CN116261206A - Cell searching method and device - Google Patents

Abstract

The application discloses a cell searching method and a cell searching device, which are applied to the technical field of communication. The method comprises the following steps: determining a Closed Subscriber Group (CSG) white list, wherein the CSG white list comprises CSG cell information which can be accessed by User Equipment (UE); the CSG cell information accessible to the UE comprises cell information of N CSG cells, wherein N is an integer greater than or equal to 0; and stopping or not starting the cell search under the condition that the value of N is a preset value and the N CSG cells are matched with the service cells of the UE, and not performing the cell autonomous search under the condition that the number of the CSG cells in the CSG white list is judged to be the preset value and the N CSG cells are matched with the service cells of the UE, so that the power consumption of the UE is reduced and the duration of the UE is prolonged.

Description

A cell search method and device thereof

technical field

The present application relates to the field of communication technologies, and in particular to a cell search method and device thereof.

Background technique

With the increasing demand for wireless data applications and the development of communication technologies, cells used to undertake data hotspot coverage are gradually being put into use. Among them, cells can be divided into ordinary cells and closed subscriber group (Closed subscriber group, CSG) cells, because CSG cells have the advantages of cheap billing, flexible and optional services, etc., CSG cells are gradually being widely used. Wherein, the CSG may refer to a set of user equipment (User Equipment, UE) that can be connected to the home base station. In the CSG cell, one or more home base stations may provide services. Currently, for the UE, in order to ensure the quality of communication, the UE may reselect and switch CSG cells, so the UE can continuously search for cells so that the UE can reside in a certain CSG cell and access the network to communicate. However, the continuous search of the CSG cell by the UE will greatly increase the power consumption of the UE, thus making the battery life of the UE weak.

Therefore, how to reduce the power consumption of the UE on the basis of ensuring the communication quality is an urgent technical problem to be solved at present.

Contents of the invention

The present application discloses a cell search method and device thereof. By determining the cell information of N CSG cells accessible to the UE in the CSG whitelist and matching with the serving cell of the UE, the cell search is stopped or not started, so as to Reduce UE power consumption.

In the first aspect, the embodiment of the present application provides a cell search method, the method includes:

Determine the closed user group CSG white list, the CSG white list includes the CSG cell information that the user equipment UE can access; the CSG cell information that the UE can access includes the cell information of N CSG cells, and N is greater than or equal to 0 Integer; when the value of N is a preset value, and the N CSG cells match the serving cell of the UE, stop or not start the cell search.

In the embodiment of the present application, the UE determines the cell information of N CSG cells that the UE can access included in the CSG whitelist, and N in the CSG whitelist is determined as a preset value, and the N CSG cells are the same as those of the UE. When the accessed serving cell matches, the UE stops or does not start the cell autonomous search, so as to reduce the number of times of searching and reading the system information of the neighboring cell while ensuring the communication quality, and reduce the measurement of the bottom layer and the number of system messages. Read the process, thereby reducing the power consumption of the UE and improving the battery life of the UE.

In a possible implementation manner, determining the closed subscriber group CSG whitelist includes: receiving a CSG cell selection instruction, where the CSG cell selection instruction indicates a first CSG cell; Registering with the first CSG cell: in the case of successfully registering with the first CSG cell, adding the cell information of the first CSG cell to the CSG whitelist. In this embodiment of the application, the UE can update the CSG whitelist when the user manually initiates CSG network selection, and then can determine that there is no need to start the process of autonomous cell search, thereby reducing the power consumption of the UE and improving the battery life of the UE.

In a possible implementation manner, the above-mentioned CSG whitelist includes cell information of the second CSG cell; The cell information of the CSG cell is deleted from the CSG whitelist. In the embodiment of this application, the UE can update the CSG whitelist when it cannot register to a certain CSG cell. If the UE determines that N in the CSG whitelist is a preset value after updating the CSG whitelist, and N CSG cells In the case of matching the serving cell accessed by the UE, the UE does not need to start the autonomous cell search in this scenario, that is, the UE may stop or not start the autonomous cell search to reduce the power consumption of the UE.

In a possible implementation manner, the determination of the CSG whitelist includes: obtaining the CSG whitelist from a user identification card. In the embodiment of the present application, in the actual use scenario, there is a scenario where the CSG whitelist includes a CSG cell. In this scenario, the CSG whitelist is stored in the SIM card, and the whitelist in the SIM card is read when the UE is started. In this way, the UE may stop or not start autonomous cell search in a scenario where a CSG cell is included in the CSG whitelist, so as to reduce the bottom layer measurement and system information reading process, thereby reducing the power consumption of the UE.

In a possible implementation manner, the stopping or not starting the cell search includes: stopping or not starting the cell search when the UE is in an idle state or a connected state. In this embodiment of the application, when the UE is in the idle state or connected state, as long as N in the CSG whitelist is a preset value, and N CSG cells match the serving cell accessed by the UE, The UE can omit some unnecessary cell autonomous search procedures (such as the measurement of neighboring cells and the reading of system information of neighboring cells). The power consumption of the terminal is reduced within a limited range, and the experience of the user and the service life of the terminal are increased.

In a possible implementation manner, the stopping or not starting the cell search includes: receiving a reconfiguration message from the network device, stopping or not starting the cell search; the above reconfiguration message is used to indicate to start the cell search. In this embodiment of the application, when the UE is in the connected state, it can receive a reconfiguration message sent by a network device (such as a base station). The configuration signaling carried in the reconfiguration message can instruct the UE to report the approach to the CSG cell, and then the UE needs to perform Autonomous search, but in the scenario where N in the above CSG whitelist is a preset value, and N CSG cells match the serving cell accessed by the UE, the UE does not need to perform autonomous cell search, so that some CSG whitelists can be discarded. This includes scenarios where there is a CSG cell but there is no need to enable cell autonomous search, which reduces some unnecessary measurements and system message reading, and appropriately reduces the power consumption of the terminal.

In a possible implementation manner, the value of N is 1, and the matching of the N CSG cells with the serving cell of the UE includes that the N CSG cells are the same as the serving cell of the UE. In the embodiment of this application, the specific scenario is that the CSG whitelist includes one CSG cell, and the CSG cell included in the CSG whitelist is the serving cell of the UE, thus distinguishing the subdivided scenarios, and the subdivided Stop or do not start the autonomous cell search in the scenario, and flexibly control the scenario where the UE performs the autonomous cell search, thus eliminating some unnecessary autonomous search procedures (neighbor cell measurement and neighbor cell system message reading), making The UE reduces the power consumption of the terminal within a limited range, increasing user experience and life of the terminal.

In a second aspect, an embodiment of the present application provides a cell search device, the cell search device includes:

The determining unit is configured to determine a closed subscriber group CSG whitelist, where the CSG whitelist includes information about CSG cells accessible to the user equipment UE; the information about CSG cells accessible to the UE includes cell information about N CSG cells, where N is An integer greater than or equal to 0; a stop unit, configured to stop or not start cell search when the value of N is a preset value and the N CSG cells match the serving cell of the UE.

In addition, in this aspect, for other optional implementation manners of the cell search device, reference may be made to the relevant content of the above-mentioned first aspect, which will not be described in detail here.

In a third aspect, the embodiment of the present application provides another cell search device, including a processor; the processor is configured to execute the above-mentioned method in the first aspect.

In a fourth aspect, an embodiment of the present application provides a chip, the chip includes a memory and a processor, the memory stores a computer program, the computer program includes program instructions, and the processor is used to execute the program instructions to implement the above-mentioned Methods.

In the fifth aspect, the embodiment of the present application provides a chip module, the chip module includes a communication interface and a chip, wherein: the communication interface is used for internal communication of the chip module, or for the chip module to communicate with external devices ; The chip is used to execute the above-mentioned method in the first aspect.

In a sixth aspect, an embodiment of the present application provides a computer-readable storage medium, the above-mentioned computer-readable storage medium stores a computer program, the above-mentioned computer program includes program instructions, and when the above-mentioned program instructions are executed, the above-mentioned method in the first aspect is executed. accomplish.

In a seventh aspect, an embodiment of the present application provides a computer program product including a computer program or an instruction. When the computer program or instruction is run on a computer, the computer is made to execute the method as described in the first aspect.

Description of drawings

FIG. 1 is a schematic diagram of a cell search system provided by an embodiment of the present application.

Fig. 2 is a schematic flowchart of a cell search method provided by an embodiment of the present application.

FIG. 3 is a schematic diagram of a specific implementation flow of a cell search method provided in an embodiment of the present application.

FIG. 4 is a schematic structural diagram of a cell search device provided in an embodiment of the present application;

FIG. 5 is a schematic structural diagram of another cell search device provided by an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a chip module provided by an embodiment of the present application.

Detailed ways

It should be understood that the terms "first", "second" and the like involved in the embodiments of the present application are used to distinguish different objects, rather than to describe a specific order. "At least one" in the embodiments of the present application refers to one or more, and multiple refers to two or more. "And/or" in the embodiment of this application describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B, which may indicate the following three situations: A exists alone, and A and B exist simultaneously , B exists alone. Wherein, A and B may be singular or plural. The character "/" can indicate that the contextual objects are an "or" relationship.

"At least one of the following" or similar expressions in the embodiments of the present application refer to any combination of these items, including any combination of a single item or a plurality of items. For example, at least one item (piece) of a, b or c can represent the following seven situations: a, b, c, a and b, a and c, b and c, a, b and c. Wherein, each of a, b, and c may be an element, or a set containing one or more elements. In addition, "not less than" in the embodiments of the present application means "greater than" or "equal to".

First, before further describing the embodiments of the present application in detail, the nouns and terms involved in the embodiments of the present application are described, so as to facilitate the understanding of those skilled in the art. Nouns and terms involved in the embodiments of the present application are applicable to the following explanations:

1. CSG

The so-called CSG refers to a closed user group composed of one or more home base stations, that is, a set of users connected to the home base station (ie, a set of UEs). Wherein, a home base station (Home NodeB, HeNB) is a user-side access device, which is arranged in a home or office and can access a mobile communication network through the Internet (Internet). The radio coverage provided by the HeNB can only be accessed by a set of users authorized to use the services of that CSG cell.

Applied in this application, the CSG cell only allows some UEs to access, and the UEs are UEs that can access the CSG cell. With the explosive growth of wireless data application requirements, CSG cells are gradually put into use. In addition to accessing CSG cells, UEs can also reselect and switch CSG cells. During the reselection and handover process of the CSG cell by the UE, the UE will automatically search for the same frequency and different frequency CSG cells to register and reside in a CSG cell, and the UE is in the process of autonomous CSG cell search. The power consumption of the UE will increase, and the battery life of the UE will decrease.

2. CSG whitelist

The CSG whitelist (whitelist) refers to a list of CSG cells that can be accessed by the UE side. The CSG whitelist may not include any cells, that is, neither CSG cells nor ordinary cells; the CSG whitelist may also only include CSG cells (that is, not include ordinary cells), for example, include at least one CSG cell. Wherein, the CSG whitelist includes the CSG ID of the CSG cell and the corresponding public land mobile network (Public Land Mobile Network, PLMN) identifier (PLMNID). Among them, the CSG whitelist consists of an allowed list and an operator list. The cell information of CSG cells in the allowed list can be added or deleted, and the cell information of CSG cells in the operator list cannot be modified.

Applied in this application, the UE can update and store the CSG white list, and there are usually two ways for the UE to camp on the CSG cell: automatic network selection camping and manual network selection camping. Specifically, the UE can automatically search for a CSG cell in the CSG whitelist, and then access the mobile communication network through the home base station of the CSG cell to complete automatic network selection and camping; the UE can also receive a CSG cell selection instruction (For example, an instruction to manually select a network to camp on input by the user), at this time, the CSG cell indicated by the CSG cell selection instruction is not in the CSG whitelist, and when the UE searches for the CSG cell indicated by the CSG cell selection instruction, it can Register with the CSG cell, and then add the CSG cell to the whitelist. The UE may also delete the CSG cell that cannot be registered in the CSG white list when it cannot be registered to the CSG cell in the CSG white list.

3. Non-access stratum (NAS)

The NAS layer is mainly used for connection and mobility control between the UE and an authentication management function (authentication management function, AMF). The functions of the NAS layer include general procedures to support UE mobility such as authentication, authentication, general UE configuration update and security control mode procedures; support session management procedures to establish and maintain data connections between UEs and data networks; support NAS transmission procedures To provide short message service (short message service, SMS), lightweight presentation protocol (lightweight presentation protocol, LPP), UE policy container, roaming guide (steering of roaming, SoR) transparent container and UE parameter update information and other payload transmission ; Message security; Billing, etc.

Applied in this application, the NAS layer is mainly used to update the CSG whitelist. For example, the NAS layer can add the cell information of a CSG cell (such as the CSG ID of the CSG cell and its corresponding PLMN ID) to the CSG whitelist. The layer may also delete the cell information (such as the CSG ID of the CSG cell and its corresponding PLMN ID) of a CSG cell already in the CSG whitelist from the CSG whitelist. The NAS layer may transmit the updated CSG whitelist to the radio resource control layer (Radio Resource Control, RRC), so that the RRC determines whether to perform cell autonomous search.

4. RRC layer

The RRC layer is mainly used to process messages between the UE and the base station, including system messages, admission control, security management, cell reselection, measurement reporting, handover and mobility, NAS message transmission, radio resource management, etc. The functions of the RRC layer include supporting the system broadcast of the access stratum (AS) and NAS, providing the required channel information for the UE to access the network; supporting the paging initiated by the network device, for paging the idle state (Idle) UE; support establishment, reconfiguration and release of RRC connection; support security mode and key management for air interface encryption and integrity protection; establishment, reconfiguration and release of signaling radio bearer (Signalling radio bearer, SRB) and data radio Bearer (data radio bearer, DRB); quality of service (quality of service, QoS) management and slice management; UE measurement control and measurement reporting; wireless link detection and recovery; NAS message delivery, etc.

Applied in this application, the RRC layer can receive the message transmitted by the NAS layer and process the message transmitted by the NAS layer. For example, the RRC layer can determine whether to perform cell autonomous search according to the CSG whitelist transmitted by the NAS layer.

5. Idle state (idle, IDL)

One of the RRC states of the UE, the state after the UE has completed camping in a certain cell, the UE in the RRC_IDL state has no RRC context on the network device, and there is no RRC connection with the network device (such as a base station). There is also no NAS signaling link with the core network, and the UE is registered in a mobility management entity (Mobility management entity, MME), and a context exists in the MME.

Applied in this application, when the UE is in the idle state, the RRC can determine that the CSG whitelist includes the cell information of N CSG cells, the value of N is a preset value, and the N CSG cells match the serving cell of the UE In this case, stop or do not start cell autonomous search.

6. Connection state (Dedicated Channel, DCH)

One of the RRC states of the UE. After the UE completes the random access (Ramdom Access, RA) process, it can be said that the UE enters the connected state or the CONNECTED state.

Applied in this application, when the UE is in the DCH state, the RRC can determine that the CSG whitelist includes the cell information of N CSG cells, the value of N is a preset value, and the N CSG cells match the serving cell of the UE In this case, stop or do not start cell autonomous search.

The following introduces the cell search system involved in the embodiment of the present application. Please refer to FIG. 1 . FIG. 1 is a schematic diagram of a system architecture of a cell search system provided in the embodiment of the present application. The cell search system may include a terminal device 100 and a network device 200 . It should be noted that the cell search system may include but not limited to one network device and two terminal devices. The number and configuration of the devices shown in Figure 1 are for example and do not constitute a limitation to the embodiment of this application. In practical applications, it may include More than one network device, more than one terminal device. The cell search system shown in FIG. 1 is described by taking a terminal device (terminal device 100) and a network device (network device 200) as examples. The terminal device 100 can determine the CSG whitelist, and the terminal device 100 can also receive signaling sent by the network device 200. For example, the network device 200 can send a reconfiguration message to the terminal device 100. The reconfiguration message can carry the configuration of proximityIndicationEutra, and the configuration can be used The terminal device 100 is then instructed to start a cell search.

Wherein, the so-called terminal device may be a device with a wireless transceiver function. It can also be called terminal, user equipment (UE), mobile station (mobile station, MS), mobile terminal (mobile terminal, MT), access terminal equipment, IoT terminal equipment, vehicle-mounted terminal equipment , industrial control terminal equipment, UE unit, UE station, mobile station, remote station, remote terminal equipment, mobile equipment, UE terminal equipment, wireless communication equipment, UE proxy or UE device, etc. Terminal equipment can be fixed or mobile. It should be noted that the terminal device may support at least one wireless communication technology, such as wideband code division multiple access (wideband code division multiple access, WCDMA). For example, the terminal device may be a mobile phone (mobile phone), a tablet computer (pad), a desktop computer, a notebook computer, an all-in-one computer, a vehicle terminal, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal Equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grid, transportation Wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, cellular phones, cordless phones, session initiation protocol (SIP) phones, Wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, wearable devices, future mobile A terminal device in a communication network or a terminal device in a public mobile land network (public land mobile network, PLMN) that will evolve in the future, etc. In some embodiments of the present application, the terminal device may also be a device having a transceiver function, such as a chip module. Wherein, the chip module may include a chip, and may also include other discrete devices. The embodiment of the present application does not limit the specific technology and specific device form adopted by the terminal device.

The so-called network device may refer to an entity on the network side for transmitting or receiving signals. A network device may be a device used to communicate with mobile devices. The network device can be an access point (AP) in a wireless local area network (WLAN), a global system for mobile communications (GSM) or a code division multiple access (CDMA) ), or a base station (NodeB, NB) in wideband code division multiple access (WCDMA), or a relay station or an access point or an integration of access and backhaul (integrated access and backhaul, IAB), or vehicle equipment, wearable equipment, and network equipment in the future evolution of the public land mobile network (public land mobile network, PLMN) network. In some embodiments, the network device may also be a device that provides a wireless communication function for the terminal device, such as a chip module. Exemplarily, the chip module may include a chip, and may also include other discrete devices. The embodiment of the present application does not limit the specific technology and specific device form adopted by the network device.

At present, a terminal device (such as terminal device 100) may be a type of UE. In the case where it is determined that at least one CSG cell is included in the CSG whitelist, that is, the CSG whitelist cell is not empty (the number of CSG cells included in the CSG whitelist When the number is greater than 0), the cell autonomous search is started, and the terminal device (such as the terminal device 100) will periodically search for neighboring cells and read the system information of the neighboring cells, thereby increasing the underlying measurement and system message reading process , leading to an increase in power consumption of the terminal device (such as the terminal device 100), and reducing the battery life of the terminal device (such as the terminal device 100).

In this embodiment of the present application, a terminal device (such as terminal device 100) may determine a CSG whitelist, which includes CSG cell information that the terminal device (such as terminal device 100) can access, and the terminal device (such as terminal device 100) ) The accessible CSG cell information includes cell information of N CSG cells, where N is an integer greater than or equal to 0. Furthermore, when N is a preset value and N CSG cells match the serving cell of the UE, the terminal device (such as the terminal device 100) can stop or not start the cell autonomous search, thereby reducing the number of neighbor cell searches and reading of neighbor cells. The number of system messages in the area reduces the measurement of the bottom layer and the reading process of system messages, thereby reducing the power consumption of the terminal device (such as the terminal device 100) and improving the battery life of the terminal device (such as the terminal device 100).

Based on the above cell search system, an embodiment of the present application provides a cell search method. The cell search method in the embodiment of the present application may be implemented by the terminal device 100 in the cell search system shown in FIG. chip implementation. For the cell search method involved in the cell search system shown in FIG. 1 , reference may be made to FIG. 2 , which is a schematic flowchart of a cell search method provided in an embodiment of the present application. The cell search method may include the following steps S201-S202. In the embodiment of this application, S may represent a step (Step):

S201. Determine the CSG whitelist.

In this embodiment of the present application, the CSG whitelist includes information of CSG cells accessible to the UE, and the information of CSG cells accessible to the UE includes cell information of N CSG cells, where N is an integer greater than or equal to 0. That is, the CSG whitelist is a list of CSG cells that the UE is allowed to access, and the cell information of the CSG cells in the CSG whitelist includes CSG IDs and corresponding PLMN IDs. When the CSG ID of the CSG cell searched by the UE and its corresponding PLMN ID match the CSG ID of the CSG cell and its corresponding PLMN ID stored in the CSG whitelist, the UE can successfully camp on the CSG cell.

It should be noted that the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP) proposes in the Release8 version that the UE uses the concept of the CSG to perform access control. A CSG cell refers to a group of subscribers who are allowed to access one or more specific cells. Here, one or more cells are restricted and conditional when accessing users, while ordinary cells can allow all legal licenses of operators. Subscriber (and roaming user) access. Therefore, the reselection of CSG cells and the proximity report (proximity report) rely on the autonomous search function of the UE, and the UE usually comes when the CSG cells included in the CSG whitelist are not 0 (that is, the CSG cells are greater than or equal to 1). The CSG cell autonomous search is performed without distinguishing the scenarios, so that some scenarios that should not enable the cell autonomous search are enabled to enable the cell autonomous search, thereby increasing the underlying measurement and system message reading process, and at the same time increasing the power consumption of the UE. Reduce UE endurance.

In a possible implementation manner, determining the CSG whitelist by the UE may be that the UE updates the CSG whitelist. Specifically, the UE may receive a CSG cell selection instruction, such as the above-mentioned user-input manual network selection and camping instruction, the CSG cell selection instruction indicates the first CSG cell, where the first CSG cell is not in the CSG whitelist, and the UE When the first CSG cell is found, register with the first CSG cell, and if the UE successfully registers with the first CSG cell, the cell information of the first CSG cell may be added to the CSG whitelist. At this time, the user initiates manual CSG network selection through the UE, and successfully registers to a CSG cell, such as the first CSG cell mentioned above, and adds the CSG cell to the CSG whitelist according to the provisions of the 23.122 protocol. At this time, the UE can determine the CSG whitelist , the cell information of the successfully registered CSG cell is about to be added to the CSG whitelist, for example, the CSG ID of the first CSG cell and its corresponding PLMN ID are added to the CSG whitelist.

In another possible implementation, when the CSG whitelist includes cell information of a CSG cell, when the UE fails to register with the CSG cell, the UE may transfer the cell information of the CSG cell from the CSG removed from the whitelist. For example, the CSG whitelist includes cell information of the second CSG cell, such as the CSG ID of the second CSG cell and its corresponding PLMN ID. In the case that the UE cannot successfully register with the second CSG cell, at this time, the UE may update the CSG whitelist, for example, may delete the cell information of the second CSG cell from the CSG whitelist. Exemplarily, when the UE is performing NAS layer procedures for the second CSG cell, such as attaching (ATTACH) and tracking area update (Traking Area Update, TAU), the CSG cell may indicate to the UE the reason for rejecting UE access, such as rejecting Reason #25, and then the UE determines the CSG whitelist, that is, the cell information of the second CSG cell (that is, the CSG ID of the second CSG cell and its corresponding PLMNID) can be deleted from the CSG whitelist.

In yet another possible implementation manner, when the UE is started, it may obtain the CSG whitelist from a Subscriber Identity Module (SIM), for example, the UE's SIM card stores a CSG whitelist, and the CSG whitelist may include cell information of N CSG cells, where N is an integer greater than or equal to 0. It can be understood that, each time the UE starts up, it can read the CSG whitelist from the SIM card, so as to determine the CSG whitelist, and can also update the CSG whitelist.

It should be noted that the CSG whitelist is composed of the allowed list and the operator list, wherein the CSG cells in the allowed list can be added and modified, and the CSG cells in the allowed list can be that after the UE successfully registers to a CSG cell, the UE will The CSG cell that is not originally in the allowed list is added to the allowed list, for example, the first CSG cell is added to the allowed list as described above. It is also possible to delete an existing CSG cell from the allowed list after the UE fails to register with a certain CSG cell, for example, deleting the existing second CSG cell from the allowed list as described above. Wherein, the operator list may be a white list written by the operator, and CSG cells in the operator list are not added or deleted. The CSG whitelist is stored in the SIM card of the UE, and is read and modified by the NAS layer. Therefore, the UE can obtain the CSG whitelist from the SIM card when starting up.

Further, the UE can determine whether the UE can stop or not start the autonomous cell search according to the cell information of the N UE-accessible CSG cells included in the CSG whitelist and whether they match the UE's serving cell, so as to reduce the UE's power consumption.

S202. When the value of N is a preset value, and the N CSG cells match the serving cell of the UE, stop or not start cell search.

In this embodiment of the present application, the preset value may be a value for which the UE does not need to perform autonomous CSG cell search. The operation of measuring and reading the system information of the neighbor cell. The serving cell of the UE refers to the cell where the UE resides, where the match between the N CSG cells and the serving cell of the UE means that the N CSG cells are the same as the serving cell of the UE. For example, when the value of N is a preset value, that is, 1, and the CSG cell included in the CSG whitelist is the same as the serving cell of the UE, that is, the CSG cell matches the serving cell of the UE, at this time, the UE Autonomous cell search can be stopped or not started.

At present, as long as there is a CSG cell in the CSG whitelist in the UE, the cell autonomous search will start. However, there is a scenario where one CSG cell is included in the CSG whitelist. When one CSG cell is included in the CSG whitelist, the UE does not necessarily need to Enable autonomous cell search. For example, if the cell in the CSG whitelist matches the serving cell of the UE, the UE will not initiate a reselection operation from the CSG cell to another CSG cell, and the UE can stop or not start the cell autonomous search. Therefore, the power consumption of the UE is effectively reduced. It can be understood that the total number of CSG cells included in the CSG whitelist is the sum of the CSG cells included in the allowed list and the operator list, and when the sum of the CSG cells included in the allowed list and the operator list is N, The CSG whitelist includes N CSG cells.

In a possible implementation, when the value of N among the N CSG cells included in the CSG whitelist is a preset value, and the N CSG cells match the serving cell of the UE, the UE stops or does not The autonomous cell search is started. At this time, the UE can be in an idle state or a connected state. If the UE is in the idle state (IDL state) or connected state, only one CSG cell is included in the CSG whitelist, and the CSG cell is the same as the serving cell of the UE, the UE does not need to perform cell autonomous search, that is Stop or not start cell autonomous search to reduce UE power consumption.

Among them, when the UE is in the idle state (IDL), only one CSG cell is included in the CSG whitelist, and the CSG cell is the same as the serving cell of the UE. For the reselection of CSG cells in the white list, that is, the UE does not need to perform autonomous cell search, so stopping or not starting the autonomous cell search at this time can reduce the power consumption of the UE. When the UE is in the connected state (DCH), it may receive a reconfiguration message sent by a network device (such as a base station). The reconfiguration message carries the proximityIndicationEutra configuration (proximity indication configuration), which is used to indicate that the UE needs to perform proximity reporting. (proximity reporting) to perform cell handover. The UE's proximity reporting depends on the UE's ability to perform cell autonomous search, that is, the reconfiguration message is used to instruct the UE to start cell autonomous search. At this time, if the value of N is 1, and N CSG cells match the serving cell of the UE, including the case where N CSG cells are the same as the serving cell of the UE above, the UE may not perform (stop or not start) cell autonomous search, In order to properly reduce the power consumption of the UE.

Please also refer to FIG. 3 . FIG. 3 is a schematic flowchart of a specific implementation of a cell search method provided in an embodiment of the present application. As shown in FIG. 3, S301, the NAS updates the CSG whitelist to the RRC. First, the NAS layer of the UE can determine the CSG whitelist and transmit it to the RRC layer. Specifically, the NAS layer of the UE can obtain the CSG whitelist in the SIM card when the UE starts up. The CSG whitelist consists of the allowed list and the operator list composition. When the allowed list in the CSG whitelist does not include a certain CSG cell, and the UE is registered to the CSG cell, the UE can add the cell information of the CSG cell to the allowed list to update the CSG whitelist. The UE can also be If the allowed list in the CSG whitelist includes a certain CSG cell, and the UE fails to register with the CSG cell, delete the cell information of the CSG cell from the allowed list to update the CSG whitelist.

S302. The UE judges that the CSG whitelist includes information on N CSG cells, and whether N is a preset value. Wherein, the preset value may be 1, and the UE may first determine whether 1 cell is included in the CSG whitelist. It is because if N is not a preset value, for example, N is greater than 1, N is 2, 3, etc., the UE must start the cell autonomous search, and no subsequent judgment is required. For example, if N is 0, the UE must stop or not start autonomous cell search. Moreover, in the process of further judging whether the N CSG cells match the serving cell of the UE, if N is not a preset value, it is necessary to sequentially judge the N CSG cells and the serving cell of the UE, if N is a preset value , such as 1, the UE only needs to judge once.

Wherein, the CSG whitelist is composed of the allowed list and the operator list, and if the sum of the CSG cells included in the allowed list and the operator list is N, then the CSG whitelist includes N CSG cells. Exemplarily, when only one CSG cell is included in the CSG whitelist, the following three cases may be included: The first case is that the operator list of the CSG whitelist includes one CSG cell. The second case is that neither the operator list nor the allowed list includes a CSG cell, and the UE adds a CSG cell to the allowed list. The third case is that the operator list does not include a CSG cell, and the allowed list includes 2 CSG cells, and the UE deletes 1 CSG cell from the allowed list.

S303. The CSG whitelist includes information on N CSG cells. If N is a preset value, the UE judges whether the N CSG cells match the serving cell of the UE. Wherein, when N is a preset value, for example, when the value of N is 1, it can be judged whether the CSG cell information included in the CSG whitelist is the cell information of the serving cell of the UE, that is, the CSG whitelist includes Whether the CSG cell of the UE is the serving cell of the UE. When the UE determines that the CSG cells included in the CSG whitelist are the serving cells of the UE, the UE may stop or not start autonomous cell search.

S304. The UE judges whether the UE receives a reconfiguration message from the network device when the UE is in the connected state (DCH). Wherein, when the UE is in the connected state, if it judges that N in the CSG whitelist is a preset value, and N CSG cells match the serving cell of the UE, the UE stops or does not start the cell autonomous search. At this time, the UE may receive a reconfiguration message sent by a network device (such as a base station). The reconfiguration message may carry the above-mentioned proximityIndicationEutra configuration, which is used to instruct the UE to perform autonomous cell search. In this case, the UE may still stop or Do not start cell autonomous search. It should be noted that, when the UE does not receive the reconfiguration message, the UE also stops or does not start the autonomous cell search.

S305. The UE stops or does not start cell search. When the UE is in the idle state, when N is a preset value, and the N CSG cells match the serving cell of the above-mentioned UE, including the case where the above-mentioned N CSG cells are the same as the serving cell of the above-mentioned UE, the UE stops or does not start the cell autonomous search . When the UE is in the connected state, the UE receives a reconfiguration message from the network device. The reconfiguration message is used to instruct the UE to start cell autonomous search. When N is a preset value, N CSG cells match the serving cell of the above UE, including In a case where the above N CSG cells are the same as the serving cell of the UE, the UE stops or does not start autonomous cell search.

In the embodiment of the present application, the UE determines the cell information of N CSG cells that the UE can access included in the CSG whitelist, and N in the CSG whitelist is determined as a preset value, and the N CSG cells are the same as those of the UE. When the accessed serving cell matches, the UE stops or does not start the cell autonomous search, so as to reduce the number of times of searching and reading the system information of the neighboring cell while ensuring the communication quality, and reduce the measurement of the bottom layer and the number of system messages. Read the process, thereby reducing the power consumption of the UE and improving the battery life of the UE.

Please refer to FIG. 4 . FIG. 4 is a schematic structural diagram of a cell search device provided in an embodiment of the present application. As shown in FIG. 4 , the cell search device 400 includes a determining unit 401 and a stopping unit 402 . The cell search apparatus 400 may execute the relevant steps of the terminal device in the foregoing method embodiments. in:

The determination unit 401 is configured to determine a closed subscriber group CSG whitelist, the CSG whitelist includes information about CSG cells accessible to the user equipment UE; the information about CSG cells accessible to the UE includes cell information about N CSG cells, and N is an integer greater than or equal to 0;

The stopping unit 402 is configured to stop or not start the cell search when the value of N is a preset value and the above N CSG cells match the serving cell of the UE.

In a possible implementation manner, the above-mentioned determining unit 401 is configured to determine a closed subscriber group CSG whitelist, and is specifically configured to:

receiving a CSG cell selection instruction, where the CSG cell selection instruction indicates the first CSG cell;

When the first CSG cell is found, register with the first CSG cell;

In the case of successfully registering with the first CSG cell, add the cell information of the first CSG cell to the CSG whitelist.

In a possible implementation manner, the above-mentioned CSG whitelist includes cell information of the second CSG cell; the above-mentioned determining unit 401 is configured to determine the closed subscriber group CSG whitelist, specifically for:

If the registration to the second CSG cell is unsuccessful, the cell information of the second CSG cell is deleted from the CSG whitelist.

In a possible implementation manner, the above-mentioned determining unit 401 is configured to determine a closed subscriber group CSG whitelist, and is specifically configured to:

Obtain the above CSG whitelist from the user identification card.

In a possible implementation manner, the above stop unit 402 is configured to stop or not start the cell search, and is specifically configured to:

The aforementioned UE is in an idle state or a connected state, and stops or does not start cell search.

In a possible implementation manner, the above stop unit 402 is configured to stop or not start the cell search, and is specifically configured to:

After receiving the reconfiguration message from the network device, stop or not start the cell search; the above reconfiguration message is used to instruct to start the cell search.

In a possible implementation manner, the value of N is 1, and the matching of the N CSG cells with the serving cell of the UE includes that the N CSG cells are the same as the serving cell of the UE.

Specifically, in this case, for the operations performed by the determining unit 401 and the stopping unit 402, reference may be made to the introduction about the terminal device in the above embodiments corresponding to FIG. 2 to FIG. 3 .

The cell search apparatus 400 may also be used to implement other functions of the terminal device in the embodiments corresponding to FIG. 2 to FIG. 3 , which will not be repeated here. Based on the same inventive concept, the problem-solving principle and beneficial effect of the cell search device 400 provided in the embodiment of the present application are similar to the principle and beneficial effect of the terminal device in the method embodiment of the present application. Please refer to the principle and beneficial effect of the implementation of the method The effect, for the sake of brevity, will not be repeated here.

According to the embodiment of the present application, each unit in the cell search device shown in FIG. 4 can be respectively or all combined into one or several other units to form, or one (some) units can be further divided into Multiple functionally smaller units can achieve the same operation without affecting the realization of the technical effects of the embodiments of the present application. The above-mentioned units are divided based on logical functions. In practical applications, the functions of one unit may also be realized by multiple units, or the functions of multiple units may be realized by one unit. In other embodiments of the present application, the cell search apparatus 400 may also include other units, and in practical applications, these functions may also be assisted by other units, and may be implemented by cooperation of multiple units.

The above-mentioned cell search device may be, for example, a chip or a chip module. Regarding each device described in the above embodiments, each module included in the product may be a software module or a hardware module, or may be partly a software module and partly a hardware module. For example, for each device or product applied to or integrated in a chip, each module contained therein may be realized by hardware such as a circuit, or at least some modules may be realized by a software program, and the software program runs inside the chip. For the integrated processor, the remaining (if any) modules can be realized by means of hardware such as circuits; for each device or product applied to or integrated in a chip module, each module contained in it can be realized by means of hardware such as circuits , different modules can be located in the same component of the chip module (such as chips, circuit modules, etc.) or in different components, or at least some modules can be implemented in the form of software programs, which run on the processing integrated in the chip module device, the remaining (if any) modules can be realized by means of hardware such as circuits; for each device or product applied to or integrated in the terminal, each module contained in it can be realized by means of hardware such as circuits, and different modules can be Located in the same component (for example, chip, circuit module, etc.) or different components in the terminal device, or at least some of the modules can be implemented in the form of a software program, the software program runs on the processor integrated in the terminal, and the rest (if any) ) Some modules can be realized by hardware such as circuits.

Please refer to FIG. 5 . FIG. 5 is another cell search device provided by an embodiment of the present application. It can be used to realize the function of the cell search device in the above method embodiments. The cell search apparatus 500 may include a processor 501 and a transceiver 502 . Optionally, the cell search apparatus 500 may also include a memory 503 . Wherein, the processor 501, the transceiver 502 and the memory 503 may be connected through a bus 504 or in other ways. The bus is represented by a thick line in FIG. 5 , and the connection manners between other components are only for schematic illustration and are not limited thereto. The bus can be divided into address bus, data bus, control bus and so on. For ease of representation, only one thick line is used in FIG. 5 , but it does not mean that there is only one bus or one type of bus.

The coupling in the embodiments of the present application is an indirect coupling or a communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules. The specific connection medium between the processor 501 and the memory 503 is not limited in this embodiment of the present application.

The memory 503 may include read-only memory and random-access memory, and provides instructions and data to the processor 501 . A portion of memory 503 may also include non-volatile random access memory.

The processor 501 can be a central processing unit (Central Processing Unit, CPU), and the processor 501 can also be other general-purpose processors, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC ), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor, and optionally, the processor 501 may also be any conventional processor. Wherein: the memory 503 is used for storing program instructions.

The processor 501 is configured to invoke program instructions stored in the memory 503 for:

Determining a closed subscriber group CSG whitelist, where the CSG whitelist includes information about CSG cells accessible to the user equipment UE;

The CSG cell information accessible to the UE includes cell information of N CSG cells, where N is an integer greater than or equal to 0;

When the value of N is a preset value, and the N CSG cells match the serving cell of the UE, the cell search is stopped or not started.

In a possible implementation manner, the processor 501 is configured to determine the closed subscriber group CSG whitelist, and is specifically configured to call the program instructions stored in the memory 503 to perform the following steps:

receiving a CSG cell selection instruction, where the CSG cell selection instruction indicates the first CSG cell;

When the first CSG cell is found, register with the first CSG cell;

In the case of successfully registering with the first CSG cell, add the cell information of the first CSG cell to the CSG whitelist.

In a possible implementation, the CSG whitelist includes cell information of the second CSG cell; the processor 501 is configured to determine the closed subscriber group CSG whitelist, and is specifically configured to invoke program instructions stored in the memory 503 to perform the following steps :

If the registration to the second CSG cell is unsuccessful, the cell information of the second CSG cell is deleted from the CSG whitelist.

In a possible implementation manner, the processor 501 is configured to determine the closed subscriber group CSG whitelist, and is specifically configured to call the program instructions stored in the memory 503 to perform the following steps:

Obtain the above CSG whitelist from the user identification card.

In a possible implementation manner, the processor 501 is configured to stop or not start the cell search, and is specifically configured to invoke program instructions stored in the memory 503 to perform the following steps:

The aforementioned UE is in an idle state or a connected state, and stops or does not start cell search.

In a possible implementation manner, the processor 501 is configured to stop or not start the cell search, and is specifically configured to invoke program instructions stored in the memory 503 to perform the following steps:

After receiving the reconfiguration message from the network device, stop or not start the cell search; the above reconfiguration message is used to instruct to start the cell search.

In a possible implementation manner, the value of N is 1, and the matching of the N CSG cells with the serving cell of the UE includes that the N CSG cells are the same as the serving cell of the UE.

In the embodiment of the present application, it can be implemented by running on a general-purpose computing device such as a computer that includes processing elements such as a central processing unit (CPU), a random access storage medium (RAM), and a read-only storage medium (ROM) and storage elements. A computer program (including program code) that executes the steps involved in the corresponding methods shown in FIGS. 2-3 , and implements the methods provided in the embodiments of the present application. The computer program can be recorded on, for example, a computer-readable recording medium, loaded into the above-mentioned computing device via the computer-readable recording medium, and executed therein.

Based on the same inventive concept, the problem-solving principle and beneficial effect of the cell search device provided in the embodiment of the present application are similar to the problem-solving principle and beneficial effect of the cell search device in the method embodiment of the present application. Please refer to the principle and beneficial effect of the implementation of the method The effect, for the sake of brevity, will not be repeated here.

The foregoing cell search device (such as the cell search device 400 and the cell search device 500 ) may be, for example, a chip or a chip module.

The embodiment of the present application further provides a chip, which can execute the relevant steps of the terminal device in the foregoing method embodiments. This chip is used for:

Determine the closed user group CSG white list, the CSG white list includes the CSG cell information that the user equipment UE can access; the CSG cell information that the UE can access includes the cell information of N CSG cells, and N is greater than or equal to 0 Integer; when the value of N is a preset value, and the N CSG cells match the serving cell of the UE, stop or not start the cell search.

In a possible implementation manner, the chip is used to determine the closed subscriber group CSG whitelist, and specifically may be used to: receive a CSG cell selection instruction, the CSG cell selection instruction indicates the first CSG cell; In the case of a cell, register with the above-mentioned first CSG cell; if successfully registered with the above-mentioned first CSG cell, add the cell information of the above-mentioned first CSG cell to the above-mentioned CSG white list.

In a possible implementation manner, the CSG whitelist includes cell information of the second CSG cell; the chip is used to determine the closed subscriber group CSG whitelist, and specifically can be used for:

If the registration to the second CSG cell is unsuccessful, the cell information of the second CSG cell is deleted from the CSG whitelist.

In a possible implementation manner, the chip is used to determine a closed subscriber group CSG whitelist, which can be specifically used for:

Obtain the above CSG whitelist from the user identification card.

In a possible implementation manner, the chip is used to stop or not start the cell search, and specifically can be used for:

The aforementioned UE is in an idle state or a connected state, and stops or does not start cell search.

In a possible implementation manner, the chip is used to stop or not start the cell search, and specifically can be used for:

After receiving the reconfiguration message from the network device, stop or not start the cell search; the above reconfiguration message is used to instruct to start the cell search.

In a possible implementation manner, the value of N is 1, and the matching of the N CSG cells with the serving cell of the UE includes that the N CSG cells are the same as the serving cell of the UE.

Specifically, in this case, for the operations performed by the chip, reference may be made to the introduction of the terminal device in the above embodiments corresponding to FIG. 2 to FIG. 3 .

In a possible implementation manner, the above-mentioned chip includes at least one processor, at least one first memory, and at least one second memory; wherein, the aforementioned at least one first memory and the aforementioned at least one processor are interconnected A computer program is stored in the memory, the computer program includes program instructions, and the processor is used to execute the program instructions to implement the cell search method in the embodiment of the present application; the aforementioned at least one second memory and the aforementioned at least one processor are interconnected by a line, The aforementioned second memory stores the data that needs to be stored in the aforementioned method embodiments.

For each device or product applied to or integrated in the chip, each module contained therein may be implemented by means of hardware such as circuits, or at least some of the modules may be implemented by means of software programs, which run on the internal integrated components of the chip. The processor and the remaining (if any) modules can be realized by hardware such as circuits.

Based on the same inventive concept, the problem-solving principle and beneficial effect of the chip provided in the embodiment of the application are similar to the principle and beneficial effect of the terminal device device in the method embodiment of the application. Please refer to the principle and beneficial effect of the implementation of the method. For the sake of brevity, no more details are given here.

Please refer to FIG. 6 . FIG. 6 is a schematic structural diagram of a module device provided by an embodiment of the present application. The module device 600 can execute the relevant steps of the terminal device in the foregoing method embodiments, and the module device 600 includes: a communication module 601 , a power supply module 602 , a storage module 603 and a chip module 604 .

Among them, the above-mentioned communication module 601 is used for internal communication of the module equipment, or for communication between the module equipment and external equipment; the above-mentioned power supply module 602 is used for providing electric energy for the module equipment; the above-mentioned storage module 603 is used for storing Data and instructions; the above-mentioned chip module 604 is used to: determine the closed subscriber group CSG whitelist, the above-mentioned CSG whitelist includes the CSG cell information that the user equipment UE can access; the above-mentioned CSG cell information that the UE can access includes N CSG The cell information of the cell, N is an integer greater than or equal to 0; when the value of N is a preset value, and the above N CSG cells match the serving cell of the UE, stop or not start the cell search.

In a possible implementation manner, the above-mentioned chip module 604 is used to determine the closed subscriber group CSG whitelist, and is specifically used to: receive a CSG cell selection instruction, the above-mentioned CSG cell selection instruction indicates the first CSG cell; In the case of the first CSG cell, register with the first CSG cell; in the case of successfully registering with the first CSG cell, add the cell information of the first CSG cell to the CSG whitelist.

In a possible implementation manner, the above-mentioned CSG whitelist includes cell information of the second CSG cell; the above-mentioned chip module 604 is configured to determine the closed subscriber group CSG whitelist, and is specifically used to: In the case of a cell, the cell information of the second CSG cell is deleted from the CSG whitelist.

In a possible implementation manner, the above-mentioned chip module 604 is configured to determine the closed subscriber group CSG whitelist, and is specifically configured to: obtain the above-mentioned CSG whitelist from the user identification card.

In a possible implementation manner, the aforementioned chip module 604 is configured to stop or not start the cell search, and is specifically configured to stop or not start the cell search when the aforementioned UE is in an idle state or a connected state.

In a possible implementation manner, the above-mentioned chip module 604 is used to stop or not start the cell search, and is specifically used for:

After receiving the reconfiguration message from the network device, stop or not start the cell search; the above reconfiguration message is used to instruct to start the cell search.

In a possible implementation manner, the value of N is 1, and the matching of the N CSG cells with the serving cell of the UE includes that the N CSG cells are the same as the serving cell of the UE.

For each device or product applied to or integrated in a chip module, each module contained therein may be realized by hardware such as a circuit, and different modules may be located in the same component of the chip module (such as a chip, a circuit module, etc.) or Among the different components, or at least some of the modules can be realized by means of a software program, the software program runs on the processor integrated in the chip module, and the remaining (if any) parts of the modules can be realized by means of hardware such as circuits.

The embodiment of the present application also provides a computer-readable storage medium. A computer program is stored in the computer-readable storage medium. The computer program includes one or more program instructions, and one or more program instructions are suitable for being loaded and executed by a terminal device. The method provided by the method embodiment.

The embodiment of the present application also provides a computer program product including a computer program or an instruction. When the computer program or instruction is run on a computer, the computer is made to execute the method provided by the above method embodiment.

The embodiment of the present application also provides a cell search system, which may include the terminal device (terminal device 100 ) and network device (network device 200 ) in FIG. 1 .

Regarding each device described in the above embodiments, each module/unit contained in the product may be a software module/unit, or a hardware module/unit, or may be partly a software module/unit and partly a hardware module/unit. . For example, for each device or product applied to or integrated in a chip, each module/unit contained therein may be realized by hardware such as a circuit, or at least some modules/units may be realized by a software program, and the software program Running on the integrated processor inside the chip, the remaining (if any) modules/units can be realized by means of hardware such as circuits; They are all realized by means of hardware such as circuits, and different modules/units can be located in the same component (such as chips, circuit modules, etc.) or different components of the chip module, or at least some modules/units can be realized by means of software programs, The software program runs on the processor integrated in the chip module, and the remaining (if any) modules/units can be realized by hardware such as circuits; Each unit/unit can be realized by means of hardware such as a circuit, and different modules/units can be located in the same component (such as a chip, a circuit module, etc.) or different components in the terminal, or at least some modules/units can be implemented in the form of a software program Realization, the software program runs on the processor integrated in the terminal, and the remaining (if any) modules/units can be implemented by means of hardware such as circuits.

It should be noted that, for the sake of simple description, all the aforementioned method embodiments are expressed as a series of action combinations, but those skilled in the art should know that the present application is not limited by the described action sequence. Because according to the application, certain steps may be performed in other order or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification belong to preferred embodiments, and the actions and modules involved are not necessarily required by this application.

The steps in the methods of the embodiments of the present application can be adjusted, combined and deleted according to actual needs.

The modules in the device of the embodiment of the present application can be combined, divided and deleted according to actual needs.

Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above-mentioned embodiments can be completed by program instructions and related hardware, and the program instructions can be stored in a computer-readable storage medium, and the computer-readable storage medium Can include: flash drive, ROM, RAM, magnetic disk or optical disk, etc.

What is disclosed above is only an embodiment of the present application, and is only a part of the embodiments of the present application, and cannot be used to limit the scope of rights of the present application.

Claims (12)

1. A cell search method, characterized in that, comprising: Determining a closed subscriber group CSG whitelist, where the CSG whitelist includes information about CSG cells accessible to the user equipment UE; The CSG cell information accessible to the UE includes cell information of N CSG cells, where N is an integer greater than or equal to 0; When the value of N is a preset value and the N CSG cells match the serving cell of the UE, cell search is stopped or not started. 2. The method according to claim 1, wherein said determining a CSG whitelist comprises: receiving a CSG cell selection instruction, the CSG cell selection instruction indicating the first CSG cell; If the first CSG cell is found, register with the first CSG cell; In a case of successfully registering with the first CSG cell, adding cell information of the first CSG cell to the CSG whitelist. 3. The method according to claim 1, wherein the CSG whitelist includes cell information of a second CSG cell; The determination of the closed subscriber group CSG whitelist includes: If the registration to the second CSG cell is unsuccessful, the cell information of the second CSG cell is deleted from the CSG whitelist. 4. The method according to claim 1, wherein said determining a CSG whitelist comprises: Obtain the CSG whitelist from the user identification card. 5. The method according to any one of claims 1-4, wherein the stopping or not starting the cell search comprises: The UE is in an idle state or a connected state, and stops or does not start cell search. 6. The method according to any one of claims 1-4, wherein the stopping or not starting the cell search comprises: After receiving a reconfiguration message from the network device, the cell search is stopped or not started; the reconfiguration message is used to indicate to start the cell search. 7. The method according to any one of claims 1-4, wherein the value of N is 1, and the matching of the N CSG cells with the serving cell of the UE includes the matching of the N CSG cells with the The serving cell of the UE is the same. 8. A cell search device, characterized in that, comprising: A determining unit, configured to determine a Closed Subscriber Group CSG whitelist, where the CSG whitelist includes information about CSG cells accessible to the user equipment UE; The CSG cell information accessible to the UE includes cell information of N CSG cells, where N is an integer greater than or equal to 0; The stopping unit is configured to stop or not start the cell search when the value of N is a preset value and the N CSG cells match the serving cell of the UE. 9. A cell search device, comprising a processor; The processor is configured to execute the method according to any one of claims 1-7. 10. A chip, characterized in that it includes a memory and a processor, a computer program is stored in the memory, the computer program includes program instructions, and the processor is used to execute the program instructions to implement claims 1-7. any one of the methods described. 11. A chip module, characterized in that the chip module includes a communication interface and a chip, wherein: the communication interface is used for internal communication of the chip module, or for communication between the chip module and external equipment Communication; the chip is used to execute the method according to any one of claims 1-7. 12. A computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, the computer program includes program instructions, and when the program instructions are executed, the Any one of the described methods is carried out.

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