WO2022151252A1 - Network access method and apparatus - Google Patents

Abstract

The present application provides a network access method and apparatus. The method comprises: obtaining access information of a first network and a second network; and accessing the first network on the basis of an access parameter of a terminal device and according to the access information of the first network and/or the second network, wherein the first network is a public land mobile network, and the second network is a cell access group associated with the public land mobile network; or the first network is the cell access group, and the second network is the public land mobile network. After a UE determines the selected network, the base station may be notified, such that the base station may predict the network selected by the terminal device, and control access of the terminal device and reasonably allocate network resources by reconfiguring the access information of the first network and the second network.

Description

Method and device for accessing a network technical field

The present application relates to the field of communications, and, more particularly, to a method and apparatus for accessing a network.

Background technique

The public network integrated NPN (PNI-NPN) is not an independent network, but introduces the access restriction function in some cells of the public land mobile network (PLMN), so that the cell can only A specific user (user equipment, UE) is open.

PNI-NPN performs access restriction through cell access group (CAG). A CAG represents a group of UEs, and each CAG is identified by a PLMN ID and a CAG ID.

If a cell can allow the access of UEs that subscribe to the PLMN and the CAG associated with the PLMN at the same time. When the UE wants to access the cell, how to access the cell reasonably is a problem that needs to be solved at present.

SUMMARY OF THE INVENTION

The present application provides a method and apparatus for accessing a network, so as to access a cell through a suitable network.

In a first aspect, a method for accessing a network is provided. The method may be executed by a terminal device, or may also be executed by a chip or circuit configured in the terminal device, which is not limited in this application.

The method includes: acquiring access information of a first network and a second network, where the access information of the first network and the second network includes a unified access control UAC parameter, and the UAC parameter includes an access identifier prohibition list and a prohibition factor; Access the first network based on the access parameters of the terminal device and according to the access information of the first network and/or the second network, the access parameters of the terminal device include an access type and an access identifier; wherein , the first network is a public land mobile network, and the second network is a cell access group associated with the public land mobile network; or, the first network is the cell access group, and the second network is the public land mobile network network.

Based on the above technical solutions, the terminal device obtains the access information of the first network and the second network, and selects the network to be accessed based on the access parameters, so that after the terminal device determines the network to be selected for access, it notifies the base station, so that the base station The network selected by the terminal device can be known, and the access of the terminal device can be controlled by resetting the access information of the first network and the second network, and network resources can be allocated reasonably.

With reference to the first aspect, in some implementations of the first aspect, the access parameter of the terminal device further includes a random number, according to the access identifier and/or the random number, and the access type corresponding to the first network UAC parameter to determine whether to access the first network.

It should be understood that the random number is generated by the terminal device, or may also be obtained by the terminal device from a certain list, which is not limited herein. The terminal device needs to compare the access parameters with the obtained UAC parameters of the first network to determine whether one of the following two conditions is met, and if so, it can access the first network.

The first condition is that at least one of the access identifiers is not prohibited by the access identifier prohibition list of the first network,

The second condition is that all the access identifiers are prohibited by the access identifier prohibition list of the first network, and the random number is smaller than the prohibition factor of the first network.

With reference to the first aspect, in some implementations of the first aspect, the access parameter of the terminal device further includes a random number, according to the access identifier and/or the random number, and the access type corresponding to the second network. UAC parameter to determine whether to access the first network.

It should be understood that, in the above solution, it is determined whether another network needs to be selected for access according to the access parameters of the terminal device and the UAC parameters of the second network. The difficulty level, etc., is not limited here. This solution can ensure that the terminal device can be guaranteed to access a network at least for a period of time, regardless of whether the network to be accessed is preferred or not.

With reference to the first aspect, in some implementations of the first aspect, judging whether to access the first network includes: judging whether the access identifier and/or the random number meet the access conditions of the second network; In the case of the access conditions of the second network, it is determined whether to access the first network.

Based on the above technical solutions, the terminal device preferentially selects the second network for access, and finds that the access conditions of the second network are not met during the access process, so it selects the first network to determine whether access is possible.

It should be understood that the method for judging that the access condition of the second network is not satisfied is as follows: at least one of the access identifiers is not prohibited by the access identifier prohibition list of the second network; or, all the access identifiers are blocked by the first access identifier. The access identifier prohibition list of the second network is prohibited, and the random number is smaller than the prohibition factor of the second network.

With reference to the first aspect, in some implementations of the first aspect, the first network is accessed based on the access parameters of the terminal device and according to the access information of the first network and the access information of the second network , including: according to the access identifier and/or the random number, and the UAC parameter of the second network corresponding to the access category, judging whether the access identifier and/or the random number satisfy the access conditions of the second network; In the case that the access condition of the second network is not satisfied, access the first network according to the access identifier and/or random number, and the UAC parameter of the first network corresponding to the access type.

It should be understood that in the solution of directly accessing the first network, there is no step of judging whether to access the first network, but it has been judged whether the second network can be accessed before accessing the first network, and the access to the second network fails. In the case of , directly select the first network access.

With reference to the first aspect, in some implementations of the first aspect, before judging whether the second network can be accessed, according to the access identifier and/or random number, and the first corresponding to the access category The UAC parameter of the network determines that the access condition of the first network is not satisfied.

In a second aspect, an apparatus for accessing a network is provided, the apparatus includes: a transceiver unit and a processing unit, where the transceiver unit is configured to acquire access information of a first network and a second network, the first network and the second network The access information includes the unified access control UAC parameter, the UAC parameter includes the access identification barring list and barring factor; the processing unit is used for the access parameter based on the terminal device, and according to the first network and/or the second network The access information of the network, to access the first network, the access parameters of the terminal device include an access type and an access identifier; wherein, the first network is a public land mobile network, and the second network is the public land mobile network a cell access group associated with a network; or, the first network is the cell access group, and the second network is the public land mobile network.

Based on the above technical solutions, the terminal device obtains the access information of the first network and the second network, and selects the network to be accessed based on the access parameters, so that after the terminal device determines the network to be selected for access, it notifies the base station, so that the base station The network selected by the terminal device can be known, and the access of the terminal device can be controlled by resetting the access information of the first network and the second network, and network resources can be allocated reasonably.

With reference to the second aspect, in some implementations of the second aspect, the access parameter of the terminal device further includes a random number, and the processing unit is further configured to, according to the access identifier and/or the random number, and the corresponding access type The UAC parameter of the first network is determined to determine whether to access the first network.

With reference to the second aspect, in some implementations of the second aspect, the processing unit is further configured to: determine that the access identifier satisfies the first condition or that the access identifier and the random number satisfy the second condition, and access the first network; The first condition is that at least one of the access identities is not prohibited by the access identity prohibition list of the first network, and the second condition is that all the access identities are prohibited by the access identity of the first network. List prohibition, the random number is less than the prohibition factor of the first network.

With reference to the second aspect, in some implementations of the second aspect, the access parameter of the terminal device further includes a random number, and the processing unit is further configured to, according to the access identifier and/or the random number, and the corresponding access type The UAC parameter of the second network is determined to determine whether to access the first network.

With reference to the second aspect, in some implementations of the second aspect, the processing unit is further configured to: determine whether the access identifier and/or the random number satisfy the access conditions of the second network; In the case of access conditions, determine whether to access the first network.

With reference to the second aspect, in some implementations of the second aspect, the processing unit is further configured to: determine, according to the access identifier and/or random number, and the UAC parameter of the second network corresponding to the access category Whether the access identifier and/or random number satisfy the access condition of the second network; if the access condition of the second network is not satisfied, according to the access identifier and/or random number, and the access type Corresponding to the UAC parameter of the first network, access the first network.

With reference to the second aspect, in some implementations of the second aspect, the processing unit is further configured to determine, according to the access identifier and/or random number, and the UAC parameter of the second network corresponding to the access category Before whether to access the second network, it is determined that the access conditions of the first network are not satisfied according to the access identifier and/or random number, and the UAC parameter of the first network corresponding to the access category.

In a third aspect, a communication apparatus is provided for executing the method in any possible implementation manner of the above aspects. Specifically, the apparatus includes means for performing the method in any of the possible implementations of the first aspect.

In a fourth aspect, another communication apparatus is provided, including a processor, which is coupled to a memory and can be configured to execute instructions in the memory, so as to implement the method in any possible implementation manner of the first aspect above. The memory may be an on-chip storage unit inside the processor, or an off-chip storage unit located outside the processing coupled with the memory. In one possible implementation, the apparatus further includes a memory. In a possible implementation, the apparatus further includes a communication interface, and the processor is coupled to the communication interface.

In a possible design, the communication device may be a terminal device, or a chip, a circuit or a processing system configured in the terminal device, or a device including a terminal device.

In an implementation manner, the apparatus is a terminal device or a device including a terminal device. When the apparatus is a terminal device or a device including a terminal device, the communication interface may be a transceiver, or an input/output interface. Optionally, the transceiver may be a transceiver circuit.

In another implementation manner, the apparatus is a chip configured in a terminal device. When the device is a chip configured in a terminal device, the communication interface may be an input/output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit, and the like. The processor may also be embodied as processing circuitry or logic circuitry.

In a fifth aspect, a computer-readable storage medium is provided on which a computer program is stored, and when the computer program is executed by an apparatus, the apparatus enables the apparatus to implement the method in any possible implementation manner of the first aspect.

A sixth aspect provides a computer program product comprising instructions, which, when executed by a computer, cause a signaling device to implement the method in any one of the possible implementation manners of the first aspect above.

Description of drawings

FIG. 1 is a schematic diagram of a communication system suitable for an embodiment of the present application.

FIG. 2 is a schematic diagram of a network identification in a cell broadcast message.

FIG. 3 is a flowchart of UE judging whether access is allowed according to network access information.

FIG. 4 is an application scenario diagram of a UE accessing a network applicable to the embodiment of the present application.

FIG. 5 is a flowchart of a UE selecting a network applicable to an embodiment of the present application.

FIG. 6 is a flowchart of a UE selecting a network applicable to an embodiment of the present application.

FIG. 7 is another flowchart of UE selection of a network applicable to the embodiment of the present application.

FIG. 8 is another flowchart of UE selection of a network applicable to the embodiment of the present application.

FIG. 9 is a flowchart of another UE selecting a network applicable to the embodiment of the present application.

FIG. 10 is a schematic diagram of a communication apparatus provided according to an embodiment of the present application.

FIG. 11 is a schematic diagram of a communication apparatus provided according to an embodiment of the present application.

FIG. 12 is a schematic diagram of a terminal device suitable for an embodiment of the present application.

Detailed ways

The technical solutions in the present application will be described below with reference to the accompanying drawings.

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: a global system for mobile communications (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access ( wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division Duplex (time division duplex, TDD), universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, satellite communication system, fifth generation (5th generation) , 5G) system or new radio (NR), and future communication systems.

It should be understood that in a wireless communication system, air interface resources may be used for wireless communication between communication devices. The communication devices may include network devices and terminal devices, and the network devices may also be referred to as network-side devices. The air interface resources may include at least one of time domain resources, frequency domain resources, code resources and space resources. In this embodiment of the present application, at least one may also be described as one or more, and the multiple may be two, three or more, which is not limited in this application.

FIG. 1 is a schematic diagram of a communication system 100 suitable for an embodiment of the present application.

As shown in FIG. 1 , the communication system 100 may include a network device 111 , for example, the network device shown in FIG. 1 . The communication system 100 may further include at least one terminal device 121, such as the terminal device shown in FIG. 1 . A connection can be established between the terminal device and the network device, and between the terminal device and the terminal device, for communication, and the sending device can indicate the scheduling information of the data through the control information, so that the receiving device can correctly receive the data according to the control information.

The terminal device in the embodiments of the present application may also be referred to as UE, access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, and user agent or user device. The terminal device in the embodiment of the present application may be a mobile phone, a tablet computer, an indoor or outdoor customer premises equipment (CPE), a computer with a wireless transceiver function, a virtual reality terminal device, an augmented reality terminal device, an industrial control device wireless terminals in autonomous driving, wireless terminals in telemedicine, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, Cordless telephones, session initiation protocol (SIP) telephones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or Other processing equipment connected to the wireless modem, in-vehicle equipment, wearable equipment, terminal equipment in the 5G network or terminal equipment in the future evolved Public Land Mobile Network (PLMN), etc.

In addition, the terminal device may also be a terminal device in an internet of things (Internet of things, IoT) system. IoT is an important part of the development of information technology in the future. Its main technical feature is to connect items to the network through communication technology, so as to realize the intelligent network of human-machine interconnection and interconnection of things.

It should be understood that, in this embodiment of the present application, the terminal device may be a device for implementing the function of the terminal device, or a device capable of supporting the terminal device to realize the function, such as a chip system, and the device may be installed in the terminal. In this embodiment of the present application, the chip system may be composed of chips, or may include chips and other discrete devices. In the technical solutions provided by the embodiments of the present application, the terminal device is a UE as an example to describe the technical solutions provided by the embodiments of the present application.

The network device in this embodiment of the present application may be any device with a wireless transceiver function. The equipment includes but is not limited to: radio network controller (RNC), node B (node B, NB), base station controller (BSC), base transceiver station (base transceiver station, BTS), Home base station (eg, home evolved nodeB, or home node B, HNB), base band unit (BBU), access point (AP) in wireless fidelity (WIFI) systems, wireless Relay node, wireless backhaul node, transmission point (TP) or transmission and reception point (TRP), etc. It can also be 5G, such as gNB in NR system, or transmission point (TRP or TP) ), one or a group (including multiple antenna panels) antenna panels of the base station in the 5G system, or, it can also be a network node that constitutes a gNB or a transmission point, such as a baseband unit, or a distributed unit (distributed unit, DU) , and may also be a base station in a future mobile communication system or an access node in a Wi-Fi system.

In some deployments, a gNB may include a centralized unit (CU) and a DU. The gNB may also include an active antenna unit (active antenna unit, AAU for short). The CU implements some functions of the gNB, and the DU implements some functions of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, and implementing functions of radio resource control (RRC) and packet data convergence protocol (PDCP) layers. The DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC) layer, the media access control (MAC) layer, and the physical layer. AAU implements some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, therefore, in this architecture, the higher-layer signaling, such as the RRC layer signaling, can also be considered to be sent by the DU. , or, sent by DU+AAU. It can be understood that the network device may be a device including one or more of a CU node, a DU node, and an AAU node. In addition, the CU can be divided into network devices in an access network (radio access network, RAN), and the CU can also be divided into network devices in a core network (core network, CN), which is not limited in this application.

It should be understood that, in this embodiment of the present application, the network device may be an apparatus for implementing the function of the network device, or may be an apparatus capable of supporting the network device to implement the function, such as a chip system, and the apparatus may be installed in the network device.

For a PLMN cell, if its broadcast message contains only the PLMN ID but not the CAG ID, it means that the cell allows all UEs that have subscribed to the PLMN to access; if its broadcast message contains both the PLMN ID and the CAG ID, it means that the The cell only allows access to UEs that have subscribed to the CAG, and does not allow access to UEs that have not subscribed to the CAG).

FIG. 2 is a schematic diagram of a network identification in a cell broadcast message.

If the cell broadcast message contains the identity of the first network, such as PLMN 1, as shown in Figure 2a, it means that the cell allows all UEs that have subscribed to the first network to access; if the cell broadcast message contains both the identity of the first network and the The identifier of the second network, such as PLMN 1PLMN 1+CAG A, as shown in Figure 2b, indicates that the cell only allows UEs that have subscribed to the second network to access, but does not allow UEs that only subscribe to the first network but do not subscribe to the second network. access.

When a cell allows both UEs subscribed to the first network and UEs subscribed to the second network to access, the cell broadcast message contains two parts, such as PLMN ID and (PLMN ID, CAG ID) two parts , corresponding to two cell IDs, respectively, as shown in Figure 2c. If the cell broadcast message includes multiple second network identifiers associated with the same first network identifier, these second network identifiers should belong to the same cell ID.

It should be understood that the first network is exemplified as a PLMN above, and the second network is exemplified as at least one CAG associated with the PLMN. It should be noted that the at least one CAG associated with the PLMN here is only an example without any limitation. It can also be some other access restrictions associated with the PLMN, and hereinafter, the first network can also be exemplified as at least one CAG associated with the PLMN, and the second network can be exemplified as the PLMN, and the specific examples of the first network and the second network are also Do not make any restrictions.

In 5G NR, the UAC (Unified Access Control) mechanism is used to control whether the UE can initiate an access attempt in a cell.

The UAC determines whether the access of the UE is allowed based on two parameters, an access category (AC) and an access identity (AI). Wherein, AC is the type of access (for example, Table 1), and AI is the attribute of the user (for example, Table 2). Each access of the UE corresponds to one AC and at least one AI. During the access process of the UE, firstly determine one AC and several AIs corresponding to the current access, and then judge whether the current access is allowed according to the UAC parameter of the cell broadcast message.

For example, if a UE configured with "regular service" and "multimedia priority service" tries to initiate "delay tolerant access", the UE first determines the access parameters corresponding to this access, such as AC=1, AI=0/ 1, and then judge whether the access corresponding to the access parameter is allowed according to the UAC parameter of the cell.

Table 1 Access categories

Access category	type of access
0	Paging-triggered user signaling
1	Latency Tolerant Access
2	emergency access
3	Non-paging-triggered user NAS signaling transmission
4	voice
5	video
6	short message
7	User-initiated data transfer
8	Non-paging-triggered user RRC signaling transmission
9	User-initiated IMS registration signaling transmission

10	User-initiated abnormal data transfer
11-31	reserved
32-63	Carrier customization

Table 2 Access ID

Access ID	UE configuration
0	regular business
1	Multimedia Priority Service (MPS)
2	Mission Critical (MCS)
3-10	reserved
11	PLMN usage
12	Security business
13	Public Affairs
14	emergency business
15	PLMN staff use

The broadcast message of the cell includes UAC parameters corresponding to each AC. UAC parameters include:

AI barring list (parameter name: UAC-Barring For Access Identity), indicating whether the access corresponding to each AI is allowed. This parameter contains several bits (the existing protocol is indicated by 8 bits, and the reserved 3-10 bits are not indicated by corresponding bits), and each bit corresponds to an AI. If the value of a bit is 0, it means that the AI corresponding to the bit is allowed; if the value of a bit is 1, it means that the corresponding AI is prohibited.

Barring factor (parameter name: UAC-Barring Factor), indicating the probability that access is allowed. The value of this parameter can be {p00, p05, p10…}. For example, the value "p10" means that the probability of access being allowed is 10%.

Barring time (parameter name: UAC-Barring Time, indicating the time to wait for re-initiation of access after access is prohibited. The value of this parameter can be {s4, s8, s16...}. For example, the value is "s8" Indicates waiting for 8s.

FIG. 3 is a flowchart of UE judging whether access is allowed according to the access information of the network.

Step S310: Determine one AC and at least one AI corresponding to the UE access. And read the UAC parameter corresponding to the AC in the cell broadcast message, the UAC parameter includes the AI prohibition list, the prohibition factor F, and the prohibition time T.

Step S320, according to the AI prohibition list, determine whether at least one of the above-mentioned AIs corresponding to the current access is allowed. If in the AI prohibition list, at least one of the bits corresponding to the several AIs has a value of 0, it is considered that the current access is allowed, otherwise, step S330 is entered.

Step S330, the UE generates a random number m (0≤m<1). If m<F, it is considered that the access is allowed, otherwise, go to step S340.

Step S340, the UE generates a random number n (0≤n<1). After waiting for (0.7+0.6×n)×T, return to step 330 until the network is accessed.

It should be understood that if a cell supports both the PLMN and the CAG associated with the PLMN, UAC parameters may be configured for the PLMN and the CAG respectively. And all CAGs associated with a PLMN can be configured with the same set of UAC parameters.

FIG. 4 is an application scenario diagram of a UE accessing a network applicable to the embodiment of the present application.

The UE subscribes to the first network and the second network, for example, a PLMN and at least one CAG associated with the PLMN. When the UE initiates connection establishment/connection recovery to the base station, it needs to select a network and a corresponding cell. The UE includes a non-access stratum (NAS) and an access stratum (access stratum, AS). Typically, the UE NAS is responsible for network selection, and the UE AS is responsible for cell selection and reselection.

The process for UE to select a network and a cell is as follows: First, the UE NAS selects a network, such as PLMN, and informs the UE AS of the selected result, and then the AS further selects a cell in the network selected by the NAS. If the selected cell supports the first cell at the same time A network and a second network, for example, the cell supports both the PLMN and the CAG associated with the PLMN, that is, there is an intersection between the CAG subscribed by the UE and the CAG supported by the cell. For example: UE subscribes to PLMN1 and CAAG A associated with PLMN1, and the cell selected by UE AS supports both PLMN 1 and CAAG A associated with PLMN1.

When the UE initiates access in the cell, it needs to further determine whether to access the cell through the first network or the second network. The following mainly introduces how the UE determines through which network to access the cell.

FIG. 5 is a flowchart of a UE selecting a network applicable to an embodiment of the present application.

Step S510, acquiring access information of the first network and the second network.

Optionally, the access information of the first network and the second network may be based on information corresponding to the current access parameters, for example, the UAC parameters corresponding to the AC, and of course other parameters that can be used as access restrictions. This does not limit.

Step S520, access the first network based on the access parameters of the UE and according to the access information of the first network and/or the second network.

The first network is a public land mobile network, and the second network is a cell access group associated with the public land mobile network; or, the first network is the cell access group, and the second network is the public land mobile network network, there is no restriction here.

It should be understood that there are three basis for accessing the first network, one is the access parameters of the UE and the access information of the first network; the other is the access parameters of the UE and the access information of the second network; the third is the access parameters of the UE and the access information of the second network; is the access parameter of the UE and the access information of the first network and the second network.

Optionally, the access parameters of the UE include AI, AC, and a random number. The random number may be generated by the UE or obtained from a certain list. This application does not limit the method of obtaining the random number. This article takes the generation of random numbers as an example.

FIG. 6 is a flowchart of a UE selecting a network applicable to an embodiment of the present application.

In this embodiment, the UE AS preferentially selects the first network, and selects the first network for access according to the access parameters of the UE and the access information of the first network.

Optionally, before accessing the first network, it is determined whether the first network can be accessed. If it is determined that the first network cannot be accessed, it is determined whether access to the second network is possible according to the access parameters of the UE and the access information of the second network. An example will be given below to illustrate the entire access judgment process. In this example, the first network is the PLMN, and the second network is the CAG associated with the PLMN.

It should be understood that the CAG associated with the PLMN is an example based on the existing protocol, and the network may also include PLMNs restricted by other access restriction functions in the future, so this name will not have any restrictions on this application. When the CAG associated with the PLMN occurs, it is also as described above, which will not be repeated in the following in order to avoid redundant description.

The process for the UA AS to select the first network/second network for access is as follows:

Step S610: Determine parameters for accessing the cell, such as AC and at least one AI.

Step S611, read the cell system message, and obtain the access information of the first network and the second network, for example: obtain in the cell broadcast message:

(1) UAC parameters of the PLMN corresponding to the AC, including the AI prohibition list L1, the prohibition factor F1, and the prohibition time T1.

(2) UAC parameters of the CAG corresponding to the AC, including the AI prohibition list L2, the prohibition factor F2, and the prohibition time T2.

It should be understood that a PLMN may be associated with several CAGs, wherein the UAC parameters of each CAG may be the same.

Step S620, according to the access parameters of the UE and the access information of the first network, determine whether the current access is allowed. For example, according to L1, it is determined whether at least one AI is allowed in the at least one AI corresponding to the current access. If one AI is allowed, select the first network for access, otherwise, go to step S621.

Specifically, the value of the bit indicates whether the AI is allowed. For example, when L1 in the forbidden list, at least one of the bits corresponding to the AI determined above has a value of 0, it means that at least one AI is allowed, so this access is allowed, or you can also use this The value of the bit bit is 1, indicating that the AI is allowed, and there is no restriction here.

It should be understood that in the existing protocol, 8 bits are used to indicate the AI prohibition list, but with the development of the network, the number of bits indicating the AI prohibition list will also change in the future, which is not limited here.

Optionally, in this embodiment, step S620 may also be omitted, and step S621 is directly entered to determine whether access to the first network is possible.

Step S621, generate a random number x (0≤x<1). If x<F1, select PLMN for access; otherwise, go to step S630.

Step S630: Determine whether the current access is allowed according to the access parameters of the UE and the access information of the second network. For example, according to L2, determine whether at least one of the at least one AI corresponding to the current access is allowed. If one AI is allowed, select the second network for access, otherwise, go to step S631.

It should be understood that, in this step, the method of judging whether AI is allowed is similar to step S620, and details are not described here.

Optionally, step S630 is omitted, and step S631 is directly entered from step S621 to determine whether the second network can be accessed.

Step S631, generate a random number y (0≤y<1). If y<F2, select CAG for access; otherwise, go to step S640.

Step S640, generate a random number z (0≤z<1). After waiting for a period of time, return to step S621 to loop until the first network or the second network is accessed. For example, after waiting for (0.7+0.6×z)×T1, return to step S621, re-judgment, and skip step S630 in the next judgment flow.

FIG. 7 is another flowchart of UE selection of a network applicable to the embodiment of the present application.

In this embodiment, the UE AS preferentially selects the first network, and judges whether the first network can be accessed according to the access parameters of the UE and the access information of the first network. If it is determined that the first network cannot be accessed, it is determined whether access to the second network is possible according to the access parameters of the UE and the access information of the second network. The entire process of access determination is illustrated below by taking the first network as the CAG associated with the PLMN and the second network as the PLMN as an example.

Step S710 is the same as S610.

Step S711 is the same as S611.

Step S720, according to the access parameters of the UE and the access information of the first network, determine whether the current access is allowed. For example, according to L2, it is determined whether at least one AI is allowed in the at least one AI corresponding to the current access. If one AI is allowed, select the first network for access, otherwise, go to step S721.

Optionally, in this embodiment, step S720 may also be omitted, and step S721 is directly entered to determine whether the first network can be accessed.

Step S721, generate a random number x1 (0≤x1<1). If x1<F2, select CAG for access; otherwise, go to step S730.

Step S730: Determine whether the current access is allowed according to the access parameters of the UE and the access information of the second network. For example, according to L1, determine whether at least one of the at least one AI corresponding to the current access is allowed. If one AI is allowed, select the second network for access, otherwise, go to step S731.

It should be understood that, in this step, the method for determining whether AI is allowed is the same as that in step S620, and details are not described here.

Optionally, step S730 is omitted, and step S731 is directly entered from step S721 to determine whether the second network can be accessed.

Step S731, generate a random number y1 (0≤y1<1). If y1<F1, select PLMN for access; otherwise, go to step S740.

Step S740, generate a random number z1 (0≤z1<1). After waiting for a period of time, return to step S721 to loop until the first network or the second network is accessed. For example, after waiting for (0.7+0.6×z1)×T2, return to step S721, make a new judgment, and skip step S730 in the next judgment flow.

FIG. 8 is another flowchart of UE selection of a network applicable to the embodiment of the present application.

In this embodiment, the UE AS preferentially selects the first network, and judges whether the first network can be accessed according to the access parameters of the UE and the access information of the first network. If it is determined that the first network cannot be accessed, it is determined whether access to the second network is possible according to the access parameters of the UE and the access information of the second network. The entire access judgment process is described below by taking the first network as the PLMN and the second network as the CAG as an example.

Step S810 is the same as S710 and S610.

Step S811 is the same as S711 and S611.

Step S820, according to the access parameters of the UE and the access information of the first network, determine whether the current access is allowed. For example, it is determined whether at least one AI in the at least one AI corresponding to the current access is allowed by L1. If one AI is allowed, select the first network for access, otherwise, go to step S830.

Step S830, according to the access parameters of the UE and the access information of the first network, determine whether the current access is allowed. For example, it is judged whether at least one of the at least one AI corresponding to the current access is allowed by L2. If one AI is allowed, select the second network for access, otherwise, go to step S840.

Step S840, generate a random number x2 (0≤x2<1). If x2<F1, select PLMN for access; otherwise, go to step S850.

Optionally, after step S840, a random number y2 (0≤y2<1) is generated. If y2<F2, select CAG for access; otherwise, go to step S850.

Step S850, generate a random number z2 (0≤z2<1). After waiting time (0.7+0.6×z2)×T1, return to step S840 until the PLMN is accessed.

FIG. 9 is another flowchart of UE selection of a network applicable to the embodiment of the present application.

In this embodiment, the UE AS preferentially selects the first network, and judges whether the first network can be accessed according to the access parameters of the UE and the access information of the first network. If it is determined that the first network cannot be accessed, it is determined whether access to the second network is possible according to the access parameters of the UE and the access information of the second network. This embodiment is opposite to the third embodiment, and the whole process of access judgment is described below by taking the first network as the CAG and the second network as the PLMN as an example.

Step S910 is the same as S610, S710, and S810.

Step S911 is the same as S611, S711, and S811.

Step S920, according to the access parameters of the UE and the access information of the first network, determine whether the current access is allowed. For example, it is determined whether at least one AI in the at least one AI corresponding to the current access is allowed by L2. If one AI is allowed, select the first network for access, otherwise, go to step S930.

Step S930, according to the access parameters of the UE and the access information of the first network, determine whether the current access is allowed. For example, it is determined whether at least one of the at least one AI corresponding to the current access is allowed by L1. If one AI is allowed, select the second network for access, otherwise, go to step S940.

Step S940, generate a random number x3 (0≤x3<1). If x3<F2, select CAG for access; otherwise, go to step S950.

Optionally, in step S940, before entering step S950, a random number y3 (0≤y3<1) is generated. If y3<F1, select PLMN for access; otherwise, go to step S950.

Step S950, generate a random number z3 (0≤z3<1). After waiting time (0.7+0.6×z3)×T2, return to step S940 until the CAG is accessed.

It should be understood that the solutions in FIG. 6 to FIG. 9 can also be that when the UE selects a network that is more favorable to the UE itself by judging the quality of the first network or the second network or other conditions, it is also possible that the UE directly selects a network at this time. When accessing the first network, when the first access fails, a random number will be generated, and after a period of time, it will try to access again instead of selecting another network. This solution is implemented in the above steps, steps S621, S721, S820 or After S920, if the access of the UE is not allowed, directly enter step S640, S740, S840 or S940, try to access the second time, and loop until the preferred network is accessed.

In the method for selecting access to the first network or the second network in the cell by the UE AS proposed in this application, the UE AS selects the first network or the second network according to the access information of the first network or the second network, and simultaneously selects the first network or the second network through the access information of the first network or the second network. First, the access information of the first network is judged to give priority to the access of the first network.

When the UE AS determines the selected network, it will notify the network equipment (such as the base station), so that the base station can predict the network selected by the UE under the base station, and control the UE's access information by resetting the access information of the first network and the second network. access and allocate network resources reasonably.

The various embodiments described herein may be independent solutions, or may be combined according to internal logic, and these solutions all fall within the protection scope of the present application.

It can be understood that, in the foregoing method embodiments, the methods and operations implemented by the transmitting end device (eg, terminal device) may also be implemented by components (eg, chips or circuits) that can be used in the terminal device.

In the above, the methods provided by the embodiments of the present application are described in detail with reference to FIG. 1 to FIG. 9 . Hereinafter, the communication apparatus provided by the embodiments of the present application will be described in detail with reference to FIG. 10 to FIG. 12 . It should be understood that the description of the apparatus embodiment corresponds to the description of the method embodiment. Therefore, for the content not described in detail, reference may be made to the above method embodiment, which is not repeated here for brevity.

The foregoing mainly introduces the solutions provided by the embodiments of the present application from the perspective of interaction between various network elements. It can be understood that each network element, such as a sending end device or a receiving end device, includes hardware structures and/or software modules corresponding to executing the respective functions in order to implement the above functions. Those skilled in the art should realize that the present application can be implemented in hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

In this embodiment of the present application, the transmitting end device or the receiving end device may be divided into functional modules according to the foregoing method examples. For example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. middle. The above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules. It should be noted that, the division of modules in the embodiments of the present application is schematic, and is only a logical function division, and there may be other division manners in actual implementation. The following description will be given by taking as an example that each function module is divided corresponding to each function.

FIG. 10 is a schematic block diagram of a communication apparatus provided by an embodiment of the present application. The communication device 1000 includes a transceiver unit 1010 and a processing unit 1020 . The transceiver unit 1010 can implement corresponding communication functions, and the processing unit 1020 is used for data processing. Transceiver unit 1010 may also be referred to as a communication interface or a communication unit.

Optionally, the communication apparatus 1000 may further include a storage unit, which may be used to store instructions and/or data, and the processing unit 1020 may read the instructions and/or data in the storage unit, so that the communication apparatus implements the foregoing method Example.

The communication apparatus 1000 may be used to perform the actions performed by the terminal device in the above method embodiments. In this case, the communication apparatus 1000 may be a sending end device or a component that can be configured in the sending end device, and the transceiver unit 1010 is used to execute the above The processing unit 1020 is configured to perform the operations related to the processing on the sending end device side in the above method embodiments.

As a design, the communication apparatus 1000 is configured to perform the actions performed by the terminal device in the above method embodiments.

A possible implementation manner, the transceiver unit 1010 is configured to: acquire access information of the first network and the second network, where the access information of the first network and the second network includes unified access control UAC parameters, and the UAC parameters include Access ID barring list and barring factor. The processing unit 1020 is configured to access the first network based on the access parameters of the terminal device and according to the access information of the first network and/or the second network, the access parameters of the terminal device include an access type, and then access the first network. an entry identifier and a random number; wherein the first network is a public land mobile network, and the second network is a cell access group associated with the public land mobile network; or, the first network is the cell access group, and the second network is the public land mobile network.

Optionally, the processing unit 1020 is further configured to determine whether to access the first network according to the access identifier and the random number, and the UAC parameter of the first network corresponding to the access identifier.

Optionally, the processing unit 1020 is further configured to determine that the first condition or the second condition is satisfied, and access the first network. The first condition is that at least one of the access identities is not prohibited by the access identity prohibition list of the first network, and the second condition is that all the access identities are prohibited by the access identity of the first network. List prohibition, the random number is less than the prohibition factor of the first network.

Optionally, the processing unit 1020 is further configured to determine whether to access the second network according to the access identifier and the random number, and the UAC parameter of the second network corresponding to the access identifier, if the second network is not satisfied. In the case of network access conditions, it is determined whether to access the first network.

Optionally, the processing unit 1020 is further configured to determine whether to access the second network according to the access identifier and the random number, and the UAC parameter of the second network corresponding to the access identifier; In the case of network access conditions, access the first network according to the access identifier and random number, and the UAC parameter of the first network corresponding to the access identifier.

Optionally, the processing unit 1020 is further configured to, before judging whether to access the second network according to the access identifier and the random number, and the UAC parameter of the second network corresponding to the access identifier, according to the access identifier The identifier and random number, as well as the UAC parameter of the first network corresponding to the access identifier, determine that the access conditions of the first network are not satisfied.

The communication apparatus 1000 may implement steps or processes corresponding to the terminal equipment in the method embodiments according to the embodiments of the present application, and the communication apparatus 1000 may include a unit for performing the methods performed by the terminal equipment in FIG. 6 to FIG. 9 . . Moreover, each unit in the communication apparatus 1000 and the other operations and/or functions mentioned above are respectively for implementing the corresponding processes of the method embodiments in FIG. 6 to FIG. 9 .

Wherein, when the communication device 1000 is used to execute the method 600 or 700 in FIG. 6 or 7 , the transceiver unit 1010 can be used to execute step S610 or S710 of the method 600 or 700 ; the processing unit 1020 can be used to execute the method 600 or 700 The processing steps of S620, S621, S630, S631, S640 or S720, S721, S730, S731, S740.

Wherein, when the communication device 1000 is used to execute the method 800 or 900 in FIG. 8 or 9 , the transceiver unit 1010 can be used to execute step S810 or S910 of the method 800 or 900 ; the processing unit 1020 can be used to execute the method 800 or 900 The processing steps of S820, S821, S830, S840 or S920, S921, S930, S940.

It should be understood that the specific process of each unit performing the above-mentioned corresponding steps has been described in detail in the above-mentioned method embodiments, and for the sake of brevity, it will not be repeated here.

As shown in FIG. 11 , an embodiment of the present application further provides a communication apparatus 1100 . The communication device 1100 includes a processor 1110, the processor 1110 is coupled with a memory 1120, the memory 1120 is used for storing computer programs or instructions and/or data, the processor 1110 is used for executing the computer programs or instructions and/or data stored in the memory 1120, The methods in the above method embodiments are caused to be executed.

Optionally, the communication device 1100 includes one or more processors 1110 .

Optionally, as shown in FIG. 11 , the communication apparatus 1100 may further include a memory 1120 .

Optionally, the communication device 1100 may include one or more memories 1120 .

Optionally, the memory 1120 may be integrated with the processor 1110, or provided separately.

Optionally, as shown in FIG. 11 , the communication apparatus 1100 may further include a transceiver 1130, and the transceiver 1130 is used for signal reception and/or transmission. For example, the processor 1110 is used to control the transceiver 1130 to receive and/or transmit signals.

As a solution, the communication apparatus 1100 is configured to implement the operations performed by the terminal device in the above method embodiments.

For example, the processor 1110 is configured to implement the processing-related operations performed by the terminal device in the above method embodiments, and the transceiver 1130 is configured to implement the above-mentioned method embodiments performed by the terminal device.

This embodiment of the present application further provides a communication apparatus 1200, where the communication apparatus 1200 may be a terminal device or a chip. The communication apparatus 1200 may be used to perform the operations performed by the terminal device in the foregoing method embodiments.

When the communication apparatus 1200 is a terminal device, FIG. 12 shows a schematic structural diagram of a simplified terminal device. As shown in Figure 12, the terminal device includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device. The processor is mainly used to process communication protocols and communication data, control terminal equipment, execute software programs, and process data of software programs. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal. Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal equipment may not have input and output devices.

When data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal through the antenna in the form of electromagnetic waves. When data is sent to the terminal equipment, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data. For the convenience of description, only one memory and one processor are shown in FIG. 12, and in an actual terminal device product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device or the like. The memory may be set independently of the processor, or may be integrated with the processor, which is not limited in this embodiment of the present application.

In the embodiments of the present application, the antenna and the radio frequency circuit with a transceiver function may be regarded as a transceiver unit of the terminal device, and the processor with a processing function may be regarded as a processing unit of the terminal device.

As shown in FIG. 12 , the terminal device includes a transceiver unit 1210 and a processing unit 1220 . The transceiver unit 1210 may also be referred to as a transceiver, a transceiver, a transceiver, or the like. The processing unit 1220 may also be referred to as a processor, a processing board, a processing module, a processing device, and the like.

Optionally, the device for implementing the receiving function in the transceiver unit 1210 may be regarded as a receiving unit, and the device for implementing the transmitting function in the transceiver unit 1210 may be regarded as a transmitting unit, that is, the transceiver unit 1210 includes a receiving unit and a transmitting unit. The transceiver unit may also sometimes be referred to as a transceiver, a transceiver, or a transceiver circuit. The receiving unit may also sometimes be referred to as a receiver, receiver, or receiving circuit, or the like. The transmitting unit may also sometimes be referred to as a transmitter, a transmitter, or a transmitting circuit, or the like.

For example, in an implementation manner, the processing unit 1220 is configured to perform the processing actions on the terminal device side in the method 600 or 700 . For example, the processing unit 1220 is configured to perform the processing steps in the method 600 or 700; the transceiving unit 1210 is configured to perform the transceiving operation in the method 600 or 700, such as step S610 or S710.

For another example, in an implementation manner, the processing unit 1220 is configured to perform the processing actions on the terminal device side in the method 800 or 900. For example, the processing unit 1220 is configured to perform the processing steps in the method 800 or 900; the transceiving unit 1210 is configured to perform the transceiving operation in the method 800 or 900, such as step S810 or S910.

It should be understood that FIG. 12 is only an example and not a limitation, and the above-mentioned terminal device including a transceiver unit and a processing unit may not depend on the structure shown in FIG. 12 .

When the device 1200 is a chip, the chip includes a transceiver unit and a processing unit. Wherein, the transceiver unit may be an input/output circuit or a communication interface; the processing unit may be a processor, a microprocessor or an integrated circuit integrated on the chip. Of course, when the apparatus 1200 is a chip system or a processing system, the device on which the apparatus 1200 is installed can implement the methods and functions of the embodiments of the present application. For example, the processing unit 1220 can be a chip system or a processing circuit in the processing system, which can control the device on which the chip system or the processing system is installed, and can also be coupled to a storage unit to call instructions in the storage unit, so that the device can implement In the methods and functions of the embodiments of the present application, the transceiver unit 1210 may be an input/output circuit in a chip system or a processing system, which outputs information processed by the chip system, or inputs data or signaling information to be processed into the chip system for processing. .

Embodiments of the present application further provide a computer-readable storage medium, which stores computer instructions for implementing the method executed by the sending end device (eg, terminal device) in the foregoing method embodiments.

For example, when the computer program is executed by a computer, the computer can implement the method executed by the terminal device in the above method embodiments.

Embodiments of the present application further provide a computer program product including instructions, which, when executed by a computer, enable the computer to implement the method executed by a sending end device (eg, a terminal device) in the above method embodiments.

For the explanation and beneficial effects of the relevant content in any of the above-mentioned apparatuses, reference may be made to the corresponding method embodiments provided above, which will not be repeated here.

It should be understood that the processor mentioned in the embodiments of the present application may be a central processing unit (central processing unit, CPU), and may also be other general-purpose processors, digital signal processors (digital signal processors, DSP), application-specific integrated circuits ( application specific integrated circuit, ASIC), off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should also be understood that the memory mentioned in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory. Volatile memory may be random access memory (RAM). For example, RAM can be used as an external cache. By way of example and not limitation, RAM may include the following forms: static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM) , double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synchlink DRAM, SLDRAM) and Direct memory bus random access memory (direct rambus RAM, DR RAM).

It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components, the memory (storage module) can be integrated in the processor.

It should also be noted that the memory described herein is intended to include, but not be limited to, these and any other suitable types of memory.

The terms "component", "module", "system" and the like are used in this specification to refer to a computer-related entity, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component may be, but is not limited to, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and the computing device may be components. One or more components may reside within a process and/or thread of execution, and a component may be localized on one computer and/or distributed between 2 or more computers. In addition, these components can execute from various computer readable media having various data structures stored thereon. A component may, for example, be based on a signal having one or more data packets (eg, data from two components interacting with another component between a local system, a distributed system, and/or a network, such as the Internet interacting with other systems via signals) Communicate through local and/or remote processes.

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

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

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

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

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

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented in software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general purpose computer, special purpose computer, computer network, or other programmable device. For example, the computer may be a personal computer, a server, or a network device or the like. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server, or data center Transmission to another website site, computer, server, or data center by wire (eg, coaxial cable, optical fiber, digital subscriber line) or wireless (eg, infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that includes an integration of one or more available media. The usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media such as solid state disks (SSDs), and the like. For example, the aforementioned available media may include but are not limited to: U disk, removable hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, etc. A medium on which program code is stored.

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

Claims (19)

1. A method for accessing a network, comprising:

   Acquiring access information of the first network and the second network, where the access information of the first network and the second network includes a unified access control UAC parameter, and the UAC parameter includes an access identifier prohibition list and a prohibition factor;

   Access the first network based on the access parameters of the terminal device and according to the access information of the first network and/or the second network, where the access parameters of the terminal device include an access type and an access type. entry identification;

   The first network is a public land mobile network, and the second network is a cell access group associated with the public land mobile network; or, the first network is the cell access group, and the first network is the cell access group. The second network is the public land mobile network.
2. The method according to claim 1, wherein the access parameter of the terminal device further comprises a random number,

   The accessing to the first network based on the access parameters of the terminal device and according to the access information of the first network, includes:

   Whether to access the first network is determined according to the access identifier and/or the random number, and the UAC parameter of the first network corresponding to the access type.
3. The method according to claim 2, wherein the judging whether to access the first network comprises:

   determine that the access identifier satisfies the first condition, or

   determining that the access identifier and the random number satisfy the second condition, and accessing the first network;

   The first condition is that at least one of the access identifiers is not barred by the access identifier barring list of the first network;

   The second condition is that all the access identifiers are prohibited by the access identifier prohibition list of the first network, and the random number is smaller than the prohibition factor of the first network.
4. The method according to claim 1, wherein the access parameter of the terminal device further comprises a random number,

   The accessing to the first network based on the access parameters of the terminal device and according to the access information of the second network includes:

   Whether to access the first network is determined according to the access identifier and/or the random number, and the UAC parameter of the second network corresponding to the access type.
5. The method according to claim 4, wherein the judging whether to access the first network comprises:

   judging whether the access identifier and/or the random number satisfy the access conditions of the second network;

   In the case that the access condition of the second network is not satisfied, it is determined whether to access the first network.
6. The method according to claim 1, wherein the access parameter of the terminal device further comprises a random number,

   The accessing to the first network based on the access parameters of the terminal device and according to the access information of the first network and the access information of the second network, includes:

   According to the access identifier and/or the random number, and the UAC parameter of the second network corresponding to the access type, determine whether the access identifier and/or the random number satisfy the second network. access conditions to the network;

   If the access conditions of the second network are not met, access the first network according to the access identifier and random number, and the UAC parameter of the first network corresponding to the access type .
7. The method according to claim 6, characterized in that, in the said access identifier and/or the random number, and the UAC parameter of the second network corresponding to the access type, it is judged whether to connect or not. Before entering the second network, including:

   According to the access identifier and random number, and the UAC parameter of the first network corresponding to the access type, it is determined that the access condition of the first network is not satisfied.
8. A device for accessing a network, comprising:

   a transceiver unit, configured to acquire access information of the first network and the second network, where the access information of the first network and the second network includes a unified access control UAC parameter, and the UAC parameter includes an access identifier prohibition list and prohibition factors;

   a processing unit, configured to access the first network based on access parameters of the terminal device and according to the access information of the first network and/or the second network, where the access parameters of the terminal device include: Access category and access identification;

   The first network is a public land mobile network, and the second network is a cell access group associated with the public land mobile network; or, the first network is the cell access group, and the first network is the cell access group. The second network is the public land mobile network.
9. The apparatus according to claim 8, wherein the access parameter of the terminal device further comprises a random number, and the processing unit is further configured to obtain a random number according to the access identifier and/or the random number, and the The UAC parameter of the first network corresponding to the access type is used to determine whether to access the first network.
10. The apparatus according to claim 9, wherein the processing unit is further configured to:

    determine that the access identifier satisfies the first condition, or

    determining that the access identifier and the random number satisfy the second condition, and accessing the first network;

    The first condition is that at least one of the access identifiers is not prohibited by the access identifier prohibition list of the first network,

    The second condition is that all the access identifiers are prohibited by the access identifier prohibition list of the first network, and the random number is smaller than the prohibition factor of the first network.
11. The apparatus according to claim 8, wherein the access parameter of the terminal device further comprises a random number, and the processing unit is further configured to obtain a random number according to the access identifier and/or the random number, and the The UAC parameter of the second network corresponding to the access type is used to determine whether to access the first network.
12. The apparatus according to claim 11, wherein the processing unit is further configured to:

    judging whether the access identifier and/or the random number satisfy the access conditions of the second network;

    In the case that the access condition of the second network is not satisfied, it is determined whether to access the first network.
13. The apparatus according to claim 8, wherein the access parameter of the terminal device further comprises a random number, and the processing unit is further configured to:

    According to the access identifier and/or the random number, and the UAC parameter of the second network corresponding to the access type, determine whether the access identifier and/or the random number satisfy the second network access conditions to the network;

    In the case that the access conditions of the second network are not met, access the first network according to the access identifier and random number, and the UAC parameter of the first network corresponding to the access category .
14. The apparatus according to claim 13, wherein the processing unit is further configured to:

    Before judging whether to access the second network according to the access identifier and/or the random number, and the UAC parameter of the second network corresponding to the access category,

    According to the access identifier and random number, and the UAC parameter of the first network corresponding to the access type, it is determined that the access identifier and the random number do not meet the access conditions of the first network.
15. A device for accessing a network, comprising:

    memory for storing computer instructions;

    A processor for executing computer instructions stored in the memory to cause the apparatus for accessing a network to perform the method of any one of claims 1 to 7.
16. An apparatus for accessing a network, characterized in that, the apparatus for accessing a network is configured to execute the method according to any one of claims 1 to 7.
17. An apparatus for accessing a network, characterized by comprising: at least one processor and an interface circuit, and a computer program involved is executed in the at least one processor, so that the apparatus for accessing a network executes the method as claimed in claim 1 The method of any one of to 7.
18. A computer-readable storage medium, characterized in that a computer program is stored thereon, and when the computer program is executed by a device for accessing a network, the device for accessing a network executes the steps as claimed in claims 1 to 1. The method of any one of 7.
19. A computer program product, characterized in that the computer program product comprises: computer program code, which, when the computer program code is run on a computer, causes the computer to execute the method according to any one of claims 1 to 7 .

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