CN113973270A

CN113973270A - Message sending method, message receiving method, device and communication equipment

Info

Publication number: CN113973270A
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: 2022-01-25
Anticipated expiration: 2040-07-23
Also published as: CN113973270B; WO2022017466A1

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 comprises first information, and the first information is used for determining a terminal needing to feed back a CTS message. Therefore, the terminal which needs to feed back the CTS message can be indicated when the RTS message is sent, so that the network side equipment and the terminal can accurately complete the handshake process.

Description

Message sending method, message receiving method, device 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 frequency spectrum, for example, an unlicensed band (unlicensed band), a Request-To-Send (RTS) mechanism may be used. A handshake mechanism may also be introduced in a New Radio (NR) for channel access, and a network side device such as a base station/TRP may simultaneously send an RTS message to a plurality of terminals. However, in this case, the handshake procedure in this case of base station/TRP has not been determined so far.

Disclosure of Invention

Embodiments of the present application provide a message sending method, a message receiving method, an apparatus, and a communication device, so as to solve a problem how to complete a handshake process when a network side device can send an RTS message to multiple terminals at the same time.

In order to solve the technical problem, the present application is implemented as follows:

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

network side equipment sends RTS information; the RTS message comprises first information, and the first information is used for determining a terminal needing to feed back a CTS message.

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

a terminal receives an RTS message sent by network side equipment; the RTS message comprises first information, and the first information is used for determining a terminal needing 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 comprises first information, and the first information is used for determining a terminal needing to feed back a CTS message.

In a fourth aspect, a message receiving apparatus is provided, which is applied to a terminal, and includes:

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

the RTS message comprises first information, and the first information is used for determining a terminal needing 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 instructions stored on the memory and executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method according to the first aspect or implementing the steps of the method according to the second aspect.

In a sixth aspect, there is provided a readable storage medium on which a program or instructions are stored, which program or instructions, 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 being coupled to the processor, the processor being configured to execute a program 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 this embodiment, a network side device may send an RTS message, 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. Therefore, under the condition that the network side equipment can simultaneously send the RTS message to a plurality of terminals, the terminals which need to feed back the CTS message can be indicated when the RTS message is sent, so that the network side equipment and the terminals can accurately finish the handshake process.

Drawings

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

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

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

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

fig. 5 is a schematic structural diagram of a message receiving apparatus 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 technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used are interchangeable under appropriate circumstances such that embodiments of the application can be practiced in sequences other than those illustrated or described herein, and the terms "first" and "second" used herein generally do not denote any order, nor do they denote any order, for example, the first object may be one or more. In addition, "and/or" in the specification and the claims means at least one of connected objects, and a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described techniques can be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications, such as 6 th generation (6 th generation)^thGeneration, 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-side device 12. Wherein, the terminal 11 may also be called as a terminal Device or a User Equipment (UE), the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, an ultra-Mobile Personal Computer (UMPC), a 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 other terminal side devices, the Wearable Device includes: bracelets, earphones, glasses and the like. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network-side device 12 may be a Base Station/TRP or a core network, wherein the Base Station/TRP may be referred to as a node B, an evolved node B, an access Point, a Base Transceiver Station (BTS), a radio Base Station/TRP, a radio Transceiver, a Basic Service Set (BSS), an 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 (TRP), or some other suitable terminology in the field, as long as the same technical effect is achieved, 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 understanding of the embodiments of the present application, the following is first explained.

In future communication systems, a shared spectrum such as an unlicensed band (unlicensed band) may be used as a supplement to a licensed band (licensed band) to help an operator expand services. In order to maintain compliance with NR deployment and maximize NR-based unlicensed access as much as possible, unlicensed frequency bands may operate in the 5GHz, 37GHz, and 60GHz frequency bands. Since the unlicensed band is shared by multiple technologies (RATs), such as Wi-Fi, radar, LTE-based Licensed-Assisted Access (LTE-LAA), etc., in some countries or regions, the unlicensed band must be used according to regulatory rules to ensure that all devices can fairly share the resources, such as Listen Before Talk (LBT), Maximum Channel Occupancy Time (MCOT), etc. When a transmission node needs to send information, it is required to perform LBT on a specified wireless channel first, and 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 (idle), and then transmission can be started. Otherwise, the channel is considered to be busy, and the transmitting node cannot transmit. The transmission node may be a base station/TRP, a UE, a Wi-Fi Access Point (AP), etc. After the transmission node starts transmission, the occupied channel time cannot exceed the MCOT.

LBT can solve a part of the channel interference problem, but because LBT is initiated by the originating node, it cannot solve the hidden node problem of the receiving node. For example, the gNB1 performs LBT before sending data and senses that the channel is empty, so the gNB1 sends data to the UE1 and the UE1 receives data. At this time, the UE2 has data to send, and performs LBT, because the gNB1 is far away and the UE1 is in a receiving state, the UE2 detects that the channel is empty and starts sending data. However, since UE2 and UE1 are close together, UE1 may receive information transmitted by UE2, where UE1 may experience interference when receiving data for gNB 1. UE2 is a hidden node of UE 1.

In order to avoid the problem of hidden nodes, for the transmission of the unlicensed frequency band, a handshake mechanism of RTS/CTS, or a transmission request/transmission confirmation mechanism may be introduced. For example, in an NR system, a handshake mechanism may be introduced for 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. Thus, how to indicate the terminal needing to feed back the CTS message in the RTS 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 confirmation to send (confirm to send) message, or referred to as a confirmation 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 through 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, and as shown in fig. 2, the method includes the following steps:

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

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

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

In the embodiment of the present application, 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 target terminal combination information, where the target terminal combination information includes related information of a terminal that needs to feed back the CTS message, for example, the target terminal combination information may include related information of one or more terminals that need to feed back the CTS message. Thus, by means of the index, it is possible to indicate the relevant information of the terminal that needs to feed back the CTS message.

In this embodiment, a plurality of terminal combination information may be configured through Radio Resource Control (RRC) configuration information, where each terminal combination information may include related information of 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, which 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 multiple pieces of terminal combination information, one piece of terminal combination information corresponds to one index, and one piece of terminal combination information may include related information of at least one terminal.

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

Optionally, the related 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 a plurality of divided terminal combination information, and each terminal combination information corresponds to a group identification group ID;

the CTS sends the indication information; for example, the CTS transmission indication information may include, but is not limited to, a CTS message format, Spatial information (Spatial info), and the like;

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

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 a handshake process.

In one embodiment, the RTS message sent by the gNB carries an index (index) corresponding to the UE combination information. 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) the group identity, e.g. group ID, of the target terminal group (UE group) that needs to feed back the CTS message.

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

Note that the target terminal group is a terminal group that needs to feed back the CTS message.

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

2) A first bitmap (bitmap). Wherein 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 the CTS message, and a bit value of 0 indicates that all terminals in the corresponding terminal group do not need to feed back the CTS message.

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

3) A group identification of the group of terminals, and a second bitmap. Wherein the second bitmap is used for indicating whether the terminals in the terminal group need to feed back the CTS message. In the second bitmap, each bit corresponds to a terminal in the group of terminals. 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, under the condition that the first information includes the group identifier of the target terminal group and the second bitmap, after the network side device sends the RTS message, the network side device may receive a CTS message fed back by the first terminal in the target terminal group, 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 group ID 2 and bitmap 2, all terminals in the terminal group corresponding to the group ID 2 and indicated by the bitmap 2 that need to feed back the CTS message after receiving the RTS message.

Note that, in this 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 terminal can only belong to one terminal group when grouped.

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

Optionally, in form 2, the network side device may send the packet information to the terminal through at least one of the following: RRC configuration Information, a broadcast signal, and Downlink Control Information (DCI). The grouping information is used for indicating a plurality of divided terminal groups, and each terminal group corresponds to a 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, and the target CTS configuration information corresponds 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, it is possible to indicate the relevant information of the terminal that needs to feed back the CTS message.

In this embodiment, 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 the 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 the CTS configuration information.

Optionally, 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 of at least one terminal sends indication information; for example, the CTS transmission indication information may include, but is not limited to, a CTS message format, Spatial information (Spatial info), and the like;

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

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

In one embodiment, the RTS message sent by the gNB includes an index (index) corresponding to certain CTS configuration information. After receiving the RTS message, all terminals mapped to 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 identifier, such as a group ID, of the target terminal group that needs to feed back the CTS message. Note that the target terminal group is a terminal group that needs to feed back the CTS message.

Optionally, in the form 4, the network side device may send the packet information to the terminal through at least one of the following: RRC configuration Information, a broadcast signal, and Downlink Control Information (DCI). The grouping information is used for indicating a plurality of divided terminal groups, and each terminal group corresponds to a 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 perform CTS information configuration on the different terminal groups. Each terminal group corresponds to one piece of 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 the 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 the CTS configuration information corresponding to the group ID.

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

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

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

Optionally, the first information is an index corresponding to target terminal combination information, and the target terminal combination information includes related information of a 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 RRC configuration information sent by the network side device;

the RRC configuration information includes a plurality of terminal combination information, one terminal combination information corresponds to one index, and one terminal combination information includes related information of at least one terminal.

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

a terminal identification;

grouping information of the terminal;

the CTS sends the indication information;

CTS resource indication information.

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

group identification of a target terminal group needing to feed back a CTS message;

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

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

Optionally, the first information is an index corresponding to target CTS configuration information, and 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:

and mapping rules between the terminal and the CTS configuration information.

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

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

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, which is sent by the network side device and corresponds to the terminal group where the terminal is located.

It should be noted that the transmission involved in the above-mentioned message sending method and receiving method is downlink transmission, but it is understood that the corresponding handshake process can also be applied to sidelink transmission and downlink transmission, which are respectively described below.

1> sidelink transmission

In the case of the side link transmission, the third terminal may send an RTS message, where the RTS message includes first information 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 a CTS message, or may be used to indicate a terminal that does not need to feed back a CTS message.

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

Form 1:

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

In this embodiment, the network side device may configure a plurality of terminal combination information through RRC configuration information, where one terminal combination information may include related information of 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, which 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 multiple pieces of terminal combination information, one piece of terminal combination information corresponds to one index, and one piece of terminal combination information may include related information of at least one terminal.

terminal identification, such as UE ID;

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

Form 2:

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

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

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

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

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

Form 3:

In this embodiment, 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 and frequency domain resource indication information of CTS, which 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 the terminal 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:

Optionally, the network side device may send CTS configuration information to different terminal groups, respectively, so as to perform CTS information configuration on different terminal groups. Each terminal group corresponds to one piece of CTS configuration information.

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

2> uplink transmission

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

In the following, the network side device is taken as a base station/TRP for example, but not limited thereto.

Form 1:

in this form 1, the first information includes an index corresponding to target base station/TRP combination information, and the target base station/TRP combination information includes information related to base stations/TRPs that need to feed back the CTS message. Thus, by means of the index, information about the base station/TRP that needs to feed back the CTS message can be indicated.

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

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

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

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

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

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

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 a handshake process.

Form 2:

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

1) group identification, such as group ID, of a target base station/TRP group (gNB/TRP group) that needs to feed back the CTS message.

Optionally, in a case that the first information includes a group identity 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 station/TRP in the target base station/TRP group after sending the RTS message.

Note that the target base station/TRP set is a base station/TRP set that needs to feed back the CTS message.

2) A first bitmap (bitmap). Wherein the first bitmap is used for indicating 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 the 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 the 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 fed back by a base station/TRP in the base station/TRP group that needs to feed back the CTS message and is indicated by the first bitmap.

3) A group identity of the base station/TRP group, and a second bitmap. Wherein the second bitmap is used for indicating whether base stations/TRPs in the base station/TRP group need to feed back CTS messages. In the second bit map, each bit corresponds to a base station/TRP in the set 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 a case that the first information is a group identifier of the target base station/TRP group and a second bitmap, after sending the RTS message, the fourth terminal may receive a CTS message fed back by a first base station/TRP in the target base station/TRP group, where the second bitmap indicates that the first base station/TRP needs to feed back the CTS message.

4) A third bitmap. Wherein the third bitmap is used for indicating whether the base station/TRP needs to feed back the CTS message. At this time, the base stations/TRPs are not grouped, and all base stations/TRPs are indicated by bitmap. In the third bitmap, each bit corresponds to a 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 a case that the first information is a third bitmap, the fourth terminal may receive, after sending the RTS message, a CTS message fed back by the second base station/TRP, 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, where the target CTS configuration information corresponds 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, by means of the index, information about the base station/TRP that needs to feed back the CTS message can be indicated.

Optionally, 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 sending indication information of at least one base station/TRP; for example, the CTS transmission indication information may include, but is not limited to, a CTS message format, Spatial information (Spatial info), and the like;

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

Optionally, after sending the RTS message, the fourth terminal may receive the base station/TRP corresponding to the target CTS configuration information, and complete a 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 identity, such as a group ID, of the target base station/TRP group to which the CTS message needs to be fed back. Note that the target base station/TRP set is a base station/TRP set that needs to feed back the CTS message.

Optionally, after sending the RTS message, the fourth terminal may receive a base station/TRP in the target base station/TRP group, and send a CTS message according to the CTS configuration information corresponding to 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 main body may be a message sending apparatus, or a control module in the message sending apparatus for executing the message sending method. The message sending device provided in the embodiment of the present application will be described by taking an example in which the message sending device executes a message sending method.

Referring to fig. 4, fig. 4 is a schematic structural diagram of a message sending apparatus provided in an embodiment of the present application, and 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, and the target terminal combination information includes related information of at least one 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 identification;

grouping information of the terminal;

the CTS sends the indication information;

CTS resource indication information.

Optionally, the message sending apparatus 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:

Optionally, the message sending apparatus 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 a CTS message;

or, receiving a CTS message fed back by a terminal in a terminal group indicated by a first bitmap and needing to feed back the CTS message, when the first information includes the first bitmap;

or, receiving a CTS message fed back by a first terminal in the terminal group, under the condition that the first information includes 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, receiving a CTS message fed back by the second terminal, in case that the first information includes the third bitmap; 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, by a broadcast signal, at least one of:

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

and mapping rules between the terminal and the CTS configuration information.

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

Optionally, the message sending apparatus 40 further includes:

and the third receiving module is used for receiving the terminal corresponding to the target CTS configuration information and feeding back the CTS message according to the target CTS configuration information.

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

CTS of at least one terminal sends indication information;

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 a 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:

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

Optionally, the message sending apparatus 40 further includes:

and the fourth receiving module is used for receiving the CTS message sent by the terminals in the target terminal group according to the CTS configuration information corresponding to the target terminal group.

The message sending apparatus 40 provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 2, and achieve the same technical effect, and for avoiding repetition, details are not described here again.

It should be noted that, in the message receiving method provided in the embodiment of the present application, the execution main 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 apparatus is taken as an example to execute a message receiving method, and the message receiving apparatus 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 according to an embodiment of the present application, which is applied to a terminal, and as shown in fig. 5, the message receiving apparatus 50 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 target terminal combination information, where the target terminal combination information includes related information of at least one terminal that needs to feed back a CTS message.

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

receiving RRC configuration information sent by the network side equipment;

a terminal identification;

grouping information of the terminal;

the CTS sends the indication information;

CTS resource indication information.

Optionally, the first information includes any one of:

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

receiving, via a broadcast signal, at least one of:

and mapping rules between the terminal and the 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 items:

RRC configuration information, broadcast signals, DCI;

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

and receiving CTS configuration information which is sent by the network side equipment and corresponds to a terminal group where the terminal is located.

The message receiving device in the embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal. The device can be a mobile terminal or a non-mobile terminal. By way of example, the mobile terminal may include, but is not limited to, the above-listed type of terminal 11, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine, a kiosk, or the like, and the embodiments of the present application are not limited in particular.

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 (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present application are not limited specifically.

The message receiving apparatus 50 provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 3, and achieve the same technical effect, and for avoiding repetition, details are not described here again.

Optionally, as shown in fig. 6, an embodiment of the present application further provides a communication device 60, which includes a processor 61, a memory 62, and a program or instructions stored on 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 instructions are executed by the processor 61 to implement the processes of the message sending method embodiment, and the same technical effects can be achieved. When the communication device 60 is a terminal, the program or the instruction is executed by the processor 61 to implement the processes of the above-mentioned message receiving method embodiment, and the same technical effect can be achieved, and for avoiding repetition, the details are not described here again.

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

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

Those skilled in the art will appreciate that the terminal 700 may further include a power supply (e.g., a battery) for supplying power to various components, which may be logically connected to the processor 710 via a power management system, so as to manage charging, discharging, and power consumption management functions 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 those shown, or combine some components, or have a different arrangement of components, and will not be described again here.

It should be understood that in the embodiment of the present application, the input Unit 704 may include a Graphics Processing Unit (GPU) 7041 and a microphone 7042, and the Graphics Processing Unit 7041 processes image data of still pictures or videos 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 of 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, and a joystick, which are not described in detail herein.

In the embodiment of the present application, the radio frequency unit 701 receives downlink data from a network side device and then processes the downlink data in the processor 710; in addition, the uplink data is sent to the network side equipment. In general, radio frequency 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 as well as 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, an application program or instruction (such as a sound playing function, an image playing function, etc.) required by at least one function, and the like. In addition, the Memory 709 may include a high-speed random access Memory and a nonvolatile Memory, where the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (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 handles primarily the operating system, user interface, and application programs or instructions, etc. and a modem processor that handles primarily wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into 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 the embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 3, and achieve the same technical effect, and for avoiding repetition, the details are not described here again.

Optionally, an embodiment of the present application further provides a network side device. As shown in fig. 8, the network-side device 80 includes: antenna 81, radio frequency device 82, baseband device 83. The antenna 81 is connected to a radio frequency device 82. In the uplink direction, the rf device 82 receives information via the antenna 81 and sends 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 information to the rf device 82, and the rf device 82 processes the received information and transmits the processed information through the antenna 81.

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

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

The baseband device 83 may further include a network interface 86 for exchanging information with the radio frequency device 82, such as a Common Public Radio Interface (CPRI).

Specifically, the network side device in the embodiment of the present application further includes: the instructions or programs stored in the memory 85 and executable on the processor 84, and the processor 84 calls the instructions or programs in the memory 85 to execute the method executed by each module shown in fig. 2, and achieve the same technical effect, and are not described herein in detail to avoid repetition.

An 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 when the program or the instruction is executed by a processor, the program or the instruction implements each process of the embodiment of the method in fig. 2 or implements each process of the embodiment of the method in fig. 3, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

Wherein, the processor is the 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 (RAM), a magnetic disk or an optical disk, and so on.

An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a network-side device program or an instruction to implement each process in the embodiment of the method in fig. 2 or each process in the embodiment of the method in fig. 3, and may achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

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

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 an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network-side device) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A method for sending a message, comprising:

network side equipment sends a request to send RTS message;

the RTS message comprises first information, and the first information is used for determining a terminal which needs to feed back a clear-to-send (CTS) message.

2. The method of claim 1, wherein the first information comprises an index corresponding to target terminal combination information, and the target terminal combination information comprises 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 includes a plurality of terminal combination information, one terminal combination information corresponds to one index, and one terminal combination information includes related information of at least one terminal.

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

5. The method according to claim 3, wherein the related information of the terminal comprises at least one of the following:

a terminal identification;

grouping information of the terminal;

the CTS sends the indication information;

CTS resource indication information.

6. The method of claim 2, wherein after the sending the request to send 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 the request to send 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 a group identifier of the target terminal group needing to feed back the CTS message;

or,

the network side equipment receives a CTS message fed back by a terminal in a terminal group which is indicated by a first bitmap and needs to feed back the CTS message under the condition that the first information comprises the first bitmap;

or,

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,

the network side equipment receives a CTS message fed back by a 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 the first information includes an index corresponding to target CTS configuration information, and the target CTS configuration information corresponds to at least one terminal that needs to feed back a CTS message.

10. The method of claim 9, wherein prior to the sending the request to send RTS message, the method further comprises:

transmitting, by a broadcast signal, at least one of:

and mapping rules between the terminal and the CTS configuration information.

11. The method of claim 10, wherein one terminal corresponds to one or more CTS configuration information.

12. The method of claim 9, wherein after the sending the request to send RTS message, the method further comprises:

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

13. The method of claim 10, wherein the CTS configuration information comprises at least one of:

CTS of at least one terminal sends indication information;

CTS resource indication information of at least one terminal.

14. The method of claim 1, wherein the first information comprises a group identifier of a group of targeted terminals that need to feed back a CTS message.

15. The method according to claim 7 or 14, wherein before the sending the request to send RTS message, the method further comprises:

the network side equipment sends grouping information to the terminal through at least one of the following items:

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

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

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

17. The method of claim 16, 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.

18. A message receiving method, comprising:

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

19. The method of claim 18, wherein the first information includes 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.

20. The method of claim 19, wherein before receiving the RTS message sent by the network-side device, the method further comprises:

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

21. The method according to claim 20, wherein the information related to the terminal comprises at least one of:

a terminal identification;

grouping information of the terminal;

the CTS sends the indication information;

CTS resource indication information.

22. The method of claim 18, wherein the first information comprises any one of:

23. The method of claim 18, wherein the first information includes an index corresponding to target CTS configuration information, and wherein the target CTS configuration information corresponds to at least one terminal that needs to feed back a CTS message.

24. The method according to claim 23, wherein before receiving the RTS message sent by the network side device, the method further comprises:

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

and mapping rules between the terminal and the CTS configuration information.

25. The method of claim 18, wherein the first information comprises a group identity of a group of targeted terminals that need to feed back a CTS message.

26. The method according to claim 22 or 25, wherein before receiving the RTS message sent by the network side device, the method further comprises:

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

RRC configuration information, broadcast signals, DCI;

27. The method of claim 25, wherein before receiving the RTS message sent by the network-side device, the method further comprises:

and the terminal receives CTS configuration information which is sent by the network side equipment and corresponds to a terminal group where the terminal is located.

28. A message transmission apparatus, comprising:

a sending module, configured to send an RTS message;

29. The apparatus of claim 28, wherein the first information is an index corresponding to target terminal combination information, and the target terminal combination information includes related information of a terminal that needs to feed back a CTS message.

30. The apparatus of claim 28, wherein the first information is any one of:

31. The apparatus of claim 28, wherein the first information is an index corresponding to target CTS configuration information, and the target CTS configuration information corresponds to at least one terminal that needs to feed back a CTS message.

32. A message receiving apparatus, comprising:

33. A communications device comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the message sending method of any one of claims 1 to 17 or implementing the steps of the message receiving method of any one of claims 18 to 27.

34. A readable storage medium, on which a program or instructions are stored, which when executed by a processor, carry out the steps of the message sending method according to any one of claims 1 to 17, or carry out the steps of the message receiving method according to any one of claims 18 to 27.