WO2020063395A1

WO2020063395A1 - Terminal capability transmission method and related device

Info

Publication number: WO2020063395A1
Application number: PCT/CN2019/106130
Authority: WO
Inventors: 李秉肇; 许斌; 陈磊; 王学龙
Original assignee: 华为技术有限公司
Priority date: 2018-09-27
Filing date: 2019-09-17
Publication date: 2020-04-02
Also published as: CN110958721A; CN110958721B

Abstract

The present application provides a terminal capability transmission method and a related device, for reducing network resource consumption for transmitting a terminal device capability. The method according to the embodiments of the present application comprises: an access network device establishing an RRC connection with a terminal device; the access network device receiving a context establishment message concerning the terminal device sent by a core network device; the access network device determining whether to request for the capability concerning the terminal device according to the context establishment message; and the access network device sending capability request information to the terminal device.

Description

Terminal capability transmission method and related equipment

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on September 27, 2018, with application number 201811133515.3, and the invention name is "Terminal Capability Transmission Method and Related Equipment", the entire contents of which are incorporated herein by reference. in.

Technical field

This application relates to the field of communications, and in particular, to a method for transmitting terminal capabilities and related equipment.

Background technique

Among the many terminal devices currently connected to the wireless communication network system, because different terminal devices have different hardware or software versions, the supported capabilities are not the same. In order to better provide services for terminal devices, communication networks need to know the capabilities of the terminals. In order to allocate network resources to terminal equipment.

Taking the carrier aggregation (CA) capability of the terminal device as an example, the CA capability of the terminal device is reported to the communication network in the form of carrier combination and band combination. Specifically, the terminal device includes support for each band combination. Number of carriers, carrier bandwidth, sub-carrier spacing (SCS), and multiple-input multiple-output (MIMO) layers, etc., the terminal device reports the CA capability to the communication network for communication The network knows which frequency band combinations are specifically supported by the terminal device, and can configure appropriate CA configuration information for the terminal device accordingly.

However, as more and more terminal devices are connected to the wireless communication network, and more and more capabilities are supported by the terminal devices, each terminal device needs to report the capabilities to the access network device. The capability is reported to the core network device. If the core network device has stored the capability of the terminal device, the transmission of the capability is unnecessary, resulting in a waste of network resources.

Summary of the Invention

This application provides a terminal capability transmission method and related equipment, which are used to reduce network resource consumption for transmitting the capability of a terminal device.

The first aspect of the present application provides a method for transmitting terminal capabilities, including: establishing an RRC connection between an access network device and the terminal device; and after establishing an RRC connection between the access network device and the terminal device, the access network device receives a terminal sent by the core network device The device's context establishment message; the access network device determines whether to request the capability from the terminal device according to the context establishment message; when the access network device determines the capability from the terminal device according to the context establishment message, the access network device sends the capability request information to the terminal device The type of capability request information can be information or messages, which enables the access network device to receive the capability feedback information sent by the terminal device according to the capability request information, thereby knowing the capabilities of the terminal device. Only when the core network device does not know the terminal device In the case of the capability of the access network device, the access network device needs to obtain the capability from the terminal device. When the capabilities of the terminal device are known, the core network device can send the context network establishment message to the access network device, thereby saving transmission capacity. Consumption of network resources.

With reference to the first aspect, in a first possible implementation manner, the establishment of the RRC connection between the access network device and the terminal device further includes: the access network device receives the capability indication information sent by the terminal device through the RRC connection establishment completion message.

The capability of a terminal device is described by capability information. If the capability of a terminal device is defined by capability identification information, the description of the capability can be simplified. Therefore, the capability of the terminal device can be represented by the capability identification information. After the capability of the terminal device is defined by the capability identification information, since the terminal device may be connected for the first time, or the terminal device may be reconnected, for the access network device, it is necessary to know whether the terminal device has the capability identification information. The terminal device needs to inform the access network device of its capability identification information reporting mechanism through the capability indication information. Specifically, the capability indication information can be carried on the RRC connection during the RRC connection between the access network device and the terminal device. In the establishment completion message, thereby saving network resources, the access network device receives the capability indication information sent by the terminal device through the RRC connection establishment completion message.

With reference to the first possible implementation manner of the first aspect, in the second possible implementation manner, the capability indication information is capability identification information, and further includes that the access network device is allowed to send the capability indication through a system broadcast message or an RRC connection establishment message. The indication of the information is sent to the terminal device, and the indication of the capability sending capability information is used to instruct the terminal device to send the capability identification information through the RRC connection establishment completion message.

The capability indication information is specifically capability identification information. The access network device sends an indication to the terminal device that the capability indication information is allowed to be sent through the system broadcast message or the RRC connection establishment message. If the terminal device supports the capability identification information reporting mechanism, the terminal device can The indication that the capability indication information is allowed to be sent sends the capability identification information through the RRC connection establishment completion message, and the access network device receives the capability indication information sent by the terminal device through the RRC connection establishment completion message.

With reference to the second possible implementation manner of the first aspect, the third possible implementation manner further includes: the access network device sends the capability identification information to the core network device through an initial terminal device message.

After the access network device receives the capability indication information sent by the terminal device through the RRC connection establishment completion message, it sends the initial terminal device message to the core network device. In order to reduce the consumption of network resources by sending capability identification information to the core network device separately, the access network The device may carry the capability identification information in the initial terminal device message when sending the initial terminal device message.

With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner, the access network device sends the capability identification information to the core network device through an initial terminal device message, including:

When the access network device has stored the capability information corresponding to the capability identification information, the access network device sends the capability identification information and the capability storage instruction information to the core network device through the initial terminal device message, and the capability storage instruction information is used to indicate the access network. The device has stored the capability information corresponding to the capability identification information;

or,

When the access network device does not store the capability information corresponding to the capability identification information, the access network device sends the capability identification information to the core network device through an initial terminal device message.

The access network device may know the capabilities of the terminal device. Before sending the capability identification information to the core network device, the access network device may first determine whether to store the capability information corresponding to the capability identification information. For different judgment results, when When the capability information corresponding to the stored capability identification information is detected, the access network device generates capability storage instruction information for indicating the capability information corresponding to the stored capability identification information, and stores the capability identification information and capability through the initial terminal device message. The instruction information is sent to the core network device; when it detects that the capability information corresponding to the capability identification information is not stored, the access network device sends the capability identification information to the core network device through an initial terminal device message. After the capability information corresponding to the capability identification information is stored, the core network device no longer needs to send the capability information, and it no longer needs to request the capability from the terminal device, which can further reduce the consumption of network resources.

With reference to the first possible implementation manner of the first aspect, in a fifth possible implementation manner, the capability indication information is capability identification support information, and the method further includes: the access network device determines the terminal equipment to support the capability identification information according to the capability identification support information. Escalation.

The capability indication information is specifically capability identification support information. When the terminal device receives the RRC connection establishment message, if the terminal device supports the capability identification information reporting mechanism, the terminal device can send the RRC connection establishment completion message according to the indication that the capability instruction information is allowed to be sent. Capability identification information. The access network device receives the capability identification support information sent by the terminal device through the RRC connection establishment completion message, and the access network device determines that the terminal device supports the capability identification information to report based on the capability identification support information.

With reference to any one of the first aspect to the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner, the access network device determines whether to request the capability from the terminal device according to the context establishment message, including:

When the context establishment message includes the capability identification information of the terminal device and the corresponding capability information, the access network device determines not to request the capability from the terminal device;

or,

When the context establishment message includes the capability identification information of the terminal device and does not include the capability information corresponding to the capability identification information or includes indication information that the capability does not exist, the access network device determines to request the capability information corresponding to the capability identification information from the terminal device;

or,

When the context establishment message does not include the capability identification information of the terminal device and the corresponding capability information, the access network device determines to request the terminal device for the capability identification information of the capabilities supported by the terminal device.

After the access network device receives the context establishment message, if the context establishment message includes the capability identification information and corresponding capability information, the access network device determines that it does not need to request the capability from the terminal device; if the context establishment message includes only the capability identification information, and does not Including the capability information corresponding to the capability identification information or including the capability non-existence indication information, the access network device can know the capability information corresponding to the capability identification information that is not stored in the core network device according to the capability non-existence indication information, and determines that it is necessary to request from the terminal device The capability information corresponding to the capability identification information; if the context establishment message does not include the capability identification information and the corresponding capability information, the access network device determines that the terminal device needs to request the capability identification information of the capability supported by the terminal device from the terminal device.

With reference to the sixth possible implementation manner of the first aspect, in a seventh possible implementation manner, the capability request information is used to instruct the terminal device to send capability identification information, or the capability request information is used to instruct the terminal device to send capability identification information and The corresponding capability information or the capability request information is used to instruct the terminal device to send the capability information corresponding to the specified capability identifier, and the specified capability identifier is the capability identifier in the capability identifier information.

If the access network device receives the context establishment message that includes only the capability identification information and does not include the capability information corresponding to the capability identification information or includes indication information that the capability does not exist, and needs to request the capability information corresponding to the capability identification information from the terminal device, then The capability request information sent by the network access device to the terminal device is used to instruct the terminal device to send the capability identification information and the corresponding capability information. It should be noted that when the capability identification information includes the specified capability identification, the capability request information is used for Instruct the terminal device to send the capability information corresponding to the specified capability identifier. If the access network device receives the context establishment message that does not include the capability identification information and the corresponding capability information, the access network device determines that the terminal device needs to request the terminal device for the capability supported by the terminal device. Capability identification information, then the capability request information is used to instruct the terminal device to send capability identification information.

With reference to the seventh possible implementation manner of the first aspect, in the eighth possible implementation manner, the capability identification information is used to represent a set of capabilities supported by a terminal device, or the capability identification information includes at least two capability identifiers, each of which The capability identifier corresponds to a subset of the capability set supported by the terminal device.

If there are multiple capabilities supported by the terminal device, the capability identification information may represent a set of capabilities supported by the terminal device, or the capability identification information may be a capability identification list. The capability identification list includes at least two capability identifiers, and one capability identifier corresponds to Corresponds to a subset of the capability set supported by the terminal device. For example, the capability set supported by the terminal device includes capability 1, capability 2, and capability 3. The capability identification information may be (ID1, ID2, ID3), where ID1 corresponds to the capability. 1, ID2 corresponds to capability 2, ID3 corresponds to capability 3, or the capability identification information may be (ID4, ID5), where ID4 corresponds to a subset of the capability set, and the subset includes capability 1 and capability 2, and ID5 corresponds to capability 3.

With reference to the eighth possible implementation manner of the first aspect, in a ninth possible implementation manner, the method further includes: when a connection interface is established between the access network device and the target access network device, the access network device connects the terminal The capability information corresponding to the capability identification information of the device is sent to the target access network device; when the access network device switches the terminal device with the target access network device, the access network device sends a switching instruction to the target access network device to switch The instruction includes the capability identification information of the terminal device, so that the target access network device determines the capability of the terminal device according to the handover instruction.

In the current wireless communication network, the access network devices are connected to each other through the X2 interface to form a mesh network. The X2 interface supports the direct transmission of data and signaling. The access network device can identify the capability identification information of the terminal device and The corresponding capability information is sent to the target access network device. When the access network device and the target access network device switch the terminal device, the access network device sends a switching instruction to the target access network device. , The target access network device has obtained the capability information corresponding to the capability identification information of the terminal device sent by the access network device, then only the capability identification information of the terminal device needs to be carried in the handover instruction, and the target access network device according to the capability identification information The capability information corresponding to the capability identification information can determine the capability of the terminal device. Compared with the current handover, only the capability identification information needs to be transmitted, but no capability information needs to be transmitted, which significantly reduces the network resource consumption during terminal device handover.

A second aspect of the present application provides a terminal capability transmission method, including: an access network device establishes an RRC connection with the terminal device, the access network device receives a context establishment message of the terminal device sent by the core network device, and the access network device according to the context The establishment message determines whether to request the capability from the terminal device. The difference between the second aspect and the first aspect is that the access network device does not send the capability request information to the terminal device. If the access network device has acquired the capability of the terminal device, it is not necessary The capability request information is sent to the terminal device, or the core network device carries the capability information of the terminal device in the context establishment message, and the access network device obtains the capability of the terminal device through the context establishment message. For specific other possible implementation manners, refer to the sixth possible implementation manner of the first aspect.

A third aspect of the present application provides a terminal capability transmission method, including: when an access network device establishes an RRC connection with the terminal device, if communication between the terminal device and the access network device is to be implemented, context establishment is required first, Context establishment refers to the establishment of a context session for information transmission between the access network device and the terminal device. The establishment process of the context session is the process of establishing a bearer, including the signaling bearer and the data bearer. The signaling bearer can be completed after the establishment of the signaling bearer. Signaling interaction, data packets can be sent / received after the data bearer is built, and the context establishment is initiated by the access network device, then the core network device generates the context creation message of the terminal device, and needs to know the capabilities of the terminal device to be better Allocate network resources for terminal equipment. If the core network equipment stores the capability information of the terminal equipment, the capability information needs to be sent to the access network equipment, so that the access network equipment also knows the capabilities of the terminal equipment. Allow access network equipment and terminal equipment to communicate, in order to save the core network It is a waste of network resources when the device sends the capability information separately to the access network device. The corresponding capability information field can be added to the context establishment message to carry the capability information. If the capability information is not stored in the core network device, the The capability information field may be set to be empty, or set to indicate that the core network device does not have the capability information of the terminal device, or the context establishment message carries information indicating that the access network device obtains capabilities from the terminal device. The context establishment message is used by the access network device to determine whether to send the capability request information to the terminal device, so that the access network device needs to obtain the capability from the terminal device when the core network device does not know the capability of the terminal device. When the capabilities of the terminal equipment are known, the core network equipment can inform the access network equipment through the context establishment message, thereby saving the network resource consumption of the transmission capability.

With reference to the third aspect, in a first possible implementation manner, before the core network device generates the context establishment message of the terminal device, the method further includes: the core network device receives the initial terminal device message sent by the access network device.

Before the core network device and the terminal device perform context establishment, the access network device must send an initial terminal device message to the core network device, so that the core network device can determine the terminal device that needs context establishment according to the initial terminal device message. Therefore, the core The network device receives the initial terminal device message sent by the access network device.

With reference to the first possible implementation manner of the third aspect, in a second possible implementation manner, the core network device generates a context establishment message of the terminal device, including:

The core network device determines the terminal device according to the initial terminal device message; the core network device determines whether to store the capability identification information of the terminal device and the corresponding capability information;

When the core network device has stored the capability identification information and the corresponding capability information, the core network device generates a context establishment message of the terminal device according to the capability identification information and the corresponding capability information;

or,

When the core network device has stored the capability identification information and the capability information corresponding to the capability identification information is not stored, the core network device generates a context establishment message of the terminal device according to the capability identification information;

or,

When the core network device has stored the capability identification information and the capability information corresponding to the capability identification information is not stored, the core network device generates the capability non-existence indication information corresponding to the capability identification information, and generates the capability identification information and the capability non-existence indication information. The context setup message of the terminal device;

or,

When the core network device does not store the capability identification information and the corresponding capability information, the core network device generates a context establishment message of the terminal device.

After the core network device receives the initial terminal device message, the terminal device is determined according to the initial terminal device message. The core network device determines whether the capability identification information of the terminal device and the corresponding capability information are stored. When the capability identification information and the corresponding When the capability information is available, the core network device generates a context establishment message according to the capability identification information and the corresponding capability information. When the capability identification information is stored and the capability information corresponding to the capability identification information is not stored, the core network device generates a context establishment message according to the capability identification information. Message; when the capability identification information is stored and the capability information corresponding to the capability identification information is not stored, the core network device generates the capability non-existence indication information corresponding to the capability identification information, and generates a context based on the capability identity information and the capability non-existence indication information Setup message; when the capability identification information and corresponding capability information are not stored, the core network device generates a context setup message. By enabling the access network device to obtain the capability information corresponding to the capability identification information of the terminal device in the context establishment message, there is no need to request the capability from the terminal device; according to the context establishment message, the capability information corresponding to the capability identification information of the terminal device is not obtained. The capability request information needs to be sent to the terminal device, and the access network device obtains the capability of the terminal device through the capability feedback information fed back by the terminal device.

With reference to the first possible implementation manner of the third aspect, in a third possible implementation manner, the initial terminal device message includes capability identification information,

The core network device generates a context setup message for the terminal device, including:

The core network device determines the terminal device according to the initial terminal device message, and obtains the capability identification information;

When the core network device has stored the capability information corresponding to the capability identification information, the core network device generates a context establishment message of the terminal device according to the capability identification information and the corresponding capability information;

or,

When the core network device does not store the capability information corresponding to the capability identification information, the core network device generates indication information that the capability corresponding to the capability identification information does not exist, and generates a terminal device context establishment message according to the capability identification information and the capability non-existent indication information.

When the core network device receives the capability identification information in the initial terminal device message, the terminal device is determined according to the initial terminal device message. The core network device determines whether the capability identification information of the terminal device and the corresponding capability information are stored. When the capability information corresponding to the identification information is generated, the core network device generates a context establishment message according to the capability identification information and the corresponding capability information. When the capability information corresponding to the capability identification information is not stored, the core network device generates a capability corresponding to the capability identification information that does not exist. The indication information is used to generate a context establishment message according to the capability identification information and the indication information that the capability does not exist. By enabling the access network device to obtain the capability information corresponding to the capability identification information of the terminal device in the context establishment message, there is no need to request the capability from the terminal device; according to the context establishment message, the capability information corresponding to the capability identification information of the terminal device is not obtained. The capability request information needs to be sent to the terminal device, and the access network device obtains the capability of the terminal device through the capability feedback information fed back by the terminal device.

With reference to the first possible implementation manner of the third aspect, in a fourth possible implementation manner, the initial terminal device message includes capability identification information and capability storage indication information, and the capability storage indication information is used to indicate that the access network device has stored the capability identification Capability information corresponding to the information,

The core network device determines the terminal device according to the initial terminal device message, and obtains the capability identification information and the capability storage indication information;

The core network device determines the capability information corresponding to the stored capability identification information of the access network device according to the capability storage instruction information;

When the core network device has stored the capability information corresponding to the capability identification information, the core network device generates a context establishment message of the terminal device, and the context establishment message does not include the capability information of the terminal device;

or,

When the core network device receives the capability identification information and capability storage instruction information in the initial terminal device message, the core network device determines the terminal device according to the initial terminal device message, and obtains the capability identification information and capability storage instruction information. The core network device The storage instruction information determines that the access network device has stored the capability information corresponding to the capability identification information, and the core network device determines whether the capability identification information of the terminal device and the corresponding capability information are stored. When the capability information corresponding to the capability identification information is stored, The core network device generates a context establishment message; when the capability information corresponding to the capability identification information is not stored, the core network device generates a context establishment message according to the capability identification information. When the access network device has stored the capability information corresponding to the capability identification information, the capability information does not need to be carried in the context establishment message, which further reduces network resource consumption.

With reference to any one of the second to fourth possible implementation manners in the third aspect, in a fifth possible implementation manner, the capability identification information is used to indicate a capability set supported by a terminal device, or the capability identification information includes at least Two capability identifiers, each of which corresponds to a subset of the capability set supported by the terminal device.

A fourth aspect of the present application provides a terminal capability transmission method, including: when an access network device establishes an RRC connection with the terminal device, the core network device generates a context establishment message of the terminal device, and the core network device sends the context establishment message To the access network device, the context establishment message contains the capability information of the terminal device. The fourth aspect corresponds to the second aspect. The reason for including the capability information of the terminal device in the context establishment message is to enable the access network device to obtain The capability of the terminal device, so that the access network device does not need to send the capability request information to the terminal device. For specific other possible implementation manners, refer to any one of the second to fourth possible implementation manners in the third aspect.

A fifth aspect of the present application provides a terminal capability transmission method, including: establishing a RRC connection between a terminal device and an access network device; and after establishing an RRC connection between the terminal device and the access network device, when the access network device sends the RRC connection through the core network device, When the context establishment message determines that the capability request is required, the terminal device receives the capability request information sent by the access network device; the terminal device sends the capability feedback information to the access network device according to the capability request information, so that the access network device obtains the terminal device according to the capability feedback information Only when the access network equipment requests the capability, the terminal equipment reports the energy, thereby saving the network resource consumption of the transmission capability.

With reference to the fifth aspect, in a first possible implementation manner, establishing the RRC connection between the terminal device and the access network device further includes: the terminal device sends the capability indication information to the access network device through an RRC connection establishment completion message.

The capability of a terminal device is described by capability information. If the capability of a terminal device is defined by capability identification information, the description of the capability can be simplified. Therefore, the capability of the terminal device can be represented by the capability identification information. After the capability of the terminal device is defined by the capability identification information, since the terminal device may be connected for the first time, or the terminal device may be reconnected, for the access network device, it is necessary to know whether the terminal device has the capability identification information. Therefore, the terminal device needs to notify the access network device of its capability identification information reporting mechanism through the capability indication information, that is, the terminal device 3 can indicate the capabilities it supports by sending the capability identification information. During the process of establishing the RRC connection by the access network device, the terminal device carries the capability indication information in the RRC connection establishment completion message, thereby saving network resources.

With reference to the first possible implementation manner of the fifth aspect, in a second possible implementation manner, the capability indication information is capability identification information,

Before the terminal device sends the capability indication information to the access network device through the RRC connection establishment completion message, it further includes:

The terminal device receives the indication of sending capability indication information sent by the access network device through a system broadcast message or an RRC connection establishment message. The indication of sending capability indication information is used to instruct the terminal device to send capability identification information through an RRC connection establishment completion message.

The capability indication information is specifically capability identification information. The access network device sends an indication to the terminal device that the capability indication information is allowed to be sent through the system broadcast message or the RRC connection establishment message. The terminal device receives the access network through the system broadcast message or the RRC connection establishment message. The indication that the device is allowed to send the capability indication information. If the terminal device supports the capability identification information reporting mechanism, the terminal device can send the capability identification information through the RRC connection establishment completion message according to the indication that the capability indication information is allowed to be sent.

With reference to the first possible implementation manner of the fifth aspect, in a third possible implementation manner, the capability indication information is capability identification support information,

The terminal device sends the capability indication information to the access network device through an RRC connection establishment complete message, including:

When the terminal device supports the capability identification information reporting mechanism, the terminal device generates capability identification support information and sends the capability identification support information to the access network device through an RRC connection establishment completion message.

The capability indication information is specifically capability identification support information. When the terminal device receives the RRC connection establishment message, if the capability identification information reporting mechanism is supported, the terminal device can send the capability identification support information to the access network through the RRC connection establishment completion message. Equipment, the access network equipment determines the terminal equipment to support the capability identification information according to the capability identification support information and reports it.

With reference to any one of the fifth aspect to the third possible implementation manner of the fifth aspect, in a fourth possible implementation manner, the capability request information is used to instruct the terminal device to send capability identification information, or the capability request information is used to indicate The terminal device sends the capability identification information and the corresponding capability information, or the capability request information is used to instruct the terminal device to send the capability information corresponding to the specified capability identification, and the specified capability identification is the capability identification in the capability identification information.

If the access network device receives the context establishment message that includes only the capability identification information and does not include the capability information corresponding to the capability identification information or includes indication information that the capability does not exist, the terminal device needs to request the capability information corresponding to the capability identification information. The capability request The information is used to instruct the terminal device to send capability identification information and corresponding capability information. It should be noted that when the capability identification information includes the specified capability identification, the capability request information is used to instruct the terminal device to send the corresponding capability identification information. Capability information; if the access network device receives the context establishment message that does not include capability identification information and corresponding capability information, the capability request information is used to instruct the terminal device to send capability identification information.

With reference to the fourth possible implementation manner of the fifth aspect, in a fifth possible implementation manner, the terminal device sends the capability feedback information to the access network device according to the capability request information, including:

When the capability request information is used to instruct the terminal device to send capability identification information, the terminal device sends capability feedback information to the access network device, and the capability feedback information includes capability identification information;

or,

When the capability request information is used to instruct the terminal device to send capability identification information and corresponding capability information, the terminal device sends capability feedback information to the access network device, and the capability feedback information includes capability identification information and corresponding capability information;

or,

When the capability request information is used to instruct the terminal device to send capability information corresponding to the specified capability identifier, the terminal device sends capability feedback information to the access network device, and the capability feedback information includes capability information corresponding to the specified capability identifier.

When the capability request information is used to instruct the terminal device to send capability identification information, the terminal device sends the capability feedback information to the access network device according to the corresponding capability request information, and the capability feedback information includes the capability identification information; or, the capability request information is used to instruct the terminal device When sending the capability identification information and the corresponding capability information, the terminal device sends the capability feedback information to the access network device according to the corresponding capability request information, and the capability feedback information includes the capability identification information and the corresponding capability information; or, the capability request information is used to indicate When the terminal device sends the capability information corresponding to the specified capability identifier, the terminal device sends the capability feedback information to the access network device according to the corresponding capability request information, and the capability feedback information includes the capability information corresponding to the specified capability identifier. The terminal equipment feeds back according to the capability request information of the access network equipment. It may only have the capability identification information or the capability information corresponding to the specified capability identifier, rather than the capability information of the capability set of the terminal equipment, which reduces the waste of network resources.

With reference to the fifth possible implementation manner of the fifth aspect, in a sixth possible implementation manner, the capability identification information is used to indicate a set of capabilities supported by a terminal device, or the capability identification information includes at least two capability identifiers, each of which includes: Identifies a subset of the set of capabilities supported by the corresponding terminal device.

A sixth aspect of the present application provides a terminal capability transmission method, including: establishing a RRC connection between a terminal device and an access network device; and after establishing an RRC connection between the terminal device and the access network device, when the access network device sends the RRC connection through the core network device, When the context establishment message determines that the capability request is not required, the terminal device will not receive the capability request information sent by the access network device. The sixth aspect corresponds to the second and fourth aspects. The reason why the terminal device does not receive the capability request information sent by the access network device is because the access network device has acquired the capability of the terminal device, so the terminal device does not The capability feedback information needs to be sent to the access network device according to the capability request information.

A seventh aspect of the present application provides an access network device, including:

RRC module, used to establish an RRC connection with a terminal device;

A receiving module, configured to receive a context establishment message of a terminal device sent by a core network device;

A processing module, configured to determine whether to request a capability from the terminal device according to the context establishment message received by the receiving module;

The sending module is configured to send capability request information to the terminal device.

The RRC module establishes an RRC connection with the terminal device. After the RRC module establishes the RRC connection with the terminal device, the receiving module receives the context message of the terminal device sent by the core network device; the processing module determines whether to request the capability from the terminal device according to the context establishment message; When the context establishment message determines the capability request from the terminal device, the sending module sends the capability request information to the terminal device. The type of the capability request information can be information or a message, so that the access network device receives the terminal device's information sent by the terminal device according to the capability request information. Capability feedback information, so as to know the capabilities of the terminal equipment. Only when the core network equipment does not know the capabilities of the terminal equipment, the access network equipment needs to obtain the capabilities from the terminal equipment. When the capabilities of the terminal equipment are known, the core The network device can send the access network device through the context establishment message, thereby saving the network resource consumption of the transmission capability.

With reference to the seventh aspect, in a first possible implementation manner,

The receiving module is further configured to receive the capability indication information sent by the terminal device through an RRC connection establishment completion message.

The capability of a terminal device is described by capability information. If the capability of a terminal device is defined by capability identification information, the description of the capability can be simplified. Therefore, the capability of the terminal device can be represented by the capability identification information. After the capability of the terminal device is defined by the capability identification information, since the terminal device may be connected for the first time, or the terminal device may be reconnected, for the access network device, it is necessary to know whether the terminal device has the capability identification information. The terminal device needs to inform the access network device of its capability identification information reporting mechanism through the capability indication information. Specifically, the capability indication information can be carried on the RRC connection during the RRC connection between the access network device and the terminal device. In the establishment completion message, thereby saving network resources, the receiving module receives the capability indication information sent by the terminal device through the RRC connection establishment completion message.

With reference to the first possible implementation manner of the seventh aspect, in a second possible implementation manner, the capability indication information is capability identification information,

The sending module is further configured to send an instruction to allow the sending of capability indication information to the terminal device through a system broadcast message or an RRC connection establishment message, and the instruction to allow sending of the capability indication information is used to instruct the terminal device to send the capability identification information through the RRC connection establishment completion message. .

The capability indication information is specifically capability identification information. The access network device sends an indication to the terminal device that the capability indication information is allowed to be sent through the system broadcast message or the RRC connection establishment message. If the terminal device supports the capability identification information reporting mechanism, the terminal device can The indication that the capability indication information is allowed to be sent sends the capability identification information through the RRC connection establishment completion message, and the sending module receives the capability indication information sent by the terminal device through the RRC connection establishment completion message.

With reference to the second possible implementation manner of the seventh aspect, in a third possible implementation manner,

The sending module is further configured to send the capability identification information to the core network device through an initial terminal device message.

After the receiving module receives the capability indication information sent by the terminal device through the RRC connection establishment completion message, the sending module sends the initial terminal device message to the core network device. In order to reduce the consumption of network resources by sending the capability identification information to the core network device separately, the access network The device may carry the capability identification information in the initial terminal device message when sending the initial terminal device message.

With reference to the third possible implementation manner of the seventh aspect, in the fourth possible implementation manner,

The sending module is further configured to send the capability identification information and the capability storage instruction information to the core network device through the initial terminal device message when the capability information corresponding to the capability identification information is stored, and the capability storage instruction information is used to indicate that the access network device has Storing capability information corresponding to capability identification information;

or,

The sending module is further configured to send the capability identification information to the core network device through an initial terminal device message when the capability information corresponding to the capability identification information is not stored.

The access network device may know the capabilities of the terminal device. Before sending the capability identification information to the core network device, the access network device may first determine whether to store the capability information corresponding to the capability identification information. For different judgment results, when When the capability information corresponding to the stored capability identification information is detected, the sending module generates capability storage indication information for indicating the capability information corresponding to the stored capability identification information, and the capability identification information and the capability storage indication information are transmitted through the initial terminal device message. Sending to the core network device; when detecting that the capability information corresponding to the capability identification information is not stored, the sending module sends the capability identification information to the core network device through an initial terminal device message. After the capability information corresponding to the capability identification information is stored, the core network device is no longer required to send capability information, and it is no longer necessary to request the capability from the terminal device, which can further reduce the consumption of network resources.

With reference to the first possible implementation manner of the seventh aspect, in a sixth possible implementation manner, the capability indication information is capability identification support information,

The processing module is further configured to determine, according to the capability identification support information, that the terminal device supports the capability identification information and report it.

The capability indication information is specifically capability identification support information. When the terminal device receives the RRC connection establishment message, if the terminal device supports the capability identification information reporting mechanism, the terminal device can send the RRC connection establishment completion message according to the indication that the capability instruction information is allowed to be sent. Capability identification information. The receiving module receives the capability identification support information sent by the terminal device through the RRC connection establishment completion message, and the processing module determines that the terminal device supports the capability identification information and reports it based on the capability identification support information.

With reference to any one of the seventh aspect to the fifth possible implementation manner of the seventh aspect, in a sixth possible implementation manner,

The processing module is further configured to determine not to request the capability from the terminal device when the context establishment message includes the capability identification information of the terminal device and the corresponding capability information;

or,

The processing module is further configured to determine to request the terminal device for the capability identification when the context establishment message includes the capability identification information of the terminal device and does not include the capability information corresponding to the capability identification information or includes indication information that the capability corresponding to the capability identification information does not exist. Capability information corresponding to the information;

or,

The processing module is further configured to determine, when the context establishment message does not include the capability identification information of the terminal device and the corresponding capability information, requesting the terminal device for the capability identification information of the capability supported by the terminal device.

After the receiving module receives the context establishment message, if the context establishment message includes capability identification information and corresponding capability information, the processing module determines that it is not necessary to request the capability from the terminal device; if the context establishment message includes only capability identification information and does not include capability identification information The corresponding capability information or the indication information that the capability does not exist, the processing module can know the capability information corresponding to the capability identification information that is not stored in the core network device according to the indication information that the capability does not exist, and the processing module determines that the terminal equipment needs to request the capability identification information corresponding If the context establishment message does not include the capability identification information and the corresponding capability information, the processing module determines that the terminal device needs to request the capability identification information of the capability supported by the terminal device.

With reference to the sixth possible implementation manner of the seventh aspect, in a seventh possible implementation manner, the capability request information is used to instruct the terminal device to send capability identification information, or the capability request information is used to instruct the terminal device to send capability identification information and The corresponding capability information or the capability request information is used to instruct the terminal device to send the capability information corresponding to the specified capability identifier, and the specified capability identifier is the capability identifier in the capability identifier information.

With reference to the seventh possible implementation manner of the seventh aspect, in an eighth possible implementation manner, the capability identification information is used to represent a set of capabilities supported by a terminal device, or the capability identification information includes at least two capability identifiers, each The capability identifier corresponds to a subset of the capability set supported by the terminal device.

With reference to the eighth possible implementation manner of the seventh aspect, in a ninth possible implementation manner,

The sending module is further configured to send the capability information corresponding to the capability identification information of the terminal device to the target access network device when a connection interface is established with the target access network device;

The sending module is further configured to send a switching instruction to the target access network device when the terminal device is switched with the target access network device. The switching instruction includes the capability identification information of the terminal device, so that the target access network device determines according to the switching instruction. End-device capabilities.

In the current wireless communication network, the access network devices are connected to each other through the X2 interface to form a mesh network. The X2 interface supports the direct transmission of data and signaling. The access network device can identify the capability identification information of the terminal device and The corresponding capability information is sent to the target access network device. When the access network device switches the terminal device with the target access network device, the sending module sends a switching instruction to the target access network device. Because the target is connected on the X2 interface, the target The access network device has obtained the capability information corresponding to the capability identification information of the terminal device sent by the access network device. Then, only the capability identification information of the terminal device needs to be carried in the handover instruction. The target access network device according to the capability identification information and capabilities The capability information corresponding to the identification information can determine the capability of the terminal device. Compared with the current handover, only the capability identification information needs to be transmitted, but no capability information needs to be transmitted, which significantly reduces the network resource consumption during terminal device handover.

An eighth aspect of the present application provides a core network device, including:

A processing module, configured to generate a context establishment message of the terminal device when the access network device establishes a radio resource control RRC connection with the terminal;

The sending module is configured to send the context establishment message generated by the processing module to the access network device. The context establishment message is used by the access network device to determine whether to send the capability request information to the terminal device.

When an RRC connection is established between an access network device and a terminal device, if communication between the terminal device and the access network device is to be implemented, a context establishment is required first. The context establishment refers to the establishment of a connection between the access network device and the terminal device. For the context session of information transmission, the establishment of the context session is the process of establishing the bearer, including the signaling bearer and the data bearer. After the signaling bearer is established, the signaling interaction can be performed. After the data bearer is established, the data packet can be sent / received. The context establishment is initiated by the access network device, then the processing module generates the context establishment message of the terminal device, and needs to know the capabilities of the terminal device to better allocate network resources to the terminal device. If the terminal is stored in the core network device The capability information of the device needs to send the capability information to the access network device, so that the access network device also knows the capabilities of the terminal device, so that the access network device and the terminal device can communicate. In order to save the sending module separately Wasting network resources when sending capability information to access network equipment, The corresponding capability information field can be added to the context establishment message to carry the capability information. If the core network device does not store the capability information, the capability information field in the context establishment message can be set to empty or set to indicate that the core network device does not have The field content of the capability information of the terminal device, or the context establishment message carries information indicating that the access network device acquires capabilities from the terminal device. This makes it necessary for the access network device to obtain capabilities from the terminal device when the core network device does not know the capabilities of the terminal device. When the core network device knows the capabilities of the terminal device, the core network device can inform the connection via a context establishment message. Network access equipment, thereby saving network resource consumption for transmission capabilities.

With reference to the eighth aspect, in a first possible implementation manner, the core network device further includes: a receiving module;

A receiving module, configured to receive an initial terminal device message sent by an access network device.

Before the core network device and the terminal device perform context establishment, the receiving module must send an initial terminal device message to the core network device, so that the core network device can determine the terminal device that needs context establishment according to the initial terminal device message. Therefore, the core network device Receive the initial terminal device message sent by the access network device.

With reference to the first possible implementation manner of the fifth aspect, in the second possible implementation manner,

A processing module, further configured to determine a terminal device according to the initial terminal device message;

The processing module is further configured to determine whether to store capability identification information of the terminal device and corresponding capability information;

The processing module is further configured to generate a context establishment message of the terminal device according to the capability identification information and the corresponding capability information when the capability identification information and the corresponding capability information are stored;

or,

The processing module is further configured to generate a context establishment message of the terminal device according to the capability identification information when the capability identification information is stored and the capability information corresponding to the capability identification information is not stored;

or,

The processing module is further configured to generate, when the capability identification information is stored and the capability information corresponding to the capability identification information is not stored, indication information indicating that the capability corresponding to the capability identification information does not exist, and generate the capability identification information and the capability non-existent instruction information. The context setup message of the terminal device;

or,

The processing module is further configured to generate a context establishment message of the terminal device when the capability identification information and the corresponding capability information are not stored.

After receiving the initial terminal device message, the receiving module determines the terminal device according to the initial terminal device message, and the processing module determines whether the capability identification information and corresponding capability information of the terminal device are stored. When the capability identification information and the corresponding capability information are stored, When the processing module generates the context establishment message according to the capability identification information and the corresponding capability information; when the capability identification information is stored and the capability information corresponding to the capability identification information is not stored, the processing module generates a context establishment message according to the capability identification information; When the capability identification information is stored and the capability information corresponding to the capability identification information is not stored, the processing module generates indication information of the capability non-existence corresponding to the capability identification information, and generates a context establishment message according to the capability identification information and the capability non-existent indication information; When the capability identification information and the corresponding capability information are stored, the processing module generates a context establishment message. By enabling the access network device to obtain the capability information corresponding to the capability identification information of the terminal device in the context establishment message, there is no need to request the capability from the terminal device; according to the context establishment message, the capability information corresponding to the capability identification information of the terminal device is not obtained. The capability request information needs to be sent to the terminal device, and the access network device obtains the capability of the terminal device through the capability feedback information fed back by the terminal device.

With reference to the first possible implementation manner of the eighth aspect, in a third possible implementation manner, the initial terminal device message includes capability identification information,

The processing module is further configured to determine a terminal device according to the initial terminal device message and obtain capability identification information;

The processing module is further configured to generate a context establishment message of the terminal device according to the capability identification information and the corresponding capability information when the capability information corresponding to the capability identification information is stored;

or,

The processing module is further configured to generate, when the capability information corresponding to the capability identification information is not stored, indication information indicating that the capability corresponding to the capability identification information does not exist, and generate a context establishment message of the terminal device according to the capability identification information and the indication information that the capability does not exist.

When the receiving module receives the capability identification information in the initial terminal equipment message, the processing module determines the terminal equipment according to the initial terminal equipment message, and the processing module determines whether the capability identification information and corresponding capability information of the terminal equipment are stored. When the capability information corresponding to the identification information, the processing module generates a context establishment message according to the capability identification information and the corresponding capability information; when the capability information corresponding to the capability identification information is not stored, the processing module generates indication information that the capability corresponding to the capability identification information does not exist. , Generating a context establishment message according to the capability identification information and the indication information that the capability does not exist. By enabling the access network device to obtain the capability information corresponding to the capability identification information of the terminal device in the context establishment message, there is no need to request the capability from the terminal device; according to the context establishment message, the capability information corresponding to the capability identification information of the terminal device is not obtained. The capability request information needs to be sent to the terminal device, and the access network device obtains the capability of the terminal device through the capability feedback information fed back by the terminal device.

With reference to the first possible implementation manner of the eighth aspect, in a fourth possible implementation manner, the initial terminal device message includes capability identification information and capability storage indication information, and the capability storage indication information is used to indicate that the access network device has stored the capability identification Capability information corresponding to the information,

The processing module is further configured to determine a terminal device according to the initial terminal device message, and obtain capability identification information and capability storage indication information;

The processing module is further configured to determine the capability information corresponding to the stored capability identification information of the access network device according to the capability storage instruction information;

The processing module is further configured to generate a context establishment message of the terminal device when the capability information corresponding to the capability identification information is stored, and the context establishment message does not include the capability information of the terminal device;

or,

When the receiving module receives the capability identification information and capability storage instruction information in the initial terminal device message, the processing module determines the terminal device according to the initial endpoint device message, and obtains the capability identification information and capability storage instruction information. The processing module stores the capability information according to the capability Determine that the access network device has stored the capability information corresponding to the capability identification information, and the processing module determines whether the capability identification information of the terminal device and the corresponding capability information are stored. When the capability information corresponding to the capability identification information is stored, the processing module generates a context Establishment message; when the capability information corresponding to the capability identification information is not stored, the processing module generates a context establishment message according to the capability identification information. When the access network device has stored the capability information corresponding to the capability identification information, the capability information does not need to be carried in the context establishment message, which further reduces network resource consumption.

With reference to any one of the second to fourth possible implementation manners of the eighth aspect, in a fifth possible implementation manner, the capability identification information is used to indicate a capability set supported by a terminal device, or the capability identification information includes at least Two capability identifiers, each of which corresponds to a subset of the capability set supported by the terminal device.

A ninth aspect of the present application provides a terminal device, which includes:

RRC module, used to establish an RRC connection with an access network device;

A receiving module, configured to receive capability request information sent by an access network device;

The sending module is configured to send the capability feedback information to the access network device according to the capability request information.

The RRC module establishes an RRC connection with the access network device. After the RRC module establishes an RRC connection with the access network device, the receiving module receives the access network device when the access network device determines that the request capability is required through the context establishment message sent by the core network device. The capability request information sent; the sending module sends the capability feedback information to the access network device according to the capability request information, so that the access network device obtains the capability of the terminal device according to the capability feedback information, and the terminal device is only available when the access network device requests the capability. Report energy, thereby saving network resource consumption for transmission capabilities.

With reference to the ninth aspect, in a first possible implementation manner,

The sending module is further configured to send the capability indication information to the access network device through an RRC connection establishment complete message.

The capability of a terminal device is described by capability information. If the capability of a terminal device is defined by capability identification information, the description of the capability can be simplified. Therefore, the capability of the terminal device can be represented by the capability identification information. After the capability of the terminal device is defined by the capability identification information, since the terminal device may be connected for the first time, or the terminal device may be reconnected, for the access network device, it is necessary to know whether the terminal device has the capability identification information. Therefore, the sending module needs to inform the access network device of its capability identification information reporting mechanism through the capability indication information, that is, the terminal device 3 can indicate the capabilities it supports by sending the capability identification information. During the process of establishing the RRC connection by the access network device, the terminal device carries the capability indication information in the RRC connection establishment completion message, thereby saving network resources.

With reference to the first possible implementation manner of the ninth aspect, in a second possible implementation manner, the capability indication information is capability identification information,

The receiving module is further configured to receive, through a system broadcast message or an RRC connection establishment message, an indication of the capability sending capability indication information sent by the access network device, and the indication of the capability sending capability indication information is used to instruct the terminal device to complete the message sending capability through the RRC connection establishment completion message. Identification information.

The capability indication information is specifically capability identification information. The access network device sends an indication to the terminal device that the capability indication information is allowed to be sent through the system broadcast message or the RRC connection establishment message, and the receiving module receives the access network through the system broadcast message or the RRC connection establishment message. The indication that the device is allowed to send the capability indication information. If the terminal device supports the capability identification information reporting mechanism, the terminal device can send the capability identification information through the RRC connection establishment completion message according to the indication that the capability indication information is allowed to be sent.

With reference to the first possible implementation manner of the ninth aspect, in a third possible implementation manner, the capability indication information is capability identification support information,

The sending module is further configured to generate the capability identification support information when the capability identification information reporting mechanism is supported, and send the capability identification support information to the access network device through an RRC connection establishment completion message.

With reference to any one of the ninth aspect to the third possible implementation manner of the ninth aspect, in a fourth possible implementation manner, the capability request information is used to instruct the terminal device to send capability identification information, or the capability request information is used to indicate The terminal device sends the capability identification information and the corresponding capability information, or the capability request information is used to instruct the terminal device to send the capability information corresponding to the specified capability identification, and the specified capability identification is the capability identification in the capability identification information.

With reference to the fourth possible implementation manner of the ninth aspect, in the fifth possible implementation manner,

The sending module is further configured to send the capability feedback information to the access network device when the capability request information is used to instruct the terminal device to send the capability identification information, and the capability feedback information includes the capability identification information;

or,

The sending module is further configured to send the capability feedback information to the access network device when the capability request information is used to instruct the terminal device to send the capability identification information and the corresponding capability information, and the capability feedback information includes the capability identification information and the corresponding capability information;

or,

The sending module is further configured to send the capability feedback information to the access network device when the capability request information is used to instruct the terminal device to send the capability information corresponding to the specified capability identifier, and the capability feedback information includes the capability information corresponding to the specified capability identifier.

With reference to the fifth possible implementation manner of the ninth aspect, in a sixth possible implementation manner, the capability identification information is used to indicate a set of capabilities supported by a terminal device, or the capability identification information includes at least two capability identifiers, each of which includes: Identifies a subset of the set of capabilities supported by the corresponding terminal device.

A tenth aspect of the present application provides an access network device including a memory, a processor, and a program stored on the memory and executable on the processor, and is characterized in that the first aspect to the first aspect are implemented when the processor executes the program. A method for transmitting terminal capabilities in any one of the ninth implementation manners.

The eleventh aspect of the present application provides a core network device including a memory, a processor, and a program stored in the memory and executable on the processor, and is characterized in that the third aspect to the third aspect are implemented when the processor executes the program. A method for transmitting terminal capabilities in any one of the fifth implementation manners.

A twelfth aspect of the present application provides a terminal device including a memory, a processor, and a program stored on the memory and executable on the processor, and is characterized in that the fifth aspect to the fifth aspect are implemented when the processor executes the program. A method for transmitting terminal capabilities in any one of the six implementation manners.

A thirteenth aspect of the present application provides a chip system, which includes: applied to an access network device, the chip system includes at least one processor and an interface circuit, and the interface circuit and the at least one processor are interconnected through a line; the processor executes the first aspect Operation of the access network device in the method of any one of the ninth implementation manners of the first aspect.

A fourteenth aspect of the present application provides a chip system, which is characterized in that: the chip system is applied to a core network device, the chip system includes at least one processor and an interface circuit, and the interface circuit and the at least one processor are interconnected through a line; the processor executes The operation of the core network device in the method of any one of the third aspect to the fifth implementation manner of the third aspect.

A fifteenth aspect of the present application provides a chip system, which is characterized in that the chip system is applied to a terminal device, and the chip system includes at least one processor and an interface circuit. The interface circuit and the at least one processor are interconnected through a line, and the processor executes the first Operation of the terminal device in the method of any one of the fifth implementation manner of the fifth aspect to the fifth implementation manner of the fifth aspect.

A sixteenth aspect of the present application provides a computer-readable storage medium, which is characterized in that it is applied to an access network device, and the computer-readable storage medium has instructions stored therein, which when run on a computer makes the computer the first aspect The method for transmitting terminal capabilities in any one of the ninth implementation manners of the first aspect.

A seventeenth aspect of the present application provides a computer-readable storage medium, which is characterized in that the computer-readable storage medium has instructions stored in the computer-readable storage medium, and when the computer-readable storage medium runs instructions on the computer, the computer executes the third aspect. The method for transmitting terminal capabilities in any one of the fifth implementation manners to the third aspect.

The eighteenth aspect of the present application provides a computer-readable storage medium, which is characterized in that the computer-readable storage medium has instructions stored in the computer-readable storage medium, and when the computer-readable storage medium runs instructions on the computer, the computer executes the fifth aspect to A method for transmitting terminal capabilities in any one of the sixth implementation manners in the fifth aspect.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to explain the technical solutions of the embodiments of the present application more clearly, the drawings used in the description of the embodiments and the prior art are briefly introduced below. Obviously, the drawings in the following description are just some implementations of the application. For example, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without paying creative labor.

FIG. 1 is a schematic diagram of signaling interaction of an RRC connection process and a context establishment process provided by this application;

FIG. 2 is a schematic diagram of signaling interaction of an embodiment of a terminal capability transmission method provided by this application; FIG.

FIG. 3 is a schematic diagram of signaling interaction in another embodiment of a terminal capability transmission method provided by this application; FIG.

4 is a schematic diagram of signaling interaction of another embodiment of a method for transmitting a terminal capability provided by this application;

FIG. 5 is a schematic diagram of signaling interaction in still another embodiment of a terminal capability transmission method provided by this application;

6 is a schematic structural diagram of an embodiment of an access network device provided by this application;

7 is a schematic structural diagram of an embodiment of a core network device provided by this application;

8 is a schematic structural diagram of an embodiment of a terminal device provided by this application;

FIG. 9 is a schematic structural diagram of still another embodiment of an access network device provided by this application;

10 is a schematic structural diagram of an embodiment of a chip system provided by this application;

FIG. 11 is a schematic structural diagram of an embodiment of a communication device provided by this application; FIG.

FIG. 12 is a schematic structural diagram of another embodiment of a communication device provided by this application;

FIG. 13 is a schematic structural diagram of another embodiment of a communication device according to the present application.

detailed description

The terms "uplink" and "downlink" appearing in this application are used to describe the direction of data / information transmission in some scenarios, for example, the "uplink" direction is the direction in which the data / information is transmitted from the terminal device to the network side, " The "downlink" direction is the direction in which the data / information is transmitted from the network-side device to the terminal device. The "uplink" and "downlink" are only used to describe the direction, and the specific device for the start / stop of the data / information transmission is not limited.

The term "and / or" appearing in this application can be an association relationship describing an associated object, which means that there can be three kinds of relationships, for example, A and / or B can mean: A exists alone, and A and B exist simultaneously. There are three cases of B alone. In addition, the character "/" in this application generally indicates that the related objects before and after are an "or" relationship.

Various objects such as various messages / information / equipment / network elements / systems / devices / actions / operations / processes / concepts may be named in this application, but these specific names do not constitute Limitation, the assigned name can be changed with factors such as scene, context, or usage habits. The understanding of the technical meaning of related objects should be mainly determined by the functions and technical effects embodied / executed in the technical solution.

The terms "first" and "second" in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way are interchangeable where appropriate, so that the embodiments described herein can be implemented in an order other than what is illustrated or described herein. Furthermore, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or device that includes a series of steps or modules need not be limited to those explicitly listed Those steps or modules may instead include other steps or modules not explicitly listed or inherent to these processes, methods, products or equipment. The naming or numbering of steps in this application does not mean that the steps in the method flow must be executed in the time / logical order indicated by the naming or numbering. The named or numbered process steps can be implemented according to the Technical purposes change the execution order, as long as the same or similar technical effects can be achieved. The division of modules appearing in this application is a logical division. In actual applications, there can be other divisions. For example, multiple modules can be combined or integrated in another system, or some features can be ignored. , Or not executed. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be through some interfaces. The indirect coupling or communication connection between the modules may be electrical or other similar forms. There are no restrictions in the application. In addition, the modules or sub-modules described as separate components may or may not be physically separated, may or may not be physical modules, or may be distributed into multiple circuit modules, and some or all of them may be selected according to actual needs. Module to achieve the purpose of the solution of this application.

This application is applied to a wireless communication network, especially in a scenario where the wireless communication network needs to allocate network resources for the terminal device according to its capabilities. The wireless communication network may be a second-generation network communication technology (2G network), and a third-generation network communication. Technology (3G network), fourth generation network communication technology (4G network), or fifth generation network communication technology (5G network). The terminal devices in the embodiments of the present application include fixed terminal devices such as personal computers (PCs), IP telephones and fax machines, and mobile terminal devices such as mobile phones and tablet computers. The terminal device is connected to the access network device. The access network device receives data from the terminal device and sends it to the core network device. The core network device provides network resources and network services for the terminal device. In different wireless communication networks, the access network equipment corresponds to different devices. For example, the access network equipment in a 2G network corresponds to a base station and a base station controller (BSC), and the access network equipment in a 3G network corresponds to a base station ( (node nodeB) and radio network controller (RNC), the access network equipment corresponding to the base station (evolved node B, eNB) in the 4G network, and the access network equipment corresponding to the 5G base station (gNB) or gNB logic in the 5G network Central unit (CU) or distributed unit (DU) after system separation. In different wireless communication networks, the core network device corresponds to different devices. For example, in a 4G network, the core network device corresponds to a mobility management network node (MME) and a serving gateway (S-GW). In the 3G network, the corresponding services of the core network equipment are general packet radio service (GPRS) support node (serving GPRS support node (SGSN) and gateway GPRS support node (gateway packet service) (GGSN). The system in the 5G network In the architecture, the included network element devices have access and mobility management functions (AMF) and session management functions (SMF). AMF and SMF are network element devices on the control plane of the 5G network. The AMF is responsible for the access and mobility management of the terminal equipment, and the SMF is responsible for the session management. Multiple can be configured. Therefore, the network element equipment corresponding to the core network equipment in the 5G network in this application is AMF.

For the convenience of description, a 5G network is used as an example in the following content of this application. The terminal equipment is user equipment (UE), the access network equipment is gNB, and the core network equipment is AMF. It should be noted that although the 5G network is used as an example in this application, in practical applications, the wireless communication network is not limited to a 5G network. If it is another wireless communication network, the access network device and the core network device Replace the corresponding device accordingly.

If the UE needs to access the 5G network and perform data and signaling interaction with the 5G network, it needs to complete the RRC connection with the gNB and the context establishment process with the AMF. The interaction diagram shown in Figure 1 is specific. Detailed instructions in one step:

In the first step, the UE performs a cell search to obtain system information sent by the gNB on a broadcast channel (BCH) and completes downlink synchronization. The system information includes a master system information block (master information block (MIB)) and multiple system information blocks ( system information block (SIB), MIB contains basic information for downlink synchronization. There are more than ten types of existing SIBs, and each type of SIB has different uses. Among them, SIB1 contains basic cell information and cells. Selection information, etc. Therefore, the UE can complete cell selection and downlink synchronization according to SIB1 and MIB;

The second step is that the UE completes the random access (RA) process with the gNB according to SIB1. SIB1 includes the preamble index and the physical random access channel (PRACH) sent by the eNB. Resource related information. If the preamble index is not 0, it can be considered that the gNB has assigned a preamble to the UE. At this time, the UE performs non-competitive RA; however, if the UE performs RA for the first time, the gNB does not specify a preamble index for the UE. The UE needs to perform competitive RA. The competitive RA process is as follows: the UE sends a random access preamble to the gNB, completes the corresponding configuration after the gNB receives the random access preamble, and then sends a random access response to the UE. After the UE receives the random access response, Competitive RA;

Step 3: After completing the RA process, the UE generates an RRC connection setup request message (RRC setup request) and sends an RRC setup request to the gNB through a common control channel (CCCH);

Step 4. After the gNB receives the RRC setup request, if the radio resource management module (radio resource management (RRM)) accepts the RRC connection request from the UE, the gNB generates and sends an RRC connection setup message (RRC setup) to the UE;

Step 5: The UE determines that gNB allows RRC connection establishment according to the RRC setup. Then, the UE generates and sends an RRC connection setup complete message (RRC setup complete) to the gNB.

Step 6. After receiving the RRC setup complete, the gNB determines that the RRC connection with the UE is established. The gNB sends an initial UE message to the AMF. The initial UE message includes the first non-received message after the RRC connection is established. Non-access stratum (NAS) message, the first NAS message includes an attach request message, and the attach request includes the UE's international mobile equipment identity (IMEI);

Step 7. When communication between the UE and the AMF is required, context establishment is required. Context establishment refers to the establishment of a context session for information transmission between functional entities. The process of establishing a context session is the process of establishing a bearer, including Signaling bearer and data bearer. Signaling interaction can be performed after the signaling bearer is established. Data packets can be sent / received after the data bearer is established. The context establishment is initiated by the AMF. The AMF sends the initial UE context establishment request message to the gNB (initial UE context setup request), initial UE context setup request includes attach accept message;

Step 8. After receiving the initial UE context and setup request, the gNB allocates access layer resources for the UE, sends configuration information to the UE, and receives a configuration response message from the UE to complete the UE's access layer resource configuration. The gNB receives After the configuration response message of the UE, the configuration result is sent to the AMF as an initial UE context establishment response message (initial UE context setup response), thereby completing the context establishment of the UE.

In combination with the RRC connection process and the context establishment process in the 5G network scenario described above, the capability transmission of the terminal device is combined with the context establishment process. The method for transmitting the terminal capability of the present application will be described in detail through an embodiment below.

Referring to FIG. 2, an embodiment of the present application provides a terminal capability transmission method, including:

201. An access network device establishes an RRC connection with a terminal device.

In this embodiment, the application scenario is described by using a 5G network as an example. The access network device is gNB, the terminal device is UE, and the UE is a mobile phone. Each UE has a unique IMEI, and the core network device is AMF. It should be noted that, in practical applications, the wireless communication network is not limited to a 5G network. In the 5G network scenario, the process of establishing an RRC connection between the gNB and the UE is as described in the first step to the fifth step in FIG. 1 above. In the fifth step, the gNB receives the RRC connection establishment completion message sent by the UE ( After RRC setup is complete, the RRC connection has been completed between the eNB and the UE.

202. The core network device generates a context establishment message of the terminal device.

In this embodiment, the content described in the sixth step in FIG. 1 is a common processing method of the current communication network. Before the gNB establishes a context with the UE, the gNB must send an initial UE message to the AMF. To achieve communication between the UE and the AMF, context establishment is required. Context establishment refers to the establishment of a context session for information transmission between the AMF and the UE. The establishment process of the context session is the process of establishing a bearer, including the signaling bearer. With the data bearer, signaling interaction can be performed after the signaling bearer is established, and data packets can be sent / received after the data bearer is established. The context establishment is initiated by the AMF, then the AMF generates the context establishment message of the UE, and the context establishment message here is actually the context setup request message of the initial UE in the seventh step in FIG. 1 (initial UE context setup request). Network devices such as gNB and AMF need to know the capabilities of the UE in order to better allocate network resources to the UE. The capabilities of the UE are implemented by its hardware or software version. Capabilities can specifically refer to the access of the UE to the wireless communication network. For example, if the UE supports long-term evolution (LTE) network connection, then the UE has LTE capability, and the UE supports 5G New Radio (NR) network, then the UE has NR capability, and a UE's capability can It is a collection of multiple capabilities that the UE has. If the AMF stores the capability information of the UE, the AMF needs to send the capability information to the gNB so that the gNB also knows the capabilities of the UE, so that the gNB and the UE can communicate. In order to save the AMF, the capability information is sent separately. The waste of network resources caused by gNB can be added to the capability information field in the initial UE context setup request to carry the capability information; if the capability information is not stored in the AMF, the capability information field in the initial UE context setup request can be set to Empty, or set to the content of the field indicating that the AMF does not have the capability information of the UE, or the initial UE context and setup request carries information indicating that the gNB obtains capabilities from the UE.

203. The core network device sends a context establishment message to the access network device.

In this embodiment, the AMF sends an initial UE context setup request to the gNB connected to the UE after generating an initial UE context setup request according to the storage condition of the UE's capability information.

204. The access network device determines whether to request the capability from the terminal device according to the context establishment message.

In this embodiment, after receiving the initial UE context setup request, the gNB parses the part of the capability information field in the initial UE context setup request. If the capability information field is obtained by parsing the capability information field, the gNB already has the capability information based on the capability information. The capability of the UE is determined, and it is determined that the capability does not need to be requested from the UE; if the content obtained from the analysis capability information field is empty, or the content obtained from the analysis capability information field indicates that the AMF does not have the capability information of the UE, or from the initial UE context setup If information indicating that the gNB obtains the capability from the UE is obtained in the request, then the gNB determines that the capability needs to be requested from the UE, and step 205 is performed.

205. The access network device sends the capability request information to the terminal device.

In this embodiment, according to the description in step 204 above, when the gNB determines that it needs to request a capability from the UE, the gNB sends the capability request information to the UE, and the type of the capability request information may also be a message, which is not specifically limited.

206. The terminal device sends the capability feedback information to the access network device according to the capability request information.

In this embodiment, after receiving the capability request information, the UE sends the capability it has to the gNB through the capability feedback information according to the capability request information, so that the gNB learns the capability of the UE. It should be noted that after the gNB learns the capabilities of the UE, it notifies the AMF of the capabilities of the UE. After gNB and AMF allocate network resources to the UE based on the capabilities, the gNB can store the capability information of the UE's capabilities or discard them. Capability information, not specifically limited.

In the embodiment of the present application, after the access network device establishes an RRC connection with the terminal device, it determines whether to request the capability from the terminal device through the context establishment message sent by the core network device. If the access network device determines that the capability needs to be requested from the terminal device, then The access network device sends the capability request information to the terminal device, and the access network device receives the capability feedback information sent by the terminal device according to the capability request information, thereby knowing the capability of the terminal device, only when the core network device does not know the capability of the terminal device. Only when the access network device obtains the capability from the terminal device, the core network device can inform the access network device through the context establishment message when the core network device has the capability of the terminal device, thereby saving the network resource consumption of the transmission capacity. .

In the embodiment shown in FIG. 2 above, the capability of the UE is described by capability information. The capability information of the UE includes various capabilities related to gNB, and may include: packet data convergence protocol (PDCP) capability (For example, supporting a compression header type, etc.), transmission channel capabilities (for example, maximum transmission channel and reception bits, etc.), measurement capabilities (for example, multi-carrier frequency measurement, etc.), CA capabilities, and the like. Among them, CA has the largest capacity. For example, the description of CA capability is in the form of carrier combination and band combination. For each band combination, it includes the number of supported carriers, carrier bandwidth, SCS, and MIMO layers. If the capability of the UE is identified by capability ( identity (ID) information to define, can simplify the description of capabilities. For example, UEs with the same model can use the same capability identifier. In this way, as long as network devices such as gNB and AMF store the capability identifiers of some types of UEs, the UE can report only the capability identifier of the UE rather than reporting specific capabilities. Identifies the corresponding capability information. The capability identifier is used to represent specific capability information, and may also be referred to as a capability index, a capability model, or a capability type, which is not limited in the present invention.

According to the above description, the capability of the terminal device can be represented by the capability identification information. Specifically, if the terminal device has multiple capabilities, the capability identification information may represent a set of capabilities supported by the terminal device, or the capability identification information may be Is an ID list. The ID list includes at least two IDs. One ID corresponds to a subset of the capability set supported by the terminal device. For example, the capability set supported by the terminal device includes capability 1, capability 2, and capability 3. Capability identifier. The information can be (ID1, ID2, ID3), where ID1 corresponds to capability 1, ID2 corresponds to capability 2, ID3 corresponds to capability 3, or the capability identification information can be (ID4, ID5), where ID4 corresponds to a subset of the capability set , The subset includes capability 1 and capability 2, ID5 corresponds to capability 3. For example, for a terminal device, all the LTE capabilities supported by the terminal device can be mapped to an ID1, the capabilities supported by all NRs of the terminal device can be mapped to ID2, and all LTE-NR combined capabilities can be mapped to ID3. All capabilities supported by the end device.

For the specific implementation of the above capability identification information, taking a terminal device as a mobile phone as an example, each mobile phone currently has a unique IMEI. The composition of IMEI includes the following parts:

The first part is the type allocation code (TAC), which consists of 8 digits (early 6 digits). It is a code that distinguishes the brand and model of the mobile phone. It is made by the Global System for Mobile Communications (GSMA). ) And its authorized agencies, the first two digits of the TAC code are the reporting agency identifier (reporting body identifier), which is the code that authorizes the IMEI code distribution agency. For example, 01 is the American Wireless Communications and Internet Association (CTIA), 35 is the British Communications Accreditation Board (British Approvals Board of Telecommunications, BABT), 86 is the China Telecommunications Terminal Industry Association (TAF);

The second part is the final assembly code (FAC), which consists of 2 digits, and only existed when the early TAC code was 6 digits, so the TAC and FAC codes combined totaled 8 digits. FAC code is used to distinguish the production place code within the manufacturer;

The third part is the serial number (SNR), which consists of 6 digits starting from the 9th digit. The SNR is the production serial number that distinguishes each mobile phone;

The fourth part is a check code (CD), which is calculated from the first 14 digits by the modulo 10 algorithm (luhn algorithm);

The fifth part is the software version number (SVN), which distinguishes between different software versions of the same model of mobile phone when they leave the factory, and only exists in some models of some brands.

According to the composition of the IMEI, the capability identification information may consist of TAC plus part of FAC, SNR, or SVN, or the capability identification information may consist of TAC plus an internal vendor index assigned by the terminal manufacturer, or the capability identification information It may also be assigned by the network device (for example, AMF) to the terminal device after the terminal device accesses the network. It should be noted that the ability identification information obtained from the content of IMEI is convenient to use the unique information of each terminal device. In actual applications, the situation where the ability identification information generation mechanism can be agreed between the terminal device and the network device Down to the capabilities of the terminal equipment.

After the terminal equipment, access network equipment, and core network equipment use the capability identification information mechanism to define the capabilities of the terminal equipment through the capability identification information, the terminal equipment may be connected to the access network equipment for the first time, or the terminal equipment may It is to reconnect to the access network device. For the access network device, it is necessary to know whether the terminal device has the capability identification information mechanism. Therefore, the terminal device needs to inform the access network device of its capability identification through the capability indication information. The information reporting mechanism, that is, the terminal device can indicate the capabilities it supports through capability identification information, and the specific methods can be the following two:

(1) The capability indication information is capability identification information. The access network device sends an indication to the terminal device that it is allowed to send the capability indication information. If the terminal device supports the capability identification information reporting mechanism, the terminal device can send the capability indication information according to the indication. Sending capability identification information to the access network device;

(2) The capability indication information is capability identification support information, and the terminal device actively sends the capability identification support information to the access network device, so as to inform the access network device that the terminal device reports the capability identification information.

The following (a) is described in detail through the embodiment of FIG. 3, and the above (b) is described in detail through the embodiment of FIG. 4.

Referring to FIG. 3, an embodiment of the present application provides a terminal capability transmission method, including:

301. An access network device sends an instruction to allow sending capability indication information to a terminal device through a system broadcast message or an RRC connection establishment message;

In this embodiment, the gNB sends the indication of sending the capability indication information to the UE in the following two ways:

(1) Sending through a system broadcast message, specifically: before the UE performs the RA process, the UE needs to obtain the gNB system broadcast message through the BCH. The system broadcast message includes the MIB and multiple SIBs, and then the eNB can send the MIB and Before multiple SIBs, carry an indication that the capability indication information is allowed to be sent in the MIB, or one of the multiple SIBs;

(2) The message is sent through the RRC connection establishment message. Specifically, the UE generates an RRC setup request and sends an RRC setup request to the gNB through the CCCH to perform an RRC connection with the gNB. If the gNB accepts the RRC connection request from the UE, it needs to send an RRC setup To the UE, the RRC setup can be sent to the UE with an indication of the capability to send the capability indication information.

The benefit brought by the above (1) and (2) is that it can control whether the terminal device carries capability identification information in the RRC connection establishment completion message. If the network equipment such as gNB and AMF does not support the capability identification information mechanism or the terminal equipment does not need to report the capability identification information, the system can no longer broadcast the system or the RRC connection establishment message carries the indication that the capability indication is allowed to be sent. At this time, the terminal equipment The capability identification information is not carried in the RRC connection establishment completion message, which reduces unnecessary overhead.

302. The terminal device sends the capability identification information to the access network device through an RRC connection establishment completion message.

In this embodiment, after the UE receives the indication that the capability indication information is allowed to be transmitted through the system broadcast message, if the UE receives RRC setup, indicating that the gNB allows RRC connection establishment, then the UE sends the RRC setup to complete to the gNB, and the setup is complete in RRC The capability identification information is carried in the RRC; or, after receiving the indication that the capability indication information is allowed to be sent through the RRC setup, the UE carries the capability identification information in the RRC setup complete and sends the RRC setup complete to the gNB. Specifically, the capability identification information can be used as a cell in RRC setup and complete, and can also be carried in the NAS field in RRC setup. For example, the DedicatedInfoNAS field is added to the NAS field in RRC setupup. The UEcapability ID in the DedicatedInfoNAS field ( list) indicates the capability identification information of the UE's capabilities. The capability identification information can be in the form of a byte string (OCTET) or a sequence of numbers (SEQUENCE {}). If the capability identification information includes two identifiers ID1 and ID2, ID1 corresponds to NR capability, ID2 corresponds to LTE capability, then it needs to be clearly indicated by the field (UE Capability ID 1for NR, UE Capability ID 2for LTE).

303. The access network device receives the capability identification information sent by the terminal device through an RRC connection establishment completion message.

In this embodiment, after the gNB receives the RRC connection establishment complete message, according to the description of step 302 above, the capability identification information is obtained by analyzing the RRC setup complete complete cell or NAS field.

304. The access network device sends the capability identification information to the core network device through an initial terminal device message.

In this embodiment, after the gNB receives the RRC setup complete, it determines that the RRC connection with the UE is established and obtains the capability identification information. According to the sixth step shown in FIG. 1, after the gNB determines that the RRC connection with the UE is established, The initial UE message is sent to the AMF. In order to reduce the consumption of network resources by sending the capability identification information to the AMF separately, the gNB can carry the capability identification information in the initial UE message when sending the initial UE message.

Optionally, the capability of the UE may be known to the gNB. For example, the capability information corresponding to the capability identification information is already stored in the gNB, then the core network device is no longer required to send capability information, and the capability is no longer required to be requested from the UE. Therefore, before sending the capability identification information to the AMF, the gNB can determine whether to store the capability information corresponding to the capability identification information. For different judgment results, there are the following two schemes:

(304-1) When the gNB detects the capability information corresponding to the stored capability identification information, the gNB generates capability storage indication information for indicating the capability information corresponding to the stored capability identification information, and initializes the capability identifier through the initial UE message. Information and capability storage instructions are sent to the AMF;

(304-2) When the gNB detects that it does not store the capability information corresponding to the capability identification information, the gNB sends the capability identification information to the AMF through the initial UE message.

305. The core network device generates a terminal device context establishment message according to the initial terminal device message.

In this embodiment, after the AMF receives the initial UE message, since the initial UE message carries the capability identification information, the AMF determines the UE according to the initial UE message to obtain the capability identification information, and in order to achieve communication between the UE and the AMF , The context needs to be established first. The context establishment is initiated by the AMF. When the AMF generates the initial UE context and the setup request, it needs to consider whether the capability information corresponding to the capability identification information exists. Then the AMF determines whether to store the capability information corresponding to the capability identification information. Different judgment results have the following two schemes:

(305-1) When the AMF has stored the capability information corresponding to the capability identification information, the AMF generates initial UE context and setup request according to the capability identification information and corresponding capability information, so that the gNB can obtain the UE from the initial UE context setup request Capability capability information, no need to request capability from UE;

(305-2) When the AMF does not store the capability information corresponding to the capability identification information, the AMF generates indication information of the capability non-existence corresponding to the capability identification information, and generates an initial UE context setup request based on the capability identification information and the capability non-existence indication information. , So that the gNB can determine the capability information corresponding to the capability identification information that is not stored in the AMF according to the indication information that the capability does not exist, and needs to request the capability from the UE.

Optionally, before sending the capability identification information to the AMF, the gNB detects that the capability information corresponding to the stored capability identification information is stored, as in the (304-1) solution in step 304, the initial UE message includes the capability identification information. And capability storage indication information. The AMF determines the capability information corresponding to the capability identification information stored in the gNB according to the capability storage indication information. Then the AMF determines whether to store the capability information corresponding to the capability identification information. For different judgment results, there are two schemes as follows:

(305-3) When the AMF has stored the capability information corresponding to the capability identification information, since the AMF has determined that the gNB has stored the capability information corresponding to the capability identification information, the generated initial UE context does not need to carry the capability identification Information and corresponding capability information;

(305-4) When the AMF does not store the capability information corresponding to the capability identification information, the AMF generates indication information of the capability non-existence corresponding to the capability identification information, and generates an initial UE context and setup request based on the capability identification information and the capability non-existence indication information. , So that the gNB determines the capability information corresponding to the capability identification information that is not stored in the AMF according to the indication information that the capability does not exist.

306. The core network device sends the context establishment message to the access network device.

In this embodiment, in combination with (305-1), (305-2), (305-3), and (305-4) in step 305, the initial UE context sent to the gNB by the MME may include capability identification information and The corresponding capability information either includes capability identification information and does not include capability information corresponding to the capability identification information or includes indication information that the capability does not exist, or does not include capability identification information and corresponding capability information.

307. The access network device determines whether to request the capability from the terminal device according to the capability information or the context establishment message corresponding to the stored capability identification information.

In this embodiment, if the gNB has stored the capability information corresponding to the capability identification information, it is determined that it is not necessary to request the capability from the UE. For (305-4), if the gNB determines from the initial UE context and setup request that the AMF does not store UE capability information, the gNB may send the capability information of the UE to the AMF.

If the gNB does not store the capability information corresponding to the capability identification information, after receiving the initial UE context and the setup request from the gNB, according to the initial UE context setup setup request described in step 306, if the initial UE context includes the capability identification information and the corresponding capability Information, the gNB determines that it is not necessary to request the capability from the UE; if the initial UE context does not include the capability identification information, but does not include the capability information corresponding to the capability identification information or includes the capability non-existence indication information, the gNB determines the capability non-existence indication information. Can know the capability information corresponding to the capability identification information that is not stored in the AMF, and determine that the capability information corresponding to the capability identification information needs to be requested from the UE; if the initial UE context does not include the capability identification information and the corresponding capability information, and the gNB does not store the capability information When determining the capability information corresponding to the UE, it is determined that the UE needs to request the capability identification information of the capability supported by the UE.

308. The access network device sends the capability request information to the terminal device.

In this embodiment, according to the description of step 307, if the initial UE context request only includes capability identification information, and does not include capability information corresponding to the capability identification information or includes indication information that the capability does not exist, the gNB determines that the UE needs to request the capability identification Capability information corresponding to the information, then the capability request information sent by the gNB to the UE is used to instruct the UE to send capability identification information and corresponding capability information. It should be noted that when the capability identification information includes the specified capability identification, the capability request The information is used to instruct the UE to send the capability information corresponding to the specified capability identifier. If the initial UE context does not include the capability identifier information and the corresponding capability information, it indicates that the MME does not store the capability information and capability identifier information of the UE. GNB determines that it needs to send The UE requests the capability identification information of the UE to support the capability to reacquire the capability of the UE using the capability identification information, and then the capability request information is used to instruct the UE to send the capability identification information.

309. The terminal device sends the capability feedback information to the access network device according to the capability request information.

In this embodiment, according to the description in step 308, the capability request information is used to instruct the UE to send capability identification information, or the capability request information is used to instruct the UE to send capability identification information and corresponding capability information, or the capability request information is used to Instruct the UE to send the capability information corresponding to the specified capability identifier, then the terminal device sends the capability feedback information to the access network device according to the capability request information, and the capability feedback information includes the capability identification information, or the capability feedback information includes the capability identification information and the corresponding capability. The information, or the capability feedback information includes capability information corresponding to the specified capability identifier.

In the embodiment of the present application, the access network device sends an indication that the capability indication information is allowed to be sent to the terminal device through a system broadcast message or an RRC connection establishment message, so that the terminal device carries the capability identification information in the RRC connection establishment completion message to access The network device sends the capability identification information to the core network device through the initial terminal device message. The core network device sends a context establishment message to the access network device according to the capability information corresponding to the capability identification information. The access network device obtains the capability according to the context establishment message. The capability information corresponding to the identification information does not need to request the capability from the terminal device; if the capability information corresponding to the capability identification information is not obtained from the context establishment message, the capability request information needs to be sent to the terminal device, and the access network device feeds back through the terminal device Capability feedback information to get the capabilities of the terminal device. Since the capability identification information is used to indicate a capability set supported by a terminal device, or the capability identification information includes at least two capability IDs, each capability ID corresponds to a subset of the capability set supported by the terminal device. With the same capability set, the capability identification information is the same. The core network device only needs to store the capability information corresponding to the capability identification information of a terminal device, which reduces the consumption of storage resources. Moreover, the core network device corresponds to the capability identification information. When the capability information is not stored, the access network device does not need to request capabilities from all the terminal devices, and only one terminal device needs to report the capability information corresponding to the capability identification information, which reduces the network resource consumption during the capability transmission process.

Referring to FIG. 4, an embodiment of the present application provides a terminal capability transmission method, including:

401. When the terminal device establishes an RRC connection with the access network device, the terminal device sends the capability identification support information to the access network device through an RRC connection establishment complete message.

In this embodiment, when the UE receives RRC setup, indicating that the eNB allows RRC connection establishment, the UE sends RRC setup to complete to the gNB. Before that, when the UE supports the capability identification information reporting mechanism, the UE generates capability identification support information. The capability identification support information is sent to the gNB through RRC setup. In specific applications, the field of capability identification support information can be added in the form of cells in the RRC setup complete or in the RRC setup complete message structure.

402. The access network device receives the capability identification support information sent by the terminal device through an RRC connection establishment completion message.

In this embodiment, after the gNB receives the RRC connection establishment completion message, it analyzes the RRC setup complete to obtain the capability identification support information, and determines the UE to support the capability identification information reporting based on the capability identification support information.

403. The access network device sends the initial terminal device message to the core network device.

In this embodiment, after the gNB receives the RRC setup complete, it determines that the RRC connection with the UE is established. According to the sixth step shown in FIG. 1, after the gNB determines that the RRC connection with the UE is established, it needs to send the initial UE message to the AMF. .

404. The core network device generates a terminal device context establishment message according to the initial terminal device message.

In this embodiment, after the AMF receives the initial UE message, the UE is determined according to the initial UE message, and the AMF determines whether the UE ’s capability identification information and corresponding capability information are stored. When the AMF has stored the capability identification information and corresponding capability information, AMF generates initial UE context setup request based on the capability identification information and corresponding capability information. When the AMF has stored capability identification information and the capability information corresponding to the capability identification information is not stored, the AMF generates initial UE context setup setup request based on the capability identification information. ; When the AMF has stored the capability identification information and the capability information corresponding to the capability identification information is not stored, the AMF generates the indication information of the capability non-existence corresponding to the capability identification information, and generates an initial UE context based on the capability identification information and the capability non-existent indication information. setup request; when the AMF does not store the capability identification information and corresponding capability information, the MME generates an initial UE context setup request.

405. The core network device sends a context establishment message to the access network device.

In this embodiment, in conjunction with step 404, the initial UE context sent to the gNB by the AMF may include capability identification information and corresponding capability information, or may include only capability identification information, or may include capability identification information and an indication that the capability does not exist. The information, or, does not include capability identification information and corresponding capability information.

406. The access network device determines whether to request the capability from the terminal device according to the context establishment message.

In this embodiment, after the gNB receives the initial UE context setup request, since the gNB has determined that the UE supports reporting of capability identification information according to step 402, if the initial UE context configuration capability request includes capability identification information and corresponding capability information, gNB Make sure that you do not need to request the capability from the UE. If the initial UE context only includes the capability identification information, and does not include the capability information corresponding to the capability identification information or includes the capability non-existence indication information, gNB can know according to the capability non-existence indication information. The MME does not store the capability information corresponding to the capability identification information. It is determined that the capability information corresponding to the capability identification information needs to be requested from the UE. If the initial UE context does not include the capability identification information and the corresponding capability information, it is determined that the UE needs to request the UE to support the capability. Capability identification information.

407. The access network device sends the capability request information to the terminal device.

In this embodiment, according to the description of step 406, if the initial UE context request only includes the capability identification information, and does not include the capability information corresponding to the capability identification information or includes indication information that the capability does not exist, the gNB determines that it needs to request the capability identification from the UE. Capability information corresponding to the information, then the capability request information sent by the gNB to the UE is used to instruct the UE to send capability identification information and corresponding capability information. It should be noted that when the capability identification information includes the specified capability identification, the capability request The information is used to instruct the UE to send the capability information corresponding to the specified capability identifier. If the initial UE context request does not include the capability identifier information and the corresponding capability information, the gNB determines that the UE needs to request the capability identifier information of the capability supported by the UE, then the capability request The information is used to instruct the UE to send capability identification information.

408. The terminal device sends the capability feedback information to the access network device according to the capability request information.

In this embodiment, according to the description in step 407, the capability request information is used to instruct the UE to send capability identification information, or the capability request information is used to instruct the UE to send capability identification information and corresponding capability information, or the capability request information is used to Instruct the UE to send the capability information corresponding to the specified capability identifier, then the terminal device sends the capability feedback information to the access network device according to the capability request information, and the capability feedback information includes the capability identification information, or the capability feedback information includes the capability identification information and the corresponding capability. The information, or the capability feedback information includes capability information corresponding to the specified capability identifier.

It should be noted that, in this embodiment, the gNB is not the same as the embodiment shown in FIG. 3, and the check described in step 305 is performed to check whether the capability information corresponding to the capability identification information is stored. Therefore, the gNB receives the When the capability feedback information includes capability identification information, the gNB may also check whether the capability information corresponding to the capability identification information is stored first, and if not, then request the capability information corresponding to the capability identification information from the AMF or the UE.

In the embodiment of the present application, the terminal equipment carries the capability identification support information in the RRC connection establishment completion message, the access network equipment sends the initial terminal equipment message to the core network equipment, and the core network equipment generates a context establishment message according to the initial terminal equipment message, and Sent to the access network device. If the access network device obtains the capability information corresponding to the capability identification information of the terminal device according to the context establishment message, it does not need to request the capability from the terminal device; if the terminal device capability is not obtained from the context establishment message The capability information corresponding to the identification information needs to send capability request information to the terminal device, and the access network device obtains the capability of the terminal device through the capability feedback information fed back by the terminal device. Since the capability identification information is used to indicate a capability set supported by a terminal device, or the capability identification information includes at least two capability IDs, each capability ID corresponds to a subset of the capability set supported by the terminal device. With the same capability set, the capability identification information is the same. The core network device only needs to store the capability information corresponding to the capability identification information of a terminal device, which reduces the consumption of storage resources. Moreover, the core network device corresponds to the capability identification information. When the capability information is not stored, the access network device does not need to request capabilities from all the terminal devices, and only one terminal device needs to report the capability information corresponding to the capability identification information, which reduces the network resource consumption during the capability transmission process.

In the above embodiment, after the access network device has acquired the capabilities of the terminal device, if the terminal device needs to switch to a different access network device, for example, the user holds the terminal device out of the communication coverage area of the access network device and enters the target Within the communication coverage of the access network equipment, then handover needs to be performed. When the terminal equipment is switched between different access network equipment, the target access network equipment needs to know the capabilities of the terminal equipment in order to provide network services. Then each time the terminal device is switched, the access network device needs to send the capability information of the terminal device to the target access network device.

The following describes in detail the capability transmission when a terminal device is switched between different access network devices through an embodiment. Referring to FIG. 5, an embodiment of the present application provides a method for transmitting terminal capabilities, including:

501. The access network device sends the capability information corresponding to the capability identification information of the terminal device to the target access network device.

In this embodiment, in a current wireless communication network, each access network device is connected to each other through an X2 interface to form a mesh network. The X2 interface supports direct transmission of data and signaling. When an X2 interface is established between the gNB and the target gNB, the gNB may send the UE's capability identification information and corresponding capability information to the target gNB. For example, when an X2 interface is initially established between gNB1 and gNB2, gNB1 sends an interface setup request message (X2setup request) to gNB2, and gNB2 sends an interface setup response message (X2setup response) to gNB1. Then in X2setup request and X2setup response, you can Pass the capability identification information of the UE that needs to be transmitted between gNB1 and gNB2, or the capability identification information of the UE that needs to be transmitted, and the corresponding capability information to the peer end.

502. The access network device sends a handover instruction to the target access network device.

In this embodiment, when the UE is handed over by the gNB and the target gNB, the gNB sends a handover instruction (handover request) to the target gNB. Since the target gNB has obtained the capability information corresponding to the capability identification information of the UE in step 501, Then only the capability identification information of the UE needs to be carried in the handover request, and the target gNB can determine the capability of the UE according to the capability identification information and the capability information corresponding to the capability identification information obtained in step 501.

503. The target access network device determines the capability of the terminal device according to the handover instruction.

In this embodiment, after the target gNB receives the handover request, the capability of the UE can be determined according to the capability identification information of the UE carried by the handover request and the capability information corresponding to the capability identification information. It should be noted that if the capability information corresponding to the capability identification information is not successfully transmitted in step 501, or the target gNB has lost the capability information corresponding to the capability identification information, the target gNB needs to request the capability from the AMF or gNB according to the capability identification information.

In the embodiment of the present application, before the access network device and the target access network device switch the terminal device, the capability information corresponding to the capability identification information of the terminal device has been transferred through the X2 interface. Only the capability identification information of the terminal device needs to be carried in the handover instruction, and the target access network device can determine the capability information corresponding to the capability identification information according to the capability identification information, thereby determining the capability of the terminal device. Compared with the current handover, only the capability identification information needs to be transmitted, and no capability information needs to be transmitted, which significantly reduces the network resource consumption during the handover of the terminal device between the access network device and the target access network device.

The foregoing embodiments describe the terminal capability transmission method. The following describes the terminal equipment, the access network equipment, and the core network equipment separately through the embodiments.

Referring to FIG. 6, an embodiment of the present application provides an access network device, including:

An RRC module 601, configured to establish an RRC connection with a terminal device;

A receiving module 602, configured to receive a context establishment message of a terminal device sent by a core network device;

A processing module 603, configured to determine whether to request a capability from the terminal device according to the context establishment message received by the receiving module;

The sending module 604 is configured to send the capability request information to the terminal device when the processing module 603 determines to request the capability from the terminal device according to the context establishment message.

In the embodiment of the present application, after the RRC module 601 establishes an RRC connection with the terminal device, the processing module 603 determines whether to request the capability from the terminal device through the context establishment message sent by the core network device. If the processing module 603 determines that the terminal device needs to request the capability, Then the sending module 604 sends the capability request information to the terminal device, so that the receiving module 602 receives the capability feedback information sent by the terminal device according to the capability request information, thereby knowing the capability of the terminal device, only when the core network device does not know the capability of the terminal device. The sending module 604 only needs to obtain the capabilities from the terminal device. If the capabilities of the terminal device are known, the core network device can send the context establishment message to the receiving module 602, thereby saving the network resource consumption of the transmission capability.

Optionally, in some embodiments of the present application, the receiving module 602 is further configured to receive the capability indication information sent by the terminal device through an RRC connection establishment completion message.

In the embodiment of the present application, if the capability of the terminal device is described by capability information, for example, the description of the CA capability is in the form of carrier combination and band combination. For each band combination, the number of supported carriers, carrier bandwidth, Capabilities such as SCS and MIMO layers, and if the CA capability is defined by capability identification information, the description of capabilities can be simplified. Therefore, the capability of the terminal device can be represented by the capability identification information. After the capability of the terminal device is defined by the capability identification information, since the terminal device may be connected for the first time, or the terminal device may be reconnected, for the processing module 603, it is necessary to know whether the terminal device has the capability identification information. Mechanism, the terminal device needs to inform the processing module 603 of its capability identification information reporting mechanism through the capability indication information. Specifically, the RRC module 601 can carry the capability indication information to the RRC connection establishment completion message during the RRC connection establishment process with the terminal device. In order to save network resources, the receiving module 602 receives the capability indication information sent by the terminal device through an RRC connection establishment completion message.

Optionally, in some embodiments of the present application, the capability indication information is capability identification information,

The sending module 604 is further configured to send an instruction to allow the sending of capability indication information to the terminal device through a system broadcast message or an RRC connection establishment message, and the instruction to allow the sending of capability indication information is used to instruct the terminal device to send a capability identification message through the RRC connection establishment completion message. information.

In the embodiment of the present application, the capability indication information is specifically capability identification information. The access network device sends an indication that the capability indication information is allowed to be sent to the terminal device through a system broadcast message or an RRC connection establishment message. If the terminal device supports the capability identification information reporting mechanism, The terminal device can send the capability identification information through the RRC connection establishment completion message according to the indication of the capability sending capability information, and the receiving module 602 receives the capability instruction information sent by the terminal device through the RRC connection establishment completion message.

Optionally, in some embodiments of the present application,

The sending module 604 is further configured to send the capability identification information to the core network device through an initial terminal device message.

In the embodiment of the present application, after the receiving module 602 receives the capability indication information sent by the terminal device through the RRC connection establishment completion message, the sending module 604 sends the initial terminal device message to the core network device. In order to reduce the capability identification information to the core network device separately, For the consumption of network resources, the sending module 604 may carry the capability identification information in the initial terminal device message when sending the initial terminal device message.

Optionally, in some embodiments of the present application,

The sending module 604 is further configured to send the capability identification information and the capability storage instruction information to the core network device through the initial terminal device message when the capability information corresponding to the capability identification information is stored, and the capability storage instruction information is used to indicate the access network device. The capability information corresponding to the capability identification information has been stored;

or,

The sending module 604 is further configured to send the capability identification information to the core network device through an initial terminal device message when the capability information corresponding to the capability identification information is not stored.

In the embodiment of the present application, the processing module 603 may know the capabilities of the terminal device. Before the sending module 604 sends the capability identification information to the core network device, the processing module 603 may first determine whether to store the capability information corresponding to the capability identification information. For different judgment results, when the capability information corresponding to the stored capability identification information is detected, the sending module 604 generates capability storage instruction information for indicating the capability information corresponding to the stored capability identification information, and the initial terminal device message The capability identification information and capability storage indication information are sent to the core network device; when detecting that the capability information corresponding to the capability identification information is not stored, the sending module 604 sends the capability identification information to the core network device through an initial terminal device message. After the capability information corresponding to the capability identification information is stored, the core network device is no longer required to send capability information, and it is no longer necessary to request the capability from the terminal device, which can further reduce the consumption of network resources.

Optionally, in some embodiments of the present application, the capability indication information is capability identification support information,

The processing module 603 is further configured to determine, according to the capability identification support information, that the terminal device supports the capability identification information and report it.

In the embodiment of the present application, the capability indication information is specifically capability identification support information. When the terminal device receives the RRC connection establishment message, if the terminal device supports the capability identification information reporting mechanism, the terminal device can pass The RRC connection establishment completion message sends the capability identification information. The receiving module 602 receives the capability identification support information sent by the terminal device through the RRC connection establishment completion message, and the processing module 603 determines that the terminal equipment supports the capability identification information to report according to the capability identification support information.

Optionally, in some embodiments of the present application,

The processing module 603 is further configured to determine not to request the capability from the terminal device when the context establishment message includes the capability identification information of the terminal device and the corresponding capability information;

or,

The processing module 603 is further configured to determine a capability request from the terminal device when the context establishment message includes the capability identification information of the terminal device and does not include the capability information corresponding to the capability identification information or includes indication information that the capability corresponding to the capability identification information does not exist. Capability information corresponding to the identification information;

or,

The processing module 603 is further configured to determine, when the context establishment message does not include the capability identification information of the terminal device and the corresponding capability information, requesting the terminal device for the capability identification information of the capability supported by the terminal device.

In the embodiment of the present application, after receiving the context establishment message by the receiving module 602, if the context establishment message includes capability identification information and corresponding capability information, the processing module 603 determines that it is not necessary to request the capability from the terminal device; Information, and does not include the capability information corresponding to the capability identification information or includes the capability non-existence indication information. Based on the capability non-existence indication information, the processing module 603 can know the capability information corresponding to the capability identification information that is not stored in the core network device, The terminal device requests the capability information corresponding to the capability identification information. If the context establishment message does not include the capability identification information and the corresponding capability information, the processing module 603 determines that the terminal device needs to request the capability identification information of the capability supported by the terminal device.

Optionally, in some embodiments of the present application, the capability request information is used to instruct the terminal device to send capability identification information, or the capability request information is used to instruct the terminal device to send capability identification information and corresponding capability information, or the capability request information It is used to instruct the terminal device to send the capability information corresponding to the specified capability identifier, and the specified capability identifier is the capability identifier in the capability identifier information.

In the embodiment of the present application, if the receiving module 602 receives the context establishment message only including the capability identification information, and does not include the capability information corresponding to the capability identification information or includes indication information that the capability does not exist, it is necessary to request the terminal device for the capability identification information corresponding to the capability identification information. Capability information, then the capability request information sent by the sending module 604 to the terminal device is used to instruct the terminal device to send capability identification information and corresponding capability information. It should be noted that when the capability identification information includes the specified capability identification, the capability The request information is used to instruct the terminal device to send the capability information corresponding to the specified capability identifier. If the receiving module 602 receives the context establishment message that does not include the capability identifier information and the corresponding capability information, the sending module 604 determines that the terminal device needs to request the terminal device for support. Capability identification information of the capability, then the capability request information is used to instruct the terminal device to send capability identification information.

Optionally, in some embodiments of the present application, the capability identification information is used to indicate a capability set supported by a terminal device, or the capability identification information includes at least two capability identifiers, and each capability identifier corresponds to a capability set supported by the terminal device. A subset of.

In the embodiment of the present application, if a terminal device has multiple capabilities, the capability identification information may indicate a capability set supported by a terminal device, or the capability identification information may be a capability identification list, and the capability identification list includes at least two capabilities. ID. A capability ID corresponds to a subset of the capability set supported by the corresponding terminal device. For example, the capability set supported by the terminal device has capability 1, capability 2, and capability 3. The capability identification information may be (ID1, ID2, ID3) Among them, ID1 corresponds to capability 1, ID2 corresponds to capability 2, ID3 corresponds to capability 3, or the capability identification information may be (ID4, ID5), where ID4 corresponds to a subset of the capability set, and the subset includes capability 1 and capability 2. ID5 corresponds to capability 3.

Optionally, in some embodiments of the present application,

The sending module 604 is further configured to send the capability information corresponding to the capability identification information of the terminal device to the target access network device when a connection interface is established with the target access network device;

The sending module 604 is further configured to send a switching instruction to the target access network device when the terminal device is switched with the target access network device, and the switching instruction includes the capability identification information of the terminal device, so that the target access network device can perform the switching instruction according to the switching instruction. Determine the capabilities of the end device.

In the embodiment of the present application, in the current wireless communication network, each access network device is connected to each other through an X2 interface to form a mesh network. The X2 interface supports direct transmission of data and signaling. The sending module 604 can connect terminal devices The capability identification information and corresponding capability information are sent to the target access network device. When the access network device performs a terminal device switching with the target access network device, the sending module 604 sends a switching instruction to the target access network device. When the X2 interface is connected, the target access network device has already obtained the capability information corresponding to the capability identification information of the terminal device sent by the sending module 604, so it is only necessary to carry the capability identification information of the terminal device in the handover instruction. The capability identification information and the capability information corresponding to the capability identification information can determine the capability of the terminal device. Compared with the current handover, only the capability identification information needs to be transmitted, but no capability information needs to be transmitted, which significantly reduces the network resource consumption during terminal device handover.

Referring to FIG. 7, an embodiment of the present application provides a core network device, including:

A processing module 701, configured to generate a context establishment message of the terminal device when the access network device establishes an RRC connection with the terminal;

The sending module 702 is configured to send the context establishment message generated by the processing module 701 to the access network device, so that the access network device determines whether to request the capability from the terminal device according to the context establishment message.

In the embodiment of the present application, after the RRC connection is established between the access network device and the terminal device, if communication between the terminal device and the access network device is to be implemented, context establishment is required first. The context establishment refers to the access network device and the A context session is established between terminal devices for information transmission. The process of establishing a context session is the process of establishing a bearer, including a signaling bearer and a data bearer. After the signaling bearer is established, signaling interaction can be performed, and the data bearer can be established. Send / receive packets. The context establishment is initiated by the access network device, then the processing module 701 generates a context establishment message of the terminal device. The network device needs to know the capabilities of the terminal device in order to better allocate network resources to the terminal device. With the capability information of the terminal device, the processing module 701 needs to send the capability information to the access network device so that the access network device also knows the capabilities of the terminal device, so that the access network device and the terminal device can perform Communication, in order to save the waste of network resources caused by the sending module 702 sending the capability information to the access network device alone, a corresponding capability information field may be added to the context establishment message to carry the capability information; if the core network device does not have the capability information stored, Then the capability information field in the context establishment message can be set to empty, or set to indicate the content of the field that the core network device does not have the capability information of the terminal device, or the context establishment message carries the instruction that the access network device obtains from the terminal device. Information on capabilities. This makes it necessary for the access network device to obtain capabilities from the terminal device when the core network device does not know the capabilities of the terminal device. When the core network device knows the capabilities of the terminal device, the core network device can inform the connection via a context establishment message. Network access equipment, thereby saving network resource consumption for transmission capabilities.

Optionally, in some embodiments of the present application, the core network device further includes: a receiving module 703;

The receiving module 703 is configured to receive an initial terminal device message sent by an access network device.

In the embodiment of the present application, before the core network device and the terminal device perform context establishment, the access network device must send an initial terminal device message to the core network device, so that the core network device can determine which context establishment is required according to the initial terminal device message. The terminal device, therefore, the receiving module 703 receives the initial terminal device message sent by the access network device.

Optionally, in some embodiments of the present application,

The processing module 701 is further configured to determine a terminal device according to the initial terminal device message;

The processing module 701 is further configured to determine whether to store capability identification information of the terminal device and corresponding capability information;

The processing module 701 is further configured to generate a context establishment message of the terminal device according to the capability identification information and the corresponding capability information when the capability identification information and the corresponding capability information have been stored;

or,

The processing module 701 is further configured to generate a context establishment message of the terminal device according to the capability identification information when the capability identification information is stored and the capability information corresponding to the capability identification information is not stored;

or,

The processing module 701 is further configured to generate, when the capability identification information is stored and the capability information corresponding to the capability identification information is not stored, indication information indicating that the capability corresponding to the capability identification information does not exist. Generating a context setup message for the terminal device;

or,

The processing module 701 is further configured to generate a context establishment message of the terminal device when the capability identification information and the corresponding capability information are not stored.

In the embodiment of the present application, after the receiving module 703 receives the initial terminal device message, the processing module 701 determines the terminal device according to the initial terminal device message, and the processing module 701 determines whether the capability identification information and corresponding capability information of the terminal device are stored. When the capability identification information and the corresponding capability information are stored, the processing module 701 generates a context establishment message according to the capability identification information and the corresponding capability information; when the capability identification information is stored and the capability information corresponding to the capability identification information is not stored, processing is performed. The module 701 generates a context establishment message according to the capability identification information. When the capability identification information is stored and the capability information corresponding to the capability identification information is not stored, the processing module 701 generates indication information that the capability corresponding to the capability identification information does not exist. If the capability identification information and corresponding capability information are not stored, the processing module 701 generates a context establishment message. By enabling the access network device to obtain the capability information corresponding to the capability identification information of the terminal device in the context establishment message, there is no need to request the capability from the terminal device; according to the context establishment message, the capability information corresponding to the capability identification information of the terminal device is not obtained. The capability request information needs to be sent to the terminal device, and the access network device obtains the capability of the terminal device through the capability feedback information fed back by the terminal device.

Optionally, in some embodiments of the present application, the initial terminal device message includes capability identification information,

The processing module 701 is further configured to determine a terminal device according to the initial terminal device message and obtain capability identification information;

The processing module 701 is further configured to, when the capability information corresponding to the capability identification information is stored, generate a context establishment message of the terminal device according to the capability identification information and the corresponding capability information;

or,

The processing module 701 is further configured to generate, when the capability information corresponding to the capability identification information is not stored, indication information indicating that the capability corresponding to the capability identification information does not exist, and generate a context establishment message of the terminal device according to the capability identification information and the indication information that the capability does not exist. .

In the embodiment of the present application, when the receiving module 703 receives the capability identification information in the initial terminal device message, the processing module 701 determines the terminal device according to the initial terminal device message, and the processing module 701 determines whether the capability identification information of the terminal device is stored and Corresponding capability information. When the capability information corresponding to the capability identification information has been stored, the processing module 701 generates a context establishment message according to the capability identification information and the corresponding capability information. When the capability information corresponding to the capability identification information is not stored, the processing module 701 generates The capability identification information corresponding to the capability non-existence indication information is generated according to the capability identification information and the capability non-existence indication information. By enabling the access network device to obtain the capability information corresponding to the capability identification information of the terminal device in the context establishment message, there is no need to request the capability from the terminal device; according to the context establishment message, the capability information corresponding to the capability identification information of the terminal device is not obtained. The capability request information needs to be sent to the terminal device, and the access network device obtains the capability of the terminal device through the capability feedback information fed back by the terminal device.

Optionally, in some embodiments of the present application, the initial terminal device message includes capability identification information and capability storage indication information, and the capability storage indication information is used to indicate that the access network device has stored capability information corresponding to the capability identification information.

The processing module 701 is further configured to determine a terminal device according to the initial terminal device message, and obtain capability identification information and capability storage indication information;

The processing module 701 is further configured to determine, according to the capability storage indication information, the capability information corresponding to the capability identification information that the access network device has stored;

The processing module 701 is further configured to generate a context creation message of the terminal device when the capability information corresponding to the capability identification information is stored, and the context establishment message does not include the capability information of the terminal device;

or,

In the embodiment of the present application, when the receiving module 703 receives the initial terminal device message including the capability identification information and the capability storage indication information, the processing module 701 determines the terminal device according to the initial terminal device message, and obtains the capability identification information and the capability storage indication information. The processing module 701 determines the capability information corresponding to the stored capability identification information of the access network device according to the capability storage indication information. The processing module 701 determines whether the capability identification information and corresponding capability information of the terminal device are stored. When the capability identification information is stored, When the corresponding capability information is available, the processing module 701 generates a context establishment message; when the capability information corresponding to the capability identification information is not stored, the processing module 701 generates a context establishment message according to the capability identification information. When the access network device has stored the capability information corresponding to the capability identification information, the capability information does not need to be carried in the context establishment message, which further reduces network resource consumption.

Referring to FIG. 8, an embodiment of the present application provides a terminal device, including:

An RRC module 801, configured to establish an RRC connection with an access network device;

A receiving module 802, configured to receive capability request information sent by an access network device;

The sending module 803 is configured to send the capability feedback information to the access network device according to the capability request information.

In the embodiment of the present application, after the RRC module 801 establishes an RRC connection with the access network device, the receiving module 802 receives the capability sent by the access network device when the access network device determines that the capability is requested through the context establishment message sent by the core network device Request information. The sending module 803 sends the capability feedback information to the access network device according to the capability request information, so that the access network device obtains the capability of the terminal device according to the capability feedback information. Only when the access network device requests the capability, the terminal device reports energy. Therefore, the network resource consumption of the transmission capacity is saved.

Optionally, in some embodiments of the present application,

The sending module 803 is further configured to send the capability indication information to the access network device through an RRC connection establishment complete message.

In the embodiment of the present application, if the capability of the terminal device is described by capability information, for example, the description of the CA capability is in the form of carrier combination and band combination. For each band combination, the number of supported carriers, carrier bandwidth, Capabilities such as SCS and MIMO layers, and if the CA capability is defined by capability identification information, the description of capabilities can be simplified. Therefore, the capability of the terminal device can be represented by the capability identification information. After the capability of the terminal device is defined by the capability identification information, since the terminal device may be connected for the first time, or the terminal device may be reconnected, for the access network device, it is necessary to know whether the terminal device has the capability identification information. Therefore, the sending module 803 needs to inform the access network device of its capability identification information reporting mechanism through the capability indication information, that is, the sending module 803 can indicate the capabilities it supports by sending the capability identification information, which can be specifically described in the RRC module. During the process of establishing the RRC connection between the 801 and the access network device, the sending module 803 carries the capability indication information in the RRC connection establishment completion message, thereby saving network resources.

The receiving module 802 is further configured to receive, through a system broadcast message or an RRC connection establishment message, an indication of sending capability indication information sent by the access network device, and the indication of sending capability indication information is used to instruct the terminal device to send a message through the RRC connection establishment completion message. Capability identification information.

In the embodiment of the present application, the capability indication information is specifically capability identification information. The access network device sends an indication that the capability indication information is allowed to be sent to the terminal device through a system broadcast message or an RRC connection establishment message. The receiving module 802 broadcasts the message or RRC through the system. The connection establishment message receives the indication of the capability sending capability indication information sent by the access network device. If the terminal equipment supports the capability identification information reporting mechanism, the sending module 803 can send the capability identity completion message through the RRC connection establishment message according to the indication of the capability sending capability indication information. information.

The sending module 803 is further configured to generate the capability identification support information when the capability identification information reporting mechanism is supported, and send the capability identification support information to the access network device through an RRC connection establishment completion message.

In the embodiment of the present application, the capability indication information is specifically capability identification support information. When the receiving module 802 receives the RRC connection establishment message, if the capability identification information reporting mechanism is supported, the sending module 803 can use the RRC connection establishment completion message to update the capability. The identification support information is sent to the access network device, and the access network device determines that the terminal device supports the capability identification information to report according to the capability identification support information.

In the embodiment of the present application, if the access network device receives the context establishment message including only the capability identification information, and does not include the capability information corresponding to the capability identification information or includes indication information that the capability does not exist, the terminal device needs to request the capability identification information corresponding The capability information and capability request information are used to instruct the terminal device to send capability identification information and corresponding capability information. It should be noted that when the capability identification information includes the specified capability identification, the capability request information is used to instruct the terminal device to send The capability information corresponding to the specified capability identifier; if the access network device receives the context establishment message that does not include the capability identifier information and the corresponding capability information, the capability request information is used to instruct the terminal device to send the capability identifier information.

Optionally, in some embodiments of the present application,

The sending module 803 is further configured to send the capability feedback information to the access network device when the capability request information is used to instruct the terminal device to send the capability identification information, and the capability feedback information includes capability identification information;

or,

The sending module 803 is further configured to send the capability feedback information to the access network device when the capability request information is used to instruct the terminal device to send the capability identification information and the corresponding capability information. The capability feedback information includes the capability identification information and the corresponding capability information. ;

or,

The sending module 803 is further configured to send the capability feedback information to the access network device when the capability request information is used to instruct the terminal device to send the capability information corresponding to the specified capability identifier. The capability feedback information includes the capability information corresponding to the specified capability identifier. .

In the embodiment of the present application, when the capability request information is used to instruct the terminal device to send capability identification information, the sending module 803 sends the capability feedback information to the access network device according to the corresponding capability request information, and the capability feedback information includes the capability identification information; or, the capability When the request information is used to instruct the terminal device to send capability identification information and corresponding capability information, the sending module 803 sends capability feedback information to the access network device according to the corresponding capability request information, and the capability feedback information includes capability identification information and corresponding capability information; Or, when the capability request information is used to instruct the terminal device to send the capability information corresponding to the specified capability identifier, the sending module 803 sends the capability feedback information to the access network device according to the corresponding capability request information. The capability feedback information includes the capability capability corresponding to the specified capability identifier. Capability information. The terminal equipment feeds back according to the capability request information of the access network equipment. It may only have the capability identification information or the capability information corresponding to the specified capability identifier, rather than the capability information of the capability set of the terminal equipment, which reduces the waste of network resources.

FIG. 9 is a schematic structural diagram of an access network device 90 according to an embodiment of the present application. The access network device 90 includes at least one processor 910 and a transceiver 930, and the transceiver 930 and the at least one processor 910 are interconnected through a line.

Optionally, as shown in FIG. 9, in some embodiments of the present application, the access network device 90 further includes: a memory 950; the memory 950 may include a read-only memory and a random access memory, and provide the processor 910 Operational instructions and data. A part of the memory 950 may further include a non-volatile random access memory (NVRAM). The memory 950 stores the following elements, executable modules or data structures, or a subset of them, or their extended set:

In the embodiment of the present application, a corresponding operation is performed by calling an operation instruction stored in the memory 950 (the operation instruction may be stored in an operating system). The processor 910 controls the operation of the access network device 90. The processor 910 may also be referred to as a central processing unit (CPU). The memory 950 may include a read-only memory and a random access memory, and provide instructions and data to the processor 910. A part of the memory 950 may further include NVRAM. In a specific application, various components of the access network device 90 are coupled together through a bus system 920. The bus system 920 may include a power bus, a control bus, and a status signal bus in addition to a data bus. However, for the sake of clarity, various buses are marked as the bus system 920 in the figure.

The method disclosed in the embodiments of the present application may be applied to the processor 910, or implemented by the processor 910. The processor 910 may be an integrated circuit chip and has a signal processing capability. In the implementation process, each step of the foregoing method may be completed by using an integrated logic circuit of hardware in the processor 910 or an instruction in the form of software. The above-mentioned processor 910 may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or an off-the-shelf programmable gate array (FPGA), or Other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. A general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in combination with the embodiments of the present application may be directly implemented by a hardware decoding processor, or may be performed by using a combination of hardware and software modules in the decoding processor. The software module may be located in a mature storage medium such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, and the like. The storage medium is located in the memory 950, and the processor 910 reads information in the memory 950 and completes the steps of the foregoing method in combination with its hardware.

Optionally, the transceiver 930 is configured to perform the steps of receiving and sending of the access network device in the embodiments shown in FIG. 2 to FIG. 5. For example, the transceiver 930 is configured to support the access network device to perform FIG. 2-FIG. In the embodiment shown in step 5, step 301 (specifically, sending an instruction to allow the capability indication information to be sent to the terminal device through a system broadcast message or an RRC connection establishment message), and step 303 (specifically receiving the terminal device through an RRC connection establishment completion message, and sending Capability identification information), step 304 (specifically, sending the capability identification information to the core network device through an initial terminal device message), and step 308 (specifically, sending the capability request information to the terminal device).

The processor 910 is configured to execute the processing steps of the access network device in the embodiments shown in FIG. 2 to FIG. 5. For example, the processor 910 is used to support the access network device to execute the steps in the embodiment shown in FIG. 2 to FIG. 5. Step 204 (specifically, the access network device determines whether to request the capability from the terminal device according to the context establishment message) and so on.

The core network devices and terminal devices described in the above embodiments can also be understood with reference to FIG. 9, where the functions of the corresponding transceivers and processors in the core network devices and terminal devices can perform the functions of the corresponding devices in FIGS. 2 to 5. Corresponding receiving, sending and processing steps.

FIG. 10 is a schematic structural diagram of a chip system 100 according to an embodiment of the present application. The chip system 100 includes at least one processor 1010 and an interface circuit 1030, and the interface circuit 1030 and the at least one processor 1010 are interconnected through lines.

Optionally, as shown in FIG. 10, in some embodiments of the present application, the chip system 100 further includes: a memory 1050; the memory 1050 may include a read-only memory and a random access memory, and provide an operation instruction to the processor 1010. And data. A part of the memory 1050 may further include NVRAM. The memory 1050 stores the following elements, executable modules or data structures, or a subset of them, or their extended set:

In the embodiment of the present application, a corresponding operation is performed by calling an operation instruction stored in the memory 1050 (the operation instruction may be stored in an operating system). The processor 1010 controls operations of the chip system 100, and the processor 1010 may also be referred to as a CPU. The memory 1050 may include a read-only memory and a random access memory, and provide instructions and data to the processor 1010. A part of the memory 1050 may further include NVRAM. In specific applications, the various components of the chip system 100 are coupled together by a bus system 1020. The bus system 1020 may include a power bus, a control bus, and a status signal bus in addition to a data bus. However, for the sake of clarity, various buses are marked as the bus system 1020 in the figure.

The method disclosed in the foregoing embodiment of the present application may be applied to the processor 1010, or implemented by the processor 1010. The processor 1010 may be an integrated circuit chip and has a signal processing capability. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 1010 or an instruction in a software form. The processor 1010 may be a general-purpose processor, a DSP, an ASIC, an FPGA, or other programmable logic devices, a discrete gate or transistor logic device, or a discrete hardware component. Various methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. A general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in combination with the embodiments of the present application may be directly implemented by a hardware decoding processor, or may be performed by using a combination of hardware and software modules in the decoding processor. The software module may be located in a mature storage medium such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, and the like. The storage medium is located in the memory 1050, and the processor 1010 reads the information in the memory 1050 and completes the steps of the foregoing method in combination with its hardware.

The chip systems of the access network equipment, core network equipment, and terminal equipment described in the above embodiments can be understood with reference to the chip system 100 of FIG. 10, in which the corresponding transceivers and processes in the access network equipment, core network equipment, and terminal equipment are understood. The functions of the device can perform corresponding receiving, sending, and processing steps of each corresponding device in FIG. 2 to FIG. 5.

An embodiment of the present application further provides a communication device, which may be a terminal device or a circuit. The communication apparatus may be configured to perform an action performed by a terminal device in the foregoing method embodiment.

When the communication device is a terminal device, FIG. 11 shows a simplified schematic diagram of the structure of the terminal device. It is easy to understand and easy to illustrate. In FIG. 11, the terminal device uses a mobile phone as an example. As shown in FIG. 11, the terminal device includes a processor, a memory, a radio frequency circuit, an antenna, and an input / output device. The processor is mainly used for processing communication protocols and communication data, controlling terminal devices, executing software programs, and processing data of the software programs. The memory is mainly used for storing software programs and data. The radio frequency circuit is mainly used for the conversion of baseband signals and radio frequency signals and the processing of radio frequency signals. The antenna is mainly used to transmit and receive radio frequency signals in the form of electromagnetic waves. Input / output devices, such as a touch screen, a display screen, and a keyboard, are mainly used to receive data input by the user and output data to the user. It should be noted that some types of terminal equipment may not have an input / output device.

When data needs to be sent, the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit. After the radio frequency circuit processes the baseband signal, the radio frequency signal is sent out through the antenna in the form of electromagnetic waves. When data is sent to the terminal device, the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data. For ease of description, only one memory and processor are shown in FIG. 11. In an actual terminal equipment product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device. The memory may be set independently of the processor or integrated with the processor, which is not limited in the embodiment of the present application.

In the embodiments of the present application, an antenna and a radio frequency circuit having a transmitting and receiving function may be regarded as a transmitting and receiving unit of a terminal device, and a processor having a processing function may be regarded as a processing unit of the terminal device. As shown in FIG. 11, the terminal device includes a transceiver unit 1110 and a processing unit 1120. The transceiver unit may also be referred to as a transceiver, a transceiver, a transceiver device, and the like. The processing unit may also be called a processor, a processing single board, a processing module, a processing device, and the like. Optionally, a device used to implement the receiving function in the transceiver unit 1110 may be regarded as a receiving unit, and a device used to implement the transmitting function in the transceiver unit 1110 may be regarded as a transmitting unit, that is, the transceiver unit 1110 includes a receiving unit and a transmitting unit. The transceiver unit may also be called a transceiver, a transceiver, or a transceiver circuit. The receiving unit may also be called a receiver, a receiver, or a receiving circuit. The transmitting unit may also be called a transmitter, a transmitter, or a transmitting circuit.

It should be understood that the transceiver unit 1110 is configured to perform the sending operation and the reception operation on the terminal device side in the foregoing method embodiment, and the processing unit 1120 is configured to perform operations other than the transceiver operation on the terminal device in the foregoing method embodiment.

For example, in an implementation manner, the transceiver unit 1110 is configured to perform the sending operation on the terminal device side in step 206 in FIG. 2, and / or the transceiver unit 1110 is further configured to perform other transceiver operations on the terminal device side in the embodiments of the present application. step.

For another example, in another implementation manner, the transceiver unit 1110 is configured to perform the receiving operations on the terminal device side in steps 301 and 308 in FIG. 3 or the transmitting operations on the terminal device side in steps 302 and 309, and / or the transceiver unit 1120 is also used to perform other sending and receiving steps on the terminal device side in the embodiments of the present application.

For another example, in yet another implementation manner, the transceiver unit 1110 is configured to perform a receiving operation on the terminal device side in step 407 in FIG. 4 or a transmitting operation on the terminal device side in steps 401 and 408, and / or the transceiver unit 1110 also It is used to perform other sending and receiving steps on the terminal device side in the embodiments of the present application.

When the communication device in this embodiment is a terminal device, an access network device, or a core network device, reference may be made to the device shown in FIG. 12. As an example, the device may perform functions similar to the processor 910 in FIG. 9. In FIG. 12, the device includes a processor 1210, a transmitting data processor 1220, and a receiving data processor 1230. The processor 910 in the above embodiment may be the processor 1210 in FIG. 12 and perform corresponding functions. The transceiver 930 in the above embodiment may be a sending data processor 1220 and / or a receiving data processor 1230 in FIG. 12. Although a channel encoder and a channel decoder are shown in FIG. 12, it can be understood that these modules do not constitute a restrictive description of this embodiment, but are only schematic.

FIG. 13 shows another form of each device in this embodiment. The processing device 1300 includes modules such as a modulation subsystem, a central processing subsystem, and a peripheral subsystem. The communication device in this embodiment may serve as a modulation subsystem therein. Specifically, the modulation subsystem may include a processor 1303 and an interface 1304. The processor 1303 performs the functions of the processor 910, and the interface 1304 performs the functions of the transceiver 930. As another modification, the modulation subsystem includes a memory 1306, a processor 1303, and a program stored on the memory 1306 and executable on the processor. When the processor 1303 executes the program, the terminal device side in the foregoing method embodiment is implemented. Methods. It should be noted that the memory 1306 may be non-volatile or volatile, and its location may be located inside the modulation subsystem or in the processing device 1300, as long as the memory 1306 can be connected to the memory 1306. The processor 1303 is sufficient.

In the above embodiments, the instructions stored in the memory for execution by the processor may be implemented in the form of a computer-readable storage medium. The computer program product may be written in the memory in advance, or it may be downloaded in the form of software and installed in the memory.

The computer-readable storage medium includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions according to the embodiments of the present application are wholly or partially generated. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server, or data center via a wired (e.g., Coaxial cable, optical fiber, digital subscriber line (DSL), or wireless (such as infrared, wireless, microwave, etc.) to transmit to another website site, computer, server, or data center. The computer-readable storage medium may be any available medium that can be stored by a computer or a data storage device such as a server, a data center, and the like that includes one or more available medium integration. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)), or the like.

The terminal capacity transmission method, related equipment, and computer-readable storage medium provided in the embodiments of the present application have been described in detail above. Specific examples have been applied in this document to explain the principle and implementation of the present application. The description of the above embodiments It is only used to help understand the method of the application and its core ideas; at the same time, for those of ordinary skill in the art, according to the ideas of the application, there will be changes in the specific implementation and application scope. In summary, this description The content should not be construed as a limitation on this application.

Claims

A terminal capability transmission method, including:

The access network device establishes a radio resource control RRC connection with the terminal device;

Receiving, by the access network device, a context establishment message of the terminal device sent by a core network device;

Determining, by the access network device, whether to request capabilities from the terminal device according to the context establishment message;

The access network device sends capability request information to the terminal device.
The method according to claim 1, wherein the establishing an RRC connection between the access network device and the terminal device further comprises:

The access network device receives the capability indication information sent by the terminal device through an RRC connection establishment completion message.
The method according to claim 2, wherein the capability indication information is capability identification information,

The method further includes:

Sending, by the access network device, a system broadcast message or an RRC connection establishment message to the terminal device to send an indication of the capability indication information to the terminal device, and the indication of the permission to send capability indication information is used to instruct the terminal device to establish through the RRC connection The completion message sends the capability identification information.
The method according to claim 3, further comprising:

The access network device sends the capability identification information to the core network device through an initial terminal device message.
The method according to claim 4, wherein the sending, by the access network device, the capability identification information to the core network device through an initial terminal device message comprises:

When the access network device has stored the capability information corresponding to the capability identification information, the access network device sends the capability identification information and capability storage indication information to the core network device through an initial terminal device message, The capability storage instruction information is used to indicate that the access network device has stored capability information corresponding to the capability identification information;

or,

When the access network device does not store the capability information corresponding to the capability identification information, the access network device sends the capability identification information to the core network device through an initial terminal device message.
A terminal capability transmission method, including:

When the access network device establishes a radio resource control RRC connection with the terminal device, the core network device generates a context establishment message of the terminal device;

The core network device sends the context establishment message to the access network device, and the context establishment message is used by the access network device to determine whether to send capability request information to the terminal device.
The method according to claim 6, wherein before the core network device generates the context establishment message of the terminal device, further comprising:

The core network device receives an initial terminal device message sent by the access network device.
The method according to claim 7, wherein the generating, by the core network device, a context establishment message of the terminal device comprises:

Determining, by the core network device, the terminal device according to the initial terminal device message;

Determining, by the core network device, whether to store capability identification information of the terminal device and corresponding capability information;

When the core network device has stored the capability identification information and corresponding capability information, the core network device generates a context establishment message of the terminal device according to the capability identification information and the corresponding capability information;

or,

When the core network device has stored the capability identification information and the capability information corresponding to the capability identification information is not stored, the core network device generates a context establishment message of the terminal device according to the capability identification information;

or,

When the core network device has stored the capability identification information and the capability information corresponding to the capability identification information is not stored, the core network device generates indication information that the capability corresponding to the capability identification information does not exist, and Generating the context establishment message of the terminal device by using the capability identification information and the indication information that the capability does not exist;

or,

When the core network device does not store the capability identification information and corresponding capability information, the core network device generates a context establishment message of the terminal device.
The method according to claim 7, wherein the initial terminal device message includes capability identification information,

The generating, by the core network device, a context establishment message of the terminal device includes:

Determining, by the core network device, the terminal device according to the initial terminal device message, and obtaining the capability identification information;

When the core network device has stored the capability information corresponding to the capability identification information, the core network device generates a context establishment message of the terminal device according to the capability identification information and the corresponding capability information;

or,

When the core network device does not store the capability information corresponding to the capability identification information, the core network device generates indication information that the capability corresponding to the capability identification information does not exist, and according to the capability identification information and the capability The existing indication information generates a context establishment message of the terminal device.
The method according to claim 7, wherein the initial terminal device message includes capability identification information and capability storage indication information, and the capability storage indication information is used to indicate that the access network device has stored the capability identification Capability information corresponding to the information,

The generating, by the core network device, a context establishment message of the terminal device includes:

Determining, by the core network device, the terminal device according to the initial terminal device message, and obtaining the capability identification information and the capability storage indication information;

Determining, by the core network device according to the capability storage instruction information, that the access network device has stored capability information corresponding to the capability identification information;

When the core network device has stored the capability information corresponding to the capability identification information, the core network device generates a context establishment message of the terminal device, and the context establishment message does not include the capability information of the terminal device;

or,

When the core network device does not store the capability information corresponding to the capability identification information, the core network device generates indication information that the capability corresponding to the capability identification information does not exist, and according to the capability identification information and the capability The existing indication information generates a context establishment message of the terminal device.
A terminal capability transmission method, including:

The terminal equipment establishes a radio resource control RRC connection with the access network equipment;

Receiving, by the terminal device, the capability request information sent by the access network device;

The terminal device sends capability feedback information to the access network device according to the capability request information.
The method according to claim 11, further comprising:

The terminal device sends the capability indication information to the access network device through an RRC connection establishment complete message.
The method according to claim 12, wherein the capability indication information is capability identification information,

The method further includes:

Receiving, by the terminal device through a system broadcast message or an RRC connection establishment message, an indication of sending capability indication information sent by the access network device, where the indication of sending capability indication information is used to instruct the terminal device to establish via RRC connection The completion message sends the capability identification information.
The method according to claim 12, wherein the capability indication information is capability identification support information,

The sending, by the terminal device, capability indication information to the access network device through an RRC connection establishment complete message includes:

When the terminal device supports the capability identification information reporting mechanism, the terminal device generates capability identification support information, and sends the capability identification support information to the access network device through an RRC connection establishment completion message.
The method according to any one of claims 11 to 14, wherein the capability request information is used to instruct the terminal device to send capability identification information, or the capability request information is used to instruct the terminal device to send Capability identification information and corresponding capability information, or the capability request information is used to instruct the terminal device to send capability information corresponding to a specified capability identifier, where the specified capability identifier is a capability identifier in the capability identifier information,

The sending, by the terminal device, the capability feedback information to the access network device according to the capability request information includes:

When the capability request information is used to instruct the terminal device to send capability identification information, the terminal device sends capability feedback information to the access network device, and the capability feedback information includes the capability identification information;

or,

When the capability request information is used to instruct the terminal device to send capability identification information and corresponding capability information, the terminal device sends capability feedback information to the access network device, and the capability feedback information includes capability identification information And corresponding capability information;

or,

When the capability request information is used to instruct the terminal device to send capability information corresponding to a specified capability identifier, the terminal device sends capability feedback information to the access network device, and the capability feedback information includes the specified Corresponding capability information.
An access network device, comprising:

Radio resource control RRC module, used to establish an RRC connection with a terminal device;

A receiving module, configured to receive a context establishment message of the terminal device sent by a core network device;

A processing module, configured to determine whether to request a capability from the terminal device according to the context establishment message received by the receiving module;

A sending module, configured to send capability request information to the terminal device.
The access network device according to claim 16, wherein:

The receiving module is further configured to receive the capability indication information sent by the terminal device through an RRC connection establishment complete message.
The access network device according to claim 17, wherein the capability indication information is capability identification information,

The sending module is further configured to send an instruction to allow sending capability indication information to the terminal device through a system broadcast message or an RRC connection establishment message, and the instruction to allow sending capability indication information is used to instruct the terminal device to pass RRC The connection establishment completion message sends the capability identification information.
The access network device according to claim 18, wherein:

The sending module is further configured to send the capability identification information to the core network device through an initial terminal device message.
The access network device according to claim 19, wherein:

The sending module is further configured to: when the capability information corresponding to the capability identification information has been stored, send the capability identification information and capability storage indication information to the core network device through an initial terminal device message, and the capability storage The indication information is used to indicate that the access network device has stored capability information corresponding to the capability identification information;

or,

The sending module is further configured to send the capability identification information to the core network device through an initial terminal device message when the capability information corresponding to the capability identification information is not stored.
A core network device, comprising:

A processing module, configured to generate a context establishment message of the terminal device when the access network device establishes a radio resource control RRC connection with the terminal;

A sending module, configured to send the context establishment message generated by the processing module to the access network device, where the context establishment message is used by the access network device to determine whether to send capability request information to the terminal device .
The core network device according to claim 21, wherein the core network device further comprises: a receiving module;

The receiving module is configured to receive an initial terminal device message sent by the access network device.
The core network device according to claim 22, wherein:

The processing module is further configured to determine the terminal device according to the initial terminal device message;

The processing module is further configured to determine whether to store capability identification information of the terminal device and corresponding capability information;

The processing module is further configured to generate the context establishment message of the terminal device according to the capability identification information and the corresponding capability information when the capability identification information and the corresponding capability information have been stored;

or,

The processing module is further configured to generate the context establishment message of the terminal device according to the capability identification information when the capability identification information has been stored and the capability information corresponding to the capability identification information is not stored;

or,

The processing module is further configured to generate indication information that the capability corresponding to the capability identification information does not exist when the capability identification information is stored and the capability information corresponding to the capability identification information is not stored, according to the capability Generating the context establishment message of the terminal device by the identification information and the indication information that the capability does not exist;

or,

The processing module is further configured to generate a context establishment message of the terminal device when the capability identification information and corresponding capability information are not stored.
The core network device according to claim 22, wherein the initial terminal device message includes capability identification information,

The processing module is further configured to determine the terminal device according to the initial terminal device message, and obtain the capability identification information;

The processing module is further configured to generate a context establishment message of the terminal device according to the capability identification information and the corresponding capability information when the capability information corresponding to the capability identification information has been stored;

or,

The processing module is further configured to generate, when the capability information corresponding to the capability identification information is not stored, indication information indicating that the capability corresponding to the capability identification information does not exist, and according to the capability identification information and the capability that does not exist, The instruction information generates a context establishment message of the terminal device.
The core network device according to claim 22, wherein the initial terminal device message includes capability identification information and capability storage indication information, and the capability storage indication information is used to indicate that the access network device has stored the Capability information corresponding to capability identification information,

The processing module is further configured to determine the terminal device according to the initial terminal device message, and obtain the capability identification information and the capability storage indication information;

The processing module is further configured to determine, according to the capability storage instruction information, that the access network device has stored capability information corresponding to the capability identification information;

The processing module is further configured to generate a context establishing message of the terminal device when the capability information corresponding to the capability identification information has been stored, where the context establishing message does not include the capability information of the terminal device;

or,

The processing module is further configured to generate, when the capability information corresponding to the capability identification information is not stored, indication information indicating that the capability corresponding to the capability identification information does not exist, and according to the capability identification information and the capability that does not exist, The instruction information generates a context establishment message of the terminal device.
A terminal device, comprising:

Radio resource control RRC module, used to establish an RRC connection with an access network device;

A receiving module, configured to receive capability request information sent by the access network device;

A sending module, configured to send capability feedback information to the access network device according to the capability request information.
The terminal device according to claim 26, wherein

The sending module is further configured to send the capability indication information to the access network device through an RRC connection establishment complete message.
The terminal device according to claim 27, wherein the capability indication information is capability identification information,

The receiving module is further configured to receive an indication of sending capability indication information sent by the access network device through a system broadcast message or an RRC connection establishment message, where the indication of sending capability indication information is used to instruct the terminal device Sending the capability identification information through an RRC connection establishment completion message.
The terminal device according to claim 27, wherein the capability indication information is capability identification support information,

The sending module is further configured to: when the capability identification information reporting mechanism is supported, generate capability identification support information, and send the capability identification support information to the access network device through an RRC connection establishment completion message.
The terminal device according to any one of claims 26 to 29, wherein the capability request information is used to instruct the terminal device to send capability identification information, or the capability request information is used to instruct the terminal device Sending capability identification information and corresponding capability information, or the capability request information is used to instruct the terminal device to send capability information corresponding to a specified capability identification, and the specified capability identification is the capability identification in the capability identification information ,

The sending module is further configured to send the capability feedback information to the access network device when the capability request information is used to instruct the terminal device to send capability identification information, and the capability feedback information includes the capability identifier. information;

or,

The sending module is further configured to send the capability feedback information to the access network device when the capability request information is used to instruct the terminal device to send capability identification information and corresponding capability information, and the capability feedback information Including capability identification information and corresponding capability information;

or,

The sending module is further configured to send the capability feedback information to the access network device when the capability request information is used to instruct the terminal device to send capability information corresponding to a specified capability identifier, and the capability feedback information Including capability information corresponding to the specified capability identifier.
A computer-readable storage medium having stored thereon a computer program, characterized in that, when the program is executed by a processor, the communication method according to any one of claims 1 to 5 is implemented.
A computer-readable storage medium having stored thereon a computer program, characterized in that when the program is executed by a processor, the communication method according to any one of claims 6 to 10 is implemented.
A computer-readable storage medium having stored thereon a computer program, characterized in that when the program is executed by a processor, the communication method according to any one of claims 11 to 15 is implemented.
A communication device includes a memory, a processor, and a program stored on the memory and executable on the processor, wherein the processor implements any of claims 1 to 5 when the processor executes the program. A communication method according to one item.
A communication device includes a memory, a processor, and a program stored on the memory and executable on the processor, wherein the processor implements any of claims 6 to 10 when the processor executes the program. A communication method according to one item.
A communication device includes a memory, a processor, and a program stored on the memory and executable on the processor, wherein the processor implements any of claims 11 to 15 when the processor executes the program. A communication method according to one item.
A communication system includes an access network device according to any one of claims 16-20, and a core network device according to any one of claims 21-25.