CN102300175A - Message sending and receiving methods, equipment and systems - Google Patents

Abstract

The embodiment of the present invention provides a message sending and receiving method, device and system, wherein the message sending method includes: a mobile management entity receives an earthquake and tsunami warning system message; When the earthquake and tsunami warning system message stored by itself is different, the mobility management entity sets an information change flag; the mobility management entity sends and receives the earthquake and tsunami warning system message and the information change flag. In the embodiment of the present invention, the MME decides whether to send the ETWS message to the eNB, so that the eNB only needs to transparently transmit the received message to the UE without judging the content of the ETWS message, which reduces the complexity of the signaling process for the eNB to send the ETWS message degree, reducing the load on the access network equipment.

Description

Message sending and receiving method, device and system

technical field

The present invention relates to mobile communication technology, in particular to a message sending and receiving method, device and system.

Background technique

Long Term Evolution (LTE) is a next-generation mobile broadband network standard formulated by the 3rd Generation Partnership Project (3GPP) standardization organization. It has high spectrum utilization and transmission speed, and low The advantages of transmission delay and so on.

By carrying the earthquake and tsunami warning system (Earthquake and Tsunami Warning System, ETWS) message in the LTE system message sent to the user equipment (User Equipment, UE), the LTE system can promptly notify the user of the tsunami warning indication when an earthquake or tsunami occurs, Post-disaster rescue and other relevant information.

ETWS messages are divided into Primary Notification (PN) and Secondary Notification (SN). The PN carries less content, which is mainly used for notifying more urgent events; the SN carries more content, which is mainly used for publishing relevant information after an emergency event. Since the ETWS system is mainly used in special occasions such as early warning and disaster relief, the transmission of ETWS messages, especially the transmission of PN information, requires a high delay.

The inventor finds in the process of realizing the present invention:

In the solution provided by the prior art, the signaling process of sending the ETWS message to the UE by the evolved base station (eNB) is relatively complicated.

Contents of the invention

The embodiments of the present invention aim at the problems existing in the prior art, and provide message sending and receiving methods, devices and systems, which can reduce the complexity of the signaling process for the eNB to send ETWS messages.

An embodiment of the present invention provides a message sending method, the method including:

The MME receives the Earthquake Tsunami Warning System message;

When the received earthquake and tsunami warning system message is different from the earthquake and tsunami warning system message saved by the mobility management entity itself, the mobility management entity sets an information change flag;

The earthquake and tsunami warning system message and information change identifier sent and received by the mobility management entity.

The embodiment of the present invention also provides a message receiving method, including:

User equipment is handed over or reselected from cell A to neighboring cell B;

The user equipment reads the area identifier carried in the system message of the neighboring cell B, where the area identifier is used to indicate the area to which the cell B belongs;

When the area identifier is different from the area identifier stored by the user terminal itself, the user terminal reads the earthquake and tsunami warning system message carried in the system message.

The embodiment of the present invention also provides a message receiving method, including:

The evolved base station reads the sequence number in the system message;

When the sequence number is different from the received sequence number, the eNB sends the earthquake and tsunami warning system message carried in the system message to the user equipment.

The embodiment of the present invention also provides a mobility management entity, including:

A receiving unit for receiving earthquake and tsunami warning system messages;

A setting unit, configured to set an information change flag when the received earthquake and tsunami warning system message is different from the earthquake and tsunami warning system message stored by the mobility management entity itself; and

A sending unit, configured to send the earthquake and tsunami warning system message received by the receiving unit and the information change flag set by the setting unit.

The embodiment of the present invention also provides a user equipment, including:

The execution unit is configured to read the area identifier carried in the system message of the adjacent cell B to which the handover or reselection is performed, and the area identifier is used to indicate the area to which the cell B belongs; and

The reading unit is configured to read the earthquake and tsunami warning system message carried in the system message when the area identifier is different from the area identifier stored by the user equipment itself.

The embodiment of the present invention also provides an evolved base station, including:

operating unit for reading serial numbers in system messages; and

A sending unit, configured to send the earthquake and tsunami warning system message carried in the system message when the serial number is different from the received serial number.

An embodiment of the present invention also provides a system, including a mobility management entity, where the mobility management entity is configured to receive an earthquake and tsunami warning system message. When the received earthquake and tsunami warning system message is consistent with the earthquake When the tsunami warning system message is different, an information change flag is set, and the received earthquake and tsunami warning system message and the information change flag are sent.

In the embodiment of the present invention, the MME decides whether to send the ETWS message to the eNB, so that the eNB only needs to transparently transmit the received message to the UE without judging the content of the ETWS message, which reduces the complexity of the signaling process for the eNB to send the ETWS message degree, reducing the load on the access network equipment.

Description of drawings

FIG. 1 is a schematic flow diagram of Embodiment 1 of the present invention;

FIG. 2 is a schematic flow diagram of Embodiment 2 of the present invention;

FIG. 3 is a schematic flow chart of Embodiment 3 of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

As shown in Figure 1, it is a schematic flow chart of Embodiment 1 of the present invention. Embodiment 1 of the present invention provides a message sending method, which specifically includes the following steps:

S101. The Mobility Management Entity (MME) receives the ETWS message;

Wherein, the ETWS message may include one or more of PN message and SN message.

S102. When the received ETWS message is different from the ETWS message stored by the MME itself, the MME sets an information change flag;

Wherein, when the received ETWS message is a PN message, the MME compares it with the PN message stored by itself, and if they are different, changes the value of the information change flag, for example, adds 1 to the original value.

Further, the MME may set a special area to store the information change identifier, or may perform caching, directly write the set information change identifier into a certain message in the subsequent processing process, and send it.

S103. The MME sends the received ETWS message and information change identifier to the eNB.

Wherein, the MME can carry the ETWS message in the system message, and send it to the eNB in the form of broadcast, multicast or unicast. The information change identifier can be carried in the same system message as the ETWS message.

Preferably, the MME can set an eNB list for storing eNB information, and the MME can send the send ETWS message to the eNBs in the list. For example, according to the information in the list, eNB1 and eNB2 belong to the same emergency area (Emergency Area) A, and eNB3 and eNB4 belong to the same emergency area B, then the MME can send the ETWS message to each base station in the emergency area A, namely eNB1 With eNB2, ETWS messages can also be sent to the base stations in emergency areas A and B, namely eNB1 to eNB4.

In this embodiment, the MME may further save the received ETWS message, so that the MME can obtain a more accurate result when comparing the newly received ETWS message with the ETWS message saved by itself next time.

It should be noted that when the ETWS message received by the MME in S101 is the same as the ETWS message stored by the MME itself, the MME does not need to set the information change flag, and may not store the received ETWS message.

An optional system message involved in this embodiment of the present invention may be the SIB1 syntax structure shown below, where the information change identifier is marked with an underline.

Optionally, the system message involved in the embodiment of the present invention may also be the SIB11 syntax structure shown below, where the information change identifier is marked with an underline. Therefore, the complexity of system message scheduling is reduced, and the system overhead is reduced.

In this embodiment, the MME decides whether to send the ETWS message to the eNB, so that the eNB only needs to transparently transmit the received message to the UE without judging the content of the ETWS message, which reduces the signaling process for the eNB to send the ETWS message Complexity, reducing the load on the access network equipment.

As shown in FIG. 2, it is a schematic flow diagram of Embodiment 2 of the present invention. Embodiment 2 of the present invention provides a method for receiving a message. The process of receiving a message by a UE specifically includes the following steps:

S201. Switching or reselecting from cell A to adjacent cell B;

S202. Read the area identifier carried in the system message of the above-mentioned adjacent cell;

Wherein, the area identifier is used to indicate the area to which the cell belongs. Specifically, when cell A and neighboring cell B belong to the same area, such as emergency area X, the area IDs of the two cells are the same; when the two cells belong to two different areas, the area IDs of the two cells are different.

S203. When the above-mentioned area ID is different from the area ID stored by itself, read the ETWS message carried in the above-mentioned system message.

Preferably, the UE may save the ETWS message read in S203, or save the area identifier read in S202, so as to avoid reading the same message as the previously received ETWS message to a certain extent. If the UE saves both the read ETWS message and the read area identifier, the UE can avoid reading the same message as the previously received ETWS message to the greatest extent.

The applicable scenarios of this embodiment include: when the UE moves from one cell to another, the UE judges whether it is necessary to re-read the system information, and if so, the UE re-reads all the system information, including the ETWS message, but in the same In the area, the content of the ETWS message is the same, and the UE repeatedly reads the same ETWS message, which will cause unnecessary power consumption. By applying this embodiment, the UE does not need to repeatedly read the ETWS messages in the system messages of different cells belonging to the same area, thereby realizing power saving.

It should be noted that the system message can be sent between the MME and the eNB in the form of broadcast. The MME can receive the ETWS message sent by the Cell Broadcast Center (CBC), and then send it to the eNB through the S1 interface with the eNB. When an eNB belongs to at least two areas at the same time, the eNB can receive ETWS messages sent from MMEs in at least two areas. Then, the MME can use a serial number (serial number) to mark the ETWS message sent by itself for each MME, so that the eNB can distinguish from which MME each ETWS message comes from according to the serial number. Specifically, ETWS messages sent by the same MME correspond to the same serial number, and ETWS messages sent by different MMEs correspond to different serial numbers. The above sequence number can be used as a part of the ETWS message, and can also be carried in the same system message as the ETWS message.

As shown in Figure 3, it is a schematic flow chart of Embodiment 3 of the present invention. Embodiment 3 of the present invention provides a message receiving method, which specifically includes the following steps:

S301. The eNB reads the serial number in the system message;

S302. When the above sequence number is different from the sequence number received by the eNB, the eNB sends the ETWS message carried in the above system message to the UE.

Further, when the above sequence number is the same as the sequence number already received by the eNB, the eNB may not read the ETWS message, or may not send the read ETWS message to the UE.

In this embodiment, the eNB can determine whether the received message is duplicated with the previously received message by comparing whether the sequence numbers in the ETWS message are the same, so as to improve the efficiency of the eNB in sending messages.

In addition, when the eNB forwards the ETWS message from the MME to the UE, it can adopt a transparent transmission method, and can also establish a corresponding relationship between the serial number of the ETWS message and the information change identifier in the system message, or the serial number of the ETWS message and the area in the system message. The corresponding relationship of the identification, taking the former as an example, when the eNB sends the ETWS message to the UE, it modifies the sequence number that has a mapping relationship with the information change identification to the information change identification and sends it to the UE, so as to ensure that the ETWS message received by the eNB and The consistency of the ETWS messages sent to the UE facilitates the UE to read the messages in the same way.

It should be noted that the above embodiments of the present invention can be combined to better reduce the complexity of the signaling process and improve the message sending efficiency.

Embodiment 4 of the present invention provides a mobility management entity MME, the MME includes:

a receiving unit, configured to receive an ETWS message;

A setting unit, configured to set an information change flag when the received ETWS message is different from the ETWS message stored by the MME itself;

A sending unit, configured to send the ETWS message received by the receiving unit and the information change flag set by the setting unit.

The MME may also include a saving unit, configured to save the received ETWS message and/or the information change identifier.

Embodiment 5 of the present invention provides a user equipment UE, where the UE includes:

The execution unit is configured to read the area identifier carried in the system message of the adjacent cell B to which the handover or reselection is performed, and the area identifier is used to indicate the area to which the cell belongs;

A reading unit, configured to read the ETWS message carried in the system message when the area identifier is different from the area identifier stored by the UE itself.

The UE may further include a saving unit, configured to save the read ETWS message and/or the read area identifier.

Embodiment 6 of the present invention provides an evolved base station eNB, where the eNB includes:

Operating unit for reading serial numbers in system messages;

A sending unit, configured to send the ETWS message carried in the system message when the serial number is different from the received serial number.

The eNB may also include a conversion unit, configured to modify the sequence number that has a mapping relationship with the information change identifier carried in the system message to an information change identifier according to the correspondence between the sequence number and the information change identifier in the system message; then The sending unit is also used for sending an information change identifier.

Embodiment 7 of the present invention provides a system, the system includes a mobility management entity MME, the MME is used to receive an ETWS message, and when the received ETWS message is different from the ETWS message stored by the MME itself, set an information change flag, And send the received ETWS message and information change identifier.

Embodiment 8 of the present invention provides a system, the system includes a user equipment UE, and the UE is configured to read the area carried in the system message of the neighboring cell B when switching or reselecting from a cell A to a neighboring cell B ID, the area ID is used to indicate the area to which the cell belongs; when the area ID is different from the area ID stored by the UE itself, read the ETWS message carried in the system message.

Embodiment 9 of the present invention provides a system, the system includes an evolved base station eNB, and the eNB is used to read the serial number in the system message; when the serial number is different from the received serial number, the eNB will read the above The ETWS message carried in the system message is sent to the user equipment UE.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (4)

1. A message receiving method, characterized in that, comprising: User equipment is handed over or reselected from cell A to neighboring cell B; The user equipment reads the area identifier carried in the system message of the neighboring cell B, where the area identifier is used to indicate the area to which the cell B belongs; When the area identifier is different from the area identifier stored by the user equipment itself, the user equipment reads the earthquake and tsunami warning system message carried in the system message. 2. The method according to claim 1, further comprising: The user equipment saves the read earthquake and tsunami warning system message and/or the read area identifier. 3. A user equipment, characterized in that, comprising: The execution unit is configured to read the area identifier carried in the system message of the adjacent cell B to which the handover or reselection is performed, and the area identifier is used to indicate the area to which the cell B belongs; and The reading unit is configured to read the earthquake and tsunami warning system message carried in the system message when the area identifier is different from the area identifier stored by the user equipment itself. 4. The user equipment according to claim 3, further comprising: A saving unit, configured to save the earthquake and tsunami warning system message read by the reading unit, and/or the area identification read by the executing unit.

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