WO2023045766A1

WO2023045766A1 - Method for accessing network, and communication apparatus

Info

Publication number: WO2023045766A1
Application number: PCT/CN2022/117738
Authority: WO
Inventors: 李广俊; 刘仁崇; 聂广材; 孟祥涛
Original assignee: 华为技术有限公司
Priority date: 2021-09-22
Filing date: 2022-09-08
Publication date: 2023-03-30
Also published as: CN115915301A

Abstract

Provided in the present application is a method for accessing a network by a terminal device. A network device broadcasts, in a broadcast message, information of a terminal device allowed to access and information of a target cell, the terminal device compares it's own information with the information, which is carried in the broadcast message, of the terminal device allowed to access, and when the two pieces of information are consistent, a network can be accurately accessed; or, when the terminal device requests to access the network, the network device carries the information of the target cell in an RRC rejection message, such that the terminal device accurately accesses the network; or, the network device notifies the terminal device, which is in a connected state, of the information of the target cell by means of an RRC reconfiguration message, such that the terminal device accurately accesses the network, thereby improving the success rate of accurately accessing the network. In addition, by means of these methods, a large amount of manual input can be reduced, and a waste of air interface resources caused by frequent access attempts of a terminal device can also be reduced.

Description

Method and communication device for accessing network

This application claims the priority of the Chinese patent application with the application number 202111107964.2 and the application title "method and communication device for accessing the network" submitted to the State Intellectual Property Office on September 22, 2021, the entire contents of which are incorporated herein by reference Applying.

technical field

The present application relates to the technical field of wireless communication, and more specifically, to a method and a communication device for accessing a network.

Background technique

In the current network, when terminal devices or some devices are connected to the network, especially special-purpose terminals or devices, such as integrated access backhaul (IAB) devices, wireless driving network terminals, customer premise devices, etc. equipment, CPE), being able to quickly and accurately access the network is an important technical goal. However, due to coverage continuity and other reasons, scenarios such as same frequency same coverage and different frequency same coverage are very common, and interference is ubiquitous. The success rate of these devices to quickly and accurately access the network is low.

Contents of the invention

The present application provides a method for accessing a network and a communication device, which can enable terminal equipment to access the network quickly and accurately, and improve the success rate of accessing the network.

In a first aspect, a method for accessing a network is provided, and the method includes:

The terminal device receives an SIB message from the network device, where the SIB message includes information about the terminal device that the network device allows access to and information about a target cell, where the target cell is a cell provided by the network device;

The terminal device accesses the network device according to the information of the terminal devices allowed to be accessed by the network device and the information of the target cell.

The technical solution provided by this application can realize fast and accurate access of terminal equipment under the coverage of network equipment to a target cell. Especially for special-purpose terminals or equipment, such as IAB equipment, wireless driving network terminals, CPE, etc., it can quickly and accurately access the network. This also avoids interference caused by frequent network scans.

In addition, since the terminal equipment is managed and controlled through the configuration on the network equipment side, the configuration on the network side can be operated in batches through the network management, which greatly reduces the labor input.

In addition, the operations on the terminal equipment are reduced, and the maintenance requirements of the terminal equipment are reduced.

With reference to the first aspect, in some implementation manners of the first aspect, the terminal device accesses the network device according to the information of the terminal device allowed to access by the network device and the information of the target cell, including:

The terminal device determines that its own information is consistent with the information of the terminal devices that the network device allows access to;

The terminal equipment accesses the network equipment according to the information of the target cell.

In a second aspect, a method for accessing a network is provided. A terminal device sends a random access request message to a first network device, and the random access request message is used to request access to the first network device;

The terminal device receives a radio resource control RRC rejection message from the first network device, where the RRC rejection message includes information about the target cell, where the target cell is a cell provided by the second network device;

The terminal device accesses the second network device according to the information of the target cell.

The technical solution provided by this application can be configured in batches on the network side through the network management, which can reduce the operation of configuring terminal devices one by one, and greatly reduce the labor input.

In addition, it can reduce the number of repeated attempts of the terminal device to find the target cell, improve the efficiency of the terminal device's precise access to the network, and reduce the network access delay.

In addition, the terminal device can quickly find the target cell and initiate random access after a small number of access attempts, which reduces the waste of air interface resources and reduces air interface interference.

In a third aspect, a method for accessing a network is provided, and the method includes:

The terminal device accesses the first network device;

The terminal device receives a radio resource control RRC reconfiguration message from the first network device, where the RRC reconfiguration message includes information about a target cell, where the target cell is a cell provided by the second network device;

The technical solution provided by this application can be configured in batches on the network side through the network management, reducing the work of configuring terminal devices one by one and greatly reducing labor input.

In addition, it can also reduce the number of repeated attempts of the terminal device to find the target cell, improve the efficiency of the terminal device's precise access to the network, and reduce the network access delay.

In addition, in this solution, after the terminal device accesses the network, it obtains the information of the target cell, and then initiates random access to the target cell, which can reduce the waste of air interface resources caused by frequent access attempts, and reduce repeated access attempts on the air interface. number of entries.

Alternatively, the terminal devices in the above first to third aspects may also be special-purpose terminals or devices, such as IAB devices, wireless driving network terminals, or CPEs.

For the beneficial technical effects of the fourth aspect to the sixth aspect below, please refer to the technical effects of the corresponding solutions in the first aspect to the third aspect respectively, and details are not repeated here.

In a fourth aspect, a method for accessing a network is provided, and the method includes:

The network device sends a SIB message to the terminal device, where the SIB message includes information about the terminal device that the network device allows access and information about a target cell, where the target cell is a cell provided by the network device;

The network device receives a random access request message from the terminal device, and the random access request message is used to request access to the network device.

In a fifth aspect, a method for accessing a network is provided, and the method includes:

The first network device receives a random access request message from the terminal device, where the random access request message is used to request access to the first network device;

When the first network device determines that the terminal device is not allowed to access the terminal device, it sends a radio resource control RRC rejection message to the terminal device, and the RRC rejection message includes information about the target cell, where the target cell is the second The cell provided by the network device.

In a sixth aspect, a method for accessing a network is provided, and the method includes:

The first network device connects the terminal device to the network;

The first network device sends a radio resource control RRC reconfiguration message to the terminal device, where the RRC reconfiguration message includes information about a target cell, where the target cell is a cell provided by the second network device.

In some implementation manners of the foregoing aspects, the information about the terminal devices that the network device allows to access includes one or more of the following:

Serial number, media access control MAC address or International Mobile Equipment Identity (IMEI) of the terminal equipment;

and / or,

The information of the target cell includes the frequency point and identity of the target cell.

That is to say, the information of the terminal equipment that the network equipment allows to access includes one or more of the following:

Serial number, media access control MAC address or International Mobile Equipment Identity (IMEI) of the terminal equipment.

In addition, the information of the target cell may include the frequency point and identity of the target cell.

In a seventh aspect, a communication device is provided, and the communication device has a function of implementing the method in any possible implementation manner of the first aspect to the third aspect, or any one of these aspects. The functions described above may be implemented by hardware, or may be implemented by executing corresponding software on the hardware. The hardware or software includes one or more units corresponding to the above functions.

In an eighth aspect, a communication device is provided, and the communication device has a function of implementing the method in the fourth aspect to the sixth aspect, or any possible implementation manner of any one of these aspects. The functions described above may be implemented by hardware, or may be implemented by executing corresponding software on the hardware. The hardware or software includes one or more units corresponding to the above functions.

In a ninth aspect, a communication device is provided, including a processor and a memory. Optionally, a transceiver may also be included. Wherein, the memory is used to store computer programs, and the processor is used to call and run the computer programs stored in the memory, and control the transceiver to send and receive signals, so that the communication device performs the first aspect to the third aspect, or any one of these aspects A method in any possible implementation of an aspect.

Exemplarily, the communication device is a wireless communication terminal device.

According to a tenth aspect, a communication device is provided, including a processor and a memory. Optionally, a transceiver may also be included. Wherein, the memory is used to store computer programs, and the processor is used to invoke and run the computer programs stored in the memory, and control the transceiver to send and receive signals, so that the communication device performs the fourth aspect to the sixth aspect, or any one of these aspects A method in any possible implementation of an aspect.

Exemplarily, the communication device is a network device for wireless communication.

In an eleventh aspect, a communication device is provided, including a processor and a communication interface, the communication interface is used to receive data and/or information, and transmit the received data and/or information to the processor, the The processor processes the data and/or information, and the communication interface is also used to output the data and/or information processed by the processor, so that as in any one of the first to third aspects, or these aspects A method in any possible implementation of any aspect is performed.

In a twelfth aspect, a communication device is provided, including a processor and a communication interface, the communication interface is used to receive data and/or information, and transmit the received data and/or information to the processor, the The processor processes the data and/or information, and the communication interface is also used to output the data and/or information processed by the processor, so that as in any one of the fourth to sixth aspects, or these aspects A method in any possible implementation of any aspect is performed.

In a thirteenth aspect, a computer-readable storage medium is provided. Computer instructions are stored in the computer-readable storage medium. When the computer instructions are run on a computer, the following aspects as in the first to third aspects, or in these aspects A method in any possible implementation of any aspect is performed.

In a fourteenth aspect, a computer-readable storage medium is provided. Computer instructions are stored in the computer-readable storage medium. When the computer instructions are run on a computer, the following aspects as in the fourth to sixth aspects, or among these aspects, are provided. A method in any possible implementation of any aspect is performed.

In a fifteenth aspect, a computer program product is provided, the computer program product includes computer program code, when the computer program code is run on a computer, such that the first aspect to the third aspect, or any of these aspects A method in any possible implementation of an aspect is performed.

In a sixteenth aspect, a computer program product is provided, the computer program product includes computer program code, when the computer program code is run on a computer, the following aspects as in the fourth aspect to the sixth aspect, or any of these aspects A method in any possible implementation of an aspect is performed.

A seventeenth aspect provides a wireless communication system, including the communication device according to the seventh aspect, and/or the communication device according to the eighth aspect.

Description of drawings

FIG. 1 is a schematic diagram of a system architecture 1 of a wireless communication system applicable to the present application.

FIG. 2 is a schematic diagram of a system architecture 2 applicable to the wireless communication system of the present application.

Fig. 3 is a schematic flowchart of a method for accessing a network provided by the present application.

Fig. 4 is an exemplary flow chart of a method for accessing a network provided by the present application.

FIG. 5 is a schematic flow diagram of another terminal device accessing a network provided by the present application.

Fig. 6 is an exemplary flow chart of a method for accessing a network provided by the present application.

FIG. 7 is a schematic flow diagram of another terminal device accessing a network provided by the present application.

Fig. 8 is an example flowchart of a method for accessing a network provided by the present application.

Fig. 9 is a schematic block diagram of a communication device provided by the present application.

FIG. 10 is a schematic structural diagram of a communication device provided by the present application.

Detailed ways

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

The technical solution of the embodiment of the present application can be applied to various communication systems, including but not limited to: the fifth generation (the5th generation, 5G) system or new radio (new radio, NR) system, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, code division multiple access (CDMA), wireless fidelity , WIFI), device to device (device to device, D2D) communication system, vehicle-to-everything (V2X) communication system, machine to machine (machine to machine, M2M) communication system, machine type communication (machine type communication (MTC) system, Internet of things (IoT) communication system and future communication systems, such as the sixth generation mobile communication system, etc.

Referring to FIG. 1 , FIG. 1 is a schematic diagram of a system architecture 1 applicable to a wireless communication system of the present application. Figure 1 shows four base stations, namely gNB1, gNB2, gNB3 and gNB4. Taking each base station providing one cell as an example, these four base stations provide cell 1, cell 2, cell 3 and cell 4 respectively. Each cell covers one or more UEs. Due to coverage continuity and other reasons, scenarios such as same-frequency same-coverage and different-frequency-same-coverage are extremely common. For example, cell 1 and cell 3, cell 2 and cell 1, and cell 2 and cell 4 all have overlapping coverage areas. In addition, Fig. 1 also shows some target cells that the UE wishes to access accurately. For example, the target cell of UE1 is cell 1, and the target cell of UE2 is cell 2.

Referring to FIG. 2 , FIG. 2 is a schematic diagram of a system architecture 2 applicable to the wireless communication system of the present application. As shown in Figure 2, IAB (or IAB equipment) is a kind of wireless backhaul base station. Its particularity is that IAB must first establish a backhaul channel with the target macro station, and then provide wireless coverage services to the outside world. Similar to CPE, the difference It is the CPE that provides wireless fidelity (wireless fidelity, WIFI) coverage externally. The IAB provides external base station wireless signals, such as the fifth generation (5G) signals. The IAB is mainly used for the coverage extension of the macro station. It extends the remote coverage of the macro station with the help of the high-power multi-antenna receiving characteristics of its backhaul device, and changes the weak coverage area that was originally a far point for the macro station into a good one for the middle and near points. coverage area. Since IAB needs to establish a connection relationship with a fixed macro station, it usually requires accurate access to the target macro station to establish a return channel.

The above FIG. 1 and FIG. 2 are only examples, and the technical solutions of the present application can be applied to various communication systems including access network units. Exemplarily, the access network unit may be, for example, a gNB in FIG. 1 , or a donor macro station or an IAB as shown in FIG. 2 . In addition, the communication system may also include terminal equipment.

The terminal device involved in this embodiment of the present application can also be called a terminal, which can be a device with wireless transceiver function, which can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it can also be deployed on water (such as Ships, etc.); can also be deployed in the air (such as aircraft, balloons and satellites, etc.). The terminal device may be user equipment (user equipment, UE). Wherein, the UE includes a handheld device, a vehicle device, a wearable device or a computing device with a wireless communication function. Exemplarily, the UE may be a mobile phone (mobile phone), a tablet computer, or a computer with a wireless transceiver function, etc. In addition, the terminal device may also be a device capable of supporting the terminal to realize the function, such as a chip or a chip system, and the device may be installed in the terminal. In the technical solutions provided in the embodiments of the present application, the technical solutions provided in the embodiments of the present application are described by taking the terminal as an example in which the device for realizing the functions of the terminal is used. It should be understood that a terminal is a general term, including the most common mobile phone, CPE, integrated access backhaul (IAB) terminal, and the terminal device can also be a virtual reality (virtual reality, VR) terminal device, augmented reality (augmented reality, AR) Terminal equipment, wireless terminals in industrial control, wireless terminals in unmanned driving, wireless terminals in telemedicine, wireless terminals in smart grids, wireless terminals in smart cities, and smart homes wireless terminals, etc.

The network device involved in the embodiment of the present application includes a base station (base station, BS), which may be a device deployed in a wireless access network and capable of performing wireless communication with a terminal. Among them, the base station may have various forms, for example, a macro base station, a micro base station, a relay station, an access point, and a backhaul station. Exemplarily, the base station involved in this embodiment of the present application may be a base station in 5G or a base station in LTE. Among them, the base station in 5G can also be called a transmission reception point (transmission reception point, TRP) or a next generation base station (next generation noded, gNB). In the embodiment of the present application, the device for realizing the function of the network device may be a network device; it may also be a device capable of supporting the network device to realize the function, such as a chip or a chip system, and the device may be installed in the network device. In the technical solutions provided by the embodiments of the present application, the technical solutions provided by the embodiments of the present application are described by taking the apparatus for realizing the functions of the network equipment as network equipment and taking the network equipment as a base station as an example.

In the embodiment of the present application, the system-on-a-chip may be composed of chips, or may include chips and other discrete devices.

Some technical terms or concepts involved in this application are described or introduced in a unified manner below for the convenience of reading.

1. The process of terminal equipment booting into the network mainly includes 6 parts:

(1) PLMN selection, that is, operator selection;

(2) Cell search;

(3) System message reception;

(4) Cell selection and cell reselection;

(5) random access;

(6) Location registration.

The entire network access process of terminal equipment starts from selecting a PLMN to completing location registration.

2. Signaling process of master information block (MIB) or system information block (SIB) in 5G (or NR) network:

The 5G base station (ie, gNB) sends MIB information, and the MIB information mainly includes cell barring status information and physical layer information necessary to obtain further system information. Wherein, MIB information is carried in a physical broadcast channel (physical broadcast channel, PBCH), and is sent periodically.

The 5G base station sends a system information block type 1 (SIB1) message. The SIB1 message specifies the scheduling of other system information blocks and the information required for initial access. The SIB1 message is also generally referred to as remaining minimum system information (RMSI). Among them, the SIB1 message is carried on the physical downlink shared channel (PDSCH), which can be broadcast periodically, or notified to the UE in a dedicated way in the radio resource control (radio resource control, RRC) connection state.

After detecting the PBCH and MIB, the terminal device has completed downlink synchronization. Before performing uplink synchronization, the terminal needs to further receive a SIB1 message in order to obtain configuration information related to uplink synchronization. The SIB1 message is transmitted in the PDSCH and scheduled through a physical downlink control channel (PDDCH).

The system information block (SIB) message is used to notify the terminal device of the system information of the base station, and there are multiple types, for example, SIB1, SIB3, SIB4, SIB5, SIB6, and SIB9. This article mainly deals with SIB1 messages. There are many information elements (IE) in SIB1, and configuration information related to subsequent uplink synchronization is contained in servingCellConfigCommonIE.

Due to reasons such as the continuity of live network coverage, scenarios such as same-frequency same-coverage and different-frequency-same-coverage are common, and interference is ubiquitous. The efficiency of accurate access of terminal equipment to the network is low.

An existing solution for terminal network access is to pre-configure on the terminal side, that is, to configure the frequency point and cell information that the terminal needs to access preferentially on the terminal device in advance. This scheme of controlling terminal devices to access the network through manual configuration has obvious disadvantages. For example, the terminal devices are mainly manually configured one by one, and the manual workload is too large. Moreover, this manual configuration in advance is all static configuration. When the target base station changes, the configuration needs to be manually changed again, which is too inflexible. Another solution is to access the network through blind search of terminal equipment. The disadvantages of blind search access network are also many. For example, terminal equipment may access non-target cells. For ordinary terminal equipment, access to non-target cells can continue to work. However, for some special-purpose terminals or equipment For example, IAB equipment, wireless driving network terminals, and CPE, etc., will not be able to provide services if they access non-target cells. Another example is that it takes a long time to access the network. In addition, if you access a non-target cell, you need to log out of the network and search again before entering the network. For another example, interference to the outside world, frequent attempts to access the network will consume air interface resources, cause interference to other external terminals, and waste access capacity.

Therefore, how to quickly and accurately access a target cell for a terminal device is an important technical goal.

For this reason, this application provides some solutions for terminal equipment to access the network, which can enable the terminal equipment to quickly and accurately access the network (or target cell), and can avoid or optimize the above-mentioned problems.

It should be noted that, in the embodiments of the present application, the terminal device is used as an example to describe the method for accessing the network provided by the present application. However, these methods for accessing the network are also applicable to other devices that need to access the network, for example, IAB equipment, CPE, and wireless driving network terminals.

The technical solution of the present application is introduced below.

In this application, three methods for terminal devices to access the network are respectively provided, which are respectively the following scheme 1, scheme 2 and scheme 3.

plan 1

The network device notifies the information of the terminal device that can initiate random access through the extension field in the SIB1 message, or in other words, the extension field in the SIB1 message indicates the information of the terminal device that is allowed to access the network device.

Specifically, the SIB1 message includes an extension field, and the extension field is used to indicate information about terminal devices that are allowed to access. For example, device serial number (serial number, SN), media access control (media access control, MAC) address, international mobile equipment identity number (international mobile equipment identity number, IMEI), etc.

Exemplarily, some fields of the SIB1 information element structure may be as follows:

Exemplarily, the extension field of the SIB1 message is the italic part in the field, that is, the nonCriticalExtension field.

Based on Solution 1, this application provides the flow of the terminal device accessing the network shown in FIG. 3 .

Referring to FIG. 3 , FIG. 3 is a schematic flowchart of a method for accessing a network provided by the present application.

310. The network device sends the SIB message to the terminal device, and the terminal device receives the SIB message from the network device.

Wherein, the SIB message includes the information of the terminal equipment allowed to be accessed by the network equipment and the information of the target cell, where the target cell is a cell provided by the network equipment.

Specifically, the SIB message here may be a SIB1 message.

Exemplarily, the information about the terminal devices that the network device allows to access may include one or more of the following:

Device serial number, MAC address and IMEI.

320. The terminal device accesses the network device according to the information about the terminal devices allowed to access by the network device and the information about the target cell.

A specific flow chart of scheme 1 is given below in conjunction with FIG. 4 .

Referring to FIG. 4 , FIG. 4 is an exemplary flow chart of a method for accessing a network provided by the present application.

401. The network device configures information about terminal devices that are allowed to access.

Exemplarily, the information of the terminal equipment may be identifier (identifier, ID) information of the terminal equipment, such as equipment serial number, media access control (media access control, MAC) address, international mobile equipment identity (international mobile equipment identity number) , IMEI) etc.

It should be understood that the ID information of the terminal device may generally represent the serial number of the terminal device. In a network covered by a base station, the ID information of each terminal device needs to be unique.

402. The network device sends a physical broadcast channel (physical broadcast channel, PBCH), and the PBCH includes MIB information.

403. The network device sends a SIB1 message, where the SIB1 message includes information about terminal devices allowed to access configured by the network device and information about the target cell.

Exemplarily, the information of the target cell may include the frequency point and identity of the target cell.

The information of the terminal device and the information of the target cell may be included in the above-mentioned extension field of the SIB1 message.

Correspondingly, the terminal device receives and parses the SIB1 message, and obtains the information carried in the extension field of the SIB1 message.

404. According to the SIB1 message, the terminal device determines that its own information is consistent with the information of the terminal device allowed to access carried in the SIB1 message.

Specifically, according to the extension field in the SIB1 message, the terminal device can learn the information of the terminal device that is allowed to access configured by the network device, so as to determine whether it is an admitted terminal device. If the information of the terminal device itself is consistent with the information of the terminal device carried in the SIB1 message, the terminal device initiates random access to the network device; if more than the same, continue scanning.

For example, the extension field of the SIB1 message carries the SN of the terminal device that is allowed to access. The terminal device checks whether its own SN is consistent with the SN carried in the extension field of the SIB1 message. If they are consistent, it indicates that the terminal device is an access-allowed terminal device, and random access is initiated, as in step 405 . If they are inconsistent, it means that the terminal equipment is not allowed to be accessed by the network equipment, and the terminal equipment continues to scan other frequency points.

405. The terminal device sends a random access request message to the network device.

Subsequently, the terminal device completes the network access, which will not be repeated here.

Through scheme 1, the terminal equipment under the coverage of the base station can quickly and accurately access the target cell. Especially for special-purpose terminals or devices, such as IAB devices, they can quickly access the network to avoid interference caused by frequent network scanning.

It can be seen that in Solution 1, the terminal equipment is managed and controlled on the base station side, and the base station can be operated in batches through the network management, which greatly reduces labor input.

In addition, because Solution 1 is implemented through the configuration on the base station side, when the terminal equipment moves, it only needs to configure the information of the base station through the network management, which can avoid on-site operation of some terminal equipment and reduce the manual workload.

In addition, the operation of terminal equipment is reduced, and the maintenance requirements of terminal equipment are reduced.

Scenario 2

The network device binds the terminal information of the terminal device that is allowed to access. When the network device receives the network access request of the terminal device, it judges whether the terminal device is a terminal device that is allowed to be accessed by the network device side. If the terminal device is not the network device side A terminal device that is allowed to access sends an RRC rejection message to the terminal device, and the RRC rejection message carries the information of the target cell.

Exemplarily, some fields of the RRC rejection message may be as follows:

Specifically, the RRC rejection message includes an extension field, and the extension field carries information of the target cell, for example, the identity and frequency of the target cell. After parsing the RRC rejection message, the terminal device obtains the information of the target cell, and then initiates cell access to the target cell directly at the frequency point of the target cell.

The extension field is like the nonCriticalExtension field in the RRC reject message.

Based on solution 2, this application provides the flow of the terminal device accessing the network shown in FIG. 5 .

Referring to FIG. 5 , FIG. 5 is a schematic flowchart of another terminal device accessing a network provided by the present application.

510. The terminal device sends a random access request message to the first network device, and the first network device receives the random access request message from the terminal device.

Wherein, the random access request message is used to request access to the first network device.

520. The first network device sends an RRC rejection message to the terminal device, and the terminal device receives the RRC rejection message from the first network device.

Wherein, the RRC rejection message includes the information of the target cell, and the target cell is a cell provided by the second network device.

530. The terminal device accesses the second network device according to the information of the target cell.

A specific flowchart of scheme 2 is given below in conjunction with FIG. 6 .

Referring to FIG. 6 , FIG. 6 is an example flowchart of a method for accessing a network provided by the present application.

601. The network device configures information about terminal devices that are allowed to access.

Specifically, when configuring the terminal device information, the network device configures the identification information of the terminal device that is allowed to access, for example, the serial number, MAC address, IMEI, etc. of the terminal device.

Solution 2 involves two network devices, which are respectively denoted as a first network device and a second network device. In step 410, the first network device and the second network device respectively configure information about terminal devices that are allowed to access.

602. The first network device sends a PBCH, where the PBCH includes MIB information to broadcast its own system information.

603. The first network device sends the SIB message.

The terminal device receives the MIB information and the SIB message from the first network device.

604. After completing downlink synchronization, the terminal device initiates random access to the first network device.

605. The terminal device sends a first RRC request message to the first network device, where the first RRC request message may be a random access request message, and is used to request access to the network.

606. When the first network device finds that the terminal device that initiates the random access is not a configured terminal device that allows access, the first network device sends an RRC rejection message, where the RRC rejection message includes information about the target cell.

607. The terminal device initiates random access to the target cell according to the information of the target cell in the RRC rejection message.

Specifically, the terminal device re-scans according to the information of the target cell carried in the RRC rejection message, and initiates random access to the target cell at the frequency of the target cell.

608. The terminal device sends a second RRC request message to the second network device (ie, the target network device), where the second RRC request message may be a random access request message, and is used to request access to the network.

609. The second network device determines that the terminal device that initiates the random access is a terminal device configured by itself to allow access, and allows the terminal device to access.

With solution 2, the terminal device can quickly find the target cell and initiate random access after a small number of access attempts, which reduces the waste of air interface resources and reduces air interface interference.

It can be seen that in solution 2, batch configuration on the network side through the network management can reduce the operation of configuring terminal devices one by one, and greatly reduce labor input.

In addition, solution 2 can reduce the number of repeated attempts of the terminal device to find the target cell, improve the efficiency of the terminal device's precise access to the network, and reduce the network access delay.

Option 3

The terminal equipment in the connected state obtains the information of the target cell through the RRC reconfiguration message, and initiates random access to the target cell.

Specifically, the network device carries the information of the target cell in the RRC reconfiguration message, for example, the frequency point and identity of the target cell.

Exemplarily, some fields of the RRC reconfiguration message may be as follows:

The extension field in the RRC reconfiguration message may be a nonCriticalExtension field, and the extension field includes the information of the target cell.

Based on Solution 3, this application provides the flow of the terminal device accessing the network shown in FIG. 5 .

Referring to FIG. 7 , FIG. 7 is a schematic flowchart of another terminal device accessing a network provided by the present application.

It should be noted that in solution 3, the terminal equipment has entered the connected state, and the information of the target cell is issued through an RRC reconfiguration message in the connected state.

710. The terminal device accesses the first network device.

720. The first network device sends an RRC reconfiguration message to the terminal device, and the terminal device receives the RRC reconfiguration message from the first network device.

Wherein, the RRC reconfiguration message includes the information of the target cell, and the target cell is a cell provided by the second network device.

730. The terminal device accesses the second network device according to the information of the target cell.

A specific flow chart of scheme 3 is given below in conjunction with FIG. 8 .

Referring to FIG. 8 , FIG. 8 is an example flowchart of a method for accessing a network provided by the present application.

801. The network device configures terminal device information and target cell information.

Solution 3 involves two network devices, which are respectively denoted as a first network device and a second network device. In step 801, the first network and the second network device respectively configure information of terminal devices that are allowed to access.

802. The first network device sends a PBCH, where the PBCH includes MIB information.

803. The first network device sends the SIB message.

804. After completing downlink synchronization, the terminal device initiates random access.

805. The terminal device sends a first RRC request message to the first network device, where the first RRC request message is used to request access to the network, and specifically refers to accessing the first network device.

Here, the detailed flow of the terminal device accessing the first network device is omitted, and the existing random access flow can be referred to.

806. The terminal device receives an RRC reconfiguration message from the first network device, where the RRC reconfiguration message includes information about the target cell.

807. The terminal device parses the information of the target cell, and scans the frequency point of the target cell.

808. The terminal device releases the RRC connection with the first network device according to the RRC reconfiguration message.

Specifically, the terminal device may send an RRC release message to the first network device, where the RRC release message is used to request release of the RRC connection with the first network device.

Here, the detailed process of releasing the RRC connection between the terminal device and the first network device is omitted, and reference may be made to the existing RRC connection release process.

809. The terminal device sends a second RRC request message to the target network device (or called the second network device), where the second RRC request message is used to request access to the network (or to request access to the second network device).

In a case where the second network device determines that the terminal device that initiates the random access is a terminal device that is allowed to access by itself, the second network device allows the terminal device to access the network.

It should be noted that the process in Figure 8 is different from the process of cell handover. The premise of cell handover is that the source cell and the target cell are adjacent cells. The cell handover can be completed only when the handover conditions are met.

In solution 3, by carrying the information of the target cell in the reconfiguration message, the terminal device withdraws from the network of the base station where it resides, and then joins the network to the target base station.

Using solution 3, after the terminal device accesses the network, it obtains the information of the target cell, and then initiates random access to the target cell, which can reduce the waste of air interface resources caused by frequent access attempts and reduce the number of repeated access attempts on the air interface .

It can be seen that in solution 3, batch configuration can be performed on the network side through the network management, reducing the work of configuring terminal devices one by one, and greatly reducing labor input. In addition, it can also reduce the number of repeated attempts of the terminal device to find the target cell, improve the efficiency of the terminal device's precise access to the network, and reduce the network access delay.

The method for accessing the network of the terminal equipment provided by the present application has been described in detail above, and the communication device provided by the present application will be introduced below.

Referring to FIG. 9, FIG. 9 is a schematic block diagram of a communication device provided in this application. As shown in FIG. 9 , the communication device 1000 includes a processing unit 1100 , a receiving unit 1200 and a sending unit 1300 .

Optionally, the communication apparatus 1000 may correspond to the terminal device in this embodiment of the present application.

In some solutions, each unit of the communication device 1000 is used to realize the following functions:

The receiving unit 1200 is configured to receive an SIB message from a network device, where the SIB message includes information about a terminal device that the network device allows access to and information about a target cell, where the target cell is a cell provided by the network device ;

The processing unit 1100 is configured to access the network device according to the information of the terminal devices allowed to be accessed by the network device and the information of the target cell.

Optionally, as an embodiment, the processing unit 1100 is specifically configured to:

Determine that its own information is consistent with the information of the terminal equipment that the network equipment allows access to;

Access to the network device according to the information of the target cell.

Optionally, as an embodiment, the information about the terminal devices that are allowed to be accessed by the network device includes one or more of the following:

The serial number, MAC address or IMEI of the terminal device;

and / or,

The information of the target cell includes a frequency point and an identifier of the target cell.

Optionally, in other solutions, each unit of the communication device 1000 has the following functions:

A sending unit 1300, configured to send a random access request message to the first network device, where the random access request message is used to request access to the first network device;

A receiving unit 1200, configured to receive an RRC rejection message from the first network device, where the RRC rejection message includes information about a target cell, where the target cell is a cell provided by the second network device;

The processing unit 1100 is configured to access the second network device according to the information of the target cell.

Optionally, as an embodiment, the information of the target cell includes a frequency point and an identifier of the target cell.

a processing unit 1100, configured to access the first network device;

A receiving unit 1200, configured to receive an RRC reconfiguration message from the first network device, where the RRC reconfiguration message includes information about a target cell, where the target cell is a cell provided by the second network device;

And, the processing unit 1100 is further configured to access the second network device according to the information of the target cell.

In each of the above implementation manners, the receiving unit 1200 and the sending unit 1300 may also be integrated into a transceiver unit, which has the functions of receiving and sending at the same time, which is not limited here.

In each embodiment where the communication apparatus 1000 corresponds to a terminal device, the processing unit 1100 is configured to perform processing and/or operations implemented internally by the terminal device except for the actions of sending and receiving. The receiving unit 1200 is configured to perform an action of receiving, and the sending unit 1300 is configured to perform an action of sending.

Optionally, the communications apparatus 1000 may correspond to the network device (or the first network device) in this embodiment of the present application.

Optionally, in some solutions, each unit of the communication device 1000 is used to implement the following functions:

The sending unit 1300 is configured to send a SIB message to the terminal device, where the SIB message includes information about terminal devices that the communication device allows access to and information about a target cell, where the target cell is a cell provided by the communication device;

The receiving unit 1200 is configured to receive a random access request message from the terminal device, where the random access request message is used to request access to the communication device.

Optionally, as an embodiment, the information of the terminal equipment that the communication device allows access includes one or more of the following:

The serial number, MAC address or IMEI of the terminal device;

and / or,

A receiving unit 1200, configured to receive a random access request message from a terminal device, where the random access request message is used to request access to the communication device;

The processing unit 1100 is configured to send an RRC rejection message to the terminal device when it is determined that the terminal device is a terminal device that is not allowed to access, and the RRC rejection message includes information about the target cell, wherein the The target cell is a cell provided by the second network device.

Optionally, as an embodiment, the information of the target cell includes the frequency point and identity of the target cell

a processing unit 1100, configured to connect the terminal device to the network;

The sending unit 1300 is configured to send an RRC reconfiguration message to the terminal device, where the RRC reconfiguration message includes information of a target cell, where the target cell is a cell provided by the second network device.

In each embodiment where the communication apparatus 1000 corresponds to a network device (or a first network device), the processing unit 1100 is configured to perform processing and/or operations implemented internally by the network device except for sending and receiving actions. The receiving unit 1200 is configured to perform an action of receiving, and the sending unit 1300 is configured to perform an action of sending.

Referring to FIG. 10 , FIG. 10 is a schematic structural diagram of a communication device provided in the present application. As shown in FIG. 10 , the communication device 10 includes: one or more processors 11 , one or more memories 12 and one or more communication interfaces 13 . The processor 11 is used to control the communication interface 13 to send and receive signals, the memory 12 is used to store a computer program, and the processor 11 is used to call and run the computer program from the memory 12, so that the communication device 10 executes the method described in each method embodiment of the present application. Processing performed by an end device or network device.

For example, the processor 11 may have the functions of the processing unit 1100 shown in FIG. 9 , and the communication interface 13 may have the functions of the receiving unit 1200 and/or the sending unit 1300 shown in FIG. 9 . Specifically, the processor 11 may be used to perform processing or operations internally performed by the communication device, and the communication interface 13 is used to perform sending and/or receiving operations by the communication device.

In an implementation manner, the communication device 10 may be the terminal device in the method embodiment. In this implementation, the communication interface 13 may be a transceiver. Transceivers may include receivers and/or transmitters. Optionally, the processor 11 may be a baseband device, and the communication interface 13 may be a radio frequency device.

In another implementation, the communication device 10 may be a chip (or chip system) installed in a terminal device. In this implementation manner, the communication interface 13 may be an interface circuit or an input/output interface.

In an implementation manner, the communication device 10 may be the network device in the method embodiment. In this implementation, the communication interface 13 may be a transceiver. Transceivers may include receivers and/or transmitters. Optionally, the processor 11 may be a baseband device, and the communication interface 13 may be a radio frequency device.

In another implementation, the communication device 10 may be a chip (or chip system) installed in a network device. In this implementation manner, the communication interface 13 may be an interface circuit or an input/output interface.

Wherein, the dotted box behind the device (for example, processor, memory or communication interface) in FIG. 10 indicates that there may be more than one device.

Optionally, the memory and the processor in the foregoing apparatus embodiments may be physically independent units, or the memory and the processor may also be integrated together, which is not limited herein.

In addition, the present application also provides a computer-readable storage medium, where computer instructions are stored in the computer-readable storage medium, and when the computer instructions are run on the computer, the operations performed by the terminal device in each method embodiment of the present application are and/or processing is performed.

The present application also provides a computer-readable storage medium, where computer instructions are stored in the computer-readable storage medium, and when the computer instructions are run on the computer, the operations performed by the network device in each method embodiment of the present application and/or or processing is performed.

In addition, the present application also provides a computer program product. The computer program product includes computer program codes or instructions. When the computer program codes or instructions are run on the computer, the operations performed by the terminal device in each method embodiment of the present application and/or or processing is performed.

The present application also provides a computer program product. The computer program product includes computer program codes or instructions. When the computer program codes or instructions are run on the computer, the operations and/or processing performed by the network device in each method embodiment of the present application are be executed.

In addition, the present application also provides a chip, the chip includes a processor, the memory for storing computer programs is set independently of the chip, and the processor is used for executing the computer programs stored in the memory, so that the terminal equipment installed with the chip Execute the operations and/or processing performed by the terminal device in any method embodiment.

Further, the chip may further include a communication interface. The communication interface may be an input/output interface, or an interface circuit or the like. Further, the chip may further include the memory.

The present application also provides a chip, the chip includes a processor, the memory for storing computer programs is set independently of the chip, and the processor is used for executing the computer programs stored in the memory, so that the network equipment installed with the chip executes any Operations and/or processing performed by a network device in a method embodiment.

Optionally, there may be one or more processors, one or more memories, and one or more memories.

In addition, the present application also provides a communication device (for example, it may be a chip or a chip system), including a processor and a communication interface, the communication interface is used to receive (or be referred to as input) data and/or information, and will receive The received data and/or information are transmitted to the processor, and the processor processes the data and/or information, and the communication interface is also used to output (or be referred to as output) the data and/or processed by the processor or information, so that the operation and/or processing performed by the terminal device in any method embodiment is performed.

The present application also provides a communication device (for example, it may be a chip or a chip system), including a processor and a communication interface, the communication interface is used to receive (or be referred to as input) data and/or information, and the received The data and/or information are transmitted to the processor, and the processor processes the data and/or information, and the communication interface is also used to output (or be referred to as output) the data and/or information processed by the processor , so that the operation and/or processing performed by the network device in any method embodiment is performed.

In addition, the present application also provides a communication device, including at least one processor, the at least one processor is coupled to at least one memory, and the at least one processor is configured to execute computer programs or instructions stored in the at least one memory, The communication apparatus is made to perform the operation and/or processing performed by the terminal device in any one method embodiment.

The present application also provides a communication device, including at least one processor, the at least one processor is coupled to at least one memory, and the at least one processor is used to execute the computer program or instruction stored in the at least one memory, so that the The above communication apparatus executes the operation and/or processing performed by the network device in any one method embodiment.

In addition, the present application also provides a communication device, including a processor and a memory. Optionally, a transceiver may also be included. Wherein, the memory is used to store computer programs, and the processor is used to call and run the computer programs stored in the memory, and control the transceiver to send and receive signals, so that the communication device performs the operation and/or processing performed by the terminal device in any method embodiment .

The present application also provides a communication device, including a processor and a memory. Optionally, a transceiver may also be included. Wherein, the memory is used to store computer programs, and the processor is used to call and run the computer programs stored in the memory, and control the transceiver to send and receive signals, so that the communication device performs the operation and/or processing performed by the network device in any method embodiment .

The memory in the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories. Among them, the non-volatile memory can be read-only memory (read-only memory, ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically programmable Erases programmable read-only memory (electrically EPROM, EEPROM) or flash memory. The volatile memory can be random access memory (RAM), which acts as external cache memory. By way of illustration and not limitation, many forms of RAM are available such as static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, 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 connection dynamic random access memory (synchlink DRAM, SLDRAM ) and direct memory bus random access memory (direct rambus RAM, DRRAM). It should be noted that the memory of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.

The methods provided in the foregoing embodiments may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product may comprise one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. 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 transmitted from a website, computer, server or data center Transmission to another website site, computer, server, or data center by wired (eg, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.) means. 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 or a data center integrated with one or more available media.

In order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, numbers such as "first" and "second" are used to distinguish the same or similar items with basically the same function and effect. For example, the first network device and the second network device are only used to distinguish two different network devices. Those skilled in the art can understand that numbers such as "first" and "second" do not limit the number and execution order, and words such as "first" and "second" do not necessarily mean that they are different.

In the embodiments of the present application, "multiple" means two or more. In addition, "and/or" describes the association relationship of associated objects, which means that there can be three kinds of relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone, where A , B can be singular or plural. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one item (unit) of a, b, or c may represent: a, b, c; a and b; a and c; b and c; or a and b and c. Where a, b, c can be single or multiple.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not 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 ways. For example, the device 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 can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

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

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

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disc and other media that can store program codes. .

The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims

A method for accessing a network, comprising:

The terminal device receives a system information block SIB message from the network device, where the SIB message includes information about terminal devices that the network device allows access to and information about a target cell, where the target cell is a cell provided by the network device;

The terminal device accesses the network device according to the information of the terminal devices allowed to be accessed by the network device and the information of the target cell.
The method according to claim 1, wherein the terminal device accesses the network device according to the information of the terminal device allowed to access by the network device and the information of the target cell, comprising:

The terminal device determines that its own information is consistent with the information of the terminal devices allowed to be accessed by the network device;

The terminal device accesses the network device according to the information of the target cell.
The method according to claim 1 or 2, wherein the information of the terminal equipment that the network equipment is allowed to access includes one or more of the following:

The serial number, media access control MAC address or International Mobile Equipment Identity (IMEI) of the terminal equipment;

and / or,

The information of the target cell includes a frequency point and an identifier of the target cell.
A method for accessing a network, comprising:

The terminal device sends a random access request message to the first network device, where the random access request message is used to request access to the first network device;

The terminal device receives a radio resource control RRC rejection message from the first network device, where the RRC rejection message includes information about a target cell, where the target cell is a cell provided by the second network device;

The terminal device accesses the second network device according to the information of the target cell.
The method according to claim 4, characterized in that the information of the target cell includes the frequency point and identity of the target cell.
A method for accessing a network, comprising:

The terminal device accesses the first network device;

The terminal device receives a radio resource control RRC reconfiguration message from the first network device, where the RRC reconfiguration message includes information about a target cell, where the target cell is a cell provided by the second network device;

The terminal device accesses the second network device according to the information of the target cell.
The method according to claim 6, wherein the information of the target cell includes the frequency point and the identity of the target cell.
A method for accessing a network, comprising:

The network device sends a system information block SIB message to the terminal device, where the SIB message includes information about the terminal device that the network device allows access to and information about a target cell, where the target cell is a cell provided by the network device;

The network device receives a random access request message from the terminal device, where the random access request message is used to request access to the network device.
The method according to claim 8, wherein the information of the terminal equipment that the network equipment is allowed to access includes one or more of the following:

The serial number, media access control MAC address or International Mobile Equipment Identity (IMEI) of the terminal equipment;

and / or,

The information of the target cell includes a frequency point and an identifier of the target cell.
A method for accessing a network, comprising:

The first network device receives a random access request message from the terminal device, where the random access request message is used to request access to the first network device;

When the first network device determines that the terminal device is a terminal device that is not allowed to access, sending a radio resource control RRC rejection message to the terminal device, where the RRC rejection message includes information about the target cell, where , the target cell is a cell provided by the second network device.
The method according to claim 10, characterized in that the information of the target cell includes the frequency point and identity of the target cell.
A method for accessing a network, comprising:

The first network device connects the terminal device to the network;

The first network device sends a radio resource control RRC reconfiguration message to the terminal device, where the RRC reconfiguration message includes information about a target cell, where the target cell is a cell provided by the second network device.
The method according to claim 12, wherein the information of the target cell includes the frequency point and the identity of the target cell.
A communication device, characterized in that it includes at least one processor, the at least one processor is coupled to at least one memory, and the at least one processor is configured to execute a computer program or instructions stored in the at least one memory, so that The communication device executes the method according to any one of claims 1-7, or the method according to any one of claims 8-13.
A chip, characterized in that it includes a processor and a communication interface, the communication interface is used to receive data and/or information, and transmit the received data and/or information to the processor, and the processor processes The data and/or information to perform the method according to any one of claims 1-7, or the method according to any one of claims 8-13.
A computer-readable storage medium, characterized in that computer instructions are stored in the computer-readable storage medium, and when the computer instructions are run on a computer, the method according to any one of claims 1-7, Or the method as described in any one of claims 8-13 is realized.
A computer program product, characterized in that the computer program product comprises computer program code, when the computer program code is run on a computer, the method according to any one of claims 1-7, or as described in The method of any one of claims 8-13 is implemented.