WO2018035687A1 - Method, device and system for generating charging data record (cdr) - Google Patents

Abstract

Provided in the present invention are a method, device and system for generating CDR, which is used to solve the problem of inappropriate charging in a CE scene. The method comprises: a first communication device receiving CE information of a UE; the first communication device sending the CE information to a second communication device, the CE information being used for the second communication device to generate a charging data record (CDR) of the UE, so that the second communication device generates the CDR of the UE according to the CE information, thus ensuring that CE information is referenced while charging, and improving the appropriateness of charge calculation.

Description

Method, device and system for generating CDR data record Technical field

The present invention relates to the field of communications, and in particular, to a method, device, and system for generating a CDR.

Background technique

To support IoT applications in different scenarios, such as basement, pipeline and other weak coverage scenarios, 3GPP introduced Coverage Enhancement (CE) technology. In CE technology, by dividing different CE levels to cope with changes in the coverage environment of IoT terminals, under the premise of ensuring coverage, the capacity of the system can be improved, and the power consumption of the terminal battery can be saved. Among them, different CE levels use different modulation and coding schemes and retransmission schemes. As shown in FIG. 1, a total of four coverage levels of levels 0 to 3 are currently defined in the 3GPP protocol. The larger the CE level, the worse the coverage of the user equipment. In addition, the CE level can be expressed in a CE mode, for example, CE mode A corresponds to CE levels 0 and 1, and CE mode B corresponds to CE levels 2 and 3.

Since the CE technology uses multiple retransmission schemes and consumes a large amount of additional radio resources, the current communication network does not support charging for the additional radio resources, that is, does not support differentiated charging for CE.

Summary of the invention

The present invention provides a method, a device, and a system for generating a CDR, which are used to solve the problem of unreasonable charging in a scenario in which the CE function is used in the prior art.

In a first aspect, an embodiment of the present invention provides a method for generating a CDR, including: a first communications device receives CE information of a UE; and the first communications device sends the CE information to a second communications device, where the CE The information is used by the second communications device to generate a CDR of the charging data record of the UE, that is, the second communications device generates a CDR of the UE according to the CE information, so that the CE information can be referenced during charging to achieve a difference for the CE. Billing, improve the rationality of cost calculation. In addition, the MME may also generate a CDR of the UE according to the CE information of the UE.

With reference to the first aspect, in a first implementation manner of the first aspect, the receiving, by the first communications device, the CE information of the UE, the first communications device receiving the NAS message sent by the UE, the NAS message Carrying the CE information; or, the first communications device receives a first signaling message sent by the base station, where the first signaling message carries the CE information.

With reference to the first implementation manner of the first aspect, in the second implementation manner of the first aspect, the first communications device sends the CE information to the second communications device, including: the first communications device sends a second signaling message is sent to the second communications device, where the second signaling message carries the CE information; or the first communications device sends an uplink data packet of the UE to the second communications device, The uplink data packet carries the CE information.

In a second aspect, the embodiment of the present invention provides a method for generating a CDR, where the second communications device receives CE information of the UE, and the second communications device generates a CDR of the UE according to the CE information.

With reference to the second aspect, in a first implementation manner of the second aspect, the receiving, by the second communications device, CE information of the UE, the second communications device receiving the CE information sent by the first communications device; or The second communications device receives the first uplink data packet of the UE that is sent by the base station, where the first uplink data packet carries the CE information.

With reference to the first implementation manner of the second aspect, in the second implementation manner of the second aspect, the receiving, by the second communications device, the CE information that is sent by the first communications device, The second signaling message sent by the first communications device, the second signaling message carries the CE information; or the second communications device receives the first of the UE sent by the first communications device An uplink data packet, where the first uplink data packet carries the CE information.

With reference to the first or second implementation manner of the second aspect, in a third implementation manner of the second aspect, the second communications device, according to the CE information, generates a CDR of the UE, including: The second communications device generates a CDR of the UE according to the first uplink data packet and the CE information.

With reference to the first implementation manner of the second aspect, in a fourth implementation manner of the second aspect, after the second communications device receives the second signaling message sent by the first communications device, the method further The second communication device receives the second uplink data packet of the UE, and the second communication device generates the CDR of the UE according to the CE information, including: the second communication device according to the Generating the CDR of the UE by using the uplink data packet and the CE information.

With the second aspect or the foregoing any one of the foregoing aspects, in a fourth implementation manner of the second aspect, the second communications device generates, according to the CE information, a CDR of the UE, including: The second communication device receives the downlink data packet of the UE; the second communication device generates a downlink CDR of the UE according to the downlink data packet of the UE and the CE information.

In a third aspect, the embodiment of the present invention provides a method for generating a CDR, including: acquiring, by a third communications device, CE information of a UE; the third communications device sending the CE information to a second communications device, where the CE information Generating, for the second communication device, a CDR of the UE.

With reference to the third aspect, in a first implementation manner of the third aspect, the third communications device is the UE, and the third communications device sends the CE information to a second communications device, including: the UE Sending the CE information to the second communication device by the first communication device.

With the first implementation of the third aspect, in a second implementation manner of the third aspect, the UE sends the CE information to the second communications device by using the first communications device, including: sending, by the UE The NAS message carrying the CE information is sent to the first communications device, and the NAS message is used by the first communications device to send the CE information to the second communications device.

With the third aspect, in a third implementation manner of the third aspect, the third communications device is a base station, and the third communications device sends the CE information to the second communications device, including: the base station sends and carries a first signaling message having the CE information to the first communications device, where the first signaling message is used by the first communications device to send the CE information to the second communications device; or The base station sends an uplink data packet to the second communications device, where the uplink data packet carries the CE information.

With reference to any of the foregoing aspects or any of the foregoing embodiments, the CE information includes at least one of the following: CE indication information, CE level information, and CE mode information, where the CE indication information is used to indicate that the UE uses the CE function, The CE level information is used to indicate a CE level adopted by the UE, and the CE mode information is used to indicate a CE mode adopted by the UE.

In a fourth aspect, an embodiment of the present invention provides a first communications device, including: a receiving module, configured to receive CE information of a UE, and a sending module, configured to send, to the second communications device, CE information received by the receiving module The CE information is used by the second communications device to generate a CDR of the UE.

With reference to the fourth aspect, in a first implementation manner of the fourth aspect, the receiving module is specifically configured to: receive a NAS message sent by the UE, where the NAS message carries the CE information; or The first signaling message, the first signaling message carries the CE information.

With the first implementation of the fourth aspect, in a second implementation manner of the fourth aspect, the sending module is specifically configured to: send a second signaling message to the second communications device, where the second And causing the message to carry the CE information; or sending an uplink data packet of the UE to the second communications device, where the uplink data packet carries the CE information.

In a fifth aspect, an embodiment of the present invention provides a second communications device, including: a receiving module, configured to receive CE information of a UE, and a generating module, configured to generate, according to the CE information received by the receiving module, the UE CDR.

With reference to the fifth aspect, in a first implementation manner of the fifth aspect, the receiving module is specifically configured to: receive the CE information sent by the first communications device; or receive the first uplink of the UE sent by the base station a data packet, where the first uplink data packet carries the CE information.

With reference to the first implementation manner of the fifth aspect, in the second implementation manner of the fifth aspect, the receiving, by the first communications device, the CE information, a second signaling message, the second signaling message carrying the CE information; or receiving a first uplink data packet of the UE sent by the first communications device, where the first uplink data packet carries the CE information.

With reference to the first or second implementation manner of the fifth aspect, in a third implementation manner of the fifth aspect, the generating module is specifically configured to: according to the first uplink data packet and the CE information, Generating a CDR of the UE.

In a sixth aspect, the embodiment of the present invention provides a third communications device, where the third communications device is a base station or a UE, and the third communications device includes: an acquiring module, configured to acquire CE information of the UE; And a sending module, configured to send the CE information acquired by the acquiring module to the second communications device, where the CE information is used by the second communications device to generate a CDR of the UE.

With reference to the sixth aspect, in a first implementation manner of the sixth aspect, the third communications device is the UE, and the sending module is specifically configured to: send, by using the first communications device, the CE information to the Two communication devices.

With the first implementation of the sixth aspect, in a second implementation manner of the sixth aspect, the sending, by the first communications device, the CE information to the second communications device, The NAS message of the CE information is sent to the first communication device, and the NAS message is used by the first communication device to send the CE information to the second communication device.

With reference to the sixth aspect, in a third implementation manner of the sixth aspect, the third communications device is a base station, and the sending module is configured to: send a first signaling message carrying the CE information to the first a communication device, the first signaling message is used by the first communications device to send the CE information to the second communications device; or, sending an uplink data packet to the second communications device, the uplink data The packet carries the CE information.

With reference to any of the foregoing aspects or any of the foregoing embodiments, the CE information includes at least one of the following: CE indication information, CE level information, and CE mode information, where the CE indication information is used to indicate that the UE uses the CE function, The CE level information is used to indicate a CE level adopted by the UE, and the CE mode information is used to indicate a CE mode adopted by the UE.

DRAWINGS

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

Figure 1 is a schematic diagram of coverage enhancement levels;

2 is an architecture diagram of an EPS network system;

3 is a flowchart of a method for generating a charging data record according to an embodiment of the present invention;

4 is a flowchart of still another method for generating a charging data record according to an embodiment of the present invention;

FIG. 5 is a flowchart of still another method for generating a charging data record according to an embodiment of the present invention; FIG.

6 is a flowchart of still another method for generating a charging data record according to an embodiment of the present invention;

FIG. 7 is a flowchart of still another method for generating a charging data record according to an embodiment of the present invention;

FIG. 8 is a flowchart of still another method for generating a charging data record according to an embodiment of the present invention; FIG.

FIG. 9 is a flowchart of still another method for generating a charging data record according to an embodiment of the present invention;

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

FIG. 11 is a schematic structural diagram of a second communication device according to an embodiment of the present invention;

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

FIG. 13 is a schematic structural diagram of another entity of a first communications device according to an embodiment of the present invention;

FIG. 14 is a schematic structural diagram of another entity of a second communication device according to an embodiment of the present invention;

FIG. 15 is a schematic structural diagram of another third communication device according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The present invention provides a method and a device for generating a CDR, which are used to solve the problem of unreasonable charging in the prior art. The method and the device are based on the same inventive concept. Since the principles of the method and the device for solving the problem are similar, the implementation of the device and the method can be referred to each other, and the repeated description is not repeated. The "and/or" used in the embodiments of the present invention may be a relationship of "and" or an "or" relationship, such as A and/or B, which may be either A alone or B alone. It can be A and B.

It should be understood that, in the embodiment of the present invention, a terminal may be referred to as a user equipment (User). Equipment, UE), mobile station (Mobile Station, MS) or mobile terminal (Mobile Terminal), etc., the terminal can communicate with one or more core network devices via a Radio Access Network (RAN), for example, The terminal may be a mobile phone (or "cellular" phone) or a computer with a mobile terminal, etc., for example, the terminal may also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device with wireless access The network exchanges voice and/or data.

It should also be understood that the technical solutions provided in the embodiments of the present invention can be applied to various communication systems, for example, Global System of Mobile communication (GSM), Code Division Multiple Access (CDMA). System, Wideband Code Division Multiple Access Wireless (WCDMA) system, General Packet Radio Service (GPRS) system, Long Term Evolution (LTE) system, Evolved Packet (Evolved Packet) System, EPS), etc.

The embodiment of the present invention is described by taking an application to an EPS system as an example. Figure 2 shows the architecture of the EPS network system. The EPS network system includes: a UE, an Evolved universal terrestrial radio access network (EUTRAN), a Mobility Management Entity (MME), a Serving Gateway (SGW), and packet data. Packet Data Network Gateway (PGW), Serving GPRS Support Node (SGSN), Home Subscriber Server (HSS), Policy and Charging Rules Function (Policy and Charging Rules Function, PCRF)), Service Capability Exposure Function (SCEF) and Operator's IP Service (Operator's IP Services).

EUTRAN: A network composed of multiple Evolved Node Bs (eNBs) capable of implementing wireless physical layer functions, resource scheduling and radio resource management, radio access control, and mobility management functions. The eNB is connected to the SGW through the user plane interface S1-U for transmitting user data, and is connected to the MME through the control plane interface S1-MME, and implements wireless connection by using the S1-AP protocol. Into bearer control and other functions.

MME: Mainly responsible for all control plane functions of the user, that is, session management, including non-access stratum (NAS) signaling and security, tracking area management, PGW and SGW selection.

SGW: It is mainly responsible for data transmission, forwarding, and route switching of the UE, and is used as a local mobility anchor point when the UE switches between eNBs. Among them, for each UE, only one S-GW serves it at a time.

PGW: As an anchor point of a packet data network (PDN) connection, it is responsible for IP address allocation of the UE, data packet filtering, rate control, and generation of charging information of the UE.

HSS: is a database for storing user subscription information. The main functions of the device are storage user subscription information, user authentication, and location information management.

PCRF: used for quality of service (QoS) control, gating and charging control based on service data flow.

SCEF: Used for the transmission and forwarding of non-IP data packets and the collection of accounting information for non-IP data packets.

SGSN: Mainly completes the functions of routing and forwarding, mobility management, session management, logical link management, authentication and encryption, bill generation and output of packet data packets.

In the above EPC network, the SGW and the PGW are responsible for collecting the charging information and generating a Charging Data Record (CDR), that is, a charging bill. For non-IP data packets, it can also be transmitted through SCEF. The two nodes, MME and SCEF, are responsible for collecting charging information and generating CDRs. Since the uplink and downlink data transmissions are asymmetric, data traffic for uplink transmission and downlink reception of user equipment can be separately counted. The operator calculates the cost of the user's wireless communication service based on the CDR.

As shown in FIG. 3, an embodiment of the present invention provides a method for generating a charging data record, which may be performed by a first communications device, where the first communications device may be an MME or a function equivalent to the MME. For other core network devices, the following takes MME as an example:

101. The first communications device receives CE information of the UE.

The CE information may include at least one of the following: CE indication information, CE level information, and CE mode information.

Specifically, the CE indication information is used to indicate that the UE uses the CE function, for example, by using 1 bit, when the bit position is 1, it indicates that the UE uses the CE function, and vice versa, the UE does not use the CE function. .

Specifically, the CE level information is used to indicate a CE level adopted by the UE, and the CE level may be a CE level adopted by the UE, for example, one of the levels 0 to 3 defined in the 3GPP protocol, and is not pre- limited.

Specifically, the CE mode information is used to indicate a CE mode adopted by the UE, for example, CE mode A or CE mode B, which is not predefined.

102. The first communications device sends the CE information of the UE to the second communications device, where the CE information is used by the second communications device to generate a CDR of the UE.

The second communication device may be a gateway device, and may also be a SCEF. The gateway device may be an SGW and/or a PGW, and is not limited.

Optionally, the CDR in step 102 may be an uplink CDR or a downlink CDR. Obviously, it may also be a comprehensive CDR including both uplink and downlink, and is not limited. The uplink CDR is used to perform statistics on the uplink data sent by the user equipment; the downlink CDR is used to collect statistics on the downlink data received by the user equipment; and the integrated CDR is used to collect statistics on the uplink and/or downlink data of the user equipment.

The CDR may be in the form of a table, and the table 1 is taken as an example, including the type of the record, for example, the SGW CDR or PGW CDR, the user's IMSI, the record open time, the service data flow list, and the CE information. Specifically, the CE information may refer to the related description in step 101; the service data traffic list may include the number of uplink data packets and/or the number of downlink data packets.

Table 1

It should be further noted that the CDR is used to calculate the cost. Taking the CE information as an example, the greater the coverage enhancement level is, the worse the coverage of the user equipment is. Therefore, in order to ensure the communication quality, the terminal with the larger coverage enhancement level consumes more resources. Accordingly, more services should be charged for providing services to terminals with a higher coverage level. Assuming that the terminal with the CE level is 0, the traffic for transmitting the uplink data is 10M, and the charging fee is 30RMB, then the terminal with the CE level of 1, the traffic for sending the uplink data is 10M, and the charging fee is 60RMB.

In the method provided by the foregoing embodiment, the first communications device receives the CE information of the UE, and sends the CE information of the UE to the second communications device, so that the second communications device generates the CDR of the UE according to the CE information, thereby making Time-consuming reference to CE information enables CE-based differentiated billing and improves the rationality of cost calculation.

Optionally, in the first implementation scenario of the foregoing embodiment, taking the MME as an example, step 101 includes 101a or 101b.

The MME receives the NAS message sent by the UE, where the NAS message carries the CE information.

101b. The MME receives a first signaling message sent by the base station, where the first signaling message carries the CE information.

The first signaling message may include a UE context resume request message or an Initial UE message.

It should be noted that the UE context recovery request message may be used in a scenario in which UE data is transmitted in a user plane transmission manner; the initialization UE message may be used in a scenario in which UE data is transmitted in a control plane transmission manner.

Further, step 102 can include 102a or 102b.

102a. The MME sends a second signaling message to the gateway device, where the second signaling message carries the CE information.

The second signaling message may be a modify bearer request message.

102b. The MME sends an uplink data packet of the UE to the gateway device, where the uplink data packet carries the CE information.

Specifically, the CE information may be carried in the header of the uplink data packet; in addition, the uplink data packet may be a GPRS Tunneling Protocol-User Plane (GTP-U) data packet.

It should be noted that, if the NAS message in the step 101a further carries the uplink data of the UE, the MME may specifically send the uplink data packet of the UE according to the NAS message, where the uplink data packet carries the CE information of the UE. And upstream data.

If the NAS message in the step 101a does not carry the uplink data of the UE, the MME may further include the NAS message including the uplink data of the UE before the step 102b, and the MME may specifically include the uplink data of the UE according to the received in step 102b. The NAS message sends an uplink data packet of the UE, and the uplink data packet carries the CE information of the UE.

Optionally, in the second implementation scenario of the foregoing embodiment, taking the MME as an example, step 102 may be replaced by 102c or 102d.

102c. The MME sends the CE information of the UE to the SCEF.

The CE information is used by the SCEF to generate a CDR of the UE.

Specifically, the CE information of the UE may be sent to the SCEF by creating a SCEF Connection Request message.

Further, the MME and the SCEF can communicate with each other through the IWK-SCEF. When the IWSK-SCEF receives the Create SCEF Connection Request message sent by the MME, the MME can forward the information to the SCEF, which is not limited.

102d. The MME generates a CDR of the UE according to the CE information of the UE.

Specifically, when receiving the uplink data packet or the downlink data packet of the UE, the MME records the CE information of the UE in the CDR of the UE.

As shown in FIG. 4, the embodiment of the present invention provides a method for generating a CDR, which is performed by a second communications device, where the second communications device may be a gateway device or a SCEF, where the gateway device may specifically include a PGW and / or SGW, as described below.

201. The second communications device receives CE information of the UE.

For the CE information, refer to the related description in the embodiment shown in FIG. 3, and details are not described herein again.

202. The second communications device generates a CDR of the UE according to the CE information of the UE.

The CDR may be an uplink CDR, a downlink CDR, or a comprehensive CDR. For details, refer to the related description of the embodiment shown in FIG. 3.

Specifically, when the second communication device receives the uplink or downlink data of the UE, the CE information is recorded in the CDR. For example, when the uplink data of the UE is received, the CE information is recorded in the uplink CDR; or, when the downlink data of the UE is received, the CE information is recorded in the downlink CDR.

In the method provided by the foregoing embodiment, the second communications device receives the CE information of the UE, and generates a CDR of the UE according to the CE information of the UE, so that when the CDR is used to calculate the fee, the factor of the CE is fully considered, and the cost calculation is improved. rationality.

Optionally, in the uplink data transmission scenario of the foregoing embodiment, that is, the UE sends uplink data to the second communications device, step 201 may include 201a or 201b.

201a. The second communications device receives the CE information of the UE that is sent by the first communications device.

The first communication device may be an MME or another device whose function is equivalent to the MME.

The second communication device receives the first uplink data packet of the UE that is sent by the base station, where the first uplink data packet carries the CE information of the UE.

Specifically, after receiving the uplink data packet sent by the UE, the base station adds the CE information of the UE to the received uplink data packet to generate a first uplink data packet; and then sends the generated first uplink data packet to the Second communication device. For example, the header of the first uplink data packet includes the CE information of the UE.

In the above step 201b, the gateway device is taken as an example. If the gateway device includes the SGW and the PGW, the base station sends the CE information to the SGW through the first uplink data packet, and the SGW sends the first uplink data packet to the PGW. Therefore, the PGW Both the SGW and the SGW can obtain the CE information of the UE by using the first uplink data packet, so that the PGW and the SGW generate the CDR.

The step 201a may specifically include:

201a', the second communication device receives the second signaling message sent by the MME, where the second signaling message carries the CE information of the UE; or

201a", the second communication device receives the second uplink data packet of the UE that is sent by the MME, and the second uplink data packet carries the CE information of the UE.

In the foregoing step 201a', taking the gateway device as an example, if the gateway device includes the SGW and the PGW, the MME sends the CE information to the SGW by using the second signaling message, and the SGW sends the second signaling message to the PGW. Both the PGW and the SGW can obtain the CE information of the UE by using the second signaling message, so that the PGW and the SGW generate the CDR.

In addition, the step 201a' may be used to send downlink data to be sent by the UE on the network side. Specifically, the PGW sends the downlink data of the UE to the SGW, and the SGW sends a Downlink Data Notification (DDN) to the MME, and the MME sends the paging. Sending a message to the UE; after receiving the paging message, the UE establishes a radio resource control (RRC) connection with the base station, and after receiving the RRC connection setup message (carrying the NAS service request), the base station The CE information and the NAS service request are carried in the initialization UE message and sent to the MME. The CE information of the UE is sent to the SGW and the PGW.

It should be noted that the step 201a" may be applied to the scenario in which the user equipment data is transmitted by using the control plane transmission mode. In addition, the CE information of the UE may be specifically carried in the header of the second uplink data packet.

Optionally, in combination with steps 201b and 201a" in the foregoing uplink data transmission scenario, step 202 may include:

The second communications device generates a CDR of the UE according to the received uplink data packet and the CE information of the UE.

Specifically, the second communications device updates the number of uplink data packets in the CDR according to the received uplink data packet, and records the CE information in the CDR. If the CE information is updated, the number of data packets under the updated CE information is recorded, and details are not described herein. The CDR of the UE may be an uplink CDR.

Optionally, in combination with the foregoing uplink data transmission scenario, after the step 201a', the method further includes:

Receiving, by the second communications device, a third uplink data packet of the UE;

Further, step 202 can include:

The second communications device generates a CDR of the UE according to the third uplink data packet and the CE information of the UE.

It should be noted that the third uplink data packet may be sent by the base station or may be sent by the MME.

Optionally, in the downlink data transmission scenario of the foregoing embodiment, the network side device sends the downlink data to the UE, where the step 202 may include:

202a. The second communications device receives the downlink data packet of the UE.

202b. The second communications device generates a downlink CDR of the UE according to the downlink data packet of the UE and the CE information of the UE.

Specifically, the second communications device updates the number of downlink data packets in the CDR according to the received downlink data packet, and records the CE information in the CDR.

It should be noted that the uplink data packet mentioned in the embodiments of the present invention refers to carrying the UE. The data packet of the uplink data, and the downlink data packet refers to the data packet carrying the downlink data of the UE.

As shown in FIG. 5, the embodiment of the present invention provides another method for generating a CDR, which is performed by a third communications device, which may be a UE or a base station, as described below.

301. The third communications device acquires CE information of the UE.

For the CE information, refer to the related description in the embodiment shown in FIG. 3, and details are not described herein again.

302. The third communications device sends the CE information of the UE to the second communications device, where the CE information is used by the second communications device to generate the CDR of the UE.

The second communication device may be a gateway device or a SCEF. The gateway device may specifically include an SGW and/or a PGW.

Optionally, when the third communications device is a UE, step 302 includes:

The UE sends the CE information to the second communication device through the first communication device.

The first communication device may be an MME or another device whose function is equivalent to the MME.

Specifically, the UE sends a NAS message carrying the CE information to the MME, where the NAS message is used by the MME to send the CE information to the gateway device; the MME sends the CE information to the gateway device by using an uplink data packet or a signaling message, where For details, refer to the related description of step 102a or 102b, and details are not described herein.

Optionally, when the third communication device is a base station, step 302 includes 302a or 302b.

302a. The base station sends a first signaling message carrying the CE information to the first communications device, where the first signaling message is used by the MME to send the CE information to the second communications device.

Specifically, the base station sends the first signaling message carrying the CE information to the MME. For details, refer to step 101b. The MME sends the CE information to the gateway device by using an uplink data packet or a second signaling message. For details, refer to step 102a. Or 102b, no longer repeat them.

302b. The base station sends the uplink data packet of the UE to the second communications device, where the uplink data packet carries the CE information.

In the method provided by the foregoing embodiment, the third communications device acquires CE information of the UE, and sends the The CE information of the UE is sent to the gateway device, so that the gateway device generates the CDR according to the CE information, so that when the CDR is used to calculate the fee, the factor of the CE is fully considered, the differentiated charging for the CE is realized, and the rationality of the cost calculation is improved.

As shown in FIG. 6, the embodiment of the present invention provides another method for generating a CDR of a charging data record, which is specifically as follows.

401. The base station acquires the CE information of the UE, and carries the CE information of the UE in the GTP-U data packet and sends the information to the gateway device.

For the CE information, refer to the related description in the embodiment shown in FIG. 3, and details are not described herein again.

Specifically, the base station receives the uplink data sent by the UE, and then generates a GTP-U data packet according to the uplink data and the CE information of the UE, and finally sends the GTP-U data packet to the gateway device. The CE information may be carried in the header of the GTP-U data packet.

402. The gateway device generates a CDR of the UE according to the CE information and the GTP-U data packet.

For a specific implementation of step 402, refer to the related description of step 202.

It should be noted that the foregoing gateway device may include at least one of an SGW and a PGW. When the gateway device includes the SGW and the PGW, the base station sends the CE information to the SGW through the GTP-U data packet, and the SGW sends the GTP-U data packet to the PGW. Therefore, both the PGW and the SGW can obtain the UE through the GTP-U data packet. CE information so that PGW and SGW generate CDRs.

In addition, after obtaining the CE information of the UE, the gateway device may store the CE information of the UE, and the stored CE information may be used to generate a downlink CDR according to the CE information of the UE when the gateway device receives the downlink data packet. The CE information of the UE is stored as related information of the bearer, so that the gateway device can find the CE information of the UE by using the bearer.

Optionally, the foregoing method further includes:

403. The gateway device receives a downlink data packet of the UE.

404. The gateway device generates a CDR of the UE according to the downlink data packet of the UE and the CE information of the UE.

For a specific implementation of step 404, refer to the related description of step 202.

As shown in FIG. 7, another embodiment of the present invention provides a method for generating a CDR of a charging data record, which is specifically described below.

501. The base station acquires the CE information of the UE, and sends the CE information of the UE to the MME by using the first signaling message.

For the CE information, refer to the related description in the embodiment shown in FIG. 3.

It should be noted that, when the data of the UE is transmitted by using the control plane transmission mode, the first signaling message may be an Initial UE message; when the data of the UE is transmitted by using the user plane transmission mode, the first signaling message may be a UE context resume. Request.

502. The MME sends the CE information of the UE to the gateway device by modifying the bearer request message.

503. The gateway device generates a CDR of the UE according to the CE information of the UE.

For the CDR, refer to the related description in the embodiment shown in FIG. 3, and details are not described herein.

Specifically, the gateway device may record the CE information in the CDR of the UE after receiving the uplink data packet or the downlink data packet of the UE.

The control plane transmission mode is taken as an example. It is assumed that the network side device has downlink data to be sent to the UE, and the MME sends a paging message to the UE. The UE sends an RRC (Radio Resource Control) connection that carries the service request. The RRC connection establishment message is sent to the base station; the base station sends an Initial UE message to the MME according to the RRC connection establishment message and the CE information of the UE, where the Initial UE message carries the CE information and the service request; and the MME sends the modification carrying the CE information. The bearer request message is sent to the SGW; the SGW sends the modify bearer request message to the PGW; after receiving the downlink data packet of the UE, the PGW or the SGW records the CE information in the CDR.

The user plane transmission mode is taken as an example. The UE needs to send uplink data to the network side device. The UE sends a random access message to the base station to complete the RRC connection recovery with the base station. The base station sends the UE context carrying the CE information. Resume request to MME; MME sends carry The modify bearer request message of the CE information is sent to the SGW; the SGW sends the modify bearer request message to the PGW; after receiving the uplink data or the downlink data of the UE, the SGW and the PGW record the CE information in the CDR.

Optionally, in an alternative scenario, the first signaling message further carries uplink data of the UE, and the foregoing step 502 may be replaced by steps 502a-502b, and step 503 is performed after 502b.

502a. The MME sends a modify bearer request message to the gateway device.

502b. The MME sends a GTP-U data packet to the gateway device according to the first signaling message, where the GTP-U data packet carries the CE information of the UE.

Specifically, the CE information of the UE may be carried in the header of the GTP-U data packet.

Further, when the CDR distinguishes between the uplink and the downlink, the step 503 may include: the gateway device generates an uplink CDR of the UE according to the CE information of the UE and the GTP-U data packet.

It should be noted that, if the gateway device includes the SGW and the PGW, the steps 502-503 and 502a-503a may each include the MME sending a modify bearer request or a GTP-U data packet to the SGW, and the SGW receives and sends the modified bearer request or GTP- U packets to the PGW.

As shown in FIG. 8, the embodiment of the present invention provides a flowchart of a method for generating a CDR of a charging data record, which is specifically described below.

601. The UE sends a NAS message to the MME, where the NAS message carries the CE information of the UE and the uplink data of the UE.

602. The MME sends the CE information of the UE to the gateway device by using a signaling message.

The gateway device may be an SGW and/or a PGW, and the signaling message may be a modify bearer request.

603. The MME sends a GTP-U data packet to the gateway device according to the NAS message.

604. The gateway device generates a CDR of the UE according to the CE information of the UE and the GTP-U data packet.

Optionally, in an alternative scenario, steps 602-603 may be replaced with 602a-603a, and step 604 is performed after step 603a is performed.

602a. The MME sends a signaling message to the gateway device.

For the gateway device and the signaling message, refer to the related description in step 602.

603a. The MME sends a GTP-U data packet to the gateway device according to the NAS message, where the GTP-U data packet carries the CE information of the UE.

As shown in FIG. 9, another embodiment of the present invention provides a method for generating a CDR, which is specifically described below.

701. The UE initiates an attach procedure or a packet data network (PDN) connection establishment process.

702. The base station acquires the CE information of the UE, and sends the CE information of the UE to the MME by using the first signaling message.

For the CE information, refer to the related description in the embodiment shown in FIG. 3. The first signaling message may be an initialization UE message.

703. The MME sends a SCEF connection request message to the SCEF, where the created SCEF connection request message carries the CE information of the UE.

704. The SCEF sends a create SCEF connection response message to the MME.

705. The SCEF generates a CDR of the UE according to the CE information of the UE and the non-IP data packet.

Specifically, when the SCEF receives an uplink or downlink non-IP data packet, the CE information of the UE is recorded in the CDR.

For the CDR, refer to the related description in the embodiment shown in FIG. 3, and details are not described herein.

Optionally, the foregoing method further includes:

706. The MME generates a CDR of the UE according to the CE information of the UE and the non-IP data packet.

For the CDR, refer to the related description in the embodiment shown in FIG. 3, and details are not described herein.

Specifically, the MME and/or the SCEF may record the CE information in the CDR of the UE after receiving the uplink non-IP data packet or the downlink non-IP data packet of the UE.

The order in which steps 705 and 706 are executed is not limited.

As shown in FIG. 10, an embodiment of the present invention provides a first communications device, which may be used to perform the steps of the first communications device or MME in the embodiment shown in FIG. 3 or 7 or 8 or 9. The first communication device specifically includes: a receiving module 101 and a sending module 102.

The receiving module 101 is configured to receive CE information of the UE.

The sending module 102 is configured to send the CE information received by the receiving module 101 to the second communications device, where the CE information is used by the second communications device to generate a CDR of the UE.

The CE information includes at least one of the following: CE indication information, CE level information, and CE mode information; the CE indication information is used to indicate that the UE uses a CE function, and the CE level information is used to indicate the UE. The adopted CE level, the CE mode information is used to indicate the CE mode adopted by the UE.

The first communication device may be an MME or another device that is functionally equivalent to the MME. In addition, the second communication device may be a SCEF or a gateway device. For details, refer to the related description in the foregoing method embodiments, and the details are not described herein.

Optionally, the receiving module 101 is specifically configured to:

Receiving a NAS message sent by the UE, where the NAS message carries the CE information; or

Receiving a first signaling message sent by the base station, where the first signaling message carries the CE information.

The first signaling message may include a UE context recovery request message or an initialization UE message.

Optionally, the sending module 102 can be used to perform the step 102a or 102b in the embodiment shown in FIG. 3, where the sending module 102 is specifically configured to:

Sending a second signaling message to the second communications device, where the second signaling message carries the CE information; or

And sending an uplink data packet of the UE to the second communications device, where the uplink data packet carries the CE information.

The uplink data packet may be a non-IP data packet.

The second signaling message may be a modify bearer request message, which is not limited herein.

The first communication device provided by the foregoing embodiment receives the CE information of the UE and sends the CE information of the UE to the second communication device, so that the second communication device generates the CDR of the UE according to the CE information, thereby enabling the charging. When referring to CE information, it can realize differentiated charging for CE and improve the rationality of cost calculation.

As shown in FIG. 11 , an embodiment of the present invention provides a second communications device, where the second communications device may include a gateway device or a SCEF, where the gateway device may specifically include a PGW and/or an SGW. The second communication device can be used to perform the steps of the second communication device or gateway device or SCEF in any of the embodiments shown in FIG. 4 or FIGS. 6-9. The second communication device specifically includes: a receiving module 201 and a generating module 202.

The receiving module 201 is configured to receive CE information of the UE.

The generating module 202 is configured to generate a CDR of the UE according to the CE information received by the receiving module 201.

Optionally, the receiving module 201 is specifically configured to:

Receiving the CE information sent by the first communication device; or

Receiving, by the base station, a first uplink data packet of the UE, where the first uplink data packet carries the CE information.

Further, the receiving the CE information sent by the first communications device may include:

Receiving, by the first communications device, a second signaling message, where the second signaling message carries the CE information; or

Receiving, by the first communications device, the first uplink data packet of the UE, where the first uplink data packet carries the CE information.

The first communication device may be specifically an MME or another device whose function is equivalent to the MME.

Optionally, the generating module 202 is specifically configured to:

Generating a CDR of the UE according to the first uplink data packet and the CE information.

In a possible design, for example, in an uplink data transmission scenario, the second communication device receives the location a second signaling message sent by the first communications device, where the second signaling message carries the CE information of the UE. In this case, the receiving module 201 is further configured to receive the second uplink data packet of the UE.

The generating module 202 is further configured to generate the CDR of the UE according to the second uplink data packet received by the receiving module 201 and the CE information carried by the second signaling message.

In another possible design, for example, in a downlink data transmission scenario, the receiving module 201 is further configured to receive a downlink data packet of the UE.

The generating module 202 is further configured to generate a CDR of the UE according to the downlink data packet of the UE and the CE information received by the receiving module 201.

The second communication device provided by the foregoing embodiment, by receiving the CE information of the UE, and generating the CDR of the UE according to the CE information of the UE, implements differential charging for the CE, and improves the rationality of the cost calculation.

As shown in FIG. 12, an embodiment of the present invention provides a third communication device, which may be a base station or a UE, and may be used to perform a base station or any of the embodiments shown in FIG. 5 or FIG. 6-9. The steps of the UE. The third communication device may specifically include: an obtaining module 301 and a sending module 302.

The obtaining module 301 is configured to acquire CE information of the UE.

The sending module 302 is configured to send the CE information acquired by the obtaining module 301 to the second communications device, where the CE information is used by the second communications device to generate a CDR of the UE.

For the second communication device, the CE information, and the CDR, refer to the related description in the foregoing method embodiments, and details are not described herein.

In a possible design, when the third communication device is the UE, the sending module 302 is specifically configured to:

Sending the CE information to the second communication device by the first communication device.

Further, the sending, by the first communications device, the CE information to the second communications device includes:

Sending, by the NAS message carrying the CE information, the first communication device, the NAS And the information is used by the first communications device to send the CE information to the second communications device.

In another possible design, when the third communication device is a base station, the sending module 302 can be used to perform step 302a or 302b, as follows:

Sending a first signaling message carrying the CE information to the first communications device, where the first signaling message is used by the first communications device to send the CE information to the second communications device; or

And sending an uplink data packet to the second communications device, where the uplink data packet carries the CE information.

For the first signaling message, refer to the related description of the embodiment shown in FIG. 3.

The third communication device provided by the foregoing embodiment obtains the CE information of the UE, and sends the CE information of the UE to the second communication device, so that the second communication device generates the CDR according to the CE information, and implements differentiated charging for the CE. To improve the rationality of the cost calculation.

It should be noted that the division of the module in the embodiment of the present invention is schematic, and is only a logical function division. In actual implementation, there may be another division manner. In addition, each functional module in each embodiment of the present invention. It can be integrated in one processor, it can be physically present alone, or two or more modules can be integrated into one module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules.

As shown in FIG. 13 , an embodiment of the present invention provides another MME, where the MME may include a communication interface 401, a processor 402, and a memory 403. The memory 403 is configured to store program code executed by the processor 402. The processor 402 may be specifically configured to perform the steps of the first communication device or the MME in the embodiment shown in FIG. 3 or FIG. 7 or 8 or 9.

The processor 402 can be a central processing unit (English: central processing unit, CPU for short), or a digital processing unit or the like. The processor 402 receives and transmits messages via the communication interface 401.

For example, both the receiving module 101 and the transmitting module 102 in the embodiment shown in FIG. 10 can send or receive data packets or signaling messages through the communication interface 401.

The communication interface 401, the processor 402, and the memory 403 are not limited in the embodiment of the present invention. The specific connection medium between. In the embodiment of the present invention, the communication interface 401, the processor 402, and the memory 403 are connected by a bus 404 in FIG. 12, and the bus is indicated by a thick line in FIG. 13, and the connection manner between other components is only schematically illustrated. , not limited to. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in FIG. 13, but it does not mean that there is only one bus or one type of bus.

The memory 403 may be a volatile memory such as a RAM; the memory 403 may also be a non-volatile memory such as a ROM, a flash memory, an HDD, an SSD, or the memory 403 is a program that can be used to carry or store a desired program or a data structure. Code and any other medium that can be accessed by a computer, but is not limited thereto. The memory 403 may be a combination of the above memories.

As shown in FIG. 1314, the embodiment of the present invention provides another gateway device, the second communication device, which may be a gateway device or a SCEF, where the gateway device may include a PGW and/or an SGW.

The gateway device can include a communication interface 501, a processor 502, and a memory 503. The memory 503 is configured to store program code executed by the processor 502. The processor 502 may be specifically configured to perform the steps of the second communication device, the gateway device or the SCEF in any of the embodiments shown in FIG. 4 or FIG. 6-9.

The processor 502 can receive the CE information through the communication interface 501, and details are not described herein.

In addition, the memory, the bus, and the processor can be referred to the related description in the embodiment shown in FIG. 13 and will not be described again.

As shown in FIG. 15, the embodiment of the present invention provides another third communication device, which may be a UE or a base station. The third communication device can include a processor 601, a memory 602, and a transceiver 603.

The memory 602 is configured to store program code executed by the processor 601. The processor 601 may be specifically configured to perform the steps of the base station or the UE in any of the embodiments shown in FIG. 5 or FIG. 6-8.

Specifically, when the third communication device is the UE, the processor 601 may send the CE information to the second communication device by using the transceiver 603, and details are not described herein.

Optionally, when the third communication device is a base station, the communication interface 604 is further included, and the processor 601 can send the CE information to the second communication device through the communication interface 604, and details are not described herein.

It should be noted that the foregoing second communications device may be a SCEF or a gateway device, and the gateway device includes an SGW and/or a PGW.

In addition, the memory and the processor may refer to related descriptions in the embodiment shown in FIG. 13, and details are not described herein again.

It should be noted that the embodiment of the present invention further provides a system for generating a CDR, where the system includes:

The second communication device of the embodiment shown in FIG. 11 and the third communication device of the embodiment shown in FIG. 12, wherein the second communication device is configured to perform the step of the gateway device in the embodiment shown in FIG. 6, the third communication a device is used to perform the steps of the base station in the embodiment shown in FIG. 6; or

The second communication device of the embodiment shown in FIG. 11 above, the third communication device of the embodiment shown in FIG. 12, and the first communication device of the embodiment shown in FIG. 9; or

The second communication device of the embodiment shown in FIG. 14 and the third communication device of the embodiment shown in FIG. 15, wherein the second communication device is configured to perform the step of the gateway device in the embodiment shown in FIG. 6, the third communication a device is used to perform the steps of the base station in the embodiment shown in FIG. 6; or

The second communication device of the embodiment shown in FIG. 14 above, the third communication device of the embodiment shown in FIG. 15, and the first communication device of the embodiment shown in FIG.

It will be understood by those skilled in the art that all or part of the steps of implementing the foregoing method embodiments may be performed by hardware related to program instructions. The foregoing program may be stored in a computer readable storage medium, and when executed, the program includes The steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not limited thereto; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art It should be understood that the technical solutions described in the foregoing embodiments may be modified, or some of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. The scope of the program.

Claims (31)

A method for generating a CDR of a charging data record, comprising: Receiving, by the first communications device, coverage enhanced CE information of the user equipment UE; The first communication device sends the CE information to a second communication device, and the CE information is used by the second communication device to generate a charging data record CDR of the UE. The method according to claim 1, wherein the receiving, by the first communications device, CE information of the UE comprises: Receiving, by the first communications device, a non-access stratum NAS message sent by the UE, where the NAS message carries the CE information; or The first communications device receives a first signaling message sent by the base station, where the first signaling message carries the CE information. The method according to claim 2, wherein the transmitting, by the first communications device, the CE information to the second communications device comprises: The first communication device sends a second signaling message to the second communications device, where the second signaling message carries the CE information; or The first communications device sends an uplink data packet of the UE to the second communications device, where the uplink data packet carries the CE information. The method according to claim 3, wherein the first signaling message comprises a UE context recovery request message or an initialization UE message, and the second signaling message comprises a modify bearer request message or a service capability opening function SCEF. Connection request message. A method for generating a CDR of a charging data record, comprising: Receiving, by the second communications device, coverage enhanced CE information of the user equipment UE; The second communications device generates a charging data record CDR of the UE according to the CE information. The method according to claim 5, wherein the receiving, by the second communications device, CE information of the UE comprises: Receiving, by the second communications device, the CE information sent by the first communications device; or The second communications device receives the first uplink data packet of the UE that is sent by the base station, where the first uplink data packet carries the CE information. The method according to claim 6, wherein the receiving, by the second communications device, the CE information sent by the first communications device comprises: Receiving, by the second communications device, a second signaling message sent by the first communications device, where the second signaling message carries the CE information; or Receiving, by the second communications device, the first uplink data packet of the UE that is sent by the first communications device, where the first uplink data packet carries the CE information. The method according to claim 6 or 7, wherein the second communication device generates the CDR of the UE according to the CE information, including: The second communications device generates a CDR of the UE according to the first uplink data packet and the CE information. The method of claim 7 wherein: After the second communications device receives the second signaling message sent by the first communications device, the method further includes: Receiving, by the second communications device, the second uplink data packet of the UE; Generating, by the second communications device, the CDR of the UE according to the CE information, including: The second communications device generates a CDR of the UE according to the second uplink data packet and the CE information. The method according to any one of claims 5-9, wherein the second communication device generates the CDR of the UE according to the CE information, including: Receiving, by the second communications device, a downlink data packet of the UE; The second communications device generates a downlink CDR of the UE according to the downlink data packet of the UE and the CE information. A method for generating a CDR of a charging data record, comprising: The third communication device acquires coverage enhanced CE information of the user equipment UE; The third communication device sends the CE information to the second communications device, where the CE information is used by the second communications device to generate a CDR of the UE. The method according to claim 11, wherein the third communication device is the UE, and the third communication device sends the CE information to the second communication device, including: The UE sends the CE information to the second communications device by using the first communications device. The method according to claim 12, wherein the transmitting, by the first communication device, the CE information to the second communications device by the UE includes: Transmitting, by the UE, a non-access stratum NAS message carrying the CE information to the first communications device, where the NAS message is used by the first communications device to send the CE information to the second communications device . The method according to claim 11, wherein the third communication device is a base station, and the third communication device sends the CE information to the second communication device, including: The base station sends a first signaling message carrying the CE information to the first communications device, where the first signaling message is used by the first communications device to send the CE information to the second communications device ;or, The base station sends an uplink data packet to the second communications device, where the uplink data packet carries the CE information. The method according to any one of claims 1 to 14, wherein the CE information comprises at least one of the following: CE indication information, CE level information, and CE mode information; The CE indication information is used to indicate that the UE uses a CE function, the CE level information is used to indicate a CE level used by the UE, and the CE mode information is used to indicate a CE mode adopted by the UE. A first communication device, comprising: a receiving module, configured to receive coverage enhanced CE information of the user equipment UE; And a sending module, configured to send the CE information received by the receiving module to the second communications device, where the CE information is used by the second communications device to generate a charging data record CDR of the UE. The first communication device according to claim 16, wherein the receiving module is specifically configured to: Receiving a non-access stratum NAS message sent by the UE, where the NAS message carries the CE information; or Receiving a first signaling message sent by the base station, where the first signaling message carries the CE information. The first communication device according to claim 17, wherein the sending module is specifically configured to: Sending a second signaling message to the second communications device, where the second signaling message carries the CE information; or And sending an uplink data packet of the UE to the second communications device, where the uplink data packet carries the CE information. The first communication device according to claim 18, wherein the first signaling message comprises a UE context recovery request message or an initialization UE message, and the second signaling message is a modify bearer request message. A second communication device, comprising: a receiving module, configured to receive coverage enhanced CE information of the user equipment UE; And a generating module, configured to generate a charging data record CDR of the UE according to the CE information received by the receiving module. The second communication device according to claim 20, wherein the receiving module is specifically configured to: Receiving the CE information sent by the first communication device; or Receiving, by the base station, a first uplink data packet of the UE, where the first uplink data packet carries the CE information. The second communication device according to claim 21, wherein the receiving the CE information sent by the first communication device comprises: Receiving a second signaling message sent by the first communications device, where the second signaling message carries the CE information; or, Receiving, by the first communications device, the first uplink data packet of the UE, where the first uplink data packet carries the CE information. The second communication device according to claim 21 or 22, wherein the generating module is specifically configured to: Generating a CDR of the UE according to the first uplink data packet and the CE information. A second communication device according to claim 22, wherein: The receiving module is further configured to receive a second uplink data packet of the UE; The generating module is further configured to generate a CDR of the UE according to the second uplink data packet and the CE information received by the receiving module. A second communication device according to any one of claims 20-24, characterized in that: The receiving module is further configured to receive a downlink data packet of the UE; The generating module is further configured to generate a CDR of the UE according to the downlink data packet of the UE and the CE information. A third communication device, wherein the third communication device is a base station or a user equipment UE, and the third communication device includes: An acquiring module, configured to acquire coverage enhanced CE information of the UE; And a sending module, configured to send the CE information acquired by the acquiring module to the second communications device, where the CE information is used by the second communications device to generate a CDR of the UE. The third communication device according to claim 26, wherein the third communication device is the UE, and the sending module is specifically configured to: Sending the CE information to the second communication device by the first communication device. The third communication device according to claim 27, wherein the transmitting the CE information to the second communication device by using the first communication device comprises: Sending, by the first communication device, the non-access stratum NAS message carrying the CE information to the first communications device, where the NAS message is sent by the first communications device to the second communications device. The third communication device according to claim 26, wherein the third communication device is a base station, and the sending module is specifically configured to: Sending a first signaling message carrying the CE information to the first communications device, where the first signaling message is used by the first communications device to send the CE information to the second communications device; or And sending an uplink data packet to the second communications device, where the uplink data packet carries the CE information. The first communication device according to any one of claims 16 to 19, or the second communication device according to any one of claims 20 to 25, or the third communication device according to any one of 26 to 29, The CE information includes at least one of the following: CE indication information, CE level information, and CE mode information; The CE indication information is used to indicate that the UE uses a CE function, the CE level information is used to indicate a CE level used by the UE, and the CE mode information is used to indicate a CE mode adopted by the UE. The method according to any one of claims 1 to 15, or the communication device according to any one of claims 16 to 30, wherein the first communication device is a mobility management entity MME, and the second communication device is a service capability. Open function SCEF or gateway device.

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