CN110913454A - Cell determination method and terminal equipment - Google Patents
Cell determination method and terminal equipment Download PDFInfo
- Publication number
- CN110913454A CN110913454A CN201911097009.8A CN201911097009A CN110913454A CN 110913454 A CN110913454 A CN 110913454A CN 201911097009 A CN201911097009 A CN 201911097009A CN 110913454 A CN110913454 A CN 110913454A
- Authority
- CN
- China
- Prior art keywords
- cell
- network
- identifier
- terminal device
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/02—Access restriction performed under specific conditions
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
Abstract
The embodiment of the invention discloses a cell determining method and terminal equipment, relates to the technical field of communication, and aims to solve the problem of low call completing rate of the terminal equipment. The method comprises the following steps: under the condition that a CSFB (Circuit switched fallback) allowed response message sent by network equipment is not received within a preset time length, initiating a network searching request carrying a first identifier, wherein the first identifier is used for indicating that a blacklisted cell is excluded when a resident cell is selected; acquiring at least one cell according to the network searching request; and determining one cell except the blacklisted cell in the at least one cell as the resident cell. The method can be applied to a scene that a response message allowing CSFB and sent by the network equipment is not received within a preset time length.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a cell determining method and terminal equipment.
Background
Circuit Switched Fallback (CSFB) is a mainstream voice service solution. Specifically, when the called terminal device is in standby in one network (e.g., a fourth generation wireless communication network), if a paging message sent by the network device is received, the called terminal device may fall back to another network (e.g., a second generation wireless communication network or a third generation wireless communication network) to perform a call, and after the call is ended, the called terminal device may return to the previous network again.
Currently, there are many situations that may cause the terminating device in CSFB to fail to be called. In order to improve the call completing rate of the called terminal device, the called terminal device usually adds the abnormal cell to the blacklist after the called terminal device fails. Therefore, when the called terminal device receives the paging message sent by the network device next time, if the response message based on the CSFB request message sent by the called terminal device is received, the called terminal device can perform judgment according to the blacklist, so that the called terminal device does not reside in the abnormal cell in the blacklist.
However, when the called terminal device receives the paging message sent by the network device, if a response message sent by the network device and based on the CSFB request message sent by the called terminal device is not received, the called terminal device does not perform determination according to the blacklist, and may reside in an abnormal cell in the blacklist, so that a subsequent call is still executed in the abnormal cell, and the call completing rate of the called terminal device is reduced.
Disclosure of Invention
The embodiment of the invention provides a cell determining method and terminal equipment, and aims to solve the problem of low call completing rate of called terminal equipment.
In order to solve the above technical problem, the embodiment of the present invention is implemented as follows:
in a first aspect, an embodiment of the present invention provides a cell determination method. The method comprises the following steps: under the condition that a CSFB (Circuit switched fallback) allowed response message sent by network equipment is not received within a preset time length, initiating a network searching request carrying a first identifier, wherein the first identifier is used for indicating that a blacklisted cell is excluded when a resident cell is selected; acquiring at least one cell according to the network searching request; and determining one cell except the blacklisted cell in the at least one cell as the resident cell.
In a second aspect, an embodiment of the present invention provides a terminal device. The terminal equipment comprises a processing module, an obtaining module and a determining module. The processing module is used for initiating a network searching request carrying a first identifier under the condition that a CSFB (Circuit switched fallback) allowed response message sent by network equipment is not received within a preset time length, wherein the first identifier is used for indicating that a blacklisted cell is excluded when a resident cell is selected; the acquisition module is used for acquiring at least one cell according to the network searching request initiated by the processing module; a determining module, configured to determine, as a camped cell, one cell of the at least one cell acquired by the acquiring module except the blacklist cell.
In a third aspect, an embodiment of the present invention provides a terminal device, which includes 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 determination method provided in the first aspect.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the cell determination method provided in the first aspect.
In the embodiment of the present invention, the called terminal device may initiate a network searching request carrying the first identifier, when a CSFB allowed response message sent by the network device is not received within a preset time length; acquiring at least one cell according to the network searching request; and determining one cell except the blacklisted cell in the at least one cell as a resident cell. Wherein the first identifier is used to indicate exclusion of blacklisted cells when selecting the camped cell. By the scheme, when the called terminal equipment receives the paging message sent by the network equipment, if the called terminal equipment does not receive the CSFB response message allowed and sent by the network equipment within the preset time length, the called terminal equipment can initiate the network searching request carrying the identifier of the blacklisted cell to be excluded, so that when the resident cell is determined, the called terminal equipment can exclude the blacklisted cell according to the identifier, and the called terminal equipment can be prevented from being resident in the blacklisted cell. Therefore, the embodiment of the invention can improve the call completing rate of the called terminal equipment.
Drawings
Fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a cell determination method according to an embodiment of the present invention;
fig. 3 is a second schematic diagram illustrating a cell determination method according to an embodiment of the present invention;
fig. 4 is a third schematic diagram illustrating a cell determination method according to an embodiment of the present invention;
fig. 5 is a fourth schematic diagram illustrating a cell determination method according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;
fig. 7 is a second schematic structural diagram of a terminal device according to an embodiment of the present invention;
fig. 8 is a third schematic structural diagram of a terminal device according to an embodiment of the present invention;
fig. 9 is a hardware schematic diagram of a terminal 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 an association relationship 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. The symbol "/" herein denotes a relationship in which the associated object is or, for example, a/B denotes a or B.
The terms "first" and "second," and the like, in the description and in the claims of the present invention are used for distinguishing between different objects and not for describing a particular order of the objects. For example, the first identifier, the second identifier, etc. are used to distinguish between different identifiers, rather than to describe a particular order of identifiers.
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 should not be construed as 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 description of the embodiments of the present invention, unless otherwise specified, "a plurality" means two or more, for example, a plurality of elements means two or more elements, and the like.
Some terms/nouns referred to in the embodiments of the present invention are explained below.
CSFB is a mainstream voice service solution. Specifically, when the called terminal device is in standby in the first network, if the paging message sent by the network device is received, the called terminal device may fall back to the second network for conversation, and after the conversation is over, the called terminal device may return to the previous network again. The first network may be a next generation network of the second network or an upgrade network of the second network. For example, the first network may be a fifth Generation wireless communication (5-Generation, 5G) network, and the second network may be a third Generation wireless communication (3-Generation, 3G) network or a second Generation wireless communication (2-Generation, 2G) network; alternatively, the first network may be a fourth Generation wireless communication (4G) network and the second network may be a 3G network or a 2G network.
The embodiment of the invention provides a cell determining method and terminal equipment, wherein a called terminal equipment can initiate a network searching request carrying a first identifier under the condition that a CSFB (Circuit switched fallback) allowed response message sent by network equipment is not received within a preset time length; acquiring at least one cell according to the network searching request; and determining one cell except the blacklisted cell in the at least one cell as a resident cell. Wherein the first identifier is used to indicate exclusion of blacklisted cells when selecting the camped cell. By the scheme, when the called terminal equipment receives the paging message sent by the network equipment, if the called terminal equipment does not receive the CSFB response message allowed and sent by the network equipment within the preset time length, the called terminal equipment can initiate the network searching request carrying the identifier of the blacklisted cell to be excluded, so that when the resident cell is determined, the called terminal equipment can exclude the blacklisted cell according to the identifier, and the called terminal equipment can be prevented from being resident in the blacklisted cell. Therefore, the embodiment of the invention can improve the call completing rate of the called terminal equipment.
The cell determining method and the terminal device provided by the embodiment of the invention can be applied to a communication system. Fig. 1 is a schematic diagram illustrating a network architecture of a possible communication system according to an embodiment of the present invention. Wherein the communication system comprises at least one terminal 10, one base station 20 and one base station 30, and one core network device 40, and each base station 20 or base station 30 may communicate with one or more terminals 10. In practical applications, the connection between the above devices may be a wireless connection.
It should be noted that fig. 1 described above can be specifically applied to CSFB. For convenience of intuitively representing the connection relationship between the respective devices, the solid line in fig. 1 refers to a network to which the terminal device is currently connected, such as a 5G network or a 4G network; the dashed line refers to the network, e.g. the 3G network or the 2G network, to which the terminal device is about to fall back.
In the embodiment of the present invention, the base station may include various forms of macro base stations, micro base stations, relay stations, access points, and the like. In systems using different radio access technologies, the names of devices that function as base stations may differ. For example, in a 5G system, it may be referred to as a 5G base station (gNB); in a 4G system, such as a Long Term Evolution (LTE) system, it may be referred to as an evolved NodeB (eNB); in a 3G system, it may be referred to as a base station (Node B). As communication technology evolves, the name "base station" may change.
The terminal device in the embodiment of the invention can be a mobile terminal device and can also be a non-mobile terminal device. For example, the mobile terminal device may be a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and the non-mobile terminal device may be a Personal Computer (PC), a Television (TV), a teller machine or a self-service machine, and the like, and the embodiment of the present invention is not particularly limited.
The execution subject of the cell determining method provided in the embodiment of the present invention may be the terminal device, or may also be a functional module and/or a functional entity capable of implementing the cell determining method in the terminal device, which may be specifically determined according to actual use requirements, and the embodiment of the present invention is not limited. The following takes a terminal device as an example to exemplarily explain the cell determination method provided by the embodiment of the present invention.
In the embodiment of the invention, after the called party fails, the called terminal equipment usually adds the abnormal cell into the blacklist. When a called terminal device receives a paging message sent by a network device, if a response message sent by the network device and based on a CSFB request message sent by the called terminal device is not received, in order to improve the call completing rate of the called terminal device, the embodiment of the invention provides the following cell determining method.
As shown in fig. 2, an embodiment of the present invention provides a cell determination method. The method can be applied to terminal equipment. The method may include S101 to S103 described below.
S101, under the condition that the terminal equipment does not receive a response message which allows CSFB and is sent by the network equipment within a preset time length, the terminal equipment initiates a network searching request carrying a first identifier.
The first identifier may be used to indicate that the terminal device excludes the blacklisted cell when selecting the camping cell.
It should be noted that the terminal device is a called terminal device. The network device may be a network device in which the terminal device currently resides in a cell, for example, the network device may be a base station 20 or a core network device 40 as shown in fig. 1.
In the embodiment of the present invention, the blacklisted cell may refer to an abnormal cell, that is, a cell which causes a called failure of the terminal device in the CSFB and is marked to be added to the blacklist.
Optionally, the preset time period may be any one of the following: protocol specified, vendor pre-configured, network device configured, terminal device configured.
Optionally, the terminal device may be provided with a timer, and may determine whether the preset duration is reached through timing of the timer. For example: the timer may be T3417ext or other possible timers, etc.
For example, the preset time duration is taken as 4 seconds specified by the protocol. For example, when the timer T3417ext reaches 4 seconds, if the terminal device does not receive a CSFB allowed response message sent by the network device, the terminal device initiates a network searching request carrying the first identifier.
Optionally, the CSFB allowed response message may be used to indicate that the terminal device is allowed to perform CSFB.
Alternatively, the first identifier may be a value of a field, and the first field may be defined by a protocol or set by a network.
For example, the first flag may be a value of a field flag. The first mode is that when the flag is 1, the terminal device is instructed to exclude the blacklisted cell when selecting the camping cell. And the second mode is that when the flag is 0, the terminal equipment is indicated to exclude the blacklisted cell when selecting the resident cell. The embodiments of the present invention are not limited.
Optionally, the number of the blacklisted cells may be at least one.
Optionally, the blacklisted cell may be a cell in a blacklist. The blacklist may be stored in the terminal device or shared with the terminal device for other devices.
Optionally, the network searching request may be initiated by a higher layer of the terminal device. For example, the higher layer may be a non-access stratum (NAS) layer or other possible higher layer of the terminal device.
And S102, the terminal equipment acquires at least one cell according to the network searching request.
It should be noted that the at least one cell is all cells searched by the terminal device according to the network searching request.
Optionally, the at least one cell is obtained for a bottom layer of the terminal device.
Optionally, in the case that a high-level layer of the terminal device initiates a network searching request, the step S102 may specifically be: and the bottom layer of the terminal equipment acquires at least one cell according to a network searching request which is initiated by the high layer of the terminal equipment and carries the first identifier.
For example, the bottom layer of the terminal device may be a GPRS radio resource management (GRR) layer or other possible bottom layers.
S103, the terminal equipment determines one cell except the blacklisted cell in the at least one cell as a resident cell.
It should be noted that the blacklisted cell refers to a blacklisted cell of all the called terminal devices.
Optionally, the blacklisted cells of all the called terminal devices may be a specific cell set, for example, a blacklist. The specific cell set is used for the terminal device to exclude the blacklisted cells from all the searched cells so as to determine the resident cells.
Optionally, when the number of the cells searched by the terminal device is at least two, the terminal device may determine the camping cell through any one of the following possible implementation manners:
in a first possible implementation manner, after the terminal device searches for at least two cells, the terminal device may sort the at least two cells according to the signal strength, and sequentially compare each cell with all blacklisted cells in a specific cell set according to the order from strong to weak of the signal strength. If one cell does not belong to the specific cell set, the terminal device may determine the one cell as a cell to camp on, i.e., a camping cell; if a cell belongs to the specific cell set, the terminal device may compare the next cell after the cell with all blacklisted cells in the specific cell set, and repeat the above determination step.
Exemplarily, it is assumed that the cells searched by the terminal device are sorted according to the signal strength, and are cell a, cell B, cell C, cell D, and cell E in turn; and the blacklist includes cell a and cell F. The terminal device may compare the cell a with all cells in the blacklist, and the terminal device may exclude the cell a because the cell a belongs to the blacklist. Then, the terminal device may compare the cell B with all cells in the blacklist, and since the cell B does not belong to the blacklist, the terminal device may determine the cell B as the cell to camp on soon.
In a second possible implementation manner, after the terminal device searches for at least two cells, the terminal device may sort the at least two cells according to signal strength, and exclude blacklisted cells belonging to a specific cell set in the at least two cells. Then, the terminal device may determine a cell with the strongest signal strength among cells other than the excluded cell of the at least two cells as a cell to camp on, i.e., a camping cell.
Exemplarily, it is assumed that the cells searched by the terminal device are sorted according to the signal strength, and are cell a, cell B, cell C, cell D, and cell E in turn; and the blacklist includes cell a and cell F. The terminal device may compare the searched 5 cells with all the cells in the blacklist and exclude cell a in the blacklist. Then, the terminal device determines the cell B with the strongest signal strength among the cell B, the cell C, the cell D, and the cell E as the cell to be camped on.
In a third possible implementation manner, after the terminal device searches for at least two cells, the terminal device may exclude blacklisted cells belonging to a specific cell set from the at least two cells. Then, the terminal device may rank the cells of the at least two cells except the excluded cell according to the signal strength, and determine the cell with the strongest signal strength among the cells of the at least two cells except the excluded cell as the cell to camp on, i.e., the camping cell.
For example, it is assumed that the cells searched by the terminal device are cell a, cell B, cell C, cell D, and cell E, and the blacklist includes cell a and cell F. The terminal device may compare the searched 5 cells with all the cells in the blacklist and exclude cell a in the blacklist. Then, the terminal device may sort the cell B, the cell C, the cell D, and the cell E according to the signal strength, and determine the cell B with the strongest signal strength among the cell B, the cell C, the cell D, and the cell E as the cell to be camped on.
It should be noted that, all of the three possible implementations described above are to rank the cells according to their signal strengths, and do not form any limitation on the embodiments of the present invention. It can be understood that, in actual implementation, the terminal device may also rank the cells in other manners, which may be specifically determined according to actual usage requirements.
Optionally, the method for determining a cell provided in the embodiment of the present invention may further include: under the condition that a response message which allows CSFB and is sent by network equipment is received within a preset time length, terminal equipment initiates a network searching request which does not carry the first identifier; acquiring at least one cell according to the network searching request; and determining one cell except the blacklisted cell in the at least one cell as the resident cell.
For example, the preset time duration is still set to be 4 seconds specified by the protocol. When the timing duration of the timer T3417ext reaches 4 seconds, if the terminal device receives a response message that allows CSFB sent by the network device, the NAS layer of the terminal device may trigger the GRR layer of the terminal device to perform network search through a network search request that does not carry the first identifier. Thus, the GRR layer may search for at least one first cell according to the network search request, and directly determine a cell of the at least one first cell except for the cells in the blacklist as a camped cell.
For example, the preset time duration is still set to be 4 seconds specified by the protocol. When the timing duration of the timer T3417ext reaches 4 seconds, if the terminal device does not receive a response message allowing CSFB sent by the network device, the NAS layer of the terminal device may trigger the GRR layer of the terminal device to perform network search through the network search request carrying the first identifier. Thus, the GRR layer may search for at least one second cell according to the network search request, and directly determine a cell other than the blacklisted cells in the at least one second cell as a camped cell.
It should be noted that the first cell and the second cell may be the same cell or different cells, and may be determined specifically according to actual use requirements.
The embodiment of the invention provides a cell determining method, because when a called terminal device receives a paging message sent by a network device, if the called terminal device does not receive a CSFB response message which is allowed to be sent by the network device within a preset time length, the called terminal device can initiate a network searching request carrying an identifier for excluding a blacklisted cell, when a resident cell is determined, the called terminal device can exclude the blacklisted cell according to the identifier, thereby avoiding the called terminal device from residing in the blacklisted cell. Therefore, the embodiment of the invention can improve the call completing rate of the called terminal equipment.
Optionally, with reference to fig. 2, as shown in fig. 3, before the step S101, the method for determining a cell according to the embodiment of the present invention may further include the step S104 described below.
And S104, the terminal equipment sends a request message carrying the second identifier to the network equipment and starts timing.
The second identifier may be used to request a CSFB, that is, to indicate that the terminal device subsequently has an incoming call.
Optionally, the REQUEST message may be an EXTENDED SERVICE REQUEST message, and the second identifier may be a mobile terminal circuit switched fallback.
Optionally, the start timing is specifically a timer of the terminal device, for example, the timer may be a timer T3417 ext.
Alternatively, S104 may be specifically implemented by S104A described below.
And S104A, under the condition that the third identifier is matched with the fourth identifier stored in the terminal equipment, the terminal equipment sends a request message carrying the second identifier to the network equipment, and starts timing.
The third identifier may be used to indicate a called device, and the fourth identifier may be used to indicate a terminal device.
Optionally, the third identifier may be a temporary mobile subscriber identifier (M-TMSI).
Optionally, the third identifier may be obtained from a paging message received by the terminal device, that is, the third identifier may be carried in the paging message received by the terminal device.
Optionally, the fourth identifier may be an identifier allocated by the network device to the terminal device after the terminal device registers in the network corresponding to the first cell, for example, the identifier may be M-TMSI.
On one hand, the cell determining method provided by the embodiment of the invention enables the network device to prepare for subsequent call access of the terminal device by sending the request message carrying call drop back to the network device by the terminal device, so that the terminal device can perform CSFB; on the other hand, the terminal device can initiate a network searching request carrying the first identifier when the terminal device does not receive the CSFB allowed response message sent by the network device within the preset time period by timing, so that the terminal device can be prevented from residing in the blacklisted cell.
Optionally, when the above S104 is specifically implemented by the following S104A, as shown in fig. 4 in combination with fig. 3, before the above S104A, the method for determining a cell provided in the embodiment of the present invention may further include the following S105.
And S105, under the condition that the terminal equipment resides in the first cell, the terminal equipment receives the paging message which is sent by the network equipment and carries the third identifier.
It should be noted that the first cell may be a cell where the terminal device currently resides, that is, a cell where the terminal device resides before the CSFB.
In addition, the network device in S105 and the network device in S101 may be the same device, that is, the network device of the first cell where the terminal device currently resides.
Optionally, the method for determining a cell provided in the embodiment of the present invention may further include: in case the third identity does not match the fourth identity stored in the terminal device, the terminal device ignores the paging message.
For example, in a case where the terminal device is camped on the first cell, i.e., in a standby state, the terminal device may receive a paging message carrying an M-TMSI for indicating a called device, which is sent by a base station of the first cell. When the M-TMSI in the paging message is consistent with the M-TMSI stored in the terminal device, the terminal device may consider that the paging message is sent to the local device, so that the terminal device may send a request message carrying a second identifier to the network device and start timing; otherwise, the terminal device may consider that the paging message is not sent to the terminal device, and may ignore the paging message.
In the cell determining method provided by the embodiment of the present invention, the network device sends the paging message carrying the third identifier to the terminal device, so that the terminal device determines whether the paging message is sent to the local device by determining whether the third identifier is consistent with the fourth identifier stored in the terminal device, and further determines whether the terminal device is a called terminal device.
Optionally, with reference to fig. 2, as shown in fig. 5, after S103, the method for determining a cell according to the embodiment of the present invention may further include S106 described below.
And S106, the terminal equipment falls back to the second network from the first network.
The first network may be a network corresponding to a first cell, and the second network may be a network corresponding to a camped cell determined by the terminal device.
Optionally, the first network may be an mth generation wireless communication network, M is an integer greater than or equal to 4, and the first network may belong to a communication network that cancels a circuit domain; the second network may be an nth generation wireless communication network, N being 2 or 3, and may belong to a communication network in which a circuit domain exists.
For example, assume that the network corresponding to the first cell in which the terminal device currently camps is a 4G network. After the terminal device determines that the network corresponding to the resident cell is the GSM network, the terminal device may fall back to the GSM network from the 4G network, that is, the terminal device falls back to the GSM network and resides in the GSM cell.
Optionally, after the terminal device falls back from the first network to the second network, the terminal device may connect to the call.
According to the cell determining method provided by the embodiment of the invention, when the terminal equipment falls back to the second network from the first network, namely, after the terminal equipment is accessed to the resident cell, the terminal equipment can be communicated, so that a called user of the terminal equipment can be communicated with a calling user.
It should be noted that, in the embodiment of the present invention, the cell determination methods shown in the above drawings are all exemplarily described by referring to one drawing in the embodiment of the present invention. In specific implementation, the cell determination method shown in each of the above figures may also be implemented in combination with any other combinable figures shown in the above embodiments, and details are not described here again.
As shown in fig. 6, an embodiment of the present invention provides a terminal device 600. The terminal device may comprise a processing module 601, an obtaining module 602 and a determining module 603. The processing module 601 may be configured to initiate a network searching request carrying the first identifier when a CSFB permission response message sent by the network device is not received within a preset time. The obtaining module 602 may be configured to obtain at least one cell according to the network searching request initiated by the processing module 601. The determining module 603 may be configured to determine, as the camped cell, one of the at least one cell acquired by the acquiring module 602 except for the blacklisted cell. Wherein the first identity may be used to indicate exclusion of blacklisted cells when selecting the camped cell.
Optionally, with reference to fig. 6, as shown in fig. 7, the terminal device provided in the embodiment of the present invention may further include a sending module 604. A sending module 604, configured to send a request message carrying a second identifier to the network device before the processing module 601 initiates a network searching request carrying the first identifier. The processing module 601 is configured to start timing after the sending module 604 sends the request message carrying the second identifier to the network device. Wherein the second identity is used to request the CSFB.
It should be noted that, in the embodiment of the present invention, the starting time of starting timing may be a time when the request message carrying the second identifier is sent to the network device, or may be a next adjacent time when the request message carrying the second identifier is sent to the network device.
Optionally, with reference to fig. 7, as shown in fig. 8, the terminal device provided in the embodiment of the present invention may further include a receiving module 605. The receiving module 605 may be configured to receive, when the terminal device is camped in the first cell, a paging message that is sent by the network device and carries the third identifier before the sending module 604 sends the request message carrying the second identifier to the network device. The sending module 604 may be specifically configured to send, to the network device, a request message carrying the second identifier when the third identifier matches a fourth identifier stored in the terminal device. The third identifier may be used to indicate a called device, and the fourth identifier may be used to indicate a terminal device.
Optionally, the processing module 601 may be further configured to control the terminal device to fall back from the first network to the second network after the determining module 603 determines, as the camped cell, one of the at least one cell acquired by the acquiring module 602 except for the blacklisted cell. The first network may be a network corresponding to the first cell, and the second network may be a network corresponding to the camping cell determined by the terminal device.
Optionally, the network searching request may be initiated by a higher layer of the terminal device. The at least one cell is acquired for a bottom layer of the terminal device.
Optionally, the preset time period may be any one of the following: protocol specified, vendor pre-configured, network device configured, terminal device configured.
The terminal device provided by the embodiment of the present invention can implement each process implemented by the terminal device in the above method embodiments, and is not described here again to avoid repetition.
The embodiment of the invention provides a terminal device, because when a called terminal device receives a paging message sent by a network device, if the called terminal device does not receive a CSFB response message which is allowed and sent by the network device within a preset time length, the called terminal device can initiate a network searching request carrying an identifier for excluding a blacklist cell, when a resident cell is determined, the called terminal device can exclude the blacklist cell according to the identifier, thereby avoiding the called terminal device from residing in the blacklist cell. Therefore, the embodiment of the invention can improve the call completing rate of the called terminal equipment.
Fig. 9 is a schematic diagram of a hardware structure of a terminal device for implementing various embodiments of the present invention. As shown in fig. 9, the terminal device 200 includes, but is not limited to: radio frequency unit 201, network module 202, audio output unit 203, input unit 204, sensor 205, display unit 206, user input unit 207, interface unit 208, memory 209, processor 210, and power supply 211. Those skilled in the art will appreciate that the terminal device configuration shown in fig. 9 does not constitute a limitation of the terminal device, and that the terminal device may include more or fewer components than shown, or combine certain components, or a different arrangement of components. In the embodiment of the present invention, the terminal device includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal device, a wearable device, a pedometer, and the like.
The processor 210 is configured to initiate a network searching request carrying a first identifier when a response message allowing circuit switched fallback and sent by a network device is not received within a preset time length, where the first identifier is used to indicate that a blacklisted cell is excluded when a camped cell is selected; acquiring at least one cell according to the initiated network searching request; and determining one cell except the blacklisted cell in the at least one cell as a resident cell.
The embodiment of the invention provides a terminal device, because when a called terminal device receives a paging message sent by a network device, if the called terminal device does not receive a CSFB response message which is allowed and sent by the network device within a preset time length, the called terminal device can initiate a network searching request carrying an identifier for excluding a blacklist cell, when a resident cell is determined, the called terminal device can exclude the blacklist cell according to the identifier, thereby avoiding the called terminal device from residing in the blacklist cell. Therefore, the embodiment of the invention can improve the call completing rate of the called terminal equipment.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 201 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 210; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 201 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 201 can also communicate with a network and other devices through a wireless communication system.
The terminal device 200 provides the user with wireless broadband internet access through the network module 202, such as helping the user send and receive e-mails, browse web pages, access streaming media, and the like.
The audio output unit 203 may convert audio data received by the radio frequency unit 201 or the network module 202 or stored in the memory 209 into an audio signal and output as sound. Also, the audio output unit 203 may also provide audio output related to a specific function performed by the terminal apparatus 200 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 203 includes a speaker, a buzzer, a receiver, and the like.
The input unit 204 is used to receive an audio or video signal. The input unit 204 may include a Graphics Processing Unit (GPU) 2041 and a microphone 2042, and the graphics processor 2041 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 206. The image frames processed by the graphic processor 2041 may be stored in the memory 209 (or other storage medium) or transmitted via the radio frequency unit 201 or the network module 202. The microphone 2042 may receive sound and may be capable of processing such sound 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 201 in case of a phone call mode.
The terminal device 200 further comprises at least one sensor 205, such as light sensors, motion sensors and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 2061 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 2061 and/or the backlight when the terminal apparatus 200 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal device posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 205 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 206 is used to display information input by the user or information provided to the user. The display unit 206 may include a display panel 2061, and the display panel 2061 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 207 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 device. Specifically, the user input unit 207 includes a touch panel 2071 and other input devices 2072. Touch panel 2071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 2071 (e.g., user operation on or near the touch panel 2071 using a finger, a stylus, or any other suitable object or attachment). The touch panel 2071 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 210, and receives and executes commands sent by the processor 210. In addition, the touch panel 2071 may be implemented by using various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The user input unit 207 may include other input devices 2072 in addition to the touch panel 2071. In particular, the other input devices 2072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not further described herein.
Further, a touch panel 2071 may be overlaid on the display panel 2061, and when the touch panel 2071 detects a touch operation on or near the touch panel 2071, the touch panel is transmitted to the processor 210 to determine the type of the touch event, and then the processor 210 provides a corresponding visual output on the display panel 2061 according to the type of the touch event. Although the touch panel 2071 and the display panel 2061 are shown as two separate components in fig. 9, in some embodiments, the touch panel 2071 and the display panel 2061 may be integrated to implement the input and output functions of the terminal device, which is not limited herein.
The interface unit 208 is an interface for connecting an external device to the terminal apparatus 200. 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 208 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 apparatus 200 or may be used to transmit data between the terminal apparatus 200 and the external device.
The memory 209 may be used to store software programs as well as various data. The memory 209 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 for 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 209 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 210 is a control center of the terminal device, connects various parts of the entire terminal device by using various interfaces and lines, and performs various functions of the terminal device and processes data by running or executing software programs and/or modules stored in the memory 209 and calling data stored in the memory 209, thereby performing overall monitoring of the terminal device. Processor 210 may include one or more processing units; optionally, the processor 210 may integrate an application processor and a modem processor, wherein the application processor mainly handles operating systems, user interfaces, application programs, and the like, and the modem processor mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 210.
In addition, the terminal device 200 includes some functional modules that are not shown, and are not described in detail here.
Optionally, an embodiment of the present invention further provides a terminal device, which includes the processor 210 shown in fig. 9, the memory 209, and a computer program stored in the memory 209 and capable of running on the processor 210, where the computer program, when executed by the processor 210, implements the processes of the foregoing method embodiment, and can achieve the same technical effect, and details are not described here to avoid repetition.
The 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 processes of the method embodiments, and can achieve the same technical effects, and in order to avoid repetition, the details are not repeated here. Examples of the computer-readable storage medium include a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk and an 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 solutions 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 device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method described in 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 (10)
1. A cell determination method is applied to a terminal device, and is characterized in that the method comprises the following steps:
initiating a network searching request carrying a first identifier under the condition that a response message which is sent by network equipment and allows circuit switched fallback is not received within a preset time length, wherein the first identifier is used for indicating that a blacklisted cell is excluded when a resident cell is selected;
acquiring at least one cell according to the network searching request;
and determining one cell except the blacklisted cell in the at least one cell as a resident cell.
2. The method according to claim 1, wherein before initiating the network searching request carrying the first identifier, the method further comprises:
sending a request message carrying a second identifier to the network equipment, and starting timing;
wherein the second identifier is used for requesting circuit domain fallback.
3. The method according to claim 2, wherein before sending the request message carrying the second identifier to the network device and starting timing, the method further comprises:
receiving a paging message which is sent by the network equipment and carries a third identifier under the condition that the terminal equipment is resident in the first cell;
the sending a request message carrying a second identifier to the network device and starting timing includes:
under the condition that the third identifier is matched with a fourth identifier stored in the terminal equipment, sending the request message carrying the second identifier to the network equipment, and starting timing;
the third identifier is used for indicating a called device, and the fourth identifier is used for indicating the terminal device.
4. The method of claim 1, wherein after determining one of the at least one cell other than the blacklisted cell as a camped cell, the method further comprises:
and dropping from a first network to a second network, wherein the first network is a network corresponding to the first cell, and the second network is a network corresponding to the resident cell determined by the terminal equipment.
5. The terminal equipment is characterized by comprising a processing module, an obtaining module and a determining module;
the processing module is used for initiating a network searching request carrying a first identifier under the condition that a response message which is sent by network equipment and allows circuit switched fallback is not received within a preset time length, wherein the first identifier is used for indicating that a blacklisted cell is excluded when a resident cell is selected;
the acquiring module is used for acquiring at least one cell according to the network searching request initiated by the processing module;
the determining module is configured to determine, as a camped cell, one cell of the at least one cell acquired by the acquiring module, except for the blacklist cell.
6. The terminal device according to claim 5, wherein the terminal device further comprises a sending module;
the sending module is configured to send a request message carrying a second identifier to the network device before the processing module initiates a network searching request carrying the first identifier;
the processing module is configured to start timing after the sending module sends the request message carrying the second identifier to the network device;
wherein the second identifier is used for requesting circuit domain fallback.
7. The terminal device of claim 6, wherein the terminal device further comprises a receiving module;
the receiving module is configured to receive, when the terminal device resides in the first cell, a paging message that is sent by the network device and carries a third identifier before the sending module sends a request message that carries a second identifier to the network device;
the sending module is specifically configured to send the request message carrying the second identifier to the network device when the third identifier matches a fourth identifier stored in the terminal device;
the third identifier is used for indicating a called device, and the fourth identifier is used for indicating the terminal device.
8. The terminal device according to claim 5, wherein the processing module is configured to control the terminal device to fall back from a first network to a second network after the determining module determines one of the at least one cell acquired by the acquiring module except for the blacklisted cell as a camped cell;
the first network is a network corresponding to the first cell, and the second network is a network corresponding to the resident cell determined by the terminal device.
9. A terminal device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the cell determination method according to any one of claims 1 to 4.
10. 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 determination method according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911097009.8A CN110913454A (en) | 2019-11-11 | 2019-11-11 | Cell determination method and terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911097009.8A CN110913454A (en) | 2019-11-11 | 2019-11-11 | Cell determination method and terminal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110913454A true CN110913454A (en) | 2020-03-24 |
Family
ID=69817107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911097009.8A Pending CN110913454A (en) | 2019-11-11 | 2019-11-11 | Cell determination method and terminal equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110913454A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114760675A (en) * | 2022-05-30 | 2022-07-15 | Oppo广东移动通信有限公司 | Cell access control method, device, equipment and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170289886A1 (en) * | 2016-04-05 | 2017-10-05 | Apple Inc. | Apparatus, Systems and Methods for System Selection and Reselection |
| CN107889129A (en) * | 2016-09-30 | 2018-04-06 | 华为技术有限公司 | The method and terminal of a kind of call response |
| WO2019005996A1 (en) * | 2017-06-29 | 2019-01-03 | Intel IP Corporation | Improved handling of timer expiry for mt csfb |
| CN110063071A (en) * | 2017-10-13 | 2019-07-26 | 华为技术有限公司 | A kind of method and terminal of cell selection |
-
2019
- 2019-11-11 CN CN201911097009.8A patent/CN110913454A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170289886A1 (en) * | 2016-04-05 | 2017-10-05 | Apple Inc. | Apparatus, Systems and Methods for System Selection and Reselection |
| CN107889129A (en) * | 2016-09-30 | 2018-04-06 | 华为技术有限公司 | The method and terminal of a kind of call response |
| WO2019005996A1 (en) * | 2017-06-29 | 2019-01-03 | Intel IP Corporation | Improved handling of timer expiry for mt csfb |
| CN110063071A (en) * | 2017-10-13 | 2019-07-26 | 华为技术有限公司 | A kind of method and terminal of cell selection |
Non-Patent Citations (1)
| Title |
|---|
| INTEL DEUTSCHLAND GMBH: ""C1-172980 Handling of timer expiry during extended service request procedure for MT CSFB"", 《3GPP TSG-CT WG1 MEETING #105》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114760675A (en) * | 2022-05-30 | 2022-07-15 | Oppo广东移动通信有限公司 | Cell access control method, device, equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109089297B (en) | Network searching method and terminal | |
| CN109803347B (en) | Service processing method and mobile communication terminal | |
| CN110831078B (en) | Cell reselection method, terminal and network side equipment | |
| CN110730504B (en) | Paging indication method, device and system | |
| CN110831109B (en) | Network selection method, terminal, network indication method and network side equipment | |
| CN108650699B (en) | Network searching method of mobile terminal and mobile terminal | |
| CN110769439B (en) | Measurement method, terminal and network side equipment | |
| CN110022553B (en) | User identity identification card management method and mobile terminal | |
| CN111010718B (en) | Method for quickly searching network, configuration method and electronic equipment | |
| CN108282834B (en) | Method for accessing terminal to LTE network and terminal | |
| CN111436088B (en) | Cell reselection method, base station, user terminal and storage medium | |
| CN111615159A (en) | Terminal residing method and terminal | |
| CN111818593A (en) | Network switching method and terminal | |
| CN111436090A (en) | P L MN synchronization method, terminal and storage medium | |
| CN111182563B (en) | Wireless capability identifier transmission method, terminal equipment and network node | |
| CN110351702B (en) | System information area determining method, indicating method, terminal and network equipment | |
| CN111615198A (en) | Resource determining method, resource indicating method, terminal and network side equipment | |
| CN106851784B (en) | network scanning method and terminal equipment | |
| CN110855807A (en) | Method and equipment for adding contact person | |
| CN109769262B (en) | VoLTE call recovery method and terminal equipment | |
| CN112770371A (en) | Network registration method and equipment | |
| CN110913454A (en) | Cell determination method and terminal equipment | |
| CN111615175A (en) | Network searching method and terminal | |
| CN113068135B (en) | Multicast service processing method, multicast service configuration method and related equipment | |
| CN111601364B (en) | Method for sending and receiving network identification information and communication equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200324 |