WO2017113402A1

WO2017113402A1 - Network access method and access device

Info

Publication number: WO2017113402A1
Application number: PCT/CN2015/100330
Authority: WO
Inventors: 罗海燕; 张宏卓; 石小丽; 彭文杰
Original assignee: 华为技术有限公司
Priority date: 2015-12-31
Filing date: 2015-12-31
Publication date: 2017-07-06

Abstract

A network access method and access device, implementation examples of the method comprising: a first access device receiving a first message from a terminal device, wherein the first message carries first identification information, and the first access device does not support a high-layer protocol; and if the terminal device is allowed to access the network, the first access device sending a second message to the terminal device, wherein the second message carries second identification information, and the second identification information is the same as the first identification information. The terminal device as in embodiments of the present invention is capable of not using an LTE air interface in the process of accessing a network, preventing the issue whereby the terminal devices all using the LTE air interface to access the network causes the load of the LTE air interface to be excessively high. Therefore, the present invention may reduce load for LTE air interfaces, thereby reducing occurrences of random access channel collisions in LTE networks.

Description

Method for accessing network and access device

Technical field

The present invention relates to the field of communications technologies, and in particular, to a method for accessing a network and an access device.

Background technique

The era of next-generation mobile communication technology is coming. In order to make maximum use of an existing communication system, such as a Long Term Evolution (LTE) communication system, a terminal device supporting the next generation mobile communication technology can access the network through an air interface of the LTE system. The air interface of the LTE system is used for communication between the base station and the terminal. Therefore, the air interface can be simply referred to as an LTE air interface or an air interface of the LTE system.

However, the terminal equipment supporting the next-generation mobile communication technology and the terminal equipment supporting the LTE technology are all connected to the network through the air interface of the LTE system, which will result in a high air interface load of the LTE system, which in turn causes multiple terminal devices to pass through the air interface of the LTE system. When accessing the network, there are more conflicts in the random access channel (RACH) of the LTE system.

In order to reduce the air interface load of the LTE system and reduce the collision of the random access channel, an air interface of the independent next-generation mobile communication system can be set, and the terminal device accesses the base station of the next-generation mobile communication system through the air interface, thereby accessing the network. However, considering that the base station of the next-generation mobile communication system may not work independently, it needs to work with the upper layer of the LTE base station. In the LTE system, the random access conflict is solved by reading the content of the Radio Resource Control (RRC) layer. Under this particular mechanism, the problem of how terminal devices access the network through the air interface of the next generation mobile communication system needs to be solved.

Summary of the invention

The embodiment of the invention provides a method for accessing a network and an access device.

An embodiment of the present invention provides a method for accessing a network, including:

The first access device receives the first message from the terminal device, where the first message is used to request access to the network, and the first message carries the first identifier information, where the first identifier information is used to determine whether to allow The terminal device accesses the network, where the first access device does not support a high layer protocol;

If the terminal device is allowed to access the network, the first access device sends a second message to the terminal device, where the second message is a response message of the first message, and the second message carries the second message. Two identification information, wherein the second identification information is the same as the first identification information.

The first identification information and the second identification information may use a SAE-Temporary Mobile Subscriber Identity (S-TMSI) or a random value. If the terminal device is not allowed to access the network, the second message is not sent to the terminal device. The upper layer protocol is a protocol that is not supported by the first access device relative to the underlying protocol in the layer 7 protocol, for example, a non-access stratum (NAS) protocol, an RRC layer protocol, and an internet protocol (Internet Protocol). , IP), Packet Data Convergence Protocol (PDCP), etc. The second message may be a message dedicated to the delivery of the second identification information or may be carried by a message already in the process of using the access network.

In a possible implementation manner, the method further includes:

The first access device establishes a communication interface with a second access device, and the second access device supports a high layer protocol.

After the communication interface is established, the first access device may send the uplink data from the terminal to the second access device by using the foregoing communication interface, and may also receive, by using the communication interface, the second access device and send the foregoing to the terminal device. Downstream data.

In a possible implementation manner, the first message is a radio resource control RRC connection request message; and the second message is an RRC connection setup message.

The RRC connection request carries the first identifier information, and the RRC connection setup message carries the second identifier information, which can provide better compatibility between the scheme of the embodiment of the present invention and the random access procedure in the 4G network.

In a possible implementation manner, it is provided that, by the first access device itself, whether the terminal device is allowed to access the network: the first identifier information is included in an outer air interface protocol layer of the RRC connection request message;

If the terminal device is allowed to access the network, the first access device sends the second message to the terminal device, including:

The first access device parses the outer air interface protocol layer to obtain the first identifier information;

After the first access device determines that the terminal device is allowed to access the network, send the terminal device to the terminal device. Send a second message.

The first access device of the solution in this embodiment can independently determine whether to allow the terminal device to access the network, and reduce the resource of the message occupying the control plane between the network side devices. In this embodiment, if the first message is not an RRC connection request message, the first identifier information is included in an outer air interface protocol layer of the first message; correspondingly, the second identifier information may be included in an outer layer of the second message. In the air interface protocol layer.

In a possible implementation manner, an implementation scheme is provided, where the first access device determines whether the terminal device is allowed to access the network, and the second identifier information is returned accordingly: the second identifier information is included in the RRC connection setup. The outer air interface protocol layer of the message.

In a possible implementation, the method for determining, by the second access device, whether the terminal device is allowed to access the network is provided: the first identifier information is included in the RRC connection request message;

The method further includes:

Sending, by the first access device, the first message to the second access device;

The first access device receives the second identifier information that is sent by the second access device after the terminal device is allowed to access the network.

In this embodiment, the first access device does not need to increase the decision function, and still implements the decision function of the second access device to implement the compatibility of the second access device function.

In a possible implementation, a specific implementation scheme for carrying the second identifier information is also provided, where the first access device receives the second access device and allows the terminal device to be sent after accessing the network. The second identification information includes:

Receiving, by the first access device, an RRC connection setup message that is sent by the second access device after the terminal device is allowed to access the network, where the second identifier information is included in the RRC connection setup message;

The first access device sends a second message to the terminal device, where the second message carries the second identifier information, including:

The first access device sends an RRC connection setup message carrying the second identifier information to the terminal device.

In a possible implementation manner, a scheme for controlling the terminal device to adopt the specific identifier information that is adapted to the function of the access device is further provided to avoid possible control logic confusion, as follows: The method further includes:

The first access device broadcasts an indication message to the terminal device, where the indication message is used to indicate that the terminal device carries the identifier information in the outer air interface protocol layer of the RRC connection request message or carries the identifier in the RRC connection request message. information.

A second aspect of the present invention provides a method for accessing a network, including:

The second access device receives the first message from the terminal device that is sent by the first access device, where the first message is used to request to access the network, and the first message carries the first identifier information, where the first identifier The information is used to determine whether the terminal device is allowed to access the network; the first access device does not support a high layer protocol, and the second access device supports a high layer protocol;

After the second access device allows the terminal device to access the network, the second identifier information is sent to the first access device, where the second identifier information is the same as the first identifier information.

In a possible implementation manner, the method further includes:

The second access device establishes a communication interface with the first access device.

In a possible implementation manner, the first message is an RRC connection request message, and the first identifier information is included in the RRC connection request message.

In a possible implementation, the sending the second identifier information to the first access device includes:

Sending a second message to the first access device, where the second message is an RRC connection setup message, and the second identifier information is included in the RRC connection setup message.

In a possible implementation manner, the method further includes:

The second access device broadcasts an indication message to the terminal device, where the indication message indicates that the terminal device carries the identifier information in the RRC connection request message or carries the identifier information in the outer air interface protocol layer of the RRC connection request message.

A third aspect of the present invention provides a method for accessing a network, including:

The terminal device sends a first message to the first access device, where the first message is used to request to access the network, and the first message carries the first identifier information, where the first identifier information is used to determine whether to allow the The terminal device accesses the network, where the first access device does not support a high layer protocol;

Receiving, by the terminal device, the second message that is sent by the first access device, where the second message is a response message of the first message, and the second message carries second identifier information;

And determining, by the terminal device, whether the access to the network is successful, according to whether the first identifier information is the same as the second identifier information.

In a possible implementation manner, the first identifier information is included in an outer air interface protocol layer of the RRC connection request message, and the second identifier information in the second message includes: the second identifier information Included in the outer air interface protocol layer of the RRC Connection Setup message.

In a possible implementation, the first identifier information is included in the RRC connection request message, and the second message carries the second identifier information, where the second identifier information is included in the RRC connection. Establish the outer air interface protocol layer of the message.

In a possible implementation manner, the first identifier information is included in the RRC connection request message, and the second identifier information is included in the RRC connection setup message.

The fourth aspect of the present invention further provides an access device, which is used as the first access device, and includes:

a message receiving unit, configured to receive a first message from a terminal device, where the first message is used to request an access network, where the first message carries first identifier information, where the first identifier information is used to determine whether to allow The terminal device accesses a network, where the first access device does not support a high layer protocol;

a first sending unit, configured to send a second message to the terminal device if the terminal device is allowed to access the network, where the second message is a response message of the first message, and the second message carries a second message Two identification information, wherein the second identification information is the same as the first identification information.

In a possible implementation manner, the access device further includes:

And an interface establishing unit, configured to establish a communication interface with the second access device, where the second access device supports a high layer protocol.

In a possible implementation, the first identifier information is included in an outer air interface protocol layer of the RRC connection request message; the access device further includes:

a parsing unit, configured to parse the outer air interface protocol layer, and obtain the first identifier information;

An access control unit, configured to determine whether the terminal device is allowed to access the network;

The first sending unit is specifically configured to: after the access control unit determines that the terminal device is allowed to access the network, send the second message to the terminal device.

In a possible implementation manner, the second identifier information is included in an outer air interface protocol layer of the RRC connection setup message.

In a possible implementation manner, the first identifier information is included in the RRC connection request message;

The access device further includes:

a second sending unit, configured to send the first message to the second access device;

And an identifier receiving unit, configured to receive the second identifier information that is sent by the second access device after the terminal device is allowed to access the network.

In a possible implementation manner, the identifier receiving unit is specifically configured to receive an RRC connection setup message that is sent by the second access device after the terminal device is allowed to access the network, where the second identifier information is included in In the RRC connection setup message;

The first sending unit is specifically configured to send an RRC connection setup message carrying the second identifier information to the terminal device.

In a possible implementation manner, the access device further includes:

a broadcast sending unit, configured to broadcast an indication message to the terminal device, where the indication message is used to indicate that the terminal device carries the identifier information in the outer air interface protocol layer of the RRC connection request message or carries the identifier information in the RRC connection request message. .

The fifth aspect of the present invention further provides an access device, which is used as the second access device, and includes:

a message receiving unit, configured to receive a first message that is sent by the first access device from the terminal device, where the first message is used to request to access the network, and the first message carries the first identifier information, where the first The identifier information is used to determine whether the terminal device is allowed to access the network; the first access device does not support a high layer protocol, and the second access device supports a high layer protocol;

The identifier sending unit is configured to send the second identifier information to the first access device after the terminal device accesses the network, where the second identifier information is the same as the first identifier information.

In a possible implementation, the identifier sending unit is specifically configured to send a second message to the first access device, where the second message is an RRC connection setup message, and the second identifier information is included in The RRC connection setup message.

In a possible implementation manner, the access device further includes:

The broadcast sending unit is configured to broadcast an indication message to the terminal device, where the indication message indicates that the terminal device carries the identifier information in the RRC connection request message or carries the identifier information in the outer air interface protocol layer of the RRC connection request message.

In a possible implementation manner, the access device further includes:

A sixth aspect of the present invention provides a terminal device, including:

a message sending unit, configured to send a first message to the first access device, where the first message is used to request to access the network, where the first message carries the first identifier information, where the first identifier information is used to determine Whether the terminal device is allowed to access the network, where the first access device does not support a high layer protocol;

a message receiving unit, configured to receive a second message sent by the first access device, where the second message is a response message of the first message, and the second message carries second identifier information;

The access confirmation unit is configured to determine whether the access to the network is successful according to whether the first identifier information and the second identifier information are the same.

In a possible implementation manner, the first identifier information is included in an outer air interface protocol layer of the RRC connection request message.

In a possible implementation, the carrying the second identifier information in the second message includes: the second identifier information is included in an outer air interface protocol layer of the RRC connection setup message.

In a possible implementation manner, the first identifier information is included in the RRC connection request message.

In a possible implementation manner, the second identifier information is included in the RRC connection setup message.

The seventh aspect of the present invention further provides an access device, which is used as a first access device, and includes The first receiver, the second receiver, the transmitter, the sending module, the processor, and the memory; wherein the first receiver performs the receiving function between the first access device and the terminal in the foregoing method embodiment, and the second The receiver performs the receiving function between the first access device and the second access device in the foregoing embodiment, and the transmitter completes the sending function between the first access device and the terminal in the foregoing method embodiment; the sending module completes the foregoing In the embodiment, the transmitting function between the first access device and the second access device, the processor performs a corresponding data processing function, and the memory can provide a buffer or other data storage function required by the processor in the data processing process.

The eighth aspect of the present invention further provides another access device, which is used as the second access device, and includes: a second receiver, a sending module, a processor, and a memory; wherein the second receiver completes the foregoing embodiment. a receiving function between the first access device and the second access device; the sending module completes the sending function between the first access device and the second access device in the foregoing embodiment, and the processor performs a corresponding data processing function The memory can provide the cache or other data storage functions that the processor needs during data processing.

The embodiment of the present invention further provides a communication system, including a first access device and a second access device, where the first access device is the access device according to the fourth aspect or the seventh aspect, and the second The access device is the access device described in the fifth aspect or the eighth aspect above.

As can be seen from the foregoing technical solutions, the embodiment of the present invention has the following advantages: the terminal device accesses the network through the first access device, and the control plane between the terminal device and the first access device is used in the process of accessing the network. An air interface, where the first access device does not support the high-layer protocol, for example, the first access device is an access device that uses the 5G communication technology; therefore, the terminal device in the embodiment of the present invention may not use the LTE in the process of accessing the network. The air interface avoids the problem that the LTE air interface is overloaded due to the use of the LTE air interface to access the network; therefore, the load of the LTE air interface can be reduced, thereby reducing the random access channel conflict of the LTE network.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention, Those skilled in the art can also obtain other drawings based on these drawings without paying for inventive labor.

1a is a schematic structural diagram of a protocol layer according to an embodiment of the present invention;

FIG. 1b is a schematic structural diagram of a protocol layer according to an embodiment of the present invention; FIG.

1c is a schematic structural diagram of a protocol layer according to an embodiment of the present invention;

2a is a schematic structural diagram of a system according to an embodiment of the present invention;

2b is a schematic structural diagram of a protocol layer according to an embodiment of the present invention;

2c is a schematic structural diagram of a protocol layer according to an embodiment of the present invention;

2d is a schematic structural diagram of a protocol layer according to an embodiment of the present invention;

3 is a schematic flowchart of a method according to an embodiment of the present invention;

4 is a schematic flowchart of a method according to an embodiment of the present invention;

FIG. 5 is a schematic flowchart of a method according to an embodiment of the present invention;

6 is a schematic flowchart of a method according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of an access device according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of an access device according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of an access device according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of an access device according to an embodiment of the present invention;

11 is a schematic structural diagram of an access device according to an embodiment of the present invention;

FIG. 12 is a schematic structural diagram of an access device according to an embodiment of the present invention;

FIG. 13 is a schematic structural diagram of an access device according to an embodiment of the present invention;

FIG. 14 is a schematic structural diagram of an access device according to an embodiment of the present invention;

FIG. 15 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

FIG. 16 is a schematic structural diagram of an access device according to an embodiment of the present invention;

FIG. 17 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

FIG. 18 is a schematic structural diagram of an access device according to an embodiment of the present invention;

FIG. 19 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.

detailed description

A communication system using a next-generation mobile communication technology, for example, a 5G mobile communication system may not have its own core network, and a protocol used for communication between a base station and a terminal device has no higher layer protocol, such as a NAS layer, an RRC layer IP layer, and a PDCP. The upper layer of the seven-layer protocol of the LTE system, such as the layer, only Layer 1 or Layer 2, for example: Physical Layer (PHY) Link Control (Radio Link Control, RLC) layer.

The interface of the next-generation mobile communication system described in the embodiment of the present invention refers to an air interface established between the terminal device and the base station device of the next-generation mobile communication system by using the next-generation mobile communication technology. For example, in the embodiment of the present invention, the air interface between the terminal device and the 5G base station device is referred to as a 5G air interface, or an air interface of the 5G system.

In the embodiment of the present invention, the protocol used by the 5G air interface is referred to as a lower layer protocol, and the protocol used by the 5G air interface is referred to as a higher layer protocol, such as NAS, RRC, IP, and PDCP, as in the previous example. protocol.

The available air interface technologies for 5G mobile communication technology can be: Filter Band Multi-Carrier (FBMC), faster than Fastest Than Nyquist (FTN), Generalized Frequency Division Multiplexing (Generalized Frequency Division Multiplexing (Generalized Frequency Division Multiplexing) Frequency Division Multiplexing (GFDM), Non-Orthogonal Multiple Access (NOMA), and the like. In the embodiment of the present invention, the air interface of the 5G mobile communication system is referred to as a 5G air interface.

The 5G air interface can be utilized in the following manner: the terminal device accesses through the LTE air interface, and then utilizes the 5G air interface by means of dual connectivity (DC) or carrier aggregation (CA). Based on the above terminal equipment accessing the network through the LTE air interface, the Control Plane (CP) and the User Plane (UP) of the UE simultaneously utilize LTE and 5G air interfaces by means of dual connectivity (DC). 1a to 1c are schematic diagrams of three protocol layers, where the left side is a protocol diagram of an LTE network, and the right side is a protocol of a 5G network. The bold solid line from the NAS to the UE in the left LTE is a control plane. The thick dotted lines of LTE and 5G are indicated by the user plane. The RRC and IP layers are also included on the LTE side. The 5G and LTE anchors use the X5 interface to establish a connection.

As shown in FIG. 1a, the UE accesses through LTE, and the Control Plane (CP) remains in LTE. Then, the User Plane (UP) utilizes both LTE and 5G air interfaces through DC, that is, the user plane anchor is in the LTE Packet Data Convergence Protocol (PDCP) layer. After a part of the data passes through the LTE PDCP layer, the LTE RLC (Radio Link Control)/MAC/PHY (Physical) layer is transmitted to the UE through the LTE air interface. Another part of the data passes through the LTE PDCP layer and passes through the 5G air interface. The RLC/MAC/PHY layer is sent to the UE through the 5G air interface.

As shown in FIG. 1b, the UE accesses through LTE, and the control plane remains in LTE. Then, the user plane utilizes LTE and 5G air interfaces simultaneously through the CA, that is, the user plane anchor is in the LTE Medium Access Control (MAC) layer. After a part of the data passes through the LTE PDCP layer, it continues to pass through the LTE RLC/MAC/PHY layer, that is, it is sent to the UE through the LTE air interface. After the other part of the data passes through the LTE PDCP layer, it is sent to the UE through the MAC/PHY layer of the 5G air interface, that is, through the 5G air interface.

As shown in FIG. 1c, the UE accesses through LTE, and the control plane remains in LTE. Then, the user plane utilizes the LTE and the 5G air interface through the CA mode, that is, the user plane anchor point is in the LTE Medium Access Control (MAC) layer. After a part of the data passes through the LTE PDCP layer, it continues to pass through the LTE RLC/MAC/PHY layer, that is, it is sent to the UE through the LTE air interface. After another part of the data passes through the LTE PDCP layer, it is sent to the UE through the PHY layer of the 5G air interface, that is, through the 5G air interface.

2A is a schematic diagram of a system architecture according to an embodiment of the present invention. In the schematic diagram of the system architecture, only the underlying protocol does not use a high-level protocol, for example, only the RLC, the MAC, and the PHY in the DC mode, and only the MAC in the CA mode. PHY, or, only PHY. The 5G air interface and the LTE air interface can share a single non-access stratum (singleNAS) and a single radio resource control (single RRC). The SingleNAS is used to transmit Non-Access Stratum (NAS) signaling between the UE and the core network. The single RRC is used to transmit an RRC message between a User Equipment (UE) and an E-UTRAN Node B (eNB). The UE shown in Fig. 2a is a terminal device.

The mobile management entity (Mobile Management Entity, MME), the Serving Gateway, the Packet Data Network Gateway (PDN Gateway), and the home subscriber server are also illustrated on the right side of the 5G eNB and the LTE eNB in FIG. 2a. (Home Subscriber Server, HSS), Policy Decision Function (PCRF), Operator's IP services, such as IP multimedia subsystem (IMS), Operation Support System (Operation Support) System, PSS), etc.; its networking structure and its connection protocol can refer to the 4G communication system, and an optional communication protocol interface is identified in FIG. 2a, and Uu (Radio interface between UTRAN and thd) between the UE and the 4G eNB is used. User equipment) interface, 5G Uu between the UE and the 5G eNB; SI-MME interface between the 4G eNB and the MME, and SI-U interface between the 4G eNB and the serving gateway, MME There is an S6 interface between the MME and the serving gateway, and an S11 interface between the MME and the serving gateway. The service network is an S5/S8 interface between the PDN gateways, and the SGi interface, the PCRF and the PDN gateway between the PDN gateway and the operator's Internet Protocol server. The Gx and the Rx interface can be used in the network protocol server of the operator. The interfaces can be defined by reference to the protocol interface in the 4G communication system, and are not described herein again. The UG interface of 5G can refer to the provisions of the 5G communication protocol.

Figure 2b to Figure 2d are schematic diagrams of three protocol layers, where the left side is the protocol of the LTE network, and the right side is the protocol of the 5G network. The bold solid line from the NAS to the UE in LTE is the control plane, cross-LTE and The thick dashed line of 5G is indicated by the user plane. The RRC and IP layers are also included on the LTE side. The layers of the 5G and LTE anchors are connected using the X5 interface.

In Figure 2b, the UE accesses the 5G air interface in the DC mode. The CP and UP plane anchors are in the LTE PDCP layer. The 5G air interface uses the RLC, MAC, and PHY layer protocols. That is, the CP surface (SingleNAS, SingleRRC layer) is transmitted to the UE through the RLC, MAC, and PHY layers of the 5G air interface after passing the LTE PDCP. After the UP plane (IP layer) passes the LTE PDCP, it is sent to the UE through the 5G air interface RLC, MAC, and PHY layers.

In Figure 2c, the UE accesses the 5G air interface in the CA mode. The CP and UP plane anchors are at the MAC layer of LTE. The 5G air interface uses the MAC and PHY layer protocols. That is, the CP surface (SingleNAS, SingleRRC layer) is transmitted to the UE through the 5G air interface MAC and PHY layer after passing through the PDCP, RLC, and MAC of the LTE. The UP plane (IP layer) is sent to the UE through the 5G air interface MAC and PHY layer after passing through the PDCP, RLC, and MAC of the LTE.

In Figure 2d, the UE accesses the 5G air interface in the CA mode. The CP and UP plane anchors are at the MAC layer of LTE. The 5G air interface uses the MAC and PHY layer protocols. That is, the CP surface (SingleNAS, SingleRRC layer) is transmitted to the UE through the PHY layer of the 5G air interface after passing through the PDCP, RLC, and MAC of the LTE. The UP plane (IP layer) is sent to the UE through the 5G air interface PHY layer after passing through the PDCP, RLC, and MAC of the LTE.

In the new architecture shown in FIG. 2a, since the 5G air interface has only the bottom layer, the upper layer (for example, the PDCP and RRC layers in the DC mode) is in the LTE. Therefore, random access involves signaling interaction between the UE, the 5G eNB, and the LTE eNB. Whether Msg1, 3 is sent to the 5G eNB or the LTE eNB, respectively, and how the UE learns that the random access is successful needs to be solved.

The UE selects 5G air interface access, which has the following possibilities:

1. Only 5G single-mode UEs can be accessed through 5G air interfaces. In this case, although the UE is a single-mode UE, it still has the ability to support LTE high-level protocols.

2. The LTE eNB broadcasts the indication that the UE is camped on other systems. The 1bit indicates that the UE accesses the 5G air interface, and may also indicate the 5G air interface cell identifier, such as the physical layer cell identity (PCI), or the frequency point + PCI or the like causes the UE to be instructed to access through the 5G air interface.

3. The 5G eNB and the LTE eNB respectively broadcast their load information (and possibly delay, backhaul, etc.), and the UE selects to access through the 5G air interface according to the broadcast information.

Based on the above description, the embodiment of the present invention provides a method for accessing a network. In this embodiment, the first access device may be an access device supporting a 5G air interface protocol, that is, an access device in a 5G mobile communication system. For example, the 5G eNB shown in FIG. 2a, the second access device may be an access device in a 4G system, such as an eNB in an LTE system. The type of the first access device is not specifically limited in the embodiment of the present invention, and may also be an access device in other future evolved communications.

As shown in FIG. 3, the method includes:

301: The terminal device sends a first message to the first access device.

The first message is used to request a message for accessing the network, where the first message carries the first identifier information, where the first identifier information is used to determine whether the terminal device is allowed to access the network, where the An access device does not support high layer protocols;

In the present embodiment, the higher layer protocol may refer to the definition of the higher layer protocol in the foregoing embodiment.

In this embodiment, based on the use of the first identifier information, reference may be made to the use of the identifier information in the random access technology, the first identifier information, the Serving-Temporary Mobile Subscriber Identity (S-TMSI), and the random value. (Randomvalue) and so on.

In the present embodiment, "first" and "second" are merely used to distinguish two identical technical terms, and should not be construed as having other technical meanings. The “first identification information” is the identification information that is sent by the terminal device to the uplink, and the “second identification information” is the identification information that is received by the terminal device.

An access device is a device located on an access network, and may be a base station or an access point (AP).

302: The first access device receives the first message sent by the terminal device, and if the terminal device is allowed to access the network, the first access device sends a second message to the terminal device, where the second The message is a response message of the first message, and the second message carries second identity information, where the second identity information is the same as the first identity information.

Whether the terminal device is allowed to access the network, which is determined by the first identifier information, and specifically, if the multiple different terminals send the first message on the same time-frequency resource, the network side performs the first identifier information. distinguish. One possible case is that the network side can only parse the first message of the specific user and obtain the first identification information, so that the second identification information is set to the first identification information and sent to the terminal. Another possible situation is that the network side may parse the first message of multiple users and obtain corresponding first identification information, and the network side selects specific first identification information, and sets the second identification information to the first identifier. Information is sent to the terminal.

303: The terminal device receives the second message sent by the first access device, and parses the second message to obtain the second identifier information. If the first identifier information is the same as the second identifier information, determining Successfully entered the network. If the second message is not received within the time period of receiving the second message, or the second message is received but the second identification information is different from the first identification information, the access network may be determined to be failed, and the first time may be resent. The message carries the first identification information.

The terminal device of the embodiment of the present invention accesses the network through the first access device, and the control plane of the terminal device uses an air interface with the first access device in the process of accessing the network, where the first access device does not support The high-level protocol, for example, the first access device is an access device that uses the 5G communication technology; therefore, the terminal device in the embodiment of the present invention can not use the LTE air interface in the process of accessing the network, and avoids that all terminal devices use the LTE air interface. The access network causes the LTE air interface to be overloaded. Therefore, the load on the LTE air interface can be reduced, thereby reducing the random access channel conflict of the LTE network.

In a possible implementation, the data transmission may be performed after the random access, the method further includes: the first access device establishes a communication interface with the second access device, and the second access The device supports high level protocols.

After the communication interface is established, the first access device may send the uplink data from the terminal to the second access device by using the foregoing communication interface, and may also receive, by using the communication interface, the second access device and send the foregoing to the terminal device. Downstream data. The communication interface establishment process may be initiated by the first access device or by the second access device, which is not limited in this embodiment of the present invention.

In the above step 302, “the terminal device is allowed to access the network”, the first access device may make a decision, or the second access device may make a decision, and the following two manners are respectively performed. Specific instructions:

1. The first access device determines whether the terminal device is allowed to access the network:

In this case, since the first access device does not support the upper layer protocol, the first identifier information is located at a protocol layer supported by the first access device, and the first access device may obtain the first identifier from the first message. information.

As an example, the first message is a radio resource control RRC connection request message; and the second message is an RRC connection setup message. The existing message can be used to be compatible with the LTE system.

Then in this case, the first identifier information is included in an outer air interface protocol layer of the RRC connection request message. The RRC connection request message itself may still be an RRC connection request message specified in the 4G protocol, and a new protocol layer is added to the outer layer, so the "outer air interface protocol layer" is a protocol that the first access device can support. Floor;

If the first access device can obtain the first identification information, if the terminal device is allowed to access the network in the step 302, the sending, by the first access device, the second message to the terminal device includes:

After the first access device determines that the terminal device is allowed to access the network, the second access message is sent to the terminal device.

More specifically, in the embodiment, the second identifier information is included in an outer air interface protocol layer of the RRC connection setup message.

2. The second access device determines whether the terminal device is allowed to access the network:

In this case, the first identifier information is located in a protocol layer that is not supported by the first access device, and the first access device cannot obtain the first identifier information.

Then in this case, the first identification information is included in the RRC connection request message. In this case, the first access device may send the first message to the second access device to perform the decision by the second access device, where the method further includes:

After the first access device receives the second access device, the terminal device is allowed to access the network. The second identification information sent.

Based on the application scenario of the embodiment of the present invention, the second access device may only send the second identifier information, and may also carry the second identifier information in combination with the existing information in the process of the random access procedure of the LTE network, where the latter method is compatible. Good sex, as follows:

The receiving, by the first access device, the second identifier information that is sent by the second access device after the terminal device is allowed to access the network, includes:

In the embodiment of the present invention, based on the above two manners of carrying the first identification information, how the terminal device decides to implement the method may have the following three possibilities:

1. The first access device specifies, as follows: the first access device broadcasts an indication message to the terminal device, where the indication message is used to indicate that the terminal device is in an outer air interface protocol of an RRC connection request message. The layer carries the identifier information or carries the identifier information in the RRC connection request message.

2. The second access device specifies, as follows: the second access device broadcasts an indication message to the terminal device, where the indication message is used to indicate that the terminal device is in an outer air interface protocol of an RRC connection request message. The layer carries the identifier information or carries the identifier information in the RRC connection request message.

In the foregoing implementation manners of the access device specified by the access device, the access device does not need to specify the specific identifier information sent by the terminal device in the indication message, so the above identifier information should be understood as the general identifier information, and It is not specified that the first identification information described in the previous embodiment must be carried.

3. The terminal device makes its own decision, as follows: the terminal device determines, according to a predetermined rule, that the first air interface protocol layer of the first message carries the first identifier information or carries the first identifier information in the first message, more specifically The terminal device determines that the first identifier information is carried in the outer air interface protocol layer of the RRC connection request message or the first identifier information is carried in the RRC connection request message according to a predetermined rule. The foregoing predetermined rule may be specified in the 5G protocol, or may be based on the terminal device. Whether the first access device has the ability to determine whether the terminal device is allowed to access the network is determined, and the specific rule may be determined as needed, which is not limited in this embodiment.

Three alternative embodiments are provided below as a random access procedure for the UE based on the system architecture shown in Figure 2a above.

First, as shown in Figure 4, including:

The communication connection is established between the 5G eNB and the LTE eNB. If the X5 interface is used between the 5G eNB and the LTE eNB, this step may be the process of establishing the X5 interface. The communication connection may be a communication connection established in advance; applied to the random access procedure shown in FIG. 4, the establishment should be completed before step 402.

401: The UE sends an RRC connection request (Connection Request) message in the LTE format to the 5G eNB, and carries the S-TMSI information in the RRC Connection Request message.

Since the 5G system does not have a core network and no RRC layer, the UE can also send an RRC Connection Request in LTE format through the 5G air interface. As for how the UE knows whether to send the 5G air interface format or the LTE connection RRC Connection Request message to the 5G eNB, there are at least three possibilities: the 3rd Generation Partnership Project (3GPP) protocol, the 5G air interface broadcast indication, or the LTE broadcast. Instructions.

402: The 5G eNB sends the received RRC Connection Request message to the LTE eNB.

It is assumed that the 5G eNB establishes a new interface with the neighboring LTE eNB in advance, which is referred to as an X5 interface in this embodiment. For example, the 5G eNB learns the Transport Network Layer (TNL) addressing address of the neighboring LTE eNB through the OAM configuration, and then initiates a request to establish an X5 interface. Or the LTE eNB learns the TNL addressing address of the neighboring 5G eNB according to the OAM configuration, and then initiates a request to establish an X5 interface. In step 403, the 5G eNB may send an RRC Connection Request message of the UE on the X5 interface.

403: The LTE eNB sends the S-TMSI carried in the RRC setup message (Connection Request) to the 5G eNB.

In this embodiment, step 404 is performed after the LTE eNB determines that the UE is allowed to access the network; allowing the UE to access, may be determined that no access conflict occurs, or may be selected in an access conflict. One UE allows access to the network.

The S-TMSI transmitted in step 404 is the S-TMSI included in the RRC Connection Request. The sending mode may be that a new message is sent, and the S-TMSI copied by the LTE eNB from the RRC Connection Request is adopted. The S-TMSI may also be carried in an RRC Connection Setup message sent to the UE.

404: The 5G eNB replies to the UE with the msg4 and carries the S-TMSI in the msg4.

The S-TMSI may be included in a MAC Protocol Data Unit (PDU) of msg4. After receiving the msg4, the UE determines whether the RACH access is successful according to the S-TMSI carried in the MAC PDU. If the S-TMSI is carried in the RRC Connection Setup message sent by the 4G eNB, the M4 may be an RRC Connection Setup message sent from the LTE eNB.

Second, as shown in Figure 5, including:

The X5 interface setup shown in FIG. 5 can be referred to the description of the previous embodiment.

501: The UE sends an RRC connection request (Connection Request) message in the LTE format to the 5G eNB, and carries the S-TMSI in the 5G air interface protocol layer.

Since the 5G eNB does not have the RRC layer, the RRC Connection Request message sent by the UE cannot be interpreted, and the S-TMSI carried in the message cannot be read, so that the RACH collision cannot be resolved. It is therefore assumed that the UE adds S-TMSI at the 5G air interface protocol layer, ie PHY or PHY/MAC (corresponding CA mode) or PHY/MAC/RLC (corresponding DC mode) layer, so that the 5G eNB resolves the RACH collision. Considering that the current Cyclic Redundancy Check (Check) check is done at the physical layer, if the 5G eNB can solve the MAC header (including S-TMSI), it means that when the 5G eNB can also Correctly demodulate the RRC connection Request message to obtain the S-TMSI. The subsequent 5G eNB does not need to send an RRC Connection Request message to the LTE base station, thereby reducing the number of messages transmitted on the X5 interface.

502: The 5G eNB replies to the UE with the msg4, and the S-TMSI is carried in the 5G air interface protocol layer.

Specifically, the S-TMSI is carried in the MAC PDU of the msg4, and is used to notify the UE to allow access.

After receiving the msg4 carrying the S-TMSI, the UE compares its own S-TMSI. If the two are different, it indicates that the access network fails, and the UE can quickly initiate the next access to the network; if the same, the UE determines The access network was successful. The advantage of this scheme is that there is no need to wait for the LTE base station to resolve the access conflict by reading the RRC message, and reduce the time required to resolve the access conflict.

Further, the subsequent steps may be further performed, and it is necessary to explain that the subsequent steps are in this embodiment. It does not belong to the steps of network access to resolve access conflicts.

503: The 5G eNB sends an RRC connection request (Connection Request) message to the LTE base station through the X5 interface. The LTE eNB sends an RRC Connection Setup message to the UE through the 5G eNB.

This step is performed because the LTE eNB may need to select the MME for the UE according to the S-TMSI in the RRC connection Request, so that the subsequent UE establishes a connection with the core network.

504: The UE sends an RRC Connection Setup Complete message to the LTE base station by using the 5G eNB. The subsequent 5G eNB does not need to send the RRC Connection Request message of the redundant UE to the LTE base station, which can reduce unnecessary X5 interface messages.

Third, as shown in Figure 6, the details are as follows:

The X5 interface setup shown in FIG. 6 can be referred to the description of the embodiment shown in FIG.

601: The UE sends an RRC connection request (Connection Request message) in the LTE format to the 5G eNB, and carries the S-TMSI information in the RRC Connection Request message.

602: The 5G eNB sends an RRC Connection Request message to the LTE eNB.

603: The LTE eNB sends an RRC connection setup (Connection Setup) including the S-TMSI to the UE through the 5G eNB.

After receiving the RRC Connection Setup message, the UE determines whether the access network is successful by reading the S-TMSI included in the message. After the UE can notify the 5G air interface MAC layer to access the network through the RRC layer, the 5G air interface MAC layer does not need to continue to try random access.

An embodiment of the present invention provides an access device, which is used as the first access device, as shown in FIG. 7, and includes:

The message receiving unit 701 is configured to receive a first message from the terminal device, where the first message is used to request an access network, where the first message carries first identifier information, where the first identifier information is used to determine whether Allowing the terminal device to access the network, where the first access device does not support a high layer protocol;

The first sending unit 702 is configured to send a second message to the terminal device if the terminal device is allowed to access the network, where the second message is a response message of the first message and the second message is carried. The second identifier information, wherein the second identifier information is the same as the first identifier information.

Optionally, the first message is a radio resource control RRC connection request message; and the second The message is an RRC Connection Setup message.

Further, as shown in FIG. 8, the access device further includes:

The interface establishing unit 801 is configured to establish a communication interface with the second access device, and the second access device supports a high layer protocol.

Further, as shown in FIG. 9, the first identifier information is included in an outer air interface protocol layer of the RRC connection request message; the access device further includes:

The parsing unit 901 is configured to parse the outer air interface protocol layer, and obtain the first identifier information.

The access control unit 902 is configured to determine whether the terminal device is allowed to access the network.

The first sending unit 702 is specifically configured to: after the access control unit 902 determines that the terminal device is allowed to access the network, send the second message to the terminal device.

Optionally, the second identifier information is included in an outer air interface protocol layer of the RRC connection setup message.

Further, as shown in FIG. 10, the first identifier information is included in the RRC connection request message;

The access device further includes:

The second sending unit 1001 is configured to send the first message to the second access device.

The identifier receiving unit 1002 is configured to receive the second identifier information that is sent by the second access device after the terminal device is allowed to access the network.

Optionally, the identifier receiving unit 1002 is specifically configured to receive an RRC connection setup message that is sent by the second access device after the terminal device is allowed to access the network, where the second identifier information is included in the RRC connection. Establish a message;

The first sending unit 702 is specifically configured to send an RRC connection setup message carrying the second identifier information to the terminal device.

Further, as shown in FIG. 11, the access device further includes:

The broadcast sending unit 1101 is configured to broadcast an indication message to the terminal device, where the indication message is used to indicate that the terminal device carries the identifier information in the outer air interface protocol layer of the RRC connection request message or carries the identifier in the RRC connection request message. information.

The embodiment of the present invention further provides another access device, which is used as the second access device, as shown in FIG. 12, and includes:

The message receiving unit 1201 is configured to receive a first message from the terminal device that is sent by the first access device, where the first message is used to request to access the network, and the first message carries the first identifier information, where the An identification information is used to determine whether the terminal device is allowed to access the network; the first access device does not support a high layer protocol, and the second access device supports a high layer protocol;

The identifier sending unit 1202 is configured to send the second identifier information to the first access device after the terminal device accesses the network, where the second identifier information is the same as the first identifier information.

Optionally, the first message is an RRC connection request message, and the first identifier information is included in the RRC connection request message.

Optionally, the identifier sending unit 1202 is specifically configured to send a second message to the first access device, where the second message is an RRC connection setup message, and the second identifier information is included in the RRC connection. Create a message.

Further, as shown in FIG. 13, the access device further includes:

The broadcast sending unit 1301 is configured to broadcast an indication message to the terminal device, where the indication message indicates that the terminal device carries the identifier information in the RRC connection request message or carries the identifier information in the outer air interface protocol layer of the RRC connection request message.

Further, as shown in FIG. 14, the access device further includes:

The interface establishing unit 1401 is configured to establish a communication interface with the first access device.

An embodiment of the present invention further provides a terminal device, as shown in FIG.

The message sending unit 1501 is configured to send a first message to the first access device, where the first message is used to request to access the network, where the first message carries the first identifier information, where the first identifier information is used. Determining whether the terminal device is allowed to access the network, where the first access device does not support a high layer protocol;

The message receiving unit 1502 is configured to receive a second message sent by the first access device, where the second message is a response message of the first message, and the second message carries second identifier information.

The access confirmation unit 1503 is configured to determine whether the access to the network is successful according to whether the first identifier information and the second identifier information are the same.

Optionally, the first message is a radio resource control RRC connection request message; and the second message is an RRC connection setup message.

Optionally, the first identifier information is included in an outer air interface of the RRC connection request message. In the discussion layer.

Optionally, the carrying the second identifier information in the second message includes: the second identifier information is included in an outer air interface protocol layer of the RRC connection setup message.

Optionally, the first identifier information is included in the RRC connection request message.

Optionally, the second identifier information is included in the RRC connection setup message.

The embodiment of the present invention further provides an access device, which is used as the first access device or the second access device. As shown in FIG. 16, the method includes: a first receiver 1601, a second receiver 1605, and a transmitter 1602. The transmitting module 1606, the processor 1603, and the memory 1604; wherein the receiver 1601 performs the receiving function in the foregoing method embodiment, the transmitter 1602 performs the sending function in the foregoing method embodiment; and the processor 1603 performs the corresponding data processing function. Memory 1604 can provide cache or other data storage functionality that processor 1603 requires during data processing.

The first receiver 1601 performs the receiving function between the first access device and the terminal in the foregoing method embodiment, and the second receiver 1605 completes the first access device and the second access device in the foregoing embodiment. Receiving function, the transmitter 1602 performs the sending function between the first access device and the terminal in the foregoing method embodiment; the sending module 1606 completes the sending function between the first access device and the second access device in the foregoing embodiment. . If the specific functions are not involved in the embodiment, the functional components may not be included. Generally, the first receiver 1601 and the transmitter 1602 can correspond to an antenna module supporting wireless transmission; if a wired connection is used between the first access device and the second access device, the second receiver 1605 and the transmitting module 1606 can be a software controlled communication interface.

It is assumed that the above access device is used as the first access device, as follows:

The first receiver 1601 is configured to receive a first message from a terminal device, where the first message is used to request an access network, where the first message carries first identifier information, where the first identifier information is used by Determining whether the terminal device is allowed to access the network, where the first access device does not support a high layer protocol;

The transmitter 1602 is configured to: if the terminal device is allowed to access the network, the first access device sends a second message to the terminal device, where the second message is a response message of the first message, and The second message carries the second identifier information, where the second identifier information is the same as the first identifier information.

The first identification information and the second identification information may use S-TMSI, a random value, or the like. in case The terminal device is not allowed to access the network, and the second identifier information is different from the first identifier information, and the second message may not be sent to the terminal device. The higher layer protocol is a protocol that is not supported by the first access device relative to the underlying protocol in the layer 7 protocol, for example, NAS/RRC/IP. The second message may be a message dedicated to the delivery of the second identification information or may be carried by a message already in the process of using the access network.

Optionally, the processor 1603 is further configured to establish a communication interface with a second access device, where the second access device supports a high layer protocol.

Optionally, it is provided that the first access device itself determines whether the terminal device is allowed to access the network: the first identifier information is included in an outer air interface protocol layer of the RRC connection request message;

The processor 1603 is configured to parse the outer air interface protocol layer to obtain the first identifier information;

The transmitter 1602 is configured to send a second message to the terminal device after the processor 1603 determines that the terminal device is allowed to access the network.

The first access device of the solution in this embodiment can independently determine whether to allow the terminal device to access the network, and reduce the resource of the message occupying the control plane between the network side devices.

Optionally, an implementation scheme is provided, where the first access device determines whether to allow the terminal device to access the network, and returns the second identifier information correspondingly: the second identifier information includes an outer air interface in the RRC connection setup message. In the protocol layer.

Optionally, it is provided that the second access device determines whether the terminal device is allowed to access the network: the first identifier information is included in the RRC connection request message;

The sending module 1606 is configured to send the first message to the second access device.

The second receiver 1605 is configured to receive the second identifier information that is sent by the second access device after the terminal device is allowed to access the network.

In this embodiment, the first access device does not need to increase the decision function, and still uses the second access device. The standby decision function is implemented to implement the compatibility of the second access device function.

Optionally, a specific implementation scheme for carrying the second identifier information is also provided, as follows:

The second receiver 1605 is configured to receive an RRC connection setup message that is sent by the second access device after the terminal device is allowed to access the network, where the second identifier information is included in the RRC connection setup message.

The transmitter 1602 is configured to send a second message to the terminal device, where the second message carries the second identifier information, including: sending an RRC connection setup message carrying the second identifier information to the terminal device .

Optionally, a scheme for controlling the terminal device to adopt the specific identifier information that is adapted to the function of the access device is further provided to avoid possible control logic confusion, as follows:

The transmitter 1602 is further configured to: broadcast an indication message to the terminal device, where the indication message is used to indicate that the terminal device carries the identifier information in the outer air interface protocol layer of the RRC connection request message or in the RRC connection request message. Carry identification information.

It is assumed that the above access device is used as the second access device, as follows:

The second receiver 1605 is configured to receive a first message from the terminal device that is sent by the first access device, where the first message is used to request access to the network, and the first message carries the first identifier information. The first identifier information is used to determine whether the terminal device is allowed to access the network; the first access device does not support a high layer protocol, and the second access device supports a high layer protocol;

The processor 1603 is configured to determine whether the terminal device is allowed to access the network.

The sending module 1606 is configured to: after the processor 1603 determines that the terminal device is allowed to access the network, send the second identifier information to the first access device, where the second identifier information is The first identification information is the same.

Optionally, the sending, by the sending module 1606, the sending, by the first access device, the second identifier information, by sending, to the first access device, a second message, where the second message is an RRC connection setup message The second identification information is included in the RRC connection setup message.

Optionally, the sending module 1606 is further configured to: broadcast an indication message to the terminal device, where the indication message indicates that the terminal device carries the identifier information in the RRC connection request message or The outer air interface protocol layer of the RRC connection request message carries the identification information.

Optionally, the processor 1603 is further configured to establish a communication interface with the first access device.

A third embodiment of the present invention provides a terminal device, as shown in FIG. 17, comprising: a receiver 1701, a transmitter 1702, a processor 1703, and a memory 1704; wherein the receiver 1701 performs the receiving function in the foregoing method embodiment, Transmitter 1702 performs the transmit function of the foregoing method embodiments; processor 1703 performs the corresponding data processing functions, and memory 1704 can provide the cache or other data storage functions required by processor 1703 during data processing.

The transmitter 1702 is configured to send a first message to the first access device, where the first message is used to request to access the network, and the first message carries the first identifier information, where the first identifier is The information is used to determine whether the terminal device is allowed to access the network, where the first access device does not support a high layer protocol;

The receiver 1701 is configured to receive a second message sent by the first access device, where the second message is a response message of the first message, and the second message carries second identifier information;

The processor 1703 is configured to determine whether the network access is successful according to whether the first identifier information and the second identifier information are the same.

Optionally, the first identifier information is included in an outer air interface protocol layer of the RRC connection request message.

FIG. 18 is a schematic structural diagram of an access device according to an embodiment of the present invention. The access device 1800 may generate a large difference due to different configurations or performances, and may include one or more central processing units (central processing units, CPU) 1822 (eg, one or more processors) and memory 1832, storage of one or more storage applications 1842 or data 1844 Medium 1830 (eg, one or one storage device in Shanghai). Among them, the memory 1832 and the storage medium 1830 may be short-term storage or persistent storage. The program stored on storage medium 1830 may include one or more modules (not shown), each of which may include a series of instruction operations in the access device. Still further, central processor 1822 can be configured to communicate with storage medium 1830, executing a series of instruction operations in storage medium 1830 on access device 1800.

Access device 1800 may also include one or more power sources 1826, one or more wired or wireless network interfaces 1850, one or more input and output interfaces 1858, and/or one or more operating systems 1841, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM and more.

The steps performed by the access device in the above embodiments may be based on the access device structure shown in FIG.

The embodiment of the present invention further provides another terminal device. As shown in FIG. 19, for the convenience of description, only parts related to the embodiment of the present invention are shown. If the specific technical details are not disclosed, refer to the method of the embodiment of the present invention. section. In the embodiment of the present invention, the terminal device may be any terminal device or user equipment such as a mobile phone, a tablet computer, a PDA (Personal Digital Assistant), a POS (Point of Sales), an in-vehicle computer, or the like. Take the terminal device as a mobile phone as an example:

FIG. 19 is a block diagram showing a partial structure of a mobile phone related to a terminal provided by an embodiment of the present invention. Referring to FIG. 19, the mobile phone includes: a radio frequency (RF) circuit 1910, a memory 1920, an input unit 1930, a display unit 1940, a sensor 1950, an audio circuit 1960, a wireless fidelity (WiFi) module 1970, and a processor 1980. And power supply 1990 and other components. It will be understood by those skilled in the art that the structure of the handset shown in FIG. 19 does not constitute a limitation to the handset, and may include more or less components than those illustrated, or some components may be combined, or different components may be arranged.

The following describes the components of the mobile phone in detail with reference to FIG. 19:

The RF circuit 1910 can be used for receiving and transmitting signals during and after receiving or transmitting information, in particular, after receiving the downlink information of the base station, and processing it to the processor 1980; in addition, transmitting the uplink data to the base station. Generally, RF circuit 1910 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, RF circuitry 1910 can also communicate with the network and other devices via wireless communication.

The memory 1920 can be used to store software programs and modules, and the processor 1980 is stored by running The software program and modules of the memory 1920 perform various functional applications and data processing of the mobile phone. The memory 1920 may mainly include a storage program area and an storage data area, wherein the storage program area may store an operating system, an application required for at least one function; and the storage data area may store data (such as audio data, created according to usage of the mobile phone, Phone book, etc.). Moreover, memory 1920 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The input unit 1930 can be configured to receive input numeric or character information and to generate key signal inputs related to user settings and function controls of the handset. Specifically, the input unit 1930 may include a touch panel 1931 and other input devices 1932. The touch panel 1931, also referred to as a touch screen, collects touch operations on or near the user and drives the corresponding connection device according to a preset program. Optionally, the touch panel 1931 may include two parts: a touch detection device and a touch controller. In addition to the touch panel 1931, the input unit 1930 may also include other input devices 1932. In particular, other input devices 1932 may include, but are not limited to, one or more of a physical keyboard, function keys, trackballs, mice, joysticks, and the like.

Display unit 1940 can be used to display information entered by the user or information provided to the user as well as various menus of the handset. Display unit 1940 can include display panel 1941. Further, the touch panel 1931 may cover the display panel 1941. After the touch panel 1931 detects a touch operation thereon or nearby, the touch panel 1931 transmits to the processor 1980 to determine the type of the touch event, and then the processor 1980 according to the touch event. The type provides a corresponding visual output on display panel 1941. The handset may also include at least one type of sensor 1950, such as a light sensor, motion sensor, and other sensors.

An audio circuit 1960, a speaker 1961, and a microphone 1962 can provide an audio interface between the user and the handset. Although FIG. 19 shows the WiFi module 1970, it can be understood that it does not belong to the essential configuration of the mobile phone, and may be omitted as needed within the scope of not changing the essence of the invention.

The processor 1980 is the control center of the handset, which connects various portions of the entire handset using various interfaces and lines, by executing or executing software programs and/or modules stored in the memory 1920, and invoking data stored in the memory 1920, executing The phone's various functions and processing data, so that the overall monitoring of the phone. Optionally, the processor 1980 may include one or more processing units; preferably, the processor 1980 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, an application, and the like. The modem processor primarily handles wireless communications. Can It is to be understood that the above described modem processor may also not be integrated into the processor 1980.

The mobile phone also includes a power source 1990 (such as a battery) that supplies power to various components. Preferably, the power source can be logically coupled to the processor 1980 through a power management system to manage functions such as charging, discharging, and power management through the power management system.

Although not shown, the mobile phone may further include a camera, a Bluetooth module, and the like, and details are not described herein again. In the foregoing embodiment, the steps in the method embodiment may be based on the structure; wherein the RF circuit 1910 may correspond to the transmitter 1702 and the receiver 1701 of the terminal device in the foregoing embodiment, and the processor 1980 may correspond to the processor of the terminal device. 1703, the memory 1920 can correspond to the memory 1704 of the terminal device.

It should be noted that the above-mentioned access device and terminal device units are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be implemented; in addition, the specific names of the functional units are only In order to facilitate mutual differentiation, it is not intended to limit the scope of the invention. In the embodiments of the access device and the terminal device, the functions of the units or modules may be described in more detail with reference to the method embodiments.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented in hardware, firmware implementation, or a combination thereof. When implemented in software, the functions described above may be stored in or transmitted as one or more instructions or code on a computer readable medium. Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another. A storage medium may be any available media that can be accessed by a computer. The computer readable medium can be non-volatile. By way of example and not limitation, computer readable media may comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage media or other magnetic storage device, or can be used for carrying or storing in the form of an instruction or data structure. The desired program code and any other medium that can be accessed by the computer. Also. Any connection may suitably be a computer readable medium.

Referring to the system structure diagram shown in FIG. 2, it should be understood that the embodiment of the present invention may provide a mobile communication system including a first access device and a second access device, and the first access device and the second access device. For specific functions, and specific operations performed, reference may be made to the specific description of the first access device and the second access device in the process shown in FIG. 2; the structure of the first access device and the second access device, Reference may be made to the detailed embodiments of the first access device and the second access device in the foregoing embodiments, and details are not described herein again.

It can be understood that the communication network appearing in the embodiment of the present invention has the same meaning as the communication system. For example, the LTE network has the same meaning as the LTE system, and the 5G network has the same meaning as the 5G system.

The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the embodiments of the present invention. All should be covered by the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

A method for accessing a network, comprising:

The first access device receives the first message from the terminal device, where the first message is used to request access to the network, and the first message carries the first identifier information, where the first identifier information is used to determine whether to allow The terminal device accesses the network, where the first access device does not support a high layer protocol;

If the terminal device is allowed to access the network, the first access device sends a second message to the terminal device, where the second message is a response message of the first message, and the second message carries the second message. Two identification information, wherein the second identification information is the same as the first identification information.
The method of claim 1 wherein the method further comprises:

The first access device establishes a communication interface with a second access device, and the second access device supports a high layer protocol.
Method according to claim 1 or 2, characterized in that

The first message is a radio resource control RRC connection request message; and the second message is an RRC connection setup message.
The method according to claim 3, wherein the first identification information is included in an outer air interface protocol layer of the RRC connection request message;

If the terminal device is allowed to access the network, the first access device sends the second message to the terminal device, including:

The first access device parses the outer air interface protocol layer to obtain the first identifier information;

After the first access device determines that the terminal device is allowed to access the network, the second access message is sent to the terminal device.
The method according to claim 3 or 4, wherein the second identification information is included in an outer air interface protocol layer of the RRC connection setup message.
The method according to claim 3, wherein the first identification information is included in the RRC connection request message;

The method further includes:

Sending, by the first access device, the first message to the second access device;

The first access device receives the second identifier information that is sent by the second access device after the terminal device is allowed to access the network.
The method according to claim 6, wherein the first access device receives the second identifier information that is sent by the second access device after the terminal device allows the terminal device to access the network, and includes:

Receiving, by the first access device, an RRC connection setup message that is sent by the second access device after the terminal device is allowed to access the network, where the second identifier information is included in the RRC connection setup message;

The first access device sends a second message to the terminal device, where the second message carries the second identifier information, including:

The first access device sends an RRC connection setup message carrying the second identifier information to the terminal device.
The method according to any one of claims 3 to 7, wherein the method further comprises:

The first access device broadcasts an indication message to the terminal device, where the indication message is used to indicate that the terminal device carries the identifier information in the outer air interface protocol layer of the RRC connection request message or carries the identifier in the RRC connection request message. information.
A method for accessing a network, comprising:

The second access device receives the first message from the terminal device that is sent by the first access device, where the first message is used to request to access the network, and the first message carries the first identifier information, where the first identifier The information is used to determine whether the terminal device is allowed to access the network; the first access device does not support a high layer protocol, and the second access device supports a high layer protocol;

After the second access device allows the terminal device to access the network, the second identifier information is sent to the first access device, where the second identifier information is the same as the first identifier information.
The method according to claim 9, wherein the first message is an RRC connection request message, and the first identification information is included in the RRC connection request message.
The method according to claim 9 or 10, wherein the sending the second identification information to the first access device comprises:

Sending a second message to the first access device, where the second message is an RRC connection setup message, and the second identifier information is included in the RRC connection setup message.
The method of claim 10, wherein the method further comprises:

Transmitting, by the second access device, an indication message to the terminal device, where the indication message indicates the The terminal device carries the identifier information in the RRC connection request message or carries the identifier information in the outer air interface protocol layer of the RRC connection request message.
The method according to claim 9 or 10, wherein the method further comprises:

The second access device establishes a communication interface with the first access device.
An access device is used as the first access device, and is characterized by:

a message receiving unit, configured to receive a first message from a terminal device, where the first message is used to request an access network, where the first message carries first identifier information, where the first identifier information is used to determine whether to allow The terminal device accesses a network, where the first access device does not support a high layer protocol;

a first sending unit, configured to send a second message to the terminal device if the terminal device is allowed to access the network, where the second message is a response message of the first message, and the second message carries a second message Two identification information, wherein the second identification information is the same as the first identification information.
The access device according to claim 14, wherein the access device further comprises:

And an interface establishing unit, configured to establish a communication interface with the second access device, where the second access device supports a high layer protocol.
Access device according to claim 14 or 15, characterized in that

The first message is a radio resource control RRC connection request message; and the second message is an RRC connection setup message.
The access device according to claim 16, wherein the first identification information is included in an outer air interface protocol layer of the RRC connection request message; the access device further includes:

a parsing unit, configured to parse the outer air interface protocol layer, and obtain the first identifier information;

An access control unit, configured to determine whether the terminal device is allowed to access the network;

The first sending unit is specifically configured to: after the access control unit determines that the terminal device is allowed to access the network, send the second message to the terminal device.
The access device according to claim 16 or 14, wherein the second identification information is included in an outer air interface protocol layer of the RRC connection setup message.
The access device according to claim 16, wherein the first identification information is included in the RRC connection request message;

The access device further includes:

a second sending unit, configured to send the first message to the second access device;

And an identifier receiving unit, configured to receive the second identifier information that is sent by the second access device after the terminal device is allowed to access the network.
The access device of claim 19, wherein

The identifier receiving unit is specifically configured to receive an RRC connection setup message that is sent by the second access device after the terminal device is allowed to access the network, where the second identifier information is included in the RRC connection setup message;

The first sending unit is specifically configured to send an RRC connection setup message carrying the second identifier information to the terminal device.
The access device according to any one of claims 16 to 20, wherein the access device further comprises:

a broadcast sending unit, configured to broadcast an indication message to the terminal device, where the indication message is used to indicate that the terminal device carries the identifier information in the outer air interface protocol layer of the RRC connection request message or carries the identifier information in the RRC connection request message. .
An access device is used as the second access device, and includes:

a message receiving unit, configured to receive a first message that is sent by the first access device from the terminal device, where the first message is used to request to access the network, and the first message carries the first identifier information, where the first The identifier information is used to determine whether the terminal device is allowed to access the network; the first access device does not support a high layer protocol, and the second access device supports a high layer protocol;

The identifier sending unit is configured to send the second identifier information to the first access device after the terminal device accesses the network, where the second identifier information is the same as the first identifier information.
The access device according to claim 22, wherein the first message is an RRC connection request message, and the first identification information is included in the RRC connection request message.
Access device according to claim 22 or 23, characterized in that

The identifier sending unit is specifically configured to send a second message to the first access device, where the second message is an RRC connection setup message, and the second identifier information is included in the RRC connection setup message.
The access device according to claim 23, wherein the access device further comprises:

a broadcast sending unit, configured to broadcast an indication message to the terminal device, where the indication message indicates that the terminal device carries the identifier information or the RRC connection request message in the RRC connection request message The outer air interface protocol layer carries identification information.
The access device according to claim 22 or 23, wherein the access device further comprises:

An interface establishing unit, configured to establish a communication interface with the first access device.