WO2022141211A1

WO2022141211A1 - Cell search method, terminal device and network device

Info

Publication number: WO2022141211A1
Application number: PCT/CN2020/141456
Authority: WO
Inventors: 范江胜
Original assignee: Oppo广东移动通信有限公司
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2022-07-07
Also published as: CN116114306A

Abstract

Provided are a cell search method, a terminal device and a network device. The method comprises: performing a cell search according to cell search indication information of a target frequency point, wherein the target frequency point comprises a serving frequency point of a terminal device, and/or at least one neighboring frequency point associated with the serving frequency point. Therefore, the service continuity and power saving requirements of a terminal device are met.

Description

Cell search method, terminal device and network device

technical field

The embodiments of the present application relate to the field of communications, and more particularly, to a cell search method, a terminal device, and a network device.

Background technique

The New Radio (NR) 16 version (R16) introduces a non-public network (NPN). In order to increase the flexibility of NPN deployment, the NPN network can be divided into independent non-public networks (Stand-alone Non -public Networks, SNPN) and Closed Access Group (Closed Access Group, CAG) networks, determine a SNPN, which determines a CAG network by PLMN ID and CAG ID (CAG ID).

Usually, it is necessary to rely on the operator to provide NPN, but for the network deployment requirements of temporary NPN, such as the deployment of temporary NPN for temporary concert communication or temporary emergency communication, it is not an efficient network construction mode to rely on the operator to provide temporary NPN every time. , based on this, it seems more efficient for operators to allow third parties to build their own networks through protocol authorization.

However, once the operator authorizes a third party to establish its own NPN network, the network officially deployed by the operator and the network deployed by a third-party entity will coexist. This coexistence is not only logical, but also resource deployment. It is likely to be a shared mode, such as frequency resource sharing.

At present, for the NPN network established by this third party, there is no method to assist the terminal equipment to quickly search for the desired type of cells. For example, several cells deployed in a temporary concert coexist with the cells officially deployed by the off-site operator. Under the mechanism, the terminal equipment cannot be preferentially selected or searched for the concert organizer's cell, which is not conducive to the business continuity and power saving requirements of the terminal equipment.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a cell search method, a terminal device, and a network device, so as to meet the service continuity and power saving requirements of the terminal device.

A first aspect provides a cell search method, comprising: performing a cell search according to cell search indication information of a target frequency point; wherein the target frequency point includes: a service frequency point of a terminal device, and/or a service frequency point associated with the service frequency point at least one adjacent frequency.

In a second aspect, a cell search method is provided, including: sending cell search indication information of a target frequency point to a terminal device; wherein, the cell search indication information is used for the terminal device to perform a cell search, and the target frequency point includes: the service of the terminal device. The frequency of the cell, and/or the frequency of at least one neighboring cell associated with the serving frequency.

In a third aspect, a terminal device is provided for executing the method in the above-mentioned first aspect or each implementation manner thereof.

Specifically, the terminal device includes a functional module for executing the method in the above-mentioned first aspect or each implementation manner thereof.

In a fourth aspect, a network device is provided for executing the method in the second aspect or each of its implementations.

Specifically, the terminal device includes a functional module for executing the method in the second aspect or each implementation manner thereof.

In a fifth aspect, a terminal device is provided, including a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the method in the above-mentioned first aspect or each implementation manner thereof.

In a sixth aspect, a network device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the second aspect or each of its implementations.

In a seventh aspect, an apparatus is provided for implementing the method in the first aspect, the second aspect or each of the implementation manners thereof.

Specifically, the apparatus includes: a processor for invoking and running a computer program from a memory, so that a device on which the apparatus is installed executes the method in the first aspect, the second aspect or each of their implementations.

In an eighth aspect, a computer program product is provided, comprising computer program instructions, the computer program instructions cause a computer to execute the method in the first aspect, the second aspect or each of the implementations thereof.

In a ninth aspect, a computer program is provided, which, when run on a computer, causes the computer to execute the method of the first aspect, the second aspect or each of the implementations thereof.

To sum up, in the present application, the terminal device can obtain the cell search indication information, and can quickly search for a suitable cell according to the information, for example, firstly search the frequency point of the highest priority search, or search the frequency point of the lowest priority search last. , or ignore frequency points that do not need to be searched, so as to meet the service continuity and power saving requirements of terminal equipment.

Description of drawings

1 is a schematic diagram of an application scenario of an embodiment of the present application;

2 is a schematic diagram of a networking combination relationship between a common public network, an SNPN, and a CAG network provided by an embodiment of the present application;

FIG. 3 shows an interactive flowchart of a cell search method according to an embodiment of the present application;

FIG. 4 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application;

FIG. 5 shows a schematic block diagram of a network device 500 according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a communication device 600 provided by an embodiment of the present application;

7 is a schematic structural diagram of a device according to an embodiment of the present application;

FIG. 8 is a schematic block diagram of a communication system 800 provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. With regard to the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.

As shown in FIG. 1 , the communication system 100 may include a terminal device 110 and a network device 120 . The network device 120 may communicate with the terminal device 110 through the air interface. Multi-service transmission is supported between the terminal device 110 and the network device 120 .

It should be understood that the embodiment of the present application only uses the communication system 100 for exemplary description, but the embodiment of the present application is not limited thereto. That is to say, the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: long term evolution (Long Term Evolution, LTE) system, LTE time division duplex (Time Division Duplex, TDD), universal mobile communication system (Universal mobile communication system) Mobile Telecommunication System, UMTS), 5G communication system (also known as New Radio (New Radio, NR) communication system), or future communication systems, etc.

Taking the 5G communication system as an example, the main application scenarios of 5G are: Enhanced Mobile Broadband (eMBB), Ultra-Reliable and Low Latency Communication (URLLC), large-scale machine-type communication ( massive Machine Type of Communication, mMTC). eMBB is still aimed at users' access to multimedia content, services and data, and its demand is growing rapidly. Since eMBB may be deployed in different scenarios, such as indoors, urban areas, rural areas, etc., its capabilities and requirements are also quite different, so it cannot be generalized and must be analyzed in detail in conjunction with specific deployment scenarios. Typical applications of URLLC include: industrial automation, power automation, telemedicine operations (surgery), traffic safety assurance, etc. Typical features of mMTC include: high connection density, small data volume, latency-insensitive services, low cost and long service life of the module.

In the 5G network environment, in order to reduce air interface signaling, quickly restore wireless connections, and quickly restore data services, a new Radio Resource Control (RRC) state is defined, that is, the RRC_INACTIVE (deactivated) state. This state is different from the RRC_IDLE (idle) and RRC_CONNECTED (connected) states. RRC_IDLE: Mobility is based on the cell selection reselection of the medium terminal equipment, the paging is initiated by the core network (Core Network, CN), and the paging area is configured by the CN. There is no terminal device access layer (Access Stratum, AS) context on the network device side, nor does an RRC connection exist. RRC_CONNECTED: There is an RRC connection, and the UE AS context exists between the network device and the terminal device; the network device knows that the location of the terminal device is at the specific cell level. Mobility is the mobility of network device control. Unicast data can be transmitted between terminal equipment and network equipment. RRC_INACTIVE: Mobility is based on terminal equipment cell selection reselection, there is a connection between CN-NR, terminal equipment AS context exists on a certain network equipment, paging is triggered by Radio Access Network (RAN), The RAN-based paging area is managed by the RAN, and the network equipment knows the location of the terminal device is based on the RAN's paging area level.

In the communication system 100 shown in FIG. 1 , the network device 120 may be an access network device that communicates with the terminal device 110 . An access network device may provide communication coverage for a particular geographic area, and may communicate with terminal devices 110 (eg, UEs) located within the coverage area.

The network device 120 may be an evolved base station (Evolutional Node B, eNB or eNodeB) in a Long Term Evolution (Long Term Evolution, LTE) system, or a next generation radio access network (Next Generation Radio Access Network, NG RAN) device, Or a base station (gNB) in an NR system, or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device 120 can be a relay station, an access point, a vehicle-mounted device, a wearable Devices, hubs, switches, bridges, routers, or network devices in the future evolved Public Land Mobile Network (PLMN).

The terminal device 110 may be any terminal device, which includes, but is not limited to, a terminal device that adopts a wired or wireless connection with the network device 120 or other terminal devices.

For example, the terminal equipment 110 may refer to an access terminal, a user equipment (UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, user agent, or user device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, end devices in 5G networks or end devices in future evolved networks, etc.

The terminal device 110 may be used for device-to-device (Device to Device, D2D) communication.

The wireless communication system 100 may further include a core network device 130 that communicates with the base station, and the core network device 130 may be a 5G core network (5G Core, 5GC) device, for example, an Access and Mobility Management Function (Access and Mobility Management Function). , AMF), another example, authentication server function (Authentication Server Function, AUSF), another example, user plane function (User Plane Function, UPF), another example, session management function (Session Management Function, SMF). Optionally, the core network device 130 may also be an evolved packet core (Evolved Packet Core, EPC) device of an LTE network, for example, a session management function+core network data gateway (Session Management Function+Core Packet Gateway, SMF+PGW- C) Equipment. It should be understood that the SMF+PGW-C can simultaneously implement the functions that the SMF and the PGW-C can implement. In the process of network evolution, the above-mentioned core network equipment may also be called by other names, or a new network entity may be formed by dividing the functions of the core network, which is not limited in this embodiment of the present application.

The various functional units in the communication system 100 may also establish a connection through a next generation network (next generation, NG) interface to implement communication.

For example, the terminal equipment establishes an air interface connection with the access network equipment through the NR interface to transmit user plane data and control plane signaling; the terminal equipment can establish a control plane signaling connection with the AMF through the NG interface 1 (N1 for short); access Network equipment, such as the next generation wireless access base station (gNB), can establish a user plane data connection with the UPF through the NG interface 3 (N3 for short); the access network equipment can establish a control plane signaling with the AMF through the NG interface 2 (N2 for short). connection; UPF can establish a control plane signaling connection with SMF through NG interface 4 (N4 for short); UPF can exchange user plane data with the data network through NG interface 6 (N6 for short); AMF can communicate with SMF through NG interface 11 (N11 for short) The SMF establishes a control plane signaling connection; the SMF can establish a control plane signaling connection with the PCF through the NG interface 7 (N7 for short).

FIG. 1 exemplarily shows one base station, one core network device and two terminal devices. Optionally, the wireless communication system 100 may include multiple base station devices and the coverage area of each base station may include other numbers of terminals equipment, which is not limited in this embodiment of the present application.

It should be understood that, in the embodiments of the present application, a device having a communication function in the network/system can be referred to as a communication device. Taking the communication system 100 shown in FIG. 1 as an example, the communication device may include a network device 120 and a terminal device 110 with a communication function, and the network device 120 and the terminal device 110 may be the devices described above, which will not be repeated here; The communication device may further include other devices in the communication system 100, such as other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.

It should be understood that the terms "system" and "network" are often used interchangeably herein.

NR R16 introduces NPN. In order to increase the flexibility of NPN deployment, NPN can be divided into SNPN and CAG networks. A SNPN is determined by PLMN ID and NID, and a CAG network is determined by PLMN ID and CAG ID. Taking SNPN as an example, the PLMN ID and NID can be used as an SNPN identifier. Users who have signed up for a SNPN service will configure the corresponding Subscriber Permanent Identifier (SUPI) and subscription information, which are stored in the terminal device and core. network side. A user who has subscribed to the SNPN service needs to support the SNPN access mode (SNPN access mode). The user configured in the SNPN access mode can only access the network through the SNPN, and the user who is not configured in the SNPN access mode can perform the PLMN selection process. The configuration mode (activation, deactivation, etc.) of the SNPN access mode is implemented by the terminal device. In the process of initial access and cell reselection, the access network equipment needs to broadcast the NID and corresponding PLMN ID information supported by itself. Users who have configured the SNPN access mode can select an accessible SNPN cell according to their own subscription information. The core network device may also authenticate the user's identity according to the user's subscription information.

A PLMN can support any network sharing combination mode in common public network, SNPN and CAG network at the same time. For example, a PLMN can support the common public network, SNPN or CAG network alone, can also support the network sharing combined mode of common public network and SNPN, and even support the network sharing combined mode of common public network, SNPN and CAG network. In other words, the common public network, SNPN or CAG network can be supported by a PLMN, or the common public network and the SNPN can share a PLMN network at the same time, or even the common public network, SNPN and CAG network can share a PLMN network at the same time. The following table 1 can more clearly reflect the logical deployment relationship between the common public network, the SNPN and the CAG network.

Table 1 Schematic representation of network identity configurations that a cell may support

As shown in Table 1, from the perspective of network configuration, a cell can be configured with public network PLMN ID list information and non-public network NPN network identification list information at the same time, and non-public network NPN network identification list information is an optional parameter introduced by NR R16 , for a CAG-type NPN network, a PLMN ID is allowed to be associated with a CAG ID list; for an SNPN-type NPN network, a PLMN ID is allowed to be associated with a NID list.

The parameters N, M, and W in Table 1 are all positive integers greater than or equal to 1.

FIG. 2 is a schematic diagram of a networking combination relationship among a common public network, an SNPN, and a CAG network provided by an embodiment of the present application.

As shown in Figure 2, a physical cell can be shared by multiple PLMN networks at the same time, and each PLMN logical cell can form its own unique non-public network. Optionally, different physical cells may be distinguished by using Physical Cell Identities (Physical Cell Identities, PCI). There are a total of 1008 physical cell identities in the NR system. PCI is a wireless signal used to distinguish different cells to ensure that there is no identical physical cell identity within the coverage of the relevant cells. Any network sharing combination of common public network, SNPN and CAG network can be freely deployed under a PLMN. Optionally, the number of independent SNPN sub-networks, the number of independent CAG sub-networks, or the total number of SNPN and CAG sub-networks deployed in one physical cell cannot exceed 12.

The cell where the terminal equipment can normally camp on. When configuring a frequency point, a network device can configure the frequency point priority information at the same time. The frequency point priority ranges from 0 to 7. 0 represents the lowest priority, and 7 represents the highest priority. For the diversity of frequency priority configuration, The standard stipulates that each value from 0 to 7 can be associated with a decimal value. The value range of the decimal place is {0.2, 0.4, 0.6, 0.8}. There are a total of 40 frequency priority combinations with the combination of integer and decimal places. The frequency point priority can be configured through system information or dedicated signaling. The frequency point priority configured by the dedicated signaling will be associated with a valid duration. During the valid duration, the dedicated frequency point priority always covers the public frequency point priority of system information broadcasting. level; when the valid time expires, the terminal can only use the public frequency priority.

In NPN, terminal equipment can perform cell selection based on cell selection reselection rules. For cell selection, if the cell selected by the terminal device satisfies the appropriate cell criterion, the terminal device can choose to camp in the cell to complete the cell selection. For cell reselection, if the reselected target cell satisfies the appropriate cell criterion and the reselection criterion condition defined based on the absolute frequency point priority, the terminal device reselects to the corresponding cell that satisfies the foregoing condition to complete the cell reselection. The above-mentioned reselection criteria defined based on absolute frequency priority include the following three:

High-priority frequency re-selection criteria;

The equal-priority frequency reselection criterion or the same-frequency reselection criterion, also known as the R criterion; and

Low-priority frequency re-selection criteria.

The newly deployed cell will have an impact on the neighbor relationship of neighboring cells. Neighboring cells cannot always obtain the latest neighbor relationship information from Operation and Maintenance (OAM). NR allows the terminal to The device reports information about neighboring cells acquired by itself, such as Cell Global Identity (CGI) and/or SFN and Frame Timing Difference (SFTD).

As mentioned above, it is usually necessary to rely on operators to provide NPNs, but for the network deployment requirements of temporary NPNs, such as deploying temporary NPNs for temporary concert communications or temporary emergency communications, it is not efficient to rely on operators to provide temporary NPNs every time. Based on this network construction model, it seems more efficient for operators to allow third parties to build their own networks through protocol authorization.

In order to solve the above technical problems, the present application provides a cell search method, terminal equipment and network equipment, wherein the terminal equipment performs cell search through cell search indication information, so as to achieve the purpose of fast search, thereby realizing service continuity and saving time of the terminal equipment. electricity demand.

FIG. 3 shows an interaction flow chart of a cell search method according to an embodiment of the present application, and the method may be executed interactively by a terminal device and a network device. For example, the terminal device 110 shown in FIG. 1 and the network device 120 shown in FIG. 1 .

S310: The network device sends the cell search indication information of the target frequency point to the terminal device.

S320: The terminal device performs a cell search according to the cell search indication information of the target frequency point.

Wherein, the target frequency point includes: the service frequency point of the terminal device, and/or at least one adjacent frequency associated with the service frequency point.

It should be understood that the serving frequency of the terminal device refers to the frequency of the serving cell of the terminal device.

It should be understood that, in this application, adjacent frequencies are also described as adjacent frequency points, which are not limited in this application.

For different situations of target frequency points, the cell search indication information will be described in detail below:

Optionally, in the case where the target frequency is the service frequency of the terminal device, the cell search indication information is used to indicate that the service frequency of the terminal device is the frequency of the highest priority search, the frequency of the lowest priority search, or does not need to be used. frequency of the search.

Optionally, when the target frequency is at least one adjacent frequency associated with the serving frequency, each adjacent frequency in the at least one adjacent frequency associated with the serving frequency is configured with its own cell search indication information, and the cell search indication information The corresponding adjacent frequencies used to indicate that the service frequency points are associated are the frequency points searched with the highest priority, the frequency points searched with the lowest priority, or the frequency points that do not need to be searched.

Exemplarily, Table 2 shows the one-to-one correspondence between the N adjacent frequencies associated with the serving frequency and the N cell search indication information, where N is the number of adjacent frequencies associated with the serving frequency:

Table 2

邻频1 Adjacent frequency 1	小区搜索指示信息1Cell search indication information 1
邻频2Adjacent frequency 2	小区搜索指示信息2Cell search indication information 2
……...	……...
邻频NAdjacent frequency N	小区搜索指示信息NCell search indication information N

Optionally, when the target frequency is at least one adjacent frequency associated with the serving frequency, all adjacent frequencies in the at least one adjacent frequency associated with the serving frequency are configured with a common cell search indication information, and the cell search indication information The at least one adjacent frequency used to indicate that the service frequency point is associated is a frequency point searched with the highest priority, a frequency point searched with the lowest priority, or a frequency point that does not need to be searched.

Exemplarily, Table 3 shows the correspondence between N adjacent frequencies associated with the serving frequency and 1 cell search indication information, where N is the number of adjacent frequencies associated with the serving frequency, and this 1 cell search indication The information is the public cell search indication information of N adjacent frequencies:

table 3

Optionally, when the target frequency is at least one adjacent frequency associated with the serving frequency, a part of the adjacent frequencies in the at least one adjacent frequency associated with the serving frequency is configured with a common cell search indication information, and at least one adjacent frequency. Each adjacent frequency in another part of the adjacent frequency is configured with its own cell search indication information, and the cell search indication information is used to indicate that the corresponding adjacent frequency associated with the serving frequency is the frequency point for the highest priority search and the lowest priority search frequency. frequency points or frequency points that do not need to be searched.

Exemplarily, Table 4 shows the correspondence between N+M adjacent frequencies associated with the service frequency and N+1 cell search indication information, where N+M is the number of adjacent frequencies associated with the service frequency:

Table 4

As shown in Table 4, adjacent frequencies 1 to N correspond to one cell search indication information respectively, and adjacent frequencies N+1 to N+M correspond to one public cell search indication information, that is, cell search indication information N+1.

Optionally, when the target frequency is the service frequency and at least one adjacent frequency associated with the serving frequency, the serving frequency and at least one adjacent frequency associated with the serving frequency are configured with a common cell search indication information, and the cell The search indication information is used to indicate that the service frequency point and at least one adjacent frequency associated with the service frequency point are the frequency point searched with the highest priority, the frequency point searched with the lowest priority, or the frequency point that does not need to be searched.

Exemplarily, Table 5 shows the correspondence between the service frequency and the N adjacent frequencies associated with the service frequency and 1 cell search indication information, where N is the number of adjacent frequencies associated with the service frequency, and 1 The cell search indication information is the public cell search indication information of the serving frequency point and the N adjacent frequencies associated with the serving frequency point:

table 5

Optionally, in the case where the target frequency is the service frequency and at least one adjacent frequency associated with the service frequency, a part of the adjacent frequency and the serving frequency in the at least one adjacent frequency associated with the service frequency are configured with a common cell. Search indication information, and each adjacent frequency in another part of the adjacent frequency in at least one adjacent frequency associated with the serving frequency point is configured with its own cell search indication information, and the cell search indication information is used to indicate that the corresponding frequency point is the highest priority search , the lowest priority search frequency, or the frequency that does not need to be searched.

Exemplarily, Table 6 shows the correspondence between the service frequency and the N+M adjacent frequencies associated with the service frequency and the M+1 cell search indication information, where N+M is the adjacent service frequency associated with the service frequency. The number of frequencies, the serving frequency and adjacent frequencies 1 to N correspond to one public cell search indication information, and adjacent frequencies N+1 to N+M each correspond to one cell search indication information:

Table 6

Optionally, in the case where the target frequency is the service frequency and at least one adjacent frequency associated with the service frequency, a part of the adjacent frequency and the service frequency in the at least one adjacent frequency associated with the service frequency are configured with a common cell. The search indication information, and another part of the adjacent frequency in the at least one adjacent frequency associated with the serving frequency point is configured with another common cell search indication information, and the cell search indication information is used to indicate that the corresponding frequency point is the highest priority search frequency point, Frequency points to be searched with the lowest priority or frequency points that do not need to be searched.

Exemplarily, Table 7 shows the correspondence between the service frequency and the N+M adjacent frequencies associated with the service frequency and the 2 cell search indication information, where N+M is the adjacent frequency associated with the service frequency. The number of serving frequencies and adjacent frequencies 1 to N correspond to 1 public cell search indication information 1, and adjacent frequencies N+1 to N+M correspond to 1 public cell search indication information 2:

Table 7

It should be understood that the cell search indication information described above for different situations of the target frequency point is only an example of the present application, and should not be construed as a limitation on the present application. For example, the present application also includes the following technical solutions, where the serving frequency and at least one adjacent frequency associated with it each correspond to one cell search indication information. Alternatively, the serving frequency and adjacent frequencies 1 to N correspond to one public cell search indication information 1, adjacent frequencies N+1 to N+M1 correspond to one public cell search indication information 2, and adjacent frequencies N+M1+1 to N+ M corresponds to 1 public cell search indication information 3 .

It should be noted that, after the terminal device obtains the cell search indication information, if the cell search indication information indicates that the corresponding frequency point is the frequency point of the highest priority search, the terminal device will preferentially search for the frequency point corresponding to the frequency point when performing the cell search. cell; if the cell search indication information indicates that the corresponding frequency point is the frequency point to be searched with the lowest priority, the terminal device will first search for cells corresponding to other high-priority frequency points when performing cell search, and finally search for the cell corresponding to the frequency point. cell; if the cell search indication information indicates that the corresponding frequency point is a frequency point that does not need to be searched, the terminal device ignores the cell corresponding to the frequency point when performing cell search.

In the present application, the terminal device can obtain the cell search indication information, and can quickly search for a suitable cell according to the information, for example: search the frequency point of the highest priority search first, or search the frequency point of the lowest priority search last, or Frequency points that do not need to be searched are ignored, so as to meet the service continuity and power saving requirements of terminal equipment.

Optionally, the cell search indication information has two configuration modes, one is an explicit configuration mode, and the other is an implicit configuration mode.

The following first describes the explicit configuration of the cell search indication information:

Optionally, the cell search indication information occupies at least one bit, and the value of at least one bit is used to indicate that the corresponding frequency point is the frequency point searched with the highest priority, the frequency point searched with the lowest priority, or the frequency point that does not need to be searched.

Exemplarily, for example, the cell search indication information occupies one bit, and when the bit takes a value of 1, it is used to indicate that the corresponding frequency point is the frequency point for the highest priority search, the frequency point for the lowest priority search, or the frequency point that does not need to be searched. point. Or, the cell search indication information occupies two bits. When the two bits are 11, they are used to indicate that the corresponding frequency is the frequency for the highest priority search, the frequency for the lowest priority search, or the frequency that does not need to be searched. point.

The following describes the implicit configuration of the cell search indication information:

Optionally, the cell search indication information is a characteristic parameter, and whether the terminal device has configured or acquired the characteristic parameter to indicate that the corresponding frequency point is the frequency point for the highest priority search, the frequency point for the lowest priority search, or the frequency point that does not need to be searched . For example, if the terminal device is configured or acquired the characteristic parameter, it means that the corresponding frequency point is the frequency point searched with the highest priority, the frequency point searched with the lowest priority, or the frequency point that does not need to be searched.

Optionally, the characteristic parameters include at least one of the following:

Feature parameter 1: PLMN or SNPN list configuration information or access control related network identification list configuration information or temporary network identification list configuration information.

Feature parameter 2: Indication information whether the terminal device is allowed to perform authentication through the service network.

Feature parameter 3: Group identification information that allows the terminal device to be authenticated through the service network.

Feature parameter 4: Whether the terminal device is allowed to initiate a network authentication request on the serving network if the SNPN or PLMN network identifier maintained for serving network authentication does not match any SNPN or PLMN network identifier broadcast by the cell system information instruction information.

Feature parameter 5: Whether the terminal device is allowed to access through the service network and obtain the indication information of the subscription information.

Feature parameter 6: Allows the terminal device to access through the service network and obtain the group identification information of the subscription information.

Feature parameter 7: PLMN, SNPN, access control-related network identifier or temporary network identifier indicating whether emergency communication is allowed.

It should be understood that the above characteristic parameters are also described as characteristic parameter information, which is not limited in this application.

It should be understood that the access control-related network identifier is similar to the PLMN ID or SNPN ID, that is, the actual meaning is the same, but the length of the access control-related network identifier may be different from the PLMN ID or SNPN ID. Similarly, the temporary network identifier is similar to the PLMN ID or SNPN ID, that is, the actual meaning is the same, except that it is the temporary identifier of the PLMN or SNPN.

It should be understood that the service network is also described as the current service network, and the service network may be a third-party network currently accessed by the terminal device, that is, the currently accessed NPN network.

Optionally, any item in the feature parameter except the PLMN list configuration information or the SNPN list configuration information or the access control related network identifier list configuration information or the temporary network identifier list configuration information includes at least one of the following configuration granularities: PLMN or SNPN granularity, CAG granularity, cell granularity, access control related network identification granularity, temporary network identification granularity. That is, the configuration granularity of the above characteristic parameters 2-7 may be at least one of PLMN or SNPN granularity, CAG granularity, cell granularity, access control related network identification granularity, and temporary network identification granularity.

It is worth mentioning that when the configuration granularity of characteristic parameters 2-7 is cell granularity, they are parallel parameters with characteristic parameter 1, as shown in Table 8:

Table 8: Schematic representation of cell granularity configuration format

特征参数1 Feature parameter 1
特征参数2Feature parameter 2
特征参数3Feature parameter 3
特征参数4Feature parameter 4
特征参数5Feature parameter 5
特征参数6Feature parameter 6
特征参数7Feature parameter 7

When the configuration granularity of feature parameters 2-7 is PLMN or SNPN granularity, they are the next-level association configuration of feature parameter 1, as shown in Table 9:

Table 9: Schematic representation of PLMN/SNPN/access control related network identifier/temporary network identifier granularity configuration format

When the configuration granularity of feature parameters 2-7 is CAG granularity, they are the next-level associated configurations of the CAG information associated with feature parameter 1, as shown in Table 10:

Table 10: Schematic representation of CAG granularity configuration format

Optionally, the cell search indication information is carried by the cell system broadcast information, or the cell search indication information is carried by dedicated signaling.

It should be noted that, no matter the implicitly configured or explicitly configured cell search indication information, it may be carried by the cell system broadcast information, or the cell search indication information may be carried by dedicated signaling.

Optionally, each cell search indication information is associated with a cell search assistance information, wherein the cell search assistance information is used to assist the cell search indication information to perform cell search.

It should be understood that, for the serving frequency point and/or at least one adjacent frequency associated with the serving frequency point, after the terminal device obtains the cell search assistance information, combined with the cell search indication information, the terminal device always prioritizes the search that satisfies the configuration of the cell search assistance information. The cell that meets the cell search assistance information configuration will only be searched for cells that meet the cell search assistance information configuration, or the cells that meet the cell search assistance information configuration will not be searched.

It should be understood that the cell search indication information corresponds to the cell search assistance information one-to-one. For example, when the serving frequency and at least one adjacent frequency associated with the serving frequency correspond to a public cell search indication, then the public cell search indication The auxiliary information is searched for one cell. When the serving frequency and at least one adjacent frequency associated with the serving frequency correspond to a respective cell search indication information, the cell search indication information corresponds to a respective cell search assistance information.

Optionally, when the cell search indication information is carried by the cell system broadcast information, the cell search assistance information includes at least one of the following: PCI list (list) configuration, SCS list configuration, bandwidth (band) list configuration, synchronization measurement time Configuration (Synchronization Measurement Timing Configuration, SMTC) configuration.

Optionally, when the cell search indication information is carried by dedicated signaling, the cell search assistance information includes at least one of the following: PCI list configuration, SCS list configuration, bandwidth list configuration, SMTC configuration, and valid duration timer information.

Optionally, in the case that the valid duration timer does not expire, the cell search indication information is not invalid; otherwise, the cell search indication information is invalid.

It should be understood that the above one or more configurations included in the cell search assistance information may be in a parallel relationship or have a superior-subordinate relationship, which is not limited in this application.

Exemplarily, the PCI list configuration and the SCS list configuration shown in Table 11 are in a parallel relationship.

Table 11

Exemplarily, the bandwidth list configuration and the SCS list configuration shown in Table 12 are in a subordinate relationship.

Table 12

To sum up, in the present application, the configuration mode of the cell search indication information may be an implicit or explicit configuration mode, so that the cell search indication information can be flexibly configured. And in this application, the terminal device can also obtain the cell search assistance information, combined with the cell search indication information, the terminal device always preferentially searches for cells that satisfy the cell search assistance information configuration, or searches in other cells that do not meet the cell search assistance information configuration. After that, the cell that satisfies the configuration of the cell search assistance information will be searched, or the cell that satisfies the configuration of the cell search assistance information will not be searched. Therefore, the cell search efficiency can be further improved, thereby meeting the service continuity and power saving requirements of the terminal equipment.

FIG. 4 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application. As shown in FIG. 4 , the terminal device 400 includes: a processing unit 410, configured to perform a cell search according to the cell search indication information of the target frequency point. Wherein, the target frequency point includes: the service frequency point of the terminal device, and/or at least one adjacent frequency associated with the service frequency point.

Optionally, in the case where the target frequency is the service frequency and at least one adjacent frequency associated with the service frequency, a part of the adjacent frequency and the service frequency in the at least one adjacent frequency associated with the service frequency are configured with a common cell. Search indication information, and each adjacent frequency in another part of the adjacent frequency in at least one adjacent frequency associated with the serving frequency point is configured with its own cell search indication information, and the cell search indication information is used to indicate that the corresponding frequency point is the highest priority search , the lowest priority search frequency, or the frequency that does not need to be searched.

Optionally, the cell search indication information is a characteristic parameter, and whether the terminal device has configured or acquired the characteristic parameter to indicate that the corresponding frequency point is the frequency point for the highest priority search, the frequency point for the lowest priority search, or the frequency point that does not need to be searched .

PLMN or SNPN list configuration information or access control related network identification list configuration information or temporary network identification list configuration information.

Indication information of whether to allow the terminal device to authenticate through the service network.

Group identification information that allows terminal devices to authenticate through the service network.

Whether the terminal device is allowed to initiate a network authentication request in the serving network if the SNPN or PLMN network identifier maintained for serving network authentication does not match any SNPN or PLMN network identifier broadcast by the cell system information.

Indication information whether the terminal device is allowed to access and obtain subscription information through the service network.

Allows the terminal device to access and obtain the group identification information of the subscription information through the service network.

Indication information of whether emergency communication is allowed by PLMN, SNPN, access control-related network identity or temporary network identity.

Optionally, any item in the feature parameter except the PLMN list configuration information or the SNPN list configuration information or the access control related network identifier list configuration information or the temporary network identifier list configuration information includes at least one of the following configuration granularities: PLMN or SNPN granularity, CAG granularity, cell granularity, access control related network identification granularity, temporary network identification granularity.

Optionally, the cell search indication information is associated with a cell search assistance information, wherein the cell search assistance information is used to assist the cell search indication information to perform cell search.

Optionally, when the cell search indication information is carried by the cell system broadcast information, the cell search assistance information includes at least one of the following: PCI list configuration, SCS list configuration, bandwidth list configuration, and SMTC configuration.

Optionally, in the case that the valid duration timer does not expire, the cell search indication information is not invalid. Otherwise, the cell search indication information is invalid.

Optionally, in some embodiments, the above-mentioned processing unit may be one or more processors.

It should be understood that the terminal device 400 according to the embodiment of the present application may correspond to the terminal device in the method embodiment corresponding to FIG. 3 , and the above-mentioned and other operations and/or functions of the various units in the terminal device 400 are respectively for the purpose of realizing the above-mentioned corresponding FIG. 3 . For the sake of brevity, the corresponding process of the terminal device in the method embodiment will not be repeated here.

FIG. 5 shows a schematic block diagram of a network device 500 according to an embodiment of the present application. As shown in FIG. 5 , the network device 500 includes: a communication unit 510 configured to send cell search indication information of the target frequency point to the terminal device. The cell search indication information is used for the terminal device to perform cell search, and the target frequency includes: the frequency of the serving cell of the terminal device, and/or the frequency of at least one neighboring cell associated with the serving frequency.

Optionally, the cell search indication information occupies at least one bit, and the value of at least one bit is used to indicate that the corresponding frequency point is the frequency point searched with the highest priority, the frequency point searched with the second highest priority, or the frequency point that does not need to be searched.

Optionally, the cell search indication information is a characteristic parameter, and whether the terminal device has configured or acquired the characteristic parameter to indicate that the frequency of the corresponding cell is the frequency of the highest priority search, the frequency of the lowest priority search, or does not need to be searched. Frequency.

Optionally, when the cell search indication information is carried by the cell system broadcast information, the cell search assistance information includes at least one of the following:

PCI list configuration, SCS list configuration, bandwidth list configuration, SMTC configuration.

Optionally, in some embodiments, the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.

It should be understood that the network device 500 according to the embodiment of the present application may correspond to the network device in the method embodiment corresponding to FIG. 3 , and the above-mentioned and other operations and/or functions of each unit in the network device 500 are respectively for the purpose of realizing the above-mentioned corresponding FIG. 3 . For the sake of brevity, the corresponding process of the network device in the method embodiment will not be repeated here.

FIG. 6 is a schematic structural diagram of a communication device 600 provided by an embodiment of the present application. The communication device 600 shown in FIG. 6 includes a processor 610, and the processor 610 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 6 , the communication device 600 may further include a memory 620 . The processor 610 may call and run a computer program from the memory 620 to implement the methods in the embodiments of the present application.

The memory 620 may be a separate device independent of the processor 610 , or may be integrated in the processor 610 .

Optionally, as shown in FIG. 6 , the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, may send information or data to other devices, or receive other devices Information or data sent by a device.

Among them, the transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include antennas, and the number of the antennas may be one or more.

Optionally, the communication device 600 may specifically be the network device in this embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in each method in the embodiment of the present application. For the sake of brevity, details are not repeated here. .

Optionally, the communication device 600 may specifically be a terminal device in this embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the terminal device in each method in the embodiment of the present application. For the sake of brevity, details are not repeated here. .

FIG. 7 is a schematic structural diagram of an apparatus according to an embodiment of the present application. The apparatus 700 shown in FIG. 7 includes a processor 710, and the processor 710 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 7 , the apparatus 700 may further include a memory 720 . The processor 710 may call and run a computer program from the memory 720 to implement the methods in the embodiments of the present application.

The memory 720 may be a separate device independent of the processor 710 , or may be integrated in the processor 710 .

Optionally, the apparatus 700 may further include an input interface 730 . The processor 710 may control the input interface 730 to communicate with other devices or chips, and specifically, may acquire information or data sent by other devices or chips.

Optionally, the apparatus 700 may further include an output interface 740 . The processor 710 can control the output interface 740 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.

Optionally, the apparatus can be applied to the network equipment in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the network equipment in the various methods of the embodiments of the present application, which are not repeated here for brevity.

Optionally, the apparatus may be applied to the terminal equipment in the embodiments of the present application, and the apparatus may implement the corresponding processes implemented by the terminal equipment in each method of the embodiments of the present application, which will not be repeated here for brevity.

Optionally, the device mentioned in the embodiment of the present application may also be a chip. For example, it can be a system-on-chip, a system-on-a-chip, a system-on-a-chip, or a system-on-a-chip.

FIG. 8 is a schematic block diagram of a communication system 800 provided by an embodiment of the present application. As shown in FIG. 8 , the communication system 800 includes a terminal device 810 and a network device 820 .

The terminal device 810 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 820 can be used to implement the corresponding functions implemented by the network device or the base station in the above method. Repeat.

It should be understood that the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software. The above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Programming logic devices, discrete gate or transistor logic devices, discrete hardware components. The methods, steps, and logic block diagrams disclosed in the embodiments of this application can be implemented or executed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory may be Random Access Memory (RAM), which acts as an external cache. By way of illustration and not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM) ) and direct memory bus random access memory (Direct Rambus RAM, 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.

It should be understood that the above memory is an example but not a limitative description, for example, the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.

Embodiments of the present application further provide a computer-readable storage medium for storing a computer program.

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 enables the computer to execute the corresponding processes implemented by the network device or the base station in each method of the embodiments of the present application, in order to It is concise and will not be repeated here.

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 enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application. , and are not repeated here for brevity.

Embodiments of the present application also provide a computer program product, including computer program instructions.

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 each method of the embodiments of the present application, for the sake of brevity. , and will not be repeated here.

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 each method of the embodiments of the present application, For brevity, details are not repeated here.

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

Optionally, the computer program can be applied to the network device or the base station in the embodiments of the present application, and when the computer program runs on the computer, the computer can execute the corresponding methods implemented by the network device or the base station in each method of the embodiments of the present application. The process, for the sake of brevity, will not be repeated here.

Optionally, the computer program may be applied to the mobile terminal/terminal device in the embodiments of the present application, and when the computer program is run on the computer, the mobile terminal/terminal device implements the various methods of the computer program in the embodiments of the present application. The corresponding process, for the sake of brevity, will not be repeated here.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

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

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. For such understanding, the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. should be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

A cell search method, comprising:

Perform a cell search according to the cell search indication information of the target frequency point;

Wherein, the target frequency point includes: the service frequency point of the terminal device, and/or at least one adjacent frequency associated with the service frequency point.
The method according to claim 1, wherein, when the target frequency is a service frequency of the terminal device, the cell search indication information is used to indicate that the service frequency of the terminal device is The frequencies searched with the highest priority, the frequencies searched with the lowest priority, or the frequencies that do not need to be searched.
The method according to claim 1, wherein when the target frequency is at least one adjacent frequency associated with the serving frequency, each of the at least one adjacent frequency associated with the serving frequency The adjacent frequency is configured with the respective cell search indication information, and the cell search indication information is used to indicate that the corresponding adjacent frequency associated with the serving frequency point is the frequency point for the highest priority search, the frequency point for the lowest priority search, or the frequency point that does not need to be searched. frequency of the search.
The method according to claim 1, wherein when the target frequency is at least one adjacent frequency associated with the serving frequency, all adjacent frequencies in the at least one adjacent frequency associated with the serving frequency The frequency is configured with a common cell search indication information, and the cell search indication information is used to indicate that at least one adjacent frequency associated with the serving frequency point is the frequency point for the highest priority search, the frequency point for the lowest priority search, or Frequency points that do not need to be searched.
The method according to claim 1, wherein, when the target frequency is at least one adjacent frequency associated with the serving frequency, a part of adjacent frequencies in the at least one adjacent frequency associated with the serving frequency Each adjacent frequency is configured with a common cell search indication information, and each adjacent frequency in another part of the at least one adjacent frequency is configured with its own cell search indication information, and the cell search indication information is used The corresponding adjacent frequency associated with the indicated service frequency point is the frequency point searched with the highest priority, the frequency point searched with the lowest priority, or the frequency point that does not need to be searched.
The method according to claim 1, wherein when the target frequency is at least one adjacent frequency associated with the serving frequency and the serving frequency, the serving frequency and the serving At least one adjacent frequency associated with a frequency point is configured with a common cell search indication information, and the cell search indication information is used to indicate that the serving frequency point and at least one adjacent frequency associated with the serving frequency point are the highest priority The frequencies to be searched, the frequencies to be searched with the lowest priority, or the frequencies that do not need to be searched.
The method according to claim 1, wherein when the target frequency is the service frequency and at least one adjacent frequency associated with the service frequency, at least one associated with the service frequency A part of the adjacent frequencies and the serving frequency point are configured with a common cell search indication information, and each adjacent frequency configuration in the other part of the adjacent frequency in at least one adjacent frequency associated with the serving frequency point There is respective cell search indication information, and the cell search indication information is used to indicate that the corresponding frequency point is the frequency point for the highest priority search, the frequency point for the lowest priority search, or the frequency point that does not need to be searched.
The method according to claim 1, wherein when the target frequency is the service frequency and at least one adjacent frequency associated with the service frequency, at least one associated with the service frequency A part of the adjacent frequencies and the serving frequency point are configured with a common cell search indication information, and another part of the adjacent frequencies in the at least one adjacent frequency associated with the serving frequency point is configured with another common all the adjacent frequencies. The cell search indication information is used to indicate that the corresponding frequency point is the frequency point searched with the highest priority, the frequency point searched with the lowest priority, or the frequency point that does not need to be searched.
The method according to any one of claims 1-8, wherein the cell search indication information occupies at least one bit, and the value of the at least one bit is used to indicate that the corresponding frequency point is searched with the highest priority Frequency points, frequency points to be searched with the lowest priority, or frequency points that do not need to be searched.
The method according to any one of claims 1-8, wherein the cell search indication information is a characteristic parameter, and whether the terminal device configures or acquires the characteristic parameter is used to indicate that the corresponding frequency point is the highest Frequency points for priority search, frequencies for lowest priority search, or frequencies for which no search is required.
The method according to claim 10, wherein the characteristic parameters include at least one of the following:

Public land mobile network PLMN or independent non-public network SNPN list configuration information or access control related network identity list configuration information or temporary network identity list configuration information;

Indication information whether the terminal device is allowed to authenticate through the service network;

Group identification information that allows the terminal device to authenticate through the service network;

Whether the terminal device is allowed to initiate a network authentication request in the serving network when the SNPN or PLMN network identity maintained for serving network authentication does not match any SNPN or PLMN network identity broadcast by the cell system information;

Whether the terminal device is allowed to access and obtain the indication information of the subscription information through the service network;

Allow the terminal device to access and obtain the group identification information of the subscription information through the service network;

Indication information of whether emergency communication is allowed by PLMN, SNPN, access control-related network identity or temporary network identity.
The method according to claim 11, wherein any one of the characteristic parameters except PLMN list configuration information or SNPN list configuration information or access control related network identification list configuration information or temporary network identification list configuration information Items include at least one of the following configuration granularities:

PLMN or SNPN granularity, CAG granularity, cell granularity, access control related network identification granularity, temporary network identification granularity.
The method according to any one of claims 1-12, wherein the cell search indication information is carried by cell system broadcast information, or the cell search indication information is carried by dedicated signaling.
The method according to claim 13, wherein the cell search indication information is associated with a cell search assistance information, wherein the cell search assistance information is used to assist the cell search indication information to perform cell search.
The method according to claim 14, wherein when the cell search indication information is carried by cell system broadcast information, the cell search assistance information comprises at least one of the following:

Physical cell identification PCI list configuration, subcarrier interval SCS list configuration, bandwidth list configuration, synchronization measurement time configuration SMTC configuration.
The method according to claim 14, wherein when the cell search indication information is carried by dedicated signaling, the cell search assistance information comprises at least one of the following:

PCI list configuration, SCS list configuration, bandwidth list configuration, SMTC configuration, valid duration timer information.
The method according to claim 16, wherein the cell search indication information is not invalid when the valid duration timer does not expire; otherwise, the cell search indication information is invalid.
A cell search method, comprising:

Send the cell search indication information of the target frequency point to the terminal device;

Wherein, the cell search indication information is used for the terminal equipment to perform cell search, and the target frequency point includes: the frequency point of the serving cell of the terminal equipment, and/or at least one neighbor associated with the serving frequency point frequency of the cell.
The method according to claim 18, wherein when the target frequency is a service frequency of the terminal device, the cell search indication information is used to indicate that the service frequency of the terminal device is The frequencies searched with the highest priority, the frequencies searched with the lowest priority, or the frequencies that do not need to be searched.
The method according to claim 18, wherein when the target frequency is at least one adjacent frequency associated with the serving frequency, each of the at least one adjacent frequency associated with the serving frequency The adjacent frequency is configured with the respective cell search indication information, and the cell search indication information is used to indicate that the corresponding adjacent frequency associated with the serving frequency point is the frequency point for the highest priority search, the frequency point for the lowest priority search, or the frequency point that does not need to be searched. frequency of the search.
The method according to claim 18, wherein when the target frequency is at least one adjacent frequency associated with the serving frequency, all adjacent frequencies in the at least one adjacent frequency associated with the serving frequency The frequency is configured with a common cell search indication information, and the cell search indication information is used to indicate that at least one adjacent frequency associated with the serving frequency point is the frequency point for the highest priority search, the frequency point for the lowest priority search, or Frequency points that do not need to be searched.
The method according to claim 18, wherein when the target frequency is at least one adjacent frequency associated with the serving frequency, a part of adjacent frequencies in the at least one adjacent frequency associated with the serving frequency Each adjacent frequency is configured with a common cell search indication information, and each adjacent frequency in another part of the at least one adjacent frequency is configured with its own cell search indication information, and the cell search indication information is used The corresponding adjacent frequency associated with the indicated service frequency point is the frequency point searched with the highest priority, the frequency point searched with the lowest priority, or the frequency point that does not need to be searched.
The method according to claim 18, wherein when the target frequency is at least one adjacent frequency associated with the serving frequency and the serving frequency, the serving frequency and the serving frequency At least one adjacent frequency associated with a frequency point is configured with a common cell search indication information, and the cell search indication information is used to indicate that the serving frequency point and at least one adjacent frequency associated with the serving frequency point are the highest priority The frequencies to be searched, the frequencies to be searched with the lowest priority, or the frequencies that do not need to be searched.
The method according to claim 22, wherein when the target frequency is the serving frequency and at least one adjacent frequency associated with the serving frequency, at least one associated with the serving frequency A part of the adjacent frequencies and the serving frequency point are configured with a common cell search indication information, and each adjacent frequency configuration in the other part of the adjacent frequency in at least one adjacent frequency associated with the serving frequency point There is respective cell search indication information, and the cell search indication information is used to indicate that the corresponding frequency point is the frequency point for the highest priority search, the frequency point for the lowest priority search, or the frequency point that does not need to be searched.
The method according to claim 22, wherein when the target frequency is the serving frequency and at least one adjacent frequency associated with the serving frequency, at least one associated with the serving frequency A part of the adjacent frequencies and the serving frequency point are configured with a common cell search indication information, and another part of the adjacent frequencies in the at least one adjacent frequency associated with the serving frequency point is configured with another common all the adjacent frequencies. The cell search indication information is used to indicate that the corresponding frequency point is the frequency point searched with the highest priority, the frequency point searched with the lowest priority, or the frequency point that does not need to be searched.
The method according to any one of claims 18-25, wherein the cell search indication information occupies at least one bit, and the value of the at least one bit is used to indicate that the corresponding frequency point is searched with the highest priority Frequency points, frequency points to be searched with the second highest priority, or frequency points that do not need to be searched.
The method according to any one of claims 18-25, wherein the cell search indication information is a characteristic parameter, and whether the terminal device has configured or acquired the characteristic parameter to indicate the frequency of the corresponding cell It is the frequency of the highest priority search, the frequency of the lowest priority search, or the frequency that does not need to be searched.
The method according to claim 27, wherein the characteristic parameter comprises at least one of the following:

PLMN or SNPN list configuration information or access control related network identification list configuration information or temporary network identification list configuration information;

Indication information whether the terminal device is allowed to authenticate through the service network;

Group identification information that allows the terminal device to authenticate through the service network;

Whether the terminal device is allowed to initiate a network authentication request in the serving network under the condition that the SNPN or PLMN network identifier maintained for serving network authentication does not match any SNPN or PLMN network identifier broadcast by the cell system information;

Whether the terminal device is allowed to access and obtain the indication information of the subscription information through the service network;

Allow the terminal device to access and obtain the group identification information of the subscription information through the service network;

Indication information of whether emergency communication is allowed by PLMN, SNPN, access control-related network identity or temporary network identity.
The method according to claim 28, wherein any one of the characteristic parameters except PLMN list configuration information or SNPN list configuration information or access control related network identification list configuration information or temporary network identification list configuration information Items include at least one of the following configuration granularities:

PLMN or SNPN granularity, CAG granularity, cell granularity, access control related network identification granularity, temporary network identification granularity.
The method according to any one of claims 18-29, wherein the cell search indication information is carried through cell system broadcast information, or the cell search indication information is carried through dedicated signaling.
The method according to claim 30, wherein the cell search indication information is associated with a cell search assistance information, wherein the cell search assistance information is used to assist the cell search indication information to perform cell search.
The method according to claim 31, wherein, when the cell search indication information is carried by cell system broadcast information, the cell search assistance information comprises at least one of the following:

PCI list configuration, SCS list configuration, bandwidth list configuration, SMTC configuration.
The method according to claim 31, wherein when the cell search indication information is carried by dedicated signaling, the cell search assistance information comprises at least one of the following:

PCI list configuration, SCS list configuration, bandwidth list configuration, SMTC configuration, valid duration timer information.
The method according to claim 33, wherein the cell search indication information is not invalid when the valid duration timer does not expire; otherwise, the cell search indication information is invalid.
A terminal device, characterized in that it includes:

a processing unit, configured to perform a cell search according to the cell search indication information of the target frequency point;

Wherein, the target frequency point includes: the service frequency point of the terminal device, and/or at least one adjacent frequency associated with the service frequency point.
The terminal device according to claim 34, wherein when the target frequency is a service frequency of the terminal, the cell search indication information is used to indicate the service frequency of the terminal It is the frequency of the highest priority search, the frequency of the lowest priority search, or the frequency that does not need to be searched.
The terminal device according to claim 34, wherein when the target frequency is at least one adjacent frequency associated with the serving frequency, each of the at least one adjacent frequency associated with the serving frequency An adjacent frequency is configured with the respective cell search indication information, and the cell search indication information is used to indicate that the corresponding adjacent frequency associated with the serving frequency is the frequency for the highest priority search, the frequency for the lowest priority search, or Frequency points that do not need to be searched.
The terminal device according to claim 34, wherein when the target frequency is at least one adjacent frequency associated with the serving frequency, all of the at least one adjacent frequency associated with the serving frequency The adjacent frequency is configured with a common cell search indication information, and the cell search indication information is used to indicate that at least one adjacent frequency associated with the serving frequency point is the frequency point for the highest priority search and the frequency point for the lowest priority search. Or frequency points that do not need to be searched.
The terminal device according to claim 34, wherein when the target frequency is at least one adjacent frequency associated with the serving frequency, a part of the at least one adjacent frequency associated with the serving frequency The adjacent frequency is configured with a common cell search indication information, and each adjacent frequency in another part of the adjacent frequency in the at least one adjacent frequency is configured with the respective cell search indication information, the cell search indication information It is used to indicate that the corresponding adjacent frequency associated with the service frequency point is the frequency point searched with the highest priority, the frequency point searched with the lowest priority, or the frequency point that does not need to be searched.
The terminal device according to claim 34, wherein when the target frequency is at least one adjacent frequency associated with the serving frequency and the serving frequency, the serving frequency and the At least one adjacent frequency associated with the serving frequency is configured with a common cell search indication information, and the cell search indication information is used to indicate that the serving frequency and at least one adjacent frequency associated with the serving frequency are the highest priority The frequencies that are searched with the highest priority, the frequencies that are searched with the lowest priority, or the frequencies that do not need to be searched.
The terminal device according to claim 34, wherein when the target frequency is the serving frequency and at least one adjacent frequency associated with the serving frequency, at least one associated with the serving frequency A part of adjacent frequencies in an adjacent frequency and the serving frequency point are configured with a common cell search indication information, and each adjacent frequency in the other part of adjacent frequencies in at least one adjacent frequency associated with the serving frequency point The respective cell search indication information is configured, and the cell search indication information is used to indicate that the corresponding frequency point is the frequency point searched with the highest priority, the frequency point searched with the lowest priority, or the frequency point that does not need to be searched.
The terminal device according to claim 34, wherein when the target frequency is the serving frequency and at least one adjacent frequency associated with the serving frequency, at least one associated with the serving frequency A part of adjacent frequencies in an adjacent frequency and the serving frequency point are configured with a common cell search indication information, and another part of adjacent frequencies in at least one adjacent frequency associated with the serving frequency point is configured with another common frequency. The cell search indication information is used to indicate that the corresponding frequency point is the frequency point searched with the highest priority, the frequency point searched with the lowest priority, or the frequency point that does not need to be searched.
The terminal device according to any one of claims 35-42, wherein the cell search indication information occupies at least one bit, and the value of the at least one bit is used to indicate that the corresponding frequency point is the highest priority search , the lowest priority search frequency, or the frequency that does not need to be searched.
The terminal device according to any one of claims 35-42, wherein the cell search indication information is a characteristic parameter, and whether the terminal device configures or acquires the characteristic parameter is used to indicate that the corresponding frequency point is The frequencies searched with the highest priority, the frequencies searched with the lowest priority, or the frequencies that do not need to be searched.
The terminal device according to claim 44, wherein the characteristic parameter comprises at least one of the following:

PLMN or SNPN list configuration information or access control related network identification list configuration information or temporary network identification list configuration information;

Indication information whether the terminal device is allowed to authenticate through the service network;

Group identification information that allows the terminal device to authenticate through the service network;

Whether the terminal device is allowed to initiate a network authentication request in the serving network under the condition that the SNPN or PLMN network identifier maintained for serving network authentication does not match any SNPN or PLMN network identifier broadcast by the cell system information;

Whether the terminal device is allowed to access and obtain the indication information of the subscription information through the service network;

Allow the terminal device to access and obtain the group identification information of the subscription information through the service network;

Indication information of whether emergency communication is allowed by PLMN, SNPN, access control-related network identity or temporary network identity.
The terminal device according to claim 45, wherein any of the characteristic parameters except PLMN list configuration information or SNPN list configuration information or access control related network identification list configuration information or temporary network identification list configuration information An item includes at least one of the following configuration granularities:

PLMN or SNPN granularity, CAG granularity, cell granularity, access control related network identification granularity, temporary network identification granularity.
The terminal device according to any one of claims 35-46, wherein the cell search indication information is borne by cell system broadcast information, or the cell search indication information is borne by dedicated signaling.
The terminal device according to claim 47, wherein the cell search instruction information is associated with a cell search assistance information, wherein the cell search assistance information is used to assist the cell search instruction information to perform cell search.
The terminal device according to claim 48, wherein when the cell search indication information is carried by cell system broadcast information, the cell search assistance information includes at least one of the following:

PCI list configuration, SCS list configuration, bandwidth list configuration, SMTC configuration.
The terminal device according to claim 48, wherein when the cell search indication information is carried by dedicated signaling, the cell search assistance information includes at least one of the following:

PCI list configuration, SCS list configuration, bandwidth list configuration, SMTC configuration, valid duration timer information.
The terminal device according to claim 50, wherein the cell search indication information is not invalid when the valid duration timer does not expire; otherwise, the cell search indication information is invalid.
A network device, characterized in that it includes:

a communication unit, configured to send cell search indication information of the target frequency point to the terminal device;

Wherein, the cell search indication information is used for the terminal equipment to perform cell search, and the target frequency point includes: the frequency point of the serving cell of the terminal equipment, and/or at least one neighbor associated with the serving frequency point frequency of the cell.
The network device according to claim 52, wherein when the target frequency is a service frequency of the terminal device, the cell search indication information is used to indicate the service frequency of the terminal device It is the frequency of the highest priority search, the frequency of the lowest priority search, or the frequency that does not need to be searched.
The network device according to claim 52, wherein when the target frequency is at least one adjacent frequency associated with the serving frequency, each of the at least one adjacent frequency associated with the serving frequency An adjacent frequency is configured with the respective cell search indication information, and the cell search indication information is used to indicate that the corresponding adjacent frequency associated with the serving frequency point is the frequency point for the highest priority search, the frequency point for the lowest priority search, or Frequency points that do not need to be searched.
The network device according to claim 52, wherein when the target frequency is at least one adjacent frequency associated with the serving frequency, all of the at least one adjacent frequency associated with the serving frequency The adjacent frequency is configured with a common cell search indication information, and the cell search indication information is used to indicate that at least one adjacent frequency associated with the serving frequency point is the frequency point for the highest priority search and the frequency point for the lowest priority search. Or frequency points that do not need to be searched.
The network device according to claim 52, wherein when the target frequency is at least one adjacent frequency associated with the serving frequency, a part of the at least one adjacent frequency associated with the serving frequency The adjacent frequency is configured with a common cell search indication information, and each adjacent frequency in another part of the adjacent frequency in the at least one adjacent frequency is configured with the respective cell search indication information, the cell search indication information It is used to indicate that the corresponding adjacent frequency associated with the service frequency point is the frequency point searched with the highest priority, the frequency point searched with the lowest priority, or the frequency point that does not need to be searched.
The network device according to claim 52, wherein when the target frequency is at least one adjacent frequency associated with the serving frequency and the serving frequency, the serving frequency and the At least one adjacent frequency associated with the serving frequency is configured with a common cell search indication information, and the cell search indication information is used to indicate that the serving frequency and at least one adjacent frequency associated with the serving frequency are the highest priority The frequencies that are searched with the highest priority, the frequencies that are searched with the lowest priority, or the frequencies that do not need to be searched.
The network device according to claim 52, wherein when the target frequency is the serving frequency and at least one adjacent frequency associated with the serving frequency, at least one associated with the serving frequency A part of adjacent frequencies in an adjacent frequency and the serving frequency point are configured with a common cell search indication information, and each adjacent frequency in the other part of adjacent frequencies in at least one adjacent frequency associated with the serving frequency point The respective cell search indication information is configured, and the cell search indication information is used to indicate that the corresponding frequency point is the frequency point searched with the highest priority, the frequency point searched with the lowest priority, or the frequency point that does not need to be searched.
The network device according to claim 52, wherein when the target frequency is the serving frequency and at least one adjacent frequency associated with the serving frequency, at least one associated with the serving frequency A part of adjacent frequencies in an adjacent frequency and the serving frequency point are configured with a common cell search indication information, and another part of adjacent frequencies in at least one adjacent frequency associated with the serving frequency point is configured with another common frequency. The cell search indication information is used to indicate that the corresponding frequency point is the frequency point searched with the highest priority, the frequency point searched with the lowest priority, or the frequency point that does not need to be searched.
The network device according to any one of claims 52-59, wherein the cell search indication information occupies at least one bit, and the value of the at least one bit is used to indicate that the corresponding frequency point is the highest priority search frequency, the frequency that is searched with the second highest priority, or the frequency that does not need to be searched.
The network device according to any one of claims 52-59, wherein the cell search indication information is a characteristic parameter, and whether the terminal device has configured or acquired the characteristic parameter to indicate the frequency of the corresponding cell Points are frequencies searched with the highest priority, frequencies searched with the lowest priority, or frequencies that do not need to be searched.
The network device according to claim 61, wherein the characteristic parameter comprises at least one of the following:

PLMN or SNPN list configuration information or access control related network identification list configuration information or temporary network identification list configuration information;

Indication information whether the terminal device is allowed to authenticate through the service network;

Group identification information that allows the terminal device to authenticate through the service network;

Whether the terminal device is allowed to initiate a network authentication request in the serving network when the SNPN or PLMN network identity maintained for serving network authentication does not match any SNPN or PLMN network identity broadcast by the cell system information;

Whether the terminal device is allowed to access and obtain the indication information of the subscription information through the service network;

Allow the terminal device to access and obtain the group identification information of the subscription information through the service network;

Indication information of whether emergency communication is allowed by PLMN, SNPN, access control-related network identity or temporary network identity.
The network device according to claim 62, wherein any of the characteristic parameters except PLMN list configuration information or SNPN list configuration information or access control related network identification list configuration information or temporary network identification list configuration information An item includes at least one of the following configuration granularities:

PLMN or SNPN granularity, CAG granularity, cell granularity, access control related network identification granularity, temporary network identification granularity.
The network device according to any one of claims 52-63, wherein the cell search indication information is borne by cell system broadcast information, or the cell search indication information is borne by dedicated signaling.
The network device according to claim 64, wherein the cell search instruction information is associated with a cell search assistance information, wherein the cell search assistance information is used to assist the cell search instruction information to perform cell search.
The network device according to claim 65, wherein when the cell search indication information is carried by cell system broadcast information, the cell search assistance information includes at least one of the following:

PCI list configuration, SCS list configuration, bandwidth list configuration, SMTC configuration.
The network device according to claim 65, wherein, when the cell search indication information is carried by dedicated signaling, the cell search assistance information includes at least one of the following:

PCI list configuration, SCS list configuration, bandwidth list configuration, SMTC configuration, valid duration timer information.
The network device according to claim 67, wherein the cell search indication information is not invalid when the valid duration timer does not expire; otherwise, the cell search indication information is invalid.
A terminal device, characterized in that it includes: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute the program as claimed in claims 1 to 17 The method of any one.
A network device, characterized in that it comprises: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute the program as described in claims 18 to 34 The method of any one.
An apparatus, characterized by comprising: a processor for calling and running a computer program from a memory, so that a device in which the apparatus is installed executes the method according to any one of claims 1 to 17.
An apparatus, characterized by comprising: a processor for calling and running a computer program from a memory, so that a device in which the apparatus is installed executes the method according to any one of claims 18 to 34.
A computer-readable storage medium, characterized by being used for storing a computer program, the computer program causing a computer to execute the method according to any one of claims 1 to 17.
A computer-readable storage medium, characterized by being used for storing a computer program, the computer program causing a computer to execute the method according to any one of claims 18 to 34.
A computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method of any one of claims 1 to 17.
A computer program product comprising computer program instructions that cause a computer to perform the method of any one of claims 18 to 34.
A computer program, characterized in that the computer program causes a computer to perform the method according to any one of claims 1 to 17.
A computer program, characterized in that the computer program causes a computer to perform the method according to any one of claims 18 to 34.