WO2022017466A1 - 消息发送、消息接收方法、装置及通信设备 - Google Patents

消息发送、消息接收方法、装置及通信设备 Download PDF

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Publication number
WO2022017466A1
WO2022017466A1 PCT/CN2021/107872 CN2021107872W WO2022017466A1 WO 2022017466 A1 WO2022017466 A1 WO 2022017466A1 CN 2021107872 W CN2021107872 W CN 2021107872W WO 2022017466 A1 WO2022017466 A1 WO 2022017466A1
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Prior art keywords
terminal
cts
information
message
feed back
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English (en)
French (fr)
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姜蕾
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/12Messaging; Mailboxes; Announcements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery

Definitions

  • the present application belongs to the field of communication technologies, and specifically relates to a message sending and message receiving method, device and communication equipment.
  • a multiple request-to-send (Request-To-Send, RTS) mechanism may be used.
  • RTS request-to-send
  • a handshake mechanism can also be introduced into a new air interface (New Radio, NR) for channel access, and a network-side device such as a base station/TRP can send RTS messages to multiple terminals at the same time.
  • NR New Radio
  • the purpose of the embodiments of the present application is to provide a message sending and message receiving method, apparatus and communication device, so as to solve the problem of how to complete the handshake process when the network side device can send RTS messages to multiple terminals at the same time.
  • a method for sending a message including:
  • the network side device sends an RTS message, wherein the RTS message includes first information, and the first information is used to determine a terminal that needs to feed back the CTS message.
  • a method for receiving a message including:
  • the terminal receives the RTS message sent by the network side device; wherein, the RTS message includes first information, and the first information is used to determine the terminal that needs to feed back the CTS message.
  • a message sending apparatus applied to a network side device, including:
  • a sending module configured to send an RTS message, wherein the RTS message includes first information, and the first information is used to determine a terminal that needs to feed back the CTS message.
  • a message receiving apparatus applied to a terminal, including:
  • a fifth receiving module configured to receive the RTS message sent by the network side device
  • the RTS message includes first information, and the first information is used to determine the terminal that needs to feed back the CTS message.
  • 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 being executed by the processor When executed, the steps of the method as described in the first aspect are realized, or the steps of the method as described in the second aspect are realized.
  • a readable storage medium on which a program or an instruction is stored, and when the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps as described in the first aspect are implemented.
  • the steps of the method of the second aspect are provided, on which a program or an instruction is stored, and when the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps as described in the first aspect are implemented.
  • a chip in a seventh aspect, includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the method according to the first aspect steps, or steps of implementing the method according to the second aspect.
  • 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 the CTS message. Therefore, in the case that the network side device can send RTS messages to multiple terminals at the same time, the terminal that needs to feed back the CTS message can be indicated when sending the RTS message, so that the network side device and the terminal can accurately complete the handshake process.
  • FIG. 1 is a block diagram of a wireless communication system provided by an embodiment of the present application.
  • FIG. 3 is a flowchart of a message receiving method provided by an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a message sending apparatus provided by an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a message receiving apparatus provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a terminal provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a network side device provided by an embodiment of the present application.
  • first, second and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and "first”, “second” distinguishes Usually it is a class, and the number of objects is not limited.
  • the first object may be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution-Advanced
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies.
  • NR New Radio
  • 6G sixth generation
  • FIG. 1 shows a block diagram of a wireless communication system to which the embodiments of the present application can be applied.
  • the wireless communication system includes a terminal 11 and a network-side device 12 .
  • the terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital computer Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device (Vehicle User Equipment, VUE), pedestrian terminal (Pedestrian User Equipment, PUE) and other terminal-side devices, wearable devices include: bracelets, headphones, glasses, etc.
  • 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, Radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi node, Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station/TRP is not limited to specific technical vocabulary, it should be noted that, In the embodiments of the present application, only the base station/TRP in the NR system is used as an example, but the specific type of the base station/TRP is not limited.
  • unlicensed band In a communication system, shared spectrum, such as unlicensed band, can be used as a supplement to licensed band to help operators expand services.
  • unlicensed bands can operate in the 5GHz, 37GHz, and 60GHz bands.
  • the unlicensed frequency band is shared by a variety of technologies (Radio Access Technology, RAT), such as Wi-Fi, radar, LTE-based Licensed-Assisted Access (LTE-LAA), etc. , so in some countries or regions, the use of unlicensed frequency bands must comply with regulatory regulations to ensure that all devices can share the resources fairly, such as listening before transmission (Listen Before Talk, LBT), maximum channel occupation time (Maximum occupancy time).
  • RAT Radio Access Technology
  • LBT LTE-based Licensed-Assisted Access
  • the transmission node When the transmission node needs to send information, it is required to perform LBT on the designated wireless channel first, and perform energy detection (Energy Detection, ED) on the surrounding wireless transmission environment. When the detected energy is lower than a certain threshold, the channel is judged to be idle. (idle), the transmission can be started only at this time. On the contrary, the channel is considered to be busy, and the transmission node cannot send.
  • the transmission node may be a base station/TRP, a UE, a Wi-Fi access point (Access Point, AP), and 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 because LBT is initiated by the originating node, it cannot solve the hidden node problem of the receiving node.
  • gNB1 performs LBT before sending data, and hears that the channel is empty, so gNB1 sends data to UE1, and UE1 receives data.
  • UE2 has data to send and performs LBT.
  • gNB1 is far away, UE1 is in the receiving state, so UE2 detects that the channel is empty and starts to send data.
  • UE2 and UE1 are very close, UE1 can receive the information sent by UE2. At this time, UE1 will suffer interference when receiving data from gNB1.
  • UE2 is the hidden node of UE1.
  • the RTS/CTS handshake mechanism or the transmission request/transmission confirmation mechanism can be introduced for the transmission of unlicensed frequency bands.
  • a handshake mechanism can be introduced for channel access, and a network-side device such as a base station/TRP can send RTS messages to multiple terminals at the same time. In this way, how to indicate the terminal that needs to feed back the CTS message in the RTS message in the NR system is an urgent problem to be solved.
  • the CTS message may also be referred to as a confirm to send message, or a confirm to send message.
  • FIG. 2 is a flowchart of a message sending method provided by an embodiment of the present application. The method is applied to a network side device. As shown in FIG. 2, the method includes the following steps:
  • Step 21 The network side device sends an RTS message.
  • the RTS message includes first information, where the first information is used to determine a terminal that needs to feed back the CTS message.
  • the first information can be used to indicate a terminal that needs to feed back a CTS message, or can be used to indicate a terminal that does not need to feed back a CTS message.
  • the terminal that needs to feed back the CTS message can be indicated when sending the RTS message, so that the network side device can send the RTS message.
  • the terminal that needs to feed back the CTS message can be indicated when sending the RTS message, so that the network side device can send the RTS message.
  • Complete the handshake process with the terminal accurately For example, under the multi-RTS (multi-RTS) mechanism, the network side device and at least one terminal can accurately complete the handshake process.
  • multi-RTS multi-RTS
  • the above-mentioned first information can be selected in various forms, which are respectively described as follows.
  • the first information includes an index corresponding to the target terminal combination information
  • the target terminal combination information includes relevant information of the terminal that needs to feed back the CTS message.
  • the target terminal combination information may include one or more terminals that need to feed back the CTS message. information about the terminal. In this way, with the help of the index, the relevant information of the terminal that needs to feed back the CTS message can be indicated.
  • multiple terminal combination information may be configured through Radio Resource Control (Radio Resource Control, RRC) configuration information, where each terminal combination information may include related information of at least one terminal.
  • RRC Radio Resource Control
  • the related information of one terminal may be contained in different terminal combination information.
  • 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.
  • the network side device may send RRC configuration information to the terminal, where the RRC configuration information includes multiple terminal combination information, one terminal combination information corresponds to one index, and one terminal combination information may include at least one terminal.
  • the RRC configuration information includes multiple terminal combination information, one terminal combination information corresponds to one index, and one terminal combination information may include at least one terminal.
  • the related information of one terminal may be included in one or more terminal combination information.
  • the relevant information of the above-mentioned terminal may include at least one of the following:
  • Terminal identification such as UE ID
  • the grouping information of the terminal wherein, the grouping information is used to indicate a plurality of divided terminal combination information, and each terminal combination information corresponds to a group identification group ID;
  • the CTS sending indication information may include but not limited to CTS message format, spatial information (Spatial info), etc.;
  • the CTS resource indication information includes time domain and frequency domain resource indication information of CTS, which may include but not limited to CTS message sending time, PUCCH resource indication (PUCCH Resource Indication, PRI) and the like.
  • PUCCH resource indication PUCCH Resource Indication, PRI
  • the network side device may also receive the CTS message fed back by the terminal corresponding to the target terminal combination information, so as to complete the handshake process.
  • the RTS message sent by the gNB carries an index (index) corresponding to the UE combination information. Afterwards, after receiving the RTS message, the UE in the UE combination information will send a CTS message to the gNB as a response.
  • the first information may include any of the following:
  • the group identifier of the target terminal group (UE group) that needs to feed back the CTS message such as group ID.
  • the network side device may receive the CTS message fed back by the terminals in the target terminal group. For example, if the RTS message sent by the gNB includes group ID 1, all the terminals in the terminal group corresponding to the group ID 1 need to feed back the CTS message after receiving the RTS message.
  • the target terminal group is the terminal group that needs to feed back the CTS message.
  • the network side device may, in the case that there are terminals in a certain terminal group that need to feed back CTS messages, the number of terminals that need to feed back CTS messages may be one or more, and sends a message including the terminal group. RTS message for group identification.
  • the first bitmap is used to indicate whether the terminal group needs to feed back the CTS message.
  • 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.
  • the network side device may receive the CTS message fed back by the terminals in the terminal group that needs to feed back the CTS message indicated by the first bitmap. For example, if the RTS message sent by the gNB includes bitmap1, then all terminals in each terminal group indicated by the bitmap1 that need to feed back the CTS message need to feed back the CTS message after receiving the RTS message.
  • the second bitmap is used to indicate whether the terminals in the terminal group need to feed back the CTS message.
  • each bit corresponds to a terminal in the terminal group. For example, a bit value of 1 indicates that the corresponding terminal needs to feed back a CTS message, and a bit value of 0 indicates that the corresponding terminal does not need to feed back a CTS message.
  • the network side device can receive the CTS message fed back by the first terminal in the target terminal group, wherein The second bitmap indicates that the first terminal needs to feed back the CTS message. For example, if the RTS message sent by the gNB includes group ID 2 and bitmap 2, then 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 need to feed back the CTS message after receiving the RTS message. .
  • the RTS message may include a plurality of second bitmaps and group IDs corresponding to the plurality of second bitmaps. At this time, the terminals can only belong to one terminal group when grouped.
  • the third bitmap is used to indicate whether the terminal needs to feed back the CTS message.
  • the terminals are not grouped, and all terminals are indicated by bitmap.
  • each bit corresponds to a terminal. For example, a bit value of 1 indicates that the corresponding terminal needs to feed back a CTS message, and a bit value of 0 indicates that the corresponding terminal does not need to feed back a CTS message.
  • the network-side device may receive the CTS message fed back by the second terminal, where the third bitmap indicates that the second terminal needs to feed back the CTS message.
  • 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 need to feed back the CTS message after receiving the RTS message.
  • the network side device may send grouping information to the terminal through at least one of the following: RRC configuration information, broadcast signal, downlink control information (Downlink Control Information, DCI).
  • the grouping information is used to indicate multiple divided terminal groups, and each terminal group corresponds to a group identifier. Each terminal can belong to one or more terminal groups.
  • the first information includes an index corresponding to the target CTS configuration information, where 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. In this way, with the help of the index, the relevant information of the terminal that needs to feed back the CTS message can be indicated.
  • the network-side device may send at least one of the following through a broadcast signal:
  • one CTS configuration information corresponds to one index
  • the mapping rule between the terminal and the CTS configuration information with the help of the mapping rule, the terminal can obtain the corresponding CTS sending indication information, CTS resource indication information, etc. through the CTS configuration information.
  • one terminal may correspond to one or more CTS configuration information.
  • One CTS configuration information may correspond to one or more terminals.
  • the CTS configuration information may include at least one of the following:
  • the CTS sending indication information may include but not limited to CTS message format, spatial information (Spatial info), etc.;
  • the CTS resource indication information includes time domain and frequency domain resource indication information of CTS, which may include but not limited to CTS message sending time, PRI, etc.
  • the network side device 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.
  • the RTS message sent by the gNB includes an index (index) corresponding to certain CTS configuration information. Afterwards, after receiving the RTS message, all terminals that have a mapping relationship with the CTS configuration information can send the CTS message according to the CTS configuration information.
  • the first information includes the group identifier of the target terminal group that needs to feed back the CTS message, such as group ID. It should be pointed out that the target terminal group is the terminal group that needs to feed back the CTS message.
  • the network side device can send grouping information to the terminal through at least one of the following: RRC configuration information, broadcast signal, downlink control information (Downlink Control Information, DCI).
  • the grouping information is used to indicate multiple divided terminal groups, and each terminal group corresponds to a group identifier.
  • Each terminal can belong to one or more terminal groups.
  • 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.
  • the network side device may receive 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 RTS message sent by the gNB includes a group ID, then all terminals in the terminal group corresponding to the group ID send the CTS message according to the CTS configuration information corresponding to the group ID after receiving the RTS message.
  • FIG. 3 is a flowchart of a method for receiving a message provided by an embodiment of the present application. The method is applied to a terminal. As shown in FIG. 3, the method includes the following steps:
  • Step 31 The terminal receives the RTS message sent by the network side device.
  • the RTS message includes first information, where the first information is used to determine a terminal that needs to feed back the CTS message.
  • 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.
  • the terminal that needs to feed back the CTS message can be indicated when sending the RTS message, so that the network side device and the terminal can accurately complete the handshake process.
  • the network-side device and at least one terminal can accurately complete the handshake process.
  • the first information is an index corresponding to target terminal combination information
  • the target terminal combination information includes relevant information of a terminal that needs to feed back a CTS message.
  • the terminal may receive the RRC configuration information sent by the network side device;
  • the RRC configuration information includes multiple terminal combination information, one terminal combination information corresponds to one index, and one terminal combination information includes at least one terminal related information.
  • the relevant information of the terminal includes at least one of the following:
  • the grouping information of the terminal is the grouping information of the terminal.
  • CTS sends indication information
  • the first information is any of the following:
  • the first picture wherein, the first picture is used to indicate whether the terminal group needs to feed back the CTS message
  • the second bitmap is used to indicate whether the terminals in the terminal group need to feed back a CTS message
  • the third bitmap wherein, the third bitmap is used to indicate whether the terminal needs to feed back the CTS message.
  • the first information is an index corresponding to target CTS configuration information
  • the target CTS configuration information corresponds to at least one terminal that needs to feed back a CTS message.
  • the terminal may receive at least one of the following through a broadcast signal:
  • one CTS configuration information corresponds to one index
  • the first information is the group identifier of the target terminal group that needs to feed back the CTS message.
  • the terminal may receive the grouping information sent by the network side device by at least one of the following:
  • RRC configuration information broadcast signal, DCI
  • the grouping information is used to indicate multiple divided terminal groups, and one terminal group corresponds to one group identifier.
  • the terminal may receive the CTS configuration information corresponding to the terminal group to which the terminal belongs, which is sent by the network side device.
  • the transmission involved in the above message sending method and receiving method is downlink transmission, but it is understandable that the corresponding handshake process can also be applied to sidelink transmission and downlink transmission, which are described below.
  • the third terminal may send an RTS message, where the RTS message includes first information, where the first information is used to determine the terminal that needs to feed back the CTS message.
  • 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.
  • the above-mentioned first information can be selected in various forms, which are respectively described as follows.
  • the first information includes an index corresponding to the target terminal combination information
  • the target terminal combination information includes relevant information of the terminal that needs to feed back the CTS message.
  • the target terminal combination information may include one or more CTS messages that need to be fed back information about the terminal. In this way, with the help of the index, relevant information of the terminal that needs to feed back the CTS message can be indicated.
  • the network side device may configure multiple terminal combination information through the 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.
  • 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.
  • the network side device may send RRC configuration information to the terminal, where the RRC configuration information includes multiple terminal combination information, one terminal combination information corresponds to one index, and one terminal combination information may include at least one terminal related information.
  • the related information of one terminal may be included in one or more terminal combination information.
  • the relevant information of the above-mentioned terminal may include at least one of the following:
  • Terminal identification such as UE ID
  • the grouping information of the terminal wherein, the grouping information is used to indicate a plurality of divided terminal combination information, and each terminal combination information corresponds to a group identification group ID;
  • the CTS sending indication information may include but not limited to CTS message format, spatial information (Spatial info), etc.;
  • the CTS resource indication information includes time domain and frequency domain resource indication information of the CTS, which may include but not limited to CTS message sending time, PSCCH resource indication, and the like.
  • the third terminal may receive the CTS message fed back by the terminal corresponding to the target terminal combination information, so as to complete the handshake process.
  • the first information may include any of the following:
  • the group identifier of the target terminal group (UE group) that needs to feed back the CTS message such as group ID.
  • the third terminal may receive the CTS message fed back by the terminals in the target terminal group.
  • the target terminal group is the terminal group that needs to feed back the CTS message.
  • the first bitmap is used to indicate whether the terminal group needs to feed back the CTS message.
  • 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.
  • the third terminal may receive the CTS message fed back by the terminals in the terminal group that needs to feed back the CTS message indicated by the first bitmap.
  • the second bitmap is used to indicate whether the terminals in the terminal group need to feed back the CTS message.
  • each bit corresponds to a terminal in the terminal group. For example, a bit value of 1 indicates that the corresponding terminal needs to feed back a CTS message, and a bit value of 0 indicates that the corresponding terminal does not need to feed back a CTS message.
  • the third terminal can receive the CTS message fed back by the first terminal in the target terminal group, wherein The second bitmap indicates that the first terminal needs to feed back the CTS message.
  • the RTS message may include a plurality of second bitmaps and group IDs corresponding to the plurality of second bitmaps. At this time, the terminals can only belong to one terminal group when grouped.
  • the third bitmap is used to indicate whether the terminal needs to feed back the CTS message.
  • the terminals are not grouped, and all terminals are indicated by bitmap.
  • each bit corresponds to a terminal. For example, a bit value of 1 indicates that the corresponding terminal needs to feed back a CTS message, and a bit value of 0 indicates that the corresponding terminal does not need to feed back a CTS message.
  • the third terminal may receive the CTS message fed back by the second terminal, where the third bitmap indicates that the second terminal needs to feed back the CTS message.
  • the network side device may send grouping information to the terminal through at least one of the following: RRC configuration information, broadcast signal, downlink control information (Downlink Control Information, DCI).
  • the grouping information is used to indicate multiple divided terminal groups, and each terminal group corresponds to a group identifier. Each terminal can belong to one or more terminal groups.
  • the first information includes an index corresponding to the target CTS configuration information, where 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. In this way, with the help of the index, the relevant information of the terminal that needs to feed back the CTS message can be indicated.
  • the network-side device may send at least one of the following through a broadcast signal:
  • one CTS configuration information corresponds to one index
  • the mapping rule between the terminal and the CTS configuration information with the help of the mapping rule, the terminal can obtain the corresponding CTS sending indication information, CTS resource indication information, etc. through the CTS configuration information.
  • one terminal may correspond to one or more CTS configuration information.
  • One CTS configuration information may correspond to one or more terminals.
  • the CTS configuration information may include at least one of the following:
  • the CTS sending indication information may include but not limited to CTS message format, spatial information (Spatial info), etc.;
  • the CTS resource indication information includes time domain and frequency domain resource indication information of CTS, which may include but not limited to CTS message sending time, PSCCH resource indication, etc.
  • 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.
  • the first information includes the group identifier of the target terminal group that needs to feed back the CTS message, such as group ID. It should be pointed out that the target terminal group is the terminal group that needs to feed back the CTS message.
  • the network-side device may send grouping information to the terminal through at least one of the following: RRC configuration information, broadcast signal, downlink control information (Downlink Control Information, DCI).
  • the grouping information is used to indicate multiple divided terminal groups, and each terminal group corresponds to a group identifier. Each terminal can belong to one or more terminal groups.
  • 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.
  • the third terminal may receive 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 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 the CTS message.
  • 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.
  • the following description takes the network side device as the base station/TRP as an example, but it is not limited to this.
  • the above-mentioned first information can be selected in various forms, which are respectively described as follows.
  • the first information includes an index corresponding to the target base station/TRP combination information
  • the target base station/TRP combination information includes information about the base station/TRP that needs to feed back the CTS message.
  • the target base station/TRP combination information may include Information about one or more base stations/TRPs that need to feed back CTS messages. In this way, with the help of the index, the relevant information of the base station/TRP that needs to feed back the CTS message can be indicated.
  • a base station/TRP may be configured with multiple base station/TRP combination information, where one base station/TRP combination information may include at least one base station or TRP related information.
  • the related information of one base station/TRP may be contained in different base station/TRP combination information.
  • 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.
  • the related information of one base station/TRP may be included in one or more base station/TRP combination information.
  • the above-mentioned information about the base station/TRP may include at least one of the following:
  • Base station/TRP identification such as gNB ID, TRP ID;
  • the grouping information of the base station/TRP wherein, the grouping information is used to indicate the divided multiple base station/TRP combination information, and each base station/TRP combination information corresponds to a group identifier group ID;
  • the CTS sending indication information may include but not limited to CTS message format, spatial information (Spatial info), etc.;
  • the CTS resource indication information includes time domain and frequency domain resource indication information of the CTS, which may include but not limited to CTS message sending time, PDCCH resource indication, and the like.
  • the fourth terminal may receive the CTS message fed back by the base station/TRP corresponding to the target base station/TRP combination information to complete the handshake process.
  • the first information may include any of the following:
  • the group identifier of the target base station/TRP group (gNB/TRP group) that needs to feed back the CTS message, such as group ID.
  • the fourth terminal can receive the base station/TRP in the target base station/TRP group after sending the RTS message. Feedback CTS message.
  • the target base station/TRP group is the base station/TRP group that needs to feed back the CTS message.
  • the first bitmap is used to indicate whether the base station/TRP group needs to feed back the CTS message.
  • 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 CTS messages, 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. CTS message.
  • the fourth terminal may receive feedback from the base station/TRP group in the base station/TRP group that needs to feed back the CTS message indicated by the first image. CTS message.
  • the second bitmap is used to indicate whether the base station/TRP in the base station/TRP group needs to feed back the CTS message.
  • each bit corresponds to one base station/TRP in the base station/TRP group. For example, a bit value of 1 indicates that the corresponding base station/TRP needs to feed back a CTS message, and a bit value of 0 indicates that the corresponding base station/TRP does not need to feed back a CTS message.
  • the fourth terminal may receive the first base station/TRP in the target base station/TRP group. Feedback CTS message, wherein the second bitmap indicates that the first base station/TRP needs to feed back the CTS message.
  • the third bitmap is used to indicate whether the base station/TRP needs to feed back the CTS message.
  • the base stations/TRPs are not grouped, and all base stations/TRPs are indicated by 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 a CTS message, and a bit value of 0 indicates that the corresponding base station/TRP does not need to feed back a CTS message.
  • the fourth terminal may receive a CTS message fed back by the second base station/TRP, where the third bitmap indicates the second base station/TRP. CTS messages need to be fed back.
  • the first information includes an index corresponding to the 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. In this way, with the help of the index, the relevant information of the base station/TRP that needs to feed back the CTS message can be indicated.
  • one base station/TRP may correspond to one or more CTS configuration information.
  • One CTS configuration information can correspond to one or more terminals.
  • the CTS configuration information may include at least one of the following:
  • the CTS transmission indication information may include but not limited to CTS message format, spatial information (Spatial info), etc.;
  • the CTS resource indication information includes time domain and frequency domain resource indication information of CTS, which may include but not limited to CTS message sending time, PDCCH resource indication, etc.
  • the fourth terminal may receive the base station/TRP corresponding to the target CTS configuration information, and feed back the CTS message according to the target CTS configuration information to complete the handshake process.
  • the first information includes the group identifier of the target base station/TRP group that needs to feed back the CTS message, such as group ID. It should be pointed out that the target base station/TRP group is the base station/TRP group that needs to feed back the CTS message.
  • the fourth terminal may receive the base station/TRP in the target base station/TRP group, and send the CTS message according to the CTS configuration information corresponding to the target base station/TRP group.
  • the execution 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 by the embodiment of the present application is described by taking a message sending device executing a message sending method as an example.
  • FIG. 4 is a schematic structural diagram of a message sending apparatus provided by an embodiment of the present application, which is applied to a network side device.
  • the message sending apparatus 40 includes:
  • the sending module 41 is used to send the RTS message
  • the RTS message includes first information, and the first information is used to determine the terminal that needs to feed back the CTS message.
  • the first information is an index corresponding to target terminal combination information
  • the target terminal combination information includes at least one terminal that needs to feed back a CTS message.
  • the sending module 41 is also used for:
  • the RRC configuration information includes multiple terminal combination information, one terminal combination information corresponds to one index, and one terminal combination information includes at least one terminal related information.
  • the relevant information of each terminal is included in one or more terminal combination information.
  • the relevant information of the terminal includes at least one of the following:
  • the grouping information of the terminal is the grouping information of the terminal.
  • CTS sends indication information
  • the message sending apparatus 40 further includes:
  • the first receiving module is configured to receive the CTS message fed back by the terminal corresponding to the target terminal combination information.
  • the first information includes any of the following:
  • the first picture wherein, the first picture is used to indicate whether the terminal group needs to feed back the CTS message
  • the second bitmap is used to indicate whether the terminals in the terminal group need to feed back a CTS message
  • the third bitmap wherein, the third bitmap is used to indicate whether the terminal needs to feed back the CTS message.
  • the message sending apparatus 40 further includes:
  • a second receiving module configured to receive the CTS message fed back by the terminals in the target terminal group when the first information includes the group identifier of the target terminal group that needs to feed back the CTS message;
  • the first information includes the first bitmap
  • the first information includes a group identifier of a terminal group and a second bitmap
  • receive a CTS message fed back by a first terminal in the terminal group wherein the second bitmap indicates the first A terminal needs to feed back a CTS message
  • the first information includes a third bitmap
  • receive a CTS message fed back by the second terminal wherein the third bitmap indicates that the second terminal needs to feed back the CTS message.
  • 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.
  • the sending module 41 is also used for:
  • each CTS configuration information corresponds to an index
  • one terminal corresponds to one or more CTS configuration information.
  • the message sending apparatus 40 further includes:
  • the third receiving module is configured to receive the CTS message fed back by the terminal corresponding to the target CTS configuration information according to the target CTS configuration information.
  • the CTS configuration information includes at least one of the following:
  • the CTS of at least one terminal sends indication information
  • the first information includes a group identifier of a target terminal group that needs to feed back the CTS message.
  • the sending module 41 is also used for:
  • RRC configuration information broadcast signal, downlink control information DCI;
  • the grouping information is used to indicate multiple divided terminal groups, and one terminal group corresponds to one group identifier.
  • the sending module 41 is also used for:
  • the CTS configuration information is respectively sent to different terminal groups; wherein, one terminal group corresponds to one CTS configuration information.
  • the message sending apparatus 40 further includes:
  • the fourth receiving module is configured to 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.
  • the message sending apparatus 40 provided in this embodiment of the present application can implement the various processes implemented in the method embodiment shown in FIG. 2 and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • the execution body may be a message receiving apparatus, or a control module in the message receiving apparatus for executing the message receiving method.
  • the message receiving device provided by the embodiment of the present application is described by taking a message receiving device executing a message receiving method as an example.
  • FIG. 5 is a schematic structural diagram of a message receiving apparatus provided by an embodiment of the present application, which is applied to a terminal. As shown in FIG. 5, the message receiving apparatus 50 includes:
  • the fifth receiving module 51 is used to receive the RTS message sent by the network side device
  • the RTS message includes first information, and the first information is used to determine the terminal that needs to feed back the CTS message.
  • the first information includes an index corresponding to target terminal combination information
  • the target terminal combination information includes at least one terminal that needs to feed back a CTS message related information.
  • the fifth receiving module 51 is also used for:
  • the RRC configuration information includes multiple terminal combination information, one terminal combination information corresponds to one index, and one terminal combination information includes at least one terminal related information.
  • the relevant information of the terminal includes at least one of the following:
  • the grouping information of the terminal is the grouping information of the terminal.
  • CTS sends indication information
  • the first information includes any of the following:
  • the first picture wherein, the first picture is used to indicate whether the terminal group needs to feed back the CTS message
  • the second bitmap is used to indicate whether the terminals in the terminal group need to feed back a CTS message
  • the third bitmap wherein, the third bitmap is used to indicate whether the terminal needs to feed back the CTS message.
  • 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.
  • the fifth receiving module 51 is also used for:
  • one CTS configuration information corresponds to one index
  • the first information includes a group identifier of a target terminal group that needs to feed back the CTS message.
  • the fifth receiving module 51 is also used for:
  • Receive grouping information sent by the network-side device by at least one of the following:
  • RRC configuration information broadcast signal, DCI
  • the grouping information is used to indicate multiple divided terminal groups, and one terminal group corresponds to one group identifier.
  • the fifth receiving module 51 is also used for:
  • the message receiving apparatus in this embodiment of the present application may be an apparatus, and may also be a component, an integrated circuit, or a chip in a terminal.
  • the device may be a mobile terminal or a non-mobile terminal.
  • the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machine, or self-service machine, etc., which are not specifically limited in the embodiments of the present application.
  • the message receiving apparatus in this embodiment of the present application may be an apparatus having an operating system.
  • the operating system may be an Android (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 effect. To avoid repetition, details are not described here.
  • an embodiment of the present application further provides a communication device 60, including a processor 61, a memory 62, and a program or instruction stored in the memory 62 and running on the processor 61.
  • a communication device 60 including a processor 61, a memory 62, and a program or instruction stored in the memory 62 and running on the processor 61.
  • the communication device 60 is a network-side device
  • the program or instruction is executed by the processor 61
  • each process of the above-mentioned embodiment of the message sending method can be realized, and the same technical effect can be achieved.
  • the communication device 60 is a terminal, when the program or instruction is executed by the processor 61, each process of the above-mentioned embodiment of the message receiving method can be realized, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.
  • FIG. 7 is a schematic diagram of a hardware structure of a terminal implementing an 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, a processor 710 and other components .
  • the terminal 700 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 710 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions.
  • a power source such as a battery
  • the terminal structure shown in FIG. 7 does not constitute a limitation on the terminal, and the terminal may include more or less components than shown, or combine some components, or arrange different components, which will not be repeated here.
  • the input unit 704 may include a graphics processor (Graphics Processing Unit, GPU) 7041 and a microphone 7042. Such as camera) to obtain still pictures or video image data for processing.
  • the display unit 706 may include a display panel 7061, which 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 called 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, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.
  • the radio frequency unit 701 receives the downlink data from the network side device, and then processes it to the processor 710; in addition, sends the uplink data to the network side device.
  • the 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.
  • 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 required for at least one function (such as a sound playback function, an image playback function, etc.) and the like.
  • the memory 709 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • PROM erasable programmable read-only memory
  • Erasable PROM Erasable PROM
  • EPROM electrically erasable programmable read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
  • the processor 710 may include one or more processing units; optionally, the processor 710 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, application programs or instructions, etc., Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor 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 the 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 effect. To avoid repetition, details are not described here.
  • the network side device 80 includes: an antenna 81 , a radio frequency device 82 , and a baseband device 83 .
  • the antenna 81 is connected to the radio frequency device 82 .
  • the radio frequency device 82 receives information through the antenna 81, and sends the received information to the baseband device 83 for processing.
  • the baseband device 83 processes the information to be sent and sends it to the radio frequency device 82
  • the radio frequency device 82 processes the received information and sends it out through the antenna 81 .
  • the above-mentioned frequency band processing apparatus may be located in the baseband apparatus 83 , and the method performed by the network side device in the above embodiments may be implemented in the baseband apparatus 83 .
  • the baseband apparatus 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 arranged. As shown in FIG. 8 , one of the chips is, for example, the processor 84 and is connected to the memory 85 to call the program in the memory 85 to execute The network-side device shown in the above method embodiments operates.
  • the baseband device 83 may further include a network interface 86 for exchanging information with the radio frequency device 82, and the interface is, for example, a common public radio interface (CPRI).
  • CPRI common public radio interface
  • the network-side device in this embodiment of the present application further includes: instructions or programs that are stored in the memory 85 and run on the processor 84, and the processor 84 invokes the instructions or programs in the memory 85 to execute the modules shown in FIG. 2 .
  • 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 instruction is executed by a processor, each process of the above method embodiment of FIG. 3.
  • Each process of the method embodiment can achieve the same technical effect. To avoid repetition, details are not repeated here.
  • the processor is the processor in the terminal described in the foregoing embodiment.
  • the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
  • 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 used to run a network-side device program or instruction to implement the above method in FIG. 2
  • the chip includes a processor and a communication interface
  • the communication interface is coupled to the processor
  • the processor is used to run a network-side device program or instruction to implement the above method in FIG. 2
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.
  • the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation.
  • the technical solution of the present application can be embodied in the form of a software product in essence or in a part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network side device, etc.) execute the methods described in the various embodiments of this application.
  • a storage medium such as ROM/RAM, magnetic disk, CD-ROM

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Abstract

本申请公开了一种消息发送、消息接收方法、装置及通信设备,属于通信技术领域。应用于网络侧设备的消息发送方法包括:发送RTS消息;所述RTS消息中包括第一信息,所述第一信息用于确定需要反馈CTS消息的终端。

Description

消息发送、消息接收方法、装置及通信设备
相关申请的交叉引用
本申请主张在2020年7月23日在中国提交的中国专利申请号No.202010718712.2的优先权,其全部内容通过引用包含于此。
技术领域
本申请属于通信技术领域,具体涉及一种消息发送、消息接收方法、装置及通信设备。
背景技术
现有技术中,当在共享频谱例如非授权频段(unlicensed band)采用握手机制进行信道接入时,可以采用多请求发送(Request-To-Send,RTS)机制。在新空口(New Radio,NR)中也可以引入握手机制进行信道接入,网络侧设备如基站/TRP可以同时向多个终端发送RTS消息。然而,在此情况下,目前尚未确定基站/TRP这种情况下的握手过程。
发明内容
本申请实施例的目的是提供一种消息发送、消息接收方法、装置及通信设备,以解决在网络侧设备能够同时向多个终端发送RTS消息的情况下,如何完成握手过程的问题。
为了解决上述技术问题,本申请是这样实现的:
第一方面,提供了一种消息发送方法,包括:
网络侧设备发送RTS消息;其中,所述RTS消息中包括第一信息,所述第一信息用于确定需要反馈CTS消息的终端。
第二方面,提供了一种消息接收方法,包括:
终端接收网络侧设备发送的RTS消息;其中,所述RTS消息中包括第一信息,所述第一信息用于确定需要反馈CTS消息的终端。
第三方面,提供了一种消息发送装置,应用于网络侧设备,包括:
发送模块,用于发送RTS消息;其中,所述RTS消息中包括第一信息,所述第一信息用于确定需要反馈CTS消息的终端。
第四方面,提供了一种消息接收装置,应用于终端,包括:
第五接收模块,用于接收网络侧设备发送的RTS消息;
其中,所述RTS消息中包括第一信息,所述第一信息用于确定需要反馈CTS消息的终端。
第五方面,提供了一种通信设备,该通信设备包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第一方面所述的方法的步骤,或者实现如第二方面所述的方法的步骤。
第六方面,提供了一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如第一方面所述的方法的步骤,或者实现如第二方面所述的方法的步骤。
第七方面,提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如第一方面所述的方法的步骤,或者实现如第二方面所述的方法的步骤。
在本申请实施例中,网络侧设备可以发送RTS消息,该RTS消息中包括第一信息,所述第一信息用于确定需要反馈CTS消息的终端。由此,可以在网络侧设备能够同时向多个终端发送RTS消息的情况下,在发送RTS消息时指示出需要反馈CTS消息的终端,从而使得网络侧设备和终端准确完成握手过程。
附图说明
图1是本申请实施例提供的一种无线通信系统的框图;
图2是本申请实施例提供的一种消息发送方法的流程图;
图3是本申请实施例提供的一种消息接收方法的流程图;
图4是本申请实施例提供的一种消息发送装置的结构示意图;
图5是本申请实施例提供的一种消息接收装置的结构示意图;
图6是本申请实施例提供的一种通信设备的结构示意图;
图7是本申请实施例提供的一种终端的结构示意图;
图8是本申请实施例提供的一种网络侧设备的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施,且“第一”、“第二”所区别的对象通常为一类,并不限定对象的个数,例如第一对象可以是一个,也可以是多个。此外,说明书以及权利要求中“和/或”表示所连接对象的至少其中之一,字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是,本申请实施例所描述的技术不限于长期演进型(Long Term Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)系统,还可用于其他无线通信系统,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access,SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用,所描述的技术既可用于以上提及的系统和无线电技术,也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio,NR)系统,并且在以下大部分描述中使用NR术语,但是这些技术也可应用于NR系统应用以外的应用,如第6代(6 th Generation,6G)通信系统。
图1示出本申请实施例可应用的一种无线通信系统的框图。无线通信系统包括终端11和网络侧设备12。其中,终端11也可以称作终端设备或者用户终端(User Equipment,UE),终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant,PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer,UMPC)、移动上网装置(Mobile Internet Device,MID)、可穿戴式设备(Wearable Device)或车载设备(Vehicle User Equipment,VUE)、行人终端(Pedestrian User Equipment,PUE)等终端侧设备,可穿戴式设备包括:手环、耳机、眼镜等。需要说明的是,在本申请实施例并不限定终端11的具体类型。网络侧设备12可以是基站/TRP或核心网,其中,基站/TRP可被称为节点B、演进节点B、接入点、基收发机站(Base Transceiver Station,BTS)、无线电基站/TRP、无线电收发机、基本服务集(Basic Service Set,BSS)、扩展服务集(Extended Service Set,ESS)、B节点、演进型B节点(eNB)、家用B节点、家用演进型B节点、WLAN接入点、WiFi节点、发送接收点(Transmitting Receiving Point,TRP)或所述领域中其他某个合适的术语,只要达到相同的技术效果,所述基站/TRP不限于特定技术词汇,需要说明的是,在本申请实施例中仅以NR系统中的基站/TRP为例,但是并不限定基站/TRP的具体类型。
为了便于理解本申请实施例,首先说明以下内容。
在通信系统中,共享频谱例如非授权频段(unlicensed band)可以作为授权频段(licensed band)的补充帮助运营商对服务进行扩容。为了与NR部署保持一致并尽可能的最大化基于NR的非授权接入,非授权频段可以工作在5GHz、37GHz和60GHz频段。由于非授权频段由多种技术(Radio Access Technology,RAT)共用,例如Wi-Fi、雷达、基于LTE的授权频谱辅助接入到非授权频谱(LTE-based Licensed-Assisted Access,LTE-LAA)等,因此在某些国家或者区域,非授权频段在使用时必须符合监管条例以保证所有设备可以公平地共享该资源,例如传输前侦听信道(Listen Before Talk,LBT)、最 大信道占用时间(Maximum Channel Occupancy Time,MCOT)等。当传输节点需要发送信息时,要求先在指定无线信道上执行LBT,对周围的无线传输环境进行能量检测(Energy Detection,ED),当检测到的能量低于一定门限时,信道被判断为空闲(idle),此时才可以开始传输。反之,则认为信道为忙,传输节点不能进行发送。传输节点可以是基站/TRP、UE、Wi-Fi接入点(Access Point,AP)等。传输节点开始传输后,占用的信道时间不能超过MCOT。
LBT可以解决一部分信道干扰问题,但是由于LBT都是由发端节点发起的,因此不能解决收端节点的隐藏节点问题。比如,gNB1在发送数据前做LBT,侦听到信道为空,因此gNB1向UE1发送数据,UE1接收数据。此时UE2有数据需要发送,做LBT,因为gNB1离得比较远,UE1处于接收状态,因此UE2侦听到信道为空,开始发送数据。但是由于UE2和UE1离得很近,UE1可以接收到UE2发送的信息,此时UE1在接收gNB1的数据时会受到干扰。UE2是UE1的隐藏节点。
为了避免隐藏节点的问题,对于非授权频段的传输,可以引入RTS/CTS的握手机制,或者传输请求/传输确认机制。比如在NR系统中可以引入握手机制进行信道接入,网络侧设备如基站/TRP可以同时向多个终端发送RTS消息。这样,NR系统中如何在RTS消息中指示出需要反馈CTS消息的终端是急需解决的问题。
本申请实施例中,CTS消息也可称为确定传输(confirm to send)消息,或称为确定发送消息。
下面结合附图,通过具体的实施例及其应用场景对本申请实施例提供的消息发送方法和消息接收方法进行详细地说明。
请参见图2,图2是本申请实施例提供的一种消息发送方法的流程图,该方法应用于网络侧设备,如图2所示,该方法包括如下步骤:
步骤21:网络侧设备发送RTS消息。
本实施例中,该RTS消息中包括第一信息,该第一信息用于确定需要反馈CTS消息的终端。比如,该第一信息可以用于指示需要反馈CTS消息的终 端,也可以用于指示不需要反馈CTS消息的终端。
由此,借助发送包括第一信息的RTS消息,可以在网络侧设备能够同时向多个终端发送RTS消息的情况下,在发送RTS消息时指示出需要反馈CTS消息的终端,从而使得网络侧设备和终端准确完成握手过程。比如,在多RTS(multi-RTS)机制下,可以使得网络侧设备和至少一个终端准确完成握手过程。
本申请实施例中,上述的第一信息可选为多种形式,分别说明如下。
形式1:
此形式1下,第一信息包括目标终端组合信息对应的索引,该目标终端组合信息包括需要反馈CTS消息的终端的相关信息,比如,该目标终端组合信息可以包括需要反馈CTS消息的一个或者多个终端的相关信息。这样,借助该索引,可以指示出需要反馈CTS消息的终端的相关信息。
本申请实施例中,通过无线资源控制(Radio Resource Control,RRC)配置信息可以配置多个终端组合信息,其中,每一个终端组合信息可以包括至少一个终端的相关信息。一个终端的相关信息可以包含在不同的终端组合信息中。需指出的,该终端组合信息也可称为终端配置信息,可理解为至少一个终端的相关信息的组合。
可选的,在发送RTS消息之前,网络侧设备可以向终端发送RRC配置信息,该RRC配置信息包括多个终端组合信息,一个终端组合信息对应一个索引,一个终端组合信息可以包括至少一个终端的相关信息。
可选的,一个终端的相关信息可以包括在一个或多个终端组合信息中。
可选的,上述终端的相关信息可以包括以下至少一项:
终端标识,比如UE ID;
终端的分组信息;其中,该分组信息用于指示已划分的多个终端组合信息,每一个终端组合信息对应一个组标识group ID;
CTS发送指示信息;比如,该CTS发送指示信息可以包括但不限于CTS消息格式、空间信息(Spatial info)等;
CTS资源指示信息;比如,该CTS资源指示信息包括CTS的时域、频域资源指示信息,可以包括但不限于CTS消息发送时间、PUCCH资源指示(PUCCH Resource Indication,PRI)等。
可选的,在发送RTS消息之后,网络侧设备还可以接收该目标终端组合信息对应的终端反馈的CTS消息,以完成握手过程。
一种实施方式中,gNB发送的RTS消息中携带一个UE组合信息对应的索引(index)。之后,该UE组合信息中的UE在接收到该RTS消息后,会向gNB发送CTS消息作为响应。
形式2:
此形式2下,第一信息可以包括以下任意一项:
1)需要反馈CTS消息的目标终端组(UE group)的组标识,如group ID。
可选的,在第一信息包括需要反馈CTS消息的目标终端组的组标识group ID的情况下,网络侧设备在发送RTS消息之后,可以接收该目标终端组中的终端反馈的CTS消息。比如,gNB发送的RTS消息中包括group ID 1,则该group ID 1对应的终端组中的所有终端在收到RTS消息后需要反馈CTS消息。
需指出的,目标终端组为需要反馈CTS消息的终端组。
一种实施方式中,网络侧设备可以在某终端组中存在需要反馈CTS消息的终端的情况下,该需要反馈CTS消息的终端的个数可以为1个或多个,发送包括该终端组的组标识的RTS消息。
2)第一位图(bitmap)。其中,该第一位图用于指示终端组是否需要反馈CTS消息。该第一位图中,每一个比特位对应于一个终端组。例如,比特位取值为1表示对应的终端组中的所有终端均需要反馈CTS消息,比特位取值为0表示对应的终端组中的所有终端均不需要反馈CTS消息。
可选的,在第一信息包括第一位图的情况下,网络侧设备在发送RTS消息之后,可以接收该第一位图指示的需要反馈CTS消息的终端组中的终端反馈的CTS消息。比如,gNB发送的RTS消息中包括bitmap1,则该bitmap1 指示的每一个需要反馈CTS消息的终端组内的所有终端在收到RTS消息后需要反馈CTS消息。
3)终端组的组标识,以及第二位图。其中,该第二位图用于指示该终端组中的终端是否需要反馈CTS消息。该第二位图中,每一个比特位对应于终端组中的一个终端。例如,比特位取值为1表示对应的终端需要反馈CTS消息,比特位取值为0表示对应的终端不需要反馈CTS消息。
可选的,在第一信息包括目标终端组的组标识以及第二位图的情况下,网络侧设备在发送RTS消息之后,可以接收该目标终端组中的第一终端反馈的CTS消息,其中该第二位图指示第一终端需要反馈CTS消息。比如,gNB发送的RTS消息中包括group ID 2和bitmap 2,则该group ID 2对应的终端组中的、该bitmap 2指示的需要反馈CTS消息的所有终端在收到RTS消息后需要反馈CTS消息。
需指出的,此3)中,RTS消息中可以包括多个第二位图以及该多个第二位图对应的group ID。此时,终端在分组时只能隶属于一个终端组。
4)第三位图。其中,该第三位图用于指示终端是否需要反馈CTS消息。此时没有对终端进行分组,所有终端均用bitmap指示。该第三位图中,每一个比特位对应于一个终端。例如,比特位取值为1表示对应的终端需要反馈CTS消息,比特位取值为0表示对应的终端不需要反馈CTS消息。
可选的,在第一信息包括第三位图的情况下,网络侧设备在发送RTS消息之后,可以接收第二终端反馈的CTS消息,其中该第三位图指示第二终端需要反馈CTS消息。比如,gNB发送的RTS消息中包括bitmap 3,则该bitmap 3指示的需要反馈CTS消息的所有终端在收到RTS消息后需要反馈CTS消息。
可选的,此形式2下,网络侧设备可以通过以下至少一项,向终端发送分组信息:RRC配置信息、广播信号、下行控制信息(Downlink Control Information,DCI)。该分组信息用于指示已划分的多个终端组,每个终端组对应一个组标识。每个终端可以隶属于一个或者多个终端组。
形式3:
此形式3下,第一信息包括目标CTS配置信息对应的索引,该目标CTS配置信息对应至少一个需要反馈CTS消息的终端。索引的比特数取决于相应CTS配置信息的数量。这样,借助该索引,可以指示出需要反馈CTS消息的终端的相关信息。
本申请实施例中,在发送RTS消息之前,网络侧设备可以通过广播信号发送以下至少一项:
多个CTS配置信息;其中,一个CTS配置信息对应一个索引;
终端与CTS配置信息之间的映射规则;借助该映射规则,终端可以通过CTS配置信息得到相应的CTS发送指示信息、CTS资源指示信息等。
可选的,一个终端可以对应一个或多个CTS配置信息。一个CTS配置信息可以对应一个或多个终端。
可选的,该CTS配置信息可以包括以下至少一项:
至少一个终端的CTS发送指示信息;比如,该CTS发送指示信息可以包括但不限于CTS消息格式、空间信息(Spatial info)等;
至少一个终端的CTS资源指示信息;该CTS资源指示信息包括CTS的时域、频域资源指示信息,可以包括但不限于CTS消息发送时间、PRI等。
可选的,在发送RTS消息之后,网络侧设备可以接收该目标CTS配置信息对应的终端,按照该目标CTS配置信息反馈的CTS消息,以完成握手过程。
一种实施方式中,gNB发送的RTS消息中包括某CTS配置信息对应的索引(index)。之后,所有和该CTS配置信息有映射关系的终端在接收到该RTS消息后,可以按照该CTS配置信息发送CTS消息。
形式4:
此形式4下,第一信息包括需要反馈CTS消息的目标终端组的组标识,如group ID。需指出的,目标终端组为需要反馈CTS消息的终端组。
可选的,此形式4下,网络侧设备可以通过以下至少一项,向终端发送 分组信息:RRC配置信息、广播信号、下行控制信息(Downlink Control Information,DCI)。该分组信息用于指示已划分的多个终端组,每个终端组对应一个组标识。每个终端可以隶属于一个或者多个终端组。
可选的,在发送RTS消息之前,网络侧设备可以分别向不同的终端组发送CTS配置信息,以对不同的终端组进行CTS信息配置。每个终端组对应一个CTS配置信息。
可选的,在发送RTS消息之后,网络侧设备可以接收该目标终端组中的终端,按照该目标终端组对应的CTS配置信息发送的CTS消息。
一种实施方式中,gNB发送的RTS消息中包括group ID,则该group ID对应的终端组中的所有终端在收到RTS消息后,按照该group ID对应的CTS配置信息发送CTS消息。
请参见图3,图3是本申请实施例提供的一种消息接收方法的流程图,该方法应用于终端,如图3所示,该方法包括如下步骤:
步骤31:终端接收网络侧设备发送的RTS消息。
本实施例中,该RTS消息中包括第一信息,该第一信息用于确定需要反馈CTS消息的终端。比如,该第一信息可以用于指示需要反馈CTS消息的终端,也可以用于指示不需要反馈CTS消息的终端。
由此,可以在发送RTS消息时指示出需要反馈CTS消息的终端,从而使得网络侧设备和终端准确完成握手过程。比如,在多RTS机制下,可以使得网络侧设备和至少一个终端准确完成握手过程。
可选的,所述第一信息为目标终端组合信息对应的索引,所述目标终端组合信息包括需要反馈CTS消息的终端的相关信息。
可选的,所述接收网络侧设备发送的RTS消息之前,终端可以接收所述网络侧设备发送的RRC配置信息;
其中,所述RRC配置信息包括多个终端组合信息,一个终端组合信息对应一个索引,一个终端组合信息包括至少一个终端的相关信息。
可选的,所述终端的相关信息包括以下至少一项:
终端标识;
终端的分组信息;
CTS发送指示信息;
CTS资源指示信息。
可选的,所述第一信息为以下任意一项:
需要反馈CTS消息的目标终端组的组标识;
第一位图;其中,所述第一位图用于指示终端组是否需要反馈CTS消息;
终端组的组标识,以及第二位图;其中,所述第二位图用于指示所述终端组中的终端是否需要反馈CTS消息;
第三位图;其中,所述第三位图用于指示终端是否需要反馈CTS消息。
可选的,所述第一信息为目标CTS配置信息对应的索引,所述目标CTS配置信息对应至少一个需要反馈CTS消息的终端。
可选的,在接收网络侧设备发送的RTS消息之前,终端可以通过广播信号接收以下至少一项:
多个CTS配置信息;其中,一个CTS配置信息对应一个索引;
终端与CTS配置信息之间的映射规则。
可选的,所述第一信息为需要反馈CTS消息的目标终端组的组标识。
可选的,在接收网络侧设备发送的RTS消息之前,终端可以通过以下至少一项,接收所述网络侧设备发送的分组信息:
RRC配置信息、广播信号、DCI;
其中,所述分组信息用于指示已划分的多个终端组,一个终端组对应一个组标识。
可选的,在接收网络侧设备发送的RTS消息之前,终端可以接收所述网络侧设备发送的所述终端所在的终端组对应的CTS配置信息。
需指出的,上述的消息发送方法和接收方法所涉及的传输为下行传输,但可理解的,相应的握手过程也可以适用于旁链路传输和下行传输,分别说明如下。
1>旁链路传输
在旁链路传输的情况下,第三终端可以发送RTS消息,该RTS消息中包括第一信息,该第一信息用于确定需要反馈CTS消息的终端。比如,该第一信息可以用于指示需要反馈CTS消息的终端,也可以用于指示不需要反馈CTS消息的终端。
可选地,上述的第一信息可选为多种形式,分别说明如下。
形式1:
此形式1下,第一信息包括目标终端组合信息对应的索引,该目标终端组合信息包括需要反馈CTS消息的终端的相关信息,比如,该目标终端组合信息可以包括一个或者多个需要反馈CTS消息的终端的相关信息。这样,借助该索引,可以指示出需要反馈CTS消息的终端的相关信息。
本申请实施例中,网络侧设备通过RRC配置信息可以配置多个终端组合信息,其中,一个终端组合信息可以包括至少一个终端的相关信息。一个终端的相关信息可以包含在不同的终端组合信息中。需指出的,该终端组合信息也可称为终端配置信息,可理解为至少一个终端的相关信息的组合。
可选的,网络侧设备可以向终端发送RRC配置信息,该RRC配置信息包括多个终端组合信息,一个终端组合信息对应一个索引,一个终端组合信息可以包括至少一个终端的相关信息。
可选的,一个终端的相关信息可以包括在一个或多个终端组合信息中。
可选的,上述终端的相关信息可以包括以下至少一项:
终端标识,比如UE ID;
终端的分组信息;其中,该分组信息用于指示已划分的多个终端组合信息,每一个终端组合信息对应一个组标识group ID;
CTS发送指示信息;比如,该CTS发送指示信息可以包括但不限于CTS消息格式、空间信息(Spatial info)等;
CTS资源指示信息;比如,该CTS资源指示信息包括CTS的时域、频域资源指示信息,可以包括但不限于CTS消息发送时间、PSCCH资源指示等。
可选的,在发送RTS消息之后,第三终端可以接收该目标终端组合信息对应的终端反馈的CTS消息,以完成握手过程。
形式2:
此形式2下,第一信息可以包括以下任意一项:
1)需要反馈CTS消息的目标终端组(UE group)的组标识,如group ID。
可选的,在第一信息包括需要反馈CTS消息的目标终端组的组标识group ID的情况下,第三终端在发送RTS消息之后,可以接收该目标终端组中的终端反馈的CTS消息。
需指出的,目标终端组为需要反馈CTS消息的终端组。
2)第一位图(bitmap)。其中,该第一位图用于指示终端组是否需要反馈CTS消息。该第一位图中,每一个比特位对应于一个终端组。例如,比特位取值为1表示对应的终端组中的所有终端均需要反馈CTS消息,比特位取值为0表示对应的终端组中的所有终端均不需要反馈CTS消息。
可选的,在第一信息为第一位图的情况下,第三终端在发送RTS消息之后,可以接收该第一位图指示的需要反馈CTS消息的终端组中的终端反馈的CTS消息。
3)终端组的组标识,以及第二位图。其中,该第二位图用于指示该终端组中的终端是否需要反馈CTS消息。该第二位图中,每一个比特位对应于终端组中的一个终端。例如,比特位取值为1表示对应的终端需要反馈CTS消息,比特位取值为0表示对应的终端不需要反馈CTS消息。
可选的,在第一信息为目标终端组的组标识以及第二位图的情况下,第三终端在发送RTS消息之后,可以接收该目标终端组中的第一终端反馈的CTS消息,其中该第二位图指示第一终端需要反馈CTS消息。
需指出的,此3)中,RTS消息中可以包括多个第二位图以及该多个第二位图对应的group ID。此时,终端在分组时只能隶属于一个终端组。
4)第三位图。其中,该第三位图用于指示终端是否需要反馈CTS消息。此时没有对终端进行分组,所有终端均用bitmap指示。该第三位图中,每一 个比特位对应于一个终端。例如,比特位取值为1表示对应的终端需要反馈CTS消息,比特位取值为0表示对应的终端不需要反馈CTS消息。
可选的,在第一信息为第三位图的情况下,第三终端在发送RTS消息之后,可以接收第二终端反馈的CTS消息,其中该第三位图指示第二终端需要反馈CTS消息。
可选的,此形式2下,网络侧设备可以通过以下至少一项,向终端发送分组信息:RRC配置信息、广播信号、下行控制信息(Downlink Control Information,DCI)。该分组信息用于指示已划分的多个终端组,每个终端组对应一个组标识。每个终端可以隶属于一个或者多个终端组。
形式3:
此形式3下,第一信息包括目标CTS配置信息对应的索引,该目标CTS配置信息对应至少一个需要反馈CTS消息的终端。索引的比特数取决于相应CTS配置信息的数量。这样,借助该索引,可以指示出需要反馈CTS消息的终端的相关信息。
本申请实施例中,网络侧设备可以通过广播信号发送以下至少一项:
多个CTS配置信息;其中,一个CTS配置信息对应一个索引;
终端与CTS配置信息之间的映射规则;借助该映射规则,终端可以通过CTS配置信息得到相应的CTS发送指示信息、CTS资源指示信息等。
可选的,一个终端可以对应一个或多个CTS配置信息。一个CTS配置信息可以对应一个或多个终端。
可选的,该CTS配置信息可以包括以下至少一项:
至少一个终端的CTS发送指示信息;比如,该CTS发送指示信息可以包括但不限于CTS消息格式、空间信息(Spatial info)等;
至少一个终端的CTS资源指示信息;该CTS资源指示信息包括CTS的时域、频域资源指示信息,可以包括但不限于CTS消息发送时间、PSCCH资源指示等。
可选的,在发送RTS消息之后,第三终端可以接收该目标CTS配置信息 对应的终端,按照该目标CTS配置信息反馈的CTS消息,以完成握手过程。
形式4:
此形式4下,第一信息包括需要反馈CTS消息的目标终端组的组标识,如group ID。需指出的,目标终端组为需要反馈CTS消息的终端组。
可选的,此形式4下,网络侧设备可以通过以下至少一项,向终端发送分组信息:RRC配置信息、广播信号、下行控制信息(Downlink Control Information,DCI)。该分组信息用于指示已划分的多个终端组,每个终端组对应一个组标识。每个终端可以隶属于一个或者多个终端组。
可选的,网络侧设备可以分别向不同的终端组发送CTS配置信息,以对不同的终端组进行CTS信息配置。每个终端组对应一个CTS配置信息。
可选的,在发送RTS消息之后,第三终端可以接收该目标终端组中的终端,按照该目标终端组对应的CTS配置信息发送的CTS消息。
2>上行传输
在上行传输的情况下,第四终端可以发送RTS消息,该RTS消息中包括第一信息,该第一信息用于确定需要反馈CTS消息的网络侧设备。比如,该第一信息可以用于指示需要反馈CTS消息的网络侧设备,也可以用于指示不需要反馈CTS消息的网络侧设备。
下面以网络侧设备为基站/TRP为例进行说明,但不以此为限。
可选地,上述的第一信息可选为多种形式,分别说明如下。
形式1:
此形式1下,第一信息包括目标基站/TRP组合信息对应的索引,该目标基站/TRP组合信息包括需要反馈CTS消息的基站/TRP的相关信息,比如,该目标基站/TRP组合信息可以包括一个或者多个需要反馈CTS消息的基站/TRP的相关信息。这样,借助该索引,可以指示出需要反馈CTS消息的基站/TRP的相关信息。
本申请实施例中,基站/TRP可以配置多个基站/TRP组合信息,其中,一个基站/TRP组合信息可以包括至少一个基站或者TRP的相关信息。一个基 站/TRP的相关信息可以包含在不同的基站/TRP组合信息中。需指出的,该基站/TRP组合信息也可称为基站/TRP配置信息,可理解为至少一个基站/TRP的相关信息的组合。
可选的,一个基站/TRP的相关信息可以包括在一个或多个基站/TRP组合信息中。
可选的,上述基站/TRP的相关信息可以包括以下至少一项:
基站/TRP标识,比如gNB ID、TRP ID;
基站/TRP的分组信息;其中,该分组信息用于指示已划分的多个基站/TRP组合信息,每一个基站/TRP组合信息对应一个组标识group ID;
CTS发送指示信息;比如,该CTS发送指示信息可以包括但不限于CTS消息格式、空间信息(Spatial info)等;
CTS资源指示信息;比如,该CTS资源指示信息包括CTS的时域、频域资源指示信息,可以包括但不限于CTS消息发送时间、PDCCH资源指示等。
可选的,在发送RTS消息之后,第四终端可以接收该目标基站/TRP组合信息对应的基站/TRP反馈的CTS消息,以完成握手过程。
形式2:
此形式2下,第一信息可以包括以下任意一项:
1)需要反馈CTS消息的目标基站/TRP组(gNB/TRP group)的组标识,如group ID。
可选的,在第一信息包括需要反馈CTS消息的目标基站/TRP组的组标识group ID的情况下,第四终端在发送RTS消息之后,可以接收该目标基站/TRP组中的基站/TRP反馈的CTS消息。
需指出的,目标基站/TRP组为需要反馈CTS消息的基站/TRP组。
2)第一位图(bitmap)。其中,该第一位图用于指示基站/TRP组是否需要反馈CTS消息。该第一位图中,每一个比特位对应于一个基站/TRP组。例如,比特位取值为1表示对应的基站/TRP组中的所有基站/TRP均需要反馈CTS消息,比特位取值为0表示对应的基站/TRP组中的所有基站/TRP均不 需要反馈CTS消息。
可选的,在第一信息为第一位图的情况下,第四终端在发送RTS消息之后,可以接收该第一位图指示的需要反馈CTS消息的基站/TRP组中的基站/TRP反馈的CTS消息。
3)基站/TRP组的组标识,以及第二位图。其中,该第二位图用于指示该基站/TRP组中的基站/TRP是否需要反馈CTS消息。该第二位图中,每一个比特位对应于基站/TRP组中的一个基站/TRP。例如,比特位取值为1表示对应的基站/TRP需要反馈CTS消息,比特位取值为0表示对应的基站/TRP不需要反馈CTS消息。
可选的,在第一信息为目标基站/TRP组的组标识以及第二位图的情况下,第四终端在发送RTS消息之后,可以接收该目标基站/TRP组中的第一基站/TRP反馈的CTS消息,其中该第二位图指示第一基站/TRP需要反馈CTS消息。
4)第三位图。其中,该第三位图用于指示基站/TRP是否需要反馈CTS消息。此时没有对基站/TRP进行分组,所有基站/TRP均用bitmap指示。该第三位图中,每一个比特位对应于一个基站/TRP。例如,比特位取值为1表示对应的基站/TRP需要反馈CTS消息,比特位取值为0表示对应的基站/TRP不需要反馈CTS消息。
可选的,在第一信息为第三位图的情况下,第四终端在发送RTS消息之后,可以接收第二基站/TRP反馈的CTS消息,其中该第三位图指示第二基站/TRP需要反馈CTS消息。
形式3:
此形式3下,第一信息包括目标CTS配置信息对应的索引,该目标CTS配置信息对应至少一个需要反馈CTS消息的基站/TRP。索引的比特数取决于相应CTS配置信息的数量。这样,借助该索引,可以指示出需要反馈CTS消息的基站/TRP的相关信息。
可选的,一个基站/TRP可以对应一个或多个CTS配置信息。一个CTS 配置信息可以对应一个或多个终端。
可选的,该CTS配置信息可以包括以下至少一项:
至少一个基站/TRP的CTS发送指示信息;比如,该CTS发送指示信息可以包括但不限于CTS消息格式、空间信息(Spatial info)等;
至少一个基站/TRP的CTS资源指示信息;该CTS资源指示信息包括CTS的时域、频域资源指示信息,可以包括但不限于CTS消息发送时间、PDCCH资源指示等。
可选的,在发送RTS消息之后,第四终端可以接收该目标CTS配置信息对应的基站/TRP,按照该目标CTS配置信息反馈的CTS消息,以完成握手过程。
形式4:
此形式4下,第一信息包括需要反馈CTS消息的目标基站/TRP组的组标识,如group ID。需指出的,目标基站/TRP组为需要反馈CTS消息的基站/TRP组。
可选的,在发送RTS消息之后,第四终端可以接收该目标基站/TRP组中的基站/TRP,按照该目标基站/TRP组对应的CTS配置信息发送的CTS消息。
需要说明的是,本申请实施例提供的消息发送方法,执行主体可以为消息发送装置,或者,该消息发送装置中的用于执行消息发送方法的控制模块。本申请实施例中以消息发送装置执行消息发送方法为例,说明本申请实施例提供的消息发送装置。
请参见图4,图4是本申请实施例提供的一种消息发送装置的结构示意图,应用于网络侧设备,如图4所示,该消息发送装置40包括:
发送模块41,用于发送RTS消息;
其中,所述RTS消息中包括第一信息,所述第一信息用于确定需要反馈CTS消息的终端。
可选的,所述第一信息为目标终端组合信息对应的索引,所述目标终端组合信息包括至少一个需要反馈CTS消息的终端的相关信息。
可选的,所述发送模块41还用于:
向终端发送无线资源控制RRC配置信息;
其中,所述RRC配置信息包括多个终端组合信息,一个终端组合信息对应一个索引,一个终端组合信息包括至少一个终端的相关信息。
可选的,每个终端的相关信息包括在一个或多个终端组合信息中。
可选的,所述终端的相关信息包括以下至少一项:
终端标识;
终端的分组信息;
CTS发送指示信息;
CTS资源指示信息。
可选的,该消息发送装置40还包括:
第一接收模块,用于接收所述目标终端组合信息对应的终端反馈的CTS消息。
可选的,所述第一信息包括以下任意一项:
需要反馈CTS消息的目标终端组的组标识;
第一位图;其中,所述第一位图用于指示终端组是否需要反馈CTS消息;
终端组的组标识,以及第二位图;其中,所述第二位图用于指示所述终端组中的终端是否需要反馈CTS消息;
第三位图;其中,所述第三位图用于指示终端是否需要反馈CTS消息。
可选的,该消息发送装置40还包括:
第二接收模块,用于在所述第一信息包括需要反馈CTS消息的目标终端组的组标识的情况下,接收所述目标终端组中的终端反馈的CTS消息;
或者,在所述第一信息包括第一位图的情况下,接收所述第一位图指示的需要反馈CTS消息的终端组中的终端反馈的CTS消息;
或者,在所述第一信息包括终端组的组标识以及第二位图的情况下,接收所述终端组中的第一终端反馈的CTS消息;其中,所述第二位图指示所述第一终端需要反馈CTS消息;
或者,在所述第一信息包括第三位图的情况下,接收第二终端反馈的CTS消息;其中,所述第三位图指示所述第二终端需要反馈CTS消息。
可选的,所述第一信息包括目标CTS配置信息对应的索引,所述目标CTS配置信息对应至少一个需要反馈CTS消息的终端。
可选的,所述发送模块41还用于:
通过广播信号发送以下至少一项:
多个CTS配置信息;其中,每一个CTS配置信息对应一个索引;
终端与CTS配置信息之间的映射规则。
可选的,一个终端对应一个或多个CTS配置信息。
可选的,该消息发送装置40还包括:
第三接收模块,用于接收所述目标CTS配置信息对应的终端,按照所述目标CTS配置信息反馈的CTS消息。
可选的,所述CTS配置信息包括以下至少一项:
至少一个终端的CTS发送指示信息;
至少一个终端的CTS资源指示信息。
可选的,所述第一信息包括需要反馈CTS消息的目标终端组的组标识。
可选的,所述发送模块41还用于:
通过以下至少一项,向终端发送分组信息:
RRC配置信息、广播信号、下行控制信息DCI;
其中,所述分组信息用于指示已划分的多个终端组,一个终端组对应一个组标识。
可选的,所述发送模块41还用于:
分别向不同的终端组发送CTS配置信息;其中,一个终端组对应一个CTS配置信息。
可选的,该消息发送装置40还包括:
第四接收模块,用于接收所述目标终端组中的终端,按照所述目标终端组对应的CTS配置信息发送的CTS消息。
本申请实施例提供的消息发送装置40能够实现图2所示方法实施例实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
需要说明的是,本申请实施例提供的消息接收方法,执行主体可以为消息接收装置,或者,该消息接收装置中的用于执行消息接收方法的控制模块。本申请实施例中以消息接收装置执行消息接收方法为例,说明本申请实施例提供的消息接收装置。
请参见图5,图5是本申请实施例提供的一种消息接收装置的结构示意图,应用于终端,如图5所示,该消息接收装置50包括:
第五接收模块51,用于接收网络侧设备发送的RTS消息;
其中,所述RTS消息中包括第一信息,所述第一信息用于确定需要反馈CTS消息的终端。
可选的,所述第一信息包括目标终端组合信息对应的索引,所述目标终端组合信息包括至少一个需要反馈CTS消息的终端的相关信息。
可选的,所述第五接收模块51还用于:
接收所述网络侧设备发送的RRC配置信息;
其中,所述RRC配置信息包括多个终端组合信息,一个终端组合信息对应一个索引,一个终端组合信息包括至少一个终端的相关信息。
可选的,所述终端的相关信息包括以下至少一项:
终端标识;
终端的分组信息;
CTS发送指示信息;
CTS资源指示信息。
可选的,所述第一信息包括以下任意一项:
需要反馈CTS消息的目标终端组的组标识;
第一位图;其中,所述第一位图用于指示终端组是否需要反馈CTS消息;
终端组的组标识,以及第二位图;其中,所述第二位图用于指示所述终端组中的终端是否需要反馈CTS消息;
第三位图;其中,所述第三位图用于指示终端是否需要反馈CTS消息。
可选的,所述第一信息包括目标CTS配置信息对应的索引,所述目标CTS配置信息对应至少一个需要反馈CTS消息的终端。
可选的,所述第五接收模块51还用于:
通过广播信号接收以下至少一项:
多个CTS配置信息;其中,一个CTS配置信息对应一个索引;
终端与CTS配置信息之间的映射规则。
可选的,所述第一信息包括需要反馈CTS消息的目标终端组的组标识。
可选的,所述第五接收模块51还用于:
通过以下至少一项,接收所述网络侧设备发送的分组信息:
RRC配置信息、广播信号、DCI;
其中,所述分组信息用于指示已划分的多个终端组,一个终端组对应一个组标识。
可选的,所述第五接收模块51还用于:
接收所述网络侧设备发送的所述终端所在的终端组对应的CTS配置信息。
本申请实施例中的消息接收装置可以是装置,也可以是终端中的部件、集成电路、或芯片。该装置可以是移动终端,也可以为非移动终端。示例性的,移动终端可以包括但不限于上述所列举的终端11的类型,非移动终端可以为服务器、网络附属存储器(Network Attached Storage,NAS)、个人计算机(personal computer,PC)、电视机(television,TV)、柜员机或者自助机等,本申请实施例不作具体限定。
本申请实施例中的消息接收装置可以为具有操作系统的装置。该操作系统可以为安卓(Android)操作系统,可以为ios操作系统,还可以为其他可能的操作系统,本申请实施例不作具体限定。
本申请实施例提供的消息接收装置50能够实现图3所示方法实施例实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
可选的,如图6所示,本申请实施例还提供一种通信设备60,包括处理 器61,存储器62,存储在存储器62上并可在所述处理器61上运行的程序或指令。例如,该通信设备60为网络侧设备时,该程序或指令被处理器61执行时实现上述消息发送方法实施例的各个过程,且能达到相同的技术效果。该通信设备60为终端时,该程序或指令被处理器61执行时实现上述消息接收方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
图7为实现本申请实施例的一种终端的硬件结构示意图。
该终端700包括但不限于:射频单元701、网络模块702、音频输出单元703、输入单元704、传感器705、显示单元706、用户输入单元707、接口单元708、存储器709、以及处理器710等部件。
本领域技术人员可以理解,终端700还可以包括给各个部件供电的电源(比如电池),电源可以通过电源管理系统与处理器710逻辑相连,从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图7中示出的终端结构并不构成对终端的限定,终端可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置,在此不再赘述。
应理解的是,本申请实施例中,输入单元704可以包括图形处理器(Graphics Processing Unit,GPU)7041和麦克风7042,图形处理器7041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元706可包括显示面板7061,可以采用液晶显示器、有机发光二极管等形式来配置显示面板7061。用户输入单元707包括触控面板7071以及其他输入设备7072。触控面板7071,也称为触摸屏。触控面板7071可包括触摸检测装置和触摸控制器两个部分。其他输入设备7072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆,在此不再赘述。
本申请实施例中,射频单元701将来自网络侧设备的下行数据接收后,给处理器710处理;另外,将上行的数据发送给网络侧设备。通常,射频单元701包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放 大器、双工器等。
存储器709可用于存储软件程序或指令以及各种数据。存储器709可主要包括存储程序或指令区和存储数据区,其中,存储程序或指令区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外,存储器709可以包括高速随机存取存储器,还可以包括非易失性存储器,其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。
处理器710可包括一个或多个处理单元;可选的,处理器710可集成应用处理器和调制解调处理器,其中,应用处理器主要处理操作系统、用户界面和应用程序或指令等,调制解调处理器主要处理无线通信,如基带处理器。可以理解的是,上述调制解调处理器也可以不集成到处理器710中。
其中,射频单元701,用于接收网络侧设备发送的RTS消息,所述RTS消息中包括第一信息,所述第一信息用于确定需要反馈CTS消息的终端。
本申请实施例提供的终端700能够实现图3所示方法实施例实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
可选的,本申请实施例还提供了一种网络侧设备。如图8所示,该网络侧设备80包括:天线81、射频装置82、基带装置83。天线81与射频装置82连接。在上行方向上,射频装置82通过天线81接收信息,将接收的信息发送给基带装置83进行处理。在下行方向上,基带装置83对要发送的信息进行处理,并发送给射频装置82,射频装置82对收到的信息进行处理后经过天线81发送出去。
上述频带处理装置可以位于基带装置83中,以上实施例中网络侧设备执行的方法可以在基带装置83中实现,该基带装置83包括处理器84和存储器85。
基带装置83例如可以包括至少一个基带板,该基带板上设置有多个芯片,如图8所示,其中一个芯片例如为处理器84,与存储器85连接,以调用存储器85中的程序,执行以上方法实施例中所示的网络侧设备操作。
该基带装置83还可以包括网络接口86,用于与射频装置82交互信息,该接口例如为通用公共无线接口(common public radio interface,CPRI)。
具体地,本申请实施例的网络侧设备还包括:存储在存储器85上并可在处理器84上运行的指令或程序,处理器84调用存储器85中的指令或程序执行图2所示各模块执行的方法,并达到相同的技术效果,为避免重复,故不在此赘述。
本申请实施例还提供一种可读存储介质,所述可读存储介质上存储有程序或指令,该程序或指令被处理器执行时实现上述图2方法实施例的各个过程,或者实现上述图3方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
其中,所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质,包括计算机可读存储介质,如计算机只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等。
本申请实施例另提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行网络侧设备程序或指令,实现上述图2方法实施例的各个过程,或者实现上述图3方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
应理解,本申请实施例提到的芯片还可以称为系统级芯片,系统芯片,芯片系统或片上系统芯片等。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物 品或者装置中还存在另外的相同要素。此外,需要指出的是,本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能,还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能,例如,可以按不同于所描述的次序来执行所描述的方法,并且还可以添加、省去、或组合各种步骤。另外,参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端(可以是手机,计算机,服务器,空调器,或者网络侧设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述,但是本申请并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本申请的启示下,在不脱离本申请宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本申请的保护之内。

Claims (34)

  1. 一种消息发送方法,包括:
    网络侧设备发送请求发送RTS消息;
    其中,所述RTS消息中包括第一信息,所述第一信息用于确定需要反馈清除发送CTS消息的终端。
  2. 根据权利要求1所述的方法,其中,所述第一信息包括目标终端组合信息对应的索引,所述目标终端组合信息包括需要反馈CTS消息的终端的相关信息。
  3. 根据权利要求2所述的方法,其中,所述发送请求发送RTS消息之前,所述方法还包括:
    所述网络侧设备向终端发送无线资源控制RRC配置信息;其中,所述RRC配置信息包括多个终端组合信息,一个终端组合信息对应一个索引,一个终端组合信息包括至少一个终端的相关信息。
  4. 根据权利要求3所述的方法,其中,一个终端的相关信息包括在一个或多个终端组合信息中。
  5. 根据权利要求3所述的方法,其中,所述终端的相关信息包括以下至少一项:
    终端标识;
    终端的分组信息;
    CTS发送指示信息;
    CTS资源指示信息。
  6. 根据权利要求2所述的方法,其中,所述发送请求发送RTS消息之后,所述方法还包括:
    所述网络侧设备接收所述目标终端组合信息对应的终端反馈的CTS消息。
  7. 根据权利要求1所述的方法,其中,所述第一信息包括以下任意一项:
    需要反馈CTS消息的目标终端组的组标识;
    第一位图;其中,所述第一位图用于指示终端组是否需要反馈CTS消息;
    终端组的组标识,以及第二位图;其中,所述第二位图用于指示所述终端组中的终端是否需要反馈CTS消息;
    第三位图;其中,所述第三位图用于指示终端是否需要反馈CTS消息。
  8. 根据权利要求7所述的方法,其中,所述发送请求发送RTS消息之后,所述方法还包括:
    所述网络侧设备在所述第一信息包括需要反馈CTS消息的目标终端组的组标识的情况下,接收所述目标终端组中的终端反馈的CTS消息;
    或者,
    所述网络侧设备在所述第一信息包括第一位图的情况下,接收所述第一位图指示的需要反馈CTS消息的终端组中的终端反馈的CTS消息;
    或者,
    所述网络侧设备在所述第一信息包括终端组的组标识以及第二位图的情况下,接收所述终端组中的第一终端反馈的CTS消息;其中,所述第二位图指示所述第一终端需要反馈CTS消息;
    或者,
    所述网络侧设备在所述第一信息包括第三位图的情况下,接收第二终端反馈的CTS消息;其中,所述第三位图指示所述第二终端需要反馈CTS消息。
  9. 根据权利要求1所述的方法,其中,所述第一信息包括目标CTS配置信息对应的索引,所述目标CTS配置信息对应至少一个需要反馈CTS消息的终端。
  10. 根据权利要求9所述的方法,其中,所述发送请求发送RTS消息之前,所述方法还包括:
    通过广播信号发送以下至少一项:
    多个CTS配置信息;其中,一个CTS配置信息对应一个索引;
    终端与CTS配置信息之间的映射规则。
  11. 根据权利要求10所述的方法,其中,一个终端对应一种或多个CTS配置信息。
  12. 根据权利要求9所述的方法,其中,所述发送请求发送RTS消息之后,所述方法还包括:
    所述网络侧设备接收所述目标CTS配置信息对应的终端,按照所述目标CTS配置信息反馈的CTS消息。
  13. 根据权利要求10所述的方法,其中,所述CTS配置信息包括以下至少一项:
    至少一个终端的CTS发送指示信息;
    至少一个终端的CTS资源指示信息。
  14. 根据权利要求1所述的方法,其中,所述第一信息包括需要反馈CTS消息的目标终端组的组标识。
  15. 根据权利要求7或14所述的方法,其中,所述发送请求发送RTS消息之前,所述方法还包括:
    所述网络侧设备通过以下至少一项,向终端发送分组信息:
    RRC配置信息、广播信号、下行控制信息DCI;
    其中,所述分组信息用于指示已划分的多个终端组,每个终端组对应一个组标识。
  16. 根据权利要求14所述的方法,其中,所述发送请求发送RTS消息之前,所述方法还包括:
    所述网络侧设备分别向不同的终端组发送CTS配置信息;其中,一个终端组对应一个CTS配置信息。
  17. 根据权利要求16所述的方法,其中,所述发送请求发送RTS消息之后,所述方法还包括:
    所述网络侧设备接收所述目标终端组中的终端,按照所述目标终端组对应的CTS配置信息发送的CTS消息。
  18. 一种消息接收方法,包括:
    终端接收网络侧设备发送的RTS消息;
    其中,所述RTS消息中包括第一信息,所述第一信息用于确定需要反馈CTS消息的终端。
  19. 根据权利要求18所述的方法,其中,所述第一信息包括目标终端组合信息对应的索引,所述目标终端组合信息包括需要反馈CTS消息的终端的相关信息。
  20. 根据权利要求19所述的方法,其中,所述接收网络侧设备发送的RTS消息之前,所述方法还包括:
    所述终端接收所述网络侧设备发送的RRC配置信息;
    其中,所述RRC配置信息包括多个终端组合信息,一个终端组合信息对应一个索引,一个终端组合信息包括至少一个终端的相关信息。
  21. 根据权利要求20所述的方法,其中,所述终端的相关信息包括以下至少一项:
    终端标识;
    终端的分组信息;
    CTS发送指示信息;
    CTS资源指示信息。
  22. 根据权利要求18所述的方法,其中,所述第一信息包括以下任意一项:
    需要反馈CTS消息的目标终端组的组标识;
    第一位图;其中,所述第一位图用于指示终端组是否需要反馈CTS消息;
    终端组的组标识,以及第二位图;其中,所述第二位图用于指示所述终端组中的终端是否需要反馈CTS消息;
    第三位图;其中,所述第三位图用于指示终端是否需要反馈CTS消息。
  23. 根据权利要求18所述的方法,其中,所述第一信息包括目标CTS配置信息对应的索引,所述目标CTS配置信息对应至少一个需要反馈CTS消息的终端。
  24. 根据权利要求23所述的方法,其中,所述接收网络侧设备发送的RTS消息之前,所述方法还包括:
    所述终端通过广播信号接收以下至少一项:
    多个CTS配置信息;其中,一个CTS配置信息对应一个索引;
    终端与CTS配置信息之间的映射规则。
  25. 根据权利要求18所述的方法,其中,所述第一信息包括需要反馈CTS消息的目标终端组的组标识。
  26. 根据权利要求22或25所述的方法,其中,所述接收网络侧设备发送的RTS消息之前,所述方法还包括:
    所述终端通过以下至少一项,接收所述网络侧设备发送的分组信息:
    RRC配置信息、广播信号、DCI;
    其中,所述分组信息用于指示已划分的多个终端组,每个终端组对应一个组标识。
  27. 根据权利要求25所述的方法,其中,所述接收网络侧设备发送的RTS消息之前,所述方法还包括:
    所述终端接收所述网络侧设备发送的所述终端所在的终端组对应的CTS配置信息。
  28. 一种消息发送装置,包括:
    发送模块,用于发送RTS消息;
    其中,所述RTS消息中包括第一信息,所述第一信息用于确定需要反馈CTS消息的终端。
  29. 根据权利要求28所述的装置,其中,所述第一信息为目标终端组合信息对应的索引,所述目标终端组合信息包括需要反馈CTS消息的终端的相关信息。
  30. 根据权利要求28所述的装置,其中,所述第一信息为以下任意一项:
    需要反馈CTS消息的目标终端组的组标识;
    第一位图;其中,所述第一位图用于指示终端组是否需要反馈CTS消息;
    终端组的组标识,以及第二位图;其中,所述第二位图用于指示所述终端组中的终端是否需要反馈CTS消息;
    第三位图;其中,所述第三位图用于指示终端是否需要反馈CTS消息。
  31. 根据权利要求28所述的装置,其中,所述第一信息为目标CTS配置信息对应的索引,所述目标CTS配置信息对应至少一个需要反馈CTS消息的终端。
  32. 一种消息接收装置,包括:
    第五接收模块,用于接收网络侧设备发送的RTS消息;
    其中,所述RTS消息中包括第一信息,所述第一信息用于确定需要反馈CTS消息的终端。
  33. 一种通信设备,包括处理器,存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求1至17中任一项所述的消息发送方法的步骤,或者实现如权利要求18至27任一项所述的消息接收方法的步骤。
  34. 一种可读存储介质,其中,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如权利要求1至17中任一项所述的消息发送方法的步骤,或者实现如权利要求18至27任一项所述的消息接收方法的步骤。
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