CN112040556A

CN112040556A - Communication method and device

Info

Publication number: CN112040556A
Application number: CN201910477886.1A
Authority: CN
Inventors: 陈磊; 李秉肇; 王学龙; 王宏
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-06-03
Filing date: 2019-06-03
Publication date: 2020-12-04
Anticipated expiration: 2039-06-03
Also published as: CN115988673A; CN112040556B

Abstract

The application relates to a communication method and a device, wherein the communication method comprises the following steps: the access network equipment receives a first message from the terminal equipment, wherein the first message carries indication information, the indication information is used for indicating that first uplink data is sent, and the first message also carries an identifier of the terminal equipment; the access network equipment determines whether first information corresponding to the first message or the first uplink data is stored or not according to the identifier of the terminal equipment; and when the first information is stored, the access network equipment sends a second message to the terminal equipment, wherein the second message carries the first information. The terminal equipment can send the first message carrying the indication information to the access network equipment, and the access network equipment can store the first information corresponding to the first message or the first uplink data, so that the access network equipment can directly send the stored first information to the terminal equipment, the waiting process of the terminal equipment is reduced, and the terminal equipment is favorable for saving electricity.

Description

Communication method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a communication method and device.

Background

Aiming at the characteristic that Radio Resource Control (RRC) connection needs to be established even when a small amount of data is transmitted by a terminal device, in order to reduce the steps of connection or release and the like required by the terminal device for establishing RRC connection and reduce data transmission power consumption, an Early Data Transmission (EDT) mechanism is introduced at present. Under the EDT mechanism, the terminal equipment is allowed to transmit a small amount of data through a third message (Msg3) in the random access process, and the transmission process is ended after a fourth message (Msg4) in the random access process without entering an RRC connection state.

However, there is a sensor, which may be referred to as a self-powered sensor, which relies on energy (e.g., solar, wind, electromagnetic, or thermal) from the surrounding environment for communication without using battery power. The sensor is characterized by limited energy, uncontrollable energy arrival and short energy-bearing time. Therefore, when such sensors communicate, the communication may be interrupted at any time. For example, the self-powered sensor is depleted of power after sending Msg3 to the base station, and thus does not receive Msg4 from the base station. After the base station sends Msg4, all context and untransmitted data are deleted because it does not receive feedback from the self-powered sensor for a long time. The self-powered sensor will resend Msg3 to the base station the next time the power arrives, and the base station needs to interact with the core network device again to resend Msg4 to the self-powered sensor. The time required for interaction between the base station and the core network device is long, and the self-powered sensor needs to wait for a long time, so that the electric quantity of the self-powered sensor is wasted.

Disclosure of Invention

The embodiment of the application provides a communication method and equipment, which are used for reducing energy waste.

In a first aspect, a first communication method is provided, the method including: the method comprises the steps that access network equipment receives a first message from terminal equipment, wherein the first message carries indication information, the indication information is used for indicating that first uplink data are sent, and the first message also carries an identifier of the terminal equipment; the access network equipment determines whether first information corresponding to the first message or the first uplink data is stored or not according to the identifier of the terminal equipment; and when the first information is stored, the access network equipment sends a second message to the terminal equipment, wherein the second message carries the first information.

The method may be performed by a first communication device, which may be a communication apparatus or a communication device, such as a system-on-a-chip, capable of supporting the communication apparatus to implement the functionality required for the method. Illustratively, the communication device is an access network device.

In the embodiment of the application, the terminal device may send the first message carrying the indication information to the access network device, and the access network device may store the first information corresponding to the first message or the first uplink data, so that the access network device may directly send the stored first information to the terminal device, thereby reducing a waiting process of the terminal device. For example, the terminal device is a self-powered terminal device, the first message is Msg3, that is, the terminal device is exhausted after sending Msg3 to the access network device, and after power is restored, Msg3 is sent to the access network device again. The access network device may not delete the context (e.g., the first information) of the terminal device for the moment, and after receiving the Msg3 retransmitted by the terminal device, the access network device may directly send the stored first information to the terminal device, so that interaction with the core network device is not required to determine the first information, the time for acquiring the first information is reduced, the time for the terminal device to wait is also reduced, the energy consumption of the terminal device is reduced, and power saving is facilitated.

With reference to the first aspect, in a possible implementation manner of the first aspect, the method further includes:

the access network equipment receives a type indication message from the terminal equipment, wherein the type indication message is used for indicating that the type of the terminal equipment is a first type.

The access network equipment can store the context and other information of the terminal equipment for a longer time under the condition that the type of the terminal equipment is determined to be the first type of the terminal equipment, so that the pertinence can be achieved, the access network equipment does not need to store the contexts of all the terminal equipment for a longer time, and the storage space of the access network equipment can be saved as much as possible. The first type may be, for example, a self-powered type, an energy-limited type, or may be another type, such as a general type, for example, the type of the terminal device may be considered as the first type as long as the access network device is required to store the context for a longer time, and is not limited in particular.

before receiving the first message from the terminal device, the access network device receives a third message from the terminal device, where the third message carries first uplink data, the first message is the retransmitted third message, and the third message also carries a first identifier, where the first identifier is an identifier of the first uplink data;

the access network equipment determines the first information according to the first uplink data;

the access network equipment sends a sixth message to the terminal equipment, wherein the sixth message carries the first information;

when the access network equipment does not receive a response message corresponding to the sixth message from the terminal equipment, the access network equipment stores the first information, wherein the type of the terminal equipment is the first type.

The access network device receives the third message from the terminal device in advance, and the access network device also sends the sixth message to the terminal device, but the access network device does not receive a response message corresponding to the sixth message from the terminal device, so the access network device can store the first information. Therefore, if the terminal equipment subsequently indicates that the first uplink data is sent, the access network equipment can directly send the first information to the terminal equipment without waiting for a long time by the terminal equipment, and the terminal equipment is favorable for saving electricity.

and the access network equipment stores the corresponding relation among the identifier of the terminal equipment, the first identifier and the first information.

For a terminal device, multiple messages may be sent to the access network device, and thus, in addition to the first uplink data, the terminal device may also send other uplink data to the access network device. Therefore, a first identifier may be set for the first uplink data or the third message, and the access network device may store the identifier of the terminal device, the first identifier, and the corresponding relationship between the first information, so that the corresponding first information may be found according to the identifier of the terminal device and the first identifier.

With reference to the first aspect, in a possible implementation manner of the first aspect, the first message does not carry first uplink data, and the method further includes:

when determining that the first information is not stored, the access network equipment sends a fourth message to the terminal equipment, wherein the fourth message is used for requesting to resend the first uplink data;

the access network equipment receives a fifth message from the terminal equipment, wherein the fifth message carries the first uplink data;

and the access network equipment sends a seventh message to the terminal equipment, wherein the seventh message carries the first information.

If the first message does not carry the first uplink data and the access network device does not store the first information, the access network device may request the terminal device for the first uplink data again, so that the access network device may determine the first information.

With reference to the first aspect, in a possible implementation manner of the first aspect, the first message carries first uplink data, and the method further includes:

when determining that the first information is not stored, the access network equipment determines the first information according to the first uplink data;

If the first message carries the first uplink data, the access network device can directly determine the first information according to the first uplink data if the first information is not stored, and does not need to request the terminal device for the first uplink data again, thereby reducing the interaction between the access network device and the terminal device and saving the signaling overhead.

With reference to the first aspect, in a possible implementation manner of the first aspect, the determining, by the access network device, the first information according to the first uplink data includes:

the access network equipment sends the first uplink data to core network equipment;

the access network device receives the first information from the core network device.

As a way for the access network device to determine the first information, the access network device may send the first uplink data to the core network device, and the core network device determines the first information and sends the first information to the access network device, so that the access network device determines the first information. Alternatively, the access network device may determine the first information in other manners, for example, the access network device may determine the first information by itself without interacting with the core network device. The manner in which the access network device determines the first information is not limited.

With reference to the first aspect, in a possible implementation manner of the first aspect, the first message further carries a first identifier, where the first identifier is an identifier of the first uplink data.

The first message may carry a first identifier, which is convenient for the access network device to search for corresponding first information according to the identifier of the terminal device and the first identifier.

With reference to the first aspect, in a possible implementation manner of the first aspect, the determining, by the access network device, whether first information corresponding to the first message or the first uplink data is stored according to the identifier of the terminal device includes:

and the access network equipment determines whether the first information corresponding to the identifier of the terminal equipment and the first identifier is stored or not according to the identifier of the terminal equipment and the first identifier carried by the first message.

If the terminal device stores the identifier of the terminal device, the corresponding relationship between the first identifier and the first information, the access network device may search whether the corresponding first information is stored according to the identifier of the terminal device and the first identifier. In this way, even if the terminal device sends a plurality of uplink data to the access network device, the possibility of wrong indexing of the first information is reduced due to the existence of the first identifier.

In a second aspect, a second communication method is provided, the method comprising: a terminal device sends a first message to an access network device, wherein the first message carries indication information, the indication information is used for indicating that first uplink data has been sent, and the first message also carries an identifier of the terminal device; and the terminal equipment receives a second message from the access network equipment, wherein the second message carries first information, and the first information corresponds to the first message or the first uplink data.

The method may be performed by a second communication device, which may be a communication apparatus or a communication device capable of supporting a communication apparatus to implement the functions required by the method, such as a system-on-a-chip. Illustratively, the communication device is a terminal device.

With reference to the second aspect, in one possible implementation manner of the second aspect, the method further includes:

and the terminal equipment sends a type indication message to the access network equipment, wherein the type indication message is used for indicating that the type of the terminal equipment is a first type.

With reference to the second aspect, in a possible implementation manner of the second aspect, the first message further carries a first identifier, where the first identifier is an identifier of the first uplink data.

With reference to the second aspect, in a possible implementation manner of the second aspect, the first message does not carry first uplink data, and before the terminal device receives the second message from the access network device, the method further includes:

the terminal equipment receives a fourth message from the access network equipment, wherein the fourth message is used for requesting to resend the first uplink data;

and the terminal equipment sends a fifth message to the access network equipment, wherein the fifth message carries the first uplink data.

With reference to the second aspect, in a possible implementation manner of the second aspect, the first message further carries the first uplink data.

With regard to the technical effects brought by the second aspect or the various embodiments of the second aspect, reference may be made to the introduction of the technical effects of the first aspect or the various embodiments of the first aspect, and details are not repeated.

In a third aspect, a third method of communication is provided, the method comprising: the method comprises the steps that network equipment receives energy information of terminal equipment, wherein the energy information is used for indicating the comprehensive energy state of the terminal equipment in a first duration or indicating the current energy state of the terminal equipment; and the network equipment sends a paging message to the terminal equipment according to the energy information.

The method may be performed by a third communication device, which may be a communication apparatus or a communication device capable of supporting a communication apparatus to implement the functions required by the method, such as a system-on-chip. Illustratively, the communication device is a network device.

By the method provided by the embodiment of the application, the network equipment can receive the energy information of the terminal equipment, so that whether the paging is initiated to the terminal equipment is determined according to the energy condition of the terminal equipment, the network equipment can call the terminal equipment when the terminal equipment is powered on as far as possible, the waste of network resources is reduced, and the paging success rate is improved. And the network device does not need to register the terminal device because the terminal device is not paged, thereby reducing the possibility that the terminal device needs to register again.

With reference to the third aspect, in a possible implementation manner of the third aspect, the sending, by the network device, a paging message to the terminal device according to the energy information includes:

when first downlink information arrives, the network equipment determines whether the current energy of the terminal equipment supports receiving the first downlink information according to the energy information;

and when the current energy of the terminal equipment supports receiving the first downlink information, the network equipment sends the paging message to the terminal equipment.

The network device can determine whether to page the terminal device when the first downlink information to be sent to the terminal device arrives, so that invalid paging to the terminal device can be reduced. And the network equipment can determine whether to initiate paging to the terminal equipment according to the energy condition of the terminal equipment, so that the network equipment can call the terminal equipment when the terminal equipment is powered on as much as possible, the waste of network resources is reduced, and the paging success rate is improved.

In a fourth aspect, a fourth communication method is provided, the method comprising: the method comprises the steps that terminal equipment determines energy information of the terminal equipment, wherein the energy information is used for indicating the comprehensive energy state of the terminal equipment within a first time length or indicating the current energy state of the terminal equipment; and the terminal equipment sends the energy information to network equipment.

The method may be performed by a fourth communication device, which may be a communication apparatus or a communication device capable of supporting a communication apparatus to implement the functions required by the method, such as a system-on-chip. Illustratively, the communication device is a terminal device.

With reference to the fourth aspect, in a possible implementation manner of the fourth aspect, the method further includes: and the terminal equipment receives the paging message from the network equipment.

With regard to the technical effects of the fourth aspect or the various embodiments of the fourth aspect, reference may be made to the description of the technical effects of the third aspect or the various embodiments of the third aspect, and details are not repeated.

In a fifth aspect, a fifth communication method is provided, the method comprising: the method comprises the steps that network equipment receives a first message from terminal equipment, wherein the first message is used for indicating that the energy state of the terminal equipment is a first state; the network device determines not to send information to the terminal device.

The method may be performed by a fifth communication device, which may be a communication apparatus or a communication device capable of supporting a communication apparatus to implement the functions required by the method, such as a system-on-chip. Illustratively, the communication device is a network device.

By the method provided by the embodiment of the application, the terminal equipment can inform the network equipment of the energy condition of the terminal equipment, so that the network equipment can determine whether to initiate paging to the terminal equipment according to the energy condition of the terminal equipment, and the network equipment can call the terminal equipment when the terminal equipment is powered on as much as possible, thereby reducing the waste of network resources and improving the paging success rate. And the network device does not need to register the terminal device because the terminal device is not paged, thereby reducing the possibility that the terminal device needs to register again.

With reference to the fifth aspect, in one possible implementation manner of the fifth aspect, the method further includes: the network equipment receives a second message from the terminal equipment, wherein the second message is used for indicating that the energy state of the terminal equipment is a second state; the network device determines that information can be sent to the terminal device.

For example, the terminal device may periodically determine the energy of the terminal device. After sending the first message to the network device, the terminal device may enter a low energy state or a power-off state. After a period of time, the terminal device may obtain energy again, for example, the energy of the terminal device may be greater than or equal to the first threshold, the terminal device may send a second message to the network device, where the second message is used to indicate that the energy state of the terminal device is the second state, or indicate that the energy of the terminal device is greater than or equal to the first threshold. After receiving the second message, the network device may determine that information can be sent to the terminal device. The terminal equipment informs the network equipment of the energy state of the terminal equipment in time, so that the network equipment can initiate paging to the terminal equipment when in need.

With reference to the fifth aspect, in one possible implementation manner of the fifth aspect, the method further includes:

and the network equipment sends a first threshold to the terminal equipment, wherein the first threshold is used for determining that the energy state of the terminal equipment is the first state or the second state.

The first threshold may be configured by the network device, or may also be specified by a protocol, or may also be determined by the terminal device, which is not limited specifically.

In a sixth aspect, a sixth communication method is provided, the method comprising: the terminal equipment determines that the energy state of the terminal equipment is a first state; the terminal device sends a first message to a network device, wherein the first message is used for indicating that the energy state of the terminal device is the first state.

The method may be performed by a sixth communication apparatus, which may be a communication device or a communication apparatus capable of supporting a communication device to implement the functions required by the method, such as a system-on-chip. Illustratively, the communication device is a terminal device.

With reference to the sixth aspect, in one possible implementation of the sixth aspect, the method further includes:

the terminal equipment determines that the energy state of the terminal equipment is a second state;

and the terminal equipment sends a second message to network equipment, wherein the second message is used for indicating that the energy state of the terminal equipment is the second state.

the terminal equipment receives a first threshold from the network equipment; or the like, or, alternatively,

the terminal equipment determines the first threshold;

wherein the first threshold is used for determining that the energy state of the terminal device is the first state or the second state.

With regard to the technical effects brought by the sixth aspect or the various embodiments of the sixth aspect, reference may be made to the introduction of the technical effects of the fifth aspect or the various embodiments of the fifth aspect, and details are not repeated.

A seventh aspect provides a first communication device, for example, the first communication device as described above. The communication device is configured to perform the method of the first aspect or any possible implementation manner of the first aspect. In particular, the communication device may comprise means, for example comprising a processing means and a transceiver means, for performing the method of the first aspect or any possible implementation manner of the first aspect. Illustratively, the communication device is an access network device. Wherein the content of the first and second substances,

the transceiver module is configured to receive a first message from a terminal device, where the first message carries indication information, where the indication information is used to indicate that the first uplink data has been sent, and the first message also carries an identifier of the terminal device;

the processing module is configured to determine whether first information corresponding to the first message or the first uplink data is stored according to the identifier of the terminal device;

the transceiver module is further configured to send a second message to the terminal device when the processing module determines that the first information is stored, where the second message carries the first information.

With reference to the seventh aspect, in a possible implementation manner of the seventh aspect, the transceiver module is further configured to receive a type indication message from the terminal device, where the type indication message is used to indicate that the type of the terminal device is the first type.

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

the transceiver module is further configured to receive a third message from the terminal device before receiving the first message from the terminal device, where the third message carries first uplink data, the first message is the retransmitted third message, and the third message also carries a first identifier, where the first identifier is an identifier of the first uplink data;

the processing module is further configured to determine the first information according to the first uplink data;

the transceiver module is further configured to send a sixth message to the terminal device, where the sixth message carries the first information;

the processing module is further configured to store the first information when the access network device does not receive a response message corresponding to the sixth message from a terminal device, where the type of the terminal device is the first type.

With reference to the seventh aspect, in a possible implementation manner of the seventh aspect, the processing module is further configured to store a correspondence between an identifier of the terminal device, the first identifier, and the first information.

With reference to the seventh aspect, in a possible implementation manner of the seventh aspect, the first message does not carry first uplink data,

the transceiver module is further configured to send a fourth message to the terminal device when the processing module determines that the first information is not stored, where the fourth message is used to request to resend the first uplink data;

the transceiver module is further configured to receive a fifth message from the terminal device, where the fifth message carries the first uplink data;

the transceiver module is further configured to send a seventh message to the terminal device, where the seventh message carries the first information.

With reference to the seventh aspect, in a possible implementation manner of the seventh aspect, the first message carries first uplink data,

the processing module is further configured to determine the first information according to the first uplink data when it is determined that the first information is not stored;

With reference to the seventh aspect, in a possible implementation manner of the seventh aspect, the processing module is configured to determine the first information according to the first uplink data by:

sending the first uplink data to core network equipment through the transceiver module;

receiving the first information from the core network device through the transceiver module.

With reference to the seventh aspect, in a possible implementation manner of the seventh aspect, the first message further carries a first identifier, where the first identifier is an identifier of the first uplink data.

With reference to the seventh aspect, in a possible implementation manner of the seventh aspect, the processing module is configured to determine whether first information corresponding to the first message or the first uplink data is stored according to the identifier of the terminal device by:

and determining whether the first information corresponding to the identifier of the terminal equipment and the first identifier is stored or not according to the identifier of the terminal equipment and the first identifier carried by the first message.

With regard to the technical effects brought by the seventh aspect or the various embodiments of the seventh aspect, reference may be made to the introduction of the technical effects of the first aspect or the various embodiments of the first aspect, and details are not repeated.

In an eighth aspect, a second communication device is provided, for example, the communication device is the second communication device as described above. The communication device is configured to perform the method of the second aspect or any possible implementation manner of the second aspect. In particular, the communication device may comprise means for performing the method of the second aspect or any possible implementation manner of the second aspect, for example comprising a processing means and a transceiver means. Illustratively, the communication device is a terminal equipment. Wherein the content of the first and second substances,

the processing module is used for determining that the first uplink data is sent;

the transceiver module is configured to send a first message to an access network device, where the first message carries indication information, where the indication information is used to indicate that the first uplink data has been sent, and the first message also carries an identifier of the terminal device;

the transceiver module is further configured to receive a second message from the access network device, where the second message carries first information, and the first information corresponds to the first message or the first uplink data.

With reference to the eighth aspect, in a possible implementation manner of the eighth aspect, the transceiver module is further configured to send a type indication message to the access network device, where the type indication message is used to indicate that the type of the terminal device is the first type.

With reference to the eighth aspect, in a possible implementation manner of the eighth aspect, the first message further carries a first identifier, where the first identifier is an identifier of the first uplink data.

With reference to the eighth aspect, in a possible implementation manner of the eighth aspect, the first message does not carry first uplink data, and the transceiver module is further configured to:

before receiving the second message from the access network device, receiving a fourth message from the access network device, where the fourth message is used to request to resend the first uplink data;

and sending a fifth message to the access network equipment, wherein the fifth message carries the first uplink data.

With reference to the eighth aspect, in a possible implementation manner of the eighth aspect, the first message further carries the first uplink data.

With regard to the technical effects brought by the eighth aspect or the various embodiments of the eighth aspect, reference may be made to the introduction of the technical effects of the second aspect or the various embodiments of the second aspect, and details are not repeated.

In a ninth aspect, a third communication device is provided, for example, the communication device is the third communication device as described above. The communication device is configured to perform the method of the third aspect or any possible implementation manner of the third aspect. In particular, the communication device may comprise means, for example comprising a processing means and a transceiver means, for performing the method of the third aspect or any possible implementation manner of the third aspect. Illustratively, the communication device is a network device. Wherein the content of the first and second substances,

the transceiver module is configured to receive energy information of a terminal device, where the energy information is used to indicate a comprehensive energy state of the terminal device within a first duration, or is used to indicate a current energy state of the terminal device;

and the processing module is used for sending a paging message to the terminal equipment according to the energy information.

With reference to the ninth aspect, in a possible implementation manner of the ninth aspect, the processing module is configured to send a paging message to the terminal device according to the energy information by:

when first downlink information arrives, determining whether the current energy of the terminal equipment supports receiving the first downlink information according to the energy information;

and when the current energy of the terminal equipment supports receiving the first downlink information, sending the paging message to the terminal equipment.

With regard to the technical effects of the ninth aspect or the various embodiments of the ninth aspect, reference may be made to the description of the technical effects of the third aspect or the various embodiments of the third aspect, and details are not repeated.

In a tenth aspect, a fourth communication device is provided, for example, the communication device is the fourth communication device as described above. The communication device is configured to perform the method of the fourth aspect or any possible implementation manner of the fourth aspect. In particular, the communication device may comprise means for performing the method of the fourth aspect or any possible implementation manner of the fourth aspect, for example comprising a processing means and a transceiver means. Illustratively, the communication device is a terminal equipment. Wherein the content of the first and second substances,

the processing module is configured to determine energy information of the terminal device, where the energy information is used to indicate a comprehensive energy state of the terminal device within a first duration, or is used to indicate a current energy state of the terminal device;

and the transceiver module is used for transmitting the energy information to network equipment.

With reference to the tenth aspect, in a possible implementation manner of the tenth aspect, the transceiver module is further configured to receive a paging message from the network device.

With regard to the technical effects brought by the tenth aspect or the various embodiments of the tenth aspect, reference may be made to the introduction of the technical effects of the fourth aspect or the various embodiments of the fourth aspect, and details are not repeated.

In an eleventh aspect, a fifth communication device is provided, for example, the communication device is the fifth communication device as described above. The communication device is configured to perform the method of the fifth aspect or any possible implementation manner of the fifth aspect. In particular, the communication device may comprise means for performing the method of the fifth aspect or any possible implementation manner of the fifth aspect, for example comprising a processing means and a transceiver means. Illustratively, the communication device is a network device. Wherein the content of the first and second substances,

the transceiver module is configured to receive a first message from a terminal device, where the first message is used to indicate that an energy state of the terminal device is a first state;

and the processing module is used for determining not to send information to the terminal equipment.

With reference to the eleventh aspect, in one possible embodiment of the eleventh aspect,

the transceiver module is further configured to receive a second message from the terminal device, where the second message is used to indicate that the energy state of the terminal device is a second state;

the processing module is further configured to determine that information can be sent to the terminal device.

With reference to the eleventh aspect, in a possible implementation manner of the eleventh aspect, the transceiver module is further configured to send a first threshold to the terminal device, where the first threshold is used to determine that an energy state of the terminal device is the first state or the second state.

With regard to the technical effects brought by the various embodiments of the eleventh aspect or the eleventh aspect, reference may be made to the introduction of the technical effects of the various embodiments of the fifth aspect or the fifth aspect, and details are not repeated.

A twelfth aspect provides a sixth communication device, for example, the communication device is the sixth communication device as described above. The communication device is configured to perform the method of the sixth aspect or any possible implementation manner of the sixth aspect. In particular, the communication device may comprise means, for example comprising processing means and transceiver means, for performing the method of the sixth aspect or any possible implementation manner of the sixth aspect. Illustratively, the communication device is a terminal equipment. Wherein the content of the first and second substances,

the processing module is used for determining that the energy state of the terminal equipment is a first state;

the transceiver module is configured to send a first message to a network device, where the first message is used to indicate that an energy state of the terminal device is the first state.

With reference to the twelfth aspect, in one possible implementation of the twelfth aspect,

the processing module is further configured to determine that the energy state of the terminal device is a second state;

the transceiver module is further configured to send a second message to a network device, where the second message is used to indicate that the energy state of the terminal device is the second state.

the transceiver module is further configured to receive a first threshold from the network device; or the like, or, alternatively,

the processing module is further configured to determine the first threshold;

With regard to the technical effects brought by the twelfth aspect or the various embodiments of the twelfth aspect, reference may be made to the introduction of the technical effects of the sixth aspect or the various embodiments of the sixth aspect, and details are not repeated.

In a thirteenth aspect, a seventh communication device is provided, for example, the first communication device as described above. The communication device comprises a processor and a memory and, optionally, a transceiver for implementing the method as described in the first aspect or in various possible designs of the first aspect. Illustratively, the communication means is a chip provided in the communication device. Illustratively, the communication device is an access network device. Wherein, the transceiver is implemented by an antenna, a feeder, a codec, etc. in the communication device, for example, or, if the communication device is a chip disposed in the communication device, the transceiver is, for example, a communication interface in the chip, and the communication interface is connected with a radio frequency transceiving component in the communication device to implement transceiving of information by the radio frequency transceiving component. Wherein the content of the first and second substances,

the transceiver is configured to receive a first message from a terminal device, where the first message carries indication information, where the indication information is used to indicate that the first uplink data has been sent, and the first message also carries an identifier of the terminal device;

the processor is configured to determine whether first information corresponding to the first message or the first uplink data is stored according to the identifier of the terminal device;

the transceiver is further configured to send a second message to the terminal device when the processing module determines that the first information is stored, where the second message carries the first information.

With reference to the thirteenth aspect, in a possible implementation manner of the thirteenth aspect, the transceiver is further configured to receive a type indication message from the terminal device, where the type indication message is used to indicate that the type of the terminal device is the first type.

With reference to the thirteenth aspect, in one possible implementation of the thirteenth aspect,

the transceiver is further configured to receive a third message from the terminal device before receiving the first message from the terminal device, where the third message carries first uplink data, the first message is the retransmitted third message, and the third message also carries a first identifier, where the first identifier is an identifier of the first uplink data;

the processor is further configured to determine the first information according to the first uplink data;

the transceiver is further configured to send a sixth message to the terminal device, where the sixth message carries the first information;

the processor is further configured to store the first information when the access network device does not receive a response message corresponding to the sixth message from a terminal device, where a type of the terminal device is the first type.

With reference to the thirteenth aspect, in a possible implementation manner of the thirteenth aspect, the processor is further configured to store a correspondence between an identifier of the terminal device, the first identifier, and the first information.

With reference to the thirteenth aspect, in a possible implementation manner of the thirteenth aspect, the first message does not carry first uplink data,

the transceiver is further configured to send a fourth message to the terminal device when the processor determines that the first information is not stored, where the fourth message is used to request to resend the first uplink data;

the transceiver is further configured to receive a fifth message from the terminal device, where the fifth message carries the first uplink data;

With reference to the thirteenth aspect, in a possible implementation manner of the thirteenth aspect, the first message carries first uplink data,

the processor is further configured to determine the first information according to the first uplink data when it is determined that the first information is not stored;

the transceiver is further configured to send a seventh message to the terminal device, where the seventh message carries the first information.

With reference to the thirteenth aspect, in a possible implementation manner of the thirteenth aspect, the processor is configured to determine the first information according to the first uplink data by:

sending the first uplink data to core network equipment through the transceiver;

receiving, by the transceiver, the first information from the core network device.

With reference to the thirteenth aspect, in a possible implementation manner of the thirteenth aspect, the first message further carries a first identifier, where the first identifier is an identifier of the first uplink data.

With reference to the thirteenth aspect, in a possible implementation manner of the thirteenth aspect, the processor is configured to determine whether first information corresponding to the first message or the first uplink data is stored according to the identifier of the terminal device by:

With regard to the technical effects brought by the thirteenth aspect or the various embodiments of the thirteenth aspect, reference may be made to the introduction of the technical effects of the first aspect or the various embodiments of the first aspect, and details are not repeated.

In a fourteenth aspect, an eighth communication device is provided, for example, the second communication device as described above. The communication device comprises a processor and a transceiver for implementing the method as described in the second aspect above or in various possible designs of the second aspect. Illustratively, the communication means is a chip provided in the communication device. Illustratively, the communication device is a terminal device. Wherein, the transceiver is implemented by an antenna, a feeder, a codec, etc. in the communication device, for example, or, if the communication device is a chip disposed in the communication device, the transceiver is, for example, a communication interface in the chip, and the communication interface is connected with a radio frequency transceiving component in the communication device to implement transceiving of information by the radio frequency transceiving component. Wherein the content of the first and second substances,

the processor is configured to determine that the first uplink data has been sent;

the transceiver is configured to send a first message to an access network device, where the first message carries indication information, where the indication information is used to indicate that the first uplink data has been sent, and the first message also carries an identifier of the terminal device;

the transceiver is further configured to receive a second message from the access network device, where the second message carries first information, and the first information corresponds to the first message or the first uplink data.

With reference to the fourteenth aspect, in a possible implementation manner of the fourteenth aspect, the transceiver is further configured to send a type indication message to the access network device, where the type indication message is used to indicate that the type of the terminal device is the first type.

With reference to the fourteenth aspect, in a possible implementation manner of the fourteenth aspect, the first message further carries a first identifier, where the first identifier is an identifier of the first uplink data.

With reference to the fourteenth aspect, in a possible implementation manner of the fourteenth aspect, the first message does not carry first uplink data, and the transceiver module is further configured to:

With reference to the fourteenth aspect, in a possible implementation manner of the fourteenth aspect, the first message further carries the first uplink data.

With regard to the technical effects brought by the fourteenth aspect or the various embodiments of the fourteenth aspect, reference may be made to the introduction of the technical effects of the second aspect or the various embodiments of the second aspect, and details are not repeated.

In a fifteenth aspect, a ninth communication device is provided, for example, the third communication device as described above. The communication device comprises a processor and a transceiver for implementing the method as described in the third aspect or in various possible designs of the third aspect. Illustratively, the communication means is a chip provided in the communication device. Illustratively, the communication device is a network device. Wherein, the transceiver is implemented by an antenna, a feeder, a codec, etc. in the communication device, for example, or, if the communication device is a chip disposed in the communication device, the transceiver is, for example, a communication interface in the chip, and the communication interface is connected with a radio frequency transceiving component in the communication device to implement transceiving of information by the radio frequency transceiving component. Wherein the content of the first and second substances,

the transceiver is used for receiving energy information of terminal equipment, wherein the energy information is used for indicating the comprehensive energy state of the terminal equipment within a first time length or indicating the current energy state of the terminal equipment;

and the processor is used for sending a paging message to the terminal equipment according to the energy information.

With reference to the fifteenth aspect, in a possible implementation manner of the fifteenth aspect, the processor is configured to send a paging message to the terminal device according to the energy information by:

With regard to the technical effects brought by the embodiments of the fifteenth aspect or the fifteenth aspect, reference may be made to the introduction of the technical effects of the embodiments of the third aspect or the third aspect, and details are not repeated.

A sixteenth aspect provides a tenth communication device, for example the fourth communication device as described above. The communication device comprises a processor and a transceiver for implementing the method as described in the fourth aspect or in various possible designs of the fourth aspect. Illustratively, the communication means is a chip provided in the communication device. Illustratively, the communication device is a terminal device. Wherein, the transceiver is implemented by an antenna, a feeder, a codec, etc. in the communication device, for example, or, if the communication device is a chip disposed in the communication device, the transceiver is, for example, a communication interface in the chip, and the communication interface is connected with a radio frequency transceiving component in the communication device to implement transceiving of information by the radio frequency transceiving component. Wherein the content of the first and second substances,

the processor is configured to determine energy information of the terminal device, where the energy information is used to indicate a comprehensive energy state of the terminal device within a first duration, or is used to indicate a current energy state of the terminal device;

the transceiver is used for sending the energy information to network equipment.

With reference to the sixteenth aspect, in a possible implementation manner of the sixteenth aspect, the transceiver is further configured to receive a paging message from the network device.

With regard to the technical effects brought by the various embodiments of the sixteenth aspect or the sixteenth aspect, reference may be made to the introduction of the technical effects of the various embodiments of the fourth aspect or the fourth aspect, and details are not repeated.

A seventeenth aspect provides an eleventh communication device, for example, the fifth communication device as described above. The communication device comprises a processor and a transceiver for implementing the method as described in the fifth aspect or in various possible designs of the fifth aspect. Illustratively, the communication means is a chip provided in the communication device. Illustratively, the communication device is a network device. Wherein, the transceiver is implemented by an antenna, a feeder, a codec, etc. in the communication device, for example, or, if the communication device is a chip disposed in the communication device, the transceiver is, for example, a communication interface in the chip, and the communication interface is connected with a radio frequency transceiving component in the communication device to implement transceiving of information by the radio frequency transceiving component. Wherein the content of the first and second substances,

the transceiver is used for receiving a first message from a terminal device, wherein the first message is used for indicating that the energy state of the terminal device is a first state;

the processor is configured to determine not to send information to the terminal device.

With reference to the seventeenth aspect, in one possible embodiment of the seventeenth aspect,

the transceiver is further configured to receive a second message from the terminal device, where the second message is used to indicate that the energy status of the terminal device is a second status;

the processor is further configured to determine that information can be sent to the terminal device.

With reference to the seventeenth aspect, in a possible implementation manner of the seventeenth aspect, the transceiver is further configured to send a first threshold to the terminal device, where the first threshold is used to determine that an energy state of the terminal device is the first state or the second state.

With regard to the technical effects brought by the various embodiments of the seventeenth aspect or the seventeenth aspect, reference may be made to the introduction of the technical effects of the various embodiments of the fifth aspect or the fifth aspect, and the description is omitted for brevity.

Eighteenth, a twelfth communication device is provided, for example, the sixth communication device as described above. The communication device comprises a processor and a transceiver for implementing the methods described in the various possible designs of the sixth aspect or the sixth aspect described above. Illustratively, the communication means is a chip provided in the communication device. Illustratively, the communication device is a terminal device. Wherein, the transceiver is implemented by an antenna, a feeder, a codec, etc. in the communication device, for example, or, if the communication device is a chip disposed in the communication device, the transceiver is, for example, a communication interface in the chip, and the communication interface is connected with a radio frequency transceiving component in the communication device to implement transceiving of information by the radio frequency transceiving component. Wherein the content of the first and second substances,

the processor is used for determining that the energy state of the terminal equipment is a first state;

the transceiver is configured to send a first message to a network device, where the first message is used to indicate that an energy state of the terminal device is the first state.

With reference to the eighteenth aspect, in one possible implementation of the eighteenth aspect,

the processor is further configured to determine that the energy state of the terminal device is a second state;

the transceiver is further configured to send a second message to a network device, where the second message is used to indicate that the energy status of the terminal device is the second status.

the transceiver is further configured to receive a first threshold from the network device; or the like, or, alternatively,

the processor is further configured to determine the first threshold;

With regard to the technical effects brought by the eighteenth aspect or the various embodiments of the eighteenth aspect, reference may be made to the introduction of the technical effects of the various embodiments of the sixth aspect or the sixth aspect, which is not repeated herein.

In a nineteenth aspect, a thirteenth communications device is provided. The communication device may be the first communication device in the above method design. Illustratively, the communication device is a chip disposed in the access network equipment. The communication device includes: a memory for storing computer executable program code; and a processor coupled with the memory. Wherein the program code stored by the memory comprises instructions which, when executed by the processor, cause the thirteenth communication device to perform the method of the first aspect or any one of the possible implementations of the first aspect.

Wherein, the thirteenth communication means may further comprise a communication interface, which may be a transceiver in the access network device, for example, implemented by an antenna, a feeder, a codec, etc. in the communication means, or, if the thirteenth communication means is a chip disposed in the access network device, the communication interface may be an input/output interface of the chip, for example, an input/output pin, etc.

A twentieth aspect provides a fourteenth communications apparatus. The communication device may be the second communication device in the above method design. Illustratively, the communication device is a chip provided in the terminal equipment. The communication device includes: a memory for storing computer executable program code; and a processor coupled with the memory. Wherein the program code stored by the memory comprises instructions which, when executed by the processor, cause the fourteenth communication device to perform the method of the second aspect or any one of the possible embodiments of the second aspect.

Wherein, the fourteenth communication device may further include a communication interface, and the communication interface may be a transceiver in the terminal equipment, for example, implemented by an antenna, a feeder line, a codec, and the like in the communication device, or, if the fourteenth communication device is a chip disposed in the terminal equipment, the communication interface may be an input/output interface of the chip, for example, an input/output pin, and the like.

In a twenty-first aspect, a fifteenth communications apparatus is provided. The communication device may be the third communication device in the above method design. Illustratively, the communication device is a chip provided in the network device. The communication device includes: a memory for storing computer executable program code; and a processor coupled with the memory. Wherein the program code stored by the memory comprises instructions which, when executed by the processor, cause the fifteenth communication device to perform the method of the third aspect or any one of the possible embodiments of the third aspect.

Wherein, the fifteenth communication device may further include a communication interface, which may be a transceiver in the network equipment, for example, implemented by an antenna, a feeder, a codec, and the like in the communication device, or, if the fifteenth communication device is a chip disposed in the network equipment, the communication interface may be an input/output interface of the chip, for example, an input/output pin, and the like.

In a twenty-second aspect, a sixteenth communication device is provided. The communication device may be the fourth communication device in the above method design. Illustratively, the communication device is a chip provided in the terminal equipment. The communication device includes: a memory for storing computer executable program code; and a processor coupled with the memory. Wherein the program code stored by the memory comprises instructions which, when executed by the processor, cause the sixteenth communication device to perform the method of the fourth aspect or any one of the possible embodiments of the fourth aspect.

Wherein, the sixteenth communication device may further include a communication interface, which may be a transceiver in the terminal equipment, for example, implemented by an antenna, a feeder, a codec, etc. in the communication device, or, if the sixteenth communication device is a chip disposed in the terminal equipment, the communication interface may be an input/output interface of the chip, for example, an input/output pin, etc.

A twenty-third aspect provides a seventeenth communications device. The communication device may be the fifth communication device in the above method design. Illustratively, the communication device is a chip provided in the network device. The communication device includes: a memory for storing computer executable program code; and a processor coupled with the memory. Wherein the program code stored by the memory comprises instructions which, when executed by the processor, cause the seventeenth communication device to perform the method of any one of the possible embodiments of the fifth aspect or the fifth aspect described above.

Wherein, the seventeenth communication device may further include a communication interface, and the communication interface may be a transceiver in the network device, for example, implemented by an antenna, a feeder, a codec, and the like in the communication device, or, if the seventeenth communication device is a chip disposed in the network device, the communication interface may be an input/output interface of the chip, for example, an input/output pin, and the like.

A twenty-fourth aspect provides an eighteenth communication device. The communication device may be the sixth communication device in the above method design. Illustratively, the communication device is a chip provided in the terminal equipment. The communication device includes: a memory for storing computer executable program code; and a processor coupled with the memory. Wherein the program code stored by the memory comprises instructions which, when executed by the processor, cause the eighteenth communication device to perform the method of the sixth aspect or any one of the possible embodiments of the sixth aspect.

Wherein, the eighteenth kind of communication device may further include a communication interface, which may be a transceiver in the terminal equipment, for example, implemented by an antenna, a feeder, a codec, etc. in the communication device, or, if the eighteenth kind of communication device is a chip provided in the terminal equipment, the communication interface may be an input/output interface of the chip, for example, an input/output pin, etc.

A twenty-fifth aspect provides a first communication system, which may include the first communication apparatus of the seventh aspect, the seventh communication apparatus of the thirteenth aspect, or the thirteenth communication apparatus of the nineteenth aspect, and include the second communication apparatus of the eighth aspect, the eighth communication apparatus of the fourteenth aspect, or the fourteenth communication apparatus of the twentieth aspect.

A twenty-sixth aspect provides a second communication system, which may include the third communication apparatus of the ninth aspect, the ninth communication apparatus of the fifteenth aspect, or the fifteenth communication apparatus of the twentieth aspect, and include the fourth communication apparatus of the tenth aspect, the tenth communication apparatus of the sixteenth aspect, or the sixteenth communication apparatus of the twenty-second aspect.

A twenty-seventh aspect provides a third communication system, which may include the fifth communication apparatus of the eleventh aspect, the eleventh communication apparatus of the seventeenth aspect, or the seventeenth communication apparatus of the twenty-fourth aspect, and include the sixth communication apparatus of the twelfth aspect, the twelfth communication apparatus of the eighteenth aspect, or the eighteenth communication apparatus of the twenty-fourth aspect.

The first communication system, the second communication system and the third communication system may be the same communication system, or may be different communication systems, or any two of them may be the same communication system, and the other one may be a different communication system.

A twenty-eighth aspect provides a computer storage medium having stored therein instructions that, when run on a computer, cause the computer to perform the method as set forth in the above first aspect or any one of the possible designs of the first aspect.

A twenty-ninth aspect provides a computer storage medium having stored therein instructions that, when executed on a computer, cause the computer to perform the method as set forth in the second aspect or any one of the possible designs of the second aspect.

A thirty-first aspect provides a computer storage medium having stored therein instructions that, when run on a computer, cause the computer to perform the method as set forth in the third aspect or any one of the possible designs of the third aspect.

In a thirty-first aspect, there is provided a computer storage medium having stored therein instructions that, when run on a computer, cause the computer to perform the method of the fourth aspect or any one of the possible designs of the fourth aspect.

A thirty-second aspect provides a computer storage medium having stored therein instructions that, when run on a computer, cause the computer to perform the method as set forth in the fifth aspect or any one of the possible designs of the fifth aspect.

A thirty-third aspect provides a computer storage medium having stored therein instructions that, when run on a computer, cause the computer to perform the method as set forth in the sixth aspect or any one of the possible designs of the sixth aspect.

In a thirty-fourth aspect, there is provided a computer program product comprising instructions stored thereon, which when run on a computer, cause the computer to perform the method of the first aspect or any one of the possible designs of the first aspect.

A thirty-fifth aspect provides a computer program product comprising instructions stored thereon, which when run on a computer, cause the computer to perform the method as set forth in the second aspect or any one of the possible designs of the second aspect.

A thirty-sixth aspect provides a computer program product comprising instructions stored thereon which, when run on a computer, cause the computer to perform the method of the third aspect or any one of the possible designs of the third aspect.

A thirty-seventh aspect provides a computer program product comprising instructions stored thereon, which when run on a computer, cause the computer to perform the method of the fourth aspect or any one of the possible designs of the fourth aspect.

In a thirty-eighth aspect, there is provided a computer program product comprising instructions stored thereon, which when run on a computer, cause the computer to perform the method of the fifth aspect or any one of the possible designs of the fifth aspect.

In a thirty-ninth aspect, there is provided a computer program product comprising instructions stored thereon, which when run on a computer, cause the computer to perform the method of the sixth aspect or any one of the possible designs of the sixth aspect.

In the embodiment of the application, the terminal device can send the first message carrying the indication information to the access network device, and the access network device can store the first information corresponding to the first message or the first uplink data, so that the access network device can directly send the stored first information to the terminal device, the waiting process of the terminal device is reduced, and the terminal device is favorable for saving electricity.

Drawings

Fig. 1 is a flow chart of an EDT procedure in an LTE system;

FIG. 2 is a schematic diagram of the operation of a self-powered sensor;

fig. 3 is a schematic view of an application scenario according to an embodiment of the present application;

fig. 4 is a flowchart of a first communication method according to an embodiment of the present application;

fig. 5 is a flowchart of a second communication method provided in the embodiment of the present application;

fig. 6 is a flowchart of a third communication method provided in the embodiment of the present application;

fig. 7 is a schematic block diagram of a first access network device according to an embodiment of the present application;

fig. 8 is another schematic block diagram of a first access network device according to an embodiment of the present application;

fig. 9 is a schematic block diagram of a first terminal device according to an embodiment of the present application;

fig. 10 is another schematic block diagram of a first terminal device according to an embodiment of the present application;

fig. 11 is a schematic block diagram of a second network device provided in an embodiment of the present application;

fig. 12 is another schematic block diagram of a second network device according to an embodiment of the present application;

fig. 13 is a schematic block diagram of a second terminal device provided in an embodiment of the present application;

fig. 14 is another schematic block diagram of a second terminal device according to an embodiment of the present application;

fig. 15 is a schematic block diagram of a third network device provided in an embodiment of the present application;

fig. 16 is another schematic block diagram of a third network device provided in the embodiment of the present application;

fig. 17 is a schematic block diagram of a third terminal device provided in an embodiment of the present application;

fig. 18 is another schematic block diagram of a third terminal device provided in an embodiment of the present application;

fig. 19 is a schematic block diagram of a communication device provided in an embodiment of the present application;

fig. 20 is another schematic block diagram of a communication device provided by an embodiment of the present application;

fig. 21 is a further schematic block diagram of a communication device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.

Hereinafter, some terms in the embodiments of the present application are explained to facilitate understanding by those skilled in the art.

1) Terminal equipment, including devices that provide voice and/or data connectivity to a user, may include, for example, handheld devices with wireless connection capability or processing devices connected to wireless modems. The terminal device may communicate with a core network via a Radio Access Network (RAN), exchanging voice and/or data with the RAN. The terminal device may include a User Equipment (UE), a wireless terminal device, a mobile terminal device, a device-to-device communication (D2D) terminal device, a vehicle-to-all (V2X) terminal device, a machine-to-machine/machine-type communication (M2M/MTC) terminal device, an internet of things (IoT) terminal device, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile station), a remote station (remote station), an access point (access point, AP), a remote terminal (remote), an access terminal (access terminal), a user terminal (user terminal), a user agent (user), or user equipment (user equipment). For example, mobile telephones (or so-called "cellular" telephones), computers with mobile terminal equipment, portable, pocket, hand-held, computer-included mobile devices, and the like may be included. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like. Also included are constrained devices, such as devices that consume less power, or devices that have limited storage capabilities, or devices that have limited computing capabilities, etc. Examples of information sensing devices include bar codes, Radio Frequency Identification (RFID), sensors, Global Positioning Systems (GPS), laser scanners, and the like.

By way of example and not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable equipment can also be called wearable smart device or intelligent wearable equipment etc. is the general term of using wearable technique to carry out intelligent design, develop the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device includes full functionality, large size, and can implement full or partial functionality without relying on a smart phone, such as: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets, smart helmets, smart jewelry and the like for monitoring physical signs.

In the embodiment of the present application, the type of the terminal device may be a common type, where the common type may refer to a terminal device that obtains energy through charging, or refer to a terminal device that is not limited in energy. Or the type of terminal equipment may be a self-powered type that does not use batteries to supply power but relies on energy (e.g., solar, wind, electromagnetic, or thermal) from the surrounding environment to communicate. The terminal equipment is characterized by limited energy, uncontrollable energy arrival and short energy time.

The various terminal devices described above, if located on a vehicle (e.g., placed in or installed in the vehicle), may be considered to be vehicle-mounted terminal devices, which are also referred to as on-board units (OBUs), for example.

2) Network equipment, for example, including Access Network (AN) equipment, such as a base station (e.g., AN access point), may refer to equipment in AN access network that communicates with wireless terminal equipment over one or more cells over AN air interface, or access network equipment in one type of V2X technology is a Road Side Unit (RSU), for example. The base station may be configured to interconvert received air frames and Internet Protocol (IP) packets as a router between the terminal device and the rest of the access network, which may include an IP network. The RSU may be a fixed infrastructure entity supporting the V2X application and may exchange messages with other entities supporting the V2X application. The access network device may also coordinate attribute management for the air interface. For example, the access network device may include an evolved Node B (NodeB or eNB or e-NodeB) in a Long Term Evolution (LTE) system or an advanced long term evolution (LTE-a), or may also include a next generation Node B (gNB) in a New Radio (NR) system of a fifth generation mobile communication technology (5G), or may also include a Centralized Unit (CU) and a Distributed Unit (DU) in a Cloud access network (Cloud RAN) system, which is not limited in this embodiment.

Of course, the network device may also include a core network device, but since the technical solution provided in the embodiment of the present application mainly relates to an access network device, hereinafter, unless otherwise specified, the "network device" described hereinafter refers to the access network device.

3) A self-powered sensor (or self-powered type sensor), also referred to as a limited energy sensor or an energy harvesting sensor, is a sensor that relies on energy (e.g., solar, wind, electromagnetic, or thermal) from the surrounding environment for communication without using battery power. The sensor is characterized by limited energy, uncontrollable energy arrival and short energy-bearing time.

4) "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.

And, unless stated to the contrary, the embodiments of the present application refer to the ordinal numbers "first", "second", etc., for distinguishing a plurality of objects, and do not limit the sequence, timing, priority, or importance of the plurality of objects. For example, the first message and the second message are only used for distinguishing different signaling, and do not indicate the difference of the content, priority, transmission order, importance, or the like of the two kinds of information.

The term "stored" in the embodiments of the present application may be understood as that the nonvolatile memory stores the related information, and may also be understood as that the memory of the processor stores the related information. Such memory includes, but is not limited to, read-only memory (ROM), Random Access Memory (RAM), cache, buffer, or register, etc.

Having described some of the concepts related to the embodiments of the present application, the following describes features of the embodiments of the present application.

At present, aiming at the characteristic that the terminal equipment needs to establish the RRC connection even if sending a small amount of data, in order to reduce the steps of connection or release and the like needed by the terminal equipment for establishing the RRC connection and reduce the power consumption of data transmission, an EDT mechanism is introduced. Under the EDT mechanism, a terminal device in an RRC idle state (idle) or a terminal device in an RRC inactive state (inactive) is allowed to transmit a small amount of data through Msg3 in the random access process, and the transmission flow is ended after Msg4 in the random access process without entering an RRC connected state. Please refer to fig. 1, which is a flowchart illustrating an EDT procedure in an LTE system.

First, the terminal device sends an EDT dedicated random access preamble (random access preamble) sequence to the base station, and the base station receives the random access preamble sequence from the terminal device. Then, the base station sends a Random Access Response (RAR) to the terminal device, and the terminal device receives the RAR from the base station. Then, the user can use the device to perform the operation,

step 1, after receiving the RAR, the terminal device sends an RRC data early-transfer request (RRC early data request) message on an uplink grant (UL grant) indicated by the RAR, and the base station receives the RRC data early-transfer request message from the terminal device, where the RRC data early-transfer request message includes a Non-Access stratum (NAS) message and uplink data is carried in the NAS message. The RRC data early transfer request message may be regarded as Msg 3.

Step 2, the base station sends an initial UE information (initial UE message) message to a Mobility Management Entity (MME), and the MME receives the initial UE information message from the base station. The initial UE information message may be a non-access stratum (NAS) message, and the initial UE information message includes uplink data sent by the terminal device to the base station through the RRC data early-transmission request message.

And step 3, modifying the bearer (modification bearer) between the MME and a serving gateway (S-GW). During the process of modifying the load, the MME informs the S-GW that data is to be sent to the S-GW.

And step 4, the MME sends the received uplink data from the base station to the S-GW, and the S-GW receives the uplink data from the MME. The uplink data is the uplink data included in the initial UE information in step 2, that is, the uplink data sent by the terminal device to the base station through the RRC data early transmission request message.

And 5, if the downlink data of the terminal equipment reaches the S-GW at the moment, the S-GW sends the downlink data to the MME, and the MME receives the downlink data from the S-GW. Alternatively, if no downlink data of the terminal device arrives at the S-GW, the S-GW may send a message indicating whether there is more downlink data to the MME.

Step 6a, if downlink data is received from the S-GW, the MME transmits the downlink data to the base station by downlink NAS transport (DL NAS transport), and the base station receives the downlink data from the MME.

Step 6b, the MME may further indicate to the base station whether there is more downlink data, and if the MME indicates that there is more downlink data, the MME triggers the base station terminal device to send an RRC connection establishment indication (connection establishment indication) to initiate a procedure of establishing the RRC connection.

And step 7, the base station sends an RRC data early transmission completion (RRC early data complete) message to the terminal equipment, and the terminal equipment receives the RRC data early transmission completion message from the base station. The RRC data early transfer complete message may be regarded as Msg 4. If the base station receives the downlink data from the MME in step 6a, the RRC data early transfer complete message carries the downlink data. Or, if the base station does not receive the downlink data from the MME in step 6a, the RRC data early-transfer complete message may be a confirmation message of the RRC data early-transfer request message, for example, the RRC data early-transfer complete message may carry some information related to cell reselection performed by the terminal device in an idle state. After the terminal device sends the RRC data early-transmission request message, the terminal device blindly detects scheduling information of the RRC data early-transmission completion message in a corresponding channel, so as to receive the RRC data early-transmission completion message according to an indication of the scheduling information.

And step 8, releasing the S1 connection by the base station and the MME, and modifying the load by the MME and the S-GW.

In the process shown in fig. 1, after sending Msg3, the end device waits for Msg4 to be received until Msg4 is received. There is a self-powered sensor that relies on energy (e.g., solar, wind, electromagnetic, or thermal) from the surrounding environment for communication without using battery power. Reference is made to fig. 2, which is a schematic illustration of the operation of the self-powered sensor. The self-powered sensor is characterized by limited energy, uncontrollable energy arrival and short energy time. Therefore, when the self-powered sensor communicates, the communication may be interrupted at any time. If the self-powered sensor is performing an EDT process with a base station as a terminal device, the self-powered sensor may be depleted of power after sending Msg3, and thus unable to receive Msg4 from the base station. After the base station sends Msg4, if no response is received from the terminal device for a long time, the base station deletes the context of the terminal device, and if downlink data is sent to the terminal device through Msg4 before, the base station discards the downlink data. After the power of the self-powered sensor is restored, the self-powered sensor will resend Msg3 to the base station. Since the base station has deleted the context and other information of the terminal device, the base station needs to interact with the core network device again, for example, step 2, step 3, step 4, step 5 and step 6a in fig. 1 need to be executed again. The interaction time between the base station and the core network device is long, and the self-powered sensor needs to wait for a long time, and the process causes waste of electric quantity.

In view of this, the technical solutions of the embodiments of the present application are provided. In the embodiment of the application, the terminal device may send the first message carrying the indication information to the access network device, and the access network device may store the first information corresponding to the first message or the first uplink data, so that the access network device may directly send the stored first information to the terminal device, thereby reducing a waiting process of the terminal device. For example, the terminal device is a self-powered terminal device, the first message is Msg3, that is, the terminal device is exhausted after sending Msg3 to the access network device, and after power is restored, Msg3 is sent to the access network device again. The access network device may not delete the context (e.g., the first information) of the terminal device for the moment, and after receiving the Msg3 retransmitted by the terminal device, the access network device may directly send the stored first information to the terminal device, so that interaction with the core network device is not required to determine the first information, the time for acquiring the first information is reduced, the time for the terminal device to wait is also reduced, the energy consumption of the terminal device is reduced, and power saving is facilitated.

The technical solution provided in the embodiment of the present application may be applied to a fourth generation mobile communication technology (4G) 4G system, such as an LTE system, or may be applied to a 5G system, such as an NR system, or may also be applied to a next generation mobile communication system or other similar communication systems, which is not limited specifically.

A network architecture applied in the embodiment of the present application is described below, please refer to fig. 3.

Fig. 3 includes an access network device, a core network device, and a terminal device, where the terminal device is connected to the access network device, and the access network device is connected to the core network device. Of course, the number of terminal devices in fig. 3 is only an example, and in practical applications, one access network device may provide services for a plurality of terminal devices. The core network device, the access network device, and each of a part of the plurality of terminal devices or all of the plurality of terminal devices in fig. 3 may implement the technical solution provided by the embodiment of the present application. In addition, the terminal device in fig. 3 is a mobile phone as an example, but is not limited to this in practical application.

The access network device in fig. 3 may be, for example, a base station, or may also be a RSU or the like. The base station may correspond to different devices in different systems, for example, the base station may correspond to an eNB in a 4G system, and may correspond to a gNB in a 5G system. Of course, the technical solution provided in the embodiment of the present application may also be applied to a future mobile communication system, and therefore the access network device in fig. 3 may also correspond to an access network device in a future mobile communication system.

The core network devices in fig. 3 are, for example, an MME and an S-GW, or an access and mobility management function (AMF), and when the applied communication system or scenario is different, the core network devices may also be different.

The technical scheme provided by the embodiment of the application is described below with reference to the accompanying drawings.

The embodiment of the present application provides a first communication method, please refer to fig. 4, which is a flowchart of the method. In the following description, the method is applied to the network architecture shown in fig. 3 as an example. Further, the method may be performed by two communication devices, e.g. a first communication device and a second communication device, or it is also possible that the method is performed by three communication devices, e.g. a first communication device, a second communication device and a third communication device. The first communication device, the second communication device, or the third communication device may be an access network device or a communication device capable of supporting the access network device to implement the functions required by the method, or may be a core network device or a communication device capable of supporting the core network device to implement the functions required by the method, or may be a terminal device or a communication device capable of supporting the terminal device to implement the functions required by the method, or may be other communication devices, such as a chip system. The implementation manners of the first communication device, the second communication device, or the third communication device are not limited, for example, the first communication device may be an access network device, the second communication device is a terminal device, the third communication device is a core network device, or the first communication device may be an access network device, the second communication device is a chip system capable of supporting the terminal device to implement the method, and the third communication device is a core network device, and so on. The access network device is, for example, a base station.

For convenience of introduction, in the following, the method is performed by core network equipment, access network equipment and terminal equipment as an example, that is, the first communication device is access network equipment, the second communication device is terminal equipment, and the third communication device is core network equipment as an example. Or, in the following, the method is taken as an example executed by an access network device and a terminal device, that is, the first communication device is an access network device and the second communication device is a terminal device. Since this embodiment is applied to the network architecture shown in fig. 3 as an example, the core network device described below may be a core network device in the network architecture shown in fig. 3, the access network device described below may be an access network device in the network architecture shown in fig. 3, and the terminal device described below may be a terminal device in the network architecture shown in fig. 3. In addition, the terminal device in the embodiment of the present application may be a self-powered terminal device as described above, or may also be another type of terminal device, for example, it may also be a common terminal device (that is, it is not necessary to obtain energy from the environment, but may obtain sufficient energy through charging or the like, and during the communication, communication may be rarely interrupted due to energy exhaustion).

It should be noted that, in the embodiment of the present application, the "third message" and the third message in the random access procedure (i.e., Msg3) are not equivalent or are not the same concept. If a third message in a random access procedure is to be described herein, it will be described as "third message in random access procedure" or "Msg 3" or "Msg 3" or the like, and if a third message is to be described herein, it will be described as "third message". Similarly, in the embodiment of the present application, the "fourth message" and the fourth message in the random access procedure (i.e., Msg4) are not equivalent or are not the same concept. If the fourth message in the random access procedure is to be described herein, it will be described as "fourth message in the random access procedure" or "Msg 4" or "Msg 4" or the like, and if the fourth message is to be described herein, it will be described as "fourth message".

S41, the terminal device sends a third message to the access network device, and the access network device receives the third message from the terminal device.

If the application scenario of the embodiment shown in fig. 4 is an EDT scenario, the third message is, for example, Msg3 in the random access procedure. Alternatively, the application scenario of the embodiment shown in fig. 4 may also be other scenarios, for example, the application scenario may also be applicable to a terminal device in an RRC connected state, and then the third message is, for example, an RRC message, or may also be another type of message.

The third message may carry the first uplink data. For example, if the third message is Msg3, the first uplink data is the early-transfer data sent to the access network device in the EDT mode, or if the third message is a message that the terminal device is in the RRC connected state, the first uplink data may be the uplink data normally sent by the terminal device to the access network device.

In addition, the third message may also carry a first identifier, where the first identifier is, for example, an identifier of the first uplink data, or may also be an identifier of the third message. The access network device may also store the first identifier after receiving the third message. The third message may also carry the identifier of the terminal device, or, if there is another interaction process between the terminal device and the access network device, the terminal device may also send the identifier of the terminal device to the access network device through the previous interaction process, or the access network device may also obtain the identifier of the terminal device from the core network device. After the access network device obtains the identifier of the terminal device, the identifier of the terminal device may also be stored.

As an optional implementation, the terminal device may further send the type information of the terminal device to the access network device. For example, the terminal device sends a type indication message to the access network device, where the type indication message indicates that the type of the terminal device is the first type. The access network equipment receives the type indication message from the terminal equipment, and the type of the terminal equipment can be determined to be the first type according to the type indication message. The first type may be, for example, a self-powered type, an energy-limited type, or may be another type, such as a general type, for example, the type of the terminal device may be considered as the first type as long as the access network device is required to store the context for a longer time, and is not limited in particular.

For example, the type indication message and the third message may be the same message, that is, the terminal device may send the type information of the terminal device to the access network device through the third message, thereby contributing to saving signaling overhead. Alternatively, the type indication message and the third message may also be different messages, for example, the type indication message is a message in a procedure in which the terminal device registers with the access network device (or with the core network device), such as a registration message, or may also be other messages in the registration procedure, or the type indication message may also be other messages, which is not limited specifically.

Wherein S41 is an optional step and is not necessarily performed.

And S42, the access network equipment sends a sixth message to the terminal equipment.

After receiving the third message, the access network device may determine response information, for example, referred to as first information, and the access network device carries the first information in a sixth message and sends the sixth message to the terminal device. For example, the first information may comprise data, or comprise signaling, or comprise both data and signaling. The first information may be response information of the first uplink data, or may also be response information of the third message. If the first information is response information of the third message, it may be considered that the first information corresponds to the third message. Specifically, the first information may correspond to the first uplink data, and in this case, the first information may also be considered as response information of the first uplink data; alternatively, the first information may correspond to other information than the first uplink data included in the first message, in which case the first information cannot be considered as response information of the first uplink data; alternatively, the first information may correspond to the first uplink data included in the first message and to other information than the first uplink data included in the first message, and in this case, the first information may also be considered as response information of the first uplink data (of course, the first information is also response information of other information than the first uplink data included in the first message).

After the access network device sends the first information to the terminal device, if a response message from the terminal device is not received (the response message corresponds to the sixth message), the access network device may store the first information. For example, the access network device may store the first information if the access network device does not receive the response message from the terminal device within the first duration. The first time duration is, for example, the time duration in which the access network device should receive the response message from the terminal device in the normal case. The first time length may be self-configured by the access network device, or configured by the core network device, or may be specified by a protocol. For example, if the access network device receives the type indication message and determines that the type of the terminal device is the first type, the access network device may store the first information if the access network device does not receive a response message from the terminal device. The step of determining, by the access network device, the type of the terminal device may occur after the access network device does not receive the response message from the terminal device and before the access network device stores the first information, or may occur before the access network device does not receive the response message from the terminal device, for example, the terminal device may send the type information of the terminal device to the access network device during a registration procedure or when sending a third message, and the access network device may determine the type of the terminal device after receiving the type information of the terminal device. Or, the terminal device may not send the type indication message to the access network device, and the access network device may store the first information for any type of terminal device.

In addition, for the access network device, it may interact with a plurality of terminal devices, receive information from a plurality of terminal devices, and store information corresponding to different terminal devices. Therefore, in order to facilitate subsequent searching of the first information, the access network device may store the corresponding relationship between the first information and the identifier of the terminal device, so that the first information may be found according to the identifier of the terminal device.

For example, the third message may be Msg3, e.g., an RRC data early transfer request message in step 1 of fig. 1, the sixth message may be Msg4, e.g., an RRC data early transfer complete message in step 7 of fig. 1, and the first message may include downlink data from the core network device.

Alternatively, if the terminal device is in the RRC connected state, the first information is, for example, an Acknowledgement (ACK) or a Negative Acknowledgement (NACK) corresponding to the first uplink data, although other information is also possible. The third message is, for example, an RRC message, and the sixth message is, for example, also an RRC message, or the third message is an RRC message and the sixth message is a message of another type, or the sixth message is an RRC message and the third message is a message of another type, or the third message and the sixth message are both messages of another type other than an RRC message, and the type of the third message and the type of the sixth message may be the same or different.

If the third message is Msg3, the access network device may need to determine the first message by interacting with the core network device. For example, the access network device and the core network device may perform step 2, step 3, step 4, step 5 and step 6a in the flow shown in fig. 1 to determine the first information.

If the terminal device is in the RRC connected state, the access network device may determine the first information by itself without interacting with the core network device, or the access network device may determine the first information by interacting with the core network device. The details are not intended to be limiting.

In fig. 4, it is indicated by an "x" that the terminal device does not receive the sixth message after the access network device sends the sixth message to the terminal device. This may be the case, for example, if the terminal device is a self-powered terminal device, and after sending the third message, the terminal device is exhausted and therefore cannot receive the sixth message. Or, the terminal device is in the RRC connected state, and after sending the third message, the terminal device may not receive the sixth message due to factors such as poor channel quality. Of course, there may be other reasons why the terminal device does not receive the sixth message, and the embodiment of the present application is not limited to why the terminal device does not receive the sixth message at all.

S43, the terminal device sends a first message to the access network device, and the access network device receives the first message from the terminal device. The first message carries indication information, where the indication information is used to indicate that first uplink data has been sent, and the first message also carries an identifier of the terminal device.

Since the terminal device does not receive the sixth message, it cannot be confirmed for the terminal device whether the access network device correctly receives the first uplink data. Therefore, the terminal device may send the first message to the access network device to ensure that the access network device can obtain the first uplink data. It should be understood that the first message is the third message retransmitted by the terminal device, that is, the terminal device does not receive the sixth message after transmitting the third message, so that the terminal device retransmits the third message to the access network device, and the retransmitted third message is referred to as the first message. If the third message is Msg3, the first message may also be Msg3, or if the third message is a message that the terminal device is in an RRC connected state, the first message may also be a message of the same type as the third message, for example, the third message and the first message are both RRC messages, or the first message may also be a message of a different type from the third message, for example, the first message is an RRC message, the third message is a message of another type, or the third message is an RRC message, and the first message is a message of another type.

The first message may carry indication information to indicate that the first uplink data has been sent, and the first message may also carry an identifier of the terminal device. After receiving the first message, the network device may determine the first uplink data according to the identifier of the terminal device, and may determine that the first uplink data has been sent according to the indication information. The identifier of the terminal device is, for example, an identity number (ID) of the terminal device, or may also be other information that can be used to uniquely identify the terminal device, such as a physical address of the terminal device, and the specific implementation is not limited.

For the terminal device, before sending the first message to the access network device, only one piece of uplink data, for example, the first uplink data, may be sent to the access network device, and no other uplink data is sent to the access network device, so that the access network device may determine the first uplink data according to the identifier of the terminal device. For example, before the terminal device sends the first message to the access network device, only one message, for example, a third message, is sent to the access network device, where the third message carries the first uplink data and does not carry other uplink data, and the access network device may determine the first uplink data according to the identifier of the terminal device; or, before sending the first message to the access network device, the terminal device sends a plurality of messages to the access network device, for example, the plurality of messages includes a third message, none of the plurality of messages except the third message carries uplink data, the third message carries the first uplink data, and does not carry other uplink data, and the access network device may determine the first uplink data according to the identifier of the terminal device.

However, it is also possible that the terminal device sends a plurality of messages (including a third message) to the access network device before sending the first message to the access network device, where the messages except the third message also carry uplink data, or that the terminal device sends only one message, for example, the third message, to the network device before sending the first message to the access network device, but the third message includes other uplink data besides the first uplink data, and then the access network device may not determine which uplink data the first uplink data is based only on the identifier of the terminal device. In view of this, as an optional manner, the first message may further carry a first identifier, where the first identifier is, for example, an identifier of the first uplink data, or may also be an identifier of the third message, so that after the access network device receives the first message, according to the first identifier and the identifier of the terminal device, it may be determined which uplink data of which terminal device the first uplink data corresponds to. In addition, S42 describes that the access network device may store the first information, and if it is considered that the access network device may receive multiple messages from one terminal device and may also store multiple pieces of information corresponding to one terminal device, the access network device may specifically store the first information, the first identifier, and the identifier of the terminal device for facilitating subsequent searching of the first information and preventing confusion of different information, so that the access network device may search the first information according to the identifier of the terminal device and the first identifier.

As described above, the third message may carry the first uplink data, and the first message is the retransmitted third message, so that the first message may carry the first uplink data or may not carry the first uplink data.

In addition, if the terminal device does not have a cell change after sending the third message to the access network device and before sending the first message to the access network device, that is, the terminal device always resides in the same cell after sending the third message to the access network device and before sending the first message to the access network device, the access network devices in S41 to S43 are the same access network device, and are the access network devices corresponding to the cell where the terminal device resides. Or, if the terminal device has a cell change after sending the third message to the access network device and before sending the first message to the access network device, that is, the terminal device has different resident cells after sending the third message to the access network device and before sending the first message to the access network device, then if the resident cells before and after the terminal device correspond to the same access network device, the access network devices in S41-S43 are the same access network device; on the other hand, if the cells in which the terminal device resides before and after correspond to different access network devices, the access network devices described in S41 and S42 may be different access network devices from the access network device described in S43, in which case, the access network device in S43 may be referred to as a target access network device, and the access network devices in S41 and S42 may be referred to as source access network devices.

Then, if the access network device in S43 is the target access network device, the target access network device may send the first message to the source access network device after receiving the first message, and the source access network device may receive the first message from the target access network device.

And S44, the access network equipment determines whether the first information corresponding to the first message or the first uplink data is stored or not according to the identifier of the terminal equipment.

If the cells where the terminal device resides before and after correspond to the same access network device, the access network devices in S41-S44 are the same access network device; if the cells in which the terminal device resides before and after correspond to different access network devices, the access network device in S41, S42, and S43 is the source access network device, and the access network device in S43 is the target access network device, that is, the target access network device sends the first message to the source access network device, and the source access network device performs S44.

After receiving the first message, the access network device may determine that the first uplink data has been sent according to the indication information, and may query whether the first information corresponding to the identifier of the terminal device is stored. That is to say, the first information corresponding to the first message or the first uplink data is to be searched, specifically, the first information corresponding to the identifier of the terminal device is to be searched. Or, if the access network device stores the identifier of the terminal device and the corresponding relationship between the first identifier and the first information, the first message may further carry the first identifier (or, if the third message carries the first identifier, the first message may carry the first identifier), the access network device determines, according to the identifier of the terminal device, whether the first information corresponding to the first message or the first uplink data is stored, specifically, the access network device queries whether the first information corresponding to the identifier of the terminal device and the first identifier is stored, that is, to search for the first information corresponding to the first message or the first uplink data, specifically, to search for the first information corresponding to the identifier of the terminal device and the first identifier.

S45, when the first information is determined to be stored, the access network equipment sends a second message to the terminal equipment, and the terminal equipment receives the second message from the access network equipment, wherein the second message carries the first information.

If the first information is stored, the access network device may directly transmit the first information to the terminal device, so that the terminal device may obtain the first information. For example, if the first message is Msg3, the second message may be Msg4, or if the first message is a message in which the terminal device is in an RRC connected state, the second message may also be a message of the same type as the first message, for example, both the first message and the second message are RRC messages, or the second message may also be a message of a different type from the first message, for example, the first message is an RRC message, the second message is a message of another type, or the second message is an RRC message, and the first message is a message of another type.

Take the example where the first message is Msg3 and the second message is Msg 4. For example, the terminal device runs out of power after sending Msg3 to the access network device and does not receive Msg4 from the access network device. The end device may resend Msg3 to the access network device after power is restored. After the access network device sends Msg4 to the terminal device, if the response message from the terminal device is not received within the first duration, the first information of the terminal device may be temporarily deleted, where the first information includes, for example, the context of the terminal device, or the context of the terminal device and the downlink data to be transmitted to the terminal device. Then, after the access network device receives the Msg3 retransmitted by the terminal device, the access network device may directly send the stored first information to the terminal device, so that interaction with the core network device is not required to determine the first information, the time for acquiring the first information is reduced, and the waiting time of the terminal device is also reduced, thereby reducing the energy consumption of the terminal device and facilitating the implementation of power saving of the terminal device.

Or, take the terminal device in the RRC connected state as an example. If the terminal device is powered off according to the current cellular communication technology, the network side deletes all contexts of the terminal device and data that is not completely transmitted, and when the terminal device is powered on, the terminal device and the network device resume the RRC connection to continue the previous transmission process. This mechanism is not suitable for the self-powered sensor, because the self-powered sensor consumes much power during the RRC connection re-establishment process with the network device, and when the RRC connection is established, the power of the self-powered sensor may be exhausted, which results in that data cannot be transmitted between the self-powered sensor and the base station all the time. In this embodiment, after the access network device sends the sixth message to the terminal device, if the response message from the terminal device is not received within the first duration, the access network device may store the first information, where the first information may include the context of the terminal device, or include the context of the terminal device and downlink data that is not completely transmitted. Therefore, after the terminal equipment is powered on, the access network equipment can directly send the first message to the network equipment without reestablishing RRC connection with the network equipment, so that the energy consumption of the terminal equipment is reduced, and the time for the terminal equipment to obtain the first information again is also reduced.

If the cells where the terminal device resides before and after correspond to the same access network device, the access network devices in S41-S45 are the same access network device; and if the cells in which the terminal device resides front and back correspond to different access network devices, the access network devices described in S41, S42, and S43 are source access network devices, and the access network devices described in S43 and S45 are target access network devices. That is, the target access network device sends the first message to the source access network device, the source access network device executes S44, the source access network device sends the first message to the target access network device, and the target access network device sends the second message to the terminal device. Or, if the cells where the terminal device resides in front and behind correspond to different access network devices, it may also be considered that the access network device described in S41, S42, S43, and S45 is a source access network device, and the access network device described in S43 is a target access network device, in this case, the access network device in S45 sends the second message to the terminal device, which may be understood that the source access network device sends the second message to the target access network device, and then the target access network device forwards the second message to the terminal device, so that the terminal device receives the second message from the source access network device and forwarded by the target access network device.

S45 describes a case where the access network device (or the source access network device) stores the first information, but it is also possible that the access network device (or the source access network device) does not store the first information, or the access network device (or the source access network device) fails to query although storing the first information, or the access network device (or the source access network device) loses the stored first information, or the access network device (or the source access network device) stores the first information, but does not receive the first message from the terminal device when storing the second duration, and then the access network device discards the first information, and so on, in these cases, the access network device needs to re-determine the first information. The manner in which the access network device determines the first information is related to whether the first message carries the first uplink data, which is described below.

1. The first message does not carry the first uplink data.

In this case, if the access network device does not inquire the first information, the access network device needs to obtain the first uplink data from the terminal device again, so as to determine the first information. For example, the access network device sends a fourth message to the terminal device, where the fourth message is used to request to resend the first uplink data. If the access network device used for determining the process of the first information is the source access network device, the source access network device may send the fourth message to the target access network device, and the target access network device forwards the fourth message to the terminal device. After receiving the fourth message, the terminal device may send the first uplink data to the access network device again. If the access network device used for determining the first information process is the source access network device, the terminal device sends the first uplink data to the target access network device, and the target access network device forwards the first uplink data to the source access network device. E.g., the first message (or third message) is Msg3, the end device may also continue to send the first upstream data to the access network device via Msg 3. Or, for example, the terminal device is in an RRC connected state, and the first message (or the third message) is an RRC message, the terminal device may further continue to send the first uplink data to the access network device through the RRC message. After receiving the first uplink data from the terminal device, the access network device may determine the first information according to the first uplink data. And if the target access network equipment receives the first uplink data from the terminal equipment, the target access network equipment forwards the first uplink data to the access network equipment. After determining the first information, the access network device may send the first information to the terminal device, for example, the access network device sends a seventh message to the terminal device, where the seventh message carries the first information. And if the source access network equipment determines the first information, the source access network equipment sends the first information to the target access network equipment, and the target access network equipment sends a seventh message to the terminal equipment. For example, if the first message (or third message) is Msg3, then the seventh message may be Msg4, or if the first message (or third message) is an RRC message, then the seventh message may be an RRC message.

There may be several situations in which the access network device does not query the first information. For example, the access network device may not store the first information due to a failure or other reason; or the access network equipment performs the operation of storing the first information, but the storage is not successful; alternatively, the access network device stores the first information and the storage is successful, but since the access network device does not receive the first message for a long time, for example, the access network device does not receive the first message within the second time period, the access network device may delete the stored first information in order to make the storage space in the access network device free for storing other information. The second duration may be configured by the access network device or the core network device, or may be specified by a protocol. Of course, there may be other situations, in addition to those listed above, that result in the access network device not querying the first information.

The access network device determines the first information, possibly in different ways.

For example, the first message (or the third message) is Msg3, that is, the first upstream data is early-pass data sent through the EDT mechanism. The access network device may then determine the first information by interacting with the core network device. For example, the access network device sends the first uplink data to the core network device, the core network device may perform corresponding processing after receiving the first uplink data, so as to determine the first information, and the core network device sends the first information to the access network device, so that the access network device determines the first information. If the access network device used in the process of determining the first information is the source access network device, the access network device described herein may be the source access network device. For example, the first information includes downlink data to be transmitted to the terminal device.

Alternatively, the terminal device is in the RRC connected state, for example, the first message (or the third message) is an RRC message or other types of messages, and it is understood that the first uplink data is data that the terminal device normally sends to the network device when in the RRC connected state. The access network device may then determine the first information by interacting with the core network device. For example, the access network device sends the first uplink data to the core network device, the core network device may perform corresponding processing after receiving the first uplink data, so as to determine the first information, and the core network device sends the first information to the access network device, so that the access network device determines the first information. Alternatively, the access network device may directly determine the first information without interacting with the core network device. If the access network device used in the process of determining the first information is the source access network device, the access network device described herein may be the source access network device.

In this case, the first message does not need to carry too much information, and especially if the access network device inquires the first information corresponding to the indication information, the first message helps to save signaling overhead.

2. The first message carries first uplink data.

In this case, if the access network device does not inquire the first information, the access network device does not need to acquire the first uplink data from the terminal device, but may re-determine the first information according to the first uplink data carried in the first message. By the method, interaction between the access network equipment and the terminal equipment is reduced, time for the access network equipment to determine the first information again is also reduced, waiting time of the terminal equipment is reduced, and power saving of the terminal equipment is facilitated. If the access network device used in the process of determining the first information is the source access network device, the access network device described herein may be the source access network device.

After determining the first information, the access network device may send the first information to the terminal device, for example, the access network device sends a seventh message to the terminal device, where the seventh message carries the first information. If the first information is determined by the source access network device, the source access network device may send the first information to the target access network device, and then send the first information to the terminal device through the target access network device, so that the terminal device receives the first information from the source access network device, which is forwarded by the target access network device. For example, if the first message (or third message) is Msg3, then the seventh message may be Msg4, or if the first message (or third message) is an RRC message, then the seventh message may be an RRC message.

With regard to the manner in which the access network device determines the first information, reference may be made to the foregoing description.

In the embodiment of the application, the terminal device may send the first message carrying the indication information to the access network device, and the access network device may store the first information corresponding to the first message or the first uplink data, so that the access network device may directly send the stored first information to the terminal device, thereby reducing a waiting process of the terminal device and facilitating the terminal device to save power.

The foregoing describes EDT-related procedures, and in addition to this, for self-powered types of terminal equipment, there is a need to take into account problems that may arise during paging. The paging process is a process in which the network device finds the terminal device when there is a downlink service to be sent to the terminal device. In order to ensure that the service of the terminal device can reach the terminal device, the terminal device in the RRC inactive state or the RRC idle state may periodically detect the paging channel, and if an Identity (ID) of the terminal device is found in the detected paging message, it indicates that the network device is calling the terminal device, and the terminal device may perform an operation of establishing an RRC connection with the network device. It should be noted that the terminal device detects the paging channel and performs the operation of establishing the RRC connection, which requires energy. In addition, paging is divided into core network device triggered paging (CN paging) and access network device triggered paging (RNA paging). The CN paging is aimed at the terminal equipment in an RRC idle state, and the RNA paging is aimed at the terminal equipment in an RRC non-activated state.

The current paging scheme does not consider the problem of the electric quantity of the terminal equipment, and the terminal equipment is paged as long as downlink data to be sent to the terminal equipment arrives. Then, if the terminal device is in a power-off state when paging the terminal device, the terminal device cannot receive the paging message, and the network device cannot call the terminal device, which results in waste of network resources. Moreover, since the network device cannot call the terminal device, the terminal device may be unregistered, so that the terminal device has to be registered again when power is supplied, which also causes energy consumption of the terminal device.

In view of this, the present application provides a second communication method. In the method, the network equipment can determine whether to initiate paging to the terminal equipment according to the energy condition of the terminal equipment, so that the network equipment can call the terminal equipment when the terminal equipment is powered on as much as possible, the waste of network resources is reduced, and the possibility that the terminal equipment needs to be registered again is also reduced.

Please refer to fig. 5, which is a flowchart of the method. In the following description, the method is applied to the network architecture shown in fig. 3 as an example. In addition, the method may be performed by two communication devices, e.g. a first communication device and a second communication device. The first communication device or the second communication device may be an access network device or a communication device capable of supporting the access network device to implement the functions required by the method, or may be a core network device or a communication device capable of supporting the core network device to implement the functions required by the method, or may be a terminal device or a communication device capable of supporting the terminal device to implement the functions required by the method, or of course, may also be another communication device, such as a chip system. For example, the first communication device may be an access network device, the second communication device may be a terminal device, or the first communication device may be a core network device, the second communication device may be a terminal device, or the first communication device may be an access network device, and the second communication device may support a chip system for the terminal device to implement the method, and so on. The access network device is, for example, a base station.

For convenience of introduction, in the following, the method is performed by a network device and a terminal device as an example, that is, the first communication apparatus is a network device and the second communication apparatus is a terminal device as an example. The network device may be an access network device or a core network device. Since this embodiment is applied to the network architecture shown in fig. 3 as an example, the core network device described below may be a core network device in the network architecture shown in fig. 3, the access network device described below may be an access network device in the network architecture shown in fig. 3, and the terminal device described below may be a terminal device in the network architecture shown in fig. 3. In addition, the terminal device in the embodiment of the present application may be a self-powered terminal device as described above, or may also be another type of terminal device, for example, it may also be a common terminal device (that is, it is not necessary to obtain energy from the environment, but may obtain sufficient energy through charging or the like, and during the communication, communication may be rarely interrupted due to energy exhaustion).

S51, the network device sends a request message to the terminal device, the terminal device receives the request message from the network device, and the request message is used for requesting the energy information of the terminal device.

For example, the network device may actively request energy information of the terminal device. If the network device is an access network device, the access network device may directly send a request message to the terminal device. Or, if the network device is a core network device, the core network device may send a request message to the access network device, so as to forward the request message to the terminal device through the access network device.

As an optional implementation manner, the terminal device may further send type information of the terminal device to the network device, for example, the terminal device sends a type indication message to the network device, where the type indication message indicates that the type of the terminal device is the first type. The network equipment receives the type indication message from the terminal equipment, and the type of the terminal equipment can be determined to be the first type according to the type indication message. The first type may be, for example, a self-powered type, or may be another type, such as a general type, without limitation. The step of sending the type information to the network device by the terminal device, for example, occurs before S51, and if the access network device determines that the type of the terminal device is the first type, the access network device may request the terminal device for the energy information of the terminal device, so that it may try to initiate paging to the terminal device when the terminal device is powered on.

The request message may be, for example, a Radio Resource Control (RRC) message, a medium access control element (MAC CE), or other messages.

S52, the terminal device determines energy information of the terminal device, wherein the energy information is used for indicating the comprehensive energy state of the terminal device in a first time length or indicating the current energy state of the terminal device.

Of course, S51 is only an optional step, that is, the network device may not need to actively request the energy information of the terminal device, and the terminal device may actively determine the energy information of the terminal device and send the energy information to the network device. For example, the terminal device may periodically determine the energy information of the terminal device, or determine the energy information of the terminal device when a certain trigger condition is met, and the specific trigger condition is not limited.

The energy information may indicate a composite energy state of the terminal device within the first duration or may indicate a current energy state of the terminal device. The "current" may be a time when the terminal device determines the energy information.

The energy information may include an energy value at which the terminal device is currently if the energy information indicates that the terminal device is currently in an energy state.

If the energy information indicates the integrated energy state of the terminal device within the first duration, the energy information may include one or any combination of the following: the method comprises the steps of obtaining a plurality of energy values of the terminal equipment in the first time length, probability distribution information of the energy values of the terminal equipment in the first time length, an average value of the energy values of the terminal equipment in the first time length, or the time length that the energy value of the terminal equipment is larger than or equal to a first threshold in the first time length. For example, the energy information includes only a plurality of energy values of the terminal device in the first time period, or the energy information includes only probability distribution information of the energy values of the terminal device in the first time period, or the energy information includes only an average value of the energy values of the terminal device in the first time period, or the energy information includes only a time period in which the energy value of the terminal device is greater than or equal to a first threshold in the first time period, or the energy information includes a plurality of energy values of the terminal device in the first time period and an average value of the energy values of the terminal device in the first time period, or the energy information includes a plurality of energy values of the terminal device in the first time period, probability distribution information of the energy values of the terminal device in the first time period, and an average value of the energy values of the terminal device in the first time period, or the energy information includes a plurality of energy values of the terminal device in the first time period, the probability distribution information of the energy value of the terminal device in the first time length, the average value of the energy value of the terminal device in the first time length, the time length that the energy value of the terminal device is larger than or equal to the first threshold in the first time length, and the like. There is no limitation as to which items the energy information includes as above. Alternatively, the energy information may include other information besides one or more of the above, or the energy information does not include any of the above, but includes other information as long as the energy information can indicate the integrated energy state of the terminal device in the first duration.

For example, the first duration may be 1 hour, or 1 day, or 1 week, or one or more paging cycles, etc., and the first duration may be configured by the network device or may also be specified by a protocol. Moreover, if the energy information indicates the energy state of the terminal device within the first duration, the first duration may be a fixed certain period of time, for example, the terminal device determines the energy information of the terminal device at the first time, and the first duration is not related to the first time but is a specific certain period of time. For example, the first time is 10:00:00 and the first time is 08:00:00 to 09:00: 00. Alternatively, the end time of the first duration may be the first time minus the offset. For example, the first time is 10:00:00, the offset is 30 minutes, and the energy information indicates the energy status of the terminal device within a first time period, where the first time period is 1 hour, and the first time period is 08:30:00 to 09:30: 00. And if the offset is 0, the end time corresponding to the first duration is the first time. For example, the first time is 10:00:00, and the energy information indicates the energy status of the terminal device within a first time period, where the first time period is 1 hour, the first time period may be 09:00:00 to 10:00: 00.

If the energy information includes a plurality of energy values of the terminal device in the first duration, then, for example, it is specified that the terminal device samples in the first duration according to the first step length, that is, the energy information may include energy values of the terminal device in every first step length in the first duration, and may also include energy values of the terminal device at the start time of the first duration. The first step length may be expressed as a specific time length, for example, 10 minutes, or may be expressed as percentage information, for example, 10%, which means that sampling is performed every 10% of the first time length from the start time of the first time length. For example, the first duration is the time period of 09:00:00 to 10:00:00, and the first step size is 20 minutes, the energy information may include the energy value of the terminal device at 09:00:00, the energy value of the terminal device at 09:20:00, the energy value of the terminal device at 09:40:00, and the energy value of the terminal device at 10:00: 00. Or, for example, the first duration is 09:00:00 to 10:00:00, and the first step size is 25% of a minute, the energy information may include an energy value of the terminal device at 09:00:00, an energy value of the terminal device at 09:15:00, an energy value of the terminal device at 09:30:00, an energy value of the terminal device at 09:45:00, and an energy value of the terminal device at 10:00: 00. Of course, the first step size is only an example, and the actual first step size may be configured by the network device or specified by the protocol. If the first step size is smaller, the more the energy information can reflect the actual energy value of the terminal device.

Or, if the energy information includes a plurality of energy values of the terminal device in the first duration, for example, it is specified that the energy information includes N energy values of the terminal device in the first duration, the terminal device may arbitrarily select N times in the first duration, and take the N energy values of the N times as the N energy values included in the energy information. N is a positive integer. N may be configured by the network device or specified by a protocol.

Or, since the first duration is the past time period, the energy value of the terminal device collected by the terminal device in the first duration is already a known quantity, and the terminal device only needs to use all the energy values of the terminal device collected in the first duration as the N energy values included in the energy information.

If the energy information comprises probability distribution information of the energy value of the terminal equipment in the first time length. For example, the probability distribution information may be presented in the form of a probability distribution curve, the Y-axis representing the energy value and the X-axis representing time. Alternatively, the probability distribution information may be presented in a table form, or the probability distribution information may be presented in other manners. For example, refer to table 1, which is an implementation form of the probability distribution table.

TABLE 1

As can be seen from table 1, in the period of time 0:00 to 6:00, the probability that the energy of the terminal device is less than 30% is 30%, and the probability that the energy of the terminal device is greater than or equal to 30% is also 30%; in the period of 6:00 to 12:00, the possibility that the energy of the terminal equipment is less than 30% is 10%, and the possibility that the energy of the terminal equipment is greater than or equal to 30% is 90%; in the period of 12:00 to 18:00, the probability that the energy of the terminal equipment is less than 30% is 0, and the probability that the energy of the terminal equipment is greater than or equal to 30% is 100%; during the period of 18:00 to 24:00, the probability that the energy of the terminal device is less than 30% is 30%, and the probability that the energy of the terminal device is greater than or equal to 30% is 70%. The energy of the terminal device is less than 30%, which means that the energy of the terminal device is less than 30% of the maximum energy that the terminal device can support, and similarly, the energy of the terminal device is greater than or equal to 30%, which means that the energy of the terminal device is greater than or equal to 30% of the maximum energy that the terminal device can support. Here, 30% of the maximum energy that can be supported by the terminal device may be regarded as a threshold, or may be directly expressed by the threshold in table 1. In addition, table 1 divides the time scale by hours, and the first duration may be considered to be one day, or the first duration may be a smaller or larger particle size, for example, the first duration may be 1 hour, half an hour, or less, or 2 days, one month, or more.

The energy information is indicated through the probability distribution information, and the energy condition of the terminal equipment in the first duration can be indicated more clearly.

If the energy information includes an average value of the energy values of the terminal device in the first time period, the terminal device may sample the energy values of the terminal device in the first time period according to the second step length, and average the sampled energy values, that is, the average value of the energy values of the terminal device in the first time period. Similarly, the second step size may be expressed as a specific time period, for example, 10 minutes, or may be expressed as percentage information, for example, 10%, which means that samples are taken every 10% of the second time period from the start time of the second time period. The first step size and the second step size may be the same or different. For example, if the first duration is the time from 09:00:00 to 09:30:00, and the second step is 10 minutes, the energy information may include the energy value of the terminal device at 09:00:00, the energy value of the terminal device at 09:10:00, and the energy value of the terminal device at 09:30:00, and the average value of the energy values of the terminal device in the first duration may be obtained by averaging the three energy values. Or, since the first duration is already the past time period, the energy value of the terminal device collected by the terminal device in the first duration is already a known quantity, and the terminal device only needs to average all the energy values of the terminal device collected in the first duration. The average may be an arithmetic average or a geometric average. Of course, the second step size is only an example, and the actual second step size may be configured by the network device or specified by the protocol. If the second step size is smaller, the average value is closer to the actual energy value of the terminal device.

If the energy information includes a duration in which the energy value of the terminal device is greater than or equal to the first threshold within the first duration, it may be determined which times (or which durations) in the first duration the terminal device has an energy value greater than or equal to the first threshold, and the sum of the times (or durations) is the duration in which the energy value of the terminal device is greater than or equal to the first threshold. For example, the first time period is a time period from 09:00:00 to 10:00:00, the energy value of the terminal device in 09:00:00 to 09:35:00 is greater than the first threshold, the energy value in 09:35:00 to 09:45:00 is equal to the first threshold, and the energy value in 09:45:00 to 10:00:00 is less than the first threshold, then the time period during which the energy value of the terminal device is greater than or equal to the first threshold in the first time period is 45 minutes. The first threshold is only an example, and the specific first threshold may be configured by the network device or specified by a protocol.

In addition, the energy information of the terminal device may be embodied by the transmission power of the terminal device, or may be embodied by the remaining capacity of the terminal device, or may be embodied by the transmission power and the remaining capacity, or may be embodied by other parameters.

And S53, the terminal equipment sends the energy information to the network equipment, and the network equipment receives the energy information from the terminal equipment.

After determining the energy information, the terminal device may send the energy information to the network device, so that the network device may obtain the energy information of the terminal device. For example, the terminal device may send the energy information to the network device through an RRC message, or may send the energy information to the network device through another type of message.

In addition, in the processes of S51 to S53, the terminal device may be in an RRC connected state, and thus may interact with the network device. After S53, the terminal device may enter an RRC inactive state or an RRC idle state, so that the network device needs to initiate paging to the terminal device.

Because both the access network device and the core network device may initiate paging to the terminal device, if the network device is the access network device, the access network device may send the energy information to the core network device after obtaining the energy information of the terminal device, or, if the network device is the core network device, the core network device may send the energy information to the access network device after obtaining the energy information of the terminal device. Therefore, both the access network equipment and the core network equipment can obtain the energy information of the terminal equipment, and paging can be initiated to the terminal equipment according to the energy information of the terminal equipment.

And S54, the network equipment sends a paging message to the terminal equipment according to the energy information.

Generally, if there is no downlink information to be sent to the terminal device, the network device may not need to initiate paging to the terminal device, because even if the terminal device is paged, there may be no information transmission with the terminal device, which consumes energy of the terminal device. Therefore, the network device can initiate paging to the terminal device when downlink information needs to be sent to the terminal device.

For example, when the first downlink information arrives, the network device may determine whether the current energy of the terminal device supports receiving the first downlink information according to the energy information. The network device may send a paging message to the terminal device if it is determined that the terminal device is currently powered up to receive the first downlink information. The first downlink information may comprise data, or signaling, or both data and signaling.

The network device has already obtained the energy information of the terminal device, so when the first downlink information arrives, the network device may determine whether the current energy of the terminal device supports receiving the first downlink information according to the energy information of the terminal device. Equivalently, the network device determines whether the current energy of the terminal device supports receiving the first downlink information according to the historical energy information of the terminal device.

The network device may be an access network device or a core network device. For example, if the network device is an access network device, if the terminal device is in an RRC inactive state and the first downlink information arrives, the access network device may determine whether the terminal device is powered on with a certain probability or determine that the terminal device is powered on with a certain probability according to the energy information of the terminal device. If the terminal equipment is determined to be powered on or determined to be powered on with a certain probability, the current energy of the terminal equipment is determined to support receiving the first downlink information, and if the terminal equipment is determined to be powered off with a certain probability or the terminal equipment is determined to be powered off, the current energy of the terminal equipment is determined to not support receiving the first downlink information.

Alternatively, the network device is a core network device. If the terminal device is in the RRC idle state and the first downlink information arrives, the access network device may determine whether the terminal device has power at a certain probability or determine that the terminal device has power at a certain probability according to the energy information of the terminal device. If the terminal equipment is determined to be powered on or determined to be powered on with a certain probability, the current energy of the terminal equipment is determined to support receiving the first downlink information, and if the terminal equipment is determined to be powered off with a certain probability or the terminal equipment is determined to be powered off, the current energy of the terminal equipment is determined to not support receiving the first downlink information.

By the method provided by the embodiment of the application, the network equipment can determine whether to initiate paging to the terminal equipment according to the energy condition of the terminal equipment, so that the network equipment can call the terminal equipment when the terminal equipment is powered on as much as possible, the waste of network resources is reduced, and the paging success rate is improved. And the network device does not need to register the terminal device because the terminal device is not paged, thereby reducing the possibility that the terminal device needs to register again.

In order to solve the same technical problem as the technical problem to be solved by the embodiment shown in fig. 5, the embodiment of the present application provides a third communication method. Please refer to fig. 6, which is a flowchart of the method. In the following description, the method is applied to the network architecture shown in fig. 3 as an example. In addition, the method may be performed by two communication devices, e.g. a first communication device and a second communication device. The first communication device or the second communication device may be an access network device or a communication device capable of supporting the access network device to implement the functions required by the method, or may be a core network device or a communication device capable of supporting the core network device to implement the functions required by the method, or may be a terminal device or a communication device capable of supporting the terminal device to implement the functions required by the method, or of course, may also be another communication device, such as a chip system. For example, the first communication device may be an access network device, the second communication device may be a terminal device, or the first communication device may be a core network device, the second communication device may be a terminal device, or the first communication device may be an access network device, and the second communication device may support a chip system for the terminal device to implement the method, and so on. The access network device is, for example, a base station.

And S61, the terminal equipment determines that the energy state of the terminal equipment is the first state.

For example, the terminal device may determine an energy state of the terminal device based on the first threshold. The first threshold may be used to determine that the energy state of the terminal device is the first state or the second state, for example, the energy state of the terminal device may be determined to be the first state or the second state by comparing the currently remaining energy of the terminal device with the first threshold. Wherein the first state may be considered a low energy state and the second state may be considered a high energy state. The low energy state means that the terminal device may not support receiving information from the network device, for example, the current power of the terminal device may not support receiving paging normally, or receiving indication information for establishing RRC connection. For example, the low energy state is a state in which the power of the terminal device is about to be exhausted. The high-energy state means that the terminal device can support receiving information from the network device, for example, the current power of the terminal device can support receiving paging normally, or receiving indication information for establishing RRC connection, and the like.

For example, the terminal device may know the first threshold in advance. For example, the first threshold is configured by the network device, for example, the network device sends a third message to the terminal device, where the third message is used to indicate the first threshold, and the terminal device may determine the first threshold after receiving the third message from the network device. If the network device sends the first threshold to the terminal device, the terminal device may be in an RRC connected state when receiving the first threshold from the network device, and the third message may be an RRC message, for example, or may be another type of message, for example, a message in a random access procedure. If the first threshold is configured by the network device, the network device may configure the same first threshold for multiple terminal devices, so that the network device may transmit the first threshold in a broadcast or multicast manner (that is, the third message may be a broadcast message or a multicast message), which helps to save signaling overhead. Or, if the first threshold is configured by the network device, the network device may also configure different first thresholds for different terminal devices, for example, the network device may configure corresponding first thresholds for the terminal devices according to the capabilities of different terminal devices, so that the configured first thresholds are more in line with the actual situations of the terminal devices. The capability of the terminal device described herein mainly refers to a situation where the terminal device acquires energy, a situation where the terminal device consumes energy, or the like.

Alternatively, the first threshold may be specified by a protocol. The protocol may specify a first threshold that applies to all terminal devices or the protocol may specify different first thresholds that apply to different terminal devices, for example, a first threshold that applies to a terminal device of a capability.

Alternatively, the first threshold may be determined by the terminal device itself, for example, the terminal device may determine the first threshold according to the capability of the terminal device. In this way, the first thresholds determined by different terminal devices may be the same or different. The first threshold determined by the method can better accord with the actual situation of the terminal equipment and can reflect the energy situation of the terminal equipment more truly.

Of course, the terminal device may determine whether the energy state of the terminal device is the first state or the second state in other ways besides the first threshold.

S62, the terminal device sends a first message to the network device, and the network device receives the first message from the terminal device, where the first message is used to indicate that the energy state of the terminal device is a first state, or the first message is used to indicate that the energy of the terminal device is smaller than a first threshold.

If the terminal device determines that the current remaining energy of the terminal device is less than the first threshold, it indicates that the terminal device may not support receiving information from the network device, for example, the terminal device may be running out of power and may not wait to receive information from the network device, or even if the terminal device can wait for information from the network device, the terminal device may not support the terminal device to receive information from the network device. The terminal device may send a first message to the network device to inform the network device of the low energy of the terminal device. The terminal device determines the energy of the terminal device, and sends a first message to the network device, during which the terminal device may be in an RRC connected state, for example, the first message is an RRC message, or is another type of message.

For example, the first message is a message dedicated to indicating the energy of the terminal device, e.g., the first message occupies 1 bit (bit). If the value of the 1 bit is '1', the energy state of the terminal equipment is a first state, or the energy of the terminal equipment is smaller than a first threshold; if the value of the 1 bit is "0", it indicates that the energy state of the terminal device is the second state, or indicates that the energy of the terminal device is greater than or equal to the first threshold. Or the first message may also occupy more bits, and indicate the energy of the terminal device through a corresponding bit value mode, which is not limited specifically.

Or the first message may also be a message that is multiplexed with an existing message originally used for another purpose, and the first message may include indication information for indicating the energy of the terminal device, where the indication information is, for example, 1 bit, and if the value of the 1 bit is "1", it indicates that the energy state of the terminal device is the first state, or indicates that the energy of the terminal device is smaller than the first threshold; if the value of the 1 bit is "0", it indicates that the energy state of the terminal device is the second state, or indicates that the energy of the terminal device is greater than or equal to the first threshold. Or the indication information may occupy more bits, and indicate the energy of the terminal device through a corresponding value mode of the bits, which is not limited specifically.

The network device is, for example, an access network device or a core network device. Because both the access network device and the core network device may initiate paging to the terminal device, if the network device is the access network device, the access network device may forward the first message to the core network device after receiving the first message, or if the network device is the core network device, the core network device may forward the first message to the access network device after receiving the first message. In this way, both the access network device and the core network device can obtain the first message, so that both can determine the current energy condition of the terminal device.

And S63, the network equipment determines not to send information to the terminal equipment.

If the network device determines that the energy state of the terminal device is the first state, the network device knows that the terminal device cannot support receiving information, and therefore the network device may not send information to the terminal device, for example, the network device does not initiate paging to the terminal device.

For example, the terminal device may periodically determine the energy of the terminal device. After sending the first message to the network device, the terminal device may enter a low energy state or a power-off state. After a period of time, the terminal device may obtain energy again, for example, the energy of the terminal device may be greater than or equal to the first threshold, the terminal device may send a second message to the network device, where the second message is used to indicate that the energy state of the terminal device is the second state, or indicate that the energy of the terminal device is greater than or equal to the first threshold. After receiving the second message, the network device may determine that information can be sent to the terminal device. For example, the network device has downlink information to be sent to the terminal device, the network device may send a paging message to the terminal device, so as to send the downlink information to the terminal device after calling the terminal device. The downlink information includes, for example, data or signaling, or both.

The network device may be an access network device or a core network device. For example, if the network device is an access network device, the access network device will not send a paging message to the terminal device if the access network device receives the first message from the terminal device. Subsequently, if the access network device receives the second message from the terminal device, the access network device determines that the paging message can be sent to the terminal device. In this case, if the terminal device is in the RRC inactive state and downlink information to be sent to the terminal device arrives, the access network device may send a paging message to the terminal device.

Alternatively, the network device is a core network device. Then the access network device will not send a paging message to the terminal device if the access network device receives the first message from the terminal device. Subsequently, if the access network device receives the second message from the terminal device, the access network device determines that the paging message can be sent to the terminal device. In this case, if the terminal device is in the RRC idle state and downlink information to be sent to the terminal device arrives, the access network device may send a paging message to the terminal device.

The following describes an apparatus for implementing the above method in the embodiment of the present application with reference to the drawings. Therefore, the above contents can be used in the subsequent embodiments, and the repeated contents are not repeated.

Fig. 7 is a schematic block diagram of a communication device 700 provided in an embodiment of the present application. Illustratively, the communication device 700 is, for example, an access network device 700. The access network device 700 includes a processing module 710 and a transceiver module 720. The processing module 710 may be configured to perform all operations performed by the access network device in the embodiment shown in fig. 4 except transceiving operations, such as S44 in the embodiment shown in fig. 4, and/or other processes for supporting the techniques described herein. The transceiving module 720 may be used to perform all transceiving operations performed by the access network device in the embodiment illustrated in fig. 4, e.g., S41, S42, S43, and S45 in the embodiment illustrated in fig. 4, and/or other processes for supporting the techniques described herein.

A transceiver module 720, configured to receive a first message from a terminal device, where the first message carries indication information, where the indication information is used to indicate that the first uplink data has been sent, and the first message also carries an identifier of the terminal device;

a processing module 710, configured to determine whether first information corresponding to the first message or the first uplink data is stored according to the identifier of the terminal device;

the transceiver module 720 is further configured to send a second message to the terminal device when the processing module 710 determines that the first information is stored, where the second message carries the first information.

As an optional implementation manner, the transceiver module 720 is further configured to receive a type indication message from the terminal device, where the type indication message is used to indicate that the type of the terminal device is the first type.

As an alternative to the above-described embodiment,

the transceiver module 720 is further configured to receive a third message from the terminal device before receiving the first message from the terminal device, where the third message carries first uplink data, the first message is the retransmitted third message, and the third message also carries a first identifier, where the first identifier is an identifier of the first uplink data;

the processing module 710 is further configured to determine the first information according to the first uplink data;

the transceiver module 720 is further configured to send a sixth message to the terminal device, where the sixth message carries the first information;

the processing module 710 is further configured to store the first information when the transceiver module 720 does not receive a response message corresponding to the sixth message from a terminal device, where the type of the terminal device is the first type.

As an optional implementation manner, the processing module 710 is further configured to store a correspondence between the identifier of the terminal device, the first identifier, and the first information.

As an optional implementation manner, the first message does not carry the first uplink data,

the transceiver module 720 is further configured to send a fourth message to the terminal device when the processing module 710 determines that the first information is not stored, where the fourth message is used to request to resend the first uplink data;

the transceiver module 720 is further configured to receive a fifth message from the terminal device, where the fifth message carries the first uplink data;

the transceiver module 720 is further configured to send a seventh message to the terminal device, where the seventh message carries the first information.

As an optional implementation manner, the first message carries first uplink data,

the processing module 710 is further configured to determine the first information according to the first uplink data when it is determined that the first information is not stored;

The processing module 710 is configured to determine the first information according to the first uplink data by:

sending the first uplink data to a core network device through a transceiver module 720;

the first information from the core network device is received through the transceiver module 720.

As an optional implementation manner, the first message further carries a first identifier, where the first identifier is an identifier of the first uplink data.

As an optional implementation manner, the processing module 710 is configured to determine whether first information corresponding to the first message or the first uplink data is stored according to the identifier of the terminal device by:

It should be understood that the processing module 710 in the embodiments of the present application may be implemented by a processor or a processor-related circuit component, and the transceiver module 720 may be implemented by a transceiver or a transceiver-related circuit component.

As shown in fig. 8, an embodiment of the present application further provides a communication device 800. Illustratively, the communication device 800 is, for example, an access network device 800. The access network device 800 includes a processor 810, a memory 820 and a transceiver 830, wherein the memory 820 stores instructions or programs therein, and the processor 810 is configured to execute the instructions or programs stored in the memory 820. When the instructions or programs stored in the memory 820 are executed, the processor 810 is configured to perform the operations performed by the processing module 710 in the above embodiments, and the transceiver 830 is configured to perform the operations performed by the transceiver module 720 in the above embodiments.

It should be understood that the access network device 700 or the access network device 800 according to the embodiment of the present application may correspond to the terminal device in the embodiment shown in fig. 4, and operations and/or functions of each module in the access network device 700 or the access network device 800 are respectively for implementing the corresponding flow in the embodiment shown in fig. 4, and are not described herein again for brevity.

Fig. 9 is a schematic block diagram of a communication device 900 provided in an embodiment of the present application. Illustratively, the communication device 900 is, for example, a terminal device 900. The terminal device 900 comprises a processing module 910 and a transceiver module 920. The processing module 910 may be configured to perform all operations performed by the terminal device in the embodiment shown in fig. 4 except transceiving operations, for example, the operation of the terminal device determining the first uplink data in the embodiment shown in fig. 4, and/or other processes for supporting the techniques described herein. The transceiving module 920 may be used to perform all transceiving operations performed by the terminal device in the embodiment illustrated in fig. 4, such as S41, S42, S43, and S45 in the embodiment illustrated in fig. 4, and/or other processes for supporting the techniques described herein.

A processing module 910, configured to determine that first uplink data has been sent;

a transceiver module 920, configured to send a first message to an access network device, where the first message carries indication information, where the indication information is used to indicate that the first uplink data has been sent, and the first message also carries an identifier of a terminal device 900;

the transceiver module 920 is further configured to receive a second message from the access network device, where the second message carries first information, and the first information corresponds to the first message or the first uplink data.

Alternatively, the processing module 910 may not need to perform the step of determining that the first uplink data has been sent, for example, if the transceiver module 920 sends the first uplink data before, the processing module 910 naturally knows that the first uplink data does not need to be determined again.

As an optional implementation manner, the transceiver module 920 is further configured to send a type indication message to the access network device, where the type indication message is used to indicate that the type of the terminal device is the first type.

As an optional implementation manner, the first message does not carry the first uplink data, and the transceiver module 920 is further configured to:

As an optional implementation manner, the first message further carries the first uplink data.

It should be understood that the processing module 910 in the embodiments of the present application may be implemented by a processor or a processor-related circuit component, and the transceiver module 920 may be implemented by a transceiver or a transceiver-related circuit component.

As shown in fig. 10, an embodiment of the present application further provides a communication device 1000. Illustratively, the communication device 1000 is, for example, a terminal device 1000. The terminal device 1000 includes a processor 1010, a memory 1020 and a transceiver 1030, wherein the memory 1020 stores instructions or programs and the processor 1010 is configured to execute the instructions or programs stored in the memory 1020. When the instructions or programs stored in the memory 1020 are executed, the processor 1010 is configured to perform the operations performed by the processing module 910 in the above embodiments, and the transceiver 1030 is configured to perform the operations performed by the transceiver module 920 in the above embodiments.

It should be understood that the terminal device 900 or the terminal device 1000 according to the embodiment of the present application may correspond to the terminal device in the embodiment shown in fig. 4, and operations and/or functions of each module in the terminal device 900 or the terminal device 1000 are respectively for implementing the corresponding flow in the embodiment shown in fig. 4, and are not described herein again for brevity.

Fig. 11 is a schematic block diagram of a communication device 1100 provided in an embodiment of the present application. Illustratively, the communication device 1100 is, for example, a network device 1100. Network device 1100 includes a processing module 1110 and a transceiver module 1120. Processing module 1110 may be configured to perform all operations performed by a network device in the embodiment shown in fig. 5 except transceiving operations, such as S54 in the embodiment shown in fig. 5, and/or other processes for supporting the techniques described herein. The transceiving module 1120 may be configured to perform all transceiving operations performed by a network device in the embodiment illustrated in fig. 5, e.g., S51 and S53 in the embodiment illustrated in fig. 5, and/or other processes to support the techniques described herein.

A transceiver module 1120, configured to receive energy information of a terminal device, where the energy information is used to indicate a comprehensive energy state of the terminal device within a first duration, or is used to indicate a current energy state of the terminal device;

a processing module 1110, configured to send a paging message to the terminal device according to the energy information.

As an optional implementation manner, the processing module 1110 is configured to send a paging message to the terminal device according to the energy information by:

when the current energy of the terminal device supports receiving the first downlink information, the paging message is sent to the terminal device through the transceiver module 1120.

It is understood that the processing module 1110 in the embodiments of the present application may be implemented by a processor or a processor-related circuit component, and the transceiver module 1120 may be implemented by a transceiver or a transceiver-related circuit component.

As shown in fig. 12, an embodiment of the present application further provides a communication device 1200. Illustratively, the communication device 1200 is, for example, a network device 1200. The network device 1200 comprises a processor 1210, a memory 1220 and a transceiver 1230, wherein the memory 1220 stores instructions or programs and the processor 1210 is configured to execute the instructions or programs stored in the memory 1220. When the instructions or programs stored in the memory 1220 are executed, the processor 1210 is configured to perform the operations performed by the processing module 1110 in the above-described embodiment, and the transceiver 1230 is configured to perform the operations performed by the transceiver module 1120 in the above-described embodiment.

It should be understood that the network device 1100 or the network device 1200 according to the embodiment of the present application may correspond to the network device in the embodiment shown in fig. 5, and operations and/or functions of the respective modules in the network device 1100 or the network device 1200 are respectively for implementing the corresponding flows in the embodiment shown in fig. 5, and are not described herein again for brevity.

Fig. 13 is a schematic block diagram of a communication device 1300 according to an embodiment of the present application. Exemplarily, the communication device 1300 is, for example, a terminal device 1300. The terminal device 1300 includes a processing module 1310 and a transceiver module 1320. Processing module 1310 may be configured to perform all operations performed by the terminal device in the embodiment shown in fig. 5, except for transceiving operations, such as S52 in the embodiment shown in fig. 5, and/or other processes for supporting the techniques described herein. The transceiving module 1320 may be utilized to perform all transceiving operations performed by a terminal device in the embodiment illustrated in fig. 5, such as S51 and S53 in the embodiment illustrated in fig. 5, and/or other processes for supporting the techniques described herein.

A processing module 1310, configured to determine energy information of the terminal device, where the energy information is used to indicate a comprehensive energy state of the terminal device within a first duration, or is used to indicate a current energy state of the terminal device;

a transceiver 1320, configured to send the energy information to a network device.

As an optional implementation, the transceiver 1320 is further configured to receive a paging message from the network device.

It is understood that the processing module 1310 in the embodiments of the present application may be implemented by a processor or a processor-related circuit component, and the transceiver module 1320 may be implemented by a transceiver or a transceiver-related circuit component.

As shown in fig. 14, an embodiment of the present application further provides a communication device 1400. Illustratively, the communication device 1400 is, for example, a terminal device 1400. The terminal device 1400 comprises a processor 1410, a memory 1420 and a transceiver 1430, wherein the memory 1420 stores instructions or programs and the processor 1410 is adapted to execute the instructions or programs stored in the memory 1420. When the instructions or programs stored in the memory 1420 are executed, the processor 1410 is configured to perform the operations performed by the processing module 1310 in the above embodiments, and the transceiver 1430 is configured to perform the operations performed by the transceiver 1320 in the above embodiments.

It should be understood that the terminal device 1400 or the terminal device 1400 according to the embodiment of the present application may correspond to the terminal device in the embodiment shown in fig. 5, and operations and/or functions of each module in the terminal device 1400 or the terminal device 1400 are respectively for implementing the corresponding flow in the embodiment shown in fig. 5, and are not described herein again for brevity.

Fig. 15 is a schematic block diagram of a communication device 1500 provided in an embodiment of the present application. Illustratively, the communication device 1500 is, for example, a network device 1500. The network device 1500 includes a processing module 1510 and a transceiver module 1520. Among other things, processing module 1510 may be used to perform all operations performed by a network device in the embodiment shown in fig. 6 except transceiving operations, such as S63 in the embodiment shown in fig. 6, and/or other processes for supporting the techniques described herein. Transceiver module 1520 may be used to perform all transceiving operations performed by a network device in the embodiment shown in FIG. 6, such as S62 in the embodiment shown in FIG. 6, and/or other processes for supporting the techniques described herein.

A transceiver module 1520, configured to receive a first message from a terminal device, where the first message is used to indicate that an energy state of the terminal device is a first state;

a processing module 1510 configured to determine not to send information to the terminal device.

As an alternative to the above-described embodiment,

the transceiver module 1520, further configured to receive a second message from the terminal device, where the second message is used to indicate that the energy status of the terminal device is a second status;

the processing module 1510 is further configured to determine that information can be sent to the terminal device.

As an optional implementation manner, the transceiver module 1520 is further configured to send a first threshold to the terminal device, where the first threshold is used to determine that the energy state of the terminal device is the first state or the second state.

It should be understood that the processing module 1510 in the embodiments of the present application may be implemented by a processor or processor-related circuit components, and the transceiver module 1520 may be implemented by a transceiver or transceiver-related circuit components.

As shown in fig. 16, an embodiment of the present application further provides a communication device 1600. Illustratively, the communication device 1600 is, for example, a network device 1600. Network device 1600 includes a processor 1610, a memory 1620 and a transceiver 1630, where the memory 1620 stores instructions or programs therein and processor 1610 is configured to execute the instructions or programs stored in memory 1620. When the instructions or programs stored in the memory 1620 are executed, the processor 1610 is configured to perform the operations performed by the processing module 1510 in the above embodiments, and the transceiver 1630 is configured to perform the operations performed by the transceiving module 1520 in the above embodiments.

It should be understood that the network device 1500 or the network device 1600 according to the embodiment of the present application may correspond to the network device in the embodiment shown in fig. 6, and operations and/or functions of the respective modules in the network device 1500 or the network device 1600 are respectively for implementing the corresponding flows in the embodiment shown in fig. 6, and are not described herein again for brevity.

Fig. 17 is a schematic block diagram of a communication device 1700 according to an embodiment of the present application. Exemplarily, the communication device 1700 is, for example, a terminal device 1700. The terminal device 1700 comprises a processing module 1710 and a transceiving module 1720. Among other things, processing module 1710 may be configured to perform all operations performed by the terminal device in the embodiment shown in fig. 6 except for transceiving operations, such as S61 in the embodiment shown in fig. 6, and/or other processes to support the techniques described herein. The transceiving module 1720 may be configured to perform all transceiving operations performed by the terminal device in the embodiment illustrated in fig. 6, e.g., S62 in the embodiment illustrated in fig. 6, and/or other processes for supporting the techniques described herein.

A processing module 1710 configured to determine that the energy state of terminal device 1700 is a first state;

the transceiving module 1720 is configured to send a first message to a network device, where the first message is used to indicate that the energy status of the terminal device 1700 is the first status.

As an alternative to the above-described embodiment,

processing module 1710, further configured to determine that the energy state of terminal device 1700 is a second state;

the transceiving module 1720 is further configured to send a second message to the network device, where the second message is used to indicate that the energy status of the terminal device 1700 is the second status.

As an alternative to the above-described embodiment,

a transceiving module 1720, further configured to receive a first threshold from the network device; or the like, or, alternatively,

a processing module 1710, further configured to determine the first threshold;

wherein the first threshold is used to determine that the energy state of the terminal device 1700 is the first state or the second state.

It is to be appreciated that the processing module 1710 in embodiments of the present application may be implemented by a processor or processor-related circuit components, and the transceiver module 1720 may be implemented by a transceiver or transceiver-related circuit components.

As shown in fig. 18, an embodiment of the present application further provides a communication device 1800. Illustratively, the communication device 1800 is, for example, a terminal device 1800. The terminal device 1800 includes a processor 1810, a memory 1820 and a transceiver 1830, wherein the memory 1820 stores instructions or programs and the processor 1810 is configured to execute the instructions or programs stored in the memory 1820. When the instructions or programs stored in the memory 1820 are executed, the processor 1810 is configured to perform the operations performed by the processing module 1710 in the above embodiments, and the transceiver 1830 is configured to perform the operations performed by the transceiver module 1720 in the above embodiments.

It should be understood that the terminal device 1700 or the terminal device 1800 according to the embodiment of the present application may correspond to the terminal device in the embodiment shown in fig. 6, and operations and/or functions of each module in the terminal device 1700 or the terminal device 1800 are respectively for implementing the corresponding flow in the embodiment shown in fig. 6, and are not described herein again for brevity.

The embodiment of the application also provides a communication device, and the communication device can be terminal equipment or a circuit. The communication apparatus may be configured to perform the actions performed by the terminal device in the method embodiment shown in fig. 4, the method embodiment shown in fig. 5, or the method embodiment shown in fig. 6.

When the communication apparatus is a terminal device, fig. 19 shows a schematic structural diagram of a simplified terminal device. For easy understanding and illustration, in fig. 19, the terminal device is exemplified by a mobile phone. As shown in fig. 19, 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 the terminal equipment, executing software programs, processing data of the software programs and the like. The memory is used primarily for storing software programs and data. The radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are used primarily for receiving data input by a user and for outputting data to the user. It should be noted that some kinds of terminal devices may not have input/output devices.

When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs baseband signals to the radio frequency circuit, and the radio frequency circuit performs radio frequency processing on the baseband signals and sends the radio frequency signals to the outside in the form of electromagnetic waves through the antenna. When data is sent to the terminal equipment, the radio frequency circuit receives radio frequency signals through the antenna, converts the radio frequency signals into baseband signals and outputs the baseband signals to the processor, and the processor converts the baseband signals into the data and processes the data. For ease of illustration, only one memory and processor are shown in FIG. 19. In an actual end device product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device, etc. The memory may be provided independently of the processor, or may be integrated with the processor, which is not limited in this embodiment.

In the embodiment of the present application, the antenna and the radio frequency circuit having the transceiving function may be regarded as a transceiving unit of the terminal device, and the processor having the processing function may be regarded as a processing unit of the terminal device. As shown in fig. 19, the terminal device includes a transceiving unit 1910 and a processing unit 1920. A transceiver unit may also be referred to as a transceiver, a transceiving device, etc. A processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, or the like. Optionally, a device used for implementing the receiving function in the transceiving unit 1910 may be regarded as a receiving unit, and a device used for implementing the sending function in the transceiving unit 1910 may be regarded as a sending unit, that is, the transceiving unit 1910 includes a receiving unit and a sending unit. A transceiver unit may also sometimes be referred to as a transceiver, transceiving circuitry, or the like. A receiving unit may also be referred to as a receiver, a receiving circuit, or the like. A transmitting unit may also sometimes be referred to as a transmitter, or a transmitting circuit, etc.

It should be understood that the transceiving unit 1910 is configured to perform the sending operation and the receiving operation on the terminal device side in the method embodiment shown in fig. 4, and the processing unit 1920 is configured to perform other operations besides the transceiving operation on the terminal device side in the method embodiment shown in fig. 4.

For example, in one implementation, the transceiving unit 1910 is configured to perform transceiving steps on the terminal device side in the embodiment shown in fig. 4, such as S41, S42, S43, and S45, and/or other processes for supporting the techniques described herein. The processing unit 1920 is configured to perform other operations besides transceiving operations on the terminal device side in the embodiment shown in fig. 4, for example, an operation of determining the first uplink data, and/or other processes for supporting the technology described herein.

Alternatively, the transceiver 1910 is configured to perform the sending operation and the receiving operation on the terminal device side in the method embodiment shown in fig. 5, and the processing unit 1920 is configured to perform other operations besides the transceiving operation on the terminal device side in the method embodiment shown in fig. 5.

For example, in one implementation, the transceiving unit 1910 is configured to perform transceiving steps on the terminal device side in the embodiment shown in fig. 5, e.g., S51 and S53, and/or other processes for supporting the techniques described herein. A processing unit 1920 configured to perform operations other than transceiving operations on the terminal device side in the embodiment shown in fig. 5, such as S52, and/or other procedures for supporting the techniques described herein.

Alternatively, the transceiver 1910 is configured to perform the sending operation and the receiving operation on the terminal device side in the method embodiment shown in fig. 6, and the processing unit 1920 is configured to perform other operations besides the transceiving operation on the terminal device side in the method embodiment shown in fig. 6.

For example, in one implementation, the transceiving unit 1910 is configured to perform transceiving steps on the terminal device side in the embodiment shown in fig. 6, e.g., S61, and/or other processes for supporting the techniques described herein. A processing unit 1920 configured to perform operations other than transceiving operations on the terminal device side in the embodiment shown in fig. 6, for example, S62, and/or other procedures for supporting the techniques described herein.

When the communication device is a chip, the chip includes a transceiver unit and a processing unit. The transceiver unit can be an input/output circuit and a communication interface; the processing unit is a processor or a microprocessor or an integrated circuit integrated on the chip.

When the communication device in the embodiment of the present application is a terminal device, reference may be made to the device shown in fig. 20. As an example, the device may perform functions similar to those of processor 2010 of FIG. 20. In fig. 20, the apparatus includes a processor 2010, a transmit data processor 2020, and a receive data processor 2030. The processing module 910 in the above embodiment may be the processor 2010 in fig. 20, and performs the corresponding functions. The transceiver 920 in the above embodiments may be the transmit data processor 2020 and/or the receive data processor 2030 in fig. 20. Alternatively, the processing module 1310 in the above embodiment may be the processor 2010 in fig. 20, and performs the corresponding functions. The transceiver 1320 in the above embodiments may be the transmit data processor 2020 and/or the receive data processor 2030 in fig. 20. Alternatively, the processing module 1710 in the above embodiment may be the processor 2010 in fig. 20, and performs the corresponding functions. The transceiver module 1720 in the above-described embodiments may be the transmit data processor 2020 and/or the receive data processor 2030 of fig. 20.

Although fig. 20 shows a channel encoder and a channel decoder, it is understood that these blocks are not limitative and only illustrative to the present embodiment.

Fig. 21 shows another form of the present embodiment. The processing device 2100 includes modules such as a modulation subsystem, a central processing subsystem, and peripheral subsystems. The communication device in this embodiment may serve as a modulation subsystem therein. In particular, the modulation subsystem may include a processor 2103, an interface 2104. The processor 2103 performs the functions of the processing module 910, and the interface 2104 performs the functions of the transceiver module 920. Alternatively, the processor 2103 performs the functions of the processing module 1310, and the interface 2104 performs the functions of the transceiver module 1320. Alternatively, the processor 2103 may perform the functions of the processing module 1710 and the interface 2104 may perform the functions of the transceiver module 1720. As another variation, the modulation subsystem includes a memory 2106, a processor 2103, and a program stored in the memory 2106 and executable on the processor, and the processor 2103 executes the program to implement the method embodiment shown in fig. 4, the method embodiment shown in fig. 5, or the method on the terminal device side in the method embodiment shown in fig. 6. It should be noted that the memory 2106 may be non-volatile or volatile, and may be located within the modulation subsystem or within the processing device 2100, as long as the memory 2106 is coupled to the processor 2103.

The embodiment of the application also provides a first communication system. The communication system may comprise an access network device according to the embodiment shown in fig. 4 and at least one terminal device according to the embodiment shown in fig. 4. The access network device is, for example, the access network device 700 in fig. 7 or the access network device 800 in fig. 8, and the terminal device is, for example, the terminal device 900 in fig. 9 or the terminal device 1000 in fig. 10. For example, the access network device may be used to perform all of the operations performed by the access network device in the embodiment shown in fig. 4, e.g., S41-S45 in the embodiment shown in fig. 4, and/or other processes for supporting the techniques described herein. The terminal device may be used to perform all operations performed by the terminal device in the embodiment shown in fig. 4, such as the operation of the terminal device determining the first uplink data in the embodiment shown in fig. 4, and S41, S42, S43, and S45, and/or other processes for supporting the techniques described herein.

The embodiment of the application also provides a second communication system. The communication system may comprise the network device according to the embodiment shown in fig. 5 and at least one terminal device according to the embodiment shown in fig. 5. The network device is, for example, network device 1100 in fig. 11 or network device 1200 in fig. 12, and the terminal device is, for example, terminal device 1300 in fig. 13 or terminal device 1400 in fig. 14. For example, the network device may be used to perform all of the operations performed by the network device in the embodiment shown in fig. 5, such as S51, S52, and S54 in the embodiment shown in fig. 5, and/or other processes for supporting the techniques described herein. The terminal device may be used to perform all of the operations performed by the terminal device in the embodiment shown in fig. 5, e.g., S51-S53 in the embodiment shown in fig. 5, and/or other processes for supporting the techniques described herein.

The embodiment of the application also provides a third communication system. The communication system may comprise the network device according to the embodiment shown in fig. 6 and at least one terminal device according to the embodiment shown in fig. 6. The network device is, for example, network device 1500 in fig. 15 or network device 1600 in fig. 16, and the terminal device is, for example, terminal device 1700 in fig. 17 or terminal device 1800 in fig. 18. For example, the network device may be used to perform all of the operations performed by the network device in the embodiment shown in fig. 5, such as S63 and S63 in the embodiment shown in fig. 6, and/or other processes for supporting the techniques described herein. The terminal device may be used to perform all of the operations performed by the terminal device in the embodiment shown in fig. 6, such as S61 and S62 in the embodiment shown in fig. 6, and/or other processes for supporting the techniques described herein.

The second communication system and the third communication system may be the same communication system or may be different communication systems. In addition, if the network device in the second communication system is an access network device, the first communication system and the second communication system may be the same communication system, or may be different communication systems. If the network device in the third communication system is an access network device, the first communication system and the third communication system may be the same communication system or may be different communication systems.

The embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, can implement the process related to the terminal device in the embodiment shown in fig. 4 provided in the foregoing method embodiment.

The embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, may implement the process related to the access network device in the embodiment shown in fig. 4 and provided by the foregoing method embodiment.

The embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, can implement the process related to the terminal device in the embodiment shown in fig. 5 provided in the foregoing method embodiment.

Embodiments of the present application further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, can implement the process related to the network device in the embodiment shown in fig. 5 and provided by the foregoing method embodiments.

The embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, can implement the process related to the terminal device in the embodiment shown in fig. 6 and provided by the foregoing method embodiment.

Embodiments of the present application further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, can implement the process related to the network device in the embodiment shown in fig. 6 and provided by the foregoing method embodiments.

The embodiment of the present application further provides a computer program product containing instructions, where the instructions, when executed, perform the method on the terminal device side in the method embodiment shown in fig. 4.

Embodiments of the present application further provide a computer program product containing instructions, where the instructions, when executed, perform the method on the access network device side in the method embodiment shown in fig. 4.

The embodiment of the present application further provides a computer program product containing instructions, where the instructions, when executed, perform the method on the terminal device side in the method embodiment shown in fig. 5.

Embodiments of the present application further provide a computer program product containing instructions, where the instructions, when executed, perform the method on the network device side in the method embodiment shown in fig. 5.

An embodiment of the present application further provides a computer program product containing instructions, where the instructions are executed to perform the method on the terminal device side in the method embodiment shown in fig. 6.

Embodiments of the present application further provide a computer program product containing instructions, where the instructions, when executed, perform the method on the network device side in the method embodiment shown in fig. 6.

It should be understood that the processor mentioned in the embodiments of the present application may be a Central Processing Unit (CPU), and may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It will also be appreciated that the memory referred to in the embodiments of the application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile memory may be a ROM, a Programmable Read Only Memory (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash memory. Volatile memory can be RAM, which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

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

It should be noted that the memory described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

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

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific implementation of the present application, but the scope of the embodiments of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the embodiments of the present application, and all the changes or substitutions should be covered by the scope of the present application. Therefore, the protection scope of the embodiments of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of communication, comprising:

the method comprises the steps that access network equipment receives a first message from terminal equipment, wherein the first message carries indication information, the information indication is used for indicating that first uplink data are sent, and the first message also carries an identifier of the terminal equipment;

the access network equipment determines whether first information corresponding to the first message or the first uplink data is stored or not according to the identifier of the terminal equipment;

and when the first information is stored, the access network equipment sends a second message to the terminal equipment, wherein the second message carries the first information.

2. The method of claim 1, further comprising:

3. The method according to claim 1 or 2, characterized in that the method further comprises:

4. The method of claim 3, further comprising:

5. The method according to any one of claims 1 to 4, wherein the first message does not carry first uplink data, the method further comprising:

6. The method according to any one of claims 1 to 4, wherein the first message carries first uplink data, the method further comprising:

7. The method of claim 3 or 4, wherein the determining, by the access network device, the first information according to the first uplink data comprises:

8. The method according to any one of claims 1 to 7, wherein the first message further carries a first identifier, and the first identifier is an identifier of the first uplink data.

9. The method of claim 8, wherein the determining, by the access network device according to the identifier of the terminal device, whether the first information corresponding to the first message or the first uplink data is stored comprises:

10. A method of communication, comprising:

a terminal device sends a first message to an access network device, wherein the first message carries indication information, the indication information is used for indicating that first uplink data has been sent, and the first message also carries an identifier of the terminal device;

and the terminal equipment receives a second message from the access network equipment, wherein the second message carries first information, and the first information corresponds to the first message or the first uplink data.

11. The method of claim 10, further comprising:

12. The method according to claim 10 or 11, wherein the first message further carries a first identifier, and the first identifier is an identifier of the first uplink data.

13. The method according to any of claims 10 to 12, wherein the first message does not carry first uplink data, and before the terminal device receives the second message from the access network device, the method further comprises:

14. The method according to any one of claims 10 to 12, wherein the first message further carries the first uplink data.

15. A communication device, comprising:

a transceiver module, configured to receive a first message from a terminal device, where the first message carries indication information, where the information indication is used to indicate that the first uplink data has been sent, and the first message also carries an identifier of the terminal device;

a processing module, configured to determine whether first information corresponding to the first message or the first uplink data is stored according to the identifier of the terminal device;

16. The communications device according to claim 15, wherein the transceiver module is further configured to receive a type indication message from the terminal device, where the type indication message is used to indicate that the type of the terminal device is a first type.

17. The communication device of claim 15 or 16,

the processing module is further configured to store the first information when the transceiver module does not receive a response message corresponding to the sixth message from a terminal device, where the type of the terminal device is the first type.

18. The communication device according to claim 17, wherein the processing module is further configured to store a correspondence between an identifier of the terminal device, the first identifier, and the first information.

19. The communication device according to any of claims 15 to 18, wherein the first message does not carry first uplink data,

20. The communication device according to any of claims 15 to 18, wherein the first message carries first uplink data,

the processing module is further configured to, when it is determined that the first information is not stored, determine, by the access network device, the first information according to the first uplink data;

21. The communications device according to claim 17 or 18, wherein the processing module is configured to determine the first information according to the first uplink data by:

22. The communication device according to any of claims 15 to 21, wherein the first message further carries a first identifier, and the first identifier is an identifier of the first uplink data.

23. The communications device of claim 22, wherein the processing module is configured to determine whether the first information corresponding to the first message or the first uplink data is stored according to the identifier of the terminal device by:

24. A communication device, comprising:

a transceiver module, configured to send a first message to an access network device, where the first message carries indication information, where the indication information is used to indicate that the first uplink data has been sent, and the first message also carries an identifier of the communication device;

25. The communications device of claim 24, wherein the transceiver module is further configured to send a type indication message to the access network device, and wherein the type indication message is used to indicate that the type of the communications device is a first type.

26. The communications device according to claim 24 or 25, wherein the first message further carries a first identifier, and the first identifier is an identifier of the first uplink data.

27. The communications device of any one of claims 24 to 26, wherein the first message does not carry first uplink data, and the transceiver module is further configured to:

28. The communications device of any one of claims 24 to 26, wherein the first message further carries the first uplink data.