Method for transmitting and receiving control information, communication apparatus, and storage medium

Abstract

Provided are a method for transmitting and receiving control information, a communication apparatus, and a storage medium. The method for transmitting control information comprises: a first node generating first control information; transmitting the first control information to a second node on all or some resources of a physical data channel or on a dedicated resource of the first control information; according to feature information of the first control information and configuration information of the second node, determining whether feedback information from the second node is received after the first control information is transmitted, the feedback information being used for feeding back as to whether or not the second node successfully receives the first control information.

Description

Control information transmission and reception method, communication device and storage medium

[0001] This disclosure claims priority to Chinese patent application No. 202410269931.5, filed on March 8, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present disclosure relates to the field of communication technology, and in particular to a method for transmitting and receiving control information, a communication device, and a storage medium. Background Art

[0003] A physical data channel refers to a physical layer channel used to transmit user data in a wireless communication system, and is the main channel for data transmission in a wireless communication system. Physical data channels can include multiple types, such as the physical uplink shared channel (PUSCH) and the physical downlink shared channel (PDSCH). Taking the physical uplink shared channel as an example, the physical uplink shared channel is used to carry uplink user data and is a key component in a wireless communication system. In addition to data transmission, the physical uplink shared channel can also carry uplink control information (UCI), such as scheduling request (SR), hybrid automatic repeat request (HARQ) feedback information, channel state information (CSI), etc.

[0004] Summary of the Invention

[0005] In a first aspect, an embodiment of the present disclosure provides a method for transmitting control information, applied to a first node. The method for transmitting control information includes:

[0006] generating first control information;

[0007] transmitting the first control information to the second node on all or part of the resources of the physical data channel or on dedicated resources for the first control information;

[0008] According to the characteristic information of the first control information and the configuration information of the second node, it is determined whether feedback information from the second node is received after the first control information is transmitted; the feedback information is used to feed back whether the second node successfully receives the first control information.

[0009] In a second aspect, an embodiment of the present disclosure provides a method for receiving control information, which is applied to a second node. The method for receiving control information includes:

[0010] receiving first control information from the first node on all or part of the resources of the physical data channel or on dedicated resources for the first control information;

[0011] According to the characteristic information of the first control information and the configuration information of the second node, it is determined whether to send feedback information to the first node after transmitting the first control information; the feedback information is used to feed back whether the second node successfully receives the first control information.

[0012] In a third aspect, an embodiment of the present disclosure provides a communication device, applied to a first node, comprising a processing module and a sending module.

[0013] The processing module is used to generate first control information.

[0014] The sending module is configured to transmit the first control information to the second node on all or part of the resources of the physical data channel or on dedicated resources for the first control information.

[0015] The processing module is used to determine whether to receive feedback information from the second node after transmitting the first control information based on the characteristic information of the first control information and the configuration information of the second node, and the feedback information is used to feed back whether the second node successfully receives the first control information.

[0016] In a fourth aspect, an embodiment of the present disclosure provides another communication device, applied to a second node. The communication device includes a receiving module and a processing module:

[0017] The receiving module is configured to receive first control information from a first node on all or part of the resources of a physical data channel or on dedicated resources for the first control information.

[0018] The processing module is configured to determine whether to send feedback information to the first node after transmitting the first control information based on the characteristic information of the first control information and the configuration information of the second node. The feedback information is used to feedback whether the second node successfully receives the first control information.

[0019] In a fifth aspect, embodiments of the present disclosure further provide a communication device. The communication device includes: a memory and a processor; the memory and the processor are coupled; the memory is configured to store instructions executable by the processor; and when the processor executes the instructions, it performs the method provided in accordance with the first or second aspect.

[0020] In a sixth aspect, an embodiment of the present disclosure provides a computer program product comprising computer instructions, which, when executed on a computer, enables the computer to execute the method provided in the embodiment of the first or second aspect above.

[0021] In a seventh aspect, an embodiment of the present disclosure provides a computer program product, which includes computer program instructions, and when the computer program instructions are executed by a processor, implements the method provided in the embodiment of the first or second aspect above. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To more clearly illustrate the technical solutions of the present disclosure, the following briefly introduces the drawings required for use in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure, and those skilled in the art can also derive other drawings based on these drawings.

[0023] FIG1 is a schematic diagram of the architecture of a communication system according to some embodiments.

[0024] FIG2 is a schematic flow chart of a method for transmitting control information according to some embodiments.

[0025] FIG3 is a schematic diagram of resources of first control information according to some embodiments.

[0026] FIG4 is a schematic diagram of another resource of first control information according to some embodiments.

[0027] FIG5 is a schematic diagram of segmentation of first control information according to some embodiments.

[0028] FIG6 is a schematic flow chart of a method for receiving control information according to some embodiments.

[0029] FIG7 is a schematic diagram illustrating the composition of a communication device according to some embodiments.

[0030] FIG8 is a schematic diagram illustrating the composition of another communication device according to some embodiments.

[0031] FIG9 is a schematic structural diagram of a communication device according to some embodiments. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present disclosure.

[0033] In the description of this disclosure, unless otherwise specified, " / " means "or". For example, A / B can mean A or B. "And / or" in this article is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: only A, only B, and A and B. In addition, "at least one" means one or more, and "a plurality" means two or more. Expressions such as "first" and "second" do not limit the quantity and execution order, and expressions such as "first" and "second" do not necessarily limit them to be different.

[0034] It should be noted that in this disclosure, expressions such as "exemplarily" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described in this disclosure as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of expressions such as "exemplarily" or "for example" is intended to present the relevant concepts in a detailed manner.

[0035] In wireless communication systems, terminals can use all or part of the resources allocated to a physical uplink data channel to transmit uplink control information. This is known as multiplexing uplink control information on the physical uplink data channel. Multiplexing uplink control information and user data on the physical uplink data channel is a key technical step in wireless communication. It enables simultaneous transmission of control information and user data within a single transmission time, thereby improving the system's spectrum efficiency and data transmission capacity. However, currently, after transmitting uplink control information, the base station does not provide feedback on whether the uplink control information has been successfully received. This makes it impossible for terminals to accurately determine whether the base station has successfully received the uplink control information. Consequently, in situations where the uplink control information carries a large amount of content or has a strong correlation with subsequently transmitted uplink control information, the transmission efficiency of the uplink control information can be significantly reduced, leading to a decrease in user service quality. Therefore, determining whether control information has been successfully received to further improve its transmission efficiency is a technical problem that needs to be urgently addressed.

[0036] In view of this, an embodiment of the present disclosure provides a method for transmitting control information, comprising: a first node transmitting first control information to a second node over all or part of a physical data channel or over dedicated resources for the first control information, and determining, based on characteristic information of the first control information and configuration information of the second node, whether feedback information is received from the second node after transmitting the first control information, the feedback information being used to provide feedback on whether the second node successfully received the first control information. In this way, based on the feedback information, it is possible to determine whether the second node successfully received the control information sent by the first node, thereby increasing the transmission efficiency of the control information and improving the system performance of the wireless communication system.

[0037] Accordingly, an embodiment of the present disclosure also provides a method for receiving control information, the method comprising: a second node receiving first control information from a first node on all or part of a physical data channel or on dedicated resources for the first control information, and determining, based on characteristic information of the first control information and configuration information of the second node, whether to send feedback information to the first node after transmitting the first control information, the feedback information being used to provide feedback on whether the second node successfully received the first control information. In this way, the second node can provide feedback to the first node on whether the first control information was successfully received, thereby improving the transmission efficiency of the control information.

[0038] The technical solutions provided in the embodiments of the present disclosure can be applied to various mobile communication networks, for example, new radio (NR) mobile communication networks using fifth-generation mobile communication technology (5G), future mobile communication networks, or multiple communication convergence systems, etc., and the embodiments of the present disclosure are not limited to this.

[0039] FIG1 shows a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure. As shown in FIG1 , the communication system includes one or more first nodes 10 and one or more second nodes 20 .

[0040] In some embodiments, the first node 10 may be a terminal, which may be a device with wireless transceiver capabilities and may be deployed on land, including indoors or outdoors, handheld, wearable, or vehicle-mounted; may also be deployed on water (such as a ship); or may be deployed in the air (such as an airplane, balloon, or satellite). The terminal may be a mobile phone, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical care, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, and the like. The embodiments of the present disclosure do not limit the application scenarios. The terminal may sometimes also be referred to as a user, user equipment (UE), access terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal, mobile device, UE terminal, wireless communication equipment, UE agent or UE device, etc., but the embodiments of the present disclosure are not limited to this.

[0041] In some embodiments, the second node 20 may be a base station, configured to provide wireless access services to multiple terminals. For example, a base station provides a service coverage area (also referred to as a cell). Terminals within this area may communicate with the base station via wireless signals to receive the wireless access services provided by the base station.

[0042] In some embodiments, the base station can be a base station or an evolved base station (eNB or eNodeB) in long term evolution (LTE), long term evolution advanced (LTEA), a base station device in a 5G network, or a base station in a future communication system, etc. The base station may include various macro base stations, micro base stations, home base stations, wireless remote devices, reconfigurable intelligent surfaces (RIS), routers, wireless fidelity (WIFI) devices and other network side devices.

[0043] It should be noted that Figure 1 is only an exemplary framework diagram. The number of devices included in Figure 1 and the names of each device are not restricted. In addition to the devices shown in Figure 1, the communication system may also include other devices (such as core network devices).

[0044] The embodiments of the present disclosure do not limit the application scenarios. The system architecture and business scenarios described in the embodiments of the present disclosure are intended to more clearly illustrate the technical solutions of the embodiments of the present disclosure and do not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. Those skilled in the art will appreciate that with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present disclosure are equally applicable to similar technical problems.

[0045] As shown in FIG2 , the present disclosure provides a method for transmitting control information, which is applied to a first node. The method includes the following S101 to S103 .

[0046] In S101, first control information is generated.

[0047] Exemplarily, the first control information may be uplink control information or downlink control information.

[0048] In some embodiments, the first control information may include a scheduling request, hybrid automatic repeat request feedback information, channel state information, etc.

[0049] Taking the first node as a terminal and the second node as a base station as an example, the first control information is uplink control information. The scheduling request can be a request message sent by the first node to the second node, used to inform the second node that the first node needs resources for data transmission and to request the second node to allocate corresponding resources.

[0050] Hybrid automatic repeat request feedback information may include hybrid automatic repeat request acknowledgment (HARQ ACK) or hybrid automatic repeat request negative acknowledgment (HARQ NACK). Hybrid automatic repeat request feedback information is an important feedback information in the wireless communication process, used to provide feedback to the second node on whether the first node successfully received the data. For example, when the first node successfully receives the data, the first control information may include HARQ ACK information. Alternatively, when the first node fails to successfully receive the data, the first control information may include HARQ NACK information.

[0051] Channel state information (CSI) can be used to describe the characteristics of the channel in a communication link. CSI is an important concept in wireless communications, and a second node can perform communication link scheduling and transmission optimization based on this CSI. CSI can include various types of information, such as channel quality indication (CQI), precoding matrix indication (PMI), and rank indication (RI).

[0052] In some embodiments, when resource scheduling, data transmission confirmation, feedback of channel state information, or sending of measurement reports are required, the first node may generate corresponding first control information based on the type of control information currently required to be sent.

[0053] In S102, first control information is transmitted to the second node on all or part of the resources of the physical data channel or on dedicated resources for the first control information.

[0054] The dedicated resource is a resource configured by the second node to the first node and dedicated to transmitting the first control information.

[0055] In some examples, as shown in FIG3 , the first node may transmit the first control information to the second node on partial resources (20 subcarriers) of the physical uplink data channel (72 subcarriers) or on dedicated resources (20 subcarriers) for the first control information.

[0056] In some embodiments, after the time interval of the physical data channel used to transmit the first control information, the physical data channel also includes M time intervals for repeatedly transmitting data, and the first node may also repeatedly transmit the first control information in all or part of these M time intervals.

[0057] Exemplarily, as shown in Figure 4, taking the first node as the terminal and the second node as the base station as an example, the physical uplink data channel (72 subcarriers) transmits the first control information (occupying 20 subcarriers) in time slot 1. After time slot 1, the physical uplink data channel also includes the above-mentioned M time intervals of time slot 2, time slot 3 and time slot 4 for repeated transmission of uplink data. At this time, the first node can repeatedly transmit the first control information in time slot 2, time slot 3 and time slot 4.

[0058] In some embodiments, the first node may also transmit all or part of the first control information on all or part of the resources of the physical control channel.

[0059] Exemplarily, taking the first node as a terminal and the second node as a base station as an example, the first node can transmit the first control information through a physical uplink control channel and a physical uplink data channel. In one example, the first node can transmit the entire content of the first control information through both the physical uplink control channel and the physical uplink data channel, or transmit the same partial content of the first control information. In another example, the first node can also transmit different parts of the first control information through the physical uplink control channel and the physical uplink data channel respectively. In this way, transmitting the first control information through the physical uplink control channel and the physical uplink data channel can increase the probability of successful reception of the first control information and reduce the transmission delay of the first control information.

[0060] In addition, the physical uplink control channel and the physical uplink data channel may be in the same time interval or in different time intervals.

[0061] In some embodiments, the transmission power of the first control information per unit resource is greater than or equal to the transmission power of the physical data channel per unit resource. For example, the transmission power of the first control information per subcarrier is greater than or equal to the transmission power of the physical data channel per subcarrier. In this way, the transmission efficiency of the first control information can be higher, thereby enabling the second node to obtain the first control information as quickly as possible.

[0062] In some embodiments, the first node may divide the first control information into X segments, wherein the transmission power of at least one segment of the X segments per unit resource is greater than or equal to the transmission power of the other segments per unit resource, and X is a positive integer. In addition, the contents of the X segments of the first control information may be completely different or partially the same. For example, as shown in FIG5 , the X segments may include at least segment 1 and segment 2, and the contents of segment 1 and segment 2 may be completely different, that is, there is no overlapping part. Alternatively, the X segments may include at least segment 3 and segment 4, and the contents of segment 3 and segment 4 may be partially the same, that is, the overlapping part between segment 3 and segment 4 in FIG5 .

[0063] It should be noted that the transmission power per unit resource of the segment corresponding to the important content in the first control information may be greater than the transmission power per unit resource of other segments, thereby enabling the second node to quickly obtain the important content in the first control information.

[0064] In S103, it is determined whether feedback information is received from the second node after the first control information is transmitted, based on the characteristic information of the first control information and the configuration information of the second node.

[0065] The feedback information is used to feedback whether the second node successfully receives the first control information.

[0066] In some embodiments, the feedback information may satisfy any of the following conditions:

[0067] The feedback information is used to feed back that the second node successfully receives part of the first control information;

[0068] The feedback information is used to feed back the second node that it has successfully received all the contents of the first control information;

[0069] The feedback information is used to feed back the partial content of the first control information that the second node failed to receive successfully;

[0070] The feedback information is used to feed back that the second node failed to successfully receive the entire content of the first control information.

[0071] In some embodiments, the characteristic information of the first control information includes at least one of the following: a transmission mode of the first control information and a content type of the first control information. For example, the transmission mode of the first control information may include an aperiodic transmission mode.

[0072] In some embodiments, the first node may determine to receive feedback information from the second node when any of the following conditions is met:

[0073] The transmission mode of the first control information is a non-periodic transmission mode;

[0074] The first control information includes channel state information generated based on a preset generation method;

[0075] The first control information includes delayed hybrid automatic repeat request feedback information;

[0076] The configuration information of the second node indicates that the second node needs to send feedback information to the first node;

[0077] Other control information subsequently sent by the first node is associated with the first control information.

[0078] The above-mentioned pre-set generation method may be pre-agreed between the first node and the second node, and the generation method may be a linear generation method or a non-linear generation method.

[0079] Exemplarily, the association relationship between other control information subsequently sent by the first node and the first control information may include: the first control information may indicate whether other control information subsequently sent by the first node exists, or whether the control information needs to be sent, and the first control information may be combined with other control information subsequently sent by the first node to constitute information or content that can be obtained by the second node. For example, the first control information may be combined with other control information subsequently sent by the first node to constitute channel state information that can be obtained by the second node, etc.

[0080] In some embodiments, the first node may determine to receive feedback information from the second node within N time intervals after transmitting the first control information, where N is a positive integer.

[0081] In one example, when the second node determines that it needs to send the above-mentioned feedback information for the first control information to the first node, and the second node successfully receives the first control information, the second node can send feedback information to the first node within N time intervals after transmitting the first control information, and the feedback information is used to indicate that the first control information is successfully received.

[0082] In some embodiments, if no feedback information is received within the first time interval, it is determined that the second node successfully receives the first control information.

[0083] The first time interval is configured by default or obtained through negotiation between the second node and the first node. For example, the first time interval may be 1 time slot, 2 time slots, N time slots, or other possible time intervals.

[0084] For example, if the second node successfully receives the first control information, it may not send the feedback information to the first node within the first time interval. Accordingly, if the first node does not receive the feedback information within the first time interval, it can be determined that the second node successfully received the first control information. In this way, the second node does not need to transmit feedback information to the first node, and the first node does not need to receive feedback information, thereby reducing system overhead.

[0085] In some embodiments, if no feedback information is received within the first time interval, it is determined that the second node has successfully received the first control information.The first node may also send other control information associated with the first control information to the second node.

[0086] In some embodiments, the absolute time length of the time interval in the embodiments of the present disclosure may also be a default configuration or obtained through negotiation between the second node and the first node.

[0087] In another example, when the second node determines that it needs to send the above-mentioned feedback information for the first control information to the first node, and the second node fails to successfully receive the first control information, the second node can send feedback information to the first node within N time intervals after transmitting the first control information, and the feedback information is used to indicate that the first control information was not successfully received.

[0088] In some embodiments, when the feedback information is received within the second time interval, it is determined that the second node has not successfully received the first control information.

[0089] The second time interval is configured by default or obtained through negotiation between the second node and the first node. For example, the second time interval may be 1 time slot, 2 time slots, N time slots, or other possible time intervals.

[0090] In some embodiments, the feedback information may be carried by at least one of radio resource configuration signaling, media access control signaling, and downlink control information.

[0091] In some embodiments, when the first control information needs to be retransmitted, the retransmission and initial transmission of the first control information satisfy at least one of the following:

[0092] The transmission priority of the retransmitted first control information is greater than or equal to the transmission priority of the initially transmitted first control information;

[0093] The code rate used for retransmitting the first control information is less than or equal to the code rate used for initially transmitting the first control information;

[0094] The number of resources used for retransmitting the first control information is greater than or equal to the number of resources used for initially transmitting the first control information;

[0095] The number of bits corresponding to the modulation symbols of the retransmitted first control information is less than or equal to the number of bits corresponding to the modulation symbols of the initially transmitted first control information.

[0096] For example, the transmission priority of the first control information transmitted initially is A, the transmission priority of the retransmitted first control information is B, and the transmission priority of the reference information is C. The reference information was attempted to be transmitted in both the initial transmission and the retransmission of the first control information. A's transmission priority is lower than C's. Without considering B, the reference information needs to be prioritized for resource acquisition and transmission. However, if B's ​​transmission priority is higher than C's, the retransmitted first control information can be prioritized for resource acquisition and transmission. In this way, the first control information can be transmitted preferentially, allowing the second node to obtain the first control information as quickly as possible.

[0097] In addition, the code rate used for retransmitting the first control information is less than or equal to the code rate used for initially transmitting the first control information, the number of resources used for retransmitting the first control information is greater than or equal to the number of resources used for initially transmitting the first control information, and the number of bits corresponding to the modulation symbols of the retransmitted first control information is less than or equal to the number of bits corresponding to the modulation symbols of the initially transmitted first control information. All of these can make the transmission of the first control information more efficient, thereby allowing the second node to obtain the first control information as soon as possible.

[0098] In some embodiments, when the first node needs to retransmit the first control information, the resources used to retransmit the first control information include dedicated resources configured by the second node for retransmitting the first control information or all or part of the resources of the physical data channel.

[0099] In some embodiments, the first node receives feedback information from the second node, and the feedback information is used to feedback that the second node successfully receives the first control information. Thus, the first node may also send other control information associated with the first control information to the second node.

[0100] Exemplarily, the association relationship here may include that the first control information can indicate whether other control information with an association relationship exists, or whether the control information needs to be sent, and the first control information can be combined with other control information with an association relationship to constitute information or content that can be obtained by the second node, etc.

[0101] In some embodiments, the first node receives feedback information from the second node, the feedback information being used to report that the second node failed to successfully receive the first control information. The first node may also retransmit all or part of the first control information to the second node.

[0102] Exemplarily, when the first node receives a first control information sent to the second node for feedback that the second node failed to successfully receive the information, the first node may retransmit the entire content of the first control information to the second node, or the first node may only retransmit the portion of the first control information that the second node failed to successfully receive to the second node.

[0103] In some embodiments, the first node may further receive second control information in the first format from the second node, and / or the second node may receive third control information in the first format or the second format from the second node.

[0104] The second control information in the first format carries description information of the physical uplink data channel. Furthermore, the control information in the second format carries description information of the physical uplink data channel or the physical downlink data channel. Thus, the third control information in the first format carries feedback information and description information of the physical uplink data channel, and the third control information in the second format carries feedback information and description information of the physical uplink data channel or the physical downlink data channel. The feedback information is used to provide feedback on whether the second node successfully received the first control information.

[0105] Based on the technical solution provided in the present disclosure, after the first node transmits control information to the second node, it can determine whether feedback information about the control information is received from the second node, and then based on the feedback information, it can determine whether the second node has successfully received the control information sent by the first node, so as to increase the transmission efficiency of the control information and improve the system performance of the wireless communication system.

[0106] In some embodiments, the present disclosure further provides a method for receiving control information, which is applied to a second node. As shown in FIG6 , the method further includes the following S201 to S202 .

[0107] In S201, first control information is received from a first node on all or part of resources of a physical data channel or on dedicated resources for the first control information.

[0108] In some embodiments, the dedicated resource is a resource configured by the second node to the first node and dedicated to transmitting the first control information.

[0109] Exemplarily, the first control information may be uplink control information or downlink control information.

[0110] In some embodiments, the first control information may include a scheduling request, hybrid automatic repeat request feedback information, channel state information, etc.

[0111] In some embodiments, the second node may receive all or part of the first control information on all or part of the resources of the physical control channel.

[0112] In some embodiments, after the time interval of the physical data channel used to transmit the first control information, the physical data channel also includes M time intervals for repeatedly transmitting data, and the second node can also repeatedly receive the first control information in all or part of the M time intervals.

[0113] In some embodiments, the transmission power of the first control information on a unit resource is greater than or equal to the transmission power of the physical data channel on a unit resource.

[0114] In some embodiments, the first control information may be divided into X segments, wherein the transmission power per unit resource of at least one of the X segments is greater than or equal to the transmission power per unit resource of the other segments, where X is a positive integer. Furthermore, the contents of the X segments of the first control information may be completely different or partially identical.

[0115] In S202, it is determined whether to send feedback information to the first node after transmitting the first control information according to the characteristic information of the first control information and the configuration information of the second node.

[0116] The feedback information is used to feedback whether the second node successfully receives the first control information.

[0117] In some embodiments, the feedback information satisfies any of the following:

[0118] The feedback information is used to feed back that the second node successfully receives part of the first control information;

[0119] The feedback information is used to feed back the second node that it has successfully received all the contents of the first control information;

[0120] The feedback information is used to feed back the partial content of the first control information that the second node failed to receive successfully;

[0121] The feedback information is used to feed back that the second node failed to successfully receive the entire content of the first control information.

[0122] In some embodiments, the characteristic information of the first control information includes at least one of the following: a transmission mode of the first control information and a content type of the first control information. In one example, the transmission mode of the first control information is an aperiodic transmission mode.

[0123] Exemplarily, the second node may also determine whether to send feedback information to the first node after receiving the first control information based on the characteristic information of the first control information and the configuration information of the second node.

[0124] In some embodiments, the second node needs to send feedback information to the first node when any of the following conditions is met:

[0125] The transmission mode of the first control information is a non-periodic transmission mode;

[0126] The first control information includes channel state information generated based on a preset generation method;

[0127] The first control information includes delayed hybrid automatic repeat request feedback information;

[0128] The configuration information of the second node indicates that the second node needs to send feedback information to the first node;

[0129] Other control information subsequently sent by the first node is associated with the first control information.

[0130] In some embodiments, when other control information subsequently sent by the first node is received and has an association relationship with the first control information, the second node determines that feedback information needs to be sent to the first node.

[0131] In some embodiments, the second node may send feedback information to the first node, where the feedback information is used to provide feedback that the second node successfully received the first control information. Furthermore, the second node may receive other control information associated with the first control information from the first node.

[0132] In some embodiments, the second node may further send feedback information to the first node, the feedback information being used to feedback that the second node failed to successfully receive the first control information. Furthermore, the second node may receive all or part of the first control information retransmitted by the first node.

[0133] In some embodiments, the first node needs to retransmit the first control information, and accordingly, the second node can re-receive the first control information. The retransmission and the initial transmission of the first control information meet at least one of the following conditions:

[0134] The transmission priority of the retransmitted first control information is greater than or equal to the transmission priority of the initially transmitted first control information;

[0135] The code rate used for retransmitting the first control information is less than or equal to the code rate used for initially transmitting the first control information;

[0136] The number of resources used for retransmitting the first control information is greater than or equal to the number of resources used for initially transmitting the first control information;

[0137] The number of bits corresponding to the modulation symbols of the retransmitted first control information is less than or equal to the number of bits corresponding to the modulation symbols of the initially transmitted first control information.

[0138] In some embodiments, the resources used for retransmitting the first control information include dedicated resources configured by the second node for retransmitting the first control information or all or part of the resources of a physical data channel.

[0139] In some embodiments, if the second node successfully receives the first control information, no feedback information is sent to the second node within the first time interval.

[0140] The first time interval is configured by default or obtained through negotiation between the second node and the first node.

[0141] Accordingly, in the case where no feedback information is received within the first time interval, the first node may determine that the second node has successfully received the first control information.

[0142] In some embodiments, if the second node fails to successfully receive the first control information, feedback information is sent to the first node within a second time interval.

[0143] The second time interval is configured by default or obtained through negotiation between the second node and the first node.

[0144] Accordingly, when the feedback information is received within the second time interval, it is determined that the second node has not successfully received the first control information.

[0145] In some embodiments, the second node may further send second control information in the first format to the first node; and / or the second node may send third control information in the first format or the second format to the first node.

[0146] The second control information carries description information of the physical uplink data channel. The third control information in the first format carries feedback information and description information of the physical uplink data channel, and the third control information in the second format carries feedback information and description information of the physical uplink data channel or description information of the physical downlink data channel.

[0147] In addition, for the detailed introduction of S201 to S202 , reference can be made to the related description of S101 to S103 above, which will not be repeated here.

[0148] Based on the technical solution provided by the present disclosure, when transmission control information is received from a first node, it is possible to determine whether feedback information about the control information is sent to the first node, so that the first node can determine whether the control information is successfully received, thereby increasing the transmission efficiency of the control information and improving the system performance of the wireless communication system.

[0149] It is understandable that, in order to implement the above functions, the first node or the second node includes a hardware structure and / or software module corresponding to the execution of each function. It should be easily appreciated by those skilled in the art that, in combination with the algorithm steps of each example described in the embodiments of the present disclosure, the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in a hardware or computer software driven hardware manner depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present disclosure.

[0150] The embodiment of the present disclosure can divide the functional modules of the first node or the second node according to the above-mentioned method embodiment. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one functional module. The above-mentioned integrated module can be implemented in the form of hardware or software. It should be noted that the division of modules in the embodiment of the present disclosure is schematic and is only a logical function division. There may be other division methods in actual implementation. The following is an example of dividing each functional module corresponding to each function.

[0151] Figure 7 is a schematic diagram of the components of a communication device provided by an embodiment of the present disclosure. The communication device is applied to a first node and can execute the control information transmission method provided by the above method embodiment. As shown in Figure 7, the communication device 70 includes: a processing module 701, a sending module 702, and a receiving module 703.

[0152] The processing module 701 is configured to generate first control information.

[0153] The sending module 702 is configured to transmit the first control information to the second node on all or part of the resources of the physical data channel or on dedicated resources for the first control information.

[0154] The processing module 701 is used to determine whether feedback information is received from the second node after transmitting the first control information based on the characteristic information of the first control information and the configuration information of the second node, and the feedback information is used to feedback whether the second node successfully receives the first control information.

[0155] In some embodiments, the characteristic information of the first control information includes at least one of the following: a transmission mode of the first control information, and a content type of the first control information.

[0156] In some embodiments, the transmission mode of the first control information is a non-periodic transmission mode.

[0157] In some embodiments, after the time interval of the physical data channel used to transmit the first control information, the physical data channel also includes M time intervals for repeatedly transmitting data, and the sending module 702 is further used to repeatedly transmit the first control information in all or part of the M time intervals.

[0158] In some embodiments, the receiving module 703 is configured to receive second control information in a first format from the second node, the second control information carrying description information of a physical uplink data channel; and / or receive third control information in a first format or a second format from the second node. The third control information in the first format carries feedback information and description information of the physical uplink data channel, and the third control information in the second format carries feedback information and description information of the physical uplink data channel or description information of the physical downlink data channel.

[0159] In some embodiments, when other control information subsequently sent by the first node is associated with the first control information, the second node needs to provide feedback on whether the first control information is successfully received.

[0160] In some embodiments, when the first control information needs to be retransmitted, the retransmission and initial transmission of the first control information satisfy at least one of the following:

[0161] The transmission priority of the retransmitted first control information is greater than or equal to the transmission priority of the initially transmitted first control information;

[0162] The code rate used for retransmitting the first control information is less than or equal to the code rate used for initially transmitting the first control information;

[0163] The number of resources used for retransmitting the first control information is greater than or equal to the number of resources used for initially transmitting the first control information;

[0164] The number of bits corresponding to the modulation symbols of the retransmitted first control information is less than or equal to the number of bits corresponding to the modulation symbols of the initially transmitted first control information.

[0165] In some embodiments, the resources used for retransmitting the first control information include dedicated resources configured by the second node for retransmitting the first control information or all or part of the resources of a physical data channel.

[0166] In some embodiments, the feedback information satisfies any of the following:

[0167] The feedback information is used to feed back that the second node successfully receives part of the first control information;

[0168] The feedback information is used to feed back the second node that it has successfully received all the contents of the first control information;

[0169] The feedback information is used to feed back the partial content of the first control information that the second node failed to receive successfully;

[0170] The feedback information is used to feed back that the second node failed to successfully receive the entire content of the first control information.

[0171] In some embodiments, the receiving module 703 is further configured to receive feedback information from the second node, the feedback information being used to provide feedback that the second node successfully received the first control information. The sending module 702 is further configured to send other control information associated with the first control information to the second node.

[0172] In some embodiments, the receiving module 703 is further configured to receive feedback information from the second node, the feedback information being used to provide feedback that the second node has failed to successfully receive the first control information. The sending module 702 is further configured to retransmit all or part of the first control information to the second node.

[0173] In some embodiments, when the first control information is transmitted to the second node on all or part of the resources of the physical data channel, the receiving module 703 is further used to transmit all or part of the content of the first control information on all or part of the resources of the physical control channel.

[0174] In some embodiments, the dedicated resource is a resource configured by the second node to the first node and dedicated to transmitting the first control information.

[0175] In some embodiments, the processing module 701 is further configured to determine that the second node successfully receives the first control information when no feedback information is received within a first time interval, and the first time interval is a default configuration or obtained through negotiation between the second node and the first node.

[0176] In some embodiments, the processing module 701 is further configured to determine that the second node has not successfully received the first control information when feedback information is received within a second time interval, and the second time interval is a default configuration or obtained through negotiation between the second node and the first node.

[0177] In some embodiments, the transmission power of the first control information on a unit resource is greater than or equal to the transmission power of the physical data channel on a unit resource.

[0178] In some embodiments, the first control information is divided into X segments, and the transmission power per unit resource of at least one segment among the X segments is greater than or equal to the transmission power per unit resource of the other segments, where X is a positive integer.

[0179] For a more detailed description of the above-mentioned processing module 701, sending module 702 and receiving module 703, as well as a more detailed description of each technical feature and a description of the beneficial effects, please refer to the above-mentioned corresponding method embodiment part, which will not be repeated here.

[0180] FIG8 is a schematic diagram of another communication device provided by an embodiment of the present disclosure, which is applied to a second node and can execute the control information receiving method provided by the above method embodiment. As shown in FIG8 , the communication device 80 includes: a receiving module 801, a processing module 802, and a sending module 803.

[0181] The receiving module 801 is configured to receive first control information from a first node on all or part of the resources of a physical data channel or on dedicated resources for the first control information.

[0182] The processing module 802 is configured to determine whether to send feedback information to the first node after transmitting the first control information based on the characteristic information of the first control information and the configuration information of the second node. The feedback information is used to feedback whether the second node successfully receives the first control information.

[0183] In some embodiments, the characteristic information of the first control information includes at least one of the following: a transmission mode of the first control information, and a content type of the first control information.

[0184] In some embodiments, the transmission mode of the first control information is a non-periodic transmission mode.

[0185] In some embodiments, after the time interval for transmitting the first control information on the physical data channel, the physical data channel further includes M time intervals for repeatedly transmitting data. The receiving module 801 is further configured to repeatedly receive the first control information in all or part of the M time intervals.

[0186] In some embodiments, the sending module 803 is used to send second control information in a first format to the first node, the second control information carrying description information of the physical uplink data channel; and / or, to send third control information in a first format or a second format to the first node; the third control information in the first format carries feedback information and description information of the physical uplink data channel, and the third control information in the second format carries feedback information, as well as description information of the physical uplink data channel or description information of the physical downlink data channel.

[0187] In some embodiments, the processing module 802 is configured to determine that feedback information needs to be sent to the first node when other control information subsequently sent by the first node is associated with the first control information.

[0188] In some embodiments, when the first control information needs to be retransmitted, the retransmission and initial transmission of the first control information satisfy at least one of the following:

[0189] The transmission priority of the retransmitted first control information is greater than or equal to the transmission priority of the initially transmitted first control information;

[0190] The code rate used for retransmitting the first control information is less than or equal to the code rate used for initially transmitting the first control information;

[0191] The number of resources used for retransmitting the first control information is greater than or equal to the number of resources used for initially transmitting the first control information;

[0192] The number of bits corresponding to the modulation symbols of the retransmitted first control information is less than or equal to the number of bits corresponding to the modulation symbols of the initially transmitted first control information.

[0193] In some embodiments, the resources used for retransmitting the first control information include dedicated resources configured by the second node for retransmitting the first control information or all or part of the resources of a physical data channel.

[0194] In some embodiments, the feedback information satisfies any of the following:

[0195] The feedback information is used to feed back that the second node successfully receives part of the first control information;

[0196] The feedback information is used to feed back the second node that it has successfully received all the contents of the first control information;

[0197] The feedback information is used to feed back the partial content of the first control information that the second node failed to receive successfully;

[0198] The feedback information is used to feed back that the second node failed to successfully receive the entire content of the first control information.

[0199] In some embodiments, the sending module 803 is further configured to send feedback information to the first node, the feedback information being used to provide feedback that the second node has successfully received the first control information. The receiving module 801 is further configured to receive other control information associated with the first control information from the first node.

[0200] In some embodiments, the sending module 803 is further configured to send feedback information to the first node, the feedback information being used to feedback that the second node failed to successfully receive the first control information. The receiving module 801 is further configured to receive all or part of the first control information retransmitted by the first node.

[0201] In some embodiments, when the first control information is transmitted to the second node on all or part of the resources of the physical data channel, the receiving module 801 is further used to receive all or part of the content of the first control information on all or part of the resources of the physical control channel.

[0202] In some embodiments, the dedicated resource is a resource configured by the second node to the first node and dedicated to transmitting the first control information.

[0203] In some embodiments, when the second node successfully receives the first control information, no feedback information is sent to the second node within a first time interval, where the first time interval is a default configuration or obtained through negotiation between the second node and the first node.

[0204] In some embodiments, when the second node fails to successfully receive the first control information, the sending module 803 is further configured to send feedback information to the second node within a second time interval, where the second time interval is a default configuration or obtained through negotiation between the second node and the first node.

[0205] In some embodiments, the transmission power of the first control information on a unit resource is greater than or equal to the transmission power of the physical data channel on a unit resource.

[0206] In some embodiments, the first control information is divided into X segments, and the transmission power per unit resource of at least one segment among the X segments is greater than or equal to the transmission power per unit resource of the other segments, where X is a positive integer.

[0207] For a more detailed description of the above-mentioned receiving module 801, processing module 802 and sending module 803, as well as a more detailed description of each technical feature and a description of the beneficial effects, please refer to the above-mentioned corresponding method embodiment part, which will not be repeated here.

[0208] In the case of implementing the functions of the above-mentioned integrated modules in hardware, the embodiments of the present disclosure provide another structure of the communication device involved in the above-mentioned embodiments. As shown in Figure 9, the communication device 90 includes: a processor 902 and a bus 904. In some embodiments, the communication device may also include a memory 901; in some embodiments, the communication device may also include a communication interface 903.

[0209] Processor 902 may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of this disclosure. Processor 902 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Processor 902 may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of this disclosure. Processor 902 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

[0210] The communication interface 903 (also called a transmitter) is used to connect to other devices via a communication network, which may be Ethernet, a wireless access network, a wireless local area network (WLAN), or the like.

[0211] The memory 901 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0212] As an implementation, the memory 901 may exist independently of the processor 902. The memory 901 may be connected to the processor 902 via a bus 904 and used to store instructions or program codes. When the processor 902 calls and executes the instructions or program codes stored in the memory 901, the method provided in the embodiment of the present disclosure can be implemented.

[0213] In another implementation, the memory 901 may also be integrated with the processor 902 .

[0214] Bus 904 can be an Extended Industry Standard Architecture (EISA) bus, etc. Bus 904 can be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, FIG9 shows only one thick line, but this does not mean that there is only one bus or only one type of bus.

[0215] Through the description of the above implementation methods, technical personnel in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be distributed and completed by different functional modules as needed, that is, the internal structure of the equipment or device is divided into different functional modules to complete all or part of the functions described above.

[0216] The present disclosure also provides a computer-readable storage medium. All or part of the processes in the above-mentioned method embodiments can be completed by computer instructions to instruct the relevant hardware, and the program can be stored in the above-mentioned computer-readable storage medium. When the program is executed, it may include the processes of the above-mentioned method embodiments. The computer-readable storage medium can be the memory of any of the above-mentioned embodiments. The above-mentioned computer-readable storage medium can also be an external storage device of the above-mentioned device or apparatus, such as a plug-in hard disk, a smart memory card (smart media card, SMC), a secure digital (secure digital, SD) card, a flash card (flash card), etc. equipped on the above-mentioned device or apparatus. Further, the above-mentioned computer-readable storage medium can also include both the internal storage unit of the above-mentioned device or apparatus and an external storage device. The above-mentioned computer-readable storage medium is used to store the above-mentioned computer program and other programs and data required by the above-mentioned device or apparatus. The above-mentioned computer-readable storage medium can also be used to temporarily store data that has been output or is to be output. The readable storage medium includes a non-transitory computer-readable storage medium.

[0217] An embodiment of the present disclosure further provides a computer program product, which includes a computer program. When the computer program product is run on a computer, the computer is enabled to execute any one of the methods provided in the above embodiments.

[0218] Although the present disclosure is described herein in conjunction with various embodiments, in the process of implementing the disclosure for which protection is sought, those skilled in the art may understand and implement other variations of the disclosed embodiments by reviewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "one" or "an" does not exclude multiple components. A single processor or other unit may implement several functions listed in the claims. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0219] Although the present disclosure has been described with reference to detailed features and embodiments thereof, it will be apparent that various modifications and combinations may be made thereto without departing from the spirit and scope of the present disclosure. Accordingly, this specification and the drawings are merely illustrative of the present disclosure as defined by the appended claims and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of the present disclosure. Obviously, those skilled in the art may make various modifications and variations to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, the present disclosure is intended to encompass such modifications and variations as would fall within the scope of the claims of the present disclosure and their equivalents.

[0220] The above is only a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or replacements within the technical scope disclosed in the present disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A method for transmitting control information, wherein: The method is applied to a first node and comprises: generating first control information; transmitting the first control information to the second node on all or part of the resources of a physical data channel or on dedicated resources for the first control information; Determine whether to receive feedback information from the second node after transmitting the first control information based on the characteristic information of the first control information and the configuration information of the second node; wherein the feedback information is used to feedback whether the second node successfully receives the first control information.

2. The method according to claim 1, wherein The characteristic information of the first control information includes at least one of the following: a transmission mode of the first control information and a content type of the first control information.

3. The method according to claim 2, wherein: The transmission mode of the first control information is a non-periodic transmission mode.

4. The method according to claim 1, wherein After the time interval of the physical data channel for transmitting the first control information, the physical data channel further includes M time intervals for repeatedly transmitting data; the method further includes: The first control information is repeatedly transmitted in all or part of the M time intervals.

5. The method according to claim 1, further comprising: receiving second control information in a first format from the second node, where the second control information carries description information of a physical uplink data channel; and / or Receive third control information in the first format or the second format from the second node; the third control information in the first format carries the feedback information and description information of the physical uplink data channel, and the third control information in the second format carries the feedback information, and description information of the physical uplink data channel or description information of the physical downlink data channel.

6. The method according to claim 1, wherein In a case where other control information subsequently sent by the first node is associated with the first control information, the second node needs to provide feedback on whether the first control information is successfully received.

7. The method according to claim 1, wherein In the case where the first control information needs to be retransmitted, the retransmission and initial transmission of the first control information meet at least one of the following conditions: The transmission priority of the retransmission of the first control information is greater than or equal to the transmission priority of the initial transmission of the first control information; A code rate used for retransmitting the first control information is less than or equal to a code rate used for initially transmitting the first control information; The number of resources used for retransmitting the first control information is greater than or equal to the number of resources used for initially transmitting the first control information; The number of bits corresponding to the modulation symbols of the retransmitted first control information is less than or equal to the number of bits corresponding to the modulation symbols of the initially transmitted first control information.

8. The method according to claim 1, wherein The resources used for retransmitting the first control information include dedicated resources configured by the second node for retransmitting the first control information or all or part of the resources of the physical data channel.

9. The method according to claim 1, wherein The feedback information satisfies any of the following conditions: The feedback information is used to feed back that the second node successfully receives part of the first control information; The feedback information is used to feedback that the second node successfully receives all the content of the first control information; The feedback information is used to feed back the partial content of the first control information that the second node failed to successfully receive; The feedback information is used to feed back that the second node failed to successfully receive all the content of the first control information.

10. The method according to claim 1, further comprising: receiving feedback information from the second node, where the feedback information is used to provide feedback that the second node successfully receives the first control information; Sending other control information associated with the first control information to the second node.

11. The method according to claim 1 , further comprising: receiving feedback information from the second node, where the feedback information is used to provide feedback that the second node has failed to successfully receive the first control information; Retransmit all or part of the first control information to the second node.

12. The method according to claim 1, wherein In the case where the first control information is transmitted to the second node over all or part of the resources of the physical data channel, the method further includes: All or part of the first control information is transmitted on all or part of the resources of the physical control channel.

13. The method according to claim 1, wherein The dedicated resource is a resource configured by the second node to the first node and dedicated to transmitting the first control information.

14. The method according to claim 1, further comprising: If the feedback information is not received within a first time interval, it is determined that the second node has successfully received the first control information, wherein the first time interval is a default configuration or obtained through negotiation between the second node and the first node.

15. The method according to claim 1, further comprising: In a case where the feedback information is received within a second time interval, it is determined that the second node has not successfully received the first control information, wherein the second time interval is a default configuration or obtained through negotiation between the second node and the first node.

16. The method according to claim 1, wherein The transmission power of the first control information on the unit resource is greater than or equal to the transmission power of the physical data channel on the unit resource.

17. The method according to claim 1, wherein The first control information is divided into X segments, and the transmission power of at least one segment of the X segments on a unit resource is greater than or equal to the transmission power of other segments on a unit resource, where X is a positive integer.

18. A method for receiving control information, wherein: The method is applied to the second node and comprises: receiving the first control information from the first node on all or part of the resources of the physical data channel or on dedicated resources for the first control information; Determine whether to send feedback information to the first node after transmitting the first control information based on the characteristic information of the first control information and the configuration information of the second node; wherein the feedback information is used to feedback whether the second node successfully receives the first control information.

19. The method according to claim 18, wherein The characteristic information of the first control information includes at least one of the following: a transmission mode of the first control information and a content type of the first control information.

20. The method according to claim 19, wherein The transmission mode of the first control information is a non-periodic transmission mode.

21. The method according to claim 18, wherein After the time interval of the physical data channel for transmitting the first control information, the physical data channel further includes M time intervals for repeatedly transmitting data; the method further includes: The first control information is repeatedly received in all or part of the M time intervals.

22. The method of claim 18, further comprising: Sending second control information in a first format to the first node, where the second control information carries description information of a physical uplink data channel; and / or Sending third control information in the first format or the second format to the first node; the third control information in the first format carries the feedback information and description information of the physical uplink data channel, and the third control information in the second format carries the feedback information, and description information of the physical uplink data channel or description information of the physical downlink data channel.

23. The method of claim 18, further comprising: In a case where other control information subsequently sent by the first node is received and has an association relationship with the first control information, it is determined that the feedback information needs to be sent to the first node.

24. The method according to claim 18, wherein In the case where the first control information needs to be retransmitted, the retransmission and initial transmission of the first control information meet at least one of the following conditions: The transmission priority of the retransmission of the first control information is greater than or equal to the transmission priority of the initial transmission of the first control information; A code rate used for retransmitting the first control information is less than or equal to a code rate used for initially transmitting the first control information; The number of resources used for retransmitting the first control information is greater than or equal to the number of resources used for initially transmitting the first control information; The number of bits corresponding to the modulation symbols of the retransmitted first control information is less than or equal to the number of bits corresponding to the modulation symbols of the initially transmitted first control information.

25. The method according to claim 18, wherein The resources used for retransmitting the first control information include dedicated resources configured by the second node for retransmitting the first control information or all or part of the resources of the physical data channel.

26. The method according to claim 18, wherein The feedback information satisfies any of the following conditions: The feedback information is used to feed back that the second node successfully receives part of the first control information; The feedback information is used to feedback that the second node successfully receives all the content of the first control information; The feedback information is used to feed back the partial content of the first control information that the second node failed to successfully receive; The feedback information is used to feed back that the second node failed to successfully receive all the content of the first control information.

27. The method of claim 18, further comprising: Sending feedback information to the first node, where the feedback information is used to feedback that the second node successfully receives the first control information; Receive other control information associated with the first control information from the first node.

28. The method of claim 18, further comprising: Sending feedback information to the first node, where the feedback information is used to feedback that the second node failed to successfully receive the first control information; Receive all or part of the first control information retransmitted by the first node.

29. A communication device comprising: memory and processor; The memory is coupled to the processor; The memory is used to store instructions executable by the processor; When the processor executes the instructions, the method according to any one of claims 1 to 28 is performed.

30. A computer-readable storage medium, wherein: The computer-readable storage medium stores computer instructions, which, when executed on a communication device, enable the communication device to perform the method according to any one of claims 1 to 28.

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