WO2021031937A1

WO2021031937A1 - Information indication method and device, information receiving method and device, and storage medium

Info

Publication number: WO2021031937A1
Application number: PCT/CN2020/108481
Authority: WO
Inventors: 边峦剑; 戴博; 刘锟; 方惠英; 胡有军; 杨维维
Original assignee: 中兴通讯股份有限公司
Priority date: 2019-08-16
Filing date: 2020-08-11
Publication date: 2021-02-25
Also published as: CN111093174A

Abstract

The present application provides an information indication method and device, an information receiving method and device, and a storage medium. The information indication method comprises: a first communication node sending a downlink control information format to a second communication node, the downlink control information format including an earthquake and tsunami warning system (ETWS) indication field, a commercial mobile alert service (CMAS) indication field and a first bit field, the ETWS indication field being used for determining an ETWS indication, and the CMAS indication field being used for determining a CMAS indication.

Description

Information indicating method and device, information receiving method and device, and storage medium

This application claims the priority of the Chinese patent application filed with the Chinese Patent Office with application number 201910762621.6 on August 16, 2019. The entire content of this application is incorporated into this application by reference.

Technical field

This application relates to a wireless communication network, for example, to an information indicating method and device, an information receiving method and device, and a storage medium.

Background technique

In the related technology eMTC (Enhanced Machine Type Communication) system, the terminal in the idle state obtains the Earthquake and Tsunami Warning System (ETWS) by detecting the downlink control channel type 1 public search space. Information and commercial mobile alert service (Commercial Mobile Alert Service, CMAS) information. In the eMTC connection state, the terminal does not detect the downlink control channel type 1 public search space, so it cannot obtain the earthquake and tsunami warning system ETWS information and the commercial mobile warning service CMAS information. However, there are application scenarios and application requirements for notifying these two pieces of information to the connected terminal. Therefore, in the eMTC connected state, the downlink control channel type 0 common search space is used for ETWS and CMAS indication. However, issues such as which downlink control information format is used to indicate ETWS and CMAS, and the details of the indicated content have not been resolved.

Summary of the invention

This application provides methods and devices for information indication, methods and devices for information reception, and storage media.

The embodiment of the present application provides an information indication method, including:

The first communication node sends a downlink control information format to the second communication node;

The downlink control information format includes an earthquake and tsunami warning system ETWS indicator field, a commercial mobile alert service CMAS indicator field and a first bit field; the ETWS indicator field is used to determine the ETWS indicator, and the CMAS indicator field is used to determine the CMAS indicator.

The embodiment of the application provides an information receiving method, including:

The second communication node receives the downlink control information format sent by the first communication node;

The downlink control information format includes an ETWS indicator field, a CMAS indicator field and a first bit field; the ETWS indicator field is used to determine the ETWS indicator, and the CMAS indicator field is used to determine the CMAS indicator.

An embodiment of the present application provides an information indicating device, including:

Sending module: used to send the downlink control information format to the second communication node through the first communication node;

An embodiment of the present application provides an information receiving device, including:

Receiving module: used for the second communication node to receive the downlink control information format sent by the first communication node;

The downlink control information format includes an ETWS indication field, a CMAS indication field and a first bit field; the ETWS indication field is used to determine the ETWS indication, and the CMAS indication field is used to determine the CMAS indication.

An embodiment of the present application provides a storage medium that stores a computer program, and when the computer program is executed by a processor, any one of the methods in the embodiments of the present application is implemented.

Regarding the above embodiments and other aspects of the present application and their implementation manners, more descriptions are provided in the description of the drawings, specific implementation manners, and claims.

Description of the drawings

Fig. 1 is a schematic flowchart of an information indication method provided by an embodiment of the application.

FIG. 2 is a schematic flowchart of an information receiving method provided by an embodiment of the application.

Fig. 3 is a schematic flow diagram of the information indication method provided by an example of this application.

Fig. 4 is a schematic flowchart of the information receiving method provided by the example of the application.

Fig. 5 is a schematic flowchart of the information receiving method provided by an example of this application.

Fig. 6 is a schematic structural diagram of an information indicating device provided by an embodiment of the application.

FIG. 7 is a schematic structural diagram of an information receiving device provided by an embodiment of the application.

FIG. 8 is a schematic structural diagram of a user equipment provided by an embodiment of the application.

Figure 9 is a schematic structural diagram of a base station provided by an embodiment of the application.

Fig. 10 is a schematic structural diagram of a communication system provided by an embodiment of the application.

detailed description

Hereinafter, the embodiments of the present application will be described with reference to the drawings. It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other arbitrarily if there is no conflict.

This application first provides an information indication method, as shown in Figure 1, including:

Step S11: The first communication node sends a downlink control information format (Downlink Control Information format, DCI format) to the second communication node.

The downlink control information format includes the earthquake and tsunami warning system ETWS indication field, the commercial mobile alert service CMAS indication field and the first bit field; the ETWS indication field is used to determine the ETWS indication, and the CMAS indication field is used to Determine the CMAS indication (CMAS indication).

In the embodiment of the present application, the first communication node may be a base station, and the second communication node may be a terminal. The first communication node may also be other communication devices, and the second communication node may be other devices with a communication receiving function. Further, the second communication node may be a terminal working under the eMTC system. Further, the first communication node and the second communication node communicate in the eMTC system connection state.

In the embodiment of the present application, the downlink control information format includes information content such as signaling, and the conventional format can be used, or other custom formats can be used. In the embodiment of the present application, the ETWS indication domain corresponds to one configuration parameter, and the CMAS indication domain corresponds to one configuration parameter. The values of the ETWS indication field and the CMAS indication field are the values of their corresponding configuration parameters. The ETWS indication may include an indication of the ETWS main notification and/or ETWS secondary notification. The CMAS indication may include an indication of CMAS notification. Using the method provided in the embodiments of the present application, ETWS information notification and/or CMAS information notification can be performed in the eMTC system link state. In an implementation manner, the first bit field includes a first value bit with the same value.

For example, the first bit field contains 10 bits, and each bit has a value of 0 or 1. Or, the first bit field contains 5 bits, and each bit has a value of 0 or 1.

In the embodiment of the present application, all or part of the bits in the first bit field can be used as an additional check for decoding to reduce the false alarm rate.

In an embodiment, the first bit field includes reserved bits of the second value and bits of the same value of the third value; the second value is not less than 1, and the third value is greater than 1.

In this embodiment of the present application, the values of the bits with the same value of the third value may be all 0 or all 1. The bits with the same value of the third value can be used as an additional check for decoding to reduce the false alarm rate. The second value reserved bits can be used to indicate other information.

In one embodiment, for coverage enhancement mode A (Coverage Enhancement Mode A, CE Mode A), the total number of bits in the ETWS indicator field, CMAS indicator field, and first bit field is equal to the downlink control information format 6-0A( DCI format 6-0A) number of bits. DCI format 6-0A contains the number of bits according to the protocol search. Because the total number of bits in the downlink control information format described in this embodiment under CE mode A is equal to the number of bits in the downlink control information format 6-0A, the number of times the second communication node blindly detects the downlink control information will not increase.

In one embodiment, for coverage enhancement mode B (Coverage Enhancement Mode B, CE Mode B), the total number of bits in the ETWS indicator field, CMAS indicator field, and first bit field is equal to the downlink control information format 6-0B( DCI format 6-0B) the number of bits. The number of bits contained in DCI format 6-0B is obtained according to the protocol search. Because the total number of bits in the downlink control information format described in this embodiment under CE mode B is equal to the number of bits in the downlink control information format 6-0B, the number of times the second communication node blindly detects the downlink control information will not increase.

In an implementation manner, the second value of reserved bits includes a master information block (Master Indication Block, MIB) indication field, and the master information block indication field is used to indicate the content change of the master information block. If the main information block indication field indicates that the system information in the main information block has changed, the second communication node needs to detect the MIB again.

In an implementation manner, the second value reserved bits include a system information block type 1 (System Information Block 1, SIB1) scheduling information field, and the system information block type 1 scheduling information field is used to indicate the system Number of repetitions of information block type 1 and transmission block size.

In an embodiment, the method further includes: determining a radio network temporary identifier (RNTI) used for the downlink control information format including the ETWS indication field, the CMAS indication field, and the first bit field; Scrambling the transmission bits of the downlink control information format by using the wireless network temporary identifier. In one embodiment, in the narrowband Internet of Things, the control channel search space used to transmit the ETWS indication and CMAS indication has the same carrier configuration, starting subframe configuration, and maximum repetition number configuration as the search space dedicated to the control channel terminal .

As shown in FIG. 2, an embodiment of the present application also provides an information receiving method, including:

Step S21: The second communication node receives the downlink control information format sent by the first communication node.

In an implementation manner, the first bit field includes a first value bit with the same value. All or part of the bits in the first bit field can be used as an additional check for decoding to reduce the false alarm rate.

In an embodiment, the first bit field includes reserved bits of the second value and bits of the same value of the third value; the second value is not less than 1, and the third value is greater than 1. The values of the bits with the same value of the third value may be all 0 or all 1s. The second value reserved bits can be used to indicate other information. The bits with the same value of the third value can be used as an additional check for decoding to reduce the false alarm rate.

In the embodiment of the present application, the downlink control information format includes information content such as signaling, and the conventional format can be used, or other custom formats can be used.

Using the method provided in the embodiments of the present application, ETWS information notification and/or CMAS information notification can be performed in the eMTC system connection state, and the number of blind detection of downlink control information by the second communication node is not increased.

In one embodiment, the second communication node receives the ETWS indication, and the method further includes: in the case that the value of the ETWS indication field is a fourth value, the second communication node detects the corresponding ETWS main notification System Information Block (System Information Block, SIB) type; in the case where the value of the ETWS indication field is the fifth value, the second communication node detects the system information block type corresponding to the ETWS main notification and the ETWS secondary notification The corresponding system information block type.

In an embodiment, the second communication node receives the ETWS indication, and the method further includes: in the case that the value of the ETWS indication field is a fourth value, the second communication node detects SIB1 and obtains Scheduling information list; if the scheduling information list indicates that the system information block type corresponding to the ETWS main notification and/or the system information block type corresponding to the ETWS secondary notification exists, the second communication node detects that the ETWS main notification The system information block type corresponding to the notification and/or the system information block type corresponding to the ETWS secondary notification; when the value of the ETWS indication field is the fifth value, the second communication node detects that the ETWS main notification corresponds to Type of system information block; in the case that the value of the ETWS indication field is the sixth value, the second communication node detects the system information block type corresponding to the ETWS main notification and the system information block type corresponding to the ETWS auxiliary notification .

In an embodiment, the second communication node receives the ETWS indication, and the method further includes: in the case that the value of the ETWS indication field is a fourth value, the second communication node detects the master information block MIB; According to the information in the MIB, the second communication node detects SIB1 and obtains the scheduling information list in SIB1; if the scheduling information list indicates the system information block type corresponding to the ETWS primary notification and/or the ETWS secondary notification corresponding If the system information block type exists, the second communication node detects the system information block type corresponding to the ETWS main notification and/or the system information block type corresponding to the ETWS auxiliary notification; the value of the ETWS indication field In the case of the fifth value, the second communication node detects the system information block type 1, and obtains the scheduling information list in the system information block type 1; if the scheduling information list indicates the system information block type corresponding to the ETWS main notification And/or the system information block type corresponding to the ETWS auxiliary notification exists, the second communication node detects the system information block type corresponding to the ETWS main notification and/or the system information block type corresponding to the ETWS auxiliary notification .

In an embodiment, the second communication node receives an ETWS indication, and the first bit field includes a master information block MIB indication field; the method further includes: the value of the ETWS indication field is the seventh value and the When the value of the MIB indication field of the main information block is the seventh value, the second communication node detects the main information block MIB; according to the information in the MIB, the second communication node detects SIB1 and obtains the schedule in SIB1 Information list; if the scheduling information list indicates that the system information block type corresponding to the ETWS main notification and/or the system information block type corresponding to the ETWS secondary notification exists, the second communication node detects the ETWS main notification The corresponding system information block type and/or the system information block type corresponding to the ETWS auxiliary notification.

In the case where the value of the ETWS indication field is the seventh value and the value of the MIB indication field of the main information block is the eighth value, the second communication node does not detect MIB, directly detects SIB1, and obtains the schedule in SIB1 Information list; if the scheduling information list indicates that the system information block type corresponding to the ETWS main notification and/or the system information block type corresponding to the ETWS secondary notification exists, the second communication node detects the ETWS main notification The corresponding system information block type and/or the system information block type corresponding to the ETWS auxiliary notification. The ETWS indication field and the MIB indication field may both be 1-bit information, and the seventh value is equal to 1, and the eighth value is equal to zero.

In an embodiment, the second communication node receives the CMAS indication, and the method further includes: in the case that the value of the CMAS indication field is a ninth value, the second communication node detects the system corresponding to the CMAS notification Information block type.

In an embodiment, the second communication node receives the CMAS indication, and the method further includes: in the case that the value of the CMAS indication field is the ninth value, the second communication node detects SIB1, and obtains the value of SIB1. Scheduling information list; if the scheduling information list indicates that the system information block type corresponding to the CMAS notification exists, the second communication node detects the system information block type corresponding to the CMAS notification; in the CMAS indication field When the value of is the tenth value, the second communication node detects the system information block type corresponding to the CMAS notification.

In an embodiment, the second communication node receives the CMAS indication, and the method further includes: in the case that the value of the CMAS indication field is a ninth value, the second communication node detects the master information block MIB; According to the information in the MIB, the second communication node detects the system information block type 1, and obtains the scheduling information list in the system information block type 1; if the scheduling information list indicates that the system information block type corresponding to the CMAS notification exists , The second communication node detects the system information block type corresponding to the CMAS notification; when the value of the CMAS indication field is the tenth value, the second communication node detects the system information block type 1 , Acquire the scheduling information list in the system information block type 1; if the scheduling information list indicates that the system information block type corresponding to the CMAS notification exists, the second communication node detects the system information corresponding to the CMAS notification Block type.

In an implementation manner, the second communication node receives the CMAS indication, the first bit field includes a master information block MIB indication field; the method further includes: the value of the CMAS indication field is the eleventh value and When the value of the MIB indication field of the main information block is the eleventh value, the second communication node detects the main information block MIB; according to the information in the MIB, the second communication node detects SIB1 and obtains If the scheduling information list indicates that the system information block type corresponding to the CMAS notification exists, the second communication node detects the system information block type corresponding to the CMAS notification.

In the case that the value of the CMAS indication field is the eleventh value and the value of the main information block MIB indication field is the twelfth value, the second communication node detects SIB1 and obtains the scheduling information list in SIB1; If the scheduling information list indicates that the system information block type corresponding to the CMAS notification exists, the second communication node detects the system information block type corresponding to the CMAS notification. The CMAS indication field and the MIB indication field may both be 1-bit information, and the eleventh value is equal to 1, and the twelfth value is equal to zero.

The following is an example of this application.

Example one

The system information indication method provided in this example includes: the first communication node sends the downlink control information format to the second communication node. The downlink control information format includes an earthquake and tsunami warning system ETWS indicator field, a commercial mobile alert service CMAS indicator field and a first bit field; the ETWS indicator field is used to determine the ETWS indicator, and the CMAS indicator field is used to determine the CMAS indicator.

In this example, the ETWS indication field corresponds to a high-level configuration parameter P1, and the high-level configuration parameter P1 includes k1 bits. The CMAS indication field corresponds to a high-level configuration parameter P2. The high-level configuration parameter P2 includes k2 bits, and both k1 and k2 are greater than or equal to 1. The value of the ETWS indication field is the value of the high-level configuration parameter P1, and the value of the CMAS indication field is the value of the high-level configuration parameter P2. The ETWS indication field is used to indicate ETWS main notification and/or ETWS secondary notification; the CMAS indication field is used to indicate CMAS notification.

In this example, the ETWS indication field can also refer to the configuration parameters of the system information block type corresponding to the ETWS main notification and/or the configuration parameters of the system information block type corresponding to the ETWS auxiliary notification, which corresponds to the ETWS main notification The configuration parameter of the system information block type and/or the configuration parameter of the system information block type corresponding to the ETWS auxiliary notification indicates the scheduling information change of the system information block type corresponding to the ETWS, that is, the system information block type and/or corresponding to the ETWS main notification Or whether the system information block type corresponding to the ETWS auxiliary notification is scheduled. Similarly, the CMAS indication field may also refer to the configuration parameter of the system information block type corresponding to the CMAS notification, and the configuration parameter of the system information block type corresponding to the CMAS notification indicates the scheduling information of the system information block type corresponding to the CMAS. Change, that is, whether the system information block type corresponding to the CMAS notification is scheduled.

In this example, in eMTC, the system information block type corresponding to the ETWS main notification is system information block type 10, namely SIB10; the system information block type corresponding to the ETWS auxiliary notification is system information block type 11, namely SIB11; CMAS notification The corresponding system information block type is system information block type 12, namely SIB12.

In this example, the first bit field contains bits whose first value is all 0 or all 1, and the first value is greater than 1. When decoding, the terminal can use all or part of the bits in the first bit field as additional decoding checks. For example, n bits with a value of 0 in the first bit field are used for additional decoding checks. After the terminal decodes the downlink control information, if 1 appears in these bits, the terminal can determine that the downlink control information is decoded incorrectly and abandon the decoding result, thereby avoiding ETWS/CMAS false alarms and reducing the false alarm rate.

In this example, the first bit field includes T1 reserved bits and T2 bits with the same value; T1 is greater than or equal to 1, and T2 is greater than 1. The T1 reserved bits can be used for other information indication. The T2 bits with the same value can be used for additional decoding and verification.

In an example, the T1 reserved bits include a master information block (Master Information Block, MIB) indication field. The main information block indication field is used to indicate the content change of the main information block. If the value of the indication field of the main information block is 1, it means that the system information in the main information block has changed, and the second communication node needs to detect the MIB again.

In another example, the T1 reserved bits include a system information block type 1 (SIB1) scheduling information field. The system information block type 1 scheduling information field is used to indicate the number of repetitions of the system information block type 1 and the transmission block size.

In this example, for coverage enhancement mode A (Coverage Enhancement Mode A, CE mode A), the total number of bits in the ETWS indicator field, CMAS indicator field, and first bit field is equal to the downlink control information format 6-0A (DCI format 6 -0A) the number of bits.

In this example, for coverage enhancement mode B (Coverage Enhancement Mode B, CE mode B), the total number of bits in the ETWS indicator field, CMAS indicator field, and first bit field is equal to the downlink control information format 6-0B (DCI format 6 -0B) the number of bits.

The number of bits contained in the downlink control information format of CE mode A is different from the number of bits contained in the downlink control information format of CE mode B. Based on this method, the terminal configuration under CE mode A or CE mode B will not increase the control channel The number of blind detections.

In this example, it also includes determining the radio network temporary identifier (RNTI) used for the downlink control information format including the ETWS indicator field, the CMAS indicator field, and the first bit field; and using the RNTI to determine the downlink control information format The transmitted bits are scrambled. At the receiving end, if the downlink control information format is descrambled by the RNTI used for the ETWS indication and CMAS indication, it is explained that the downlink control information format transmits the ETWS indication and CMAS indication.

In this example, in the Narrow Band Internet of Things (NB-IoT), the control channel search space used to transmit the ETWS indication and CMAS indication has the same carrier configuration and start Subframe configuration and maximum repetition configuration.

Example two

The system information receiving method provided in this example includes: a second communication node receives a downlink control information format sent by a first communication node; the downlink control information format includes an ETWS indication field, a CMAS indication field, and a first bit field; the ETWS The indication field is used to determine the ETWS indication, and the CMAS indication field is used to determine the CMAS indication.

In this example, the first bit field contains bits whose first value is all 0 or all 1, and the first value is greater than 1. When decoding, the terminal can use all or part of the bits in the first bit field as additional decoding checks. For example, n bits with a value of 0 in the first bit field are used for additional decoding checks. After the terminal decodes the downlink control information, if a 1 appears in these n bits, the terminal can determine that the downlink control information is decoded incorrectly and abandon the decoding result, thereby avoiding ETWS/CMAS false alarms and reducing the false alarm rate.

In this example, the first bit field includes reserved bits of the second value and bits of the same value of the third value; the second value is greater than or equal to 1, and the third value is greater than 1. The second value reserved bits can be used for other information indication. The bits with the same value of the third value can be used for additional decoding and verification.

In response to the ETWS indication, the response mode of the second communication node to the downlink control information format may adopt one of the following solutions:

Solution 1: Optionally, in this example, when the value of the ETWS indication field is a1, it indicates that the first communication node sends the ETWS master notification, and the second communication node detects the system corresponding to the ETWS master notification Information block (System Information Block, SIB) type.

When the value of the ETWS indication field is a2, it indicates that the first communication node sends the ETWS main notification and the ETWS auxiliary notification, and the second communication node detects the system information block type and the ETWS auxiliary notification corresponding to the ETWS main notification. The corresponding system information block type.

When the value of the ETWS indication field is a3, it indicates that the first communication node sends the ETWS auxiliary notification, and the second communication node detects the system information block type corresponding to the ETWS auxiliary main notification.

In the case where the value of the ETWS indication field is a4, it indicates that the first communication node does not send the ETWS main notification and ETWS auxiliary notification, and the second communication node does not need to detect the ETWS main notification and ETWS auxiliary notification.

Solution 2: Optionally, in this example, when the value of the ETWS indication field is a1, it indicates that the first communication node sends an ETWS notification, and the second communication node needs to detect system information block type 1 (SIB1), The second communication node detects SIB1 and obtains the scheduling information list in SIB1; if the scheduling information list indicates that the system information block type corresponding to the ETWS main notification and/or the system information block type corresponding to the ETWS secondary notification exists If yes, the second communication node detects the system information block type corresponding to the ETWS main notification and/or the system information block type corresponding to the ETWS auxiliary notification.

When the value of the ETWS indication field is a2, it indicates that the first communication node sends the ETWS main notification, and the second communication node does not need to confirm the system information scheduling change through SIB1, then the second communication node detects the ETWS main notification The corresponding system information block type; when the value of the ETWS indication field is a3, it indicates that the first communication node sends ETWS main notification and ETWS auxiliary notification, and the second communication node does not need to confirm the system information scheduling change through SIB1 , The second communication node detects the system information block type corresponding to the ETWS main notification and the system information block type corresponding to the ETWS auxiliary notification.

When the value of the ETWS indication field is a4, it indicates that the first communication node sends the ETWS auxiliary notification, and the second communication node does not need to confirm the system information scheduling change through SIB1, then the second communication node detects the ETWS auxiliary notification The corresponding system information block type.

In the case that the value of the ETWS indication field is a5, it indicates that the first communication node does not send the ETWS main notification and the ETWS auxiliary notification, and the second communication node does not need to detect the ETWS main notification and the ETWS auxiliary notification.

Solution 3: Optionally, in this example, when the value of the ETWS indication field is a1, it indicates that the first communication node sends an ETWS notification, and the second communication node needs to detect the MIB to obtain the configuration information of SIB1, and then detect SIB1 If the system information scheduling change is confirmed, the second communication node detects the main information block MIB; according to the information in the MIB, the second communication node detects SIB1 and obtains the scheduling information list in SIB1; if the scheduling information list Indicate that the system information block type corresponding to the ETWS main notification and/or the system information block type corresponding to the ETWS secondary notification exists, then the second communication node detects the system information block type and/or corresponding to the ETWS main notification Or the type of system information block corresponding to the ETWS auxiliary notification.

When the value of the ETWS indication field is a2, it indicates that the first communication node sends an ETWS auxiliary notification, and the second communication node does not need to detect MIB but needs to detect SIB1 to confirm the system information scheduling change, then the second communication node Detect SIB1 and obtain the scheduling information list in SIB1; if the scheduling information list indicates that the system information block type corresponding to the ETWS primary notification and/or the system information block type corresponding to the ETWS secondary notification exists, then the second The communication node detects the system information block type corresponding to the ETWS main notification and/or the system information block type corresponding to the ETWS auxiliary notification.

When the value of the ETWS indication field is a3, it indicates that the first communication node sends the ETWS master notification, and the second communication node does not need to detect MIB and SIB1, then the second communication node detects the corresponding ETWS master notification System information block type.

When the value of the ETWS indication field is a4, it indicates that the first communication node sends the ETWS main notification and ETWS auxiliary notification, and the second communication node does not need to detect MIB and SIB1, then the second communication node detects the ETWS main The system information block type corresponding to the notification and the system information block type corresponding to the ETWS auxiliary notification.

When the value of the ETWS indication field is a5, it indicates that the first communication node sends the ETWS auxiliary notification, and the second communication node does not need to detect MIB and SIB1, then the second communication node detects the corresponding ETWS auxiliary notification System information block type.

In the case that the value of the ETWS indication field is a6, it indicates that the first communication node does not send the ETWS main notification and the ETWS auxiliary notification, and the second communication node does not need to detect the ETWS main notification and the ETWS auxiliary notification.

Solution 4: Optionally, in this example, when the value of the ETWS indication field is a1, it indicates that the first communication node sends an ETWS notification, and the second communication node needs to detect MIB to obtain SIB1 configuration information, and then detect SIB1 If the system information scheduling change is confirmed, the second communication node detects the main information block MIB; according to the information in the MIB, the second communication node detects SIB1 and obtains the scheduling information list in SIB1; if the scheduling information list Indicate that the system information block type corresponding to the ETWS main notification and/or the system information block type corresponding to the ETWS secondary notification exists, then the second communication node detects the system information block type and/or corresponding to the ETWS main notification Or the system information block type corresponding to the ETWS auxiliary notification.

When the value of the ETWS indication field is a2, it indicates that the first communication node sends an ETWS notification, and the second communication node does not need to detect MIB but needs to detect SIB1 to confirm the system information scheduling change, then the second communication node detects System information block type 1, obtain the scheduling information list in system information block type 1; if the scheduling information list indicates that the system information block type corresponding to the ETWS main notification and/or the system information block type corresponding to the ETWS secondary notification exists If yes, the second communication node detects the system information block type corresponding to the ETWS main notification and/or the system information block type corresponding to the ETWS auxiliary notification.

Solution 5: Optionally, in this example, the first bit field includes a master information block MIB indicator field.

In the case that the value of the ETWS indication field is 1 and the value of the main information block MIB indication field is 1, the second communication node detects the main information block MIB; according to the information in the MIB, the second communication node 2. The communication node detects SIB1 and obtains the scheduling information list in SIB1; if the scheduling information list indicates that the system information block type corresponding to the ETWS main notification and/or the system information block type corresponding to the ETWS auxiliary notification exists, then The second communication node detects the system information block type corresponding to the ETWS main notification and/or the system information block type corresponding to the ETWS auxiliary notification.

If the value of the ETWS indication field is 1 and the value of the MIB indication field of the main information block is 0, the second communication node does not detect MIB, but directly detects SIB1, and obtains the scheduling information list in SIB1; if If the scheduling information list indicates that the system information block type corresponding to the ETWS main notification and/or the system information block type corresponding to the ETWS secondary notification exists, the second communication node detects the system corresponding to the ETWS main notification Information block type and/or system information block type corresponding to the ETWS auxiliary notification.

a1, a2, a3, a4, a5, and a6 are different values of the ETWS indicator field.

In response to the CMAS indication, the response mode of the second communication node to the downlink control information format may adopt one of the following solutions:

Solution 1: Optionally, in this example, when the value of the CMAS indication field is b1, it indicates that the first communication node sends a CMAS notification, and the second communication node detects the system information block corresponding to the CMAS notification Types of.

Solution 2: Optionally, in this example, when the value of the CMAS indication field is b1, it indicates that the first communication node sends a CMAS notification, and the second communication node is required to detect system information block type 1 (SIB1), Then the second communication node detects SIB1 and obtains the scheduling information list in SIB1; if the scheduling information list indicates that the system information block type corresponding to the CMAS notification exists, the second communication node detects the CMAS notification The corresponding system information block type.

When the value of the CMAS indication field is b2, it indicates that the first communication node sends a CMAS notification, and the second communication node does not need to confirm the system information scheduling change through SIB1, then the second communication node detects that the CMAS notification corresponds to The type of system information block.

In the case where the value of the CMAS indication field is b3, it indicates that the first communication node does not send the CMAS notification, and the second communication node does not need to detect the CMAS notification.

Solution 3: Optionally, in this example, when the value of the CMAS indication field is b1, it indicates that the first communication node sends a CMAS notification, and the second communication node needs to detect MIB to obtain SIB1 configuration information, and then detect SIB1 If the system information scheduling change is confirmed, the second communication node detects the main information block MIB; according to the information in the MIB, the second communication node detects SIB1 and obtains the scheduling information list in SIB1; if the scheduling information list If the system information block type corresponding to the CMAS notification is indicated, the second communication node detects the system information block type corresponding to the CMAS notification.

In the case where the value of the CMAS indication field is b2, it indicates that the first communication node sends a CMAS notification, and the second communication node does not need to detect MIB but needs to detect SIB1 to confirm the system information scheduling change, then the second communication node detects SIB1, obtaining the scheduling information list in SIB1; if the scheduling information list indicates that the system information block type corresponding to the CMAS notification exists, the second communication node detects the system information block type corresponding to the CMAS notification.

When the value of the CMAS indication field is b3, it indicates that the first communication node sends a CMAS notification, and the second communication node does not need to detect MIB and SIB1, then the second communication node detects the system information corresponding to the CMAS notification Block type.

When the value of the CMAS indication field is b4, it indicates that the first communication node does not send a CMAS notification, and the second communication node does not need to detect the CMAS notification.

Solution 4: Optionally, in this example, when the value of the CMAS indication field is b1, it indicates that the first communication node sends a CMAS notification, and the second communication node needs to detect MIB to obtain SIB1 configuration information, and then detect SIB1 If the system information scheduling change is confirmed, the second communication node detects the main information block MIB; according to the information in the MIB, the second communication node detects SIB1 and obtains the scheduling information list in SIB1; if the scheduling information list If the system information block type corresponding to the CMAS notification is indicated, the second communication node detects the system information block type corresponding to the CMAS notification.

In the case where the value of the CMAS indication field is b2, it indicates that the first communication node sends a CMAS notification, and the second communication node does not need to detect MIB but needs to detect SIB1 to confirm the system information scheduling change, then the second communication node detects System information block type 1. Obtain the scheduling information list in system information block type 1. If the scheduling information list indicates that the system information block type corresponding to the CMAS notification exists, the second communication node detects the CMAS notification The corresponding system information block type.

When the value of the CMAS indication field is 1 and the value of the main information block MIB indication field is 1, the second communication node detects the main information block MIB; according to the information in the MIB, the second communication node The second communication node detects SIB1 and obtains the scheduling information list in SIB1; if the scheduling information list indicates that the system information block type corresponding to the CMAS notification exists, the second communication node detects the system corresponding to the CMAS notification Information block type.

When the value of the CMAS indication field is 1 and the value of the MIB indication field of the master information block is 0, the second communication node detects SIB1 and obtains the scheduling information list in SIB1; if the scheduling information list is If the system information block type corresponding to the CMAS notification is indicated, the second communication node detects the system information block type corresponding to the CMAS notification.

b1, b2, b3, and b4 are different values of the ETWS indication field.

Example three

The system information indication method provided by this example, as shown in Figure 3, includes:

Step S51: Determine a DCI format, where the DCI format includes ETWS indication, CMAS indication, and a bit with a value of 0 as the first value.

In this example, the ETWS indication includes k1 bits of information, and the CMAS indication includes k2 bits of information. In CE mode A, for the DCI format, in addition to ETWS indication and CMAS indication, bits with a value of 0 are supplemented until the number of bits in the DCI format is the same as the number of bits in DCI format 6-0A; in CE mode B Next, for the DCI format, in addition to ETWS indication and CMAS indication, additional bits with a value of 0 are supplemented until the number of bits of the DCI format is the same as the number of bits of the DCI format 6-0B. All or part of these supplementary 0-valued bits can be used as additional decoding and verification to reduce the false alarm rate of ETWS indication and CMAS indication.

In this example, a dedicated RNTI for ETWS indication and CMAS indication is determined, and the RNTI is used to scramble the DCI format.

In an example, ETWS indication is 2-bit information, and CMAS indication is 1-bit information, the first communication node may be a base station, and the second communication node may be a user terminal, and the following indication relationship is adopted:

When the value of the ETWS indication is '00' or 0, it means that the base station does not send the ETWS main notification and the ETWS auxiliary notification, and the user terminal does not need to detect the ETWS main notification and the ETWS auxiliary notification.

When the value of the ETWS indication is '01' or 1, it means that the base station sends an ETWS master notification, and the user terminal needs to detect SIB10.

When the value of the ETWS indication is '10' or 2, it means that the base station sends an ETWS auxiliary notification, and the user terminal needs to detect SIB11.

When the value of the ETWS indication is '11' or 3, it means that the base station sends the ETWS main notification and the ETWS secondary notification, and the user terminal needs to detect SIB10 and SIB11.

When the value of the CMAS indication is 0, it means that the base station does not send the CMAS notification, and the user terminal does not need to detect the CMAS notification.

When the value of the CMAS indication is 1, it means that the base station sends a CMAS notification, and the user terminal needs to detect SIB12.

In another example, ETWS indication is 3-bit information, and CMAS indication is 2-bit information. The first communication node may be a base station, and the second communication node may be a terminal, and the following indication relationship is adopted:

When the value of the ETWS indication is '000' or 0, it means that the base station does not send the ETWS main notification and ETWS auxiliary notification, and the user terminal does not need to detect the ETWS main notification and ETWS auxiliary notification.

When the value of the ETWS indication is '001' or 1, it means that the base station sends an ETWS notification and needs to detect SIB1 to confirm the system information scheduling change. The user terminal needs to detect SIB1 and obtain the schedulingInfoList in SIB1; if the scheduling is The information list schedulingInfoList indicates that SIB10 and/or SIB11 exists, and the user terminal needs to detect SIB10 and/or SIB11.

When the value of the ETWS indication is '010' or 2, it means that the base station sends an ETWS master notification, and there is no need to confirm the system information scheduling change through SIB1, and the user terminal needs to detect SIB10.

When the value of the ETWS indication is '011' or 3, it means that the base station sends an ETWS auxiliary notification, and there is no need to confirm the system information scheduling change through SIB1, and the user terminal needs to detect SIB11.

When the value of the ETWS indication is '100' or 4, it means that the base station sends an ETWS primary notification and an ETWS secondary notification, and there is no need to confirm system information scheduling changes through SIB1, and the user terminal needs to detect SIB10 and SIB11.

When the value of the CMAS indication is '00', it means that the base station does not send the CMAS notification, and the user terminal does not need to detect the CMAS notification.

When the value of the CMAS indication is '01', it means that the base station sends a CMAS notification and needs to detect SIB1 to confirm the system information scheduling change, and the user terminal needs to detect SIB1 and obtain the scheduling information list schedulingInfoList in SIB1; if the scheduling information list is The schedulingInfoList indicates that SIB12 exists, and the user terminal needs to detect SIB12.

When the value of the CMAS indication is '10', it means that the base station sends a CMAS notification and there is no need to confirm the system information scheduling change through SIB1, and the user terminal needs to detect SIB12.

In another example, ETWS indication is 1-bit information, and CMAS indication is 1-bit information, and the following indication relationship is adopted:

When the value of the ETWS indication is 1, it means that the base station sends an ETWS notification, and the user terminal needs to detect SIB1 and obtain the schedulingInfoList of the scheduling information list in SIB1; if the schedulingInfoList indicates that SIB10 and/or SIB11 exist, The user terminal needs to detect SIB10 and/or SIB11.

When the value of the CMAS indication is 1, it means that the base station sends a CMAS notification, and the user terminal needs to detect SIB1 and obtain the schedulingInfoList of the scheduling information list in SIB1; if the schedulingInfoList indicates that SIB12 exists, the user terminal needs Detect SIB12.

In an example, still referring to FIG. 3, the method further includes:

Step S52: The base station sends the DCI format to the user terminal.

Example four

The system information receiving method, as shown in Figure 4, includes:

Step S61, the user terminal receives the DCI format sent by the base station. The DCI format includes ETWS indication, CMAS indication, and n bits with a value of 0.

In this example, the user terminal uses the RNTI dedicated for ETWS indication and CMAS indication to correctly descramble the DCI format, and the user terminal determines that the DCI format is the DCI format used to transmit ETWS indication and CMAS indication. Then, the user terminal checks whether the additional decoding check bits in the DCI format are all 0, and if so, the user terminal determines that the DCI format is decoded correctly.

Step S62: The user terminal performs corresponding operations according to the ETWS indication and/or CMAS indication.

In an example, the user terminal obtains ETWS indication and CMAS indication, and performs the following corresponding operations:

When the value of the ETWS indication is '00' or 0, the user terminal does not detect the ETWS main notification and ETWS auxiliary notification.

When the value of the ETWS indication is '01' or 1, the user terminal detects SIB10.

When the value of the ETWS indication is '10' or 2, the user terminal detects SIB11.

When the value of the ETWS indication is '11' or 3, the user terminal needs to detect SIB10 and SIB11.

When the value of the CMAS indication is 0, the user terminal does not detect the CMAS notification.

When the value of the CMAS indication is 1, the user terminal detects SIB12.

In another example, the user terminal obtains ETWS indication and CMAS indication, and performs the following corresponding operations:

When the value of the ETWS indication is '000' or 0, the user terminal does not detect the ETWS main notification and ETWS auxiliary notification.

When the value of the ETWS indication is '001' or 1, the user terminal detects SIB1 and obtains the scheduling information list in SIB1; if the scheduling information list indicates that SIB10 and/or SIB11 are present, the user terminal detects SIB10 And/or SIB11.

When the value of the ETWS indication is '010' or 2, the user terminal detects SIB10.

When the value of the ETWS indication is '011' or 3, the user terminal detects SIB11.

When the value of the ETWS indication is '100' or 4, the user terminal detects SIB10 and SIB11.

When the value of the CMAS indication is '00', the user terminal does not detect the CMAS notification.

When the value of the CMAS indication is '01', the user terminal detects SIB1 and obtains the scheduling information list in SIB1; if the scheduling information list indicates that SIB12 is present, the user terminal detects SIB12.

When the value of the CMAS indication is '10', the user terminal detects SIB12.

When the value of the ETWS indication is 1, the user terminal detects SIB1 and obtains the scheduling information list in SIB1; if the scheduling information list indicates that SIB10 and/or SIB11 are present, the user terminal detects SIB10 and/or SIB11 .

When the value of the CMAS indication is 1, the user terminal detects SIB1 and obtains the scheduling information list in SIB1; if the scheduling information list indicates that SIB12 is present, the user terminal detects SIB12.

Example 5

The system information indication methods provided in this example include:

A DCI format is determined, and the DCI format includes an ETWS indication field, a CMAS indication field, m1 reserved bits and m2 0-valued bits.

In this example, the number of bits of the DCI format is the total number of bits contained in ETWS indication, CMAS indication, m1 reserved bits and m2 0-valued bits, m1 is greater than or equal to 1, and m2 is greater than 1. In CE mode A, the number of bits of the DCI format is equal to the number of bits of DCI format 6-0A; in the case of CE mode B, the number of bits of the DCI format is equal to the number of bits of DCI format 6-0A.

In this example, the ETWS indication includes 1 bit of information, and the CMAS indication includes 1 bit of information.

When the value of ETWS indication is 1, it indicates that the user terminal needs to detect SIB1 and obtain a scheduling information list. If the scheduling information list indicates that SIB10 and/or SIB11 are present, the user terminal needs to detect SIB10 and/or SIB11.

When the value of CMAS indication is 1, it indicates that the user terminal needs to detect SIB1 and obtain a scheduling information list. If the scheduling information list indicates that SIB12 is present, the user terminal needs to detect SIB12.

In this example, the m1 reserved bits can be used to indicate other information.

In an example, the m1 reserved bits include a 1-bit MIB indicator field. Therefore, the DCI format includes an ETWS indicator field, a CMAS indicator field, an MIB indicator field, m1-1 reserved bits and m2 0-valued bits. The MIB indication field is used to indicate the content change of the main information block. If the value of the indication field of the main information block is 1, it means that the system information in the main information block has changed, and the second communication node needs to detect the MIB again.

In another example, the m1 reserved bits include a 5-bit SIB1 scheduling information field. Therefore, the DCI format includes an ETWS indication field, a CMAS indication field, a SIB1 scheduling information field, m1-5 reserved bits and m2 0-valued bits. The 5-bit SIB1 scheduling information field is used to indicate the number of repetitions of SIB1 and the size of the transmission block.

The base station sends the DCI format to the user terminal.

Example 6

The system information indication method provided by this example, as shown in Figure 5, includes:

Step S71: For the eMTC connected state, determine the DCI format in the downlink control channel type 0 common search space, and the DCI format includes system message change indication signaling and m2 bits with a value of 0.

The method described in this example is applicable to the eMTC connected state, and uses the downlink control channel type 0 common search space to transmit system message change indication signaling. In CE mode A, the number of bits in the DCI format is the same as the number of bits in DCI format 6-0A; in the case of CE mode B, the number of bits in the DCI format is the same as the number of bits in DCI format 6-0B.

In an example, the system message change indication signaling includes an ETWS indication field, a CMAS indication field, a system information modification (System Information Modification) indication field, and a second system information modification indication field.

The ETWS indication field, CMAS indication field, system information modification indication field, and second system information modification indication field are all 1-bit information, that is, a total of 4 bits of indication information. In CE mode A, 4+m2 is equal to the number of bits contained in DCI format 6-0A; in CE mode B, 4+m2 is equal to the number of bits contained in DCI format 6-0B.

In another example, the system message change indication signaling includes an ETWS indication field, a CMAS indication field, a system information modification indication field, a second system information modification indication field, and an MIB indication field.

The ETWS indication field, the CMAS indication field, the system information modification indication field, the second system information modification indication field, and the MIB indication field are all 1-bit information, that is, a total of 5 bits of indication information. In CE mode A, 5+m2 is equal to the number of bits included in DCI format 6-0A; in CE mode B, 5+m2 is equal to the number of bits included in DCI format 6-0B.

In another example, the system message change indication signaling includes a system information modification indication field and a second system information modification indication field.

The system information modification indication field and the second system information modification indication field are respectively 1-bit information, that is, a total of 2 bits of indication information. In CE mode A, 2+m2 is equal to the number of bits contained in DCI format 6-0A; in CE mode B, 2+m2 is equal to the number of bits contained in DCI format 6-0B.

In another example, the system message change indication signaling includes a system information modification indication field, a second system information modification indication field, and an MIB indication field.

The system information modification indication field, the second system information modification indication field, and the MIB indication field are each 1 bit of information, that is, a total of 3 bits of indication information. In CE mode A, 3+m2 is equal to the number of bits contained in DCI format 6-0A; in CE mode B, 3+m2 is equal to the number of bits contained in DCI format 6-0B.

In this example, the 1-bit ETWS indication field is used to indicate ETWS main notification and/or ETWS secondary notification; the 1-bit CMAS indication field is used to indicate CMAS notification; the 1-bit system information modification indication field is used to indicate The change of Broadcast Control Channel (BCCH) does not include SIB10, SIB11, SIB12, and SIB14, and this indication field is not applicable to situations where the enhanced Discontinuous Reception (eDRX) period is greater than the BCCH modification period; The 1-bit second system information modification indication field is used to indicate BCCH changes, excluding SIB10, SIB11, SIB12, and SIB14, and this indication field is only applicable when the enhanced discontinuous reception eDRX cycle is greater than the BCCH modification cycle; The 1-bit MIB indication field is used to indicate information changes in the main system information block MIB.

Step S72: The base station sends the DCI format to the user terminal.

In this example, if the user terminal does not use the configuration that the eDRX cycle is greater than the BCCH modification cycle, and the system information modification indication field is 1, it indicates that the user terminal needs to obtain system information again.

In this example, if the user terminal uses the configuration that the eDRX cycle is greater than the BCCH modification cycle, and the second system information modification indication field is 1, it indicates that the user terminal needs to obtain system information again.

In this example, if the MIB indication field is 1, it indicates that the user terminal needs to obtain the main information block MIB again.

In this example, if the ETWS indication field is 1, it indicates that the user terminal needs to detect SIB1 and obtain the scheduling information list in SIB1. If the scheduling information list indicates that SIB10 and/or SIB11 are present, further detection of SIB10 and SIB11 is required. / Or SIB11.

In this example, if the CMAS indication field is 1, it indicates that the user terminal needs to detect SIB1 and obtain the scheduling information list in SIB1. If the scheduling information list indicates that SIB12 exists, SIB12 needs to be further detected.

An embodiment of the present application also provides an information indicating device. The structure is shown in FIG. 6, including: a sending module 81: configured to send a downlink control information format to a second communication node through a first communication node; the downlink control information format includes The earthquake tsunami warning system ETWS indication field, the commercial mobile alert service CMAS indication field and the first bit field; the ETWS indication field is used to determine the ETWS indication, and the CMAS indication field is used to determine the CMAS indication.

In an implementation manner, the first bit field includes a first value bit with the same value.

In an implementation manner, the first bit field includes reserved bits of a second value and bits of the same value of a third value; the second value is not less than 1, and the third value is greater than 1. The number of reserved bits is used for indication of other information except ETWS information and CMAS information.

In one embodiment, for coverage enhancement mode A, the total number of bits in the ETWS indicator field, CMAS indicator field, and first bit field is equal to the number of bits in the downlink control information format 6-0A.

In an implementation manner, for coverage enhancement mode B, the total number of bits in the ETWS indicator field, CMAS indicator field, and first bit field is equal to the number of bits in the downlink control information format 6-0B.

In an implementation manner, the second value reserved bits include a main information block indication field, and the main information block indication field is used to indicate a content change of the main information block.

In an implementation manner, the second value reserved bits include a system information block type 1 scheduling information field, and the system information block type 1 scheduling information field is used to indicate the number of repetitions of the system information block type 1 and Transmission block size.

In an embodiment, the device further includes: a determining module: used to determine a wireless network temporary identifier for the downlink control information format including the ETWS indicator field, the CMAS indicator field, and the first bit field; a scrambling module : Used to scramble the downlink control information format by using the wireless network temporary identifier.

In one embodiment, in the narrowband Internet of Things, the control channel search space used to transmit the ETWS indication and CMAS indication has the same carrier configuration, starting subframe configuration, and maximum repetition number configuration as the search space dedicated to the control channel terminal .

The embodiment of the present application also provides an information receiving device. The structure is shown in FIG. 7, and it includes: a receiving module 91: for the second communication node to receive the downlink control information format sent by the first communication node; the downlink control information format includes The ETWS indicator field, the CMAS indicator field and the first bit field; the ETWS indicator field is used to determine the ETWS indicator, and the CMAS indicator field is used to determine the CMAS indicator.

In an embodiment, the device further includes: a first execution module: configured to detect, through the second communication node, the corresponding ETWS main notification when the value of the ETWS indication field is a fourth value System information block type; second execution module: used to detect the system information block type and ETWS auxiliary notification corresponding to the ETWS main notification through the second communication node when the value of the ETWS indication field is the fifth value The corresponding system information block type.

In one embodiment, the device further includes: a third execution module: used to detect system information block type 1 through the second communication node when the value of the ETWS indication field is a fourth value, Acquire the scheduling information list in the system information block type 1; if the scheduling information list indicates that the system information block type corresponding to the ETWS main notification and/or the system information block type corresponding to the ETWS auxiliary notification exists, pass the The second communication node detects the system information block type corresponding to the ETWS main notification and/or the system information block type corresponding to the ETWS auxiliary notification; the fourth execution module: used to set the value of the ETWS indication field to the fifth value In the case of the second communication node, the system information block type corresponding to the ETWS main notification is detected; the fifth execution module is used to pass the second communication node when the value of the ETWS indication field is the sixth value. The second communication node detects the system information block type corresponding to the ETWS main notification and the system information block type corresponding to the ETWS auxiliary notification.

In an implementation manner, the device further includes: a sixth execution module: configured to detect a master information block MIB through the second communication node when the value of the ETWS indication field is a fourth value; For the MIB information, the system information block type 1 is detected through the second communication node, and the scheduling information list in the system information block type 1 is obtained; if the scheduling information list indicates the system information block type corresponding to the ETWS main notification and / Or the system information block type corresponding to the ETWS auxiliary notification exists, the second communication node detects the system information block type corresponding to the ETWS main notification and/or the system information block type corresponding to the ETWS auxiliary notification The seventh execution module: in the case that the value of the ETWS indication field is the fifth value, the system information block type 1 is detected through the second communication node, and the scheduling information list in the system information block type 1 is obtained; if all The scheduling information list indicates that the system information block type corresponding to the ETWS main notification and/or the system information block type corresponding to the ETWS auxiliary notification exists, and the system corresponding to the ETWS main notification is detected through the second communication node Information block type and/or system information block type corresponding to the ETWS auxiliary notification.

In an embodiment, the method further includes: the first bit field includes a master information block MIB indicator field; the device further includes: an eighth execution module: configured to set the value of the ETWS indicator field to the first In the case of seven values and the value of the main information block MIB indication field is the seventh value, the main information block MIB is detected by the second communication node; according to the information of the MIB, the system is detected by the second communication node Information block type 1, obtain the scheduling information list in system information block type 1; if the scheduling information list indicates that the system information block type corresponding to the ETWS main notification and/or the system information block type corresponding to the ETWS secondary notification exists , The second communication node detects the system information block type corresponding to the ETWS main notification and/or the system information block type corresponding to the ETWS auxiliary notification; the ninth execution module: used for the ETWS indication domain When the value is the seventh value and the value of the MIB indication field of the main information block is the eighth value, the system information block type 1 is detected by the second communication node, and the scheduling information list in the system information block type 1 is obtained; If the scheduling information list indicates that the system information block type corresponding to the ETWS main notification and/or the system information block type corresponding to the ETWS secondary notification exists, the second communication node detects that the ETWS main notification corresponds to The type of system information block and/or the type of system information block corresponding to the ETWS auxiliary notification.

In an embodiment, the device further includes: a tenth execution module: configured to detect the system corresponding to the CMAS notification through the second communication node when the value of the CMAS indication field is the ninth value Information block type.

In an implementation manner, the device further includes: an eleventh execution module: configured to detect system information block type 1 through the second communication node when the value of the CMAS indication field is the ninth value , Obtain the scheduling information list in the system information block type 1; if the scheduling information list indicates that the system information block type corresponding to the CMAS notification exists, then the second communication node detects the system corresponding to the CMAS notification Information block type; the twelfth execution module: used to detect the system information block type corresponding to the CMAS notification through the second communication node when the value of the CMAS indication field is the tenth value.

In an embodiment, the device further includes: a thirteenth execution module: configured to detect a master information block MIB through the second communication node when the value of the CMAS indication field is a ninth value; According to the MIB information, detect the system information block type 1 through the second communication node, and obtain the scheduling information list in the system information block type 1; if the scheduling information list indicates that the system information block type corresponding to the CMAS notification exists , The second communication node detects the system information block type corresponding to the CMAS notification; the fourteenth execution module is used to pass the first communication node when the value of the CMAS indication field is the tenth value 2. The communication node detects the system information block type 1, and obtains the scheduling information list in the system information block type 1. If the scheduling information list indicates that the system information block type corresponding to the CMAS notification exists, the second communication node Detect the system information block type corresponding to the CMAS notification.

In an implementation manner, the first bit field includes a master information block MIB indicator field; the device further includes: a fifteenth execution module: configured to set the value of the CMAS indicator field to the eleventh value and When the value of the MIB indication field of the main information block is the eleventh value, the main information block MIB is detected by the second communication node; and the system information block type is detected by the second communication node according to the information of the MIB 1. Acquire the scheduling information list in the system information block type 1; if the scheduling information list indicates that the system information block type corresponding to the CMAS notification exists, detect the CMAS notification corresponding to the CMAS notification through the second communication node System information block type; sixteenth execution module: used to pass the first value when the value of the CMAS indicator field is the eleventh value and the value of the main information block MIB indicator field is the twelfth value 2. The communication node detects the system information block type 1, and obtains the scheduling information list in the system information block type 1. If the scheduling information list indicates that the system information block type corresponding to the CMAS notification exists, the second communication node Detect the system information block type corresponding to the CMAS notification.

FIG. 8 is a schematic structural diagram of a user equipment according to an embodiment of the present application. As shown in FIG. 8, the user equipment 130 provided in an embodiment of the present application includes a memory 1303 and a processor 1304. The user equipment 130 may further include an interface 1301 and a bus 1302. The interface 1301, the memory 1303 and the processor 1304 are connected through a bus 1302. The memory 1303 is used to store instructions. The processor 1304 is configured to read the instructions to execute the technical solutions of the foregoing method embodiments applied to user equipment. The implementation principles and technical effects are similar, and will not be repeated here.

FIG. 9 is a schematic structural diagram of a base station according to an embodiment of the application. As shown in FIG. 9, the base station 140 provided in the embodiment of the present application includes a memory 1403 and a processor 1404. The base station may further include an interface 1401 and a bus 1402. The interface 1401, the memory 1403 and the processor 1404 are connected through a bus 1402. The memory 1403 is used to store instructions. The processor 1404 is configured to read the instructions to execute the technical solutions of the foregoing method embodiments applied to the base station. The implementation principles and technical effects are similar, and details are not described herein again.

FIG. 10 is a schematic structural diagram of a communication system according to an embodiment of the application. As shown in FIG. 10, the system includes: a user equipment 130 as in the foregoing embodiment and a base station 140 in the foregoing embodiment.

The system also includes: a first sending module: for sending a downlink control information format to a second communication node through the first communication node; the downlink control information format includes the earthquake and tsunami warning system ETWS indication field and the commercial mobile alert service CMAS indication field And the first bit field; the ETWS indicator field is used to determine the ETWS indicator, and the CMAS indicator field is used to determine the CMAS indicator; the receiving module is used for the second communication node to receive the downlink control information format sent by the first communication node.

The above are only exemplary embodiments of the present application, and are not used to limit the protection scope of the present application.

Those skilled in the art should understand that the term user terminal encompasses any suitable type of wireless user equipment, such as mobile phones, portable data processing devices, portable web browsers, or vehicle-mounted mobile stations.

The various embodiments of the present application can be implemented in hardware or dedicated circuits, software, logic or any combination thereof. For example, some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that may be executed by a controller, microprocessor or other computing device, although the application is not limited thereto.

The embodiments of the present application may be implemented by executing computer program instructions by a data processor of a mobile device, for example, in a processor entity, or by hardware, or by a combination of software and hardware. Computer program instructions can be assembly instructions, instruction set architecture (Instruction Set Architecture, ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or written in any combination of one or more programming languages Source code or object code.

The block diagram of any logical flow in the drawings of the present application may represent program steps, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions. The computer program can be stored on the memory. The memory can be of any type suitable for the local technical environment and can be implemented using any suitable data storage technology. The memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically erasable Programmable read-only memory (Electrically EPROM, EEPROM) or flash memory, etc. The volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache. RAM can include many forms, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronization Dynamic Random Access Memory (Double Data Rate SDRAM, DDR SDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), Synchronous Link Dynamic Random Access Memory (Synchlink DRAM, SLDRAM) and Direct Memory Bus Random Access Memory (Direct Rambus RAM, DR RAM). The memory of the system and method described in this application includes but is not limited to these and any other suitable types of memory.

The processor of the embodiment of the present application may be of any type suitable for the local technical environment, such as but not limited to general-purpose computers, special-purpose computers, microprocessors, digital signal processors (Digital Signal Processor, DSP), and application specific integrated circuits (Application Specific Integrated Circuits). Integrated Circuit (ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or processors based on multi-core processor architecture. The general-purpose processor may be a microprocessor or any conventional processor. The foregoing processor may implement or execute the steps of the method disclosed in the embodiments of the present application. The software module may be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

Claims

An information indication method, including:

The first communication node sends a downlink control information format to the second communication node;

The downlink control information format includes an earthquake and tsunami warning system ETWS indicator field, a commercial mobile alert service CMAS indicator field and a first bit field; the ETWS indicator field is used to determine the ETWS indicator, and the CMAS indicator field is used to determine the CMAS indicator.
The method according to claim 1, wherein the first bit field contains bits with the same first value.
The method according to claim 1, wherein the first bit field contains a second value of reserved bits and a third value of bits with the same value; wherein the second value is not less than 1, and the third value is greater than 1; The second value reserved bits are used for indication of other information except ETWS information and CMAS information.
The method according to any one of claims 1-3, wherein, for coverage enhancement mode A, the total number of bits in the ETWS indicator field, CMAS indicator field, and first bit field is equal to that of the downlink control information format 6-0A Number of bits.
The method according to any one of claims 1-3, wherein, for coverage enhancement mode B, the total number of bits in the ETWS indicator field, CMAS indicator field, and first bit field is equal to that of the downlink control information format 6-0B Number of bits.
The method according to claim 3, wherein the second value reserved bits include a main information block indication field, and the main information block indication field is used to indicate a content change of the main information block.
The method according to claim 3, wherein the number of reserved bits of the second value includes a system information block type 1 scheduling information field, and the system information block type 1 scheduling information field is used to indicate the system information block type 1 The number of repetitions and transmission block size.
The method according to claim 1, further comprising:

Determining a wireless network temporary identifier used in the downlink control information format including the ETWS indication field, the CMAS indication field and the first bit field;

Scrambling the downlink control information format by using the wireless network temporary identifier.
The method according to claim 1, wherein, in the narrowband Internet of Things, the control channel search space used to transmit the ETWS indication and the CMAS indication has the same carrier configuration and start as the search space dedicated to the control channel terminal. Subframe configuration and maximum repetition configuration.
An information receiving method includes:

The second communication node receives the downlink control information format sent by the first communication node;

The downlink control information format includes an earthquake and tsunami warning system ETWS indicator field, a commercial mobile alert service CMAS indicator field and a first bit field; the ETWS indicator field is used to determine the ETWS indicator, and the CMAS indicator field is used to determine the CMAS indicator.
The method according to claim 10, further comprising:

In the case where the value of the ETWS indication field is the fourth value, the second communication node detects the system information block type corresponding to the ETWS main notification;

When the value of the ETWS indication field is the fifth value, the second communication node detects the system information block type corresponding to the ETWS main notification and the system information block type corresponding to the ETWS secondary notification.
The method according to claim 10, further comprising:

In the case where the value of the ETWS indication field is the fourth value, the second communication node detects system information block type 1, and obtains the scheduling information list in the system information block type 1, and indicates in the scheduling information list If at least one of the system information block type corresponding to the ETWS main notification and the system information block type corresponding to the ETWS secondary notification exists, the second communication node detects the system information block corresponding to the ETWS main notification At least one of the type and the system information block type corresponding to the ETWS auxiliary notification;

In the case where the value of the ETWS indication field is the fifth value, the second communication node detects the system information block type corresponding to the ETWS main notification;

When the value of the ETWS indication field is the sixth value, the second communication node detects the system information block type corresponding to the ETWS main notification and the system information block type corresponding to the ETWS auxiliary notification.
The method according to claim 10, further comprising:

When the value of the ETWS indication field is the fourth value, the second communication node detects the main information block MIB; according to the information of the MIB, the second communication node detects the system information block type 1 and obtains all The scheduling information list in the system information block type 1; when the scheduling information list indicates that at least one of the system information block type corresponding to the ETWS main notification and the system information block type corresponding to the ETWS auxiliary notification exists , The second communication node detects at least one of the system information block types corresponding to the ETWS main notification and the ETWS auxiliary notification;

In the case where the value of the ETWS indication field is the fifth value, the second communication node detects system information block type 1, and obtains the scheduling information list in the system information block type 1, and indicates in the scheduling information list If at least one of the system information block type corresponding to the ETWS main notification and the system information block type corresponding to the ETWS secondary notification exists, the second communication node detects the system information block corresponding to the ETWS main notification At least one of the type and the system information block type corresponding to the ETWS auxiliary notification.
The method according to claim 10, wherein the first bit field includes a master information block (MIB) indicator field; the method further comprises:

In the case where the value of the ETWS indication field is the seventh value and the value of the main information block MIB indication field is the seventh value, the second communication node detects the main information block MIB; according to the information of the MIB, The second communication node detects the system information block type 1, and obtains the scheduling information list in the system information block type 1. The scheduling information list indicates the system information block type corresponding to the ETWS primary notification and the ETWS secondary notification corresponding If at least one of the system information block types exists, the second communication node detects at least one of the system information block type corresponding to the ETWS main notification and the system information block type corresponding to the ETWS auxiliary notification One;

In the case where the value of the ETWS indication field is the seventh value and the value of the main information block MIB indication field is the eighth value, the second communication node detects system information block type 1 and obtains the system information block Type 1 scheduling information list; when the scheduling information list indicates that at least one of the system information block type corresponding to the ETWS primary notification and the system information block type corresponding to the ETWS secondary notification exists, the first The second communication node detects at least one of the system information block type corresponding to the ETWS main notification and the system information block type corresponding to the ETWS auxiliary notification.
The method according to claim 10, further comprising:

When the value of the CMAS indication field is the ninth value, the second communication node detects the system information block type corresponding to the CMAS notification.
The method according to claim 10, further comprising:

In the case where the value of the CMAS indication field is the ninth value, the second communication node detects system information block type 1, and obtains the scheduling information list in the system information block type 1, and indicates in the scheduling information list If the system information block type corresponding to the CMAS notification exists, the second communication node detects the system information block type corresponding to the CMAS notification;

When the value of the CMAS indication field is the tenth value, the second communication node detects the system information block type corresponding to the CMAS notification.
The method according to claim 10, further comprising:

When the value of the CMAS indication field is the ninth value, the second communication node detects the main information block MIB; according to the information of the MIB, the second communication node detects the system information block type 1 and obtains all The scheduling information list in the system information block type 1; when the scheduling information list indicates that the system information block type corresponding to the CMAS notification exists, the second communication node detects the system information corresponding to the CMAS notification Block type

In the case that the value of the CMAS indication field is the tenth value, the second communication node detects system information block type 1, and obtains the scheduling information list in the system information block type 1; If the system information block type corresponding to the CMAS notification exists, the second communication node detects the system information block type corresponding to the CMAS notification.
The method according to claim 10, wherein the first bit field includes a master information block (MIB) indicator field; the method further comprises:

In the case that the value of the CMAS indication field is the eleventh value and the value of the main information block MIB indication field is the eleventh value, the second communication node detects the main information block MIB; Information, the second communication node detects the system information block type 1, and obtains the scheduling information list in the system information block type 1, when the scheduling information list indicates that the system information block type corresponding to the CMAS notification exists , The second communication node detects the system information block type corresponding to the CMAS notification;

In the case where the value of the CMAS indication field is the eleventh value and the value of the main information block MIB indication field is the twelfth value, the second communication node detects system information block type 1 and obtains the system The scheduling information list in the information block type 1; when the scheduling information list indicates that the system information block type corresponding to the CMAS notification exists, the second communication node detects the system information block type corresponding to the CMAS notification .
An information indicating device includes:

Sending module: set to send the downlink control information format to the second communication node through the first communication node;

The downlink control information format includes an earthquake and tsunami warning system ETWS indicator field, a commercial mobile alert service CMAS indicator field and a first bit field; the ETWS indicator field is used to determine the ETWS indicator, and the CMAS indicator field is used to determine the CMAS indicator.
The device according to claim 19, wherein the first bit field contains bits with the same first value.
The device according to claim 19, wherein the first bit field contains reserved bits of a second value and bits of the same value of a third value; wherein the second value is not less than 1, and the third value is greater than 1; The second value reserved bits are used for indication of other information except ETWS information and CMAS information.
The apparatus according to any one of claims 19-21, wherein for coverage enhancement mode A, the total number of bits in the ETWS indicator field, CMAS indicator field, and first bit field is equal to that of the downlink control information format 6-0A Number of bits.
The apparatus according to any one of claims 19-21, wherein for coverage enhancement mode B, the total number of bits in the ETWS indicator field, CMAS indicator field, and first bit field is equal to that of the downlink control information format 6-0B Number of bits.
The apparatus according to claim 21, wherein the second value of the reserved bits includes a main information block indication field, and the main information block indication field is used to indicate a content change of the main information block.
The apparatus according to claim 21, wherein the second value reserved bits include a system information block type 1 scheduling information field, and the system information block type 1 scheduling information field is used to indicate the system information block type 1 The number of repetitions and transmission block size.
The device according to claim 19, further comprising:

Determining module: configured to determine the wireless network temporary identifier used for the downlink control information format including the ETWS indication field, the CMAS indication field and the first bit field;

The scrambling module is configured to use the wireless network temporary identifier to scramble the downlink control information format.
The apparatus according to claim 19, wherein, in the narrowband Internet of Things, the control channel search space used to transmit the ETWS indication and the CMAS indication has the same carrier configuration and start as the search space dedicated to the control channel terminal. Subframe configuration and maximum repetition configuration.
An information receiving device includes:

Receiving module: configured to receive the downlink control information format sent by the first communication node by the second communication node;

The downlink control information format includes an earthquake and tsunami warning system ETWS indicator field, a commercial mobile alert service CMAS indicator field and a first bit field; the ETWS indicator field is used to determine the ETWS indicator, and the CMAS indicator field is used to determine the CMAS indicator.
The device according to claim 28, further comprising:

The first execution module: set to detect the system information block type corresponding to the ETWS main notification through the second communication node when the value of the ETWS indication field is the fourth value;

The second execution module: set to detect the system information block type corresponding to the ETWS main notification and the system information corresponding to the ETWS secondary notification through the second communication node when the value of the ETWS indication field is the fifth value Block type.
The device according to claim 28, further comprising:

The third execution module is set to detect the system information block type 1 through the second communication node when the value of the ETWS indication field is the fourth value, and obtain the scheduling information list in the system information block type 1 In the case where the scheduling information list indicates that at least one of the system information block type corresponding to the ETWS main notification and the system information block type corresponding to the ETWS secondary notification exists, the second communication node detects the At least one of the system information block type corresponding to the ETWS main notification and the system information block type corresponding to the ETWS auxiliary notification;

Fourth execution module: set to detect the system information block type corresponding to the ETWS main notification through the second communication node when the value of the ETWS indication field is the fifth value;

Fifth execution module: set to detect the system information block type corresponding to the ETWS main notification and the system information corresponding to the ETWS secondary notification through the second communication node when the value of the ETWS indication field is the sixth value Block type.
The device according to claim 28, further comprising:

The sixth execution module: set to detect the master information block MIB through the second communication node when the value of the ETWS indication field is the fourth value; according to the information of the MIB, through the second communication node Detect the system information block type 1, and obtain the scheduling information list in the system information block type 1. The scheduling information list indicates the system information block type corresponding to the ETWS main notification and the system information block type corresponding to the ETWS auxiliary notification If at least one of is present, detecting at least one of the system information block type corresponding to the ETWS main notification and the system information block type corresponding to the ETWS auxiliary notification through the second communication node;

The seventh execution module: set to detect the system information block type 1 through the second communication node when the value of the ETWS indication field is the fifth value, and obtain the scheduling information list in the system information block type 1 In the case where the scheduling information list indicates that at least one of the system information block type corresponding to the ETWS main notification and the system information block type corresponding to the ETWS secondary notification exists, the second communication node detects the At least one of the system information block type corresponding to the ETWS main notification and the system information block type corresponding to the ETWS auxiliary notification.
The apparatus according to claim 28, wherein the first bit field includes a master information block (MIB) indicator field; and the apparatus further includes:

The eighth execution module: set to detect the main information block MIB through the second communication node when the value of the ETWS indication field is the seventh value and the value of the main information block MIB indication field is the seventh value According to the information of the MIB, the system information block type 1 is detected through the second communication node, and the scheduling information list in the system information block type 1 is obtained; the scheduling information list indicates the system corresponding to the ETWS master notification When at least one of the information block type and the system information block type corresponding to the ETWS auxiliary notification exists, the second communication node detects the system information block type and the ETWS auxiliary notification corresponding to the ETWS main notification. At least one of the corresponding system information block types;

The ninth execution module: set to detect the system information block type through the second communication node when the value of the ETWS indication field is the seventh value and the value of the main information block MIB indication field is the eighth value 1. Obtain the scheduling information list in the system information block type 1; the scheduling information list indicates that at least one of the system information block type corresponding to the ETWS main notification and the system information block type corresponding to the ETWS secondary notification is If it exists, at least one of the system information block type corresponding to the ETWS main notification and the system information block type corresponding to the ETWS auxiliary notification is detected through the second communication node.
The device according to claim 28, further comprising:

The tenth execution module is set to detect the system information block type corresponding to the CMAS notification through the second communication node when the value of the CMAS indication field is the ninth value.
The device according to claim 28, further comprising:

The eleventh execution module: set to detect system information block type 1 through the second communication node when the value of the CMAS indication field is the ninth value, and obtain scheduling information in the system information block type 1 List; in the case where the scheduling information list indicates that the system information block type corresponding to the CMAS notification exists, the second communication node detects the system information block type corresponding to the CMAS notification;

The twelfth execution module is set to detect the system information block type corresponding to the CMAS notification through the second communication node when the value of the CMAS indication field is the tenth value.
The device according to claim 28, further comprising:

The thirteenth execution module: set to detect the master information block MIB through the second communication node when the value of the CMAS indication field is the ninth value; according to the information of the MIB, through the second communication The node detects the system information block type 1, and obtains the scheduling information list in the system information block type 1. When the scheduling information list indicates that the system information block type corresponding to the CMAS notification exists, through the second communication The node detects the system information block type corresponding to the CMAS notification;

Fourteenth execution module: set to detect system information block type 1 through the second communication node when the value of the CMAS indication field is the tenth value, and obtain scheduling information in the system information block type 1 List; in the case where the scheduling information list indicates that the system information block type corresponding to the CMAS notification exists, the second communication node detects the system information block type corresponding to the CMAS notification.
The apparatus according to claim 28, wherein the first bit field includes a master information block (MIB) indicator field; and the apparatus further includes:

The fifteenth execution module: set to detect the master through the second communication node when the value of the CMAS indicator field is the eleventh value and the value of the master information block MIB indicator field is the eleventh value Information block MIB; according to the information of the MIB, the system information block type 1 is detected by the second communication node to obtain the scheduling information list in the system information block type 1; the scheduling information list indicates the corresponding CMAS notification If the system information block type of is present, the second communication node detects the system information block type corresponding to the CMAS notification;

Sixteenth execution module: set to detect the system through the second communication node when the value of the CMAS indication field is the eleventh value and the value of the main information block MIB indication field is the twelfth value Information block type 1, to obtain the scheduling information list in the system information block type 1; in the case that the scheduling information list indicates that the system information block type corresponding to the CMAS notification exists, the second communication node detects the The system information block type corresponding to the CMAS notification.
A storage medium storing a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1-18 is implemented.