CN113973270B

CN113973270B - Message sending and receiving methods, devices and communication equipment

Info

Publication number: CN113973270B
Application number: CN202010718712.2A
Authority: CN
Inventors: 姜蕾
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2023-05-02
Anticipated expiration: 2040-07-23
Also published as: WO2022017466A1; CN113973270A

Abstract

The application discloses a message sending method, a message receiving method, a message sending device, a message receiving device and communication equipment, and belongs to the technical field of communication. The message sending method applied to the network side equipment comprises the following steps: sending an RTS message; the RTS message includes first information, where the first information is used to determine a terminal that needs to feed back a CTS message. Therefore, the terminal needing to feed back the CTS message can be indicated when the RTS message is sent, so that the network side equipment and the terminal accurately complete the handshake process.

Description

Message sending and receiving methods, devices and communication equipment

Technical Field

The application belongs to the technical field of communication, and particularly relates to a message sending method, a message receiving method, a message sending device, a message receiving device and communication equipment.

Background

In the prior art, when a handshake mechanism is used for channel access in a shared spectrum, such as unlicensed band (unlicensed band), a Request-To-Send (RTS) mechanism may be used. A handshake mechanism may also be introduced in a New air interface (NR) to perform channel access, and a network side device, such as a base station/TRP, may send an RTS message to multiple terminals at the same time. However, in this case, the handshake procedure in this case of base station/TRP is not yet determined.

Disclosure of Invention

The embodiment of the application aims to provide a message sending method, a message receiving device and communication equipment, so as to solve the problem of how to finish a handshake process when network side equipment can send RTS messages to a plurality of terminals at the same time.

In order to solve the technical problems, the application is realized as follows:

in a first aspect, a method for sending a message is provided, including:

network side equipment sends RTS message; the RTS message includes first information, where the first information is used to determine a terminal that needs to feed back a CTS message.

In a second aspect, there is provided a message receiving method, including:

the terminal receives an RTS message sent by network side equipment; the RTS message includes first information, where the first information is used to determine a terminal that needs to feed back a CTS message.

In a third aspect, a message sending apparatus is provided, which is applied to a network side device, and includes:

a sending module, configured to send an RTS message; the RTS message includes first information, where the first information is used to determine a terminal that needs to feed back a CTS message.

In a fourth aspect, there is provided a message receiving apparatus applied to a terminal, including:

A fifth receiving module, configured to receive an RTS message sent by a network side device;

the RTS message includes first information, where the first information is used to determine a terminal that needs to feed back a CTS message.

In a fifth aspect, there is provided a communication device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, the program or instruction when executed by the processor implementing the steps of the method as described in the first aspect or implementing the steps of the method as described in the second aspect.

In a sixth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method according to the first aspect or performs the steps of the method according to the second aspect.

In a seventh aspect, a chip is provided, the chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being configured to execute programs or instructions, to implement the steps of the method according to the first aspect, or to implement the steps of the method according to the second aspect.

In the embodiment of the present application, the network side device may send an RTS message, where the RTS message includes first information, where the first information is used to determine a terminal that needs to feed back a CTS message. Therefore, when the network side equipment can send RTS messages to a plurality of terminals at the same time, the terminals needing to feed back CTS messages are indicated when the RTS messages are sent, so that the network side equipment and the terminals accurately complete the handshake process.

Drawings

Fig. 1 is a block diagram of a wireless communication system provided in an embodiment of the present application;

fig. 2 is a flowchart of a message sending method provided in an embodiment of the present application;

fig. 3 is a flowchart of a message receiving method provided in an embodiment of the present application;

fig. 4 is a schematic structural diagram of a message sending device according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a message receiving device according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a terminal according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a network side device according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the "first" and "second" distinguished objects generally are of the type and do not limit the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It is noted that the techniques described in embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE-Advanced (LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple Access (Time Division Multiple Access, TDMA), frequency division multiple Access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple Access (Orthogonal Frequency Division Multiple Access, OFDMA), single-Carrier frequency division multiple Access (Single-carrier Frequency-Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the present application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. However, the following description describes a New air interface (NR) system for purposes of example, and NR terminology is used in much of the following description, although the techniques are also applicable to applications other than NR system applications, such as generation 6 (6 ^th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may also be called a terminal Device or a User Equipment (UE), the terminal 11 may be a mobile phone, a tablet Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a terminal-side Device called a notebook Computer, a personal digital assistant (Personal Digital Assistant, PDA), a palm Computer, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet Device (Mobile Internet Device, MID), a Wearable Device (Wearable Device) or a vehicle-mounted Device (Vehicle User Equipment, VUE), a pedestrian terminal (Pedestrian User Equipment, PUE), and the Wearable Device includes: a bracelet, earphone, glasses, etc. Note that, the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may be a base station/TRP or a core network, where the base station/TRP may be referred to as a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station/TRP, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, a transmission receiving point (Transmitting Receiving Point, TRP), or some other suitable term in the field, and the base station/TRP is not limited to a specific technical vocabulary, and it should be noted that, in the embodiment of the present application, only the base station/TRP in the NR system is taken as an example, but the specific type of the base station/TRP is not limited.

To facilitate an understanding of the embodiments of the present application, the following is first described.

In future communication systems, shared spectrum such as unlicensed band (unlicensed band) may be used as a supplement to licensed band (licensed band) to help operators expand services. To keep pace with NR deployments and maximize as much as possible unlicensed access based on NR, unlicensed bands may operate in the 5GHz, 37GHz and 60GHz bands. Since unlicensed bands are shared by multiple technologies (Radio Access Technology, RATs), such as Wi-Fi, radar, LTE-based Licensed-Assisted Access to unlicensed spectrum (LTE-LAA), etc., unlicensed bands must be used in certain countries or regions to meet regulatory regulations to ensure that all devices can fairly share the resource, such as listen-before-transmit channels (Listen Before Talk, LBT), maximum channel occupancy time (Maximum Channel Occupancy Time, MCOT), etc. When the transmission node needs to send information, it is required to perform LBT on a designated wireless channel, perform Energy Detection (ED) on the surrounding wireless transmission environment, and when the detected Energy is lower than a certain threshold, the channel is determined to be idle, and transmission can be started at this time. Otherwise, the channel is considered as busy, and the transmission node cannot transmit. The transmission node may be a base station/TRP, UE, wi-Fi Access Point (AP) or the like. After the transmission node starts transmission, the occupied channel time cannot exceed MCOT.

LBT can solve a part of the channel interference problem, but since LBT is initiated by the originating node, it cannot solve the hidden node problem of the receiving node. For example, gNB1 makes LBT before transmitting data, and listens that the channel is empty, so gNB1 transmits data to UE1, and UE1 receives data. At this time, UE2 has data to transmit, and performs LBT, because gNB1 is relatively far away, UE1 is in a receiving state, so UE2 listens to the channel being empty, and starts to transmit data. However, since UE2 and UE1 are closely spaced, UE1 may receive the information sent by UE2, and UE1 may be interfered when receiving the data of gNB 1. UE2 is a hidden node of UE 1.

To avoid the hidden node problem, for transmission in the unlicensed band, a handshake mechanism of RTS/CTS or a transmission request/transmission acknowledgement mechanism may be introduced. For example, a handshake mechanism may be introduced in the NR system to perform channel access, and a network device, such as a base station/TRP, may send RTS messages to multiple terminals at the same time. Thus, how to indicate in the RTS message that the terminal that needs to feed back the CTS message in the NR system is an urgent problem to be solved.

In the embodiment of the present application, the CTS message may also be referred to as a confirm to send message, or as a confirm to send message.

The message sending method and the message receiving method provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings by specific embodiments and application scenarios thereof.

Referring to fig. 2, fig. 2 is a flowchart of a message sending method provided in an embodiment of the present application, where the method is applied to a network side device, as shown in fig. 2, and the method includes the following steps:

step 21: the network side equipment sends an RTS message.

In this embodiment, the RTS message includes first information, where the first information is used to determine a terminal that needs to feed back the CTS message. For example, the first information may be used to indicate a terminal that needs to feed back the CTS message, or may be used to indicate a terminal that does not need to feed back the CTS message.

Therefore, by sending the RTS message comprising the first information, when the network side equipment can send the RTS message to a plurality of terminals at the same time, the terminal needing to feed back the CTS message is indicated when the RTS message is sent, so that the network side equipment and the terminal accurately complete a handshake process. For example, under a multiple RTS (multi-RTS) mechanism, the network side device and at least one terminal can be enabled to accurately complete the handshake process.

In this embodiment of the present application, the first information may be selected from a plurality of forms, which are respectively described below.

Form 1:

in this form 1, the first information includes an index corresponding to target terminal combination information including information about terminals that need to feed back CTS messages, for example, the target terminal combination information may include information about one or more terminals that need to feed back CTS messages. Thus, by means of the index, the relevant information of the terminal that needs to feed back the CTS message can be indicated.

In the embodiment of the application, a plurality of terminal combination information can be configured through radio resource control (Radio Resource Control, RRC) configuration information, where each terminal combination information can include information related to at least one terminal. The related information of one terminal may be contained in different terminal combination information. It should be noted that the terminal combination information may also be referred to as terminal configuration information, and may be understood as a combination of related information of at least one terminal.

Optionally, before sending the RTS message, the network side device may send RRC configuration information to the terminal, where the RRC configuration information includes a plurality of terminal combination information, where one terminal combination information corresponds to one index, and one terminal combination information may include information about at least one terminal.

Alternatively, the related information of one terminal may be included in one or more terminal combination information.

Optionally, the relevant information of the terminal may include at least one of the following:

terminal identification, such as UE ID;

grouping information of the terminal; the grouping information is used for indicating divided multiple terminal combination information, and each terminal combination information corresponds to a group ID;

CTS sends indication information; for example, the CTS transmission indication information may include, but is not limited to, CTS message format, spatial information (Spatial info), etc.;

CTS resource indication information; for example, the CTS resource indication information includes time domain, frequency domain resource indication information of CTS, and may include, but is not limited to, CTS message transmission time, PUCCH resource indication (PUCCH Resource Indication, PRI), etc.

Optionally, after sending the RTS message, the network side device may further receive a CTS message fed back by the terminal corresponding to the target terminal combination information, so as to complete the handshake process.

In one embodiment, the RTS message sent by the gNB carries an index (index) corresponding to the UE combination information. And then, after receiving the RTS message, the UE in the UE combination information sends a CTS message to the gNB as a response.

Form 2:

in this form 2, the first information may include any one of:

1) Group identification, such as group ID, of a target terminal group (UE group) that needs to feed back the CTS message.

Optionally, in the case that the first information includes a group ID of a target terminal group that needs to feed back the CTS message, the network side device may receive the CTS message fed back by the terminal in the target terminal group after sending the RTS message. For example, if the RTS message sent by the gNB includes the group ID 1, all terminals in the terminal group corresponding to the group ID 1 need to feed back the CTS message after receiving the RTS message.

It should be noted that the target terminal group is a terminal group that needs to feed back a CTS message.

In an embodiment, when a terminal that needs to feed back a CTS message exists in a certain terminal group, the network side device may send an RTS message including a group identifier of the terminal group, where the number of terminals that need to feed back the CTS message may be 1 or more.

2) A first bitmap (bitmap). The first bitmap is used for indicating whether the terminal group needs to feed back the CTS message. In the first bitmap, each bit corresponds to a terminal group. For example, a bit value of 1 indicates that all terminals in the corresponding terminal group need to feed back CTS messages, and a bit value of 0 indicates that all terminals in the corresponding terminal group do not need to feed back CTS messages.

Optionally, in the case that the first information includes the first bitmap, after sending the RTS message, the network side device may receive a CTS message indicated by the first bitmap and fed back by a terminal in the terminal group that needs to feed back the CTS message. For example, if the RTS message sent by the gNB includes bitmap1, all terminals in the terminal group that need to feed back the CTS message indicated by the bitmap1 need to feed back the CTS message after receiving the RTS message.

3) A group identity of the group of terminals, and a second bitmap. Wherein the second bitmap is used to indicate whether terminals in the terminal group need to feed back CTS messages. Each bit in the second bitmap corresponds to one terminal in the terminal group. For example, a bit value of 1 indicates that the corresponding terminal needs to feed back the CTS message, and a bit value of 0 indicates that the corresponding terminal does not need to feed back the CTS message.

Optionally, in the case that the first information includes a group identifier of the target terminal group and a second bitmap, the network side device may receive a CTS message fed back by the first terminal in the target terminal group after sending the RTS message, where the second bitmap indicates that the first terminal needs to feed back the CTS message. For example, the RTS message sent by the gNB includes a group ID 2 and a bitmap 2, and all terminals indicated by the bitmap 2 in the terminal group corresponding to the group ID 2 that need to feed back the CTS message after receiving the RTS message.

Note that in 3), the RTS message may include a plurality of second bitmaps and group IDs corresponding to the plurality of second bitmaps. In this case, the terminals can only belong to one terminal group when grouping.

4) And a third bitmap. The third bitmap is used for indicating whether the terminal needs to feed back the CTS message. At this time, the terminals are not grouped, and all terminals are indicated by bitmap. In the third bitmap, each bit corresponds to a terminal. For example, a bit value of 1 indicates that the corresponding terminal needs to feed back the CTS message, and a bit value of 0 indicates that the corresponding terminal does not need to feed back the CTS message.

Optionally, in the case that the first information includes a third bitmap, the network side device may receive a CTS message fed back by the second terminal after sending the RTS message, where the third bitmap indicates that the second terminal needs to feed back the CTS message. For example, if the RTS message sent by the gNB includes bitmap 3, all terminals indicated by the bitmap 3 that need to feed back the CTS message after receiving the RTS message.

Optionally, in this form 2, the network side device may send packet information to the terminal through at least one of: RRC configuration information, broadcast signals, downlink control information (Downlink Control Information, DCI). The grouping information is used for indicating a plurality of divided terminal groups, and each terminal group corresponds to one group identifier. Each terminal may be affiliated with one or more terminal groups.

Form 3:

in this form 3, the first information includes an index corresponding to target CTS configuration information corresponding to at least one terminal that needs to feed back a CTS message. The number of bits of the index depends on the number of corresponding CTS configuration information. Thus, by means of the index, the relevant information of the terminal that needs to feed back the CTS message can be indicated.

In this embodiment of the present application, before sending the RTS message, the network side device may send at least one of the following through a broadcast signal:

a plurality of CTS configuration information; wherein, one CTS configuration information corresponds to one index;

mapping rules between the terminal and CTS configuration information; by means of the mapping rule, the terminal can obtain corresponding CTS sending indication information, CTS resource indication information and the like through CTS configuration information.

Alternatively, one terminal may correspond to one or more CTS configuration information. One CTS configuration information may correspond to one or more terminals.

Optionally, the CTS configuration information may include at least one of:

CTS transmission indication information of at least one terminal; for example, the CTS transmission indication information may include, but is not limited to, CTS message format, spatial information (Spatial info), etc.;

CTS resource indication information of at least one terminal; the CTS resource indication information includes time domain, frequency domain resource indication information of CTS, and may include, but is not limited to, CTS message transmission time, PRI, etc.

Optionally, after sending the RTS message, the network side device may receive the CTS message fed back by the terminal corresponding to the target CTS configuration information according to the CTS message fed back by the target CTS configuration information, so as to complete the handshake process.

In one embodiment, the RTS message sent by the gNB includes an index (index) corresponding to some CTS configuration information. After receiving the RTS message, all terminals having a mapping relationship with the CTS configuration information may send a CTS message according to the CTS configuration information.

Form 4:

in this form 4, the first information includes a group identification, such as a group ID, of the target terminal group that needs to feed back the CTS message. It should be noted that the target terminal group is a terminal group that needs to feed back a CTS message.

Optionally, in this form 4, the network side device may send packet information to the terminal through at least one of: RRC configuration information, broadcast signals, downlink control information (Downlink Control Information, DCI). The grouping information is used for indicating a plurality of divided terminal groups, and each terminal group corresponds to one group identifier. Each terminal may be affiliated with one or more terminal groups.

Optionally, before sending the RTS message, the network side device may send CTS configuration information to different terminal groups respectively, so as to configure CTS information for the different terminal groups. Each terminal group corresponds to one CTS configuration information.

Optionally, after sending the RTS message, the network side device may receive a CTS message sent by a terminal in the target terminal group according to CTS configuration information corresponding to the target terminal group.

In one embodiment, the RTS message sent by the gNB includes a group ID, and after receiving the RTS message, all terminals in the terminal group corresponding to the group ID send a CTS message according to CTS configuration information corresponding to the group ID.

Referring to fig. 3, fig. 3 is a flowchart of a message receiving method provided in an embodiment of the present application, where the method is applied to a terminal, as shown in fig. 3, and the method includes the following steps:

step 31: and the terminal receives the RTS message sent by the network side equipment.

Therefore, the terminal needing to feed back the CTS message can be indicated when the RTS message is sent, so that the network side equipment and the terminal accurately complete the handshake process. For example, under the multiple RTS mechanism, the network side device and at least one terminal can accurately complete the handshake process.

Optionally, the first information is an index corresponding to target terminal combination information, where the target terminal combination information includes information related to a terminal that needs to feed back a CTS message.

Optionally, before the receiving the RTS message sent by the network side device, the terminal may receive RRC configuration information sent by the network side device;

the RRC configuration information comprises a plurality of pieces of terminal combination information, one piece of terminal combination information corresponds to one index, and the other piece of terminal combination information comprises relevant information of at least one terminal.

Optionally, the relevant information of the terminal includes at least one of the following:

a terminal identifier;

grouping information of the terminal;

CTS sends indication information;

CTS resource indication information.

Optionally, the first information is any one of the following:

group identification of the target terminal group requiring feedback of the CTS message;

a first bitmap; the first bitmap is used for indicating whether the terminal group needs to feed back a CTS message or not;

group identification of the terminal group and a second bitmap; the second bitmap is used for indicating whether terminals in the terminal group need to feed back a CTS message or not;

a third bitmap; the third bitmap is used for indicating whether the terminal needs to feed back the CTS message.

Optionally, the first information is an index corresponding to target CTS configuration information, where the target CTS configuration information corresponds to at least one terminal that needs to feed back a CTS message.

Optionally, before receiving the RTS message sent by the network side device, the terminal may receive at least one of the following through a broadcast signal:

mapping rules between terminals and CTS configuration information.

Optionally, the first information is a group identifier of a target terminal group that needs to feed back the CTS message.

Optionally, before receiving the RTS message sent by the network side device, the terminal may receive packet information sent by the network side device through at least one of the following:

RRC configuration information, broadcast signals, DCI;

the grouping information is used for indicating a plurality of divided terminal groups, and one terminal group corresponds to one group identifier.

Optionally, before receiving the RTS message sent by the network side device, the terminal may receive CTS configuration information corresponding to a terminal group where the terminal is located, where the terminal is sent by the network side device.

It should be noted that the transmission involved in the message sending method and the receiving method is downlink transmission, but it is understood that the corresponding handshake procedure may also be applied to side link transmission and downlink transmission, which are described below.

1> sidelink transmission

In the case of a side link transmission, the third terminal may send an RTS message including first information for determining terminals that need to feed back a CTS message. For example, the first information may be used to indicate a terminal that needs to feed back the CTS message, or may be used to indicate a terminal that does not need to feed back the CTS message.

Further, the first information may be selected from various forms, which are described below.

Form 1:

in this form 1, the first information includes an index corresponding to the target terminal combination information, where the target terminal combination information includes information about a terminal that needs to feed back the CTS message, for example, the target terminal combination information may include information about one or more terminals that need to feed back the CTS message. Thus, by means of the index, the relevant information of the terminal that needs to feed back the CTS message can be indicated.

In this embodiment of the present application, the network side device may configure a plurality of terminal combination information through RRC configuration information, where one terminal combination information may include information about at least one terminal. The related information of one terminal may be contained in different terminal combination information. It should be noted that the terminal combination information may also be referred to as terminal configuration information, and may be understood as a combination of related information of at least one terminal.

Optionally, the network side device may send RRC configuration information to the terminal, where the RRC configuration information includes a plurality of terminal combination information, one terminal combination information corresponds to one index, and one terminal combination information may include information about at least one terminal.

terminal identification, such as UE ID;

CTS resource indication information; for example, the CTS resource indication information includes time domain, frequency domain resource indication information of CTS, and may include, but is not limited to, CTS message transmission time, PSCCH resource indication, and the like.

Optionally, after sending the RTS message, the third terminal may receive a CTS message fed back by the terminal corresponding to the target terminal combination information, so as to complete the handshake process.

Form 2:

in this form 2, the first information may include any one of:

Alternatively, in the case that the first information includes a group ID of a target terminal group that needs to feed back the CTS message, the third terminal may receive the CTS message fed back by the terminals in the target terminal group after sending the RTS message.

Optionally, in the case that the first information is the first bitmap, after sending the RTS message, the third terminal may receive a CTS message indicated by the first bitmap and fed back by a terminal in the terminal group that needs to feed back the CTS message.

Optionally, in the case that the first information is the group identifier of the target terminal group and the second bitmap, the third terminal may receive the CTS message fed back by the first terminal in the target terminal group after sending the RTS message, where the second bitmap indicates that the first terminal needs to feed back the CTS message.

Optionally, in the case that the first information is the third bitmap, the third terminal may receive the CTS message fed back by the second terminal after sending the RTS message, where the third bitmap indicates that the second terminal needs to feed back the CTS message.

Form 3:

In the embodiment of the present application, the network side device may send at least one of the following through a broadcast signal:

Optionally, the CTS configuration information may include at least one of:

CTS resource indication information of at least one terminal; the CTS resource indication information includes time domain, frequency domain resource indication information of CTS, and may include, but is not limited to, CTS message transmission time, PSCCH resource indication, etc.

Optionally, after sending the RTS message, the third terminal may receive a CTS message fed back by the terminal corresponding to the target CTS configuration information according to the target CTS configuration information, so as to complete the handshake process.

Form 4:

Optionally, the network side device may send CTS configuration information to different terminal groups respectively, so as to configure CTS information for different terminal groups. Each terminal group corresponds to one CTS configuration information.

Optionally, after sending the RTS message, the third terminal may receive a CTS message sent by a terminal in the target terminal group according to CTS configuration information corresponding to the target terminal group.

2> uplink transmission

In the case of uplink transmission, the fourth terminal may send an RTS message, where the RTS message includes first information, where the first information is used to determine a network side device that needs to feed back a CTS message. For example, the first information may be used to indicate that the network side device needs to feed back the CTS message, or may be used to indicate that the network side device does not need to feed back the CTS message.

The following description uses the network side device as the base station/TRP as an example, but not limited thereto.

Form 1:

in this form 1, the first information includes an index corresponding to the target base station/TRP combination information, where the target base station/TRP combination information includes information related to a base station/TRP that needs to feed back the CTS message, for example, the target base station/TRP combination information may include information related to one or more base stations/TRPs that need to feed back the CTS message. Thus, with the aid of the index, the relevant information of the base station/TRP that needs to feed back the CTS message can be indicated.

In the embodiment of the application, the base station/TRP may configure a plurality of base station/TRP combination information, where one base station/TRP combination information may include information about at least one base station or TRP. The related information of one base station/TRP may be included in the different base station/TRP combination information. It should be noted that the base station/TRP combination information may also be referred to as base station/TRP configuration information, and may be understood as a combination of information related to at least one base station/TRP.

Alternatively, the related information of one base station/TRP may be included in the one or more base station/TRP combination information.

Optionally, the above base station/TRP related information may include at least one of the following:

base station/TRP identification, such as gNB ID, TRP ID;

grouping information of base station/TRP; wherein, the grouping information is used for indicating divided multiple base stations/TRP combination information, and each base station/TRP combination information corresponds to a group ID;

CTS resource indication information; for example, the CTS resource indication information includes time domain, frequency domain resource indication information of CTS, and may include, but is not limited to, CTS message transmission time, PDCCH resource indication, etc.

Optionally, after sending the RTS message, the fourth terminal may receive a CTS message fed back by the base station/TRP corresponding to the target base station/TRP combination information, so as to complete the handshake process.

Form 2:

in this form 2, the first information may include any one of:

1) Group identification, such as group ID, of the target base station/TRP group (gNB/TRP group) requiring feedback CTS message.

Alternatively, in the case that the first information includes a group ID of a target base station/TRP group to which the CTS message needs to be fed back, the fourth terminal may receive the CTS message fed back by the base stations/TRPs in the target base station/TRP group after sending the RTS message.

It should be noted that the target base station/TRP group is a base station/TRP group requiring feedback of CTS messages.

2) A first bitmap (bitmap). Wherein the first bitmap is used to indicate whether the base station/TRP group needs to feed back the CTS message. In the first bitmap, each bit corresponds to a base station/TRP group. For example, a bit value of 1 indicates that all base stations/TRPs in the corresponding base station/TRP group need to feed back a CTS message, and a bit value of 0 indicates that all base stations/TRPs in the corresponding base station/TRP group do not need to feed back a CTS message.

Optionally, in the case that the first information is the first bitmap, after sending the RTS message, the fourth terminal may receive a CTS message indicated by the first bitmap and needing to feed back a base station/TRP feedback in the base station/TRP group of the CTS message.

3) A group identity of the base station/TRP group, and a second bitmap. Wherein the second bitmap is used to indicate whether the base station/TRP in the base station/TRP group needs to feed back a CTS message. In the second bitmap, each bit corresponds to one base station/TRP of the group of base stations/TRPs. For example, a bit value of 1 indicates that the corresponding base station/TRP needs to feed back the CTS message, and a bit value of 0 indicates that the corresponding base station/TRP does not need to feed back the CTS message.

Optionally, in the case that the first information is the group identifier of the target base station/TRP group and the second bitmap, the fourth terminal may receive a CTS message fed back by the first base station/TRP in the target base station/TRP group after sending the RTS message, where the second bitmap indicates that the first base station/TRP needs to feed back the CTS message.

4) And a third bitmap. Wherein the third bitmap is used to indicate whether the base station/TRP needs to feed back the CTS message. At this time, the base stations/TRPs are not grouped, and all the base stations/TRPs are indicated by bitmap. In the third bitmap, each bit corresponds to one base station/TRP. For example, a bit value of 1 indicates that the corresponding base station/TRP needs to feed back the CTS message, and a bit value of 0 indicates that the corresponding base station/TRP does not need to feed back the CTS message.

Optionally, in the case that the first information is the third bitmap, the fourth terminal may receive the CTS message fed back by the second base station/TRP after sending the RTS message, where the third bitmap indicates that the second base station/TRP needs to feed back the CTS message.

Form 3:

in this form 3, the first information includes an index corresponding to target CTS configuration information corresponding to at least one base station/TRP that needs to feed back a CTS message. The number of bits of the index depends on the number of corresponding CTS configuration information. Thus, with the aid of the index, the relevant information of the base station/TRP that needs to feed back the CTS message can be indicated.

Alternatively, one base station/TRP may correspond to one or more CTS configuration information. One CTS configuration information may correspond to one or more terminals.

Optionally, the CTS configuration information may include at least one of:

CTS transmission indication information of at least one base station/TRP; for example, the CTS transmission indication information may include, but is not limited to, CTS message format, spatial information (Spatial info), etc.;

CTS resource indication information of at least one base station/TRP; the CTS resource indication information includes time domain, frequency domain resource indication information of CTS, and may include, but is not limited to, CTS message transmission time, PDCCH resource indication, etc.

Optionally, after sending the RTS message, the fourth terminal may receive the base station/TRP corresponding to the target CTS configuration information, and complete the handshake process according to the CTS message fed back by the target CTS configuration information.

Form 4:

in this form 4, the first information includes a group identification, such as a group ID, of the target base station/TRP group that needs to feed back the CTS message. It should be noted that the target base station/TRP group is a base station/TRP group requiring feedback of CTS messages.

Optionally, after sending the RTS message, the fourth terminal may receive a CTS message sent according to CTS configuration information corresponding to the target base station/TRP group by the base station/TRP in the target base station/TRP group.

It should be noted that, in the message sending method provided in the embodiment of the present application, the execution body may be a message sending device, or a control module in the message sending device for executing the message sending method. In the embodiment of the present application, a message sending device executes a message sending method as an example, and a message sending device provided in the embodiment of the present application is described.

Referring to fig. 4, fig. 4 is a schematic structural diagram of a message sending apparatus provided in an embodiment of the present application, which is applied to a network side device, as shown in fig. 4, the message sending apparatus 40 includes:

a sending module 41, configured to send an RTS message;

Optionally, the first information is an index corresponding to target terminal combination information, where the target terminal combination information includes at least one piece of information related to a terminal that needs to feed back a CTS message.

Optionally, the sending module 41 is further configured to:

transmitting Radio Resource Control (RRC) configuration information to a terminal;

Optionally, the related information of each terminal is included in one or more terminal combination information.

a terminal identifier;

grouping information of the terminal;

CTS sends indication information;

CTS resource indication information.

Optionally, the message sending device 40 further includes:

and the first receiving module is used for receiving the CTS message fed back by the terminal corresponding to the target terminal combination information.

Optionally, the first information includes any one of the following:

Optionally, the message sending device 40 further includes:

a second receiving module, configured to receive a CTS message fed back by a terminal in a target terminal group when the first information includes a group identifier of the target terminal group that needs to feed back the CTS message;

Or, in the case that the first information includes a first bitmap, receiving a CTS message, indicated by the first bitmap, fed back by a terminal in a terminal group that needs to feed back the CTS message;

or, in the case that the first information includes a group identifier of a terminal group and a second bitmap, receiving a CTS message fed back by a first terminal in the terminal group; wherein the second bitmap indicates that the first terminal needs to feed back a CTS message;

or, in the case that the first information includes the third bitmap, receiving a CTS message fed back by the second terminal; wherein the third bitmap indicates that the second terminal needs to feed back a CTS message.

Optionally, the first information includes an index corresponding to target CTS configuration information, where the target CTS configuration information corresponds to at least one terminal that needs to feed back a CTS message.

Optionally, the sending module 41 is further configured to:

transmitting at least one of the following through a broadcast signal:

a plurality of CTS configuration information; wherein, each CTS configuration information corresponds to an index;

mapping rules between terminals and CTS configuration information.

Optionally, one terminal corresponds to one or more CTS configuration information.

Optionally, the message sending device 40 further includes:

And the third receiving module is used for receiving the CTS message fed back by the terminal corresponding to the target CTS configuration information according to the target CTS configuration information.

Optionally, the CTS configuration information includes at least one of:

CTS transmission indication information of at least one terminal;

CTS resource indication information of at least one terminal.

Optionally, the first information includes a group identifier of a target terminal group that needs to feed back the CTS message.

Optionally, the sending module 41 is further configured to:

transmitting packet information to the terminal by at least one of:

RRC configuration information, broadcast signals and downlink control information DCI;

Optionally, the sending module 41 is further configured to:

sending CTS configuration information to different terminal groups respectively; wherein, a terminal group corresponds to a CTS configuration information.

Optionally, the message sending device 40 further includes:

and a fourth receiving module, configured to receive a CTS message sent by a terminal in the target terminal group according to CTS configuration information corresponding to the target terminal group.

The message sending device 40 provided in this embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 2, and achieve the same technical effects, and for avoiding repetition, a detailed description is omitted herein.

It should be noted that, in the message receiving method provided in the embodiment of the present application, the execution body may be a message receiving apparatus, or a control module in the message receiving apparatus for executing the message receiving method. In the embodiment of the present application, a message receiving device executes a message receiving method as an example, and the message receiving device provided in the embodiment of the present application is described.

Referring to fig. 5, fig. 5 is a schematic structural diagram of a message receiving apparatus provided in an embodiment of the present application, and the message receiving apparatus 50, as shown in fig. 5, is applied to a terminal, and includes:

a fifth receiving module 51, configured to receive an RTS message sent by a network side device;

Optionally, the first information includes an index corresponding to the target terminal combination information, where the target terminal combination information includes at least one piece of information related to the terminal that needs to feed back the CTS message.

Optionally, the fifth receiving module 51 is further configured to:

receiving RRC configuration information sent by the network side equipment;

a terminal identifier;

grouping information of the terminal;

CTS sends indication information;

CTS resource indication information.

Optionally, the first information includes any one of the following:

Optionally, the fifth receiving module 51 is further configured to:

receiving at least one of the following through a broadcast signal:

mapping rules between terminals and CTS configuration information.

Optionally, the fifth receiving module 51 is further configured to:

receiving packet information sent by the network side equipment through at least one of the following steps:

RRC configuration information, broadcast signals, DCI;

Optionally, the fifth receiving module 51 is further configured to:

and receiving CTS configuration information corresponding to a terminal group where the terminal is located, wherein the CTS configuration information is sent by the network side equipment.

The message receiving device in the embodiment of the application may be a device, or may be a component, an integrated circuit, or a chip in a terminal. The device may be a mobile terminal or a non-mobile terminal. By way of example, mobile terminals may include, but are not limited to, the types of terminals 11 listed above, and non-mobile terminals may be servers, network attached storage (Network Attached Storage, NAS), personal computers (personal computer, PCs), televisions (TVs), teller machines, self-service machines, etc., and embodiments of the present application are not limited in detail.

The message receiving device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.

The message receiving apparatus 50 provided in this embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 3, and achieve the same technical effects, and for avoiding repetition, a detailed description is omitted herein.

Optionally, as shown in fig. 6, the embodiment of the present application further provides a communication device 60, including a processor 61, a memory 62, and a program or an instruction stored in the memory 62 and executable on the processor 61. For example, when the communication device 60 is a network-side device, the program or the instruction, when executed by the processor 61, implements the respective processes of the above-described message transmission method embodiment, and the same technical effects can be achieved. When the communication device 60 is a terminal, the program or the instruction when executed by the processor 61 implements the respective processes of the above-mentioned message receiving method embodiment, and the same technical effects can be achieved, and for avoiding repetition, a detailed description is omitted herein.

Fig. 7 is a schematic hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 700 includes, but is not limited to: radio frequency unit 701, network module 702, audio output unit 703, input unit 704, sensor 705, display unit 706, user input unit 707, interface unit 708, memory 709, and processor 710.

Those skilled in the art will appreciate that the terminal 700 may further include a power source (e.g., a battery) for powering the various components, and that the power source may be logically coupled to the processor 710 via a power management system so as to perform functions such as managing charging, discharging, and power consumption via the power management system. The terminal structure shown in fig. 7 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 704 may include a graphics processor (Graphics Processing Unit, GPU) 7041 and a microphone 7042, with the graphics processor 7041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071 is also referred to as a touch screen. The touch panel 7071 may include two parts, a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In this embodiment, after receiving downlink data from a network side device, the radio frequency unit 701 processes the downlink data with the processor 710; in addition, the uplink data is sent to the network side equipment. Typically, the radio unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 709 may be used to store software programs or instructions and various data. The memory 709 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 709 may include a high-speed random access Memory, and may also include a nonvolatile Memory, wherein the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable Programmable ROM (EPROM), an Electrically Erasable Programmable EPROM (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.

Processor 710 may include one or more processing units; alternatively, processor 710 may integrate an application processor that primarily processes operating systems, user interfaces, and applications or instructions, etc., with a modem processor that primarily processes wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 710.

The radio frequency unit 701 is configured to receive an RTS message sent by a network side device, where the RTS message includes first information, and the first information is used to determine a terminal that needs to feed back a CTS message.

The terminal 700 provided in this embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 3, and achieve the same technical effects, and for avoiding repetition, a detailed description is omitted herein.

Optionally, the embodiment of the application also provides network side equipment. As shown in fig. 8, the network side device 80 includes: an antenna 81, a radio frequency device 82, a baseband device 83. The antenna 81 is connected to a radio frequency device 82. In the uplink direction, the radio frequency device 82 receives information via the antenna 81, and transmits the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes information to be transmitted, and transmits the processed information to the radio frequency device 82, and the radio frequency device 82 processes the received information and transmits the processed information through the antenna 81.

The above-described band processing means may be located in the baseband means 83, and the method performed by the network-side device in the above embodiment may be implemented in the baseband means 83, and the baseband means 83 includes the processor 84 and the memory 85.

The baseband apparatus 83 may, for example, include at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 8, where one chip, for example, a processor 84, is connected to the memory 85, so as to call a program in the memory 85, and perform the network side device operation shown in the above method embodiment.

The baseband device 83 may also include a network interface 86 for interacting with the radio frequency device 82, such as a common public radio interface (common public radio interface, CPRI for short).

Specifically, the network side device in the embodiment of the application further includes: instructions or programs stored in the memory 85 and executable on the processor 84, the processor 84 invokes the instructions or programs in the memory 85 to perform the method performed by the modules shown in fig. 2 and achieve the same technical effects, and are not repeated here.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and the program or the instruction when executed by a processor implement each process of the embodiment of the method of fig. 2, or implement each process of the embodiment of the method of fig. 3, and achieve the same technical effects, so that repetition is avoided, and no further description is provided herein.

Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to run a network side device program or instruction, to implement each process of the foregoing method embodiment of fig. 2, or to implement each process of the foregoing method embodiment of fig. 3, and to achieve the same technical effect, so that repetition is avoided, and no further description is given here.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), including several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network side device, etc.) to perform the method described in the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. A method of transmitting a message, comprising:

the network equipment sends request to send RTS message;

the RTS message comprises first information, wherein the first information is used for determining a terminal needing to feed back a Clear To Send (CTS) message;

the first information comprises an index corresponding to target CTS configuration information, and the target CTS configuration information corresponds to at least one terminal needing to feed back CTS information;

wherein, before the request to send RTS message, the method further comprises:

the network side equipment transmits at least one of the following through a broadcast signal:

mapping rules between terminals and CTS configuration information.

2. The method of claim 1, wherein the first information includes an index corresponding to target terminal combination information, and wherein the target terminal combination information includes information about terminals that need to feed back CTS messages.

3. The method of claim 2, wherein prior to the sending the request to send RTS message, the method further comprises:

the network side equipment sends Radio Resource Control (RRC) configuration information to a terminal; the RRC configuration information comprises a plurality of pieces of terminal combination information, one piece of terminal combination information corresponds to one index, and the other piece of terminal combination information comprises relevant information of at least one terminal.

4. A method according to claim 3, characterized in that the relevant information of one terminal is included in one or more terminal combination information.

5. A method according to claim 3, characterized in that the information about the terminal comprises at least one of the following:

a terminal identifier;

grouping information of the terminal;

CTS sends indication information;

CTS resource indication information.

6. The method of claim 2, wherein after the sending request to send an RTS message, the method further comprises:

and the network side equipment receives the CTS message fed back by the terminal corresponding to the target terminal combination information.

7. The method of claim 1, wherein the first information comprises any one of:

8. The method of claim 7, wherein after the sending request to send an RTS message, the method further comprises:

the network side equipment receives a CTS message fed back by a terminal in a target terminal group under the condition that the first information comprises the group identification of the target terminal group needing to feed back the CTS message;

or alternatively, the process may be performed,

the network side equipment receives a CTS message which is indicated by a first bitmap and needs to be fed back by a terminal in a terminal group of the CTS message when the first information comprises the first bitmap;

or alternatively, the process may be performed,

the network side equipment receives a CTS message fed back by a first terminal in a terminal group under the condition that the first information comprises a group identifier of the terminal group and a second bitmap; wherein the second bitmap indicates that the first terminal needs to feed back a CTS message;

or alternatively, the process may be performed,

the network side equipment receives a CTS message fed back by the second terminal under the condition that the first information comprises a third bitmap; wherein the third bitmap indicates that the second terminal needs to feed back a CTS message.

9. The method of claim 1, wherein one terminal corresponds to one or more CTS configuration information.

10. The method of claim 1, wherein after the sending request to send an RTS message, the method further comprises:

and the network side equipment receives the CTS message fed back by the terminal corresponding to the target CTS configuration information according to the target CTS configuration information.

11. The method of claim 1, wherein the CTS configuration information includes at least one of:

CTS transmission indication information of at least one terminal;

CTS resource indication information of at least one terminal.

12. The method of claim 1, wherein the first information comprises a group identification of a target terminal group for which a CTS message needs to be fed back.

13. The method according to claim 7 or 12, wherein before the sending the request to send RTS message, the method further comprises:

the network side equipment transmits packet information to the terminal through at least one of the following:

the grouping information is used for indicating a plurality of divided terminal groups, and each terminal group corresponds to one group identifier.

14. The method of claim 12, wherein prior to the sending the request to send RTS message, the method further comprises:

The network side equipment respectively sends CTS configuration information to different terminal groups; wherein, a terminal group corresponds to a CTS configuration information.

15. The method of claim 14, wherein after the sending the request to send RTS message, the method further comprises:

and the network side equipment receives the CTS message sent by the terminal in the target terminal group according to the CTS configuration information corresponding to the target terminal group.

16. A message receiving method, comprising:

the terminal receives an RTS message sent by network side equipment;

the RTS message comprises first information, wherein the first information is used for determining a terminal needing to feed back a CTS message;

before the network side equipment receives the RTS message sent by the network side equipment, the method further comprises the following steps:

the terminal receives at least one of the following through a broadcast signal:

mapping rules between terminals and CTS configuration information.

17. The method of claim 16, wherein the first information includes an index corresponding to target terminal combination information, and wherein the target terminal combination information includes information about terminals that need to feed back CTS messages.

18. The method of claim 17, wherein prior to receiving the RTS message sent by the network side device, the method further comprises:

the terminal receives RRC configuration information sent by the network equipment;

19. The method of claim 18, wherein the information about the terminal comprises at least one of:

a terminal identifier;

grouping information of the terminal;

CTS sends indication information;

CTS resource indication information.

20. The method of claim 16, wherein the first information comprises any one of:

21. The method of claim 16, wherein the first information comprises a group identification of a target terminal group for which a CTS message needs to be fed back.

22. The method according to claim 20 or 21, wherein before receiving the RTS message sent by the network side device, the method further comprises:

the terminal receives packet information sent by the network side equipment through at least one of the following steps:

RRC configuration information, broadcast signals, DCI;

23. The method of claim 21, wherein prior to receiving the RTS message sent by the network side device, the method further comprises:

and the terminal receives CTS configuration information corresponding to a terminal group where the terminal is located, wherein the CTS configuration information is sent by the network side equipment.

24. A message transmission apparatus, comprising:

A sending module, configured to send an RTS message;

the first information is an index corresponding to target CTS configuration information, and the target CTS configuration information corresponds to at least one terminal needing to feed back CTS information;

wherein, the sending module is further used for:

transmitting at least one of the following through a broadcast signal:

mapping rules between terminals and CTS configuration information.

25. The apparatus of claim 24, wherein the first information is an index corresponding to target terminal combination information, and the target terminal combination information includes information about terminals that need to feed back CTS messages.

26. The apparatus of claim 24, wherein the first information is any one of:

27. A message receiving apparatus, comprising:

wherein the fifth receiving module is further configured to:

receiving at least one of the following through a broadcast signal:

mapping rules between terminals and CTS configuration information.

28. A communication device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which when executed by the processor, implements the steps of the messaging method of any of claims 1 to 15 or the steps of the message receiving method of any of claims 16 to 23.

29. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the steps of the message sending method according to any of claims 1 to 15 or the steps of the message receiving method according to any of claims 16 to 23.