CN112714405A

CN112714405A - Cell selection method, device, equipment and computer readable storage medium

Info

Publication number: CN112714405A
Application number: CN201911025880.7A
Authority: CN
Inventors: 范晨; 周志宏; 刘海君; 袁乃华; 佟学俭
Original assignee: Chengdu TD Tech Ltd
Current assignee: TD Tech Chengdu Co Ltd; Chengdu TD Tech Ltd
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2021-04-27
Anticipated expiration: 2039-10-25
Also published as: CN112714405B

Abstract

The embodiment of the invention provides a cell selection method, a device, equipment and a computer readable storage medium, wherein the method comprises the steps of receiving a connection establishment request sent by terminal equipment, wherein the connection establishment request carries cluster information and carrier aggregation information of the terminal equipment; determining the type of the terminal equipment according to the cluster information and the carrier aggregation information of the terminal equipment; determining a cell selection strategy corresponding to the terminal equipment according to the type of the terminal equipment and a preset cell selection strategy; and generating configuration information according to the cell selection strategy corresponding to the terminal equipment, and sending a configuration instruction carrying the configuration information to the terminal equipment, wherein the configuration instruction is used for indicating the terminal equipment to select the cell according to the configuration information. The embodiment of the invention can perform cell selection for the terminal equipment according to the corresponding cell selection strategy, so that the terminal equipment supporting the trunking service preferentially resides in the trunking cell.

Description

Cell selection method, device, equipment and computer readable storage medium

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a cell selection method, an apparatus, a device, and a computer-readable storage medium.

Background

The trunking communication is a mobile communication system for group dispatching command communication, is mainly applied to the field of professional mobile communication, has the function of automatically selecting channels, and is a multipurpose and high-efficiency wireless dispatching communication mode for sharing resources, sharing cost, sharing channel equipment and services. With the development of communication technology, a cluster overlay network can be provided on the existing public network at present, so that a cluster terminal can use cluster service in a place covered by the cluster overlay network; and using public network service in places where the cluster overlay network cannot cover. In order to increase the data transmission speed, the carrier aggregation technology is widely applied. The carrier aggregation technology refers to that a terminal can combine multiple carriers simultaneously and perform data transmission on the carriers simultaneously, so as to improve the data transmission rate.

In the prior art, a Broadband Trunking Communication (B-TrunC) protocol defines a Trunking service specification in a single carrier scenario, where a terminal selects a cell with a strongest signal through physical layer measurement when performing cell selection.

However, when the existing B-TrunC protocol is applied to a trunking Service in a carrier aggregation scenario, when a terminal in a trunking performs cell selection in an idle state, a camping cell is selected only according to physical layer measurement, and the terminal is prone to mistakenly camp on a Packet Service (PS) cell, and thus the trunking Service cannot be performed.

Disclosure of Invention

Embodiments of the present invention provide a cell selection method, an apparatus, a device, and a computer-readable storage medium, so as to solve the problem that when a terminal in a current cluster performs cell selection in an idle state, the terminal is likely to erroneously reside in a PS cell, and thus a cluster service cannot be performed.

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

receiving a connection establishment request sent by a terminal device, wherein the connection establishment request carries cluster information and carrier aggregation information of the terminal device;

determining the type of the terminal equipment according to the cluster information and the carrier aggregation information of the terminal equipment;

determining a cell selection strategy corresponding to the terminal equipment according to the type of the terminal equipment and a preset cell selection strategy;

and generating configuration information according to the cell selection strategy corresponding to the terminal equipment, and sending a configuration instruction carrying the configuration information to the terminal equipment, wherein the configuration instruction is used for indicating the terminal equipment to select the cell according to the configuration information.

In one possible implementation, the type of the terminal device is any one of the following: a single carrier cluster terminal, a multi-carrier cluster terminal, a single carrier Packet Service (PS) terminal and a multi-carrier PS terminal; the preset cell selection strategy comprises the following steps:

for a single carrier cluster terminal, preferentially residing in a cluster cell;

for a multi-carrier cluster terminal, preferentially selecting a cluster carrier of a cluster cell as a primary member carrier (PCC), and taking a Packet Switched (PS) carrier of a PS cell as a secondary member carrier (SCC);

for a single carrier PS terminal, preferentially residing in a PS cell;

for a multi-carrier PS terminal, a PS carrier of a PS cell is preferentially selected as a PCC, and a cluster carrier of a cluster cell is preferentially selected as an SCC.

In a possible implementation manner, the types of the terminal devices under the network device include a PS terminal and a trunking terminal, and the method further includes:

broadcasting a first system message carrying first reselection priority information and second reselection priority information, wherein the first system message is used for indicating a PS terminal to store the first reselection priority information and a trunking terminal to store the second reselection priority information, the priority of a PS carrier in the first reselection priority information is greater than that of a trunking carrier, and the priority of the trunking carrier in the second reselection priority information is greater than that of the PS carrier.

determining the type of each adjacent cell by communicating with network equipment of each adjacent cell, wherein the type of the cell is a PS cell or a cluster cell;

generating a PS (packet switched) neighbor cell list and a trunking neighbor cell list according to the type of each neighbor cell, wherein the PS neighbor cell list comprises the identifier of each adjacent PS cell, and the trunking neighbor cell list comprises the identifier of each adjacent trunking cell;

broadcasting a second system message carrying a PS (packet switched) neighbor cell list and a trunking neighbor cell list, wherein the second system message is used for indicating a PS terminal to measure cells corresponding to each identifier in the PS neighbor cell list, and the trunking terminal measures cells corresponding to each identifier in the trunking neighbor cell list;

and receiving a first measurement result sent by the terminal equipment, and controlling the terminal equipment to carry out cell switching according to the first measurement result.

determining the type of each adjacent cell by communicating with network equipment of each adjacent cell, wherein the cell type is a PS cell or a cluster cell;

receiving a second measurement result sent by the terminal device, wherein the second measurement result is obtained by the terminal device measuring cells corresponding to each identifier in a neighbor cell list, and the neighbor cell list comprises identifiers of all neighbor cells;

when the terminal equipment is a PS terminal, preferentially selecting a target cell switched by the terminal equipment from adjacent PS cells according to the type of each adjacent cell;

and when the terminal equipment is the trunking terminal, preferentially selecting a target cell switched by the terminal equipment from the adjacent trunking cells according to the type of each adjacent cell.

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

sending a connection establishment request to a network device, wherein the connection establishment request carries cluster information and carrier aggregation information of the terminal device, the connection establishment request is used for indicating the network device to determine the type of the terminal device according to the cluster information and the carrier aggregation information of the terminal device, determine a cell selection strategy corresponding to the terminal device according to the type of the terminal device and a preset cell selection strategy, and generate configuration information according to the cell selection strategy corresponding to the terminal device;

receiving a configuration instruction which is sent by the network equipment and carries the configuration information;

and selecting the cell according to the configuration information.

In one possible implementation, the type of the terminal device is any one of the following: the system comprises a single carrier cluster terminal, a multi-carrier cluster terminal, a single carrier PS terminal and a multi-carrier PS terminal; the preset cell selection strategy comprises the following steps:

for a multi-carrier cluster terminal, preferentially selecting a cluster carrier of a cluster cell as PCC and a PS carrier of a PS cell as SCC;

for a single carrier PS terminal, preferentially residing in a PS cell;

In one possible embodiment, the method further comprises:

receiving a first system message which is sent by the network equipment and carries first reselection priority information and second reselection priority information, wherein the priority of a PS carrier in the first reselection priority information is greater than that of a cluster carrier, and the priority of the cluster carrier in the second reselection priority information is greater than that of the PS carrier;

when the terminal equipment is a PS terminal, saving the first reselection priority information;

and when the terminal equipment is the cluster terminal, storing the second reselection priority information.

In one possible embodiment, the method further comprises:

receiving a second system message which is sent by network equipment and carries a PS (packet switched) neighbor cell list and a cluster neighbor cell list, wherein the PS neighbor cell list comprises the identification of each adjacent PS cell, and the cluster neighbor cell list comprises the identification of each adjacent cluster cell;

when the terminal equipment is a PS terminal, measuring cells corresponding to each identifier in the PS neighbor cell list;

when the terminal equipment is a trunking terminal, measuring cells corresponding to each identifier in a trunking neighbor cell list;

and sending a first measurement result to the network equipment, wherein the first measurement result is used for indicating the network equipment to control the terminal equipment to carry out cell switching.

In one possible embodiment, the method further comprises:

measuring the cell corresponding to each identifier in a neighbor cell list to obtain a second measurement result, wherein the neighbor cell list comprises identifiers of all neighbor cells;

and sending the second measurement result to the network device, where the second measurement result is used to indicate that the network device preferentially selects a target cell to which the terminal device is switched from among adjacent PS cells according to the type of each adjacent cell when the terminal device is a PS terminal, and preferentially selects a target cell to which the terminal device is switched from among adjacent trunking cells according to the type of each adjacent cell when the terminal device is a trunking terminal.

In a third aspect, an embodiment of the present invention provides a cell selection apparatus, which is applied to a network device, where the apparatus includes:

a first receiving module, configured to receive a connection establishment request sent by a terminal device, where the connection establishment request carries cluster information and carrier aggregation information of the terminal device;

the first processing module is used for determining the type of the terminal equipment according to the cluster information and the carrier aggregation information of the terminal equipment;

the second processing module is used for determining a cell selection strategy corresponding to the terminal equipment according to the type of the terminal equipment and a preset cell selection strategy;

a first sending module, configured to generate configuration information according to a cell selection policy corresponding to the terminal device, and send a configuration instruction carrying the configuration information to the terminal device, where the configuration instruction is used to instruct the terminal device to perform cell selection according to the configuration information.

for a single carrier PS terminal, preferentially residing in a PS cell;

In a possible implementation manner, the types of the terminal devices under the network device include a PS terminal and a trunking terminal, and the apparatus further includes a second sending module, where the second sending module is configured to:

In a possible implementation manner, the types of the terminal devices under the network device include a PS terminal and a trunking terminal, and the apparatus further includes a first switching module, where the first switching module is configured to:

In a possible implementation manner, the types of the terminal devices under the network device include a PS terminal and a trunking terminal, and the apparatus further includes a second handover module, where the second handover module is configured to:

In a fourth aspect, an embodiment of the present invention provides a cell selection apparatus, which is applied to a terminal device, where the apparatus includes:

a third sending module, configured to send a connection establishment request to a network device, where the connection establishment request carries cluster information and carrier aggregation information of the terminal device; the connection establishment request is used for indicating the network equipment to determine the type of the terminal equipment according to the cluster information and the carrier aggregation information of the terminal equipment, determine a cell selection strategy corresponding to the terminal equipment according to the type of the terminal equipment and a preset cell selection strategy, and generate configuration information according to the cell selection strategy corresponding to the terminal equipment;

a second receiving module, configured to receive a configuration instruction carrying the configuration information sent by the network device;

and the third processing module is used for carrying out cell selection according to the configuration information.

for a single carrier PS terminal, preferentially residing in a PS cell;

In a possible implementation, the apparatus further includes a third receiving module, configured to:

In a possible implementation, the apparatus further includes a third switching module, where the third switching module is configured to:

In a possible implementation, the apparatus further includes a fourth switching module, where the fourth switching module is configured to:

In a fifth aspect, an embodiment of the present invention provides a network device, including: at least one processor and memory;

the memory stores computer-executable instructions;

the at least one processor executing the computer-executable instructions stored by the memory causes the at least one processor to perform the cell selection method as described above in the first aspect and various possible implementations of the first aspect.

In a sixth aspect, an embodiment of the present invention provides a terminal device, including: at least one processor and memory;

the memory stores computer-executable instructions;

the at least one processor executing the computer-executable instructions stored by the memory causes the at least one processor to perform the cell selection method as described above in the second aspect and various possible embodiments of the second aspect.

In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer executing instruction is stored in the computer-readable storage medium, and when a processor executes the computer executing instruction, the method for selecting a cell according to the first aspect and various possible implementations of the first aspect is implemented.

In an eighth aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer executable instruction is stored, and when a processor executes the computer executable instruction, the method for selecting a cell according to the second aspect and various possible embodiments of the second aspect is implemented.

In the cell selection method, the device, the equipment and the computer-readable storage medium provided by the embodiment of the invention, the network equipment receives a connection establishment request sent by the terminal equipment, wherein the connection establishment request carries cluster information and carrier aggregation information of the terminal equipment; determining the type of the terminal equipment according to the cluster information and the carrier aggregation information of the terminal equipment; determining a cell selection strategy corresponding to the terminal equipment according to the type of the terminal equipment and a preset cell selection strategy; and generating configuration information according to a cell selection strategy corresponding to the terminal equipment, and sending a configuration instruction carrying the configuration information to the terminal equipment, wherein the configuration instruction is used for indicating the terminal equipment to select the cell according to the configuration information. The embodiment of the invention determines the type of the terminal equipment according to the cluster information and the carrier aggregation information of the terminal equipment, determines the cell selection strategy corresponding to the terminal equipment according to the type of the terminal equipment and the preset cell selection strategy, and can perform cell selection for the terminal equipment according to the corresponding cell selection strategy, so that the terminal equipment supporting the cluster service preferentially resides in the cluster cell, and the problem that the cluster service cannot be performed due to the mistaken residence in the PS cell is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a flowchart illustrating a cell selection method according to an embodiment of the present invention;

fig. 2 is a schematic diagram of each terminal device type and a corresponding cell selection policy according to an embodiment of the present invention;

fig. 3 is a schematic flowchart illustrating a cell handover performed according to a measurement result of a terminal device in a cell selection method according to another embodiment of the present invention;

fig. 4 is a schematic flowchart illustrating a cell handover performed according to a measurement result of a terminal device in a cell selection method according to another embodiment of the present invention;

fig. 5 is a flowchart illustrating a cell selection method according to yet another embodiment of the present invention;

fig. 6 is a schematic flow chart illustrating a neighboring cell measurement performed in a cell selection method according to a next embodiment of the present invention;

fig. 7 is a schematic flow chart illustrating a neighboring cell measurement performed in a cell selection method according to yet another embodiment of the present invention;

fig. 8 is an interaction signaling diagram of a cell selection method according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a cell selection apparatus according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a cell selection apparatus according to yet another embodiment of the present invention;

fig. 11 is a schematic structural diagram of a cell selection apparatus according to another embodiment of the present invention;

fig. 12 is a schematic structural diagram of a cell selection apparatus according to yet another embodiment of the present invention;

fig. 13 is a schematic hardware structure diagram of a network device according to an embodiment of the present invention;

fig. 14 is a schematic diagram of a hardware structure of a terminal device according to still another embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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, but 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.

In the embodiment, the terminal device includes, but is not limited to, a mobile phone, an intercom, a vehicle-mounted terminal, and the like. Currently, when a terminal device is switched from an idle state to a connected state, a cell with the largest signal strength is selected from a plurality of cells for camping through physical layer measurement. For the trunking terminal supporting the trunking service, since the cell with the largest signal strength may be a PS cell and does not support the trunking service, the trunking terminal cannot perform the trunking service after residing in the PS cell, which affects the user to use the trunking service. The embodiment of the invention can determine the cell selection strategy corresponding to the terminal equipment according to the type of the terminal equipment and the preset cell selection strategy, and can perform cell selection for the terminal equipment according to the corresponding cell selection strategy, so that the terminal equipment supporting the trunking service preferentially resides in the trunking cell, and the problem that the trunking service cannot be performed due to mistaken residence in the PS cell is avoided.

Fig. 1 is a flowchart illustrating a cell selection method according to an embodiment of the present invention. The execution subject of this embodiment is a network device, wherein the network device includes but is not limited to: a transmission point (TRP), a Base Station (BS), a Radio Network Controller (RNC), a Node B (NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a henb (home evolved nodeb), or an hnb (home Node B), a Base Band Unit (BBU), and the like. As shown in fig. 1, the method includes:

s101, receiving a connection establishment request sent by a terminal device, wherein the connection establishment request carries cluster information and carrier aggregation information of the terminal device.

In this embodiment, the cluster information of the terminal device indicates whether the terminal device supports the cluster service. The carrier aggregation information of the terminal equipment represents whether the terminal equipment supports the carrier aggregation service.

The terminal device may generate a connection establishment request carrying the self-trunking information and the carrier aggregation information, and send the connection establishment request to the network device. The network equipment receives a connection establishment request sent by the terminal equipment.

For example, the terminal device sends an RRCConnectionRequest message to the network device, the IsTrunkingUser parameter in the RRCConnectionRequest message characterizes the cluster capability of the terminal device, and the ca-bandwidth csl parameter and the ca-bandwidth csul bandwidth csls parameter in the RRCConnectionRequest message characterize the carrier aggregation capability of the terminal device.

S102, determining the type of the terminal equipment according to the cluster information and the carrier aggregation information of the terminal equipment.

In this embodiment, the types of the terminal device may be a single carrier trunking terminal, a multi-carrier trunking terminal, a single carrier PS terminal, and a multi-carrier PS terminal. The single-carrier trunking terminal refers to terminal equipment which supports single-carrier communication and trunking communication, the multi-carrier trunking terminal refers to terminal equipment which supports multi-carrier communication and trunking communication, the single-carrier PS terminal refers to terminal equipment which supports single-carrier communication and PS communication but does not support trunking communication, and the multi-carrier PS terminal refers to terminal equipment which supports multi-carrier communication and PS communication but does not support trunking communication. The network device may determine the type of the terminal device according to the cluster information and the carrier aggregation information of the terminal device.

S103, determining a cell selection strategy corresponding to the terminal equipment according to the type of the terminal equipment and a preset cell selection strategy.

In this embodiment, the preset cell selection policy includes cell selection policies corresponding to a plurality of terminal device types. The terminal device types correspond to the cell selection strategies one to one. And the network equipment determines a cell selection strategy corresponding to the terminal equipment according to the type of the terminal equipment and a preset cell selection strategy.

S104, generating configuration information according to the cell selection strategy corresponding to the terminal equipment, and sending a configuration instruction carrying the configuration information to the terminal equipment, wherein the configuration instruction is used for indicating the terminal equipment to select the cell according to the configuration information.

In this embodiment, the configuration information may be cell priority information generated according to a cell selection policy, frequency priority information in carrier aggregation, and the like, which is not limited herein. The network equipment generates configuration information according to the cell selection strategy corresponding to the terminal equipment and sends a configuration instruction carrying the configuration information to the terminal equipment. And the terminal equipment receives the configuration instruction and selects the cell according to the configuration information. For example, the terminal device is a multi-carrier trunking terminal, and the priority of the trunking cell indicated in the configuration information is the highest, the terminal device may switch to one trunking cell with the strongest signal in the neighboring trunking cells according to the configuration information.

In the embodiment of the invention, network equipment receives a connection establishment request sent by terminal equipment, wherein the connection establishment request carries cluster information and carrier aggregation information of the terminal equipment; determining the type of the terminal equipment according to the cluster information and the carrier aggregation information of the terminal equipment; determining a cell selection strategy corresponding to the terminal equipment according to the type of the terminal equipment and a preset cell selection strategy; and generating configuration information according to a cell selection strategy corresponding to the terminal equipment, and sending a configuration instruction carrying the configuration information to the terminal equipment, wherein the configuration instruction is used for indicating the terminal equipment to select the cell according to the configuration information. The embodiment of the invention determines the type of the terminal equipment according to the cluster information and the carrier aggregation information of the terminal equipment, determines the cell selection strategy corresponding to the terminal equipment according to the type of the terminal equipment and the preset cell selection strategy, and can perform cell selection for the terminal equipment according to the corresponding cell selection strategy, so that the terminal equipment supporting the cluster service preferentially resides in the cluster cell, and the problem that the cluster service cannot be performed due to the mistaken residence in the PS cell is avoided.

Optionally, the trunking terminal receives an RRC Release message of the network terminal, and allocates a trunking carrier to the highest priority according to a freqprioritylist eutra parameter in the RRC Release message; and the PS terminal receives the RRC Release message of the network terminal and allocates the PS carrier to be the highest priority according to FreqPriorityListEUTRA parameters in the RRC Release message.

As an implementation example of the present invention, a procedure of a trunking terminal being handed over from a PS cell to a trunking cell is taken as an example for explanation. In this example, PS cells are formed on the F1 frequency point, and clustered cells are formed on the F2 frequency point. The trunking terminal sends an RRC Connection request message to the network equipment of the PS cell on the frequency point F1, the network equipment of the PS cell returns the RRC Connection Setup message to the trunking terminal, and the trunking terminal sends the RRC Connection Setup message to the network equipment of the PS cell so as to Complete the establishment of Connection with the network equipment of the PS cell. The network equipment of the PS cell sends the cell reselection priority information to the trunking terminal through an RRC Release message, and the trunking terminal sends an RRC Connection Setup Complete message to the network equipment of the PS cell so as to Release the Connection with the network equipment of the PS cell. And the cluster terminal stores the cell reselection priority information and determines a target cluster cell according to the frequency priority. The trunking terminal sends an RRC Connection request message to the network equipment of the target trunking cell on the frequency point F2, the network equipment of the target trunking cell returns an RRC Connection Setup message to the trunking terminal, and the trunking terminal sends an RRC Connection Setup Complete message to the network equipment of the target trunking cell so as to Complete the establishment of Connection with the network equipment of the target trunking cell.

Optionally, the type of the terminal device may be any one of the following: a single carrier cluster terminal, a multi-carrier cluster terminal, a single carrier Packet Service (PS) terminal and a multi-carrier PS terminal; the preset cell selection strategy comprises the following steps:

for a single carrier PS terminal, preferentially residing in a PS cell;

In this embodiment, the cluster cell refers to a cell supporting cluster communication. A PS cell is a cell that supports PS communication but does not support trunking communication. The cluster carrier is a carrier used for cluster communication between the network device supporting the cluster communication and the cluster terminal. The PS carrier is a carrier used for PS communication between a network device supporting PS communication and a PS terminal.

The preset cell selection strategy comprises a plurality of cell selection strategies, and the types of the terminal equipment correspond to the cell selection strategies one to one. The cell selection strategy corresponding to the single carrier cluster terminal is a cluster cell which preferentially resides; the cell selection strategy corresponding to the multi-carrier cluster terminal is to preferentially select a cluster carrier of a cluster cell as a primary member carrier (PCC), and a Packet Switched (PS) carrier of a PS cell as a secondary member carrier (SCC); the cell selection strategy corresponding to the single carrier PS terminal is a PS cell which preferentially resides; the cell selection strategy corresponding to the multi-carrier PS terminal is to preferentially select a PS carrier of the PS cell as a PCC and a cluster carrier of the cluster cell as an SCC. Fig. 2 is a schematic diagram of each terminal device type and a corresponding cell selection policy according to an embodiment of the present invention.

When the terminal equipment is switched from an idle state to a connected state, cell reselection is performed, and the network equipment can send reselection priority information to the terminal equipment through system information so that the terminal equipment performs cell reselection. Optionally, the types of the terminal devices under the network device include a PS terminal and a trunking terminal, and the method may further include:

In this embodiment, the terminal device under the network device is a terminal device within the signal coverage of the network device. The PS terminal is a terminal device that supports PS communication but does not support trunking communication. The trunking terminal is a terminal device supporting trunking communication and PS communication.

The network device may broadcast a first system message, where the first system message carries the first reselection priority information and the second reselection priority information. Each terminal device under the network device may receive the first system message. The PS equipment under the network equipment stores the first reselection priority information after receiving the first system message, and can preferentially select the network cell of the PS carrier to reside according to the first reselection priority information when the cell is selected. And the cluster terminal under the network equipment stores the second reselection priority information after receiving the first system message, and can preferentially select the network cell of the cluster carrier to reside according to the second reselection priority information when selecting the cell. For example, the network device may add second reselection priority information for the clustered terminals for cell selection in the system message SIB 3.

In this embodiment, the first system message is used to broadcast the first reselection priority information and the second reselection priority information, so that the terminal device within the signal coverage area stores the priority information that needs to be stored in the terminal device, and the cell reselection priority configuration of the terminal device within the signal coverage area can be implemented in a broadcast manner.

When the terminal equipment switches the cells, the adjacent cell measurement is needed, and the network equipment indicates the terminal equipment to switch the cells according to the measurement result of the terminal equipment. Fig. 3 is a schematic flow chart illustrating cell handover according to a measurement result of a terminal device in a cell selection method according to another embodiment of the present invention. This embodiment describes in detail a process of implementing cell handover according to a measurement result of a terminal device based on the embodiment of fig. 1. As shown in fig. 3, the method may further include:

s301, communicating with network equipment of each adjacent cell to determine the type of each adjacent cell, wherein the type of each adjacent cell is a PS cell or a cluster cell.

In this embodiment, the PS cell is a cell that performs communication in a PS communication manner, and the cluster cell is a cell that performs communication in a cluster communication manner. The network device may communicate through the network device of each neighboring cell to determine the type of each neighboring cell. For example, information may be exchanged between enbs over an X2 interface to determine whether a neighboring cell is a cluster cell or a PS cell.

S302, according to the type of each adjacent cell, a PS neighbor cell list and a cluster neighbor cell list are generated, wherein the PS neighbor cell list comprises the identification of each adjacent PS cell, and the cluster neighbor cell list comprises the identification of each adjacent cluster cell.

In this embodiment, the network device may generate a PS neighbor cell list from an identifier of a PS cell adjacent to a cell where the network device is located, and generate a trunking neighbor cell list from an identifier of a trunking cell adjacent to the cell where the network cell is located.

S303, broadcasting a second system message carrying a PS (packet switched) neighbor cell list and a trunking neighbor cell list, wherein the second system message is used for indicating the PS terminal to measure the cells corresponding to the identifiers in the PS neighbor cell list, and the trunking terminal measures the cells corresponding to the identifiers in the trunking neighbor cell list.

In this embodiment, the network device broadcasts a second system message, where the second system message carries the PS neighbor list and the cluster neighbor list. And after receiving the second system message, the PS terminal in the signal coverage range of the network equipment measures the cells corresponding to the identifiers in the PS neighbor cell list according to the PS neighbor cell list to obtain a first measurement result. And after the cluster terminal in the signal coverage range of the network equipment receives the second system message, measuring the cells corresponding to the identifiers in the cluster neighbor list according to the cluster neighbor list to obtain a first measurement result.

For example, the eNB splits the neighbor list into a PS neighbor list and a clustered neighbor list. Adding a PTT (Push-to-Talk) same-frequency neighbor list in an SIB2 message, and adding a PTT inter-frequency neighbor list in an SIB 3. And the PS terminal receives the PS co-frequency/inter-frequency neighbor list of SIB2/3 and measures the adjacent PS cells. And the cluster terminal receives the cluster co-frequency/inter-frequency neighbor list of the newly added SIB2/3 and measures the adjacent cluster cells.

S304, receiving a first measurement result sent by the terminal equipment, and controlling the terminal equipment to carry out cell switching according to the first measurement result.

In this embodiment, the terminal device sends a first measurement result obtained by measurement to the network device. And the network equipment receives the first measurement result and controls the terminal equipment to carry out cell switching according to the first measurement result.

In this embodiment, the neighbor cell list is split into a PS neighbor cell list and a trunking neighbor cell list, and the PS neighbor cell list and the trunking neighbor cell list are broadcasted through the second system message, so that the PS terminal only measures the adjacent PS cells, and selects a target cell for handover in the adjacent PS cells, so that the trunking terminal only measures the adjacent trunking cells, and selects a target cell for handover in the adjacent trunking cells.

Fig. 4 is a schematic flowchart of performing cell handover according to a measurement result of a terminal device in a cell selection method according to another embodiment of the present invention. This embodiment describes in detail a process of implementing cell handover according to a measurement result of a terminal device based on the embodiment of fig. 1. As shown in fig. 4, the method may further include:

s401, communicating with network equipment of each adjacent cell to determine the type of each adjacent cell, wherein the cell type is a PS cell or a cluster cell.

In this embodiment, the network device may perform communication through the network device of each neighboring cell, and determine the type of each neighboring cell. For example, information may be exchanged between enbs over an X2 interface to determine whether a neighboring cell is a cluster cell or a PS cell.

S402, receiving a second measurement result sent by the terminal device, wherein the second measurement result is obtained by the terminal device measuring a cell corresponding to each identifier in a neighbor cell list, and the neighbor cell list includes identifiers of all neighbor cells.

In this embodiment, the terminal device measures the cell corresponding to each identifier in the neighbor cell list according to the neighbor cell list, and obtains a second measurement result. The neighbor cell list includes the identifiers of all cells adjacent to the cell where the terminal device is located. And the terminal equipment sends the second measurement result to the network equipment. The network device receives the second measurement result.

S403, when the terminal equipment is a PS terminal, preferentially selecting a target cell switched by the terminal equipment from adjacent PS cells according to the type of each adjacent cell.

S404, when the terminal equipment is the trunking terminal, preferentially selecting a target cell switched by the terminal equipment from the adjacent trunking cells according to the type of each adjacent cell.

In this embodiment, when the terminal device is a PS terminal, the network device preferentially selects a cell with the best signal from the adjacent PS cells as a target cell to which the PS terminal is to be handed over, according to the type of each adjacent cell and the second measurement result. When the terminal device is a trunking terminal, the network device preferentially selects a trunking with the best signal from the adjacent trunking cells as a target cell to be switched by the trunking terminal according to the type of each adjacent cell and the second measurement result.

In this embodiment, without changing the existing neighbor list and terminal device measurement mode, the network device selects a suitable cell for the terminal device to switch according to the type of the terminal device, the type of the neighbor cell, and the neighbor measurement result of the terminal device, so that normal trunking communication of the trunking terminal can be ensured, adjustment can be made only on the network device side, and continuity of trunking services is maintained in a scenario of adopting multi-carrier trunking and PS hybrid networking.

Optionally, after receiving the RRCConnectionRelease message sent by the network device, if the RRCConnectionRelease message includes idleModeMobilityControlInfo, the terminal device stores cell reselection priority information provided by the idleModeMobilityControlInfo, where the cell reselection priority information provided by the idleModeMobilityControlInfo may include a cell selection policy corresponding to a type to which the terminal device belongs; if the RRCConnectionRelease message does not contain the idemodemobilitycontrolinfo parameter, the terminal device uses cell reselection priority information corresponding to its type from the cell reselection priority information broadcast in the system message, where the cell reselection priority information includes first reselection priority information corresponding to the PS terminal and second reselection priority information corresponding to the trunking terminal.

According to the embodiment of the invention, by adding the cluster-related parameters such as RRC signaling, SIB message, X2 interface and the like in communication between the network equipment and the terminal equipment, the cluster terminal can preferentially reside the cluster carrier in a scene of adopting multi-carrier cluster and PS mixed networking, and the cluster service continuity is further improved.

Fig. 5 is a flowchart illustrating a cell selection method according to yet another embodiment of the present invention. The execution main body of this embodiment is a terminal device, and the specific implementation of this embodiment is similar to the above embodiment that uses a network device as an execution main body shown in fig. 1, so that only brief descriptions are provided below, and no further description is provided. As shown in fig. 5, the method may include:

s501, sending a connection establishment request to a network device, wherein the connection establishment request carries cluster information and carrier aggregation information of the terminal device, the connection establishment request is used for indicating the network device to determine the type of the terminal device according to the cluster information and the carrier aggregation information of the terminal device, determine a cell selection strategy corresponding to the terminal device according to the type of the terminal device and a preset cell selection strategy, and generate configuration information according to the cell selection strategy corresponding to the terminal device.

In this embodiment, the terminal device may generate a connection establishment request carrying the self-trunking information and the carrier aggregation information, and send the connection establishment request to the network device. The network equipment receives a connection establishment request sent by the terminal equipment. The network device may determine the type of the terminal device according to the cluster information and the carrier aggregation information of the terminal device, and determine a cell selection policy corresponding to the terminal device according to the type of the terminal device and a preset cell selection policy. The network equipment generates configuration information according to the cell selection strategy corresponding to the terminal equipment and sends a configuration instruction carrying the configuration information to the terminal equipment.

S502, receiving a configuration instruction which is sent by the network equipment and carries the configuration information.

S503, cell selection is carried out according to the configuration information.

In this embodiment, the terminal device receives a configuration instruction carrying configuration information sent by the network device, and performs cell selection according to the configuration information.

Optionally, the type of the terminal device is any one of the following: the system comprises a single carrier cluster terminal, a multi-carrier cluster terminal, a single carrier PS terminal and a multi-carrier PS terminal; the preset cell selection strategy comprises the following steps:

for a single carrier PS terminal, preferentially residing in a PS cell;

Optionally, the terminal device receives a first system message which is sent by the network device and carries first reselection priority information and second reselection priority information, wherein the priority of the PS carrier in the first reselection priority information is greater than the priority of the cluster carrier, and the priority of the cluster carrier in the second reselection priority information is greater than the priority of the PS carrier;

In this embodiment, the network device may broadcast a first system message, where the first system message carries the first reselection priority information and the second reselection priority information. The terminal equipment receives a first system message broadcast by the network equipment. And when the terminal equipment is a PS terminal, the terminal equipment stores the first reselection priority information. And when the terminal equipment is the cluster terminal, the terminal equipment stores the second reselection priority information.

When the terminal equipment switches the cells, the adjacent cell measurement is needed, and the network equipment indicates the terminal equipment to switch the cells according to the measurement result of the terminal equipment. Fig. 6 is a schematic flow chart illustrating a neighboring cell measurement performed in a cell selection method according to a next embodiment of the present invention. This embodiment describes in detail a process of implementing neighbor cell measurement by a terminal device based on the embodiment in fig. 5. As shown in fig. 6, the method may further include:

s601, receiving a second system message which is sent by a network device and carries a PS neighbor cell list and a cluster neighbor cell list, wherein the PS neighbor cell list comprises the identification of each adjacent PS cell, and the cluster neighbor cell list comprises the identification of each adjacent cluster cell.

In this embodiment, the network device may perform communication through the network device of each neighboring cell, and determine the type of each neighboring cell. And the network equipment generates a PS (packet switched) neighbor cell list and a cluster neighbor cell list according to the type of each neighbor cell. And the network equipment broadcasts a second system message, wherein the second system message carries the PS neighbor list and the cluster neighbor list. And the terminal equipment receives the second system message broadcast by the network equipment.

S602, when the terminal equipment is a PS terminal, measuring the cell corresponding to each identifier in the PS neighbor cell list.

S603, when the terminal equipment is a cluster terminal, measuring the cells corresponding to each identifier in the cluster neighbor cell list.

S604, sending a first measurement result to the network device, wherein the first measurement result is used for indicating the network device to control the terminal device to perform cell switching.

In this embodiment, when the terminal device is a PS terminal, the terminal device measures a cell corresponding to each identifier in the PS neighbor cell list. And when the terminal equipment is a trunking terminal, measuring the cells corresponding to each identifier in the trunking neighbor list. And the terminal equipment sends a first measurement result obtained by measurement to the network equipment. And the network equipment receives the first measurement result and controls the terminal equipment to carry out cell switching according to the first measurement result.

In this embodiment, the neighbor list is split into the PS neighbor list and the trunking neighbor list, and the PS neighbor list and the trunking neighbor list are broadcasted through the second system message, so that the PS terminal only measures the adjacent PS cells, and selects a target cell to be switched in the adjacent PS cells, so that the trunking terminal only measures the adjacent trunking cells, and selects a target cell to be switched in the adjacent trunking cells.

Fig. 7 is a schematic flow chart illustrating a neighboring cell measurement performed in a cell selection method according to yet another embodiment of the present invention. This embodiment describes in detail a process of implementing neighbor cell measurement by a terminal device based on the embodiment in fig. 5. As shown in fig. 7, the method may further include:

s701, measuring the cells corresponding to the identifiers in the neighbor cell list to obtain a second measurement result, wherein the neighbor cell list comprises the identifiers of all the neighbor cells.

In this embodiment, the network device may perform communication through the network device of each neighboring cell, and determine the type of each neighboring cell. And the terminal equipment measures the cells corresponding to the identifiers in the neighbor cell list according to the neighbor cell list to obtain a second measurement result.

S702, sending the second measurement result to the network device, where the second measurement result is used to indicate that the network device preferentially selects a target cell to which the terminal device is switched from among adjacent PS cells according to the type of each adjacent cell when the terminal device is a PS terminal, and preferentially selects a target cell to which the terminal device is switched from among adjacent trunking cells according to the type of each adjacent cell when the terminal device is a trunking terminal.

In this embodiment, the terminal device sends the second measurement result to the network device. The network device receives the second measurement result. When the terminal equipment is a PS terminal, the network equipment preferentially selects the cell with the best signal from the adjacent PS cells as a target cell to be switched by the PS terminal according to the type of each adjacent cell and the second measurement result.

Fig. 8 is an interaction signaling diagram of a cell selection method according to another embodiment of the present invention. As shown in fig. 8, the method may include:

s801, the terminal device sends a connection establishment request to the network device. The connection establishment request carries cluster information and carrier aggregation information of the terminal device.

S802, the network equipment determines the type of the terminal equipment according to the cluster information and the carrier aggregation information of the terminal equipment.

And S803, the network equipment determines a cell selection strategy corresponding to the terminal equipment according to the type of the terminal equipment and a preset cell selection strategy.

S804, the network device generates configuration information according to the cell selection strategy corresponding to the terminal device, and sends a configuration instruction carrying the configuration information to the terminal device.

And S805, the terminal equipment selects the cell according to the configuration information.

The specific implementation of this embodiment is similar to the embodiment shown in fig. 1 and fig. 5, and is not described herein again.

Fig. 9 is a schematic structural diagram of a cell selection apparatus according to an embodiment of the present invention. As shown in fig. 9, the cell selection apparatus 90 is applied to a network device, and includes: a first receiving module 901, a first processing module 902, a second processing module 903 and a first sending module 904.

A first receiving module 901, configured to receive a connection establishment request sent by a terminal device, where the connection establishment request carries cluster information and carrier aggregation information of the terminal device.

A first processing module 902, configured to determine the type of the terminal device according to the cluster information and the carrier aggregation information of the terminal device.

A second processing module 903, configured to determine a cell selection policy corresponding to the terminal device according to the type of the terminal device and a preset cell selection policy.

A first sending module 904, configured to generate configuration information according to a cell selection policy corresponding to the terminal device, and send a configuration instruction carrying the configuration information to the terminal device, where the configuration instruction is used to instruct the terminal device to perform cell selection according to the configuration information.

In the embodiment of the invention, a first receiving module receives a connection establishment request sent by a terminal device, wherein the connection establishment request carries cluster information and carrier aggregation information of the terminal device; the first processing module determines the type of the terminal equipment according to the cluster information and the carrier aggregation information of the terminal equipment; the second processing module determines a cell selection strategy corresponding to the terminal equipment according to the type of the terminal equipment and a preset cell selection strategy; the first sending module generates configuration information according to a cell selection strategy corresponding to the terminal equipment, and sends a configuration instruction carrying the configuration information to the terminal equipment, wherein the configuration instruction is used for indicating the terminal equipment to select a cell according to the configuration information. The embodiment of the invention determines the type of the terminal equipment according to the cluster information and the carrier aggregation information of the terminal equipment, determines the cell selection strategy corresponding to the terminal equipment according to the type of the terminal equipment and the preset cell selection strategy, and can perform cell selection for the terminal equipment according to the corresponding cell selection strategy, so that the terminal equipment supporting the cluster service preferentially resides in the cluster cell, and the problem that the cluster service cannot be performed due to the mistaken residence in the PS cell is avoided.

Fig. 10 is a schematic structural diagram of a cell selection apparatus according to yet another embodiment of the present invention. As shown in fig. 10, the cell selection apparatus 90 according to this embodiment further includes, on the basis of the cell selection apparatus according to the embodiment shown in fig. 9: a second sending module 905, a first switching module 906, and a second switching module 907.

Optionally, the type of the terminal device is any one of the following: a single carrier cluster terminal, a multi-carrier cluster terminal, a single carrier Packet Service (PS) terminal and a multi-carrier PS terminal; the preset cell selection strategy comprises the following steps:

for a single carrier PS terminal, preferentially residing in a PS cell;

Optionally, the types of the terminal devices under the network device include a PS terminal and a trunking terminal, and the second sending module 905 is configured to:

Optionally, the types of the terminal devices under the network device include a PS terminal and a trunking terminal, and the first switching module 906 is configured to:

Optionally, the types of the terminal devices under the network device include a PS terminal and a trunking terminal, and the second handover module 907 is configured to:

The cell selection apparatus provided in the embodiment of the present invention may be configured to execute the method embodiment that uses the network device as an execution main body, and the implementation principle and the technical effect are similar, which are not described herein again.

Fig. 11 is a schematic structural diagram of a cell selection apparatus according to another embodiment of the present invention. As shown in fig. 11, the cell selection apparatus 110 is applied to a terminal device, and includes: a third sending module 1101, a second receiving module 1102 and a third processing module 1103.

A third sending module 1101, configured to send a connection establishment request to a network device, where the connection establishment request carries cluster information and carrier aggregation information of the terminal device; the connection establishment request is used for indicating the network equipment to determine the type of the terminal equipment according to the cluster information and the carrier aggregation information of the terminal equipment, determine a cell selection strategy corresponding to the terminal equipment according to the type of the terminal equipment and a preset cell selection strategy, and generate configuration information according to the cell selection strategy corresponding to the terminal equipment.

A second receiving module 1102, configured to receive the configuration instruction carrying the configuration information sent by the network device.

A third processing module 1103, configured to perform cell selection according to the configuration information.

The cell selection apparatus provided in the embodiment of the present invention may be configured to execute the method embodiment that uses the terminal device as an execution main body, and the implementation principle and the technical effect are similar, which are not described herein again.

Fig. 12 is a schematic structural diagram of a cell selection apparatus according to yet another embodiment of the present invention. As shown in fig. 12, the cell selection apparatus 110 according to this embodiment further includes, on the basis of the cell selection apparatus according to the embodiment shown in fig. 11: a third receiving module 1104, a third switching module 1105 and a fourth switching module 1106.

for a single carrier PS terminal, preferentially residing in a PS cell;

Optionally, the third receiving module 1104 is configured to:

when the terminal equipment is a PS terminal and the terminal equipment is a PS terminal, the first reselection priority information is stored;

and when the terminal equipment is a cluster terminal and the terminal equipment is a cluster terminal, storing the second reselection priority information.

Optionally, the third switching module 1105 is configured to:

when the terminal equipment is a PS terminal and the terminal equipment is a PS terminal, measuring cells corresponding to each identifier in the PS neighbor cell list;

when the terminal equipment is a trunking terminal and the terminal equipment is a trunking terminal, measuring cells corresponding to each identifier in a trunking neighbor cell list;

Optionally, the fourth switching module 1106 is configured to:

Fig. 13 is a schematic hardware structure diagram of a network device according to an embodiment of the present invention. As shown in fig. 13, the network device 130 provided in this embodiment includes: at least one processor 1301 and memory 1302. The network device 130 also includes a communication component 1303. The processor 1301, the memory 1302, and the communication unit 1303 are connected by a bus 1304.

In particular implementations, the at least one processor 1301 executes the computer executable instructions stored by the memory 1302 to cause the at least one processor 1301 to perform the cell selection method as applied to a network device.

For a specific implementation process of the processor 1301, reference may be made to the above method embodiments, which have similar implementation principles and technical effects, and details are not described herein again.

In the embodiment shown in fig. 13, it should be understood that the Processor may be a Central Processing Unit (CPU), other general-purpose processors, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor, or in a combination of the hardware and software modules within the processor.

The memory may comprise high speed RAM memory and may also include non-volatile storage NVM, such as at least one disk memory.

The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, the buses in the figures of the present application are not limited to only one bus or one type of bus.

Fig. 14 is a schematic diagram of a hardware structure of a terminal device according to still another embodiment of the present invention. As shown in fig. 14, the terminal device 140 provided in the present embodiment includes: at least one processor 1401, and memory 1402. The terminal device 140 further comprises a communication component 1403. The processor 1401, the memory 1402, and the communication unit 1403 are connected by a bus 1404.

In a specific implementation, the at least one processor 1401 executes the computer executable instructions stored by the memory 1402 to cause the at least one processor 1401 to perform a cell selection method as applied to a terminal device as described above.

For a specific implementation process of the processor 1401, reference may be made to the above method embodiments, which implement similar principles and technical effects, and this embodiment is not described herein again.

In the embodiment shown in fig. 14, it should be understood that the Processor may be a Central Processing Unit (CPU), other general purpose processors, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor, or in a combination of the hardware and software modules within the processor.

The present application also provides a computer-readable storage medium having stored therein computer-executable instructions that, when executed by a processor, implement the cell selection method as applied to a network device.

The computer-readable storage medium may be implemented by any type of volatile or non-volatile memory device or combination thereof, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk. Readable storage media can be any available media that can be accessed by a general purpose or special purpose computer.

An exemplary readable storage medium is coupled to the processor such the processor can read information from, and write information to, the readable storage medium. Of course, the readable storage medium may also be an integral part of the processor. The processor and the readable storage medium may reside in an Application Specific Integrated Circuits (ASIC). Of course, the processor and the readable storage medium may also reside as discrete components in the apparatus.

The present application also provides a computer-readable storage medium having stored therein computer-executable instructions that, when executed by a processor, implement the cell selection method as applied to a terminal device.

Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

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

2. The method according to claim 1, wherein the type of the terminal device is any one of the following: a single carrier cluster terminal, a multi-carrier cluster terminal, a single carrier Packet Service (PS) terminal and a multi-carrier PS terminal; the preset cell selection strategy comprises the following steps:

for a single carrier PS terminal, preferentially residing in a PS cell;

3. The method of claim 1, wherein the types of terminal devices under the network device include PS terminals and trunking terminals, and wherein the method further comprises:

4. The method according to any of claims 1 to 3, wherein the types of terminal devices under the network device include PS terminals and trunking terminals, and the method further comprises:

5. The method according to any of claims 1 to 3, wherein the types of terminal devices under the network device include PS terminals and trunking terminals, and the method further comprises:

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

and selecting the cell according to the configuration information.

7. The method according to claim 6, wherein the type of the terminal device is any one of the following: the system comprises a single carrier cluster terminal, a multi-carrier cluster terminal, a single carrier PS terminal and a multi-carrier PS terminal; the preset cell selection strategy comprises the following steps:

for a single carrier PS terminal, preferentially residing in a PS cell;

8. The method of claim 6, further comprising:

9. The method according to any one of claims 6 to 8, further comprising:

10. The method according to any one of claims 6 to 8, further comprising:

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

12. The apparatus of claim 11, wherein the type of the terminal device is any one of the following: a single carrier cluster terminal, a multi-carrier cluster terminal, a single carrier Packet Service (PS) terminal and a multi-carrier PS terminal; the preset cell selection strategy comprises the following steps:

for a single carrier PS terminal, preferentially residing in a PS cell;

13. The apparatus of claim 11, wherein the types of the terminal devices under the network device include a PS terminal and a trunking terminal, and the apparatus further comprises a second sending module, and the second sending module is configured to:

14. The apparatus according to any one of claims 11 to 13, wherein the types of terminal devices under the network device include a PS terminal and a trunking terminal, and the apparatus further comprises a first switching module, and the first switching module is configured to:

15. The apparatus according to any one of claims 11 to 13, wherein the types of the terminal devices under the network device include a PS terminal and a trunking terminal, and the apparatus further comprises a second handover module, and the second handover module is configured to:

16. A cell selection apparatus, applied to a terminal device, the apparatus comprising:

17. The apparatus of claim 16, wherein the type of the terminal device is any one of the following: the system comprises a single carrier cluster terminal, a multi-carrier cluster terminal, a single carrier PS terminal and a multi-carrier PS terminal; the preset cell selection strategy comprises the following steps:

for a single carrier PS terminal, preferentially residing in a PS cell;

18. The apparatus of claim 16, further comprising a third receiving module configured to:

19. The apparatus according to any one of claims 16 to 18, further comprising a third switching module configured to:

20. The apparatus according to any one of claims 16 to 18, further comprising a fourth switching module configured to:

21. A network device, comprising: at least one processor and memory;

the memory stores computer-executable instructions;

the at least one processor executing the memory stored computer-executable instructions causes the at least one processor to perform the cell selection method of any of claims 1 to 5.

22. A terminal device, comprising: at least one processor and memory;

the memory stores computer-executable instructions;

the at least one processor executing the memory stored computer-executable instructions causes the at least one processor to perform the cell selection method of any of claims 6 to 10.

23. A computer-readable storage medium having stored thereon computer-executable instructions which, when executed by a processor, implement the cell selection method of any one of claims 1 to 5.

24. A computer-readable storage medium having stored thereon computer-executable instructions which, when executed by a processor, implement the cell selection method of any one of claims 6 to 10.