Wireless communication method and terminal device

Abstract

An embodiment of the present application provides a wireless communication method and a terminal device. The method includes: the terminal device receives a dedicated RRC message sent by a first network device, where the dedicated RRC message includes: first information for cell selection or reselection or network device access; the terminal device receives a first SIB message sent by a second network device, where the first SIB message includes: second information for cell selection or reselection or network device access; the terminal device performs cell selection or reselection or network device access according to the first information or the second information. Thereby, the flexibility of cell selection or reselection or network device access is improved.

Description

Technical Field

[0001] Embodiments of the present application relate to the field of communications, and more particularly, to wireless communication methods and terminal devices. Background Art

[0002] Currently, a network device can indicate information related to a slice (i.e., a network slice) through a System Information Block (SIB), such as frequency band priority information related to the slice. Also, a Radio Resource Control (RRC) release can indicate frequency band priority information, and the RRC release message may not indicate information related to the slice, that is, the frequency band priority information indicated by the RRC release message may be independent of the network slice. Currently, the frequency band priority information in the RRC release message is valid before the T320 timer expires and before the terminal device enters the RRC connected state. If the terminal device has the frequency band priority information in the RRC release message and the frequency band priority information is valid, the terminal device preferentially uses the frequency band priority information in this message for cell selection or reselection or access to the network device, rather than using the frequency band priority information in the SIB for cell selection or reselection or access to the network device. This way of cell selection or reselection or access to the network device lacks flexibility. Summary of the Invention

[0003] Embodiments of the present application provide a wireless communication method and a terminal device, thereby improving the flexibility of cell selection or reselection or access to the network device.

[0004] In a first aspect, a wireless communication method is provided, including: a terminal device receives a dedicated RRC message sent by a first network device, the dedicated RRC message includes: first information for cell selection or reselection or access to the network device; the terminal device receives a first SIB message sent by a second network device, the first SIB message includes: second information for cell selection or reselection or access to the network device; the terminal device selects or reselects a target cell or accesses the network device according to the first information or the second information.

[0005] In a second aspect, a terminal device is provided for performing the method in the first aspect or its various implementations.

[0006] Specifically, the terminal device includes functional modules for performing the method in the first aspect or its various implementations.

[0007] Through the above technical solution, the terminal device can select or reselect a target cell or access a network device according to the first information or the second information, rather than only selecting or reselecting a target cell or accessing a network device according to the first information when the first information is valid, thereby improving the flexibility of cell selection or reselection or network device access. Brief Description of the Drawings

[0008] Figure 1 It is a schematic diagram of a communication system architecture provided by an embodiment of the present application;

[0009] Figure 2 It is an interaction flowchart of a wireless communication method provided by an embodiment of the present application;

[0010] Figure 3 It shows a schematic block diagram of a terminal device 300 according to an embodiment of the present application;

[0011] Figure 4 It is a schematic structural diagram of a communication device 400 provided by an embodiment of the present application;

[0012] Figure 5 It is a schematic structural diagram of a device provided by an embodiment of the present application. Detailed Embodiments

[0013] Next, the technical solutions in the embodiments of the present application will be described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, rather than all, of the embodiments of the present application. For the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0014] Embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system, New Radio (NR) system, an evolved system of the NR system, LTE-based access to unlicensed spectrum (LTE-U) system, NR-based access to unlicensed spectrum (NR-U) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), next-generation communication system or other communication systems, etc.

[0015] Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technologies, mobile communication systems will not only support traditional communication, but also support, for example, Device to Device (D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), and Vehicle to Vehicle (V2V) communication, etc. Embodiments of the present application can also be applied to these communication systems.

[0016] Optionally, the communication system in the embodiments of the present application can be applied to a Carrier Aggregation (CA) scenario, can also be applied to a Dual Connectivity (DC) scenario, and can also be applied to a Standalone (SA) networking scenario.

[0017] The spectrum applied in the embodiments of this application is not limited. For example, the embodiments of this application can be applied to licensed spectrum or unlicensed spectrum.

[0018] Exemplarily, the communication system 100 applied in the embodiments of this application is as Figure 1 shown. The communication system 100 may include a first network device 110 and a second network device 120. Both the first network device 110 and the second network device 120 may be devices that communicate with a terminal device 130 (or referred to as a communication terminal, terminal). The first network device 110 and the second network device 120 can both provide communication coverage for a specific geographical area and can communicate with terminal devices located within the coverage area.

[0019] Figure 1 Exemplarily, two network devices and one terminal device are shown. Optionally, the communication system 100 may include more network devices and each network device's coverage area may include other numbers of terminal devices. The embodiments of this application do not limit this.

[0020] It should be understood that Figure 1 Exemplarily, it is shown that the terminal device 130 has currently moved into the cell covered by the second network device 120. Optionally, the terminal device 130 may be located in the cell covered by the first network device 110. In this case, the terminal device 130 is in an unconnected state with the second network device 120.

[0021] Optionally, the communication system 100 may further include other network entities such as a network controller and a mobility management entity. The embodiments of this application do not limit this.

[0022] It should be understood that in the embodiments of this application, a device with communication functions in a network / system may be referred to as a communication device. Taking Figure 1 the shown communication system 100 as an example, communication devices may include the first network device 110, the second network device 120, and the terminal device 130 with communication functions. The first network device 110, the second network device 120, and the terminal device 130 may be the specific devices described above and will not be elaborated here; communication devices may also include other devices in the communication system 100, such as other network entities like a network controller and a mobility management entity. The embodiments of this application do not limit this.

[0023] It should be understood that the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is merely a description of the association relationship between associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.

[0024] Embodiments of the present application describe various embodiments in combination with a terminal device and a network device, where: The terminal device may also be referred to as a user equipment (UE), access terminal, user unit, user station, mobile station, mobile device, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device, etc. The terminal device may be a station (STAION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication capabilities, a computing device, or other processing devices connected to a wireless modem, a vehicle-mounted device, a wearable device, and a next-generation communication system, for example, a terminal device in an NR network or a terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc.

[0025] By way of example and not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. A wearable device may also be referred to as a wearable intelligent device, which is a general term for devices developed by applying wearable technologies to the intelligent design of daily wear, such as glasses, gloves, watches, clothing, and shoes, etc. A wearable device is a portable device that is either directly worn on the body or integrated into the user's clothing or accessories. A wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable intelligent devices include those with complete functions and large sizes that can realize complete or partial functions without relying on a smart phone, such as smart watches or smart glasses, etc., and those that only focus on a certain type of application function and need to cooperate with other devices such as smart phones, such as various smart bracelets and smart jewelry for physical sign monitoring.

[0026] The network device may be a device for communicating with a mobile device. The network device may be an access point (AP) in a WLAN, a base transceiver station (BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and a network device or base station (gNB) in an NR network or a network device in a future evolved PLMN network, etc.

[0027] In the embodiments of the present application, the network device provides services for a cell, and the terminal device communicates with the network device through the transmission resources used by the cell (for example, frequency domain resources, or in other words, spectrum resources). The cell may be a cell corresponding to the network device (such as a base station). The cell may belong to a macro base station or a base station corresponding to a small cell. Here, the small cell may include: metro cell, micro cell, picocell, femto cell, etc. These small cells have the characteristics of small coverage range and low transmission power, and are suitable for providing high-rate data transmission services.

[0028] Before introducing the technical solution of the present application, slicing, that is, network slicing, will be introduced first.

[0029] A network slice is composed of a Radio Access Network (RAN) part and a Core Network (CN) part. Different network slices have different Network Slice Selection Assistance Information (NSSAI).

[0030] The network's support for network slices depends on carrying data communications belonging to different network slices and different transmission performance requirements (such as reliability, transmission delay, transmission rate, etc.) by different Protocol Data Unit (PDU) sessions.

[0031] For example, the network will carry Enhanced Mobile Broadband (eMBB) and Ultra-Reliable and Low Latency Communication (URLLC) services on different PDU sessions. Each different PDU session may have multiple Quality of Service flows (QoS Flows).

[0032] In the downlink direction, the non-access stratum (NAS) service data flow (SDF) template in the core network classifies different data packets from the application layer and maps them to different QoS Flows in different PDU sessions, and sends them to the RAN in different PDU sessions. The RAN maps them to different data radio bearers (DRBs) according to the ID information of the QoS Flow and sends them to the UE over the air interface. Similarly, for uplink data, similar operations can also be adopted.

[0033] The strong demand for wireless communication in the vertical market is obvious to all. In order to meet the requirements of the vertical industry for latency, mobility, reliability, location accuracy, etc., the RAN needs to enhance how to support vertical services in the access network. Among them, one way is to provide lower latency, more targeted, greater flexibility, and higher scalability services for multiple services with different requirements based on network slicing. More specifically, the network slicing in the RAN part can enable application providers to participate in the customization of the design, deployment, and operation of the RAN, and better support the services of application providers. Therefore, Release (R) 17 introduces enhancements to the access network for network slicing, specifically involving the following aspects:

[0034] Slice based cell reselection under network control;

[0035] Slice based random access channel (RACH) configuration or access barring.

[0036] As described above, currently, a network device can indicate network slice-related information through SIB, such as frequency point priority information related to network slices. The RRC release message can also indicate frequency point priority information, and the RRC release message may not indicate slice-related information, that is, the frequency point priority information indicated by the RRC release message can be independent of network slices. Currently, the frequency point priority information and the like in the RRC release message are valid before the timer T320 times out and before the terminal device enters the RRC connected state. If the terminal device has the frequency point priority information in the RRC release message and the frequency point priority information is valid, the terminal device preferentially uses the frequency point priority information in the message for cell selection or reselection or access to the network device, rather than using the frequency point priority information in the SIB for cell selection or reselection or access to the network device.

[0037] However, since the SIB message can contain slice-related information, such as different frequency points corresponding to different slices, and / or, frequency point priority information of slices, and the RRC release message may not carry slice-related information, but in the process of cell selection or reselection or access to the network device, slice-related information may need to be considered. Therefore, it is not always more appropriate to use the information in the RRC release message. Based on this, the existing methods for cell selection or reselection or access to the network device lack flexibility.

[0038] To solve the above technical problems, in this application, the terminal device can use the information in the RRC release message or the information in the SIB message for cell selection or reselection or access to the network device.

[0039] Figure 2 The following is an interaction flowchart of a wireless communication method provided by an embodiment of this application. As Figure 2 shown, the method includes the following steps:

[0040] S210: A first network device sends a dedicated RRC message to the terminal device, and the dedicated RRC message includes: first information for cell selection or reselection or access to the network device.

[0041] S220: A second network device sends a first SIB message to the terminal device, and the first SIB message includes: second information for cell selection or reselection or access to the network device.

[0042] S230: The terminal device performs target cell selection or reselection or access to the network device according to the first information or the second information.

[0043] It should be understood that when the terminal device camps on a cell covered by the second network device, when performing cell selection, the above-mentioned target cell can be the cell on which the terminal device camps or other cells. When the terminal device camps on a cell covered by the second network device, when performing cell reselection, the above-mentioned target cell can be other cells except the cell on which the terminal device camps.

[0044] It should be understood that the access of the above-mentioned network device is also described as the access of a cell, and this application will not elaborate on this.

[0045] Optionally, the dedicated RRC message is an RRC release message, but it is not limited thereto.

[0046] Optionally, when the terminal device moves from a cell covered by the first network device to a cell covered by the second network device, the terminal device can receive a first SIB message sent by the second network device.

[0047] Optionally, the first SIB message can be an SIB1 message or other SIB messages, and this application does not limit this.

[0048] Exemplarily, the first SIB message is other SIB messages, and whether there is slice information is indicated in the SIB1 message. If it indicates that there is slice information, the slice information is carried in the first SIB message.

[0049] It should be understood that in this application, slice information is also referred to as slice-related information or slice-related information, and this application does not limit this.

[0050] Optionally, the slice information includes at least one of the following, but is not limited thereto: the identifier of the slice, the frequency point information corresponding to the slice.

[0051] Optionally, the first information is related to the slice, and / or the second information is related to the slice. For example: the first information is not related to the slice, and the second information is related to the slice. Another example: the first information is related to the slice, but not related to the slice required by the above-mentioned terminal device, and the second information is related to the slice, but related to the slice required by the above-mentioned terminal device.

[0052] Optionally, the first information includes at least one of the following, but is not limited thereto: cell information, frequency point information, area information, Public Land Mobile Network (PLMN) information, Tracking Area (TA) information, allowed Closed Access Group (CAG) list, allowed Closed Subscriber Group (CSG) list, disallowed CAG list, disallowed CSG list.

[0053] Optionally, the second information includes at least one of the following, but is not limited thereto: cell information, frequency point information, area information, PLMN information, TA information, allowed CAG list, allowed CSG list, disallowed CAG list, disallowed CSG list.

[0054] It should be noted that if the slice information is carried in the first SIB message, the frequency point information in the second information can be understood as the frequency point information corresponding to the slice, that is, the frequency point information is also a kind of slice information.

[0055] Optionally, the cell information includes at least one of the following, but is not limited thereto: cell identifier, priority information of the cell, etc.

[0056] Optionally, the cell involved in the cell information can be a redirected or reselected cell, but is not limited thereto.

[0057] Optionally, the frequency point information includes frequency point priority information, but is not limited thereto.

[0058] Optionally, the frequency point involved in the frequency point information can be a redirected or reselected frequency point, but is not limited thereto.

[0059] Optionally, the area information includes: RAN area code, but is not limited thereto.

[0060] Optionally, the PLMN information includes: PLMN identifier, but is not limited thereto.

[0061] Optionally, the TA information includes: Tracking area code, but is not limited thereto.

[0062] Optionally, the terminal device can select or reselect a target cell or access a network device according to the first information or the second information in the following ways, but is not limited thereto: predefined method, preset rule method.

[0063] In summary, in this application, the terminal device can select or reselect a target cell or access a network device according to the first information or the second information, rather than only selecting or reselecting a target cell or accessing a network device according to the first information when the first information is valid, thereby improving the flexibility of cell selection or reselection or network device access.

[0064] As described above, the terminal device can select the first information or the second information through a preset rule to select or reselect a target cell or access a network device. The preset rule will be elaborated in detail below:

[0065] Optionally, the preset rule is related to at least one of the first network device, the second network device, the terminal device, the first information, and the second information.

[0066] In an implementable manner, if the preset rule includes at least one of the following, but is not limited thereto, the target cell is selected or reselected or the network device is accessed according to the first information:

[0067] The first network device is a network device supporting slicing.

[0068] The first network device is a network device broadcasting slice information.

[0069] The first network device is a network device after Release (R) 17.

[0070] The second network device is not a network device supporting slicing.

[0071] The second network device is not a network device broadcasting slice information.

[0072] The second network device is not a network device after R17.

[0073] The first information includes cell selection or reselection or network device access information for the first slice or the first slice group.

[0074] The information indicated in the first information is cell selection or reselection or network device access information for the first slice or the first slice group.

[0075] The first information includes cell selection or reselection or network device access information corresponding to the first parameter or the first parameter group.

[0076] The information indicated in the first information is cell selection or reselection or network device access information corresponding to the first parameter or the first parameter group.

[0077] The terminal device is a terminal supporting slicing.

[0078] The terminal device is a terminal after R17.

[0079] The terminal device has the required slice.

[0080] By default, the target cell is selected or reselected or the network device is accessed according to the first information.

[0081] It should be understood that the first slice is the slice used for target cell selection or reselection or network device access, or the first slice is the slice required by the terminal device.

[0082] It should be understood that the terminal device may only need one slice, which is the first slice mentioned above. Alternatively, the terminal device may need multiple slices. In this case, the first slice is any one of the multiple slices required by the terminal device, or, in this case, the first slice is a specific slice among the multiple slices required by the terminal device.

[0083] It should be understood that the first slice set is a slice set used for target cell selection or reselection or access to a network device, or, the first slice set is a slice set required by the terminal device.

[0084] Optionally, the first slice set includes at least one slice.

[0085] It should be understood that the first parameter is a parameter corresponding to the first slice. For example: the first parameter is the access category corresponding to the first slice.

[0086] It should be understood that the first parameter set is a parameter set corresponding to the first slice set.

[0087] Optionally, the first parameter set includes at least one first parameter corresponding to each of the at least one first slice, where the first parameter may be the access category corresponding to the first slice.

[0088] Optionally, the first parameter set includes at least one first parameter corresponding to the first slice set, where the first parameter may be the access category corresponding to the first slice set.

[0089] It should be understood that when the first information includes cell selection or reselection or network device access information corresponding to the first parameter or the first parameter set; and / or, the information indicated in the first information is for cell selection or reselection or network device access information corresponding to the first parameter or the first parameter set, in this case, since the first parameter is a parameter corresponding to the first slice and the first parameter set is a parameter set corresponding to the first slice set, it implicitly indicates that the first information is related to the slice.

[0090] Optionally, cell selection or reselection or network device access information is also referred to as information for cell selection or reselection or network device access.

[0091] Optionally, cell selection or reselection or network device access information includes at least one of the following, but is not limited to: cell information, frequency information, area information, PLMN information, TA information, allowed CAG list, allowed CSG list, disallowed CAG list, disallowed CSG list.

[0092] It should be understood that in this application, R17 is also referred to as NR R17.

[0093] In another implementable manner, if the preset rules include at least one of the following, but are not limited thereto, then the target cell is selected or reselected or the network device is accessed according to the first information:

[0094] The first network device is a network device supporting slicing.

[0095] The first network device is a network device broadcasting slice information.

[0096] The first network device is a network device after R17.

[0097] The second network device is not a network device supporting slicing.

[0098] The second network device is not a network device broadcasting slice information.

[0099] The second network device is not a network device after R17.

[0100] The first information does not include cell selection or reselection or network device access information for the first slice or the first slice group, and the terminal device is not a terminal supporting slicing.

[0101] The first information does not include cell selection or reselection or network device access information for the first slice or the first slice group, and the terminal device is not a terminal after R17.

[0102] The first information does not include cell selection or reselection or network device access information for the first slice or the first slice group, and the terminal device does not have the required slice.

[0103] The information indicated in the first information is not cell selection or reselection or network device access information for the first slice or the first slice group, and the terminal device is not a terminal supporting slicing.

[0104] The information indicated in the first information is not cell selection or reselection or network device access information for the first slice or the first slice group, and the terminal device is not a terminal after R17.

[0105] The information indicated in the first information is not cell selection or reselection or network device access information for the first slice or the first slice group, and the terminal device does not have the required slice.

[0106] The first information does not include cell selection or reselection or network device access information corresponding to the first parameter or the first parameter group, and the terminal device is not a terminal supporting slicing.

[0107] The first information does not include cell selection or reselection or network device access information corresponding to the first parameter or the first parameter group, and the terminal device is not a terminal after R17.

[0108] The first information does not include cell selection or reselection or network device access information corresponding to the first parameter or the first parameter group, and the terminal device does not have the required slice.

[0109] The information indicated in the first information is not for cell selection or reselection or network device access information corresponding to the first parameter or the first parameter group, and the terminal device is not a slice-supported terminal.

[0110] The information indicated in the first information is not for cell selection or reselection or network device access information corresponding to the first parameter or the first parameter group, and the terminal device is not a terminal after R17.

[0111] The information indicated in the first information is not for cell selection or reselection or network device access information corresponding to the first parameter or the first parameter group, and the terminal device does not have the required slice.

[0112] By default, the target cell selection or reselection or network device access is performed according to the first information.

[0113] Among them, the explanations of the first slice, the first slice group, the first parameter, and the first parameter group can be referred to the above text, and the present application will not elaborate on this.

[0114] In another implementable manner, if the preset rule includes at least one of the following, but not limited to this, then the target cell selection or reselection or network device access is performed according to the second information:

[0115] The first network device is not a slice-supported network device.

[0116] The first network device is not a network device that broadcasts slice information.

[0117] The first network device is not a network device after R17.

[0118] The second network device is a slice-supported network device.

[0119] The second network device is a network device that broadcasts slice information.

[0120] The second network device is a network device after R17.

[0121] The terminal device is a slice-supported terminal.

[0122] The terminal device is a terminal after R17.

[0123] The slice required by the terminal device is different from the slice related to the first information.

[0124] The slice required by the terminal device is the same as the slice related to the second information.

[0125] The second information includes cell selection or reselection or network device access information for the first slice or the first slice group.

[0126] The information indicated in the second information is cell selection or reselection or network device access information for the first slice or the first slice group.

[0127] The first information does not include cell selection or reselection or network device access information for the first slice or the first slice group.

[0128] The information indicated in the first information is not cell selection or reselection or network device access information for the first slice or the first slice group.

[0129] The second information includes cell selection or reselection or network device access information corresponding to the first parameter or the first parameter group.

[0130] The information indicated in the second information is cell selection or reselection or network device access information corresponding to the first parameter or the first parameter group.

[0131] The first information does not include cell selection or reselection or network device access information corresponding to the first parameter or the first parameter group.

[0132] The information indicated in the first information is not cell selection or reselection or network device access information corresponding to the first parameter or the first parameter group.

[0133] By default, the target cell is selected or reselected or the network device is accessed according to the second information.

[0134] Among them, the explanations of the first slice, the first slice group, the first parameter, and the first parameter group can be referred to the above text, and the present application will not elaborate on this.

[0135] Exemplarily, assume that the slice required by the terminal device is slice 1, and the slice related to the first information is slice 2. In this case, it can be said that the slice required by the terminal device is different from the slice related to the first information.

[0136] Exemplarily, assume that the slice required by the terminal device is slice 1, and the slice related to the second information is slice 1. In this case, it can be said that the slice required by the terminal device is the same as the slice related to the second information.

[0137] Optionally, the dedicated RRC message and / or the first SIB message further includes at least one of the following: the application scope of the first information, the first preset time period, the first indication information, the application scope of the second information, and the second indication information.

[0138] Alternatively, the first information and / or the second information further includes at least one of the following: the application scope of the first information, the first preset time period, the first indication information, the application scope of the second information, and the second indication information.

[0139] Wherein, the first preset time period is the time period for selecting or reselecting a target cell or accessing a network device according to the first information. The first indication information is used to indicate whether to select or reselect a target cell or access a network device according to the first information. The second indication information is used to indicate whether to select or reselect a target cell or access a network device according to the second information.

[0140] Example 1: The dedicated RRC message further includes at least one of the following: the application scope of the first information, the first preset time period, and the first indication information; the first SIB message further includes at least one of the following: the application scope of the second information and the second indication information.

[0141] Example 2: The first information further includes at least one of the following: the application scope of the first information, the first preset time period, and the first indication information; the second information further includes at least one of the following: the application scope of the second information and the second indication information.

[0142] Example 3: The dedicated RRC message further includes at least one of the following: the application scope of the first information and the first indication information; the first SIB message further includes at least one of the following: the first preset time period, the application scope of the second information, and the second indication information.

[0143] Example 4: The first information further includes at least one of the following: the application scope of the first information and the first indication information; the second information further includes at least one of the following: the first preset time period, the application scope of the second information, and the second indication information.

[0144] Optionally, the preset rule is related to at least one of the application scope of the first information, the first information, the first preset time period, the first indication information, the application scope of the second information, the second indication information, the first SIB message, the second SIB message sent by the first network device, the first network device, the second network device, and the slice required by the terminal device.

[0145] The following uses examples to illustrate the preset rule:

[0146] Example 1: The preset rule is related to at least one of the first indication information and the second indication information.

[0147] Optionally, if the preset rule includes at least one of the following, the target cell selection or reselection or network device access is performed according to the first information:

[0148] The first indication information indicates that the target cell selection or reselection or network device access is performed according to the first information.

[0149] The second indication information does not indicate, or indicates that the target cell selection or reselection or network device access is not performed according to the second information.

[0150] It should be understood that the second indication information not indicating that the target cell selection or reselection or network device access is performed according to the second information can be understood as the non-existence of the second indication information in the second information. And the second indication information indicating that the target cell selection or reselection or network device access is not performed according to the second information can be understood as the existence of the second indication information in the second information, and this second indication information indicates that the target cell selection or reselection or network device access is not performed according to the second information. For example, when the value of the second indication information is 0, it means that the target cell selection or reselection or network device access is not performed according to the second information.

[0151] Optionally, if the preset rule includes at least one of the following, the target cell selection or reselection or network device access is performed according to the first information: The first indication information indicates that the target cell selection or reselection or network device access is performed according to the first information, and the second indication information indicates that the target cell selection or reselection or network device access is performed according to the second information, and by default, the target cell selection or reselection or network device access is performed according to the first information.

[0152] Optionally, if the preset rule includes at least one of the following, the target cell selection or reselection or network device access is performed according to the second information:

[0153] The first indication information does not indicate, or indicates that the target cell selection or reselection or network device access is not performed according to the first information.

[0154] The second indication information indicates that the target cell selection or reselection or network device access is performed according to the second information.

[0155] It should be understood that when the first indication information does not indicate the selection or reselection of the target cell or the access to the network device according to the first information, it can be understood that the first indication information does not exist in the first information. When the first indication information indicates not to perform the selection or reselection of the target cell or the access to the network device according to the first information, it can be understood that there is the first indication information in the first information, and this first indication information indicates not to perform the selection or reselection of the target cell or the access to the network device according to the first information. For example, when the value of the first indication information is 0, it means not to perform the selection or reselection of the target cell or the access to the network device according to the first information.

[0156] Optionally, if the preset rule includes at least one of the following, the selection, reselection, or access to the network device of the target cell is performed according to the second information: the first indication information indicates the selection, reselection, or access to the network device of the target cell according to the first information, and the second indication information indicates the selection, reselection, or access to the network device of the target cell according to the second information, and by default, the selection, reselection, or access to the network device of the target cell is performed according to the second information.

[0157] Example 2, the preset rule is related to at least one of the application scopes of the first indication information, the second indication information, the first information, and the second information.

[0158] Optionally, if the preset rule includes at least one of the following, the selection, reselection, or access to the network device of the target cell is performed according to the first information or the second information:

[0159] When the first indication information indicates not to perform the selection, reselection, or access to the network device of the target cell according to the first information, and the second indication information indicates not to perform the selection, reselection, or access to the network device of the target cell according to the second information, the first information or the second information is selected according to the application scope of the first information and / or the application scope of the second information for the selection, reselection, or access to the network device of the target cell.

[0160] When the first indication information indicates the selection, reselection, or access to the network device of the target cell according to the first information, and / or, the second indication information indicates the selection, reselection, or access to the network device of the target cell according to the second information, the first information or the second information is selected according to the application scope of the first information and / or the application scope of the second information for the selection, reselection, or access to the network device of the target cell.

[0161] The first information or the second information is selected according to the application scope of the first information and / or the application scope of the second information for the selection, reselection, or access to the network device of the target cell.

[0162] Optionally, when the current serving cell of the terminal device is within the application scope of the first information, select the first information for target cell selection or reselection or network device access. Or, when the current serving cell of the terminal device is not within the application scope of the second information, select the first information for target cell selection or reselection or network device access. Or, when the current serving cell of the terminal device is within the application scope of the first information and not within the application scope of the second information, select the first information for target cell selection or reselection or network device access.

[0163] Optionally, when the current serving cell of the terminal device is within the application scope of the second information, select the second information for target cell selection or reselection or network device access. Or, when the current serving cell of the terminal device is not within the application scope of the first information, select the second information for target cell selection or reselection or network device access. Or, when the current serving cell of the terminal device is within the application scope of the second information and not within the application scope of the first information, select the second information for target cell selection or reselection or network device access.

[0164] Example 3, the preset rule is related to at least one of the application scope of the first information, the first information, the first SIB message, the second SIB message, and the slice required by the terminal device.

[0165] Optionally, if the preset rule includes at least one of the following, perform target cell selection or reselection or network device access according to the first information:

[0166] The current serving cell of the terminal device is within the application scope of the first information.

[0167] The first information includes slice-related information.

[0168] The slice carried in the second SIB message is the same as the slice required by the terminal device.

[0169] The slice carried in the first SIB message is different from the slice required by the terminal device.

[0170] The slice carried in the first information is the same as the slice required by the terminal device.

[0171] The slice carried in the second information is different from the slice required by the terminal device.

[0172] It should be understood that the slice carried in the second SIB message can be understood as the slice corresponding to the identifier of the slice carried in the second SIB message. The slice carried in the first SIB message can be understood as the slice corresponding to the identifier of the slice carried in the first SIB message.

[0173] It should be understood that when multiple slices are carried in the second SIB message and the terminal device needs multiple slices, the slices carried in the second SIB message being the same as the slices needed by the terminal device means that the multiple slices carried in the second SIB message are exactly the same as or partially the same as the multiple slices needed by the terminal device. This application does not limit this.

[0174] It should be understood that when multiple slices are carried in the first SIB message and the terminal device needs multiple slices, the slices carried in the first SIB message being the same as the slices needed by the terminal device means that the multiple slices carried in the first SIB message are exactly the same as or partially the same as the multiple slices needed by the terminal device. This application does not limit this.

[0175] It should be understood that the slices carried in the first information can be understood as the slices corresponding to the identifiers of the slices carried in the first information. The slices carried in the second information can be understood as the slices corresponding to the identifiers of the slices carried in the second information.

[0176] It should be understood that when multiple slices are carried in the first information and the terminal device needs multiple slices, the slices carried in the first information being the same as the slices needed by the terminal device means that the multiple slices carried in the first information are exactly the same as or partially the same as the multiple slices needed by the terminal device. This application does not limit this.

[0177] It should be understood that when multiple slices are carried in the second information and the terminal device needs multiple slices, the slices carried in the second information being the same as the slices needed by the terminal device means that the multiple slices carried in the second information are exactly the same as or partially the same as the multiple slices needed by the terminal device. This application does not limit this.

[0178] Optionally, if the preset rules include at least one of the following, then select or reselect the target cell or access the network device according to the second information:

[0179] The current serving cell of the terminal device is not within the application range of the first information.

[0180] The application range of the second SIB message does not include the current serving cell.

[0181] The relationship between the frequency points and slices carried in the second SIB message is different from the relationship between the frequency points and slices carried in the first SIB message.

[0182] The relationship between the frequency points and slices carried in the second SIB message is different from the relationship between the slices needed by the terminal device and the frequency points.

[0183] The slices carried in the second SIB message are different from the slices needed by the terminal device.

[0184] The slice carried in the first SIB message is the same as the slice required by the terminal device.

[0185] The slice carried in the first information is different from the slice required by the terminal device.

[0186] The slice carried in the second information is the same as the slice required by the terminal device.

[0187] It should be understood that the relationship between the frequency point and the slice is also referred to as the correspondence relationship between the frequency point and the slice.

[0188] It should be understood that if the second SIB message carries multiple relationships, and the first SIB message also carries multiple relationships, where the relationship is the correspondence relationship between the frequency point and the slice, then the relationship between the frequency point and the slice carried in the second SIB message is different from the relationship between the frequency point and the slice carried in the first SIB message. It can be understood that the relationship between the frequency point and the slice carried in the second SIB message is completely different or not completely the same as the relationship between the frequency point and the slice carried in the first SIB message. This application does not limit this.

[0189] It should be understood that if the second SIB message carries multiple relationships, and there are also multiple relationships between the slice required by the terminal device and the frequency point, where the relationship is the correspondence relationship between the frequency point and the slice, then the relationship between the frequency point and the slice carried in the second SIB message is different from the relationship between the slice required by the terminal device and the frequency point. It can be understood that the relationship between the frequency point and the slice carried in the second SIB message is completely different or not completely the same as the relationship between the slice required by the terminal device and the frequency point. This application does not limit this.

[0190] Optionally, when the relationship between the frequency point and the slice carried in the second SIB message is different from the relationship between the frequency point and the slice carried in the first SIB message, the terminal device sets the priority of the frequency point carried in the first SIB message to a high priority. And / or, sets the priority corresponding to the frequency point carried in the first information to a low priority.

[0191] It should be understood that in this application, high priority and low priority can be relative concepts. For example: The priority of the frequency point carried in the first SIB message is the first priority, and the priority corresponding to the frequency point carried in the first information is the second priority. If the first priority is higher than the second priority, then the first priority is called a high priority, or a high priority relative to the second priority. The second priority is called a low priority, or a low priority relative to the first priority. Another example: The priority of the frequency point carried in the first SIB message is the first priority, and the priority corresponding to the frequency point carried in the first information is the second priority. If the first priority is higher than the preset priority, then the first priority is called a high priority. If the second priority is lower than the preset priority, then the second priority is called a low priority.

[0192] Optionally, if the preset rule includes at least one of the following, the target cell is selected or reselected or the network device is accessed according to the first information or the second information:

[0193] The application scope of the second SIB message includes the current serving cell.

[0194] The relationship between the frequency band and the slice carried in the second SIB message is the same as the relationship between the frequency band and the slice carried in the first SIB message.

[0195] The relationship between the frequency band and the slice carried in the second SIB message is the same as the relationship between the slice required by the terminal device and the frequency band.

[0196] The relationship between the slice carried in the second SIB message and the slice required by the terminal device is the same as the relationship between the slice carried in the first SIB message and the slice required by the terminal device.

[0197] The relationship between the slice carried in the second information and the slice required by the terminal device is the same as the relationship between the slice carried in the first information and the slice required by the terminal device.

[0198] It should be noted that in this optional manner, the first information or the second information can be selected according to the indication of the network device or the terminal device according to a certain preset rule for the selection or reselection of the target cell or the access of the network device. For example, if the above conditions are met, the terminal device defaults to selecting the first information or the second information for the selection or reselection of the target cell or the access of the network device.

[0199] Example 4, the preset rule is related to at least one of the first network device, the second network device, and the terminal device.

[0200] Optionally, if the preset rule includes any of the following, the target cell is selected or reselected or the network device is accessed according to the first information:

[0201] The second network device is a legacy device, and the first network device is an enhanced or network device with slice information.

[0202] The second network device is a legacy device, and the first network device is an enhanced or network device with slice information, and the terminal device meets the first condition.

[0203] The first network device is a legacy device, and the first network device is an enhanced or network device with slice information, and the terminal device meets the second condition.

[0204] It should be understood that in this application, a traditional device refers to a network device that is not enhanced and / or does not have slice information.

[0205] Optionally, the first condition includes at least one of the following:

[0206] The terminal device supports slicing.

[0207] The terminal device has the required slice.

[0208] The terminal device is a terminal device after R17.

[0209] Optionally, the second condition includes at least one of the following:

[0210] The terminal device does not support slicing.

[0211] The terminal device does not have the required slice.

[0212] The terminal device is not a terminal device after R17.

[0213] Optionally, if the preset rule includes any of the following, then the target cell is selected or reselected or the network device is accessed according to the second information:

[0214] The first network device is a traditional device, and the second network device is an enhanced network device or a network device with slice information.

[0215] The second network device is a traditional device, and the first network device is an enhanced or a network device with slice information, and the terminal device meets the first condition or the second condition.

[0216] It should be understood that the explanations of the traditional device, the first condition, and the second condition can be referred to the above text, and this application will not elaborate on them.

[0217] Optionally, in this application, the terminal device sets the frequency point corresponding to the required slice to a high priority. And / or, the terminal device sets the frequency points corresponding to the other slices except the required slice to a low priority.

[0218] It should be understood that the high priority and the low priority here are also relative concepts, as specifically described above, and this application will not elaborate on them.

[0219] In summary, in this application, the terminal device can select the first information or the second information according to the preset rule to perform the selection or reselection of the target cell or the access of the network device, thereby improving the flexibility of the cell selection or reselection or the network device access.

[0220] Optionally, before the terminal device selects or reselects a target cell or accesses a network device according to the first information or the second information, the terminal device may determine whether a preset condition is met. When the preset condition is met, the terminal device selects or reselects a target cell or accesses a network device according to the first information or the second information. Otherwise, the terminal device does not select or reselect a target cell or access a network device according to the first information or the second information.

[0221] Optionally, the preset condition includes: the first information is different from the second information. For example: the first information includes frequency point priority information unrelated to slices. The second information includes frequency point priority information related to slices.

[0222] One implementation manner, the preset condition further includes at least one of the following, but is not limited thereto:

[0223] The terminal device supports slices.

[0224] The terminal device has the required slices.

[0225] The terminal device is a terminal device after R17.

[0226] The first network device is a network device that supports slices.

[0227] The first network device is a network device that broadcasts slice information.

[0228] The first network device is a network device after R17.

[0229] The second network device is a network device that supports slices.

[0230] The second network device is a network device that broadcasts slice information.

[0231] The second network device is a network device after R17.

[0232] The slices supported by the network device are the slices required by the terminal device.

[0233] Another implementation manner, the preset condition further includes at least one of the following, but is not limited thereto:

[0234] The terminal device does not support slices.

[0235] The terminal device does not have the required slices.

[0236] The terminal device is not a terminal device after R17.

[0237] The first network device is not a network device that supports slices.

[0238] The first network device is not a network device that broadcasts slice information.

[0239] The first network device is not a network device after R17.

[0240] The second network device is not a network device supporting slices.

[0241] The second network device is not a network device that broadcasts slice information.

[0242] The second network device is not a network device after R17.

[0243] The slice supported by the network device is not the slice required by the terminal device.

[0244] In summary, in this application, when preset conditions are met, the terminal device selects or reselects a target cell or accesses a network device according to the first information or the second information. When the preset conditions are not met, the terminal device does not select or reselect a target cell or access a network device according to the first information or the second information, thereby improving the flexibility of cell selection or reselection or network device access.

[0245] As described above in conjunction with Figure 2 , the method embodiments of this application have been described in detail. Below in conjunction with Figures 3 to 5 , the device embodiments of this application will be described in detail. It should be understood that the device embodiments correspond to the method embodiments, and similar descriptions can refer to the method embodiments.

[0246] Figure 3 Fig. shows a schematic block diagram of a terminal device 300 according to an embodiment of this application. As Figure 3 shown, the terminal device 300 includes:

[0247] A communication unit 310, configured to receive a dedicated RRC message sent by a first network device and receive a first SIB message sent by a second network device. The dedicated RRC message includes: first information for cell selection or reselection or network device access. The first SIB message includes: second information for cell selection or reselection or network device access.

[0248] A processing unit 320, configured to select or reselect a target cell or access a network device according to the first information or the second information.

[0249] Optionally, the first information is related to slices, and / or the second information is related to slices.

[0250] Optionally, the terminal device's selection or reselection of a target cell or access to a network device according to the first information or the second information is predefined or determined according to preset rules.

[0251] Optionally, the preset rule is related to at least one of the first network device, the second network device, the terminal device, the second information, and the first information.

[0252] Optionally, if the preset rule includes at least one of the following, the processing unit is specifically configured to select or reselect a target cell or access a network device according to the first information:

[0253] The first network device is a network device supporting slicing.

[0254] The first network device is a network device broadcasting slice information.

[0255] The first network device is a network device after R17.

[0256] The second network device is not a network device supporting slicing.

[0257] The second network device is not a network device broadcasting slice information.

[0258] The second network device is not a network device after R17.

[0259] The first information includes cell selection or reselection or network device access information for the first slice or the first slice group.

[0260] The information indicated in the first information is cell selection or reselection or network device access information for the first slice or the first slice group.

[0261] The first information includes cell selection or reselection or network device access information corresponding to the first parameter or the first parameter group.

[0262] The information indicated in the first information is cell selection or reselection or network device access information corresponding to the first parameter or the first parameter group.

[0263] The terminal device is a terminal supporting slicing.

[0264] The terminal device is a terminal after R17.

[0265] The terminal device has the required slice.

[0266] By default, the target cell is selected or reselected or the network device is accessed according to the first information.

[0267] Wherein, the first slice is a slice for selecting or reselecting a target cell or accessing a network device, or the first slice is a slice required by the terminal device. The first slice group is a slice group for selecting or reselecting a target cell or accessing a network device, or the first slice group is a slice group required by the terminal device. The first parameter is a parameter corresponding to the first slice.

[0268] The first parameter set is the parameter set corresponding to the first slice set.

[0269] Optionally, if the preset rule includes at least one of the following, the processing unit is specifically configured to select or reselect a target cell or access a network device according to the first information:

[0270] The first network device is a network device that supports slicing.

[0271] The first network device is a network device that broadcasts slice information.

[0272] The first network device is a network device after R17.

[0273] The second network device is not a network device that supports slicing.

[0274] The second network device is not a network device that broadcasts slice information.

[0275] The second network device is not a network device after R17.

[0276] The first information does not include cell selection or reselection or network device access information for the first slice or the first slice set, and the terminal device is not a terminal that supports slicing.

[0277] The first information does not include cell selection or reselection or network device access information for the first slice or the first slice set, and the terminal device is not a terminal after R17.

[0278] The first information does not include cell selection or reselection or network device access information for the first slice or the first slice set, and the terminal device does not have the required slice.

[0279] The information indicated in the first information is not cell selection or reselection or network device access information for the first slice or the first slice set, and the terminal device is not a terminal that supports slicing.

[0280] The information indicated in the first information is not cell selection or reselection or network device access information for the first slice or the first slice set, and the terminal device is not a terminal after R17.

[0281] The information indicated in the first information is not cell selection or reselection or network device access information for the first slice or the first slice set, and the terminal device does not have the required slice.

[0282] The first information does not include cell selection or reselection or network device access information corresponding to the first parameter or the first parameter set, and the terminal device is not a terminal that supports slicing.

[0283] The first information does not include cell selection or reselection or network device access information corresponding to the first parameter or the first parameter group, and the terminal device is not a terminal after R17.

[0284] The first information does not include cell selection or reselection or network device access information corresponding to the first parameter or the first parameter group, and the terminal device does not have the required slice.

[0285] The information indicated in the first information is not for cell selection or reselection or network device access information corresponding to the first parameter or the first parameter group, and the terminal device is not a slice-supported terminal.

[0286] The information indicated in the first information is not for cell selection or reselection or network device access information corresponding to the first parameter or the first parameter group, and the terminal device is not a terminal after R17.

[0287] The information indicated in the first information is not for cell selection or reselection or network device access information corresponding to the first parameter or the first parameter group, and the terminal device does not have the required slice.

[0288] By default, the target cell selection or reselection or network device access is performed according to the first information.

[0289] Wherein, the first slice is a slice for performing target cell selection or reselection or network device access, or the first slice is a slice required by the terminal device. The first slice group is a slice group for performing target cell selection or reselection or network device access, or the first slice group is a slice group required by the terminal device. The first parameter is the parameter corresponding to the first slice.

[0290] The first parameter group is the parameter group corresponding to the first slice group.

[0291] Optionally, if the preset rule includes at least one of the following, the processing unit is specifically configured to perform target cell selection or reselection or network device access according to the second information:

[0292] The first network device is not a slice-supported network device.

[0293] The first network device is not a network device that broadcasts slice information.

[0294] The first network device is not a network device after R17.

[0295] The second network device is a slice-supported network device.

[0296] The second network device is a network device that broadcasts slice information.

[0297] The second network device is a network device after R17.

[0298] The terminal device is a slice-enabled terminal.

[0299] The terminal device is a terminal after R17.

[0300] The slice required by the terminal device is different from the slice related to the first information.

[0301] The slice required by the terminal device is the same as the slice related to the second information.

[0302] The second information includes cell selection or reselection or network device access information of the first slice or the first slice group.

[0303] The information indicated in the second information is cell selection or reselection or network device access information for the first slice or the first slice group.

[0304] The first information does not include cell selection or reselection or network device access information of the first slice or the first slice group.

[0305] The information indicated in the first information is not cell selection or reselection or network device access information for the first slice or the first slice group.

[0306] The second information includes cell selection or reselection or network device access information corresponding to the first parameter or the first parameter group.

[0307] The information indicated in the second information is cell selection or reselection or network device access information corresponding to the first parameter or the first parameter group.

[0308] The first information does not include cell selection or reselection or network device access information corresponding to the first parameter or the first parameter group.

[0309] The information indicated in the first information is not cell selection or reselection or network device access information corresponding to the first parameter or the first parameter group.

[0310] By default, the selection or reselection of the target cell or the access of the network device is performed according to the second information.

[0311] Wherein, the first slice is a slice for performing the selection or reselection of the target cell or the access of the network device, or the first slice is a slice required by the terminal device. The first slice group is a slice group for performing the selection or reselection of the target cell or the access of the network device, or the first slice group is a slice group required by the terminal device. The first parameter is a parameter corresponding to the first slice.

[0312] The first parameter group is a parameter group corresponding to the first slice group.

[0313] Optionally, the dedicated RRC message and / or the first SIB message further includes at least one of the following: the application scope of the first information, the first preset time period, the first indication information, the application scope of the second information, and the second indication information.

[0314] Alternatively, the first information and / or the second information further includes at least one of the following: the application scope of the first information, the first preset time period, the first indication information, the application scope of the second information, and the second indication information.

[0315] Wherein, the first preset time period is the time period for selecting or reselecting a target cell or accessing a network device according to the first information. The first indication information is used to indicate whether to select or reselect a target cell or access a network device according to the first information. The second indication information is used to indicate whether to select or reselect a target cell or access a network device according to the second information.

[0316] Optionally, the dedicated RRC message further includes at least one of the following: the application scope of the first information, the first preset time period, and the first indication information.

[0317] The first SIB message further includes at least one of the following: the application scope of the second information and the second indication information.

[0318] Optionally, the preset rule is related to at least one of the application scope of the first information, the first information, the first preset time period, the first indication information, the application scope of the second information, the second indication information, the first SIB message, the second SIB message sent by the first network device, the first network device, the second network device, and the slices required by the terminal device.

[0319] Optionally, the preset rule is related to at least one of the first indication information and the second indication information.

[0320] Optionally, if the preset rule includes at least one of the following, the processing unit is specifically configured to select or reselect a target cell or access a network device according to the first information:

[0321] The first indication information indicates to select or reselect a target cell or access a network device according to the first information.

[0322] The second indication information does not indicate, or indicates not to select or reselect a target cell or access a network device according to the second information.

[0323] Optionally, if the preset rule includes at least one of the following, the processing unit is specifically configured to select or reselect a target cell or access a network device according to the first information:

[0324] The first indication information indicates the selection or reselection of a target cell or access to a network device according to the first information, and the second indication information indicates the selection or reselection of a target cell or access to a network device according to the second information. By default, the selection or reselection of a target cell or access to a network device is performed according to the first information.

[0325] Optionally, if the preset rule includes at least one of the following, the processing unit is specifically configured to perform the selection or reselection of a target cell or access to a network device according to the second information:

[0326] The first indication information does not indicate, or indicates not to perform the selection or reselection of a target cell or access to a network device according to the first information.

[0327] The second indication information indicates the selection or reselection of a target cell or access to a network device according to the second information.

[0328] Optionally, if the preset rule includes at least one of the following, the processing unit is specifically configured to perform the selection or reselection of a target cell or access to a network device according to the second information:

[0329] The first indication information indicates the selection or reselection of a target cell or access to a network device according to the first information, and the second indication information indicates the selection or reselection of a target cell or access to a network device according to the second information. By default, the selection or reselection of a target cell or access to a network device is performed according to the second information.

[0330] Optionally, the preset rule is related to at least one of the application scopes of the first indication information, the second indication information, the first information, and the second information.

[0331] Optionally, if the preset rule includes at least one of the following, the processing unit is specifically configured to perform the selection or reselection of a target cell or access to a network device according to the first information or the second information:

[0332] When the first indication information indicates not to perform the selection or reselection of a target cell or access to a network device according to the first information, and the second indication information indicates not to perform the selection or reselection of a target cell or access to a network device according to the second information, the first information or the second information is selected according to the application scope of the first information and / or the application scope of the second information for the selection or reselection of a target cell or access to a network device.

[0333] When the first indication information indicates to select or reselect a target cell or access a network device according to the first information, and / or the second indication information indicates to select or reselect a target cell or access a network device according to the second information, select the first information or the second information to select or reselect a target cell or access a network device according to the application scope of the first information and / or the application scope of the second information.

[0334] Select the first information or the second information to select or reselect a target cell or access a network device according to the application scope of the first information and / or the application scope of the second information.

[0335] Optionally, the preset rule is related to at least one of the application scope of the first information, the first information, the first SIB message, the second SIB message, and the slice required by the terminal device.

[0336] Optionally, if the preset rule includes at least one of the following, the processing unit is specifically configured to select or reselect a target cell or access a network device according to the first information:

[0337] The current serving cell of the terminal device is within the application scope of the first information.

[0338] The first information includes slice-related information.

[0339] The slice carried in the second SIB message is the same as the slice required by the terminal device.

[0340] The slice carried in the first SIB message is different from the slice required by the terminal device.

[0341] The slice carried in the first information is the same as the slice required by the terminal device.

[0342] The slice carried in the second information is different from the slice required by the terminal device.

[0343] Optionally, if the preset rule includes at least one of the following, the processing unit is specifically configured to select or reselect a target cell or access a network device according to the second information:

[0344] The current serving cell of the terminal device is not within the application scope of the first information.

[0345] The application scope of the second SIB message does not include the current serving cell.

[0346] The relationship between the frequency band and the slice carried in the second SIB message is different from the relationship between the frequency band and the slice carried in the first SIB message.

[0347] The relationship between the frequency band and the slice carried in the second SIB message is different from the relationship between the slice required by the terminal device and the frequency band.

[0348] The slice carried in the second SIB message is different from the slice required by the terminal device.

[0349] The slice carried in the first SIB message is the same as the slice required by the terminal device.

[0350] The slice carried in the first information is different from the slice required by the terminal device.

[0351] The slice carried in the second information is the same as the slice required by the terminal device.

[0352] Optionally, the processing unit 320 is further configured to: when the relationship between the frequency band and the slice carried in the second SIB message is different from the relationship between the frequency band and the slice carried in the first SIB message, the terminal device sets the priority of the frequency band carried in the first SIB message to a high priority. And / or, set the priority corresponding to the frequency band carried in the first information to a low priority.

[0353] Optionally, if the preset rule includes at least one of the following, the processing unit is specifically configured to select or reselect a target cell or access a network device according to the first information or the second information:

[0354] The application scope of the second SIB message includes the current serving cell.

[0355] The relationship between the frequency band and the slice carried in the second SIB message is the same as the relationship between the frequency band and the slice carried in the first SIB message.

[0356] The relationship between the frequency band and the slice carried in the second SIB message is the same as the relationship between the slice and the frequency band required by the terminal device.

[0357] The relationship between the slice carried in the second SIB message and the slice required by the terminal device is the same as the relationship between the slice carried in the first SIB message and the slice required by the terminal device.

[0358] The relationship between the slice carried in the second information and the slice required by the terminal device is the same as the relationship between the slice carried in the first information and the slice required by the terminal device.

[0359] Optionally, the preset rule is related to at least one of the first network device, the second network device, and the terminal device.

[0360] Optionally, if the preset rule includes any one of the following, the processing unit is specifically configured to select or reselect a target cell or access a network device according to the first information:

[0361] The second network device is a traditional device, and the first network device is an enhanced or network device with slice information.

[0362] The second network device is a traditional device, and the first network device is an enhanced or network device with slice information, and the terminal device meets the first condition.

[0363] The first network device is a traditional device, and the first network device is an enhanced or network device with slice information, and the terminal device meets the second condition.

[0364] Optionally, if the preset rule includes any of the following, the processing unit is specifically configured to select or reselect a target cell or access a network device according to the second information:

[0365] The first network device is a traditional device, and the second network device is an enhanced network device or a network device with slice information.

[0366] The second network device is a traditional device, and the first network device is an enhanced or network device with slice information, and the terminal device meets the first condition or the second condition.

[0367] Optionally, the first condition includes at least one of the following:

[0368] The terminal device supports slicing.

[0369] The terminal device has the required slice.

[0370] The terminal device is a terminal device after R17.

[0371] Optionally, the second condition includes at least one of the following:

[0372] The terminal device does not support slicing.

[0373] The terminal device does not have the required slice.

[0374] The terminal device is not a terminal device after R17.

[0375] Optionally, the processing unit 320 is further configured to determine whether a preset condition is met. Accordingly, the processing unit 320 is specifically configured to: when the preset condition is met, select or reselect a target cell or access a network device according to the first information or the second information.

[0376] Optionally, the preset condition includes: the first information and the second information are different.

[0377] Optionally, the preset condition further includes at least one of the following:

[0378] The terminal device supports slicing.

[0379] The terminal device has the required slice.

[0380] The terminal device is a terminal device after R17.

[0381] The first network device is a network device supporting slicing.

[0382] The first network device is a network device broadcasting slice information.

[0383] The first network device is a network device after R17.

[0384] The second network device is a network device supporting slicing.

[0385] The second network device is a network device broadcasting slice information.

[0386] The second network device is a network device after R17.

[0387] The slice supported by the network device is the slice required by the terminal device.

[0388] Optionally, the preset condition further includes at least one of the following:

[0389] The terminal device does not support slicing.

[0390] The terminal device does not have the required slice.

[0391] The terminal device is not a terminal device after R17.

[0392] The first network device is not a network device supporting slicing.

[0393] The first network device is not a network device broadcasting slice information.

[0394] The first network device is not a network device after R17.

[0395] The second network device is not a network device supporting slicing.

[0396] The second network device is not a network device broadcasting slice information.

[0397] The second network device is not a network device after R17.

[0398] The slice supported by the network device is not the slice required by the terminal device.

[0399] Optionally, the processing unit 320 is further configured to: set the frequency point corresponding to the required slice to a high priority. And / or, set the frequency points corresponding to other slices except the required slice to a low priority.

[0400] Optionally, the dedicated RRC message is an RRC release message.

[0401] Optionally, the first information includes at least one of the following: cell information, frequency point information, area information, PLMN information, TA information, allowed CAG list, allowed CSG list, disallowed CAG list, disallowed CSG list. And / or, the second information includes at least one of the following: cell information, frequency point information, area information, PLMN information, TA information, allowed CAG list, allowed CSG list, disallowed CAG list, disallowed CSG list.

[0402] Optionally, the frequency point information includes frequency point priority information.

[0403] Optionally, in some embodiments, the above communication unit may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-chip. The above processing unit may be one or more processors.

[0404] It should be understood that the terminal device 300 according to the embodiments of the present application may correspond to the terminal device in the method embodiments of the present application, and the above and other operations and / or functions of each unit in the terminal device 300 are respectively for implementing the corresponding processes of the terminal device in the above method embodiments. For the sake of brevity, they will not be described in detail here.

[0405] Figure 4 It is a schematic structural diagram of a communication device 400 provided by an embodiment of the present application. Figure 4 The shown communication device 400 includes a processor 410, and the processor 410 can call and run a computer program from a memory to implement the method in the embodiments of the present application.

[0406] Optionally, as Figure 4 shown, the communication device 400 may further include a memory 420. Among them, the processor 410 can call and run a computer program from the memory 420 to implement the method in the embodiments of the present application.

[0407] Among them, the memory 420 may be a separate device independent of the processor 410, or may be integrated in the processor 410.

[0408] Optionally, as Figure 4 shown, the communication device 400 may further include a transceiver 430, and the processor 410 can control the transceiver 430 to communicate with other devices. Specifically, it can send information or data to other devices, or receive information or data sent by other devices.

[0409] Among them, the transceiver 430 may include a transmitter and a receiver. The transceiver 430 may further include an antenna, and the number of antennas may be one or more.

[0410] Optionally, the communication device 400 may specifically be the terminal device in the embodiments of the present application, and the communication device 400 may implement the corresponding processes implemented by the terminal device in each method of the embodiments of the present application. For the sake of brevity, details are not described herein again.

[0411] Figure 5 is a schematic structural diagram of the device in the embodiments of the present application. Figure 5 The illustrated device 500 includes a processor 510. The processor 510 may call and run a computer program from a memory to implement the methods in the embodiments of the present application.

[0412] Optionally, as Figure 5 shown, the device 500 may further include a memory 520. Among them, the processor 510 may call and run a computer program from the memory 520 to implement the methods in the embodiments of the present application.

[0413] Among them, the memory 520 may be a separate device independent of the processor 510 or may be integrated in the processor 510.

[0414] Optionally, the device 500 may further include an input interface 530. Among them, the processor 510 may control the input interface 530 to communicate with other devices or chips. Specifically, information or data sent by other devices or chips may be obtained.

[0415] Optionally, the device 500 may further include an output interface 540. Among them, the processor 510 may control the output interface 540 to communicate with other devices or chips. Specifically, information or data may be output to other devices or chips.

[0416] Optionally, the device may be applied to the network device in the embodiments of the present application, and the device may implement the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity, details are not described herein again.

[0417] Optionally, the device may be applied to the terminal device in the embodiments of the present application, and the device may implement the corresponding processes implemented by the terminal device in each method of the embodiments of the present application. For the sake of brevity, details are not described herein again.

[0418] Optionally, the device mentioned in the embodiments of the present application may also be a chip. For example, it may be a system-on-chip, a system chip, a chip system, or a system-on-chip.

[0419] The embodiments of the present application further provide a communication system. The communication system includes a terminal device, a first network device, and a second network device.

[0420] Among them, the terminal device can be used to implement the corresponding functions implemented by the terminal device in the above method, and the first network device can be used to implement the corresponding functions implemented by the first network device or the base station in the above method, and the second network device can be used to implement the corresponding functions implemented by the second network device or the base station in the above method. For the sake of brevity, details are not described herein again.

[0421] It should be understood that the processor in the embodiments of the present application may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the above method embodiments may be completed by the integrated logic circuit in the hardware of the processor or the instructions in the form of software. The above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. It can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. 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 the hardware decoding processor, or executed and completed by a combination of the hardware and software modules in the decoding processor. The software module may be located in a mature storage medium in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory, and the processor reads the information in the memory and combines its hardware to complete the steps of the above method.

[0422] It can be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchlink dynamic random access memory (SLDRAM), and direct rambus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include but not be limited to these and any other suitable types of memory.

[0423] It should be understood that the above-mentioned memory is by way of example but not limitation. For example, the memory in the embodiments of the present application can also be a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate SDRAM (DDR SDRAM), an enhanced SDRAM (ESDRAM), a synch link DRAM (SLDRAM), and a direct rambus random access memory (DR RAM), and so on. That is to say, the memory in the embodiments of the present application is intended to include but not be limited to these and any other suitable types of memory.

[0424] The embodiments of the present application also provide a computer-readable storage medium for storing a computer program.

[0425] Optionally, the computer-readable storage medium can be applied to the network device or the base station in the embodiments of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the network device or the base station in the various methods of the embodiments of the present application. For the sake of brevity, details are not described herein again.

[0426] Optionally, the computer-readable storage medium can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, details are not described herein again.

[0427] The embodiments of the present application also provide a computer program product, including computer program instructions.

[0428] Optionally, the computer program product can be applied to the network device or the base station in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device or the base station in the various methods of the embodiments of the present application. For the sake of brevity, details are not described herein again.

[0429] Optionally, the computer program product can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, details are not described herein again.

[0430] The embodiments of the present application also provide a computer program.

[0431] Optionally, the computer program can be applied to the network device or the base station in the embodiments of the present application. When the computer program runs on the computer, it causes the computer to execute the corresponding processes implemented by the network device or the base station in the various methods of the embodiments of the present application. For the sake of brevity, details are not described herein again.

[0432] Optionally, the computer program can be applied to the mobile terminal / terminal device in the embodiments of the present application. When the computer program runs on the computer, it causes the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, details are not described herein again.

[0433] Those of ordinary skill in the art can realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0434] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0435] In several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division, and there can be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces, and the indirect couplings or communication connections of the devices or units can be in electrical, mechanical, or other forms.

[0436] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place, or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0437] In addition, the functional units in each embodiment of this application can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit.

[0438] When the above-mentioned function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. With such an understanding, the technical solution of this application, in essence, or the part that contributes to the prior art or a part of this technical solution can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs.

[0439] As described above, the above are only specific implementation manners of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed by this application can easily think of changes or substitutions, which should all be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

1. A wireless communication method, characterized in that, Including: The terminal device receives a dedicated radio resource control (RRC) message sent by a first network device, and the dedicated RRC message includes: first information for cell selection, reselection, or network device access; The terminal device receives a first system information block (SIB) message sent by a second network device, and the first SIB message includes: second information for cell selection, reselection, or network device access; The terminal device selects, reselects, or accesses a target cell according to the first information, where the first information is related to a slice, and the second information is not related to a slice; Wherein, the terminal device selects, reselects, or accesses a target cell according to the first information is determined according to a preset rule.

2. The method according to claim 1, characterized in that, If the preset rule includes at least one of the following, then select, reselect, or access a target cell according to the first information: The first network device is a network device supporting slices; The first network device is a network device broadcasting slice information; The first network device is a network device after Release 17; The second network device is not a network device supporting slices; The second network device is not a network device broadcasting slice information; The second network device is not a network device after R17; The first information includes cell selection, reselection, or network device access information for a first slice or a first slice group; The information indicated in the first information is cell selection, reselection, or network device access information for a first slice or a first slice group; The first information includes cell selection, reselection, or network device access information corresponding to a first parameter or a first parameter group; The information indicated in the first information is cell selection, reselection, or network device access information corresponding to a first parameter or a first parameter group; The terminal device is a terminal supporting slices; The terminal device is a terminal after R17; The terminal device has a required slice; By default, select, reselect, or access a target cell according to the first information; Wherein, the first slice is a slice for selecting, reselecting, or accessing a target cell, or the first slice is a slice required by the terminal device; the first slice group is a slice group for selecting, reselecting, or accessing a target cell, or the first slice group is a slice group required by the terminal device; The first parameter is a parameter corresponding to the first slice; the first parameter group is a parameter group corresponding to the first slice group.

3. The method according to claim 1, wherein The dedicated RRC message and / or the first SIB message further includes at least one of the following: the application scope of the first information, a first preset time period, a first indication information, the application scope of the second information, a second indication information; Alternatively, the first information and / or the second information further includes at least one of the following: the application scope of the first information, a first preset time period, first indication information, the application scope of the second information, and second indication information; Wherein, the first preset time period is the time period for selecting or reselecting a target cell or accessing a network device according to the first information; the first indication information is used to indicate whether to select or reselect a target cell or access a network device according to the first information; the second indication information is used to indicate whether to select or reselect a target cell or access a network device according to the second information.

4. The method according to any one of claims 1 to 3, characterized in that Before the terminal device selects, reselects, or accesses a network device according to the first information, it further includes: The terminal device determines whether a preset condition is met; Correspondingly, the terminal device selects, reselects, or accesses a network device according to the first information, including: When the preset condition is met, the terminal device selects, reselects, or accesses a network device according to the first information.

5. The method according to claim 4, characterized in that, The preset condition further includes at least one of the following: The terminal device supports slicing; The terminal device has a required slice; The terminal device is a terminal device after R17; The first network device is a network device that supports slicing; The first network device is a network device that broadcasts slice information; The first network device is a network device after R17; The second network device is a network device that supports slicing; The second network device is a network device that broadcasts slice information; The second network device is a network device after R17; The slice supported by the network device is the slice required by the terminal device.

6. The method according to any one of claims 1-5, characterized in that The first information includes at least one of the following: cell information, frequency point information, area information, public land mobile network (PLMN) information, tracking area (TA) information, allowed closed access group (CAG) list, allowed closed subscriber group (CSG) list, disallowed CAG list, disallowed CSG list; And / or, The second information includes at least one of the following: cell information, frequency point information, area information, PLMN information, TA information, allowed CAG list, allowed CSG list, disallowed CAG list, disallowed CSG list; wherein, the frequency point information includes frequency point priority information.

7. A terminal device, characterized in that, Including: A communication unit, configured to receive a dedicated RRC message sent by a first network device and receive a first SIB message sent by a second network device, where the dedicated RRC message includes: first information for cell selection, reselection, or network device access; the first SIB message includes: second information for cell selection, reselection, or network device access; A processing unit, configured to select, reselect, or access a network device according to the first information, where the first information is related to slicing and the second information is not related to slicing, Among them, the processing unit determines the selection or reselection of a target cell or the access to a network device according to the first information in accordance with a preset rule.

8. The terminal device according to claim 7, wherein If the preset rule includes at least one of the following, the processing unit is specifically configured to perform the selection or reselection of a target cell or the access to a network device according to the first information: The first network device is a network device supporting slicing; The first network device is a network device broadcasting slice information; The first network device is a network device after R17; The second network device is not a network device supporting slicing; The second network device is not a network device broadcasting slice information; The second network device is not a network device after R17; The first information includes cell selection or reselection or network device access information of a first slice or a first slice group; The information indicated in the first information is cell selection or reselection or network device access information for a first slice or a first slice group; The first information includes cell selection or reselection or network device access information corresponding to a first parameter or a first parameter group; The information indicated in the first information is cell selection or reselection or network device access information corresponding to a first parameter or a first parameter group; The terminal device is a terminal supporting slicing; The terminal device is a terminal after R17; The terminal device has a required slice; By default, the selection or reselection of a target cell or the access to a network device is performed according to the first information; Among them, the first slice is a slice for performing the selection or reselection of a target cell or the access to a network device, or the first slice is a slice required by the terminal device; the first slice group is a slice group for performing the selection or reselection of a target cell or the access to a network device, or the first slice group is a slice group required by the terminal device; The first parameter is a parameter corresponding to the first slice; the first parameter group is a parameter group corresponding to the first slice group.

9. The terminal device according to claim 7, wherein The dedicated RRC message and / or the first SIB message further includes at least one of the following: the application scope of the first information, a first preset time period, a first indication information, the application scope of the second information, a second indication information; Alternatively, the first information and / or the second information further includes at least one of the following: the application scope of the first information, a first preset time period, a first indication information, the application scope of the second information, a second indication information; Among them, the first preset time period is a time period for performing the selection or reselection of a target cell or the access to a network device according to the first information; the first indication information is used to indicate whether to perform the selection or reselection of a target cell or the access to a network device according to the first information; the second indication information is used to indicate whether to perform the selection or reselection of a target cell or the access to a network device according to the second information.

10. The terminal device according to any one of claims 7-9, wherein The processing unit is further configured to determine whether a preset condition is satisfied; Correspondingly, the processing unit is specifically configured to: when the preset condition is satisfied, perform selection or reselection of a target cell or access to a network device according to the first information.

11. The terminal device according to claim 10, wherein The preset condition further includes at least one of the following: The terminal device supports slicing; The terminal device has a required slice; The terminal device is a terminal device after R17; The first network device is a network device that supports slicing; The first network device is a network device that broadcasts slice information; The first network device is a network device after R17; The second network device is a network device that supports slicing; The second network device is a network device that broadcasts slice information; The second network device is a network device after R17; The slice supported by the network device is the slice required by the terminal device.

12. The terminal device according to any one of claims 7-11, characterized in that, The first information includes at least one of the following: cell information, frequency point information, area information, PLMN information, TA information, allowed CAG list, allowed CSG list, disallowed CAG list, disallowed CSG list; and / or The second information includes at least one of the following: cell information, frequency point information, area information, PLMN information, TA information, allowed CAG list, allowed CSG list, disallowed CAG list, disallowed CSG list; wherein, the frequency point information includes frequency point priority information.

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