CN110022594A

CN110022594A - A kind of cell selecting method, terminal and the network equipment

Info

Publication number: CN110022594A
Application number: CN201810020325.4A
Authority: CN
Inventors: 郑倩; 马玥; 杨晓东
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-01-09
Filing date: 2018-01-09
Publication date: 2019-07-16
Also published as: WO2019137337A1

Abstract

The embodiment of the invention provides a kind of cell selecting method, terminal and the network equipments, are related to field of communication technology, the cell selection of the terminal to realize inactive state.This method comprises: receiving the first instruction information that the network equipment is sent, which, which is used to indicate, allows or the terminal of inactive state is forbidden to select first community；According to the first instruction information, the candidate cell of the terminal of inactive state is determined, which is cell some or all of in first community.

Description

Cell selection method, terminal and network equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a cell selection method, a terminal, and a network device.

Background

Currently, the 5G NR system specifically includes 3 connection states: a Radio Resource Control (RRC) IDLE (RRC IDLE) state, an RRC CONNECTED (RRC CONNECTED) state, and an RRC active (RRC active) state, and the terminal may transition between the three states. For the non-RRC active state, since only a part of LTE system cells (cells capable of being connected to the 5G core network) and all 5G NR system cells support the non-active state signaling configuration and related signaling procedures, when the terminal in the non-active state needs to be connected to the cells supporting the non-active state, the cell supporting the non-active state needs to be selected from the cells to which the terminal can be connected.

However, when a terminal in an inactive state needs to connect to a cell supporting the inactive state, there is currently no cell selection or reselection scheme for the terminal in the inactive state.

Disclosure of Invention

The embodiment of the invention provides a cell selection method, a terminal and network equipment, which are used for realizing the cell selection of a terminal in an inactive state.

In order to solve the technical problem, the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides a cell selection method, including:

receiving first indication information sent by network equipment, wherein the first indication information is used for indicating that a terminal in an inactive state is allowed or forbidden to select a first cell;

and determining a candidate cell of the terminal in the inactive state according to the first indication information, wherein the candidate cell is a part of or all cells in the first cell.

In a second aspect, an embodiment of the present invention provides a cell selection method, which is applied to a network device, and the method includes:

sending first indication information to a terminal;

the first indication information is used for indicating that the terminal in the inactive state is allowed or forbidden to select the first cell, and the first indication information is used for indicating that the terminal determines a candidate cell of the terminal in the inactive state according to the first indication information, wherein the candidate cell is a part of or all cells in the first cell.

In a third aspect, an embodiment of the present invention provides a terminal, including:

a receiving module, configured to receive first indication information sent by a network device, where the first indication information is used to indicate that an inactive terminal is allowed or prohibited to select a first cell;

a determining module, configured to determine, according to the first indication information received by the receiving module, a candidate cell of the terminal in the inactive state, where the candidate cell is a part or all of the first cells.

In a fourth aspect, an embodiment of the present invention provides a network device, including:

the sending module is used for sending first indication information to the terminal;

In a fifth aspect, an embodiment of the present invention provides a terminal, including a processor, a memory, and a computer program stored in the memory and operable on the processor, where the computer program, when executed by the processor, implements the steps of the cell selection method according to the first aspect.

In a sixth aspect, an embodiment of the present invention provides a network device, including a processor, a memory, and a computer program stored on the memory and operable on the processor, where the computer program, when executed by the processor, implements the steps of the cell selection method according to the second aspect.

In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the above-mentioned cell selection method are implemented.

In the embodiment of the present invention, network equipment sends first indication information to an inactive terminal, where the first indication information is used to indicate that the inactive terminal is allowed or prohibited to select a first cell, so that when the inactive terminal selects and reselects a cell, the candidate cell of the inactive cell can be determined according to the indication of the first indication information, and the inactive terminal can select a cell that supports an inactive state and/or that UE AScontext is valid as far as possible.

Drawings

Fig. 1 is a schematic diagram of a possible structure of a communication system according to an embodiment of the present invention;

fig. 2 is a first flowchart illustrating a cell selection method according to an embodiment of the present invention;

fig. 3 is a second flowchart illustrating a cell selection method according to an embodiment of the present invention;

fig. 4 is a third flowchart illustrating a cell selection method according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a network device according to an embodiment of the present invention;

fig. 7 is a schematic diagram of a hardware structure of a terminal according to an embodiment of the present invention;

fig. 8 is a schematic diagram of a hardware structure of a network device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship; in the formula, the character "/" indicates that the preceding and following related objects are in a relationship of "division". The term "plurality" herein means two or more, unless otherwise specified.

For the convenience of clearly describing the technical solutions of the embodiments of the present invention, in the embodiments of the present invention, the words "first", "second", and the like are used to distinguish the same items or similar items with basically the same functions or actions, and those skilled in the art can understand that the words "first", "second", and the like do not limit the quantity and execution order.

In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion. In the embodiments of the present invention, the meaning of "a plurality" means two or more unless otherwise specified.

Currently, the 5G NR system includes 3 connection states: RRC idle state, RRC connected state, and RRC activated state.

For a terminal in an inactive state, there is currently no cell selection or reselection scheme for the terminal in the inactive state.

Although the terminal can switch between the three states, the cell selection or reselection scheme of the idle terminal is not applicable to the inactive terminal. First, since only some Long Term Evolution (LTE) system cells (cells capable of being connected to the 5G core network) and all 5G NR system cells support inactive signaling configuration and related signaling, when a terminal selects or reselects to a cell that does not support an inactive state (e.g., an LTE cell connected to an EPC), it may not be able to support a specific procedure in an inactive state, such as RRC connection recovery/suspension, cell packet transmission, etc. Secondly, an Access Stratum (AS) context (context) of the terminal in the inactive state is active in a certain area, which may be generally regarded AS an access network tracking area (RNA) configured by the network device for the terminal in the inactive state, and when the terminal in the inactive state reselects to an inter-RAT cell (for example, the cell is an LTE cell connected to the EPC), and is not in the RNA range, the AS context of the terminal is automatically released because the AS context cannot be recovered on the network side.

In view of the foregoing problems, embodiments of the present invention provide a cell selection method, a terminal, and a network device, where for a terminal in an inactive state, the network device sends first indication information to the terminal, where the first indication information is used to indicate that the terminal in the inactive state is allowed or prohibited to select a first cell, so that when the terminal in the inactive state selects and reselects a cell, the terminal in the inactive state can determine a candidate cell of the cell in the inactive state according to an indication of the first indication information, and further, the terminal in the inactive state can select a cell that supports the inactive state and/or that is valid AS a UE AS context AS possible.

It should be noted that the cell selection in the embodiment of the present invention includes: the selection of the initial cell and/or the reselection of the cell, where "selection" merely emphasizes the selection action, is not limited by the invention as to whether the initial cell is selected or the cell is reselected. For example, the first indication information is used to indicate that the terminal in the inactive state is allowed or prohibited from selecting the first cell, or the first indication information may be used to indicate that the terminal in the inactive state is allowed or prohibited from reselecting the first cell.

The technical scheme provided by the invention can be applied to various communication systems, such as a 5G communication system, a future evolution system or a plurality of communication convergence systems and the like. A variety of application scenarios may be included, for example, scenarios such as Machine to Machine (M2M), D2M, macro and micro Communication, enhanced Mobile Broadband (eMBB), ultra high reliability and ultra Low Latency Communication (urrllc), and mass internet of things Communication (mtc). These scenarios include, but are not limited to: the communication between the terminals, the communication between the network devices, or the communication between the network devices and the terminals. The embodiment of the invention can be applied to the communication between the network equipment and the terminal in the 5G communication system, or the communication between the terminal and the terminal, or the communication between the network equipment and the network equipment.

Fig. 1 shows a schematic diagram of a possible structure of a communication system according to an embodiment of the present invention. As shown in fig. 1, the communication system includes at least one network device 100 (only one is shown in fig. 1) and one or more terminals 200 to which each network device 100 is connected.

The network device 100 may be a base station, a core network device, a transmit receive node (TRP), a relay station, or an access Point. The network device 100 may be a Base Transceiver Station (BTS) in a Global System for Mobile communication (GSM) or Code Division Multiple Access (CDMA) network, or may be an nb (nodeb) in a Wideband Code Division Multiple Access (WCDMA), or may be an eNB or enodeb (evolved nodeb) in LTE. The Network device 100 may also be a wireless controller in a cloud radio Access Network (CRNA) scenario. The network device 100 may also be a network device in a 5G communication system or a network device in a future evolution network. The words used are not to be construed as limitations of the invention.

The terminal 200 may be a wireless terminal, which may be a device providing voice and/or other traffic data connectivity to a user, a handheld device having wireless communication functionality, a computing device or other processing device connected to a wireless modem, a vehicle mounted device, a wearable device, a terminal in a future 5G network or a terminal in a future evolved PLMN network, etc., as well as a wired terminal. A Wireless terminal may communicate with one or more core networks via a Radio Access Network (RNA), and may be a mobile terminal, such as a mobile telephone (or "cellular" telephone) and a computer with a mobile terminal, for example, a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device, which exchange languages and/or data with the Radio Access Network, and Personal Communication Service (PCS) telephone, cordless telephone, Session Initiation Protocol (SIP) phone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA), and the like, or a mobile device, user equipment (user equipment, UE), UE terminal, Access terminal, Wireless communication device, terminal unit, terminal station, mobile station (mobile station), and the like, Mobile Station (Mobile), Remote Station (Remote Station), Remote Station, Remote terminal (Remote terminal), Subscriber Unit (Subscriber Unit), Subscriber Station (Subscriber Station), user agent (user), terminal device, etc. As an example, in the embodiment of the present invention, fig. 1 illustrates that the terminal is a mobile phone.

The first embodiment is as follows:

fig. 2 is a flowchart illustrating a cell selection method according to an embodiment of the present invention. The method specifically comprises the following steps:

s201, the network equipment sends first indication information to the terminal.

Correspondingly, the opposite terminal receives the first indication information.

The network device in the embodiment of the present invention may be a network device in the communication system shown in fig. 1, for example, a base station; the terminal in the embodiment of the present invention may be a terminal device in the communication system shown in fig. 1.

The first indication information is used for indicating that the terminal in the inactive state is allowed or forbidden to select the first cell.

Illustratively, the terminal in the embodiment of the present invention is an inactive terminal.

In this embodiment of the present invention, the first indication information may be carried in a system message sent by a network device to a terminal. The system message may be, for example, a Master Information Block (MIB), a system Information block type1 (systemlnformationblocktype 1, SIB1), Remaining Minimum System Information (RMSI), or the like.

S202, the terminal determines a candidate cell of the terminal in the non-activated state according to the first indication information.

The candidate cells are part or all of the first cells.

In the embodiment of the present invention, when the first indication information is used to indicate that the terminal in the inactive state is allowed to select the first cell, the terminal in the inactive state uses part or all of the first cell as the candidate cell of the terminal in the inactive state according to the first indication information.

In the embodiment of the present invention, when the first indication information is used to indicate that the terminal in the inactive state is prohibited from selecting the first cell, the terminal in the inactive state does not use the first cell as a candidate cell of the terminal in the inactive state according to the first indication information.

In the embodiment of the present invention, during performing cell selection or reselection, the terminal in the inactive state may perform different operations according to different roles of the first indication information.

In one example, when the first indication information indicates that the terminal in the inactive state is prohibited from selecting the first cell, the terminal in the inactive state may not consider the first cell as the candidate cell for a period of time. Or, when the first indication information is used to indicate that the terminal in the inactive state is allowed to select the first cell, the terminal in the inactive state may consider the first cell as a candidate cell.

Optionally, the first indication information sent by the network device to the terminal may specifically have the following three forms. Specifically, the method comprises the following steps:

in a first form:

the network device directly indicates the first indication information.

Illustratively, the first indication information is information indicating that the terminal in the inactive state is allowed to select the first cell, or information indicating that the terminal in the inactive state is prohibited from selecting the first cell.

In a second form:

the network device sends the RNA identification and the barred information (bar information for short) corresponding to the RNA identification to the terminal in the non-activated state.

Illustratively, the first indication information includes M RNA identifiers, and the first indication information is used to indicate that the terminal in the inactive state is allowed or prohibited to select the first cell, where the first cell corresponds to each RNA of the M RNAs, M is a positive integer, and one RNA corresponds to at least one cell, that is, at least one cell is included in one RNA range.

In one example, the RNA marker includes: the RNA mark of the cell and/or the RNA mark of the adjacent cell.

In one example, the M RNA signatures described above may be carried in a system message.

The RNA identification mentioned above takes RNA ID as an example:

example 1: if the first indication information comprises an RNA ID and corresponding bar information. Assuming that the RNA ID is 1, the corresponding bar information includes, but is not limited to, the following 2 combinations: example 1) RNA ID 1, prohibited; example 2) RNA ID 1, not prohibited/allowed (not Barred).

Example 2: if the first indication information comprises a plurality of RNA IDs and corresponding bar information. Taking 2 RNA IDs as an example for illustration, assuming that the two RNA IDs are 7 and 10, respectively, the corresponding bar information includes but is not limited to the following 4 combinations: example 1) RNA ID 7, barred; RNA ID 10, barred; example 2) RNA ID 7, barred; RNA ID 10, notgared; example 3) RNA ID 7, not Barred; RNA ID 10, barred; example 4) RNA ID 7, not Barred; RNA ID 10, not Barred.

In this form, correspondingly, during the process of cell selection or reselection performed by the terminal in the inactive state, different operations may be performed according to different roles of the first indication information. Specifically, the method comprises the following steps:

the terminal in the inactive state may not consider the cell belonging to the M RNAs as a candidate cell for a period of time, or the terminal in the inactive state may consider the cell belonging to the M RNAs as a candidate cell.

In a third form:

the network device sends a blacklist to the terminal in the inactive state for assisting the terminal in the inactive state in cell selection.

Illustratively, the first indication information includes a black list, where the black list includes an identifier of at least one first cell, and the first indication information is used to indicate that the terminal in the inactive state is prohibited from selecting the at least one first cell.

In one example, the blacklist described above can be carried in system messages or RRC dedicated signaling.

For example, when the black list is used to assist the terminal in the inactive state to select the initial cell, the system message may be: MIB, SIB1, RMSI, etc. When the blacklist is used to assist the inactive terminal in cell selection, the system message may be: SIB3, SIB4, SIB5, SIBx newly introduced by System messages, and Other System Information (OSI).

Illustratively, the RRC dedicated signaling may be: RRC Connection release message (RRC Connection release), RRC Connection Resume message (RRC Connection Resume), RRC Connection Suspend message (RRCConnection Suspend), RRC Connection Reconfiguration message (RRC Connection Reconfiguration), and the like.

The system message example and the RRC dedicated signaling example are only for illustration and are not limited to the system message and the RRC dedicated signaling, and the embodiment of the present invention is not limited to the system message and the RRC dedicated signaling.

In this form, correspondingly, during the cell selection or reselection performed by the terminal in the inactive state, the following operations are performed. Specifically, the method comprises the following steps:

in the process of cell selection or reselection performed by the terminal in the inactive state, the first cell in the blacklist may be ignored, that is, the first cell in the blacklist is not used as a candidate cell.

It should be noted that in the embodiment of the present invention, RRC dedicated signaling is prioritized over system messages, i.e. if RRC signaling provides a dedicated blacklist, a terminal in an inactive state may ignore the blacklist in the system messages.

The embodiment of the invention provides a cell selection method, which mainly aims at an inactive state terminal, and a network device sends first indication information to the terminal, wherein the first indication information is used for indicating that the inactive state terminal is allowed or forbidden to select a first cell, so that the inactive state terminal can determine a candidate cell of the inactive state cell according to the indication of the first indication information when the cell is selected and reselected, and the inactive state terminal can select a cell which supports the inactive state and/or has effective UE AS context AS far AS possible.

Example two:

fig. 3 is a flowchart illustrating a cell selection method according to an embodiment of the present invention. The embodiment of the invention mainly aims at the cell selection process under the condition that the first indication information only contains K RNA identifications and the first indication information does not have obvious bar information to indicate the purposes of the K RNA identifications.

Specifically, as shown in fig. 3, the method includes the following steps:

s301, the network equipment sends first indication information to the terminal.

Wherein, the first indication information comprises K RNA marks, and K is a positive integer.

Illustratively, the K RNA signatures described above include: and the initial cell selection terminal selects the RNA identification of the cell detected by the terminal or the RNA identification of the neighbor cell of the cell where the terminal currently resides.

S302, the network equipment configures N RNA identifications for the terminal.

Correspondingly, the opposite terminal receives N RNA identifications.

It should be noted that there is no obvious step sequence between S301 and S302 in the embodiment of the present invention, and S302 may be executed before S301, after S301, or simultaneously with S301, which is not limited in this respect.

Optionally, in this embodiment of the present invention, the network device configures, for the terminal in the inactive state, RNA configuration information of the terminal in the inactive state, where the RNA configuration information includes N RNA identifiers.

In this embodiment of the present invention, if the K RNA identifiers include X RNA identifiers of N RNA identifiers, the first indication information is used to indicate that the terminal in the inactive state is allowed to select the first cell, where the first cell is a cell corresponding to the X RNA identifiers.

In the embodiment of the present invention, if any RNA identifier is not included in the K RNA identifiers, the first indication information is used to indicate that the terminal in the non-activated state is prohibited from selecting the first cell, where the first cell is a cell corresponding to the K RNA identifiers; K. n, X are positive integers and K, N is greater than or equal to X.

It should be noted that the numbers of K and M in the embodiment of the present invention may be the same or different, and the present invention is not limited thereto.

For example, the RNA ID is taken as an example of the RNA ID, and it is assumed that the first indication information includes 2 RNA IDs, and the 2 RNA IDs are 7 and 10, respectively, and the network device is configured with 3 RNA IDs for the terminal in the inactive state, and the 3 RNA IDs are 1, 2, and 7, respectively. Since the first indication information and the RNA ID of the network device as the terminal both include the RNA ID of 7, the first indication information may be used by default to indicate that the terminal in the inactive state is allowed to select the cell corresponding to the RNA with the RNA ID of 7. And the RNA ID of 10 is not included in the RNA ID of the terminal, the first indication information may be used as a default to instruct the terminal in the inactive state to select the cell corresponding to the RNA with the RNA ID of 10.

S303, the terminal determines the candidate cell of the terminal in the non-activated state according to the first indication information.

The candidate cells are part or all of the first cells.

the terminal in the inactive state may consider a cell containing an RNA ID of an RNA ID configured for the terminal by the network device as a candidate cell, or the terminal in the inactive state may not consider a cell not containing an RNA ID of an RNA ID configured for the terminal by the network device as a candidate cell for a period of time.

The embodiment of the invention provides a cell selection method, which mainly aims at an inactive state terminal, wherein a network device sends first indication information containing K RNA identifications and N RNA identifications configured for the terminal to the terminal, so that when the inactive state terminal only contains the RNA identifications in the first indication information, the first cell allowing or prohibiting the access of the inactive state terminal can be determined based on the RNA identifications indicated by the first indication information and the RNA identifications configured for the terminal by the network device, and therefore, when the inactive state terminal selects and reselects a cell, a candidate cell of the inactive state cell can be determined, and the inactive state terminal can select a cell supporting the inactive state and/or the UE AScontext to be effective as far as possible.

It should be noted that, the descriptions related to the second embodiment and the first embodiment can refer to the contents of the first embodiment, and are not repeated herein.

Example three:

fig. 4 is a flowchart illustrating a cell selection method according to an embodiment of the present invention. Specifically, the embodiment of the present invention is mainly directed to further extension and introduction of a cell reselection process. As shown in fig. 4, the method includes the steps of:

s401, the network equipment configures configuration parameters for the terminal.

Correspondingly, the opposite terminal receives the configuration information.

It should be noted that there is no obvious step sequence between S401 and S402 in the embodiment of the present invention, and 402 may be executed before S401, after S401, or simultaneously with S401, which is not limited in this respect.

The configuration parameters in the embodiment of the present invention are used for cell reselection in an inactive state, and the configuration information includes at least one of the following: frequency priority, frequency offset, and cell specific offset. When the configuration parameters include: frequency priority, frequency offset, and cell-specific offset, the configuration parameters are further used to calculate Reference Signal Received Power (RSRP) of each cell for the serving cell where the terminal in the inactive state currently resides and the neighboring cells of the serving cell.

Illustratively, the frequency priority in the configuration information exists in a list form, the frequency priority list includes at least one frequency priority and at least one frequency information, and each frequency priority corresponds to one frequency information; the frequency offsets in the configuration information are in the form of a list, where the frequency offset list includes at least one frequency information and at least one frequency offset, and each frequency information corresponds to one frequency offset.

In the embodiment of the present invention, the configuration parameters may be one set or two sets, if the network device configures only one set of configuration information for the terminal, the configuration of the parameter values for cell selection/reselection of the idle terminal and the inactive terminal is completely the same, and if the network device configures two sets of configuration information for the terminal, the configuration of the parameter values for cell selection/reselection of the idle terminal and the inactive terminal is partially the same or completely different.

In one example, the configuration parameters include at least one of: at least one of intra-RAT (NR or LTE) frequency priority, frequency offset, cell specific offset; and/or at least one of inter-RAT (LTE or NR) frequency priority, frequency offset, cell specific offset.

S402, the network equipment sends first indication information to the terminal.

S403, the terminal determines the candidate cell of the terminal in the non-activated state according to the configuration parameter and the first indication information.

The candidate cells are part or all of the first cells.

In the embodiment of the present invention, in the process of performing cell reselection by the terminal in the inactive state, different operations may be performed according to the frequency priority of the neighboring cell of the serving cell where the terminal in the inactive state currently resides and the frequency priority of the serving cell where the terminal in the inactive state currently resides.

Optionally, in this embodiment of the present invention, if the configuration parameter includes a frequency priority, and the frequency priority of the second cell is greater than or equal to the frequency priority of the serving cell, the first indication information is used to indicate that the terminal in the inactive state is allowed to select the first cell, where the first cell is the second cell, and the second cell is at least one of neighboring cells of the serving cell where the terminal in the inactive state currently resides.

Optionally, in this embodiment of the present invention, the configuration parameters include: the frequency priority, the frequency offset, and the cell-specific offset, that is, the configuration parameters may be used in a scenario where the RSRP of each cell is calculated for a serving cell where the terminal in the inactive state currently resides and a neighboring cell of the serving cell. If the frequency priority of the second cell is smaller than the frequency priority of the serving cell and the RSRP of the second cell is greater than the RSRP of the serving cell, the first indication information is used to indicate that the terminal in the inactive state is allowed to select the first cell, where the first cell is the second cell and the second cell is an adjacent cell of the serving cell and allows the first cell.

Optionally, in combination with the cell selection scheme of the second embodiment, when the first indication information includes K RNA identifiers. The method further comprises the following steps:

s402a, the network device configures N RNA identifications for the terminal.

Correspondingly, the opposite terminal receives N RNA identifications.

Wherein, the K RNA marks comprise: and (3) identifying the RNA to which the cell belongs.

In an embodiment of the present invention, if the configuration parameter includes a frequency priority, where the K RNA identifiers include X RNA identifiers of N RNA identifiers, and a frequency priority of a cell corresponding to Y RNAs in the X RNA identifiers is greater than or equal to a frequency priority of a serving cell in which the terminal in the inactive state currently resides, the first indication information is used to indicate that the terminal in the inactive state is allowed to select a first cell, where the first cell is a cell corresponding to Y RNAs, Y is a positive integer, and X is greater than or equal to Y.

For example, for a frequency with a frequency priority higher than or equal to the frequency priority of the serving cell in which the terminal in the inactive state currently resides, steps a1 and a2, or step B, are performed:

step A1: and if part or all of the RNAIDs broadcast by the high-priority frequency cell or the equivalent-priority frequency cell are contained in the RNA IDs configured for the terminal by the network equipment, the terminal in the non-activated state considers the cells corresponding to the part or all of the RNA IDs as candidate cells.

Step A2: and the terminal in the non-activated state considers the cells corresponding to the part or all of the RNA IDs as candidate cells, and further calculates whether the cell channel quality meets a preset reselection criterion or not based on the priority parameters. For example, the channel quality of the high priority frequency cell is greater than a preset threshold, and the duration exceeds the preset threshold.

Or,

and B: and if all the RNA IDs broadcasted by the high-priority frequency cell or the equal-priority frequency cell are not contained in the RNA IDs configured for the terminal by the network equipment, the terminal in the non-activated state does not consider the cell corresponding to the RNA ID as a candidate cell.

In the embodiment of the present invention, the configuration parameters include: the configuration parameters may be used in a scenario of calculating RSRP of each cell after reordering a serving cell where the terminal in the inactive state currently resides and neighbor cells of the serving cell. If the K RNA identifiers include X RNA identifiers of N RNA identifiers, the frequency priority of a cell corresponding to Z RNAs in the X RNA identifiers is less than the frequency priority of the serving cell, and the RSRP of a cell corresponding to Z RNAs is greater than the RSRP of the serving cell, the first indication information is used to indicate that the terminal in the inactive state is allowed to select a first cell, where the first cell is a cell corresponding to the Z RNA identifiers, Z is a positive integer, and X is greater than or equal to Z.

Illustratively, the frequency priority for the cell is less than the frequency priority of the serving cell in which the terminal in the inactive state currently resides. And executing the step C or the step D.

And C: if part or all of the RNA IDs broadcasted by the low-priority frequency cell are contained in the RNA IDs configured for the terminal by the network equipment, and the RSRP of the cell corresponding to one or more of the part or all of the RNA IDs is larger than the RSRP of the serving cell, the terminal in the inactive state considers the cell corresponding to one or more of the part or all of the RNA IDs as a candidate cell, and further calculates whether the channel quality of the cells meets the preset reselection criterion or not based on the priority parameter. For example, the channel quality of the high priority frequency cell is greater than a preset threshold, and the duration exceeds the preset threshold.

And B: and if all the RNA IDs broadcasted by the low-priority frequency cell are not contained in the RNA IDs configured for the terminal by the network equipment, the terminal in the non-activated state does not consider the cell corresponding to the RNA ID as a candidate cell.

Optionally, in this embodiment of the present invention, the configuration parameter may be carried in a system message or an RRC dedicated signaling, and is used to assist a cell reselection process of an inactive terminal.

Illustratively, the system message may be: SIB3, SIB4, SIB5, SIBx newly introduced by system messages, and OSI. The above description of the dedicated signaling may refer to the description of one embodiment, and is not repeated here.

It should be noted that in the embodiment of the present invention, RRC dedicated signaling is prioritized over system messages, i.e. if RRC signaling provides dedicated priority parameters, the terminal in the inactive state may ignore the priority parameters in the system messages.

In this embodiment, a network device configures configuration parameters for a terminal and sends first indication information to the terminal, where the first indication information is used to indicate that the terminal in an inactive state is allowed or prohibited from selecting a first cell, so that when the terminal in the inactive state reselects a cell, the terminal in the inactive state can select a candidate cell of the cell in the inactive state from the first cell selected by the terminal in the inactive state indicated by the first indication information, where the first cell is allowed to be selected by the terminal in the inactive state, so that the terminal in the inactive state can select a cell that supports the inactive state and/or UE AS context AS effectively AS possible.

It should be noted that, in the third embodiment, the description related to the first embodiment and the second embodiment can refer to the content in the first embodiment, and the description thereof is omitted here.

Example four:

fig. 5 is a schematic diagram of a hardware structure of a terminal for implementing an embodiment of the present invention. As shown in fig. 5, the terminal 50 includes: a receiving module 51 and a selecting module 52, wherein:

a receiving module 51, configured to receive first indication information sent by a network device, where the first indication information is used to indicate that an inactive terminal is allowed or prohibited to select a first cell.

A determining module 52, configured to determine, according to the first indication information received by the receiving module 51, a candidate cell of the terminal in the inactive state, where the candidate cell is a part or all of the first cells.

Optionally, the first indication information includes M access network tracking area RNA identifiers; the first cell is corresponding to the M RNAs, one RNA corresponds to at least one cell, and M is a positive integer.

Optionally, the first indication information includes a blacklist, where the blacklist includes an identifier of at least one first cell, and the first indication information is used to indicate that the terminal in the inactive state is prohibited from selecting the at least one first cell.

Optionally, the first indicator information comprises K RNA signatures; if the K RNA identifiers include X RNA identifiers of N RNA identifiers configured by the network device for the terminal, the first indication information is used to indicate that the terminal in the inactive state is allowed to select a first cell, where the first cell is a cell corresponding to the X RNA identifiers; if any RNA mark in the N RNA marks is not included in the K RNA marks, the first indication information is used for indicating that the terminal in the non-activated state is forbidden to select a first cell, and the first cell is a cell corresponding to the K RNA marks; wherein one RNA corresponds to at least one cell, K, N, X are positive integers, and K, N is greater than or equal to X.

Optionally, the determining module 52 is specifically configured to: determining a candidate cell of the terminal in the non-activated state according to the configuration parameters configured for the terminal by the network equipment and the first indication information; the configuration parameters are used for cell reselection in an inactive state, and include at least one of the following: frequency priority, frequency offset, and cell specific offset.

Optionally, the configuration parameter includes a frequency priority; the first indication information comprises K RNA identifications; if the frequency priority of a cell corresponding to Y RNAs in the X RNAs is greater than or equal to the frequency priority of a serving cell where the terminal in the inactive state currently resides, the first indication information is used to indicate that the terminal in the inactive state is allowed to select a first cell, where the first cell is a cell corresponding to the Y RNAs, and one RNA corresponds to at least one cell; wherein K, N, X, Y is a positive integer, K, N is greater than or equal to X, and X is greater than or equal to Y.

Optionally, the configuration parameters include: frequency priority, frequency offset, and cell specific offset; the configuration parameters are also used for reordering the service cell where the terminal in the inactive state resides and the neighboring cells of the service cell and then calculating the RSRP of each cell; the first indication information comprises K access network tracking area RNA identifications; if the frequency priority of a cell corresponding to Z RNAs in the X RNAs is less than the frequency priority of the serving cell and the RSRP of a cell corresponding to Z RNAs is greater than the RSRP of the serving cell, the first indication information is used to indicate that the terminal in the inactive state is allowed to select a first cell, where the first cell is a cell corresponding to Z RNAs, and one RNA corresponds to at least one cell; wherein K, N, X, Z is a positive integer, K, N is greater than or equal to X, and X is greater than or equal to Z.

Optionally, the configuration parameter includes a frequency priority; if the frequency priority of the second cell is greater than or equal to the frequency priority of the serving cell, the first indication information is used for indicating that the terminal in the inactive state is allowed to select a first cell, wherein the first cell is the second cell, and the second cell is a neighboring cell of the serving cell.

Optionally, the configuration parameters include: frequency priority, frequency offset, and cell specific offset; the configuration parameters are also used for reordering the service cell where the terminal in the inactive state resides and the neighboring cells of the service cell and then calculating the RSRP of each cell; if the frequency priority of the second cell is less than the frequency priority of the serving cell and the RSRP of the second cell is greater than the RSRP of the serving cell, the first indication information is used to indicate that the terminal in the inactive state is allowed to select the first cell, where the first cell is the second cell and the second cell is an adjacent cell of the serving cell and allows the first cell.

Optionally, the first indication information is carried in a system message or RRC dedicated signaling.

The terminal provided by the embodiment of the invention receives the first indication information sent by the network device, wherein the first indication information is used for indicating that the terminal in the inactive state is allowed or forbidden to select the first cell, so that the terminal in the inactive state can determine the candidate cell of the cell in the inactive state according to the indication of the first indication information when the terminal in the inactive state selects and reselects the cell, and further the terminal in the inactive state can select a cell supporting the inactive state and/or the UE AS context AS effective AS possible.

The terminal device provided in the embodiment of the present invention can implement each process shown in any one of fig. 2 to 4 in the above method embodiments, and details are not described here again to avoid repetition.

Example five:

fig. 6 is a schematic diagram of a hardware structure of a network device for implementing an embodiment of the present invention. As shown in fig. 6, the network device 60 includes: a sending module 61, wherein:

a sending module 61, configured to send the first indication information to the terminal.

Optionally, the first indication information comprises M RNA signatures; the first cell is corresponding to the M RNAs, one RNA corresponds to at least one cell, and M is a positive integer.

Optionally, as shown in fig. 6, the network device 60 further includes: a configuration module 62, wherein:

a configuration module 62, configured to configure configuration parameters for the terminal; the configuration parameter is used for cell reselection in an inactive state, the configuration parameter is used for indicating the terminal to determine a candidate cell of the terminal in the inactive state according to the configuration parameter and the first indication information, and the configuration parameter includes at least one of the following: frequency priority, frequency offset, and cell specific offset.

Optionally, the configuration parameters include: frequency priority, frequency offset, and cell specific offset; the configuration parameters are also used for calculating the RSRP of each cell for the service cell where the terminal in the non-activated state currently resides and the neighbor cells of the service cell; the first indication information comprises K access network tracking area RNA identifications; if the frequency priority of a cell corresponding to Z RNAs in the X RNAs is less than the frequency priority of the serving cell and the RSRP of a cell corresponding to Z RNAs is greater than the RSRP of the serving cell, the first indication information is used to indicate that the terminal in the inactive state is allowed to select a first cell, where the first cell is a cell corresponding to Z RNAs, and one RNA corresponds to at least one cell; wherein K, N, X, Z is a positive integer, K, N is greater than or equal to X, and X is greater than or equal to Z.

Optionally, the configuration parameters include: frequency priority, frequency offset, and cell specific offset; the configuration parameters are also used for calculating the RSRP of each cell for the service cell where the terminal in the non-activated state currently resides and the neighbor cells of the service cell; if the frequency priority of the second cell is less than the frequency priority of the serving cell and the RSRP of the second cell is greater than the RSRP of the serving cell, the first indication information is used to indicate that the terminal in the inactive state is allowed to select the first cell, where the first cell is the second cell and the second cell is an adjacent cell of the serving cell and allows the first cell.

In the network device provided by the embodiment of the present invention, the network device sends the first indication information to the terminal in the inactive state, where the first indication information is used to indicate that the terminal in the inactive state is allowed or prohibited to select the first cell, so that when the terminal in the inactive state selects and reselects a cell, the candidate cell of the cell in the inactive state can be determined according to the indication of the first indication information, and the terminal in the inactive state can further select a cell that supports the inactive state and/or UEAS context as effectively as possible.

Example six:

fig. 7 is a schematic diagram of a hardware structure of a terminal for implementing an embodiment of the present invention, where the terminal 700 includes, but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, a processor 7010, and a power supply 7011. Those skilled in the art will appreciate that the terminal configuration shown in fig. 7 is not intended to be limiting, and that the terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The radio frequency unit 701 is configured to receive first indication information sent by a network device, where the first indication information is used to indicate that an inactive terminal is allowed or prohibited to select a first cell; a processor 7010, configured to determine, according to the first indication information, candidate cells of the terminal in the inactive state, where the candidate cells are part or all of the first cells.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 701 may be used for receiving and sending signals during a message transmission and reception process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 7010; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 701 may also communicate with a network and other devices through a wireless communication system.

The terminal provides wireless broadband internet access to the user via the network module 702, such as assisting the user in sending and receiving e-mails, browsing web pages, and accessing streaming media.

The audio output unit 703 may convert audio data received by the radio frequency unit 701 or the network module 702 or stored in the memory 709 into an audio signal and output as sound. Also, the audio output unit 703 may also provide audio output related to a specific function performed by the terminal 700 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 703 includes a speaker, a buzzer, a receiver, and the like.

The input unit 704 is used to receive audio or video signals. The input Unit 704 may include a Graphics Processing Unit (GPU) 7041 and a microphone 7042, and the Graphics processor 7041 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 706. The image frames processed by the graphic processor 7041 may be stored in the memory 709 (or other storage medium) or transmitted via the radio unit 701 or the network module 702. The microphone 7042 may receive sounds and may be capable of processing such sounds into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 701 in case of a phone call mode.

The terminal 700 also includes at least one sensor 705, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 7061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 7061 and/or a backlight when the terminal 700 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in multiple directions (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal attitude (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 705 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The display unit 706 is used to display information input by the user or information provided to the user. The Display unit 706 may include a Display panel 7061, and the Display panel 7061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 707 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 7071 (e.g., operations by a user on or near the touch panel 7071 using a finger, a stylus, or any other suitable object or attachment). The touch panel 7071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 7010, and receives and executes commands sent from the processor 7010. In addition, the touch panel 7071 can be implemented by various types such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 707 may include other input devices 7072 in addition to the touch panel 7071. In particular, the other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described herein again.

Further, the touch panel 7071 may be overlaid on the display panel 7061, and when the touch panel 7071 detects a touch operation on or near the touch panel 7071, the touch operation is transmitted to the processor 7010 to determine the type of the touch event, and then the processor 7010 provides a corresponding visual output on the display panel 7061 according to the type of the touch event. Although the touch panel 7071 and the display panel 7061 are shown in fig. 7 as two separate components to implement the input and output functions of the terminal, in some embodiments, the touch panel 7071 and the display panel 7061 may be integrated to implement the input and output functions of the terminal, which is not limited herein.

The interface unit 708 is an interface for connecting an external device to the terminal 700. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 708 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 700 or may be used to transmit data between the terminal 700 and the external device.

The memory 709 may be used to store software programs as well as various data. The memory 709 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 709 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 7010 is a control center of the terminal, connects various parts of the entire terminal by various interfaces and lines, and performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 709 and calling data stored in the memory 709, thereby integrally monitoring the terminal. The processor 7010 may include one or more processing units; preferably, the processor 7010 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 7010.

The terminal 700 may further include a power supply 7011 (e.g., a battery) for powering the various components, and preferably, the power supply 7011 may be logically coupled to the processor 7010 via a power management system that provides functionality for managing charging, discharging, and power consumption.

In addition, the terminal 700 includes some functional modules that are not shown, and are not described in detail herein.

Example seven:

fig. 8 is a schematic hardware structure diagram of a network device for implementing an embodiment of the present invention, where the network device 800 includes: a processor 801, a transceiver 802, a memory 803, a user interface 804 and a bus interface.

The transceiver 802 is configured to send first indication information to a terminal; the first indication information is used for indicating that the terminal in the inactive state is allowed or forbidden to select the first cell, the first indication information is used for indicating that the terminal determines a candidate cell of the terminal in the inactive state according to the first indication information, and the candidate cell is a part of or all cells in the first cell.

In the embodiment of the present invention, in fig. 8, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by the processor 801 and various circuits of the memory represented by the memory 803 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 802 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The user interface 804 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc. The processor 801 is responsible for managing the bus architecture and general processing, and the memory 803 may store data used by the processor 801 in performing operations.

In addition, the network device 800 further includes some functional modules that are not shown, and are not described herein again.

Example eight:

optionally, an embodiment of the present invention further provides a terminal, including a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, implements the processes of the cell selection method in the first to third embodiments, and can achieve the same technical effects, and details are not repeated here to avoid repetition.

Optionally, an embodiment of the present invention further provides a network device, including a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, implements the cell selection process in the first to third embodiments, and can achieve the same technical effect, and details are not repeated here to avoid repetition.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements multiple processes of the cell selection method in the foregoing embodiments, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a random Access Memory (rnado Access Memory (RAM), a magnetic disk or an optical disk.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the multiple processes of the cell selection method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer readable storage medium is, for example, ROM, RAM, magnetic disk or optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A cell selection method is applied to a terminal, and the method comprises the following steps:

2. The method of claim 1, wherein the first indication information comprises M access network tracking area RNA identities;

the first cell is corresponding to the M RNAs, one RNA corresponds to at least one cell, and M is a positive integer.

3. The method of claim 1, wherein the first indication information comprises a blacklist, and wherein the blacklist includes an identification of at least one first cell, and wherein the first indication information is used to indicate that the terminal in the inactive state is prohibited from selecting the at least one first cell.

4. The method of claim 1, wherein the first indication information comprises K access network tracking area RNA identities;

if the K RNA identifiers include X RNA identifiers of N RNA identifiers configured by the network device for the terminal, the first indication information is used to indicate that the terminal in the inactive state is allowed to select a first cell, where the first cell is a cell corresponding to the X RNA identifiers;

if the K RNA identifications do not contain any RNA identification in the N RNA identifications, the first indication information is used for indicating that the terminal in the non-activated state is forbidden to select a first cell, and the first cell is a cell corresponding to the K RNA identifications;

wherein, one RNA corresponds to at least one cell, K, N, X are positive integers, and K and N are greater than or equal to X.

5. The method of claim 1, wherein the determining the candidate cells of the terminal in the inactive state according to the first indication information comprises:

determining a candidate cell of the terminal in the non-activated state according to the configuration parameters configured for the terminal by the network equipment and the first indication information; wherein the configuration parameters are used for cell reselection in an inactive state, and the configuration parameters include at least one of: frequency priority, frequency offset, and cell specific offset.

6. The method of claim 5, wherein the configuration parameters include a frequency priority;

the first indication information comprises K access network tracking area RNA identifications;

the K RNA identifiers include X RNA identifiers of N RNA identifiers configured by the network device for the terminal, and if the frequency priority of a cell corresponding to Y RNAs in the X RNA identifiers is greater than or equal to the frequency priority of a serving cell in which the terminal in the inactive state currently resides, the first indication information is used to indicate that the terminal in the inactive state is allowed to select a first cell, where the first cell is a cell corresponding to the Y RNAs, and one RNA corresponds to at least one cell;

wherein K, N, X, Y is a positive integer, K, N is greater than or equal to X, and X is greater than or equal to Y.

7. The method of claim 5, wherein the configuration parameters comprise: the frequency priority, the frequency offset, and the cell-specific offset; the configuration parameters are further used for calculating Reference Signal Received Power (RSRP) of each cell for a serving cell where the terminal in the inactive state currently resides and neighbor cells of the serving cell;

the K RNA identifications comprise X RNA identifications in the N RNA identifications,

if the frequency priority of the cell corresponding to Z RNAs in the X RNAs is less than the frequency priority of the serving cell, and the RSRP of the cell corresponding to the Z RNAs is greater than the RSRP of the serving cell, the first indication information is used to indicate that the terminal in the inactive state is allowed to select a first cell, where the first cell is a cell corresponding to the Z RNAs; one RNA corresponds to at least one cell;

wherein K, N, X, Z is a positive integer, K, N is greater than or equal to X, and X is greater than or equal to Z.

8. The method of claim 5, wherein the configuration parameters include a frequency priority;

if the frequency priority of the second cell is greater than or equal to the frequency priority of the serving cell, the first indication information is used for indicating that the terminal in the inactive state is allowed to select a first cell, where the first cell is the second cell and the second cell is a neighboring cell of the serving cell.

9. The method of claim 5, wherein the configuration parameters comprise: the frequency priority, the frequency offset, and the cell-specific offset; the configuration parameters are further used for calculating Reference Signal Received Power (RSRP) of each cell for a serving cell where the terminal in the inactive state currently resides and neighbor cells of the serving cell;

if the frequency priority of the second cell is less than the frequency priority of the serving cell and the RSRP of the second cell is greater than the RSRP of the serving cell, the first indication information is used to indicate that the terminal in the inactive state is allowed to select the first cell, where the first cell is the second cell and the second cell is an adjacent cell of the serving cell, and the first cell is allowed to be selected by the second cell.

10. The method according to any of claims 1 to 9, wherein the first indication information is carried in a system message or RRC dedicated signaling.

11. A cell selection method applied to a network device, the method comprising:

sending first indication information to a terminal;

12. The method of claim 11, wherein the first indication information comprises M first access network tracking area RNA identities;

13. The method of claim 11, wherein the first indication information includes a blacklist, the blacklist includes an identification of at least one first cell, and the first indication information is used to indicate that the terminal in the inactive state is prohibited from selecting the at least one first cell.

14. The method of claim 11, wherein the first indication information comprises K access network tracking area RNA identities;

wherein one RNA corresponds to at least one cell, K, N, X are positive integers, and K, N is greater than or equal to X.

15. The method of claim 11, further comprising:

configuring configuration parameters for the terminal; the configuration parameter is used for cell reselection in an inactive state, the configuration parameter is used for instructing the terminal to determine a candidate cell of the terminal in the inactive state according to the configuration parameter and the first indication information, and the configuration parameter includes at least one of: frequency priority, frequency offset, and cell specific offset.

16. The method of claim 15, wherein the configuration parameters include a frequency priority;

17. The method of claim 15, wherein the configuration parameters comprise: the frequency priority, the frequency offset, and the cell-specific offset; the configuration parameters are further used for calculating Reference Signal Received Power (RSRP) of each cell for a serving cell where the terminal in the inactive state currently resides and neighbor cells of the serving cell;

if the frequency priority of the cell corresponding to Z RNAs in the X RNAs is less than the frequency priority of the serving cell, and the RSRP of the cell corresponding to the Z RNAs is greater than the RSRP of the serving cell, the first indication information is used to indicate that the terminal in the inactive state is allowed to select a first cell, where the first cell is a cell corresponding to the Z RNAs, and one RNA corresponds to at least one cell;

18. The method of claim 15, wherein the configuration parameters include a frequency priority;

19. The method of claim 15, wherein the configuration parameters comprise: the frequency priority, the frequency offset, and the cell-specific offset; the configuration parameters are further used for calculating Reference Signal Received Power (RSRP) of each cell for a serving cell where the terminal in the inactive state currently resides and neighbor cells of the serving cell;

20. The method according to any of claims 11 to 19, wherein the first indication information is carried in a system message or RRC dedicated signaling.

21. A terminal, comprising:

22. The terminal of claim 21, wherein the first indication information comprises M access network tracking area RNA identities;

23. The terminal of claim 21, wherein the first indication information comprises a blacklist, the blacklist includes an identification of at least one first cell, and the first indication information is used to indicate that the terminal in the inactive state is prohibited from selecting the at least one first cell.

24. The terminal according to claim 21, wherein the determining module is specifically configured to:

25. A network device, comprising:

the first indication information is used for indicating that the terminal in the inactive state is allowed or forbidden to select the first cell, the first indication information is used for indicating that the terminal determines a candidate cell of the terminal in the inactive state according to the first indication information, and the candidate cell is a part of or all cells in the first cell.

26. The network device of claim 25, wherein the first indication information comprises M access network tracking area RNA identities;

27. The network device of claim 25, wherein the first indication information comprises a blacklist, the blacklist includes an identification of at least one first cell, and the first indication information is used to indicate that the terminal in the inactive state is prohibited from selecting the at least one first cell.

28. The network device of claim 25, wherein the network device further comprises:

the configuration module is used for configuring configuration parameters for the terminal; the configuration parameter is used for cell reselection in an inactive state, the configuration parameter is used for instructing the terminal to determine a candidate cell of the terminal in the inactive state according to the configuration parameter and the first indication information, and the configuration parameter includes at least one of: frequency priority, frequency offset, and cell specific offset.

29. A terminal comprising a processor, a memory and a computer program stored on the memory and operable on the processor, the computer program, when executed by the processor, performing the steps of the cell selection method of any one of claims 1 to 10.

30. A network device comprising a processor, a memory and a computer program stored on the memory and operable on the processor, the computer program, when executed by the processor, performing the steps of the cell selection method of any of claims 11 to 20.

31. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the cell selection method according to any one of claims 1 to 20.