WO2021102709A1

WO2021102709A1 - Method and apparatus for residing in cell

Info

Publication number: WO2021102709A1
Application number: PCT/CN2019/121067
Authority: WO
Inventors: 张宏平; 曾清海
Original assignee: 华为技术有限公司
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2021-06-03

Abstract

A method and apparatus for residing in a cell. The method comprises: a terminal device supporting a first SIM, wherein the first SIM supports a first user identity and a second user identity; and the terminal device residing in a first cell with the first user identity, and the terminal device residing in a second cell with the second user identity, wherein the first cell supports a first type of service, and the second cell supports a second type of service; and/or the first cell supports a first network slice, and the second cell supports a second network slice. Therefore, by using the method, the problem of a long latency in the process of a UE initiating a service caused due to a mismatch between the service initiated by the UE using one SIM card and the type of service supported by a cell in which the UE resides or a network slice supported by the cell in which the UE resides can be solved.

Description

Method and device for camping in a cell

Technical field

This application relates to the field of communication technologies, and in particular to a method and device for camping in a cell.

Background technique

In the prior art, a user equipment (UE) using one subscriber identification module (SIM) card can only reside in one cell. When data transmission is required, such as uplink data transmission or the UE receiving a paging message from a network-side device, the UE can only initiate a radio resource control (radio resource control, RRC) connection establishment process or RRC connection in the cell where it currently resides Recovery process.

With the development of the fifth generation (5G) technology of mobile communication systems, different network devices may provide different services or network slices. A UE may initiate services of many different types of services. For example, it may initiate enhanced mobile broadband (eMBB) services, or it may initiate ultra-reliable and low latency (URLLC) services. During cell selection or cell reselection, the UE cannot predict which type of service the UE will initiate. As a result, the service initiated by the UE and the type of service supported by the cell where the UE resides or the network slice supported by the cell where the UE resides may appear. Mismatch. At this time, the UE needs to enter the connected state from the cell where it currently resides, and then switch the UE to a cell that supports the service of the UE through the base station. This process takes a long time and affects the user experience of the UE.

Summary of the invention

The embodiments of the application provide a cell camping method and device, which are used to solve the mismatch between the service initiated by the UE using a SIM card and the service type supported by the cell where the UE camps or the network slice supported by the cell where the UE camps This leads to the problem of long delay in the process of initiating services by the terminal device.

In the first aspect, this application provides a cell camping method, which includes:

The terminal device supports a first SIM, and the first SIM supports a first user identity and a second user identity; the terminal device resides in the first cell as the first user identity, and the terminal device uses the second user identity Identity camping on the second cell; the first cell supports the first service type, and the second cell supports the second service type; and/or the first cell supports the first network slice, and the second cell supports the first 2. Network slicing.

Using the above method, a terminal device supporting the first SIM can use two user identities to camp on two cells respectively, and the service types or network slices supported by the two cells are different. Therefore, it can be solved that the service initiated by the terminal device using a SIM card does not match the service type supported by the cell where the terminal device resides or the network slice supported by the cell where the terminal device resides, which results in a long delay in the process of the terminal device initiating the service. The problem can improve the user experience.

Wherein, the service type supported by the first cell is different from the service type supported by the second cell, and/or the network slice supported by the first cell is different from the network slice supported by the second cell; or The priority of the service type supported by the first cell is different from the priority of the service type supported by the second cell, and/or the priority of the network slice supported by the first cell is different from the priority of the network slice supported by the second cell The priority of network slicing is different.

In a possible design, the method further includes: the terminal device collects from the first cell and the second cell based on the service type of the service to be initiated and/or the network slice corresponding to the service to be initiated. Select a cell to initiate the RRC connection establishment process or the RRC connection recovery process.

With the above design, the terminal device selects a cell from the first cell and the second cell to initiate the RRC connection establishment process or the RRC connection recovery process according to the initiated service, which can improve user experience.

In a possible design, the method further includes: the terminal device receives configuration information sent from a core network device, the configuration information indicating that the terminal device is allowed to camp on multiple cells.

With the above design, the core network device can indicate that the terminal device is allowed to camp in multiple cells.

In a possible design, before the terminal device camps on the second cell as the second user, the terminal device camps on the first cell as the first user; the terminal device receives The system information of the first cell, the system information of the first cell includes indication information, and the indication information indicates that the terminal device is allowed to camp on multiple cells.

With the above design, the network device can indicate that the terminal device is allowed to camp on multiple cells.

In a possible design, the system information of the first cell includes the service type supported by the first cell;

The service types supported by the terminal device to initiate the service include a first service type and a second service type. The terminal device determines that the first cell supports the first service type based on the system information of the first cell. The terminal device receives the system information of the second cell, where the system information of the second cell includes the service type supported by the second cell. The terminal device determines that the second cell supports the second service type based on the system information of the second cell, and the terminal device camps on the second cell as the second user.

With the above design, the terminal device can select a suitable second cell as the camping cell.

In a possible design, the system information of the first cell includes a network slice supported by the first cell; the network slice supported by the terminal device includes a first network slice and a second network slice; the terminal device Based on the system information of the first cell, it is determined that the first cell supports the first network slice; the terminal device receives the system information of the second cell, and the system information of the second cell includes the support of the second cell The network slicing; the terminal device determines that the second cell supports the second network slicing based on the system information of the second cell, and the terminal device camps on the second cell as the second user.

In a possible design, the system information of the first cell includes frequency point information supporting at least one service type or network slice, or cell information supporting at least one service type or network slice, or at least one frequency point At least one of supported service type information or network slice information.

With the above design, the efficiency of the terminal device in finding a suitable second cell can be improved.

In a possible design, the first cell and the second cell are in a registration area of the terminal device or in an access network notification area RNA of the terminal device.

Using the above design can prevent the terminal equipment from entering the connected state due to cell selection.

In a possible design, the method further includes: the terminal device performs cell reselection as the second user from the second cell to a third cell, and the third cell is in the terminal device The registration area or within the RNA of the terminal device.

Using the above design can avoid frequent terminal equipment entering the connected state due to cell reselection.

In a possible design, the method further includes: the terminal device performs cell reselection as the first user from the first cell to the fourth cell, and when the fourth cell is not registered with the terminal device Area or not in the RNA of the terminal device, the terminal device initiates the registration area update process or the RNA update process; the terminal device performs cell reselection as the second user from the second cell to the third cell. For a cell, when the third cell is not in the registration area of the terminal device or not in the RNA of the terminal device, the terminal device does not initiate a registration area update process or an RNA update process.

In a possible design, the method further includes: the terminal device monitors the paging message in the first cell, and does not monitor the paging message in the second cell.

Using the above design can achieve the effect of saving power on the terminal equipment.

In a second aspect, a cell camping method includes: a terminal device supports a first SIM; the first SIM supports a user identity; and the terminal device camps on the first SIM with a user identity supported by the first SIM. A cell and a second cell; the first cell supports a first service type, and the second cell supports a second service type; and/or the first cell supports a first network slice, and the second cell supports a second Network slicing. Using the above method, a terminal device supporting the first SIM can reside in two cells, and the service types or network slices supported by the two cells are different. Therefore, it can be solved that the service initiated by the terminal device using a SIM card does not match the service type supported by the cell where the terminal device resides or the network slice supported by the cell where the terminal device resides, which results in a long delay in the process of the terminal device initiating the service. The problem can improve the user experience.

In a possible design, the method further includes: the terminal device selects a cell from the first cell and the second cell based on the service type of the service to be initiated and/or the network slice corresponding to the service to be initiated Initiate the RRC connection establishment process or the RRC connection recovery process.

In a possible design, the method further includes: the terminal device receives configuration information sent from a core network device, where the configuration information indicates that the terminal device is allowed to camp on multiple cells.

In a possible design, before the terminal device camps on the second cell, the terminal device camps on the first cell as a user supported by the first SIM; the terminal device receives the first cell The system information of the cell, where the system information of the first cell includes indication information indicating that the terminal device is allowed to camp on multiple cells.

In a possible design, the system information of the first cell includes the service type supported by the first cell; the service type supported by the terminal device to initiate the service includes the first service type and the second service type; The terminal device determines that the first cell supports the first service type based on the system information of the first cell; the terminal device receives the system information of the second cell, and the system information of the second cell includes the second cell The service type supported by the cell; the terminal device determines that the second cell supports the second service type based on the system information of the second cell, and the terminal device resides in the identity of the user supported by the first SIM The second cell.

In a possible design, the system information of the first cell includes a network slice supported by the first cell; the network slice supported by the terminal device includes a first network slice and a second network slice; the terminal device Based on the system information of the first cell, it is determined that the first cell supports the first network slice; the terminal device receives the system information of the second cell, and the system information of the second cell includes the support of the second cell The network slicing; the terminal device determines that the second cell supports the second network slicing based on the system information of the second cell, and the terminal device resides in the second cell as a user supported by the first SIM .

In a possible design, the first cell and the second cell are in the registration area of the terminal device or in the RNA of the terminal device.

In a possible design, the method further includes: the terminal device performs cell reselection from the second cell to a third cell as the user identity supported by the first SIM, and the third cell is in the The registration area of the terminal device or in the RNA of the terminal device.

In a possible design, the method further includes: the terminal device performs cell reselection from the first cell to the fourth cell as the user identity supported by the first SIM, and when the fourth cell is not available If the registration area of the terminal device is not in the RNA of the terminal device, the terminal device initiates a registration area update process or an RNA update process; the terminal device performs cell reselection from the identity of the user supported by the first SIM The second cell is reselected to the third cell, and when the third cell is not in the registration area of the terminal device or not in the RNA of the terminal device, the terminal device does not initiate a registration area update process or RNA Update process.

In a third aspect, an embodiment of the present application provides a cell camping device, which may be a terminal device. The device includes: a processing unit and a transceiving unit; the processing unit invokes the transceiving unit to execute: using the first user The identity camps on the first cell and the second cell as the second user; the device supports the first SIM, and the first SIM supports the first user identity and the second user identity; the first cell supports The first service type, the second cell supports the second service type; and/or the first cell supports the first network slice, and the second cell supports the second network slice.

In a possible design, the processing unit invokes the transceiver unit to execute: based on the service type of the service to be initiated and/or the network slice corresponding to the service to be initiated, the first cell and the second cell are Select a cell to initiate the RRC connection establishment process or the RRC connection recovery process.

In a possible design, the transceiver unit is configured to receive configuration information sent from a core network device, where the configuration information indicates that the device is allowed to camp on multiple cells.

In a possible design, the processing unit invokes the transceiving unit to execute: camping on the first cell as the first user; the transceiving unit is also used to receive the system of the first cell Information, the system information of the first cell includes indication information, and the indication information indicates that the device is allowed to camp on multiple cells.

In a possible design, the system information of the first cell includes the service type supported by the first cell; the processing unit is configured to: determine the first cell based on the system information of the first cell Support the first service type; the service type supported by the device for initiating the service includes the first service type and the second service type; the transceiver unit is configured to receive system information of the second cell, so The system information of the second cell includes the service type supported by the second cell; the processing unit invokes the transceiver unit to perform: determining that the second cell supports the second service based on the system information of the second cell Type, camping on the second cell as the second user.

In a possible design, the system information of the first cell includes network slices supported by the first cell; the processing unit is configured to determine that the first cell supports the first cell based on the system information of the first cell The first network slice; the network slice supported by the device includes the first network slice and the second network slice; the transceiver unit is configured to receive system information of the second cell, and the second The system information of the cell includes the network slice supported by the second cell; the processing unit invokes the transceiver unit to execute: based on the system information of the second cell, it is determined that the second cell supports the second network slice, to The second user identity camps on the second cell.

In a possible design, the first cell and the second cell are in the registration area of the device or in the RNA of the device.

In a possible design, the processing unit invokes the transceiver unit to perform: perform cell reselection as the second user from the second cell to the third cell, and the third cell is in the The registration area of the device or within the RNA of the device.

In a possible design, the processing unit invokes the transceiving unit to execute: perform cell reselection as the first user from the first cell to the fourth cell, and when the fourth cell is not in the If the registration area of the device is not in the RNA of the device, the registration area update process or the RNA update process is initiated; the processing unit invokes the transceiver unit to execute: perform cell reselection as the second user from the second cell Reselect to the third cell, and when the third cell is not in the registration area of the device or not in the RNA of the device, the registration area update process or the RNA update process is not initiated.

In a possible design, the processing unit invokes the transceiver unit to perform: monitoring paging messages in the first cell, and not monitoring paging messages in the second cell.

Regarding the technical effects brought about by the third aspect or various possible implementation manners, reference may be made to the introduction of the technical effects of the first aspect or corresponding implementation manners.

In a fourth aspect, an embodiment of the present application provides a cell camping device, the device may be a terminal device, and the device includes: a processing unit and a transceiver unit;

The processing unit invokes the transceiver unit to perform: camping on the first cell and the second cell as a user identity supported by the first SIM; the device supports the first SIM; the first SIM supports one user identity; The first cell supports a first service type, and the second cell supports a second service type; and/or the first cell supports a first network slice, and the second cell supports a second network slice.

In a possible design, the transceiver unit is further configured to: receive configuration information sent from a core network device, where the configuration information indicates that the device is allowed to camp on multiple cells.

In a possible design, the processing unit invokes the transceiver unit to perform: camping on the first cell as a user supported by the first SIM;

The transceiver unit is configured to receive system information of the first cell, where the system information of the first cell includes indication information, and the indication information indicates that the device is allowed to camp on multiple cells.

The processing unit is configured to determine that the first cell supports the first service type based on the system information of the first cell; the service types supported by the device for initiating services include the first service type and the second service type;

The transceiver unit is configured to receive system information of the second cell, where the system information of the second cell includes the service type supported by the second cell;

The processing unit invokes the transceiver unit to perform: determining that the second cell supports the second service type based on the system information of the second cell, and camping on the second cell as a user supported by the first SIM Community.

In a possible design, the system information of the first cell includes network slices supported by the first cell;

The processing unit is configured to determine, based on the system information of the first cell, that the first cell supports a first network slice; the network slices supported by the apparatus include a first network slice and a second network slice;

The transceiver unit is configured to receive system information of the second cell, where the system information of the second cell includes network slices supported by the second cell;

The processing unit invokes the transceiver unit to perform: determining that the second cell supports a second network slice based on the system information of the second cell, and camping on the second cell as a user supported by the first SIM.

In a possible design, the first cell and the second cell are in the registration area of the device or in the access network notification area RNA of the device.

In a possible design, the processing unit invokes the transceiving unit to perform: reselecting from the second cell to the third cell with the user identity supported by the first SIM cell reselection, the third cell In the registration area of the device or in the RNA of the device.

In a possible design, the processing unit invokes the transceiver unit to perform: perform cell reselection as a user supported by the first SIM, and reselect from the first cell to the fourth cell. Fourth, if the cell is not in the registration area of the device or is not in the RNA of the device, initiate a registration area update process or an RNA update process; perform cell reselection with the identity of the user supported by the first SIM and reselect from the second cell. If the third cell is selected, when the third cell is not in the registration area of the device or not in the RNA of the device, the registration area update process or the RNA update process is not initiated.

Regarding the technical effects brought by the fourth aspect or various possible implementation manners, reference may be made to the introduction of the technical effects of the second aspect or corresponding implementation manners.

In a fifth aspect, an embodiment of the present application provides a chip, and the chip may be a chip in a terminal device. The chip may include a processor, an input/output interface, a pin or a circuit, etc.; the processor executes instructions stored in the storage unit, so that the chip executes the first aspect or any one of the possible design methods in the first aspect , Or the second aspect or any one of the possible design methods of the second aspect. The storage unit is used to store instructions. The storage unit can be a storage unit in the chip (for example, a register, a cache, etc.), or a storage unit in the terminal device located outside the chip (for example, a read-only memory, Random access memory, etc.).

In a sixth aspect, the embodiments of the present application also provide a computer-readable storage medium, the computer-readable storage medium stores a computer program, and when the computer program runs on a computer, the computer executes the first aspect to the second aspect described above. Methods.

In a seventh aspect, the embodiments of the present application also provide a computer program product containing a program, which when running on a computer, causes the computer to execute the methods of the first aspect to the second aspect.

Description of the drawings

Figure 1 is a schematic diagram of the system architecture of the communication system in this application;

2 is a specific flow chart of the application in scenario 1 where the terminal device camps in the first cell as the first user, and the terminal device camps in the second cell as the second user;

FIG. 3 is a specific flow chart of the terminal device camping in the first cell as the first user and the terminal device camping in the second cell as the second user in scenario 2 in this application;

FIG. 4 is a schematic diagram of the terminal device camping in the first cell as the first user, and the terminal device camping in the second cell as the second user in this application;

FIG. 5 is a specific flowchart of the terminal device camping on the first cell and the second cell in scenario 1 in this application;

FIG. 6 is a specific flow chart of the terminal device camping on the first cell and the second cell in scenario 2 in this application;

FIG. 7 is a schematic diagram of a terminal device camping on a first cell and a second cell in this application;

Figure 8 is one of the schematic diagrams of a device structure in this application;

FIG. 9 is the second schematic diagram of a device structure in this application.

Detailed ways

The embodiments of the present application will be described below in conjunction with the drawings.

The embodiments of the present application may be applied to the fourth generation mobile communication system (the forth generation, 4G) system, or the 5G system, or the future mobile communication system. The system architecture shown in FIG. 1 is only an example based on the 5G system, and is not a limitation of this application.

The network equipment involved in the embodiments of the present application may be a base station in a radio access network (radio access network, RAN), etc. The base station may have a centralized unit (centralized unit, CU) and distributed unit (distributed unit, DU) separated architecture. CU and DU can be understood as the division of the base station from the perspective of logical functions. CU and DU can be physically separated or deployed together. Multiple DUs can share one CU. One DU can also be connected to multiple CUs (not shown in the figure). The CU and the DU can be connected through an interface, for example, an F1 interface. CU and DU can be divided according to the protocol layer of the wireless network. For example, one of the possible division methods is: CU is used to implement the radio resource control (radio resource control, RRC) layer, the service data adaptation protocol (service data adaptation protocol, SDAP) layer, and the packet data convergence layer protocol (packet data convergence) layer. Protocol, PDCP) layer functions, and DU is used to perform radio link control (radio link control, RLC) layer, media access control (media access control, MAC) layer, physical (physical) layer and other functions. It can be understood that the division of CU and DU processing functions according to this protocol layer is only an example, and it can also be divided in other ways. For example, the CU or DU can be divided into functions with more protocol layers. For example, the CU or DU can also be divided into part of the processing functions with the protocol layer. In a design, part of the functions of the RLC layer and the functions of the protocol layer above the RLC layer are set in the CU, and the remaining functions of the RLC layer and the functions of the protocol layer below the RLC layer are set in the DU. In another design, the functions of the CU or DU can also be divided according to service types or other system requirements. For example, it is divided by time delay, and the functions whose processing time needs to meet the delay requirement are set in the DU, and the functions that do not need to meet the delay requirement are set in the CU. The network architecture shown in Figure 1 above can be applied to a 5G communication system, and it can also share one or more components or resources with an LTE system. In another design, the CU may also have one or more functions of the core network. One or more CUs can be set centrally or separately. For example, the CU can be set on the network side to facilitate centralized management. The DU can have multiple radio frequency functions, or the radio frequency functions can be set remotely.

The functions of the CU can be implemented by one entity or by different entities. For example, the functions of the CU can be further divided, for example, the control panel (CP) and the user panel (UP) are separated, that is, the CU control plane (CU-CP) and the CU user plane (CU) are separated. -UP). For example, the CU-CP and CU-UP may be implemented by different functional entities, and the CU-CP and CU-UP may be coupled with the DU to jointly complete the function of the base station.

The terminal device may be a wireless terminal, which may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. The wireless terminal can communicate with one or more core networks via the RAN. The wireless terminal can be a mobile terminal, such as a mobile phone (or called a "cellular" phone) and a computer with a mobile terminal. For example, it can be a portable, pocket-sized, Hand-held, computer-built or vehicle-mounted mobile devices that exchange language and/or data with wireless access networks. A wireless terminal can also be called a subscriber unit (SU), a subscriber station (SS), a mobile station (MB), a mobile station (Mobile), a remote station (RS), and access Point (access point, AP), remote terminal (remote terminal, RT), access terminal (access terminal, AT), user terminal (user terminal, UT), user agent (user agent, UA), terminal equipment (user device) , UD), or user equipment (UE).

In addition, the embodiments of the present application may also be applicable to other future-oriented communication technologies. The network architecture and business scenarios described in this application are intended to explain the technical solutions of this application more clearly, and do not constitute a limitation on the technical solutions provided by this application. Those of ordinary skill in the art will know that with the evolution of the network architecture and new business scenarios The technical solutions provided in this application are equally applicable to similar technical problems.

In the 5G system, the UE has three radio resource control (radio resource control, RRC) states (in the LTE system, the UE has only the following two states: connected state and idle state):

Connected state: The UE has established an RRC connection with the network device and can perform data transmission.

Idle state: The UE has not established an RRC connection with the network device, and the network device does not have the context of the UE. If the UE needs to enter the connected state from the idle state, it needs to initiate an RRC connection establishment process.

Inactive state: The UE entered the connected state before, and then the network device released the RRC connection, but the network device and the UE saved the context. If the UE needs to enter the connected state from the inactive state, it needs to initiate the RRC connection recovery process. Among them, compared with the RRC establishment process, the RRC connection recovery process has shorter time delay and smaller signaling overhead, but the network equipment needs to save the UE context, which occupies more storage overhead.

When the UE has no data transmission, in order to save power, the UE enters an idle state or an inactive state. In the above state, the UE needs to wake up at a certain time-frequency resource location in a certain period to monitor paging messages. Among them, for a UE in an idle state, when downlink data arrives at the core network, the core network sends a paging message to multiple network devices under the UE's registration area to trigger the network device to send a paging message on the air interface. For an inactive UE, when downlink data arrives at the network device, the network device sends a paging message. If the UE is configured with a RAN-based Notification Area (RNA), the network device will send a message to the network device contained in the RNA The adjacent network device sends a paging message.

The network device sends a paging message (carrying the UE paging identity (Paging Identity)) on the air interface at the paging occasion of the UE, and the UE monitors the physical downlink control channel (PDCCH) to receive the paging at its own paging occasion If the UE receives a paging message and determines that it is paged, it will initiate an RRC connection establishment process or an RRC connection recovery process on the cell where it currently resides to enter the connected state.

When the UE is turned on or a radio link failure occurs, the UE will perform a cell search process and select a suitable cell to camp on as soon as possible. This process is called "cell selection". After the UE camps on a cell, as the UE moves, the UE may need to change to camp on another cell with a higher priority or better signal. This is the cell reselection process. Cell selection is a process of finding a suitable cell as soon as possible, and cell reselection is a process of selecting a more suitable cell.

Since the network equipment always pages the UE in the UE's registration area or RNA, when the UE cell selects or reselects to a cell in the current registration area or RNA, the UE does not need to notify the network. However, if the target cell for cell selection or reselection is not in the current registration area or RNA, the UE needs to enter the connected state to notify the network so that the network can update the UE's registration area or RNA. If the UE is in an idle state, when the target cell for cell selection or reselection is not in the current registration area, the UE needs to enter the connected state to notify the core network so that the core network can update the registration area of the UE. If the UE is in the inactive state, when the target cell for cell selection or reselection is not in the current RNA, the UE needs to enter the connected state to notify the network device so that the network device updates the UE's RNA.

The cell selection and cell reselection involved in the embodiments of the present application follow the cell selection and cell reselection criteria in the prior art, and will not be repeated here. It is understandable that with the evolution of the network architecture and the emergence of new business scenarios, even if the criteria for cell selection and cell reselection change, the technical solutions provided in this application are equally applicable to similar technical problems.

5G penetrates into vertical industries to support more business scenarios. In order to respond to various user use cases that are emerging or about to appear, different user use cases have significant differences in network performance requirements. The salient feature of 5G is that it proposes a network slice (NS) network architecture to meet user needs The difference. Software defined network (SDN) and network function virtualization (NFV) technologies are the core technologies of network slicing architecture. NFV technology realizes the virtualization of the underlying physical resources, and loads virtual network functions (NF) to a common platform, such as a virtual machine. SDN technology realizes the logical connection between virtual machines and builds a path that carries signaling and data streams. Through the dynamic connection between the RAN and the NF of the core network (core network, CN), an end-to-end service chain is configured to construct a network slice. Operators can form a set of specific network functions and include the network resources required to run these network functions according to the requirements of key performance indicators (KPIs) such as capacity, coverage, speed, delay, and reliability according to each specific business use case. , Which can provide the required telecommunication services and network capability services to meet specific market scenarios and needs.

The third generation partnership project (3GPP) divides the main types of 5G network slicing into the following three categories: eMBB, massive machine type communication (mMTC), and URLLC. Among them, eMBB is mainly aimed at services with higher data rate requirements, mMTC is mainly aimed at services with large-scale, low mobility and lower speed requirements, and URLLC is mainly aimed at services with demanding requirements on delay and reliability.

A complete network slice includes, but is not limited to, RAN-side network slices and CN-side network slices to jointly build an end-to-end network slice architecture. CN-side network slices use a set of customized NFs, including access and mobility management functions (Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), etc., RAN side network slicing through scheduling and a set of different layer 1, layer 2, etc. configurations To implement different RAN-side network slicing, the implementation form of the specific RAN-side network slicing is not limited here, and it can be achieved through atomization, modularization, softwareization, instantiation, and the like.

In the actual network slice deployment, some network slices may only be deployed in a local network area. For example, the company establishes a network slice for the company's employees in an industrial park to serve the company's employees, or deploys a network slice in a stadium , Improve users to enjoy better service and business experience when launching business in the stadium. In other words, the slices supported by different locations (cells) may be different. When the UE performs services, the network chooses to use different network slices to provide services for the UE according to different types of services, such as video services, car networking services, and voice services.

In order to solve the problem that the service initiated by the UE using a SIM card does not match the service type supported by the cell where the UE resides or the network slice supported by the cell where the UE resides, which causes a long delay in the process of initiating the service by the terminal device, This application provides a cell camping method: a terminal device camps in a first cell as a first user, and camps in a second cell as a second user, wherein the terminal device supports the first SIM, and the first SIM supports the first user The identity and the second user identity, the first cell supports the first service type, and the second cell supports the second service type; and/or the first cell supports the first network slice, and the second cell supports the second network slice. Therefore, after the terminal device resides in the first cell and the second cell, when the terminal device needs to initiate a service, the terminal device selects a cell from the first cell and the second cell to initiate RRC connection establishment based on the type of service required to initiate the service The process or the RRC connection recovery process, or the terminal device selects a cell from the first cell and the second cell to initiate the RRC connection establishment process or the RRC connection recovery process based on the network slice corresponding to the required service to be initiated. Therefore, the use of the above method can avoid the possible mismatch between the service initiated by the terminal device and the service type or network slice supported by the cell where it resides, thereby improving user experience.

In this application, the SIM card can be understood as the key for the terminal device to access the mobile network. For ease of description, the SIM card and its evolution are collectively referred to as the SIM card in the embodiments of this application. For example, the SIM card may be an identification card for a global system for mobile communications (GSM) digital mobile phone user, which is used to store the user's identification code and key, and support the GSM system to authenticate the user. For another example, the SIM card may also be a universal subscriber identity module (USIM), which may also be referred to as an upgraded SIM card. As an example, the SIM card can be used for private services and/or work; or, the SIM card can be used for data services and/or voice services. SIM card can belong to New Radio (NR), Long Term Evolution (LTE), Wideband Code Division Multiple Access (WCDMA), Time Division Multiple Access (TDMA) 2000 , Or one of GSM, etc.

In this application, the service type supported by the first cell may include at least one service type, and the service type supported by the second cell may include at least one service type. The service type supported by the first cell is different from the service type supported by the second cell, which may specifically include multiple situations. For example, the first cell and the second cell may support the same service type, and the first cell may include service types that the second cell does not support; or, the first cell and the second cell may support the same service type, and the second cell may support the same service type. The cell may include service types not supported by the first cell; or, the first cell and the second cell may support the same service type, and the first cell may include service types not supported by the second cell, and the second cell may include the first cell. The service type that the cell does not support; or the service type supported by the first cell and the service type supported by the second cell may also be completely different.

For example, the first cell supports service type 1 and service type 2, and the second cell supports service type 1; or, the first cell supports service type 1, and the second cell supports service type 1 and service type 2; or, the first cell supports Service type 1 and service type 3, the second cell supports service type 1 and service type 2; or, the first cell supports service type 1 and service type 3, and the second cell supports service type 2 and service type 4.

Similarly, the network slice supported by the first cell may include at least one network slice, and the network slice supported by the second cell may include at least one network slice. The network slice supported by the first cell is different from the network slice supported by the second cell, which may specifically include multiple situations. For example, the first cell and the second cell may support the same network slice, and the first cell may include a network slice that is not supported by the second cell; or, the first cell and the second cell may support the same network slice, and the second cell may support the same network slice. The cell may include network slices that are not supported by the first cell; or, the first cell and the second cell may support the same network slice, and the first cell may include network slices that are not supported by the second cell, and the second cell may include the first cell. A network slice not supported by the cell; or the network slice supported by the first cell and the network slice supported by the second cell may be completely different.

For example, the first cell supports network slice 1 and network slice 2, and the second cell supports network slice 1; or, the first cell supports network slice 1, and the second cell supports network slice 1 and network slice 2; or, the first cell supports Network slice 1 and network slice 3, the second cell supports network slice 1 and network slice 2; or, the first cell supports network slice 1 and network slice 3, and the second cell supports network slice 2 and network slice 4.

In addition, in this application, the service type supported by the first cell may also be the same as the service type supported by the second cell, or the network slice supported by the first cell may also be the same as the network slice supported by the second cell.

In a possible design, the first cell supports the first service type and the second service type, and the priority of the first service type is higher than the priority of the second service type. The second cell supports the first service type and the second service type, and the priority of the second service type is higher than the priority of the first service type.

Similarly, in another possible design, the network slice supported by the first cell may be the same as the network slice supported by the second cell. The first cell supports the first network slice and the second network slice, and the network slice of the first network slice The priority is higher than the priority of the second network slice. The second cell supports the first network slice and the second network slice, and the priority of the second network slice is higher than the priority of the first network slice.

Embodiment 1: The embodiment of the present application provides a cell camping method. The method includes: a terminal device supports a first SIM, and the first SIM supports a first user identity and a second user identity. The terminal device camps in the first cell as the first user, and the terminal device camps in the second cell as the second user.

In the embodiment of the present application, the terminal device supports a first SIM, and the first SIM supports at least two user identities. For example, the first SIM supports a first user identity and a second user identity. Or, it can be described as that the first SIM supports at least two virtual SIMs, and each virtual SIM corresponds to a user identity. Here, "user identity" (for example, the first user identity or the second user identity, etc.) is a logical concept. For example, "at least two user identities" can correspond to a SIM card or a subscriber information or a user identity (such as international mobile subscriber identity (IMSI)). From the perspective of the network side, different "users" "Identity" logically corresponds to different communication entities served by the network side, such as the "UE" in the 4G system and the 5G system. For example, if the first SIM supports two user identities, for the network side, it can support the first SIM The terminal device of is regarded as two communication entities, but in fact, the terminal device supporting the first SIM is only one physical entity.

In Embodiment 1, the terminal device is installed with a SIM card, and it is considered that the terminal device supports at least two user identities. For example, a terminal device with one SIM card supports two user identities. In other words, the SIM card and the user identity are in a one-to-many relationship. It should be understood that in Embodiment 1, only the first SIM supports the first user identity and the second user identity as an example for description. In practical applications, the first SIM can also support the third user identity or more users. Identity, this application does not limit this.

The following describes the specific process in which the terminal device camps in the first cell as the first user and the terminal device camps in the second cell as the second user for two different scenarios.

Scenario 1: The service type supported by the terminal device to initiate the service includes the first service type and the second service type.

Fig. 2 shows a specific process in which the terminal device camps in the first cell as the first user in scenario 1, and the terminal device camps in the second cell as the second user.

S201: The terminal device camps in the first cell as the first user.

S202: The terminal device receives the system information of the first cell, where the system information of the first cell includes the service type supported by the first cell.

S203: The terminal device determines that the first cell supports the first service type based on the system information of the first cell.

If the first cell does not support the second service type, in order to avoid that the service initiated by the terminal device (for example, the service of the second service type) does not match the service type supported by the first cell, the terminal device performs cell selection or selection as the second user. During the cell reselection process, the identity of the second user camps on the target cell at the same time. It should be understood that the target cell needs to meet the existing cell selection criteria, and the target cell supports the second service type, that is, when both conditions are met, the terminal device camps on the target cell as the second user. Therefore, when determining that a cell meets the criteria for cell selection, the terminal device also needs to read the system information of the cell to learn whether the cell supports the second service type.

It should be noted that whether the terminal device can reside in multiple cells can be configured by the network device or the core network device. In a possible design, the system information of the first cell further includes indication information indicating that the terminal device is allowed to camp on multiple cells. Therefore, the terminal device can obtain the indication information for allowing the terminal device to camp on multiple cells by reading the system information of the first cell. In another possible design, before S201, the terminal device receives configuration information sent from the core network device, the configuration information indicates that the terminal device is allowed to reside in multiple cells, for example, the configuration information is included in the registration response message. Exemplarily, a terminal device that has a core network device that requires high performance but is not sensitive to power saving sends the configuration information.

It should be understood that when the service type supported by the first cell includes the first service type and the second service type, the terminal device camping in the first cell can avoid the mismatch between the service initiated by the terminal device and the service type supported by the first cell The problem. At this time, the terminal device may not need to camp on other cells as the second user. Or, optionally, in addition to the service type supported by the first cell, the system information of the first cell also indicates the priority information of the service type supported by the first cell (that is, the cell’s priority or priority support Which business types, which business types are not emphasized or supported in priority, etc.). For example, the service type supported by the first cell is a service type list. According to the order of the service types in this list, the higher the priority of the service type, the higher the priority. Therefore, if the first service type is ranked first among the service types supported by the first cell, even if the first cell supports the second service type, since the priority of the second service type is low, the terminal device can The second user identity resides in the first cell of the second service type.

In addition, the system information of the first cell may also include at least one of frequency point information supporting at least one service type, or adjacent cell information supporting at least one service type, or service type information supported by at least one frequency point. For example, if the system information of the first cell includes the frequency points f1 and f2 that support the second service type, the terminal device can search for the target cell under the frequency point f1 and the frequency point f2. For another example, if the system information of the first cell includes that the cells supporting the second service type are the second cell and the third cell, the terminal device can determine whether there is a cell that meets the criteria for cell selection among the second cell and the third cell. For another example, the system information of the first cell includes that frequency f3 supports the third service type, and frequency f1 and frequency f2 support the second service type, and the terminal device can search for the target cell under frequency f1 and frequency f2.

S204: The terminal device receives the system information of the second cell, where the system information of the second cell includes the service type supported by the second cell.

S205: The terminal device determines that the second cell supports the second service type based on the system information of the second cell, and the terminal device resides in the second cell as the second user.

Based on the above S203 content, assuming that the second cell satisfies the cell selection criteria, the terminal device receives the system information of the second cell, and determines whether the second cell supports the second service type based on the system information of the second cell. If so, the terminal device Camp in the second cell as the second user. Otherwise, the terminal device receives system information of other cells that meet the criteria for cell selection, and determines whether the cell supports the second service type.

Exemplarily, assuming that both the second cell and the third cell meet the cell selection criteria, the terminal device receives the system information of the second cell, and determines whether the second cell supports the second cell based on the service type supported by the second cell in the system information of the second cell. Two service types. If the second cell supports the second service type, the terminal device resides in the second cell as the second user. If the second cell does not support the second service type, the terminal device receives the system information of the third cell, Determine whether the third cell supports the second service type based on the service type supported by the third cell in the system information of the third cell. If the third cell supports the second service type, the terminal device resides in the third cell as the second user. If the third cell does not support the second service type, the terminal device continues to search for a cell that meets the cell selection criterion and supports the second service type. Optionally, when the second cell and the third cell both support the second service type, the second service type is selected as the cell to be supported with higher priority. For example, the second service type is the second cell in the system information broadcast by the second cell The first in the list of supported service types, and the second service type is not the first in the list of service types supported by the third cell in the system information broadcast by the third cell, the terminal device selects the second cell to camp on.

It should be understood that, in addition to the second service type, the service type supported by the second cell may also include the first service type and/or other service types, which is not limited in this application.

Based on the above scenario 1, after the terminal device camps in the first cell as the first user and camps in the second cell as the second user, when the terminal device needs to initiate a service, the terminal device starts from the service type based on the service type required to initiate the service. Select one of the first cell and the second cell to initiate the RRC connection establishment process or the RRC connection recovery process. Therefore, the method of Embodiment 1 can avoid the problem that the service initiated by the terminal device and the network slice supported by the cell where it resides may not match, which affects the user experience.

Exemplarily, if the terminal device is in an idle state and the service type that the terminal device needs to initiate a service is the first service type, the terminal device selects the first cell to initiate the RRC connection establishment process. If the terminal device is in the inactive state and the service type required by the terminal device to initiate a service is the first service type, the terminal device selects the first cell to initiate the RRC connection recovery process.

It should be understood that in scenario 1 above, only the service types supported by the terminal equipment for initiating services including the first service type and the second service type are taken as an example to illustrate that the terminal equipment resides in the first cell as the first user, and the terminal equipment uses the second The specific process of the user identity camping on the second cell. In actual applications, the service type supported by the terminal device to initiate the service may also include the third service type and other service types, and the first SIM may also support the third user identity or more user identities, which is not limited in this application.

In an example, the service types supported by the terminal device for initiating services are service type 1, service type 2, and service type 3. The terminal device resides in cell 1 as the first user. If cell 1 only supports service type 1 and service Type 2, the terminal device also needs to camp on a cell that supports service type 3 as the second user.

In another example, the service types supported by the terminal device for initiating services are service type 1, service type 2, and service type 3. The terminal device resides in cell 1 as the first user. If cell 1 only supports service type 1, Then the terminal device also needs to reside in the cell supporting service type 2 and service type 3 as the second user, or the terminal device needs to reside in the cell supporting service type 2 as the second user, and as the third user The identity resides in a cell that supports service type 3.

Scenario 2: The network slice supported by the terminal device includes the first network slice and the second network slice.

As shown in FIG. 3, in scenario 2, the terminal device camps in the first cell as the first user, and the terminal device camps in the second cell as the second user in the specific process.

S301: The terminal device camps in the first cell as the first user.

S302: The terminal device receives the system information of the first cell, where the system information of the first cell includes network slices supported by the first cell.

S303: The terminal device determines that the first cell supports the first network slice based on the system information of the first cell.

If the first cell does not support the second network slice, in order to avoid that the service initiated by the terminal device (for example, the network slice corresponding to the service is the second network slice) does not match the network slice supported by the first cell, the terminal device assumes the identity of the second user Perform a cell selection or cell reselection process, and camp on the target cell at the same time as the second user. It should be understood that the target cell needs to meet the existing cell selection criteria, and the target cell supports the second network slice, that is, when both conditions are met, the terminal device camps on the target cell with the second device. Therefore, when determining that a cell meets the criteria for cell selection, the terminal device also needs to read the system information of the cell to learn whether the cell supports the second network slice.

It should be noted that whether the terminal device can reside in multiple cells can be configured by the network device or the core network device. In a possible design, the system information of the first cell further includes indication information indicating that the terminal device is allowed to camp on multiple cells. Therefore, the terminal device can obtain the indication information for allowing the terminal device to camp on multiple cells by reading the system information of the first cell. In another possible design, before S301, the terminal device receives configuration information sent from the core network device, and the configuration information indicates that the terminal device is allowed to reside in multiple cells. For example, the configuration information is included in the registration response message. Exemplarily, a terminal device that has a core network device that requires high performance but is not sensitive to power saving sends the configuration information.

It should be understood that when the network slice supported by the first cell includes the first network slice and the second network slice, the terminal device camping on the first cell can prevent the service initiated by the terminal device from mismatching the network slice supported by the first cell The problem. At this time, the terminal device may not need to camp on other cells as the second user. Or, optionally, in addition to the network slice supported by the first cell, the system information of the first cell also indicates the priority information of the first cell to support the network slice (that is, the cell focuses or preferentially supports the network slice). Which network slices, which network slices are not emphasized or supported first, etc.). For example, the network slice supported by the first cell is a list of network slices. According to the sequence of the network slices in this list, the higher the priority of the network slice, the higher the priority. Therefore, if the first network slice is ranked first among the network slices supported by the first cell, even if the first cell supports the second network slice, since the priority of the second network slice is low, the terminal device can The second user identity resides in the first cell of the second network slice.

In addition, the system information of the first cell may also include at least one of frequency information supporting at least one network slice, or adjacent cell information supporting at least one network slice, or network slice information supported by at least one frequency. For example, if the system information of the first cell includes that the frequency points supporting the second network slice are f1 and f2, the terminal device can search for the target cell under the frequency point f1 and the frequency point f2. For another example, if the system information of the first cell includes that the cells supporting the second network slice are the second cell and the third cell, the terminal device can determine whether there is a cell that meets the criteria for cell selection among the second cell and the third cell. For another example, the system information of the first cell includes that the frequency point f3 supports the third network slice, and the frequency point f1 and the frequency point f2 support the second network slice, and the terminal device can search for the target cell under the frequency point f1 and the frequency point f2.

S304: The terminal device receives the system information of the second cell, where the system information of the second cell includes network slices supported by the second cell.

S305: The terminal device determines that the second cell supports the second network slice based on the system information of the second cell, and the terminal device resides in the second cell as the second user.

Based on the above S303 content, assuming that the second cell meets the cell selection criteria, the terminal device receives the system information of the second cell, and determines whether the second cell supports the second network slice based on the system information of the second cell. If so, the terminal device Camp in the second cell as the second user. Otherwise, the terminal device receives system information of other cells that meet the criteria for cell selection, and determines whether the cell supports the second network slice.

Exemplarily, assuming that both the second cell and the third cell meet the cell selection criteria, the terminal device receives the system information of the second cell, and determines whether the second cell supports the second cell based on the network slice supported by the second cell in the system information of the second cell. Two network slicing, if the second cell supports the second network slicing, the terminal device resides in the second cell as the second user; if the second cell does not support the second network slicing, the terminal device receives the system information of the third cell, Determine whether the third cell supports the second network slice based on the network slice supported by the third cell in the system information of the third cell. If the third cell supports the second network slice, the terminal device resides in the third cell as the second user. If the third cell does not support the second network slice, the terminal device continues to search for a cell that meets the cell selection criterion and supports the second network slice. Optionally, when the second cell and the third cell both support the second network slice, the second network slice is selected as the cell to be supported with higher priority. For example, the second network slice is the second cell in the system information broadcast by the second cell If the second network slice is not the first in the list of network slices supported by the third cell in the system information broadcast by the third cell, the terminal device selects the second cell to camp on.

It should be understood that, in addition to the second network slice, the network slice supported by the second cell may also include the first network slice and/or other network slices, which is not limited in this application.

Based on the above scenario 2, after the terminal device camps in the first cell as the first user and camps in the second cell as the second user, when the terminal device needs to initiate a service, the terminal device is based on the network slice corresponding to the required service. Select a cell from the first cell and the second cell to initiate the RRC connection establishment process or the RRC connection recovery process. Therefore, the method of Embodiment 1 can avoid the problem that the service initiated by the terminal device and the network slice supported by the cell where it resides may not match, which affects the user experience.

Exemplarily, if the terminal device is in an idle state and the network slice corresponding to the service that the terminal device needs to initiate is the first network slice, the terminal device selects the first cell to initiate the RRC connection establishment process. If the terminal device is in the inactive state and the network slice corresponding to the service that the terminal device needs to initiate is the second network slice, the terminal device selects the second cell to initiate the RRC connection recovery process.

It should be understood that the above scenario 2 only takes the network slices supported by the terminal device including the first network slice and the second network slice as an example to illustrate that the terminal device resides in the first cell as the first user, and the terminal device is the second user. The specific process of camping on the second cell. In practical applications, the network slices supported by the terminal device may also include the third network slice and other network slices, and the first SIM may also support the third user identity or other user identities, which is not limited in this application.

In an example, the network slices supported by the terminal device are eMBB, URLLC, and mMTC. The terminal device resides in cell 1 as the first user. If cell1 only supports eMBB and URLLC, the terminal device also needs to use the second user The identity resides in a cell that supports mMTC.

In another example, the network slices supported by the terminal device are eMBB, URLLC, and mMTC. The terminal device resides in cell 1 as the first user. If cell1 only supports eMBB, the terminal device also needs to be the second user. Camping on a cell that supports URLLC and mMTC, or the terminal device needs to camp on a cell that supports URLLC as a second user, and the terminal device needs to camp on a cell that supports mMTC as a third user.

In addition, when the terminal device determines that the second cell meets the cell selection criteria and supports the second service type or second network slice, the terminal device also needs to determine whether the second cell is in the registration area of the terminal device or in the RNA of the terminal device. In a possible design, the selected second cell is a cell in the registration area of the terminal device or in the RNA of the terminal device. It can also be described as that the first cell and the second cell are in the registration area of the terminal device or in the access network notification area RNA of the terminal device, that is, the second cell needs to be in the same registration area or in the same registration area as the first cell. Within an RNA.

In an example, if the terminal device is in an idle state, the terminal device determines that the second cell satisfies the criteria for cell selection, supports the second service type, and the second cell is in the registration area of the terminal device, and the terminal device acts as the second user. Camp in the second cell.

In another example, if the terminal device is in the inactive state, the terminal device determines that the second cell satisfies the criteria for cell selection, supports the second service type, and the second cell is in the RNA of the terminal device, and the terminal device uses the second user The identity resides in the second cell.

Further, as the terminal equipment moves, each user identity performs independent cell reselection. In addition to the existing cell reselection criteria, it is assumed that the first cell supports the first service type and the second cell supports the second service type. The terminal device is supported to initiate a service of the first service type, and the terminal device resides in the first cell as a first user. In order to support the terminal device to initiate a service of the second service type, the terminal device resides in the second cell as a second user. If the terminal equipment reselects from the first cell to the third cell as the first user, the service type supported by the third cell needs to include the first service type; if the terminal equipment reselects from the second cell to the third cell as the second user Four cells, the service type supported by the fourth cell needs to include the second service type.

Further, in addition to the existing cell reselection criteria, for the above scenario 1 and scenario 2, the following possible designs may also be included:

In a possible design, the terminal device performs cell reselection from the second cell to the third cell as the second user. It needs to satisfy that the third cell is in the registration area of the terminal device or in the RNA of the terminal device. Community. Since the reselected cell is not in the registration area of the terminal device or in the terminal device's RNA, the terminal device needs to enter the connected state. Therefore, the above design can avoid the terminal device from entering the connection due to the second user identity cell reselection state. Further, assuming that the first cell supports the first service type, the second cell supports the second service type, the terminal device camps in the first cell as the first user, and the terminal device camps in the second cell as the second user, then the first cell The service types supported by the three cells include the second service type. Therefore, the third cell needs to meet the cell reselection criteria, and the service type supported by the third cell includes the second service type, and the third cell is in the registration area of the terminal device (the corresponding terminal device is in an idle state) or in the terminal device Within the RNA (corresponding to the terminal device is in the inactive state), a total of three conditions.

It should be understood that the above design can also be extended to the case where the terminal device resides in three or more cells.

Illustratively, suppose that cell1 supports the first service type, cell2 supports the second service type, and cell3 supports the third service type. The terminal device resides in cell1 as the first user, and the terminal device resides in cell2 as the second user. The terminal device Camp on cell3 as a third user, where cell1 is the main camping cell, cell2 is the auxiliary camping cell, and cell3 is the auxiliary camping cell. If the terminal device is in an idle state, the terminal device performs cell reselection from cell2 to cell5 as the second user. Cell5 meets the criteria for cell reselection, and the service type supported by cell5 includes the second service type, and cell5 is in the terminal equipment Within the registered area. The terminal device performs cell reselection from cell3 to cell4 as the third user. Cell4 meets the criteria for cell reselection, and the service type supported by cell4 includes the third service type, and cell4 is in the registration area of the terminal device. If the terminal device is in the inactive state, the terminal device performs cell reselection from cell2 to cell5 as the second user. Cell5 meets the criteria for cell reselection, and the service type supported by cell5 includes the second service type, and cell5 is in the terminal Inside the RNA of the device. The terminal device performs cell reselection from cell3 to cell4 as the third user. Cell4 meets the cell reselection criteria, and the service type supported by cell4 includes the third service type, and cell4 is in the RNA of the terminal device.

In another possible design, the terminal device performs cell reselection as the first user and reselects from the first cell to the fourth cell. When the fourth cell is not in the registration area of the terminal device, the terminal device initiates the registration area update process , Or when the fourth cell is not in the RNA of the terminal device, the terminal device initiates the RNA update process. The terminal device performs cell reselection as the second user from the second cell to the third cell. When the third cell is not in the terminal device's registration area or not in the terminal device's RNA, the terminal device does not initiate the registration area update process Or the RNA renewal process. With the above design, when a terminal device is camped on multiple cells, one of the cells is the primary camping cell (for example, the first cell after the terminal device is turned on is the primary camping cell, and the cell is based on the primary camping cell. The target cell after reselection is also the primary camping cell), and other cells are secondary camping cells. When the primary camping cell is changed (for example, cell reselection), when the changed primary camping cell is not in the registration area of the terminal device , Initiate the registration area update process, or when the changed primary camping cell is not in the RNA of the terminal device, initiate the RNA update process; and the replacement of the auxiliary camping cell does not trigger the registration area update process or the RNA update process, that is, always It is determined whether to initiate the registration area update process or the RNA update process based on the replacement of the primary camping cell, and the replacement of other camping cells does not trigger the above process. Therefore, it can be avoided that the terminal device enters the connected state frequently due to cell reselection. Exemplarily, as shown in FIG. 4, the terminal device camps on cell1 as the first user, and cell1 is the main camping cell, and as the second user, it camps on cell2, and cell2 is the auxiliary camping cell.

In the same way, the above design can also be extended to the situation where the terminal equipment resides in three or more cells.

Illustratively, suppose that cell1 supports the first service type, cell2 supports the second service type, and cell3 supports the third service type. The terminal device resides in cell1 as the first user, and the terminal device resides in cell2 as the second user. The terminal device Camp on cell3 as a third user, where cell1 is the main camping cell, cell2 is the auxiliary camping cell, and cell3 is the auxiliary camping cell. If the terminal device is in an idle state, the terminal device performs cell reselection from cell1 to cell5 as the first user. Cell5 meets the criteria for cell reselection, and the service type supported by cell5 includes the first service type. When cell5 is not in the registration area of the terminal device, the terminal device initiates the registration area update process. The terminal device performs cell reselection from cell3 to cell4 as the third user. Cell4 meets the criteria for cell reselection, and the service type supported by cell4 includes the third service type. If cell4 is not in the registration area of the terminal device, the terminal device does not initiate the registration area update process. The terminal device performs cell reselection from cell2 to cell7 as the second user identity, cell7 satisfies the cell reselection criterion, and the service type supported by cell7 includes the second service type. If cell7 is not in the registration area of the terminal device, the terminal device does not initiate the registration area update process.

It should be understood that the above example is described by taking the service type as an example, which is not a limitation of this application, and the above design can also be applied to the case of network slicing, and will not be repeated here.

In addition, for the foregoing scenario 1 and scenario 2, in a possible design, the terminal device monitors the paging message in the first cell and does not monitor the paging message in the second cell, so as to achieve the effect of saving power for the terminal device.

Illustratively, suppose that cell1 supports the first service type, cell2 supports the second service type, and cell3 supports the third service type. The terminal device resides in cell1 as the first user, and the terminal device resides in cell2 as the second user. The terminal device Camp on cell3 as a third user, where cell1 is the main camping cell, cell2 is the auxiliary camping cell, and cell3 is the auxiliary camping cell. The terminal device monitors paging messages in cell1, and does not monitor paging messages in cell2 and cell3.

Example 2:

An embodiment of the present application provides a method for camping on a cell. The method includes: a terminal device supports a first SIM. The terminal device resides in the first cell and the second cell as a user supported by the first SIM.

In the embodiment of the present application, the terminal device supports the first SIM, and the first SIM supports one user identity. Here, "user identity" is a logical concept. For example, "a user identity" can correspond to a SIM card or a subscriber's information or a virtual SIM card or a user identity (such as international mobile subscriber identity (IMSI) or a temporary mobile subscriber identity). identity, TMSI), etc.).

In Embodiment 2, the terminal device installs a SIM card, and it is considered that the terminal device supports a user identity. In other words, there is a one-to-one relationship between the SIM card and the user identity.

The following describes the specific process of the terminal device camping on the first cell and the second cell for two different scenarios.

Figure 5 shows the specific process of the terminal device camping on the first cell and the second cell in scenario 1.

S501: The terminal device camps in the first cell as the user identity of the first SIM.

S502: The terminal device receives the system information of the first cell, where the system information of the first cell includes the service type supported by the first cell.

S503: The terminal device determines that the first cell supports the first service type based on the system information of the first cell.

If the first cell does not support the second service type, in order to avoid that the service initiated by the terminal device (for example, the service of the second service type) does not match the service type supported by the first cell, the terminal device performs a cell selection or cell reselection process, At the same time camp on the target cell. It should be understood that the target cell needs to meet existing cell selection criteria, and the target cell supports the second service type, that is, when both conditions are met, the terminal device camps on the target cell. Therefore, when determining that a cell meets the criteria for cell selection, the terminal device also needs to read the system information of the cell to learn whether the cell supports the second service type.

It should be noted that whether the terminal device can reside in multiple cells can be configured by the network device or the core network device. In a possible design, the system information of the first cell further includes indication information indicating that the terminal device is allowed to camp on multiple cells. Therefore, the terminal device can obtain the indication information for allowing the terminal device to camp on multiple cells by reading the system information of the first cell. In another possible design, before S501, the terminal device receives configuration information sent from the core network device, and the configuration information indicates that the terminal device is allowed to reside in multiple cells. For example, the configuration information is included in the registration response message. Exemplarily, a terminal device that has a core network device that requires high performance but is not sensitive to power saving sends the configuration information.

It should be understood that when the service type supported by the first cell includes the first service type and the second service type, the terminal device camping in the first cell can avoid the mismatch between the service initiated by the terminal device and the service type supported by the first cell The problem. At this time, the terminal device may not need to camp in other cells. Or, optionally, in addition to the service type supported by the first cell, the system information of the first cell also indicates the priority information of the service type supported by the first cell (that is, the cell’s priority or priority support Which business types, which business types are not emphasized or supported in priority, etc.). For example, the service type supported by the first cell is a service type list. According to the order of the service types in this list, the higher the priority of the service type, the higher the priority. Therefore, if the first service type is ranked first among the service types supported by the first cell, even if the first cell supports the second service type, since the priority of the second service type is low, the terminal device can still be stationed. Leave it to the cell with the second service type in the first place.

S504: The terminal device receives the system information of the second cell, where the system information of the second cell includes the service type supported by the second cell.

S505: The terminal device determines that the second cell supports the second service type based on the system information of the second cell, and the terminal device resides in the second cell as a user identity supported by the first SIM.

Based on the above S503 content, assuming that the second cell satisfies the cell selection criteria, the terminal device receives the system information of the second cell, and determines whether the second cell supports the second service type based on the system information of the second cell. If so, the terminal device Camp on the second cell as a user supported by the first SIM. Otherwise, the terminal device receives system information of other cells that meet the criteria for cell selection, and determines whether the cell supports the second service type.

Exemplarily, assuming that both the second cell and the third cell meet the cell selection criteria, the terminal device receives the system information of the second cell, and determines whether the second cell supports the second cell based on the service type supported by the second cell in the system information of the second cell. The second service type. If the second cell supports the second service type, the terminal device stays in the second cell. If the second cell does not support the second service type, the terminal device receives the system information of the third cell based on the third cell’s In the system information, the service type supported by the third cell determines whether the third cell supports the second service type. If the third cell supports the second service type, the terminal device stays in the third cell; if the third cell does not support the second service type , The terminal device continues to search for a cell that meets the cell selection criteria and supports the second service type. Optionally, when the second cell and the third cell both support the second service type, the second service type is selected as the cell to be supported with higher priority. For example, the second service type is the second cell in the system information broadcast by the second cell The first in the list of supported service types, and the second service type is not the first in the list of service types supported by the third cell in the system information broadcast by the third cell, the terminal device selects the second cell to camp on.

Based on the above scenario 1, after the terminal device camps in the first cell and the second cell, when the terminal device needs to initiate a service, the terminal device selects a cell from the first cell and the second cell based on the type of service required to initiate the service RRC connection establishment process or RRC connection recovery process. Therefore, adopting the method of Embodiment 2 can avoid the problem that the service initiated by the terminal device and the network slice supported by the cell where it resides may not match, which affects the user experience.

It should be understood that the above scenario 1 only takes the service types supported by the terminal device to initiate services including the first service type and the second service type as an example to illustrate the specific process of the terminal device camping on the first cell and the second cell. In actual applications, the service type supported by the terminal device to initiate the service may also include the third service type and other service types, which are not limited in this application.

In an example, the service types supported by the terminal device for initiating services are service type 1, service type 2, and service type 3. The terminal device supports the first SIM, and the terminal device resides in the cell 1 as a user supported by the first SIM. If cell1 only supports service type 1 and service type 2, the terminal device also needs to reside in a cell that supports service type 3 as a user identity supported by the first SIM.

In another example, the service types supported by the terminal device for initiating services are service type 1, service type 2, and service type 3. The terminal device supports the first SIM, and the terminal device resides in the cell as a user supported by the first SIM. 1. If cell1 only supports service type 1, the terminal device also needs to reside in a cell that supports service type 2 and service type 3 as a user supported by the first SIM, or the terminal device needs to be a user supported by the first SIM The identity camps on the cell that supports service type 2 and the identity of the user supported by the first SIM resides on the cell that supports service type 3.

Figure 6 shows the specific process of the terminal device camping on the first cell and the second cell in scenario 2.

S601: The terminal device camps in the first cell as a user identity supported by the first SIM.

S602: The terminal device receives the system information of the first cell, where the system information of the first cell includes network slices supported by the first cell.

S603: The terminal device determines that the first cell supports the first network slice based on the system information of the first cell.

If the first cell does not support the second network slice, in order to avoid that the service initiated by the terminal device (for example, the network slice corresponding to the service is the second network slice) does not match the network slice supported by the first cell, the terminal device performs cell selection or cell selection. Re-selection process, while camping on the target cell. It should be understood that the target cell needs to meet the existing cell selection criteria, and the target cell supports the second network slice, that is, when both conditions are met, the terminal device camps on the target cell. Therefore, when determining that a cell meets the criteria for cell selection, the terminal device also needs to read the system information of the cell to learn whether the cell supports the second network slice.

It should be noted that whether the terminal device can reside in multiple cells can be configured by the network device or the core network device. In a possible design, the system information of the first cell further includes indication information indicating that the terminal device is allowed to camp on multiple cells. Therefore, the terminal device can obtain the indication information for allowing the terminal device to camp on multiple cells by reading the system information of the first cell. In another possible design, before S601, the terminal device receives configuration information sent from the core network device, and the configuration information indicates that the terminal device is allowed to reside in multiple cells. For example, the configuration information is included in the registration response message. Exemplarily, a terminal device that has a core network device that requires high performance but is not sensitive to power saving sends the configuration information.

It should be understood that when the network slice supported by the first cell includes the first network slice and the second network slice, the terminal device camping on the first cell can prevent the service initiated by the terminal device from mismatching the network slice supported by the first cell The problem. At this time, the terminal device may not need to camp in other cells. Or, optionally, in addition to the network slice supported by the first cell, the system information of the first cell also indicates the priority information of the first cell to support the network slice (that is, the cell focuses or preferentially supports the network slice). Which network slices, which network slices are not emphasized or supported first, etc.). For example, the network slice supported by the first cell is a list of network slices. According to the sequence of the network slices in this list, the higher the priority of the network slice, the higher the priority. Therefore, if the first network slice is ranked first among the network slices supported by the first cell, even if the first cell supports the second network slice, since the priority of the second network slice is low, the terminal device can still be camped on. Leave it to the first cell in the second network slice.

In addition, the system information of the first cell may also include at least one of frequency information supporting at least one network slice, or adjacent cell information supporting at least one network slice, or network slice information supported by at least one frequency. For example, if the system information of the first cell includes the frequency points f1 and f2 that support the second network slice, the terminal device can search for the target cell under the frequency point f1 and the frequency point f2. For another example, if the system information of the first cell includes that the cells supporting the second network slice are the second cell and the third cell, the terminal device can determine whether there is a cell that meets the criteria for cell selection among the second cell and the third cell. For another example, the system information of the first cell includes that the frequency point f3 supports the third network slice, and the frequency point f1 and the frequency point f2 support the second network slice, and the terminal device can search for the target cell under the frequency point f1 and the frequency point f2.

S604: The terminal device receives the system information of the second cell, where the system information of the second cell includes network slices supported by the second cell.

S605: The terminal device determines that the second cell supports the second network slicing based on the system information of the second cell, and the terminal device resides in the second cell as a user identity supported by the first SIM.

Based on the content of S603 above, assuming that the second cell meets the cell selection criteria, the terminal device receives the system information of the second cell, and determines whether the second cell supports the second network slice based on the system information of the second cell. If so, the terminal device Camp on the second cell as a user supported by the first SIM. Otherwise, the terminal device receives system information of other cells that meet the criteria for cell selection, and determines whether the cell supports the second network slice.

Exemplarily, assuming that both the second cell and the third cell meet the cell selection criteria, the terminal device receives the system information of the second cell, and determines whether the second cell supports the second cell based on the network slice supported by the second cell in the system information of the second cell. Two network slicing. If the second cell supports the second network slicing, the terminal device stays in the second cell. If the second cell does not support the second network slicing, the terminal device receives the system information of the third cell, based on the third cell’s The network slicing supported by the third cell in the system information determines whether the third cell supports the second network slicing. If the third cell supports the second network slicing, the terminal device camps on the third cell. If the third cell does not support the second network slicing , The terminal device continues to search for a cell that meets the cell selection criterion and supports the second network slice. Optionally, when the second cell and the third cell both support the second network slice, the second network slice is selected as the cell to be supported with higher priority. For example, the second network slice is the second cell in the system information broadcast by the second cell If the second network slice is not the first in the list of network slices supported by the third cell in the system information broadcast by the third cell, the terminal device selects the second cell to camp on.

Based on the above scenario 2, after the terminal device camps in the first cell and the second cell, when the terminal device needs to initiate a service, the terminal device selects a cell from the first cell and the second cell based on the network slice corresponding to the required service initiated Initiate the RRC connection establishment process or the RRC connection recovery process. Therefore, adopting the method of Embodiment 2 can avoid the problem that the service initiated by the terminal device and the network slice supported by the cell where it resides may not match, which affects the user experience.

It should be understood that the foregoing scenario 2 only takes the network slices supported by the terminal device including the first network slice and the second network slice as an example to illustrate the specific process of the terminal device camping on the first cell and the second cell. In practical applications, the network slices supported by the terminal device may also include the third network slice and other network slices, which are not limited in this application.

In an example, the network slices supported by the terminal device are eMBB, URLLC, and mMTC. The terminal device supports the first SIM, and the terminal device resides in cell 1 as a user supported by the first SIM. If cell1 only supports eMBB and URLLC , The terminal device also needs to reside in a cell that supports mMTC as a user supported by the first SIM.

In another example, the network slices supported by the terminal device are eMBB, URLLC, and mMTC. The terminal device supports the first SIM, and the terminal device resides in cell 1 as a user supported by the first SIM. If cell1 only supports eMBB, The terminal device also needs to reside in a cell that supports URLLC and mMTC as a user supported by the first SIM, or the terminal device needs to reside in a cell that supports URLLC as a user supported by the first SIM, and the terminal device also needs to reside in a cell that supports URLLC as a user supported by the first SIM. Camp on a cell that supports mMTC as a user supported by the first SIM.

In addition, when the terminal device determines that the second cell meets the cell selection criteria and supports the second service type or second network slice, the terminal device also needs to determine whether the second cell is in the registration area of the terminal device or in the RNA of the terminal device. In a possible design, the selected second cell is in the registration area of the terminal device or a cell in the RNA of the terminal device. It can also be described as that the first cell and the second cell are in the registration area of the terminal device or in the access network notification area RNA of the terminal device, that is, the second cell needs to be in the same registration area or in the same registration area as the first cell. Within an RNA.

In an example, if the terminal device is in an idle state, the terminal device determines that the second cell satisfies the criteria for cell selection, supports the second service type, and the second cell is in the registration area of the terminal device, and the terminal device supports the first SIM The identity of the user camped in the second cell.

In another example, if the terminal device is in an inactive state, the terminal device determines that the second cell satisfies the criteria for cell selection, supports the second service type, and the second cell is in the RNA of the terminal device, and the terminal device uses the first SIM The supported user identity resides in the second cell.

Further, as the terminal equipment moves, each user identity performs independent cell reselection. In addition to the existing cell reselection criteria, it is assumed that the first cell supports the first service type and the second cell supports the second service type. Support terminal equipment to initiate services of the first service type, and the terminal equipment resides in the first cell as a user supported by the first SIM. In order to support the terminal equipment to initiate services of the second service type, the terminal equipment resides as a user supported by the first SIM. Stay in the second cell. If the terminal equipment reselects from the first cell to the third cell as a user supported by the first SIM, the service type supported by the third cell needs to include the first service type; if the terminal equipment reselects from the second cell to the fourth cell , The service type supported by the fourth cell needs to include the second service type.

Further, as the terminal equipment moves, each cell performs independent cell reselection. In addition to the existing cell reselection criteria, for the above scenario 1 and scenario 2, the following possible designs can also be included:

In a possible design, the terminal device performs cell reselection from the second cell to the third cell as a user supported by the first SIM. It needs to satisfy that the third cell is in the registration area of the terminal device or in the terminal device’s registration area. Cells within RNA. If the reselected cell is not in the registration area of the terminal device or in the RNA of the terminal device, the terminal device needs to enter the connected state. Therefore, the above design can prevent the terminal device from entering the connected state due to cell reselection. Further, assuming that the first cell supports the first service type, the second cell supports the second service type, and the terminal equipment resides in the first cell and the second cell as a user supported by the first SIM, the service type supported by the third cell Including the second type of business. Therefore, the third cell needs to meet the cell reselection criteria, and the service type supported by the third cell includes the second service type, and the third cell is in the registration area of the terminal device (the corresponding terminal device is in an idle state) or in the terminal device Within the RNA (corresponding to the terminal device is in the inactive state), a total of three conditions.

Illustratively, suppose that cell1 supports the first service type, cell2 supports the second service type, cell3 supports the third service type, and the terminal device supports the first SIM, and the terminal device resides in cell1, cell2, and cell3 as a user supported by the first SIM. , Among them, cell1 is the main camping cell, cell2 is the auxiliary camping cell, and cell3 is the auxiliary camping cell. If the terminal device is in an idle state, the terminal device performs cell reselection from cell2 to cell5 as a user supported by the first SIM. Cell5 meets the criteria for cell reselection, and the service types supported by cell5 include the second service type, and cell5 In the registration area of the terminal device. The terminal device performs cell reselection from cell3 to cell4 as a user supported by the first SIM. Cell4 meets the criteria for cell reselection, and the service type supported by cell4 includes the third service type, and cell4 is in the registration area of the terminal device . If the terminal device is in the inactive state, the terminal device performs cell reselection from cell2 to cell5 as a user supported by the first SIM, cell5 meets the cell reselection criteria, and the service type supported by cell5 includes the second service type, and cell5 is in the RNA of the terminal device. The terminal device performs cell reselection from cell3 to cell4 with the identity of the user supported by the first SIM. Cell4 meets the cell reselection criteria, and the service type supported by cell4 includes the third service type, and cell4 is in the RNA of the terminal device.

In another possible design, the terminal device performs cell reselection from the first cell to the fourth cell with the identity of the user supported by the first SIM. When the fourth cell is not in the registration area of the terminal device, the terminal device initiates registration During the area update process, or when the fourth cell is not in the RNA of the terminal device, the terminal device initiates the RNA update process. The terminal device performs cell reselection from the second cell to the third cell with the identity of the user supported by the first SIM. When the third cell is not in the registration area of the terminal device or not in the RNA of the terminal device, the terminal device does not initiate registration Regional renewal process or RNA renewal process. With the above design, when the terminal device camps on multiple cells with the identity of the user supported by the first SIM, one of the cells is the main camping cell (for example, the first camped cell after the terminal device is turned on is the main camping cell , The target cell after cell reselection based on the primary camping cell is also the primary camping cell), other cells are secondary camping cells, when the primary camping cell is changed (for example, cell reselection), when the changed primary camping cell When the cell is not in the registration area of the terminal device, the registration area update process is initiated, or when the changed primary camping cell is not in the RNA of the terminal device, the RNA update process is initiated; the replacement of the auxiliary camping cell does not trigger the registration area update process Or the RNA update process, that is, whether to initiate the registration area update process or the RNA update process is always based on the replacement of the main camping cell, and the replacement of other camping cells does not trigger the above process. Therefore, it can be avoided that the terminal device enters the connected state frequently due to cell reselection. For example, as shown in FIG. 7, the terminal device camps on cell1 and cell2, cell1 is the primary camping cell, and cell2 is the secondary camping cell.

Illustratively, suppose that cell1 supports the first service type, cell2 supports the second service type, cell3 supports the third service type, the terminal device supports the first SIM, and the terminal device resides in cell1, cell2, and cell3 as a user supported by the first SIM. , Among them, cell1 is the main camping cell, cell2 is the auxiliary camping cell, and cell3 is the auxiliary camping cell. If the terminal device is in an idle state, the terminal device performs cell reselection from cell1 to cell5 as the user identity supported by the first SIM, cell5 meets the cell reselection criterion, and the service type supported by cell5 includes the first service type. When cell5 is not in the registration area of the terminal device, the terminal device initiates the registration area update process. The terminal device performs cell reselection from cell3 to cell4 with the identity of the user supported by the first SIM. Cell4 meets the criteria for cell reselection, and the service type supported by cell4 includes the third service type. If cell4 is not in the registration area of the terminal device, the terminal device does not initiate the registration area update process. The terminal device performs cell reselection from cell2 to cell7 with the identity of the user supported by the first SIM. Cell7 meets the criteria for cell reselection, and the service type supported by cell7 includes the second service type. If cell7 is not in the registration area of the terminal device, the terminal device does not initiate the registration area update process.

Illustratively, suppose that cell1 supports the first service type, cell2 supports the second service type, cell3 supports the third service type, the terminal device supports the first SIM, and the terminal device resides in cell1, cell2, cell3 as a user supported by the first SIM. , Among them, cell1 is the main camping cell, cell2 is the auxiliary camping cell, and cell3 is the auxiliary camping cell. The terminal device monitors paging messages in cell1, and does not monitor paging messages in cell2 and cell3.

It is understandable that in this embodiment of the application, the terminal device and/or the network device can perform some or all of the steps in the embodiment of this application. These steps or operations are only examples, and the embodiments of this application can also perform other operations or various Deformation of the operation. In addition, each step may be executed in a different order presented in the embodiments of the present application, and it may not be necessary to perform all the operations in the embodiments of the present application.

In the various embodiments of this application, if there is no special description and logical conflict, the terms and/or descriptions between different embodiments are consistent and can be mutually cited. The technical features in different embodiments are based on their inherent Logical relationships can be combined to form new embodiments.

In the above-mentioned embodiments provided by the present application, the solutions of the communication methods provided by the embodiments of the present application are respectively introduced from the perspective of each network element itself and the interaction between each network element. It can be understood that each network element, such as a network device and a terminal device, includes hardware structures and/or software modules corresponding to each function in order to realize the above-mentioned functions. Those skilled in the art should easily realize that in combination with the units and algorithm steps of the examples 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 certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

Similar to the above-mentioned concept, as shown in FIG. 8, an embodiment of the present application further provides an apparatus 800 including a transceiving unit 802 and a processing unit 801.

In an example, the apparatus 800 is used to implement the function of the terminal device in the foregoing method. The device can be a terminal device, or a device in a terminal device, such as a chip system.

The processing unit 801 calls the transceiver unit 802 to perform: camping on the first cell as the first user, and camping on the second cell as the second user. The device supports a first SIM, and the first SIM supports a first user identity and a second user identity.

Wherein, the processing unit 801 calls the transceiver unit 802 to execute: camping on the first cell and the second cell as a user supported by the first SIM. The device supports a first SIM, and the first SIM supports a user identity.

For the specific execution process of the processing unit 801 and the transceiver unit 802, refer to the record in the above method embodiment. The division of modules in the embodiments of this application is illustrative, and is only a logical function division. In actual implementation, there may be other division methods. In addition, the functional modules in the various embodiments of this application can be integrated into one process. In the device, it can also exist alone physically, or two or more modules can be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware or software functional modules.

As another optional variation, the device may be a chip system. In the embodiments of the present application, the chip system may be composed of chips, or may include chips and other discrete devices. Exemplarily, the device includes a processor and an interface, and the interface may be an input/output interface. Among them, the processor completes the function of the aforementioned processing unit 801, and the interface completes the function of the aforementioned transceiver unit 802. The device may also include a memory, where the memory is used to store a program that can be run on the processor, and the processor implements the method of each of the foregoing embodiments when the program is executed by the processor.

Similar to the above-mentioned concept, as shown in FIG. 9, an embodiment of the present application further provides an apparatus 900. The device 900 includes: a communication interface 901, at least one processor 902, and at least one memory 903. The communication interface 901 is used to communicate with other devices through the transmission medium, so that the device used in the device 900 can communicate with other devices. The memory 903 is used to store computer programs. The processor 902 calls the computer program stored in the memory 903, and transmits and receives data through the communication interface 901 to implement the method in the foregoing embodiment.

Exemplarily, when the apparatus is a terminal device, the memory 903 is used to store a computer program; the processor 902 calls the computer program stored in the memory 903, and executes the method executed by the terminal device in the foregoing embodiment through the communication interface 901.

In the embodiment of the present application, the communication interface 901 may be a transceiver, a circuit, a bus, a module, or other types of communication interfaces. The processor 902 may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and can implement or execute the The disclosed methods, steps and logic block diagrams. The general-purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in combination with the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor. The memory 903 may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., and may also be a volatile memory (volatile memory), such as random access memory (random access memory). -access memory, RAM). The memory is any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited to this. The memory in the embodiment of the present application may also be a circuit or any other device capable of realizing a storage function. The memory 903 and the processor 902 are coupled. The coupling in the embodiments of the present application is an interval coupling or a communication connection between devices, units or modules, which can be electrical, mechanical or other forms, and is used for information exchange between devices, units or modules. As another implementation, the memory 903 may also be located outside the apparatus 900. The processor 902 may cooperate with the memory 903 to operate. The processor 902 can execute program instructions stored in the memory 903. At least one of the at least one memory 903 may also be included in the processor 902. The embodiment of the present application does not limit the connection medium between the aforementioned communication interface 901, the processor 902, and the memory 903. For example, in the embodiment of the present application in FIG. 9, the memory 903, the processor 902, and the communication interface 901 may be connected by a bus, and the bus may be divided into an address bus, a data bus, and a control bus.

It can be understood that the apparatus in the embodiment shown in FIG. 8 may be implemented by the apparatus 900 shown in FIG. 9. Specifically, the processing unit 801 may be implemented by the processor 902, and the transceiver unit 802 may be implemented by the communication interface 901.

The embodiments of the present application also provide a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and when the computer program runs on a computer, the computer executes the methods shown in each of the foregoing embodiments.

The methods provided in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented by software, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present invention are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, network equipment, user equipment, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). 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 a data center integrated with one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a digital video disc (digital video disc, DVD for short)), or a semiconductor medium (for example, a solid state disk Solid State Disk SSD), etc. .

As mentioned above, the above embodiments are only used to introduce the technical solutions of the present application in detail, but the description of the above embodiments is only used to help understand the methods of the embodiments of the present invention, and should not be construed as limiting the embodiments of the present invention. Any changes or replacements that can be easily conceived by those skilled in the art should be covered by the protection scope of the embodiments of the present invention.

Claims

A cell camping method, characterized in that the method includes:

The terminal device supports a first user identification module SIM, and the first SIM supports a first user identity and a second user identity;

The terminal device camps in the first cell as the first user, and the terminal device camps in the second cell as the second user;

The first cell supports a first service type, and the second cell supports a second service type;

and / or

The first cell supports a first network slice, and the second cell supports a second network slice.
The method of claim 1, further comprising:

The terminal device selects a cell from the first cell and the second cell to initiate a radio resource control RRC connection establishment process or an RRC connection based on the service type of the service to be initiated and/or the network slice corresponding to the service to be initiated. Recovery process.
The method of claim 1 or 2, further comprising:

The terminal device receives configuration information sent from a core network device, where the configuration information indicates that the terminal device is allowed to camp on multiple cells.
The method according to claim 1 or 2, characterized in that, before the terminal device camps on the second cell as the second user, the method further comprises:

The terminal device camps on the first cell as the first user;

The terminal device receives the system information of the first cell, where the system information of the first cell includes indication information, and the indication information indicates that the terminal device is allowed to camp on multiple cells.
The method according to claim 4, wherein the system information of the first cell includes a service type supported by the first cell;

The terminal device camping on the second cell as the second user includes:

The service type supported by the terminal device to initiate the service includes the first service type and the second service type;

Determining, by the terminal device, that the first cell supports the first service type based on the system information of the first cell;

Receiving, by the terminal device, the system information of the second cell, where the system information of the second cell includes the service type supported by the second cell;

The terminal device determines that the second cell supports the second service type based on the system information of the second cell, and the terminal device camps on the second cell as the second user.
The method according to claim 4, wherein the system information of the first cell includes a network slice supported by the first cell;

The terminal device camping on the second cell as the second user includes:

The network slices supported by the terminal device include the first network slice and the second network slice;

Determining, by the terminal device, that the first cell supports the first network slice based on the system information of the first cell;

Receiving, by the terminal device, system information of the second cell, where the system information of the second cell includes network slices supported by the second cell;

The terminal device determines that the second cell supports the second network segmentation based on the system information of the second cell, and the terminal device camps on the second cell as the second user.
The method according to claim 4, wherein the system information of the first cell includes frequency point information supporting at least one service type or network slice, or cell information supporting at least one service type or network slice, Or at least one of service type information or network slice information supported by at least one frequency point.
The method according to any one of claims 1-7, wherein the first cell and the second cell are in a registration area of the terminal device or in an access network notification area of the terminal device Within RNA.
The method according to any one of claims 1-8, further comprising:

The terminal device performs cell reselection with the identity of the second user from the second cell to a third cell, and the third cell is in the registration area of the terminal device or in the RNA of the terminal device .
The method according to any one of claims 1-7, further comprising:

The terminal device performs cell reselection from the first cell to the fourth cell as the first user identity, and when the fourth cell is not in the registration area of the terminal device or is not in the RNA of the terminal device, Then the terminal device initiates a registration area update process or an RNA update process;

The terminal device performs cell reselection from the second cell to a third cell as the second user, when the third cell is not in the registration area of the terminal device or is not in the RNA of the terminal device , The terminal device does not initiate the registration area update process or the RNA update process.
The method according to any one of claims 1-10, further comprising:

The terminal device monitors paging messages in the first cell, and does not monitor paging messages in the second cell.
A cell camping device, characterized in that the device includes: a processing unit and a transceiver unit;

The processing unit invokes the transceiver unit to execute:

Camp on the first cell as the first user, and camp on the second cell as the second user;

The device supports a first subscriber identity module SIM, the first SIM supports a first user identity and a second user identity; the first cell supports a first service type, and the second cell supports a second service type; and /Or the first cell supports a first network slice, and the second cell supports a second network slice.
The device of claim 12, wherein the processing unit invokes the transceiver unit to execute:

A cell is selected from the first cell and the second cell to initiate an RRC connection establishment process or an RRC connection recovery process based on the service type of the service to be initiated and/or the network slice corresponding to the service to be initiated.
The device according to claim 12 or 13, wherein the transceiver unit is configured to receive configuration information sent from a core network device, the configuration information indicating that the device is allowed to camp on multiple cells.
The device according to claim 12 or 13, wherein the processing unit invokes the transceiver unit to execute: camping on the first cell as the first user;

The transceiver unit is further configured to receive system information of the first cell, where the system information of the first cell includes indication information, and the indication information indicates that the device is allowed to camp on multiple cells.
The apparatus according to claim 15, wherein the system information of the first cell includes a service type supported by the first cell;

The processing unit is configured to determine based on the system information of the first cell that the first cell supports the first service type; the service type supported by the device for initiating the service includes the first service type and the The second type of business;

The transceiver unit is configured to receive system information of the second cell, where the system information of the second cell includes the service type supported by the second cell;

The processing unit invokes the transceiver unit to perform: determining that the second cell supports the second service type based on the system information of the second cell, and camping on the second cell as the second user.
The apparatus according to claim 15, wherein the system information of the first cell includes a network slice supported by the first cell;

The processing unit is configured to determine, based on the system information of the first cell, that the first cell supports the first network slice; the network slices supported by the apparatus include the first network slice and the second network slice;

The transceiver unit is configured to receive system information of the second cell, where the system information of the second cell includes network slices supported by the second cell;

The processing unit invokes the transceiver unit to perform: determining that the second cell supports the second network slice based on the system information of the second cell, and camping on the second cell as the second user.
The apparatus according to claim 15, wherein the system information of the first cell comprises frequency information supporting at least one service type or network slice, or cell information supporting at least one service type or network slice, Or at least one of service type information or network slice information supported by at least one frequency point.
The device according to any one of claims 12-18, wherein the first cell and the second cell are in the registration area of the device or in the RNA of the device.
The device according to any one of claims 12-19, further comprising:

The processing unit invokes the transceiver unit to perform: perform cell reselection as the second user from the second cell to a third cell, and the third cell is in the registration area of the device or in the registered area of the device. Inside the RNA of the device.
The device according to any one of claims 12-18, further comprising:

The processing unit invokes the transceiver unit to execute: perform cell reselection as the first user from the first cell to the fourth cell, when the fourth cell is not in the registration area of the device or is not in the registration area of the device. In the RNA of the device, the registration area update process or the RNA update process is initiated;

The processing unit invokes the transceiver unit to execute: perform cell reselection from the second cell to the third cell as the second user, when the third cell is not in the registration area of the device or is not in the registered area of the device; In the RNA of the device, no registration area update process or RNA update process is initiated.
The device according to any one of claims 12-21, further comprising:

The processing unit invokes the transceiver unit to perform: monitoring paging messages in the first cell, and not monitoring paging messages in the second cell.
A device, characterized in that the device includes a transceiver, a processor, and a memory; program instructions are stored in the memory; when the program instructions are executed, the device executes any of claims 1 to 11 One described method.
A chip, characterized in that the chip is coupled with a memory in an electronic device, so that the chip invokes program instructions stored in the memory during operation to implement the method according to any one of claims 1 to 11.
A computer-readable storage medium, wherein the computer-readable storage medium includes program instructions, when the program instructions are executed on a device, the device executes any one of claims 1 to 11 Methods.