parameters.

[0134] In a possible implementation, the transceiver unit 620 is further configured to:

[0135] First indication information is sent, where the first indication information is used to indicate one or more random access resources allocated to a terminal served by a different PLMN in a first cell.

[0136] In a possible implementation, the processing unit 610 is further configured to configure multiple sets of mobility management parameters for terminals served by different PLMNs in the first cell; and the transceiver unit 620 is further configured to send the multiple sets of mobility management parameters.

[0137] In one possible implementation, the transceiver unit 620 is configured to send multiple sets of mobility management parameters, including:

[0138] A first system message of a first cell is sent, where the first system message includes multiple sets of mobility management parameters.

[0139] In one possible implementation, the transceiver unit 620 is configured to send multiple sets of mobility management parameters, including:

[0140] The paging message is sent in different system frames, and different system frames are associated with different PLMNs.

[0141] In one possible implementation, the transceiver unit 620 is configured to send multiple sets of mobility management parameters, including:

[0142] A second physical downlink control channel scrambled by the P-RNTI is sent, where the second physical downlink control channel is used to indicate multiple sets of mobility management parameters.

[0143] In a possible implementation, the transceiver unit 620 is further configured to:

[0144] A paging message is sent, where the paging message includes a first identifier, where the first identifier is used to indicate terminals in the first cell that are served by different PLMNs and have the same user identifier.

[0145] In a possible implementation, the processing unit 610 is further configured to respectively configure multiple sets of cell measurement parameters for terminals served by different PLMNs in the first cell; and the transceiver unit 620 is further configured to send the multiple sets of cell measurement parameters.

[0146] It can be seen that when the communication device 600 is used to implement the function of the access network device in the method embodiment shown in Figure 2, the communication device 600 can configure different cell common parameters for terminals served by different PLMNs, and send the different cell common parameters to the terminals through signaling, thereby providing differentiated cell configurations for terminals served by different PLMNs in a shared cell.

[0147] When communication device 600 is used to implement the functions of a terminal in the method embodiment shown in FIG2 , transceiver unit 620 is configured to receive multiple sets of cell-common parameters configured by a first device for terminals served by different PLMNs in a first cell, where different PLMNs in the first cell share access network resources. Processing unit 610 is configured to configure the corresponding cell-common parameters.

[0148] In one possible implementation, the transceiver unit 620 is configured to receive multiple sets of cell common parameters configured by the first device for terminals served by different PLMNs in the first cell, including:

[0149] A first system message of a first cell is received, where the first system message includes multiple sets of cell common parameters.

[0150] In one possible implementation, the transceiver unit 620 is configured to receive multiple sets of cell common parameters configured by the first device for terminals served by different PLMNs in the first cell, including:

[0151] At least one second system message is acquired through the first system message of the first cell, where the at least one second system message is used to indicate a corresponding cell common parameter.

[0152] In one possible implementation, the transceiver unit 620 is configured to receive multiple sets of cell common parameters configured by the first device for terminals served by different PLMNs in the first cell, including:

[0153] Retrieving corresponding control information in multiple physical downlink control channel search spaces and receiving corresponding cell common parameters; or,

[0154] A first physical downlink control channel scrambled by the SI-RNTI is received, where the first physical downlink control channel is used to indicate the multiple sets of cell common parameters.

[0155] In a possible implementation, the transceiver unit 620 is further configured to:

[0156] First indication information is received, where the first indication information is used to indicate one or more random access resources allocated to a terminal served by different PLMNs in a first cell.

[0157] In a possible implementation, the transceiver unit 620 is further configured to receive multiple sets of mobility management parameters configured by the first device for terminals served by different PLMNs in the first cell; and the processing unit 610 is further configured to configure corresponding mobility management parameters.

[0158] In a possible implementation, the transceiver unit 620 is configured to receive multiple sets of mobility management parameters configured by the first apparatus for terminals served by different PLMNs in the first cell, including:

[0159] A first system message of a first cell is received, where the first system message includes multiple sets of mobility management parameters.

[0160] In a possible implementation, the transceiver unit 620 is configured to receive multiple sets of mobility management parameters configured by the first apparatus for terminals served by different PLMNs in the first cell, including:

[0161] The paging message is retrieved from the system frames whose system frame numbers meet the first condition, and different system frames are associated with different PLMNs.

[0162] In a possible implementation, the transceiver unit 620 is configured to receive multiple sets of mobility management parameters configured by the first apparatus for terminals served by different PLMNs in the first cell, including:

[0163] A second physical downlink control channel scrambled by the P-RNTI is received, where the second physical downlink control channel is used to indicate multiple sets of mobility management parameters.

[0164] In a possible implementation, the transceiver unit 620 is further configured to:

[0165] A paging message is received, where the paging message includes a first identifier, where the first identifier is used to indicate terminals in a first cell that are served by different PLMNs and have the same user identifier.

[0166] In a possible implementation, the transceiver unit 620 is further configured to receive multiple sets of cell measurement parameters configured by the first device for terminals served by different PLMNs in the first cell; and the processing unit 610 is further configured to configure corresponding cell measurement parameters.

[0167] It can be seen that when the communication device 600 is used to implement the function of the terminal in the method embodiment shown in Figure 2, the communication device 600 can receive signaling sent by the first device, thereby obtaining different cell common parameters and realizing differentiated cell configuration of terminals served by different PLMNs in a shared cell.

[0168] For a more detailed description of the processing unit 610 and the transceiver unit 620 , reference may be made to the relevant descriptions in the method embodiments shown in FIG. 2 to FIG. 5 .

[0169] As shown in Figure 7, the communication device 700 includes a processor 710 and an interface circuit 720. The processor 710 and the interface circuit 720 are coupled to each other. It is understood that the interface circuit 720 can be a transceiver or an input / output interface. Optionally, the communication device 700 may also include a memory 730 for storing instructions executed by the processor 710, or storing input data required by the processor 710 to execute instructions, or storing data generated after the processor 710 executes instructions. Sometimes, the interface circuit 720 can also be understood as a part of the processor 710, in which case the communication device 700 includes the processor 710. Optionally, the transceiver includes a transmitter and a receiver.

[0170] When the communication device 700 is used to implement the method embodiments shown in FIG. 2 to FIG. 5 , the processor 710 is used to implement the functions of the processing unit 610 , and the interface circuit 720 is used to implement the functions of the transceiver unit 620 .

[0171] When the above-mentioned communication device is a chip applied to a terminal, the terminal chip implements the functions of the terminal in the above-mentioned method embodiment. When the terminal chip receives information from the base station, it can be understood that the information is first received by other modules in the terminal (such as a radio frequency module or antenna) and then sent to the terminal chip by these modules. When the terminal chip sends information to the base station, it can be understood that the information is first sent to other modules in the terminal (such as a radio frequency module or antenna) and then sent to the base station by these modules.

[0172] When the above-mentioned communication device is a chip applied to a base station, the base station chip implements the functions of the base station in the above-mentioned method embodiment. When the base station chip receives information from the terminal, it can be understood that the information is first received by other modules in the base station (such as a radio frequency module or antenna) and then sent to the base station chip by these modules. When the base station chip sends information to the terminal, it can be understood that the information is sent to other modules in the base station (such as a radio frequency module or antenna) and then sent to the terminal by these modules.

[0173] In this application, when entity A sends information to entity B, it can be done directly from A to B or indirectly through another entity. Similarly, when entity B receives information from entity A, it can be done directly from entity B or indirectly through another entity. Entities A and B herein can be RAN nodes or terminals, or modules within a RAN node or terminal. The sending and receiving of information can be information exchange between a RAN node and a terminal, for example, between a base station and a terminal; the sending and receiving of information can also be information exchange between two RAN nodes, for example, between a CU and a DU; the sending and receiving of information can also be information exchange between different modules within a device, for example, between a terminal chip and other modules in the terminal, or between a base station chip and other modules within the base station.

[0174] In other words, sending and receiving can be performed between devices, for example, between a network device and a terminal device, or can be performed within a device, for example, sending or receiving between components, modules, chips, software modules or hardware modules within the device through a bus, wiring or interface.

[0175] It is understandable that information may be processed between the source and destination of information transmission, such as coding, modulation, etc., but the destination can understand the valid information from the source. Similar expressions in this application can be understood similarly and will not be repeated.

[0176] It is understood that the processor in the embodiments of the present application may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0177] The method steps in the embodiments of the present application can be implemented in hardware or in software instructions that can be executed by a processor. The software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, registers, hard disk, mobile hard disk, CD-ROM or any other form of storage medium well known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. The storage medium can also be an integral part of the processor. The processor and storage medium can be located in an ASIC. In addition, the ASIC can be located in a base station or a terminal. The processor and storage medium can also exist in a base station or a terminal as discrete components.

[0178] In the above embodiments, all or part of the embodiments may be implemented using software, hardware, firmware, or any combination thereof. When implemented using software, all or part of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are performed in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device, or other programmable device. The computer program or instructions may be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions may be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; an optical medium, such as a digital video disk; or a semiconductor medium, such as a solid-state drive. The computer-readable storage medium may be a volatile or nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.

[0179] In the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships.

[0180] In this application, "at least one" means one or more, and "more" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. In the text description of this application, the character " / " generally indicates that the previous and next associated objects are in an "or" relationship; in the formula of this application, the character " / " indicates that the previous and next associated objects are in a "division" relationship. "Including at least one of A, B and C" can mean: including A; including B; including C; including A and B; including A and C; including B and C; including A, B and C.

[0181] In this application, words such as "first" and "second" can be used to distinguish technical features with the same or similar functions. The words such as "first" and "second" do not limit the quantity and execution order, and the words such as "first" and "second" do not necessarily limit them to be different. In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or design. The use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete way for easy understanding.

[0182] In the embodiments of the present application, "indication" may include direct indication and indirect indication, and may also include explicit indication and implicit indication. The information indicated by a certain information (such as the indication information described below) is called information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated, such as but not limited to, the information to be indicated can be directly indicated, such as the information to be indicated itself or the index of the information to be indicated. The information to be indicated can also be indirectly indicated by indicating other information, wherein there is an association between the other information and the information to be indicated; it is also possible to indicate only a part of the information to be indicated, while the other parts of the information to be indicated are known or agreed in advance, for example, the indication of specific information can be achieved with the help of the arrangement order of each information agreed in advance (such as predefined by the protocol), thereby reducing the indication overhead to a certain extent. The present application does not limit the specific method of indication. It is understandable that, for the sender of the indication information, the indication information can be used to indicate the information to be indicated, and for the receiver of the indication information, the indication information can be used to determine the information to be indicated.

[0183] It is understood that the various numbers used in the embodiments of this application are merely for ease of description and are not intended to limit the scope of the embodiments of this application. The order of the sequence numbers of the above-mentioned processes does not necessarily imply a specific order of execution; the order of execution of the processes should be determined by their functions and inherent logic.

Claims

1. A communication method, characterized in that: The method comprises: configuring a plurality of sets of cell-common parameters for terminals served by different public land mobile networks (PLMNs) in a first cell, wherein the different PLMNs in the first cell share access network resources; The multiple sets of cell common parameters are sent.

2. The method according to claim 1, characterized in that The sending of the multiple sets of cell common parameters includes: A first system message of the first cell is sent, where the first system message includes the multiple sets of cell-common parameters.

3. The method according to claim 1, characterized in that The sending of the multiple sets of cell common parameters includes: At least one second system message is scheduled in the first cell, where the at least one second system message is used to indicate a corresponding cell common parameter.

4. The method according to claim 1, wherein The sending of the multiple sets of cell common parameters includes: Configuring multiple physical downlink control channel search spaces, where the multiple physical downlink control channel search spaces include multiple control information, and the multiple control information is used for the terminal to receive corresponding cell common parameters; Alternatively, a first physical downlink control channel scrambled by a system information radio network temporary identifier SI-RNTI is sent, where the first physical downlink control channel is used to indicate the multiple sets of cell common parameters.

5. The method according to claim 1, wherein The method further comprises: First indication information is sent, where the first indication information is used to indicate one or more random access resources allocated to terminals served by different PLMNs in a first cell.

6. The method according to claim 5, characterized in that Any random access resource of the one or more random access resources is exclusively used by one network or shared by multiple networks.

7. The method according to claim 1, characterized in that The method further comprises: configuring multiple sets of mobility management parameters for terminals served by different PLMNs in the first cell; The multiple sets of mobility management parameters are sent.

8. The method according to claim 7, characterized in that The sending of the multiple sets of mobility management parameters includes: A first system message of the first cell is sent, where the first system message includes the multiple sets of mobility management parameters.

9. The method according to claim 7, characterized in that The sending of the multiple sets of mobility management parameters includes: The paging message is sent in different system frames, and different system frames are associated with different PLMNs.

10. The method according to claim 7, characterized in that The sending of the multiple sets of mobility management parameters includes: A second physical downlink control channel scrambled by a paging radio network temporary identifier P-RNTI is sent, where the second physical downlink control channel is used to indicate the multiple sets of mobility management parameters.

11. The method according to claim 7, characterized in that The method further comprises: A paging message is sent, where the paging message includes a first identifier, where the first identifier is used to indicate terminals in a first cell that are served by different PLMNs and have the same user identifier.

12. The method according to claim 1, characterized in that The method further comprises: configuring multiple sets of cell measurement parameters for terminals served by different PLMNs in the first cell; The multiple sets of cell measurement parameters are sent.

13. A communication method, characterized in that: The method comprises: receiving a plurality of sets of cell common parameters configured by a first device for terminals served by different PLMNs in a first cell, where different PLMNs in the first cell share access network resources; Configure the corresponding cell common parameters.

14. The method according to claim 13, characterized in that The receiving, by the first device, a plurality of sets of cell common parameters respectively configured for terminals served by different PLMNs in the first cell, includes: A first system message of the first cell is received, where the first system message includes the multiple sets of cell-common parameters.

15. The method according to claim 13, characterized in that The receiving, by the first device, a plurality of sets of cell common parameters respectively configured for terminals served by different PLMNs in the first cell, includes: At least one second system message is acquired through the first system message of the first cell, where the at least one second system message is used to indicate a corresponding cell common parameter.

16. The method according to claim 13, characterized in that The receiving, by the first device, a plurality of sets of cell common parameters respectively configured for terminals served by different PLMNs in the first cell, includes: Retrieving corresponding control information in multiple physical downlink control channel search spaces and receiving corresponding cell common parameters; or, A first physical downlink control channel scrambled by a system information radio network temporary identifier SI-RNTI is received, where the first physical downlink control channel is used to indicate the multiple sets of cell common parameters.

17. The method according to claim 13, wherein The method further comprises: First indication information is received, where the first indication information is used to indicate one or more random access resources allocated to a terminal served by different PLMNs in a first cell.

18. The method according to claim 17, characterized in that Any random access resource of the one or more random access resources is exclusively used by one network or shared by multiple networks.

19. The method according to claim 13, wherein The method further comprises: receiving a plurality of sets of mobility management parameters configured by the first device for terminals served by different PLMNs in the first cell; Configure the corresponding mobility management parameters.

20. The method according to claim 19, characterized in that The receiving of multiple sets of mobility management parameters respectively configured by the first device for terminals served by different PLMNs in the first cell includes: A first system message of the first cell is received, where the first system message includes the multiple sets of mobility management parameters.

21. The method according to claim 19, wherein The receiving of multiple sets of mobility management parameters respectively configured by the first device for terminals served by different PLMNs in the first cell includes: The paging message is retrieved from the system frames whose system frame numbers meet the first condition, and different system frames are associated with different PLMNs.

22. The method according to claim 19, wherein The receiving of multiple sets of mobility management parameters respectively configured by the first device for terminals served by different PLMNs in the first cell includes: A second physical downlink control channel scrambled by a paging radio network temporary identifier (P-RNTI) is received, where the second physical downlink control channel is used to indicate the multiple sets of mobility management parameters.

23. The method according to claim 19, wherein The method further comprises: A paging message is received, where the paging message includes a first identifier, where the first identifier is used to indicate terminals in a first cell that are served by different PLMNs and have the same user identifier.

24. The method according to claim 13, wherein The method further comprises: receiving a plurality of sets of cell measurement parameters configured by the first device for terminals served by different PLMNs in the first cell; Configure the corresponding cell measurement parameters.

25. A communication device, characterized in that: The method comprises a communication unit and a processing unit, wherein the communication unit and the processing unit are configured to execute the method according to any one of claims 1 to 12 or claims 13 to 24.

26. A communication device, characterized in that: The method comprises a processor and an interface circuit, wherein the interface circuit is used to receive signals from other communication devices and transmit them to the processor or send signals from the processor to other communication devices, and the processor is used to implement the method according to any one of claims 1 to 12 or claims 13 to 24 through a logic circuit or executing code instructions.

27. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program or instruction. When the computer program or instruction is executed by the communication device, the method according to any one of claims 1 to 12 or claims 13 to 24 is implemented.

28. A computer program product, characterized in that The method comprises instructions which, when executed on a computer, cause the computer to perform the method according to any one of claims 1 to 12 or claims 13 to 24.

29. A chip, characterized in that: The chip comprises a processor configured to execute a computer program, so that the chip implements the method according to any one of claims 1 to 12 or claims 13 to 24.

30. A chip system, characterized in that: The chip system includes a processor and an interface, and the processor is used to execute a computer program so that the chip system implements the method according to any one of claims 1 to 12 or claims 13 to 24.

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