Communication method and device, storage medium and program product

Abstract

The embodiment of the invention provides a communication method and device, a storage medium and a program product, relates to the technical field of communication, and can reduce the influence of an adaptive modulation and coding scheme (MCS) based on reinforcement learning on to-be-transmitted service data. The method is applied to a first node, and comprises the following steps: receiving first indication information sent by a second node, the first indication information being used for indicating a first type of physical channel, the first type of physical channel being used for participating in an adaptive modulation and coding scheme (MCS) based on reinforcement learning, the first type of physical channel satisfying a first characteristic, and the second node being used for receiving a second characteristic; the first feature comprises at least one of the following features: not bearing information originating from a protocol stack high layer; the retransmission is avoided; the decoding result is not used for controlling the block error rate BLER; the decoding result is not used for triggering conditions of other communication processes except for the MCS (adaptive modulation and coding scheme).

Description

Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular, to a communication method, apparatus, storage medium, and program product. Background Art

[0002] The adaptive modulation and coding scheme (adaptive MCS) technology can dynamically adjust the modulation and coding scheme (MCS) to meet the modulation and coding requirements of channel fading changes in a wireless communication system. The adaptive MCS method based on reinforcement learning enables a network (such as a server, a base station, etc.) to learn an optimal adaptive MCS policy in the information interaction with a user equipment (UE) based on the air interface channel information, so as to ensure the optimal spectral efficiency and user experience rate.

[0003] However, in the adaptive MCS method based on reinforcement learning, in order to obtain an optimal decision, the network needs to randomly or based on an un-converged policy send indication information such as modulation order and channel coding rate to collect training data. The indication information of the modulation order and channel coding rate may not match the air interface channel capacity, resulting in decoding errors of the transmitted service data (such as user data) and triggering data retransmission. These errors will reduce the spectral efficiency, increase the transmission delay, and even trigger an exception handling process.

[0004] Therefore, how to reduce the impact of the adaptive MCS based on reinforcement learning on the transmitted service data has become an urgent technical problem to be solved. Summary of the Invention

[0005] Embodiments of the present disclosure provide a communication method, apparatus, storage medium, and program product, which can reduce the impact of the adaptive MCS based on reinforcement learning on service data to be transmitted.

[0006] On the one hand, a communication method is provided. The method is applied to a first node and includes: receiving first indication information sent by a second node, where the first indication information is used to indicate a first type of physical channel, the first type of physical channel is used to participate in an adaptive modulation and coding scheme MCS based on reinforcement learning, and the first type of physical channel satisfies a first feature, where the first feature includes at least one of the following: not carrying information originating from a high layer of a protocol stack; not being retransmitted; a decoding result not being used for block error rate (BLER) control; a decoding result not being used as a triggering condition for other communication processes other than the adaptive modulation and coding scheme MCS.

[0007] In another aspect, a communication method is provided, which is applied to a first node and includes: receiving second indication information sent by a second node, where the second indication information is used to indicate a first type of reference signal, and the first type of reference signal is used to participate in a reinforcement learning-based adaptive modulation and coding scheme (MCS). Among them, the first type of reference signal satisfies at least one of the following: the first type of reference signal includes a part known to the receiving node and a part unknown to the receiving node; the part known to the receiving node in the first type of reference signal is used to decode the part unknown to the receiving node; the physical layer processing of the first type of reference signal includes channel coding and modulation.

[0008] In another aspect, a communication method is provided, which is applied to a second node and includes: sending first indication information to a first node, where the first indication information is used to indicate a first type of physical channel, and the first type of physical channel is used to participate in a reinforcement learning-based adaptive modulation and coding scheme (MCS), and the first type of physical channel satisfies a first feature, where the first feature includes at least one of the following: not carrying information originating from a high layer of the protocol stack; not being retransmitted; the decoding result is not used for the control of the block error rate (BLER); the decoding result is not used as a triggering condition for other communication processes other than the adaptive modulation and coding scheme (MCS).

[0009] In another aspect, a communication method is provided, which is applied to a second node and includes: sending second indication information to a first node, where the second indication information is used to indicate a first type of reference signal, and the first type of reference signal is used to participate in a reinforcement learning-based adaptive modulation and coding scheme (MCS). Among them, the first type of reference signal satisfies at least one of the following: the first type of reference signal includes a part known to the receiving node and a part unknown to the receiving node; the part known to the receiving node in the first type of reference signal is used to decode the part unknown to the receiving node; the physical layer processing of the first type of reference signal includes channel coding and modulation.

[0010] In another aspect, a communication device is provided, which is applied to a first node, and the device includes: a receiving module.

[0011] The receiving module is configured to receive first indication information sent by a second node, where the first indication information is used to indicate a first type of physical channel, and the first type of physical channel is used to participate in a reinforcement learning-based adaptive modulation and coding scheme (MCS), and the first type of physical channel satisfies a first feature, where the first feature includes at least one of the following: not carrying information originating from a high layer of the protocol stack; not being retransmitted; the decoding result is not used for the control of the block error rate (BLER); the decoding result is not used as a triggering condition for other communication processes other than the adaptive modulation and coding scheme (MCS).

[0012] In another aspect, a communication device is provided, which is applied to a first node, and the device includes: a receiving module.

[0013] A receiving module, configured to receive second indication information sent by a second node, where the second indication information is used to indicate a first type of reference signal, and the first type of reference signal is used to participate in a reinforcement learning-based adaptive modulation and coding scheme (MCS). Wherein, the first type of reference signal satisfies at least one of the following: the first type of reference signal includes a part known to the receiving node and a part unknown to the receiving node; the part known to the receiving node in the first type of reference signal is used to decode the part unknown to the receiving node; the physical layer processing of the first type of reference signal includes channel coding and modulation.

[0014] In another aspect, a communication device is provided, which is applied to a second node, and the device includes: a sending module.

[0015] The sending module is configured to send first indication information to a first node, where the first indication information is used to indicate a first type of physical channel, and the first type of physical channel is used to participate in a reinforcement learning-based adaptive modulation and coding scheme (MCS), and the first type of physical channel satisfies a first feature, where the first feature includes at least one of the following: does not carry information originating from a high layer of the protocol stack; is not retransmitted; the decoding result is not used for the control of the block error rate (BLER); the decoding result is not used as a triggering condition for other communication processes other than the adaptive modulation and coding scheme (MCS).

[0016] In another aspect, a communication device is provided, which is applied to a second node, and the device includes: a sending module.

[0017] The sending module is configured to send second indication information to a first node, where the second indication information is used to indicate a first type of reference signal, and the first type of reference signal is used to participate in a reinforcement learning-based adaptive modulation and coding scheme (MCS). Wherein, the first type of reference signal satisfies at least one of the following: the first type of reference signal includes a part known to the receiving node and a part unknown to the receiving node; the part known to the receiving node in the first type of reference signal is used to decode the part unknown to the receiving node; the physical layer processing of the first type of reference signal includes channel coding and modulation.

[0018] In another aspect, a communication device is provided, including: a memory and a processor. The memory and the processor are coupled. The memory is used to store a computer program. When the processor executes the computer program, the communication method of any one of the above embodiments is implemented.

[0019] In another aspect, a computer-readable storage medium is provided, on which computer program instructions are stored, and when the computer program instructions are executed by a processor, the communication method of any one of the above embodiments is implemented.

[0020] In another aspect, a computer program product is provided, which includes computer program instructions that, when executed, implement the communication method of any of the above embodiments.

[0021] Embodiments of the present disclosure disclose differentiating from the physical channel for transmitting service data by indicating a medium (such as a physical channel or a reference signal) dedicated to transmitting training data required for reinforcement learning-based adaptive MCS. In this way, conflicts in the transmission of service data during the process of reinforcement learning-based adaptive MCS can be avoided, thereby reducing the impact of reinforcement learning-based adaptive MCS on the transmitted service data. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0023] Figure 1 Schematic diagram of a communication system provided for some embodiments of the present disclosure;

[0024] Figure 2 Schematic flowchart of a communication method provided for some embodiments of the present disclosure;

[0025] Figure 3 Schematic flowchart of another communication method provided for some embodiments of the present disclosure;

[0026] Figure 4 Schematic flowchart of another communication method provided for some embodiments of the present disclosure;

[0027] Figure 5 Schematic flowchart of another communication method provided for some embodiments of the present disclosure;

[0028] Figure 6 Schematic flowchart of another communication method provided for some embodiments of the present disclosure;

[0029] Figure 7 Schematic flowchart of another communication method provided for some embodiments of the present disclosure;

[0030] Figure 8 Schematic structure of a communication device provided for some embodiments of the present disclosure Figure 1 ;

[0031] Figure 9 Schematic structure of a communication device provided for some embodiments of the present disclosure Figure 2 ;

[0032] Figure 10 Structural schematic of a communication device provided by some embodiments of the present disclosure Figure 3 ;

[0033] Figure 11 Structural schematic of a communication device provided by some embodiments of the present disclosure Figure 4 ;

[0034] Figure 12 Structural schematic of a communication device provided by some embodiments of the present disclosure Figure 5 。 Detailed implementation manners

[0035] Next, the technical solutions in the present disclosure will be clearly and completely described in conjunction with the accompanying drawings in the present disclosure. Obviously, the described embodiments are only some of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.

[0036] It should be noted that in the present disclosure, words such as "exemplary" or "for example" are used to represent examples, illustrations or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the present disclosure should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Exactly speaking, using words such as "exemplary" or "for example" aims to present relevant concepts in a specific manner.

[0037] Hereinafter, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0038] In the description of the present disclosure, unless otherwise specified, " / " means "or". For example, A / B may represent A or B. The "and / or" herein is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, "at least one" means one or more, and "a plurality" means two or more.

[0039] Existing adaptive MCS methods need to obtain information such as the channel state information (CSI) of the air interface channel and the data decoding result to determine the modulation order and coding rate of data transmission. The CSI of the air interface channel includes: the CSI of the downlink channel obtained by measuring based on the channel state information reference signal (CSI-RS), and the CSI of the uplink channel obtained by measuring based on the sounding reference signal (SRS). Among them, the downlink CSI includes the rank indicator (RI), the precoding matrix indicator (PMI), the channel quality indicator (CQI), etc., and the uplink CSI includes the signal-to-interference-plus-noise ratio (SINR) of the uplink channel. The decoding result of the downlink data is indicated by the acknowledgement (ACK) / negative acknowledgement (NACK) reported by the UE.

[0040] When the network determines the MCS, it mainly relies on two parts of SINR: the first part of SINR and the second part of SINR. The sum of the first part of SINR and the second part of SINR is equal to the total SINR, and the total SINR is used to map the modulation order and coding rate. The first part of SINR is obtained through the uplink and / or downlink CSI. The second part of SINR is obtained through the result of data decoding. The second part of SINR is an accumulated value, which is accumulated by a series of SINR increment values. Each SINR increment value corresponds to a data decoding result (correct or incorrect). The SINR increment value corresponding to correct decoding is positive, and the SINR increment value corresponding to incorrect decoding is negative. The numerical size of the positive SINR increment value is in a certain proportion to the numerical size of the negative SINR increment value, and this proportion is related to the target block error rate (BLER). When there is continuous data transmission, the positive or negative SINR increment values will be continuously accumulated, causing the second part of SINR to change dynamically until it converges. Since the first part of SINR is a static value, the total SINR also converges at this time, and the BLER of data transmission is equal to the target BLER.

[0041] The existing adaptive MCS methods are mainly designed based on experience and mathematical models, etc., which require certain conditional assumptions, that is, there is a large amount of data transmission and sufficient data decoding results for dynamically adjusting the total SINR until convergence. However, most real communication services are small data packets and may only require one or two transmissions to complete. At this time, the total SINR has not been fully adjusted so that its value may not be the most in line with the wireless channel capacity.

[0042] With the rapid development of artificial intelligence (AI) technology, reinforcement learning (RL) can help the adaptive MCS of wireless communication achieve the optimal matching between the modulation order and coding rate of data transmission and the wireless channel.

[0043] Among them, RL is one of the paradigms and methodologies of machine learning, which is used to describe and solve the problem that an agent maximizes the reward or achieves a specific goal by learning strategies during the interaction with the environment. Reinforcement learning focuses on online learning and attempts to maintain a balance between exploration and exploitation. There are two interactive objects in reinforcement learning: the agent and the environment. The agent can perceive the state of the external environment and the feedback reward, and conduct learning and decision-making. The decision-making function of the agent refers to making different actions according to the state of the external environment, while the learning function refers to adjusting the strategy according to the reward of the external environment. The environment is all things outside the agent, and its state changes under the influence of the agent's actions and feedbacks the corresponding reward to the agent.

[0044] Generally speaking, the main purpose of reinforcement learning is to obtain the optimal decision-making. Reinforcement learning uses action-state value functions, state value functions, policy functions, etc. to obtain the optimal policy. Deep reinforcement learning can be simply understood as using a deep neural network to fit action-state value functions, state value functions, policy functions, etc.

[0045] Reinforcement learning can help the network obtain the optimal adaptive MCS strategy. Reinforcement learning can enable the network to learn the optimal adaptive MCS strategy during the information interaction with the UE based on the air interface channel, thus ensuring the optimal spectrum efficiency and user experience rate.

[0046] The RL agent learns the wireless channel and the demodulation ability of the receiving end online, so as to formulate the optimal adaptive modulation and coding scheme. In RL adaptive MCS, the agent is located in the network scheduler, and the online learning process includes:

[0047] Step 1: The network scheduler receives status information, including but not limited to: CSI of the radio channel, and the result of data demodulation.

[0048] Step 2: The network sends downlink control information (DCI) to the UE based on the policy function or action-state value function to schedule the physical downlink shared channel (PDSCH) or the physical uplink shared channel (PUSCH), where the DCI contains at least information on the modulation order and coding rate.

[0049] Among them, the downlink adaptive MCS mainly indicates the modulation order and coding rate that match the radio channel capacity for the PDSCH. The network determines the modulation order and coding rate based on the air interface channel state and the demodulation ability of the physical channel and sends the indication information to the UE.

[0050] Step 3: The UE receives the PDSCH or transmits the PUSCH according to the DCI. If receiving the PDSCH, the UE sends the ACK or NACK of the PDSCH to the network. If transmitting the PUSCH, the network decodes the PUSCH.

[0051] Step 4: The network trains or updates the policy function or / and the action-state value function based on the CSI and the decoding result of the data. Among them, the policy function or the action-state value function can be considered as the mapping of the state and the action.

[0052] Step 5: Repeat Step 1.

[0053] To learn the optimal policy function and / or value function, the network needs to collect training and validation data. To achieve high-quality data collection, the network requires an exploration process to explore a relatively comprehensive state space and collect diverse state trajectories. Here, the exploration process refers to the network instructing the transmitter to send PDSCH or PUSCH at specific modulation orders and coding rates at multiple different times and collecting the decoding results. During this process, the network receives state trajectories in the time dimension and corresponding feedback information. During this exploration process, the network may randomly or based on a non-convergent policy indicate MCS information for data transmission. The mismatch between these MCSs used for exploration purposes and the air interface channel capacity will have a serious negative impact on data transmission. When the SE corresponding to the indicated MCS information is greater than the air interface channel capacity, it will lead to data decoding errors, and incorrect decoding requires data retransmission. During the retransmission process, the service data carried by the physical channel (such as user data) will be cached at the physical layer of the receiving end. Retransmission not only wastes air interface resources but also increases the delay of delivering user data to the upper layer. Data decoding errors will affect the network's control of the block error rate BLER. If a large amount of data is decoded incorrectly, it may trigger abnormal processes, including: radio link failure, or re-establishment, etc.

[0054] Therefore, how to reduce the impact of reinforcement learning-based adaptive MCS on the transmitted service data has become a technical problem to be urgently solved.

[0055] Based on this, to solve the above technical problem, the embodiments of the present disclosure provide a communication method, which is applied to the scenario of reinforcement learning-based adaptive MCS. By indicating a medium (such as a physical channel or a reference signal) dedicated to transmitting the training data required for reinforcement learning-based adaptive MCS, it is distinguished from the physical channel for transmitting service data. In this way, conflicts in the transmission of service data during the process of reinforcement learning-based adaptive MCS can be avoided, thereby reducing the impact of reinforcement learning-based adaptive MCS on the transmitted service data.

[0056] In the embodiments of the present disclosure, the network architecture of a mobile communication network (including but not limited to 2G, 3G, 4G, 5G, and future mobile communication networks (such as the evolution of future fifth-generation mobile communication technology (5th generation mobile communication technology advanced, 5G-A), sixth-generation mobile communication technology (6th generation mobile communication technology, 6G)), seventh-generation mobile communication technology (7th generation mobile communication technology, 7G))) may at least include a first communication node and a second communication node, and the first communication node and the second communication node may be abbreviated as the first node and the second node respectively.

[0057] Exemplarily, as Figure 1 shown, it is a schematic diagram of a communication system provided by the embodiments of the present disclosure. The communication system may include: a first node 101 and a second node 102.

[0058] Among them, the second node 102 may indicate to the first node 101 a physical channel dedicated to participating in the reinforcement learning-based adaptive MCS (i.e., the first type of physical channel), so that the first node 101 can perform information interaction with the second node 102 based on the first type of physical channel for air interface channel handover, to complete the sample collection of the training data for the reinforcement learning-based adaptive MCS.

[0059] Moreover, the service data transmitted between the first node 101 and the second node 102 will not be transmitted on the first type of physical channel. The service data transmitted between the first node 101 and the second node 102 is carried and transmitted by other types of physical channels (i.e., physical channels not used to participate in the reinforcement learning-based adaptive MCS, or physical channels dedicated to transmitting service data).

[0060] In this way, by indicating a physical channel dedicated to participating in the reinforcement learning-based adaptive MCS to carry and transmit the training data, it can be distinguished from the physical channel for transmitting service data, avoiding conflicts in the transmission of service data during the process of the reinforcement learning-based adaptive MCS, and reducing the impact of the reinforcement learning-based adaptive MCS on the transmitted service data.

[0061] Optionally, the medium dedicated to transmitting the training data required for the reinforcement learning-based adaptive MCS indicated by the second node 102 to the first node 101 may also be a reference signal,

[0062] so as to distinguish it from the physical channel for transmitting service data.

[0063] It should be noted that the first node 101 can be a user equipment node, such as a passive Internet of Things device, a tag, or a terminal, etc. The second node 102 can be a network equipment node, such as a base station, an auxiliary node, or an intermediate node, etc.

[0064] Among them, a base station (BS) can be a base station in LTE (Long Term Evolution), LTE-A (Long Term Evolution Advanced), or an evolved Node B (eNB or eNodeB), a base station device (gNB) in a 5G network, or a base station in a future communication system, etc. A base station can include various macro base stations, micro base stations, home base stations, wireless remote radio heads, reconfigurable intelligent surfaces (RISs), routers, relay stations, transmission and reception points (TRPs), receivers, access points (APs), wireless fidelity (WIFI) devices, and other various network-side devices. Sometimes a base station can also be referred to as a reader or a transceiver for communicating with a terminal.

[0065] A terminal can be a device with wireless transceiver functions. A terminal can be a mobile phone, a tablet (Pad), a computer with wireless transceiver functions, 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, 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 so on. Embodiments of the present disclosure do not limit the application scenarios. Sometimes a terminal can also be referred to as a user, a user equipment (UE), an A-IoT device, an access terminal, a UE unit, a UE station, a mobile station, a mobile unit, a remote station, a transmitter, a remote terminal, a mobile device, a UE terminal, a wireless communication device, a UE agent, or a UE device, etc. Embodiments of the present disclosure do not limit this.

[0066] It should be noted that Figure 1 is only an exemplary framework diagram Figure 1The number of devices included is not limited by the name of each device, and in addition to Figure 1 the devices shown, the communication system may further include other devices, such as core network devices.

[0067] The application scenarios of the embodiments of the present disclosure are not limited. The system architecture and service scenarios described in the embodiments of the present disclosure are for more clearly illustrating 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 of ordinary skill in the art can know that with the evolution of the network architecture and the emergence of new service scenarios, the technical solutions provided by the embodiments of the present disclosure are equally applicable to similar technical problems.

[0068] Figure 2 shows a schematic flowchart of a communication method. As Figure 2 shown, this communication method is applied to a first node and includes:

[0069] S201. Receive first indication information sent by a second node.

[0070] Among them, the first indication information is used to indicate a first type of physical channel, and the first type of physical channel is used to participate in reinforcement learning-based adaptive MCS.

[0071] That is to say, the first type of physical channel is only used to obtain the first information required for reinforcement learning-based adaptive MCS (such as the decoding result of the physical channel based on a given modulation order and coding rate, etc.), and is not used to carry other data information other than the first data information (such as user data, etc.).

[0072] In the embodiments of the present disclosure, the first type of physical channel may satisfy a first feature, and the first feature may include at least one of the following 1.1 - 1.4:

[0073] 1.1. Does not carry information originating from the upper layer of the protocol stack;

[0074] 1.2. Is not retransmitted;

[0075] 1.3. The decoding result is not used for the control of the block error rate BLER;

[0076] 1.4. The decoding result is not used as a trigger condition for other communication processes other than adaptive MCS.

[0077] Among them, for the feature corresponding to the above 1.1, "the first type of physical channel does not carry information originating from the upper layer of the protocol stack" may include: the transport block of the first type of physical channel is a random bit sequence or a pseudo-random bit sequence.

[0078] That is to say, the data carried by the physical channels of the first type are all randomly generated information content and will not be read and utilized by subsequent user services.

[0079] Alternatively, "the physical channels of the first type do not carry information originating from the upper layers of the protocol stack" may also include: the physical channels of the first type do not carry information of the medium access control (MAC) layer.

[0080] Regarding the feature corresponding to 1.2 above, "the physical channels of the first type are not retransmitted" may include: when the decoding result of the physical channels of the first type at the receiving node is correct or incorrect, the content carried by the physical channels of the first type is discarded by the physical layer of the receiving node.

[0081] That is to say, regardless of whether the first node decodes the received physical channels of the first type successfully (i.e., whether the decoding result is correct), the physical layer of the first node will discard the content carried by the physical channels of the first type. In this way, even if the first node fails to decode the physical channels of the first type (i.e., the decoding result is incorrect), the physical layer of the first node will also discard the content carried by the physical channels of the first type, and there is no need for the second node to retransmit the physical channels of the first type.

[0082] Similarly, regardless of whether the second node decodes the received physical channels of the first type successfully (i.e., whether the decoding result is correct), the physical layer of the second node will discard the content carried by the physical channels of the first type. In this way, even if the second node fails to decode the physical channels of the first type (i.e., the decoding result is incorrect), the physical layer of the second node will also discard the content carried by the physical channels of the first type, and there is no need for the first node to retransmit the physical channels of the first type.

[0083] Moreover, regarding the feature corresponding to 1.3 above, "the decoding result of the physical channels of the first type is not used for the control of BLER" may include: the decoding result of the physical channels of the first type is not used for calculating the block error rate BLER.

[0084] That is to say, the decoding result of the physical channels of the first type is not used for the statistics of BLER, so that BLER will not exceed the preset threshold corresponding to BLER due to the decoding error of the physical channels of the first type, nor will it be controlled to reduce BLER due to the decoding success or error of the physical channels of the first type.

[0085] In addition, regarding the feature corresponding to 1.4 above, "the decoding result of the physical channels of the first type is not used as a trigger condition for other communication processes other than adaptive MCS" may include: the decoding result of the physical channels of the first type is not used as a trigger condition for the layer 1 process or layer 2 process or layer 3 process of the radio access network.

[0086] That is to say, the physical channel of the first type is used for the training of RL and will not be utilized as service data by subsequent communication services, thus triggering corresponding communication processes.

[0087] It should be noted that the present disclosure embodiment does not limit the configuration method of the first indication information. For example, the first indication information can be configured through DCI. Another example is that the first indication information can be configured through a system information block. Another example is that the first indication information can be configured through a synchronization signal block.

[0088] It can be understood that by indicating a medium (such as a physical channel) dedicated to transmitting the training data required for the reinforcement learning-based adaptive MCS, it is distinguished from the physical channel for transmitting service data. In this way, conflicts in the transmission of service data during the process of the reinforcement learning-based adaptive MCS can be avoided, and further, the impact of the reinforcement learning-based adaptive MCS on the transmitted service data can be reduced.

[0089] In some embodiments, the physical channel of the first type may include the first type of PDSCH and the first type of PUSCH, and the physical channel of the first type indicated by the first indication information may be the first type of PDSCH or the first type of PUSCH.

[0090] It should be noted that both the first type of PDSCH and the first type of PUSCH satisfy the above first feature.

[0091] Among them, taking the first type of PDSCH as an example, the first type of PDSCH carries the first type of medium access control control element (MAC CE). For the feature corresponding to the above 1.1, "the physical channel of the first type does not carry information originating from the upper layer of the protocol stack" may include at least one of the following 2.1 - 2.2:

[0092] 2.1. The first type of PDSCH does not carry other types of MAC CE except the first type of MAC CE;

[0093] 2.2. The first type of PDSCH does not carry a medium access control service data unit (MAC SDU).

[0094] In the present disclosure embodiment, the logical channel identifier (LCID) in the MAC sub-header identifier of the first type of MAC CE is the target identifier.

[0095] Among them, the target identifier is different from the LCID in the MAC sub-header identifiers of other types of MAC CEs.

[0096] That is to say, by configuring an LCID in the MAC sub-header identifier to indicate participation in reinforcement learning-based adaptive MCS, it can be distinguished from other LCIDs, so that the MAC CE corresponding to this MAC sub-header identifier is the first type of MAC CE, that is, the first type of MAC CE is only used to participate in reinforcement learning-based adaptive MCS.

[0097] In some embodiments, the first indication information includes at least one of the following 3.1 - 3.2:

[0098] 3.1. The number and position of resource elements mapped by the first type of physical channel in each resource block;

[0099] 3.2. The modulation order and coding rate of the first type of physical channel.

[0100] It should be noted that the first node can perform different transceiver operations based on the first type of PDSCH or the first type of PUSCH.

[0101] As a possible implementation, if the first type of physical channel is the first type of PDSCH, after the first node receives the first indication information (i.e., S201) sent by the second node, the first node can also receive the first type of PDSCH sent by the second node based on the above 3.1 carried in the first indication information, and send an ACK message or a NACK message to the second node based on the decoding situation of the first type of PDSCH.

[0102] It should be noted that the ACK message can indicate that the first node decodes the first type of PDSCH successfully (i.e., the decoding result is correct), while the NACK message can indicate that the first node decodes the first type of PDSCH failed (i.e., the decoding result is incorrect).

[0103] Among them, during the process of the first node receiving the first type of PDSCH sent by the second node, the first node can receive the first type of PDSCH and other types of PDSCH sent by the second node on the same time-domain resource.

[0104] It should be noted that other types of PDSCH do not meet the above first feature, and the time-domain resource can include at least one of the following: time slot, subframe, symbol.

[0105] Exemplarily, if the first indication information is represented by DCI, the DCI format representing the first indication information (i.e., scheduling the first type of PDSCH) can be at least one of the following: DCI format 1-0, DCI format 1-1, DCI format 1-2, DCI format 4-0, DCI format 4-1, DCI format 4-2.

[0106] Moreover, the method for representing the first indication information (i.e., scheduling the first type of PDSCH) by DCI can be at least one of the following: a field of the DCI is used to indicate whether the PDSCH is the first type of PDSCH, or the radio network temporary identifier (RNTI) type that scrambles the cyclic redundancy check (CRC) of the physical downlink control channel (PDCCH) indicates whether the scheduled PDSCH is the first type of PDSCH.

[0107] Among them, for the field of the DCI used to indicate whether the PDSCH is the first type of PDSCH. For example, the DCI can include a PDSCH type indication field with a field length of 1 bit. When the field is 1, it indicates that the PDSCH is the first type of PDSCH; when the field is 0, it indicates that the PDSCH is not the first type of PDSCH.

[0108] Moreover, the RNTI type that scrambles the CRC of the PDCCH indicates whether the scheduled PDSCH is the first type of PDSCH. For example, the PDSCH scheduled by the physical downlink control channel (PDCCH) scrambled by the first type of RNTI's CRC is the first type of PDSCH; the PDSCH scheduled by the PDCCH scrambled by other types of RNTI's CRC is not the first type of PDSCH.

[0109] Among them, the value of the first type of RNTI is a hexadecimal number with a length of 4 bits, and its value range can be 0001–FFF2, or FFF3–FFFD. The purpose of the first type of RNTI is to schedule the transmission of the first type of PDSCH. The first type of RNTI can be used for at least one of the following: dynamically scheduled unicast transmission, dynamically scheduled broadcast multicast, configured scheduled unicast transmission, configured scheduled broadcast multicast transmission. The first type of PDSCH can be dynamically scheduled or non-dynamically scheduled. The first type of PDSCH can be unicast transmission or broadcast multicast transmission.

[0110] In addition, the DCI for scheduling the PDSCH of the first type contains at least time-domain resource allocation information, frequency-domain resource allocation information, and modulation and coding scheme information. Among them, the information indicated by the time-domain resource allocation information includes at least one of the following: the offset of the PDSCH of the first type relative to the PDCCH, the starting time-domain symbol, and the time-domain symbol length. The information indicated by the frequency-domain resource allocation information includes at least one of the following: the starting resource block (RB) corresponding to the PDSCH of the first type and the number of RBs. The information indicated by the MCS information includes at least one of the following: the modulation order and coding rate corresponding to the PDSCH of the first type.

[0111] The transport block of the PDSCH of the first type does not correspond to the data at the MAC layer. This transport block can be a random or pseudo-random bit sequence, and the physical layer processing undergone by this bit sequence includes at least: channel coding, modulation, and resource mapping.

[0112] The PDSCH of the first type can map at least one resource element (RE) in each RB. The PDSCH of the first type can map one RE, or two REs, or all REs in each RB. The DCI indicates the number of REs mapped by the PDSCH of the first type in each RB and the mapped RE pattern.

[0113] Among them, the RE pattern refers to which REs the PDSCH of the first type maps among the 12 REs in the RB. For example, the DCI indicates that the PDSCH of the first type maps one RE in each RB and the mapped RE is the first RE in the RB.

[0114] The fields in the DCI can be used to indicate the number of REs and the mapped RE pattern. For example, there is a bitmap in the DCI. This bitmap contains 12 bits. The most significant bit can be the leftmost bit and the least significant bit can be the rightmost bit, or the most significant bit can be the rightmost bit and the least significant bit can be the leftmost bit. It can correspond to the 12 REs in the RB in sequence from left to right or from right to left. For example, if it corresponds to the 12 REs in the RB in sequence from left to right, the first bit on the left corresponds to the first RE in the RB, the second bit on the left corresponds to the second RE in the RB, and so on. The 12th bit on the left corresponds to the 12th RE in the RB.

[0115] If the value of a bit is 1, it means that the first type of PDSCH maps corresponding REs in each RB. For example, in the DCI, the bit map corresponds to 12 REs in the RB from left to right. If the value of the first bit on the left side of the bit map is 1 and the value of the second bit is 1, and the values of other bits are 0, it means that the first type of PDSCH maps 2 REs in an RB, namely the first RE and the second RE.

[0116] The UE (i.e., the first node) receives DCI sent by the network (i.e., the second node), indicating that the UE receives a first type of PDSCH. The modulation order and coding rate of the first type of PDSCH are indicated in the DCI. The UE receives the first type of PDSCH and decodes the first type of PDSCH based on the modulation order and coding rate. If the first type of PDSCH is correctly decoded, the physical layer of the UE does not deliver the data to the higher layer. If the first type of PDSCH cannot be correctly decoded, the physical layer of the UE does not put the data in the soft buffer or soft information buffer, and the UE does not expect to receive a retransmission of the first type of PDSCH. The physical layer of the UE discards the content carried by the first type of PDSCH. The decoding result of the first type of PDSCH on the UE side is not used for BLER control. The decoding result of the first type of PDSCH on the UE side is not used for calculating BLER. The decoding result of the first type of PDSCH is not used to trigger RAN layer 1 or layer 2 or layer 3 procedures. The UE sends an ACK or NACK of the first type of PDSCH to the network. If the first type of PDSCH is correctly decoded, the UE sends an ACK to the network. If the first type of PDSCH cannot be correctly decoded, the UE sends a NACK to the network.

[0117] The UE expects to receive one or two PDSCHs on the same time domain resource. If the UE receives two PDSCHs on the same time slot, the UE expects one of them to be the first type of PDSCH and the other to be a non-first type of PDSCH. When a first type of PDSCH and a non-first type of PDSCH are received in the same time slot, the UE expects to receive the other PDSCH on the REs in an RB that are not mapped by the first type of PDSCH. Among them, the time domain resource can be one of the following: time slot, subframe, time domain symbol.

[0118] As another possible implementation, if the first type of physical channel is the first type of PUSCH, after the first node receives the first indication information (i.e., S201) sent by the second node, the first node can send the first type of PUSCH indicated by the first indication information to the second node based on the above 3.1 carried by the first indication information.

[0119] Among them, in the process of the first node sending a PUSCH of the first type to the second node, the first node may send a PUSCH of the first type and a PUSCH of other types to the second node on the same time-domain resource.

[0120] It should be noted that PUSCHs of other types do not satisfy the above first feature, and the time-domain resource may include at least one of the following: time slot, subframe, symbol.

[0121] Exemplarily, if the first indication information is represented by DCI, the DCI format representing the first indication information (i.e., scheduling a PUSCH of the first type) may be at least one of the following: DCI format 0-0, DCI format 0-1, DCI format 0-2.

[0122] Moreover, the method of representing the first indication information (i.e., scheduling a PUSCH of the first type) by DCI may be at least one of the following: a field of the DCI is used to indicate whether the PUSCH is a PUSCH of the first type, or the RNTI type scrambling the CRC of the PDCCH scheduling the PUSCH indicates whether the scheduled PUSCH is a PUSCH of the first type.

[0123] Among them, for the field of the DCI used to indicate whether the PUSCH is a PUSCH of the first type. For example, the DCI may include a PUSCH type indication field with a field length of 1 bit. When the field is 1, it means the PUSCH is a PUSCH of the first type; when the field is 0, it means the PUSCH is not a PUSCH of the first type.

[0124] Moreover, the RNTI type scrambling the CRC of the PDCCH indicates whether the scheduled PUSCH is a PUSCH of the first type. For example, the PUSCH scheduled by the PDCCH scrambled with the RNTI of the first type is a PUSCH of the first type; the PUSCH scheduled by the PDCCH scrambled with the RNTI of other types is not a PUSCH of the first type.

[0125] Among them, the value of the RNTI of the first type is a hexadecimal number with a length of 4 bits, and its value range may be 0001–FFF2, or FFF3–FFFD. The purpose of the RNTI of the first type is to schedule the transmission of the PUSCH of the first type. The RNTI of the first type may be used for at least one of the following: dynamically scheduled unicast transmission, non-dynamically scheduled unicast transmission. The PUSCH of the first type may be dynamically scheduled or non-dynamically scheduled.

[0126] The DCI for scheduling the PUSCH of the first type contains at least time-domain resource allocation information, frequency-domain resource allocation information, modulation and coding scheme information. Among them, the information indicated by the time-domain resource allocation information includes at least one of the following: the offset of the PUSCH of the first type relative to the PDCCH, the starting time-domain symbol, and the time-domain symbol length. The information indicated by the frequency-domain resource allocation information includes at least one of the following: the starting RB corresponding to the PUSCH of the first type and the number of RBs. The information indicated by the modulation and coding scheme information includes at least one of the following: the modulation order and coding rate corresponding to the PUSCH of the first type.

[0127] The transport block of the PUSCH of the first type has no corresponding data at the MAC layer. This transport block can be a random or pseudo-random bit sequence, and the physical layer processing undergone by this bit sequence includes at least: channel coding, modulation, and resource mapping.

[0128] The PUSCH of the first type can map at least one RE in each RB. The PUSCH of the first type can map one RE, or two REs, or all REs in each RB. The DCI indicates the number of REs mapped by the PUSCH of the first type in each RB and the mapped RE pattern.

[0129] Among them, the RE pattern refers to which REs the PUSCH of the first type maps among the 12 REs in the RB. For example, the DCI indicates that the PUSCH of the first type maps one RE in each RB and the mapped RE is the first RE in the RB.

[0130] The fields in the DCI can be used to indicate the number of REs and the mapped RE pattern. For example, there is a bitmap in the DCI. This bitmap contains 12 bits. The most significant bit is the leftmost bit, the least significant bit is the rightmost bit, or the most significant bit is the rightmost bit, the least significant bit is the leftmost bit. It can correspond to the 12 REs in the RB from left to right in sequence, or correspond to the 12 REs in the RB from right to left in sequence. For example, if it corresponds to the 12 REs in the RB from left to right in sequence, the first bit on the left corresponds to the first RE in the RB, the second bit on the left corresponds to the second RE in the RB, and so on. The 12th bit on the left corresponds to the 12th RE in the RB.

[0131] If the value of the bit is 1, it means that the PUSCH of the first type maps the corresponding RE in each RB. For example, if the bitmap in the DCI corresponds to the 12 REs in the RB from left to right in sequence, and the value of the first bit on the left of the bitmap is 1 and the value of the second bit is 1, and the values of other bits are 0, it means that the PUSCH of the first type maps 2 REs in one RB, which are the first RE and the second RE respectively.

[0132] The UE (i.e., the first node) receives DCI sent by the network (i.e., the second node), which indicates that the UE sends a PUSCH of the first type. The modulation order and coding rate of the PUSCH of the first type are indicated in the DCI. The network receives the PUSCH of the first type and decodes the PUSCH of the first type based on the modulation order and coding rate. If the PUSCH of the first type is correctly decoded, the physical layer of the network does not deliver the data to the higher layer. If the PUSCH of the first type cannot be correctly decoded, the physical layer of the network does not put the data in the soft buffer or soft information buffer, and the network does not indicate the UE to send a retransmission of the PUSCH of the first type. The physical layer of the network discards the content carried by the PUSCH of the first type. The UE does not expect to send a retransmission of the PUSCH of the first type. The decoding result of the PUSCH of the first type on the network side is not used for BLER control. The decoding result of the PUSCH of the first type on the network side is not used for calculating BLER. The decoding result of the PUSCH of the first type is not used to trigger RAN layer 1 or layer 2 or layer 3 procedures.

[0133] The UE expects to send one or two PUSCHs on the same time-domain resource. If the UE sends two PUSCHs in the same time slot, the UE expects one of them to be a PUSCH of the first type and the other to be a PUSCH of a non-first type. When a PUSCH of the first type and a PUSCH of a non-first type are sent in the same time slot, the UE expects to send the other PUSCH on the REs in an RB that are not mapped by the PUSCH of the first type. Herein, the time-domain resource may be one of the following: time slot, subframe, time-domain symbol.

[0134] The configuration method of the first indication information is introduced below with specific examples.

[0135] Exemplarily, the UE (i.e., the first node) may receive a DCI from the network (i.e., the second node), and this DCI indicates that the scheduled PDSCH carries a MAC CE of the first type. The UE may send an ACK or NACK for this PDSCH to the network. Among them, the PDSCH carrying the MAC CE of the first type satisfies one of the following conditions:

[0136] The PDSCH carries a MAC CE of the first type;

[0137] The PDSCH does not carry a MAC SDU;

[0138] The PDSCH does not carry MAC CEs of other types except the first type;

[0139] The UE does not expect the PDSCH to be retransmitted;

[0140] The decoding result of PDSCH will not be used for BLER control;

[0141] The condition that the decoding result of PDSCH will not be used to trigger layer 1 or layer 2 or layer 3 procedures in the radio access network.

[0142] Among them, the PDSCH carrying the MAC CE of the first type may also carry padding (i.e., useless padding information).

[0143] If the UE cannot correctly decode the PDSCH, the UE sends a NACK to the network, and the UE does not expect to receive a retransmission of the PDSCH. If the UE can correctly decode the PDSCH, the UE sends an ACK to the network, and the physical layer of the UE delivers the decoded data to the MAC layer. If the MAC entity recognizes the MAC CE of the first type, the MAC entity ignores the other contents in the MAC PDU. If the MAC entity recognizes the MAC CE of the first type, the MAC entity discards the other contents in the MAC PDU.

[0144] Among them, the MAC CE of the first type is identified by the MAC sub-header containing the LCID, and its size is fixed at zero bits. The UE can determine that the MAC CE is the MAC CE of the first type according to the MAC sub-header containing the LCID.

[0145] The embodiment of the present disclosure also provides a communication method, which is applied to a second node, as Figure 3 shown, the communication method may include:

[0146] S301. Send first indication information to the first node.

[0147] It should be noted that for the introduction of the first indication information, reference can be made to the description in S201 of the above embodiment, and details are not described here.

[0148] In some embodiments, after the second node sends the first indication information (i.e., S301) to the first node, the second node may perform different transceiver operations according to the first type of PDSCH or the first type of PUSCH indicated by the first indication information.

[0149] As a possible implementation manner, the second node may send the first type of PDSCH and other types of PDSCH to the first node on the same time domain resource.

[0150] Among them, the other types of PDSCH do not satisfy the first feature shown in 1.1 - 1.4 above, and the time domain resource may include at least one of the following: time slot, sub-frame, symbol.

[0151] As another possible implementation, the second node may receive the first type of PUSCH and other types of PUSCH sent by the first node on the same time-domain resource.

[0152] Among them, the other types of PUSCH do not satisfy the first feature shown in the above 1.1 - 1.4, and the time-domain resource may include at least one of the following: time slot, subframe, symbol.

[0153] Next, taking the interaction between the first node and the second node as an example, the communication method provided in the above embodiment will be introduced. As Figure 4 shown, it includes:

[0154] S401. The second node sends first indication information to the first node.

[0155] S402. The first node receives the first indication information sent by the second node.

[0156] In the above embodiment, a new physical channel is used as the medium for transmitting the training data required for the reinforcement learning-based adaptive MCS.

[0157] In addition, a new reference signal is provided in the embodiments of the present disclosure as the medium for transmitting the test data required for the reinforcement learning-based adaptive MCS, as follows:

[0158] Figure 5 shows a schematic flow diagram of another communication method. As Figure 5 shown, this communication method is applied to the first node and includes:

[0159] S501. Receive second indication information sent by the second node.

[0160] Among them, the second indication information is used to indicate the first type of reference signal, and the first type of reference signal is used to participate in the reinforcement learning-based adaptive MCS.

[0161] That is to say, the training data required for the reinforcement learning-based adaptive MCS is obtained through the first type of reference signal instead of the physical channel, so as to distinguish it from the transmission of service data through the physical channel. In this way, it is possible to avoid conflicts in the transmission of service data during the process of the reinforcement learning-based adaptive MCS, and further reduce the impact of the reinforcement learning-based adaptive MCS on the transmitted service data.

[0162] In the embodiments of the present disclosure, the first type of reference signal may satisfy at least one of the following 4.1 - 4.3:

[0163] 4.1. The first type of reference signal includes a part known to the receiving node and a part unknown to the receiving node;

[0164] 4.2. The part of the first type of reference signal that is known to the receiving node is used to decode the part that is unknown to the receiving node;

[0165] 4.3. The physical layer processing of the first type of reference signal includes channel coding and modulation.

[0166] Among them, for the feature corresponding to 4.2 above, "the part of the first type of reference signal that is known to the receiving node is used to decode the part that is unknown to the receiving node" may include: the part of the first type of reference signal that is known to the receiving node is used for air interface channel estimation, and the obtained air interface channel estimation is used to decode the part of the first type of reference signal that is unknown to the receiving node.

[0167] As a possible implementation, the time-domain behavior of the first type of reference signal is semi-persistent, and the MAC CE related to the first type of reference signal may include at least one of the following 5.1 - 5.3:

[0168] 5.1. The first field for indicating the modulation order and coding rate of the first type of reference signal;

[0169] 5.2. The second field for indicating the MCS table applied by the first type of reference signal;

[0170] 5.3. The third field for indicating the activation or deactivation of the first type of reference signal.

[0171] In some embodiments, the first type of reference signal may include the first type of uplink reference signal and the first type of downlink reference signal, and the first type of reference signal indicated by the first indication information may be the first type of uplink reference signal or the first type of downlink reference signal.

[0172] It should be noted that both the first type of uplink reference signal and the first type of downlink reference signal satisfy the features shown in the above 4.1 - 4.3.

[0173] As a possible implementation, taking the first type of reference signal as the first type of downlink reference signal as an example, after the first node receives the second indication information (i.e., S501) sent by the second node, the first node may also receive the first type of downlink reference signal sent by the second node. The first type of downlink reference signal includes the part known to the first node and the part unknown to the first node. Then, the first node may send the first verification information to the second node, and the first verification information is used to indicate whether the part of the first type of downlink reference signal that is unknown to the first node is decoded successfully or unsuccessfully.

[0174] Exemplarily, the reference signal of the first type may include two parts: the first part is known to the UE (i.e., the first node); the second part is unknown to the UE. The physical layer processing of the reference signal of the first type at the transmitting end (i.e., the second node) at least includes: CRC addition, channel coding, and modulation. Among them, at least the second part of the reference signal of the first type includes: CRC addition, channel coding, and modulation. The physical layer processing of the reference signal of the first type at the transmitting end may include but is not limited to: reference signal sequence CRC addition, reference signal sequence splitting, CRC addition to the split subsequences, channel coding, physical layer hybrid automatic repeat request (HARQ) processing, rate matching, code block concatenation, scrambling, modulation, layer mapping, precoding, antenna port mapping, resource mapping.

[0175] The resource mapping of the first part and the second part of the reference signal of the first type includes but is not limited to: the first part and the second part are respectively mapped to different time domain symbols; the first part and the second part are respectively mapped to different RBs on the same time domain symbol; the first part and the second part are respectively mapped to different REs on the same RB of the same time domain symbol. Each layer of the second part corresponds to one port of the first part. Any two ports of the first part can multiplex resources in a frequency division or code division manner.

[0176] The UE receives the reference signal of the first type, where the first part of the reference signal of the first type is used to decode the second part of the reference signal of the first type. The UE obtains the air interface channel estimation through the first part of the reference signal of the first type. The air interface channel estimation can be a matrix, and each element in it consists of an amplitude and a phase. This matrix has at least two dimensions. For example, the air interface channel matrix is three-dimensional, the number of elements in the first dimension is equal to the number of receiving end antenna ports, the number of elements in the second dimension is equal to the number of transmitting end antenna ports, and the number of elements in the third dimension is equal to the number of REs or the number of elements in the third dimension is equal to the number of RBs.

[0177] The UE sends the decoding result of the reference signal of the first type to the network (i.e., the second node). The UE sends the decoding result of the second part of the reference signal of the first type to the network. If the UE correctly decodes the second part of the reference signal of the first type, the UE sends an ACK to the network; if the UE cannot correctly demodulate the second part of the reference signal of the first type, the UE sends a NACK to the network.

[0178] The time domain behavior of the reference signal of the first type can be at least one of the following: periodic, semi-persistent, aperiodic.

[0179] For the periodic reference signal of the first type, the RRC reconfiguration message configures the basic information, period, time slot offset, modulation order, and channel coding rate of the reference signal.

[0180] For semi-persistent reference signals of the first type, the RRC reconfiguration message configures the basic information, period, slot offset, modulation order, and channel coding rate of the reference signal. Alternatively, the RRC reconfiguration message configures the basic information, period, and slot offset of the reference signal, and the MAC CE for activating / deactivating the semi-persistent reference signals of the first type indicates the modulation order and channel coding rate of the reference signal.

[0181] For aperiodic reference signals of the first type, the RRC reconfiguration message configures the basic information of the reference signal, and the DCI indicates the modulation order and channel coding rate of the reference signal.

[0182] The UE receives the configuration information of the reference signals of the first type sent by the network. The configuration information includes at least one of the following:

[0183] Configuration information of the resources of the reference signals of the first type, reporting configuration information of the reference signals of the first type, and configuration information of the basic information of the reference signals of the first type. Among them, the reporting configuration information of the reference signals of the first type at least indicates the configuration information of the PUCCH resources for sending ACK or NACK of the reference signals of the first type to the network. The configuration information of the basic information of the reference signals of the first type at least indicates the information of the time-domain behavior of the reference signals of the first type. Among them, for periodic and semi-persistent reference signals of the first type, the time-domain behavior information at least includes the period and slot offset.

[0184] For periodic and semi-persistent reference signals of the first type, the configuration information of the reference signals of the first type may include modulation order information and channel coding rate information, which are respectively used to indicate the modulation order and coding rate of the reference signals of the first type.

[0185] The configuration information of the basic information of the reference signals of the first type at least indicates the density information of the reference signals of the first type. The density information indicates how many resource elements (REs) the reference signals of the first type occupy in one resource block (RB). There are multiple options for configuring the density of the reference signals of the first type, and the UE can be configured with one of them. If the UE is not configured with the density information of the reference signals of the first type, the density of the desired reference signal is the default configuration.

[0186] The MAC CE for activating / deactivating the semi-persistent reference signals of the first type may include:

[0187] A field for indicating whether to activate or deactivate the indicated reference signals of the first type. When this field is set to 1, it indicates activation, otherwise it indicates deactivation;

[0188] One field is used to contain the index of the reference signal of the first type, and the index indicates the resources of the semi-persistent reference signal of the first type that should be activated or deactivated;

[0189] The MAC CE for activating / deactivating the semi-persistent reference signal of the first type may include: one field for indicating the modulation order and coding rate of the reference signal of the first type, and the value of this field corresponds to an MCS index. The MCS index corresponds to a modulation order and a coding rate, and the modulation order and coding rate correspond to a row in the table of MCS indices. The UE uses the MCS index and the table of MCS indices to determine the modulation order and coding rate of the reference signal of the first type.

[0190] The MAC CE for activating / deactivating the semi-persistent reference signal of the first type may include: one field for indicating the table of MCS indices used by the UE. The UE may be configured with multiple tables of MCS indices.

[0191] The DCI format for triggering the aperiodic reference signal of the first type may be at least one of the following: DCI format 1-0, DCI format 1-1, DCI format 1-2, DCI format 4-0, DCI format 4-1, DCI format 4-2. A field in the DCI is used to trigger the aperiodic reference signal of the first type. For example, the DCI contains a field that indicates a status. One status corresponds to a reference signal resource of the first type and a PUCCH resource. The correspondence may be included in the configuration information of the reference signal of the first type. The PUCCH resource is used to transmit the ACK or NACK of the reference signal of the first type.

[0192] As another possible implementation, taking the reference signal of the first type as the uplink reference signal of the first type as an example, after the first node receives the second indication information (i.e., S501) sent by the second node, the first node may also send the uplink reference signal of the first type to the second node. The uplink reference signal of the first type includes a part known to the second node and a part unknown to the second node. Then, the first node may receive the second verification information sent by the second node, and the second verification information is used to indicate whether the part unknown to the second node in the uplink reference signal of the first type is decoded successfully or decoded failed.

[0193] Exemplarily, the reference signal of the first type may include two parts: the first part is the part known to the network (i.e., the second node); the second part is the part unknown to the network. The physical layer processing of the reference signal of the first type at the UE (i.e., the first node) at least includes: CRC addition, channel coding, and modulation. Among them, at least the second part of the reference signal of the first type includes: channel coding and modulation. The physical layer processing of the reference signal of the first type at the transmitting end may include but is not limited to: CRC addition to the reference signal sequence, segmentation of the reference signal sequence, CRC addition to the segmented subsequences, channel coding, physical layer HARQ processing, rate matching, code block concatenation, scrambling, modulation, layer mapping, precoding, antenna port mapping, resource mapping.

[0194] The resource mapping of the first part and the second part of the reference signal of the first type includes but is not limited to: the first part and the second part are respectively mapped to different time domain symbols; the first part and the second part are respectively mapped to different RBs in the same time domain symbol; the first part and the second part are respectively mapped to different REs in the same RB of the same time domain symbol. Each layer of the second part corresponds to one port of the first part. Any two ports of the first part can multiplex resources in a frequency division or code division manner.

[0195] The UE transmits the reference signal of the first type, where the first part of the reference signal of the first type is used to decode the second part of the reference signal of the first type. The network (i.e., the second node) obtains the air interface channel estimation through the first part of the reference signal of the first type. The air interface channel estimation can be a matrix, and each element in it consists of an amplitude and a phase. This matrix has at least two dimensions. For example, the air interface channel matrix is three-dimensional, the number of elements in the first dimension is equal to the number of receiving end antenna ports, the number of elements in the second dimension is equal to the number of transmitting end antenna ports, and the number of elements in the third dimension is equal to the number of REs or the number of elements in the third dimension is equal to the number of RBs.

[0196] The network decodes the reference signal of the first type. The network does not need to send the decoding result of the reference signal of the first type to the UE. The UE does not need the decoding result of the reference signal of the first type.

[0197] The time domain behavior of the reference signal of the first type can be at least one of the following: periodic, semi-persistent, aperiodic.

[0198] For the periodic reference signal of the first type, the RRC reconfiguration message configures the basic information, period, time slot offset, modulation order, and channel coding rate of the reference signal.

[0199] For semi-persistent reference signals of the first type, the RRC reconfiguration message configures the basic information, period, slot offset, modulation order, and channel coding rate of the reference signal. Alternatively, the RRC reconfiguration message configures the basic information, period, and slot offset of the reference signal, and the MAC CE indicating activation / deactivation of the semi-persistent reference signals of the first type indicates the modulation order and channel coding rate of the reference signal.

[0200] For aperiodic reference signals of the first type, the RRC reconfiguration message configures the basic information of the reference signal, and the DCI indicates the modulation order and channel coding rate of the reference signal.

[0201] The UE receives the configuration information of the reference signals of the first type sent by the network. The configuration information includes at least one of the following:

[0202] The configuration information of the resources of the reference signals of the first type, and the configuration information of the basic information of the reference signals of the first type. The configuration information of the basic information of the reference signals of the first type indicates at least the information on the time-domain behavior of the reference signals of the first type. Among them, for periodic and semi-persistent reference signals of the first type, the time-domain behavior information includes at least the period and slot offset.

[0203] For periodic and semi-persistent reference signals of the first type, the configuration information of the reference signals of the first type may include the modulation order information and the channel coding rate information, which are respectively used to indicate the modulation order and coding rate of the reference signals of the first type.

[0204] The configuration information of the basic information of the reference signals of the first type indicates at least the density information of the reference signals of the first type. The density information indicates how many resource elements (REs) the reference signals of the first type occupy in one resource block (RB). There are multiple options for configuring the density of the reference signals of the first type, and the UE can be configured with one of them. If the UE is not configured with the density information of the reference signals of the first type, the density of the desired reference signals is the default configuration.

[0205] The MAC CE for activating / deactivating semi-persistent reference signals of the first type may include:

[0206] A field for indicating whether to activate or deactivate the indicated reference signals of the first type. The field is set to 1 for activation and otherwise for deactivation;

[0207] A field for including the index of the reference signals of the first type. The index indicates the semi-persistent reference signal resources of the first type that should be activated or deactivated;

[0208] The MAC CE for activating / deactivating the semi-persistent first type of reference signal may include: a field for indicating the modulation order and coding rate of the first type of reference signal, where the value of the field corresponds to an MCS index, MCSindex. The MCS index corresponds to a modulation order and a coding rate, and the modulation order and coding rate correspond to a row in the table of MCS indices. The UE determines the modulation order and coding rate of the first type of reference signal using the MCS index and the table of MCS indices.

[0209] The MAC CE for activating / deactivating the semi-persistent first type of reference signal may include: a field for indicating the table of MCS indices used by the UE. The UE may be configured with multiple tables of MCS indices.

[0210] The DCI format for triggering the aperiodic first type of reference signal may be at least one of the following: DCI format 0-0, DCI format 0-1, DCI format 0-2. A field in the DCI is used to trigger the aperiodic first type of reference signal. For example, the DCI contains a field that indicates a status. A status corresponds to a first type of reference signal resource. The correspondence may be included in the configuration information of the first type of reference signal.

[0211] Embodiments of the present disclosure also provide a communication method, which is applied to a second node, as Figure 6 shown, and the communication method may include:

[0212] S601. Send second indication information to the first node.

[0213] It should be noted that for the introduction of the second indication information, reference may be made to the description in S501 of the above embodiments, and details are not described herein.

[0214] In some embodiments, after the second node sends the second indication information (i.e., S601) to the first node, the second node may perform different transceiver operations according to the first type of uplink reference signal or the first type of downlink reference signal indicated by the second indication information.

[0215] As a possible implementation, the second node may send the first type of downlink reference signal to the first node and receive the first verification information sent by the first node.

[0216] Among them, the first type of downlink reference signal includes a part known to the first node and a part unknown to the first node; the first verification information is used to indicate whether the part unknown to the first node in the first type of downlink reference signal is decoded successfully or decoded failed.

[0217] As another possible implementation, the second node may receive a first type of uplink reference signal sent by the first node and send second verification information to the first node.

[0218] Among them, the first type of uplink reference signal includes a part known to the second node and a part unknown to the second node; the second verification information is used to indicate whether the part unknown to the second node in the first type of uplink reference signal is decoded successfully or decoded failed.

[0219] Next, taking the interaction between the first node and the second node as an example, the communication method provided in the above embodiment will be introduced. As Figure 7 shown, it includes:

[0220] S701. The second node sends second indication information to the first node.

[0221] S702. The first node receives the second indication information sent by the second node.

[0222] In summary, whether it is the first type of physical channel or the first type of reference signal, they are all used in the same or similar way to collect the training data required for the reinforcement learning-based adaptive MCS (that is, belonging to an overall concept) to distinguish from the physical channel for transmitting service data. In this way, conflicts in the transmission of service data during the reinforcement learning-based adaptive MCS process can be avoided, and further the impact of the reinforcement learning-based adaptive MCS on the transmitted service data can be reduced.

[0223] It can be understood that in order to implement the above functions, the communication device includes the corresponding hardware structure and / or software module for executing each function. Those skilled in the art should easily realize that, combined 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 certain function is executed in the way of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present disclosure.

[0224] The embodiments of the present disclosure can divide the communication device into functional modules according to the above method embodiments. 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 integrated module can be implemented in the form of hardware or software. It should be noted that the division of modules in the embodiments of the present disclosure is illustrative, only a logical function division, and there may be other division methods in actual implementation. Next, an example will be given by dividing each functional module corresponding to each function.

[0225] Figure 8 It is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure. Figure 1 The communication device can be applied to a first node and execute the Figure 2 communication method shown above, as well as Figure 4 the embodiments on the first node side in Figure 8 As shown, the communication device 800 includes: a receiving module 801.

[0226] The receiving module 801 is configured to receive first indication information sent by a second node, where the first indication information is used to indicate a first type of physical channel, and the first type of physical channel is used to participate in a reinforcement learning-based adaptive modulation and coding scheme (MCS). The first type of physical channel satisfies a first feature, and the first feature includes at least one of the following:

[0227] It does not carry information originating from the upper layer of the protocol stack;

[0228] It is not retransmitted;

[0229] The decoding result is not used for the control of the block error rate (BLER);

[0230] The decoding result is not used as a trigger condition for other communication processes other than the adaptive modulation and coding scheme (MCS).

[0231] In some embodiments, that the first type of physical channel does not carry information originating from the upper layer of the protocol stack includes: the transport block of the first type of physical channel is a random bit sequence or a pseudo-random bit sequence.

[0232] In some embodiments, that the first type of physical channel is not retransmitted includes: when the decoding result of the first type of physical channel at the receiving node is correct or incorrect, the content carried by the first type of physical channel is discarded by the physical layer of the receiving node.

[0233] In some embodiments, that the decoding result of the first type of physical channel is not used for the control of the block error rate (BLER) includes: the decoding result of the first type of physical channel is not used to calculate the block error rate (BLER).

[0234] In some embodiments, that the decoding result of the first type of physical channel is not used as a trigger condition for other communication processes other than the adaptive modulation and coding scheme (MCS) includes: the decoding result of the first type of physical channel is not used as a trigger condition for layer 1 processes or layer 2 processes or layer 3 processes of the radio access network.

[0235] In some embodiments, the first type of physical channel includes a first type of physical downlink shared channel carrying a first type of media access control control element (MAC CE), and the first type of physical channel does not carry information originating from the upper layers of the protocol stack, including at least one of the following:

[0236] The first type of physical downlink shared channel does not carry other types of media access control control elements (MAC CEs) other than the first type of media access control control element (MAC CE);

[0237] The first type of physical downlink shared channel does not carry media access control service data units (MAC SDUs).

[0238] In some embodiments, the logical channel identifier in the media access control sub-header identifier of the first type of media access control control element (MAC CE) is a target identifier, and the target identifier is different from the logical channel identifiers in the media access control sub-header identifiers of other types of media access control control elements (MAC CEs).

[0239] In some embodiments, the first type of physical channel includes a first type of physical uplink shared channel; the communication device 800 may further include: a sending module 802. The sending module 802 is configured to send the first type of physical uplink shared channel and other types of physical uplink shared channels to a second node on the same time-domain resource; wherein, the other types of physical uplink shared channels do not satisfy the first feature; the time-domain resource includes at least one of the following: time slot, subframe, symbol.

[0240] In some embodiments, the first type of physical channel includes a first type of physical downlink shared channel; the receiving module 801 is further configured to receive the first type of physical downlink shared channel and other types of physical downlink shared channels sent by a second node on the same time-domain resource; wherein, the other types of physical downlink shared channels do not satisfy the first feature; the time-domain resource includes at least one of the following: time slot, subframe, symbol.

[0241] In some embodiments, the first indication information includes: the number and position of resource elements (REs) mapped by the first type of physical channel in each resource block (RB).

[0242] Figure 9 It is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure Figure 2 , the communication device can be applied to a first node and execute the above Figure 5 shown communication method, and Figure 7 the embodiments on the first node side in Figure 9 As shown, the communication device 900 includes: a receiving module 901.

[0243] A receiving module 901, configured to receive second indication information sent by a second node, where the second indication information is used to indicate a first type of reference signal, and the first type of reference signal is used to participate in a reinforcement learning-based adaptive modulation and coding scheme (MCS). Wherein, the first type of reference signal satisfies at least one of the following:

[0244] The first type of reference signal includes a part known to the receiving node and a part unknown to the receiving node;

[0245] The part of the first type of reference signal known to the receiving node is used to decode the part unknown to the receiving node;

[0246] The physical layer processing of the first type of reference signal includes channel coding and modulation.

[0247] In some embodiments, the part of the first type of reference signal known to the receiving node is used to decode the part unknown to the receiving node, including: the part of the first type of reference signal known to the receiving node is used for air interface channel estimation, and the air interface channel estimation is used to decode the part unknown to the receiving node in the first type of reference signal.

[0248] In some embodiments, the time domain behavior of the first type of reference signal is semi-persistent, and the media access control control element (MAC CE) associated with the first type of reference signal includes at least one of the following:

[0249] A first field for indicating the modulation order and coding rate of the first type of reference signal;

[0250] A second field for indicating the modulation and coding scheme (MCS) table applied by the first type of reference signal.

[0251] In some embodiments, the first type of reference signal includes a first type of downlink reference signal; the communication device 900 may further include: a sending module 902. The receiving module 901 is further configured to receive the first type of downlink reference signal sent by the second node, where the first type of downlink reference signal includes a part known to the first node and a part unknown to the first node; the sending module 902 is configured to send first verification information to the second node, where the first verification information is used to indicate whether the decoding of the part unknown to the first node in the first type of downlink reference signal is successful or failed.

[0252] Figure 10 is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure Figure 3 , the communication device may be applied to the second node and execute the above Figure 3 shown communication method, and Figure 4 the embodiments on the second node side in Figure 10 As shown, the communication device 1000 includes: a sending module 1001.

[0253] A sending module 1001, configured to send first indication information to a first node, where the first indication information is used to indicate a first type of physical channel, the first type of physical channel is used to participate in a reinforcement learning-based adaptive modulation and coding scheme (MCS), and the first type of physical channel satisfies a first feature, where the first feature includes at least one of the following:

[0254] Does not carry information originating from a higher layer of the protocol stack;

[0255] Is not retransmitted;

[0256] The decoding result is not used for controlling the block error rate (BLER);

[0257] The decoding result is not used as a triggering condition for other communication processes other than the adaptive modulation and coding scheme (MCS).

[0258] In some embodiments, that the first type of physical channel does not carry information originating from a higher layer of the protocol stack includes: the transport block of the first type of physical channel is a random bit sequence or a pseudo-random bit sequence.

[0259] In some embodiments, that the first type of physical channel is not retransmitted includes: when the decoding result of the first type of physical channel at the receiving node is correct or incorrect, the content carried by the first type of physical channel is discarded by the physical layer of the receiving node.

[0260] In some embodiments, that the decoding result of the first type of physical channel is not used for controlling the block error rate (BLER) includes: the decoding result of the first type of physical channel is not used for calculating the block error rate (BLER).

[0261] In some embodiments, that the decoding result of the first type of physical channel is not used as a triggering condition for other communication processes other than the adaptive modulation and coding scheme (MCS) includes: the decoding result of the first type of physical channel is not used as a triggering condition for layer 1 processes, layer 2 processes, or layer 3 processes of the radio access network.

[0262] In some embodiments, the first type of physical channel includes a first type of physical downlink shared channel carrying a first type of media access control control element (MAC CE), and that the first type of physical channel does not carry information originating from a higher layer of the protocol stack includes at least one of the following:

[0263] The first type of physical downlink shared channel does not carry other types of media access control control elements (MAC CE) other than the first type of media access control control element (MAC CE);

[0264] The first type of physical downlink shared channel does not carry a media access control service data unit (MAC SDU).

[0265] In some embodiments, the logical channel identifier in the media access control sub-header identifier of the media access control control element (MAC CE) of the first type is a target identifier, and the target identifier is different from the logical channel identifiers in the media access control sub-header identifiers of other types of media access control control elements (MAC CEs).

[0266] In some embodiments, the first type of physical channel includes a first type of physical uplink shared channel; the communication device 1000 may further include: a receiving module 1002. The receiving module 1002 is configured to receive the first type of physical uplink shared channel and other types of physical uplink shared channels sent by the first node on the same time-domain resource; wherein, the other types of physical uplink shared channels do not meet the first feature; the time-domain resource includes at least one of the following: a time slot, a subframe, and a symbol.

[0267] In some embodiments, the first type of physical channel includes a first type of physical downlink shared channel; the sending module 1001 is further configured to send the first type of physical downlink shared channel and other types of physical downlink shared channels to the first node on the same time-domain resource; wherein, the other types of physical downlink shared channels do not meet the first feature; the time-domain resource includes at least one of the following: a time slot, a subframe, and a symbol.

[0268] In some embodiments, the first indication information includes: the number and position of resource elements (REs) mapped by the first type of physical channel in each resource block (RB).

[0269] Figure 11 It is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure Figure 4 , the communication device may be applied to a second node and execute the above Figure 6 shown communication method, and Figure 7 the embodiments on the second node side in Figure 11 As shown, the communication device 1100 includes: a sending module 1101.

[0270] The sending module 1101 is configured to send second indication information to the first node, where the second indication information is used to indicate a first type of reference signal, and the first type of reference signal is used to participate in a reinforcement learning-based adaptive modulation and coding scheme (MCS). Wherein, the first type of reference signal meets at least one of the following:

[0271] The first type of reference signal includes a part known to the receiving node and a part unknown to the receiving node;

[0272] The part of the first type of reference signal known to the receiving node is used to decode the part unknown to the receiving node;

[0273] The physical layer processing of the reference signals of the first type includes channel coding and modulation.

[0274] In some embodiments, the part of the reference signals of the first type that is known to the receiving node is used to decode the part that is unknown to the receiving node, including: the part of the reference signals of the first type that is known to the receiving node is used for air interface channel estimation, and the air interface channel estimation is used to decode the part of the reference signals of the first type that is unknown to the receiving node.

[0275] In some embodiments, the time-domain behavior of the reference signals of the first type is semi-persistent, and the media access control control element MAC CE related to the reference signals of the first type includes at least one of the following:

[0276] A first field for indicating the modulation order and coding rate of the reference signals of the first type;

[0277] A second field for indicating the modulation and coding scheme MCS table applied to the reference signals of the first type.

[0278] In some embodiments, the reference signals of the first type include the downlink reference signals of the first type; the communication device 1100 may further include: a receiving module 1102.

[0279] A transmitting module 1101 is further configured to transmit the downlink reference signals of the first type to the first node, and the downlink reference signals of the first type include a part known to the first node and a part unknown to the first node; a receiving module 1102 is configured to receive the first verification information sent by the first node, and the first verification information is used to indicate whether the decoding of the part unknown to the first node in the downlink reference signals of the first type is successful or failed.

[0280] When the functions of the above integrated modules are implemented in the form of hardware, the embodiments of the present disclosure provide another possible structural schematic diagram of the communication device involved in the above embodiments Figure 5 . As Figure 12 shown, the communication device 1200 includes: a processor 1202, a bus 1204. Optionally, the communication device may further include a memory 1201; optionally, the communication device may further include a communication interface 1203.

[0281] The processor 1202 can be a device that implements or executes various exemplary logical blocks, modules, and circuits described in connection with the embodiments of the present disclosure. The processor 1202 can 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, transistor logic device, hardware component, or any combination thereof. It can implement or execute various exemplary logical blocks, modules, and circuits described in connection with the embodiments of the present disclosure. The processor 1202 can 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, etc.

[0282] The communication interface 1203 is used to connect to other devices through a communication network. The communication network can be an Ethernet, a radio access network, a wireless local area network (WLAN), etc.

[0283] The memory 1201 can 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. It can also be an electrically erasable programmable read-only memory (EEPROM), a magnetic 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.

[0284] As a possible implementation, the memory 1201 can exist independently of the processor 1202. The memory 1201 can be connected to the processor 1202 through a bus 1204 and is used to store instructions or program code. When the processor 1202 calls and executes the instructions or program code stored in the memory 1201, the communication method provided by the embodiments of the present disclosure can be implemented.

[0285] In another possible implementation, the memory 1201 can also be integrated with the processor 1202.

[0286] The bus 1204 can be an extended industry standard architecture (EISA) bus, etc. The bus 1204 can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 12 only a thick line is used to represent it in the figure, but it does not mean that there is only one bus or one type of bus.

[0287] Some embodiments of the present disclosure provide a computer-readable storage medium (e.g., a non-transitory computer-readable storage medium) storing computer program instructions, which, when running on a computer, cause the computer to execute the communication method described in any one of the above embodiments.

[0288] Exemplarily, the above computer-readable storage medium may include, but is not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes, etc.), optical disks (e.g., compact disks (CDs), digital versatile disks (DVDs), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memories (EPROMs), cards, sticks, or key drives, etc.). The various computer-readable storage media described in the present disclosure may represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0289] Embodiments of the present disclosure provide a computer program product containing instructions, which, when running on a computer, cause the computer to execute the communication method described in any one of the above embodiments.

[0290] As described above, the above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present disclosure should be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A communication method, characterized in that: Applied to the first node, the method comprises: receiving first indication information sent by a second node, where the first indication information is used to indicate a first type of physical channel, where the first type of physical channel is used to participate in an adaptive modulation and coding scheme MCS based on reinforcement learning, where the first type of physical channel satisfies a first feature, and the first feature includes at least one of the following: It does not carry information originating from higher layers of the protocol stack; Not retransmitted; The decoding result is not used for the control of block error rate BLER; The decoding result is not used as a trigger condition for other communication processes other than the adaptive modulation and coding scheme MCS.

2. The method according to claim 1, characterized in that The first type of physical channel does not carry information originating from a higher layer of the protocol stack, including: The transport block of the first type of physical channel is a random bit sequence or a pseudo-random bit sequence.

3. The method according to claim 1, characterized in that The first type of physical channel is not retransmitted, including: When the decoding result of the first type of physical channel by the receiving node is correct or incorrect, the content carried by the first type of physical channel is discarded by the physical layer of the receiving node.

4. The method according to claim 1, characterized in that: The decoding result of the first type of physical channel is not used for controlling a block error rate BLER, including: The decoding result of the first type of physical channel is not used to calculate the block error rate BLER.

5. The method according to claim 1, characterized in that The decoding result of the first type of physical channel is not used for triggering conditions of other communication processes other than the adaptive modulation and coding scheme MCS, including: The decoding result of the first type of physical channel is not used as a trigger condition for a layer 1 process, a layer 2 process, or a layer 3 process of a wireless access network.

6. The method according to claim 1, characterized in that The first type of physical channel includes a first type of physical downlink shared channel carrying a first type of media access control control element MAC CE, and the first type of physical channel does not carry information originating from a high layer of a protocol stack, including at least one of the following: The first type of physical downlink shared channel does not carry other types of media access control control elements MAC CE except the first type of media access control control element MAC CE; The first type of physical downlink shared channel does not carry a media access control service data unit MAC SDU.

7. The method according to claim 6, characterized in that The logical channel identifier in the media access control subheader identifier of the first type of media access control control unit MAC CE is a target identifier, and the target identifier is different from the logical channel identifier in the media access control subheader identifier of the other types of media access control control units MAC CE.

8. The method according to claim 1, characterized in that The first type of physical channel includes the first type of physical uplink shared channel; the method further includes: Sending the first type of physical uplink shared channel and other types of physical uplink shared channels to the second node on the same time domain resources; Among them, the other types of physical uplink shared channels do not meet the first characteristic; the time domain resources include at least one of the following: time slot, subframe, symbol.

9. The method according to claim 1, characterized in that: The first type of physical channel includes the first type of physical downlink shared channel; the method further includes: receiving, on the same time domain resource, a physical downlink shared channel of the first type and other types of physical downlink shared channels sent by the second node; Among them, the other types of physical downlink shared channels do not meet the first characteristic; the time domain resources include at least one of the following: time slot, subframe, symbol.

10. The method according to claim 1, characterized in that The first indication information includes: the number and position of resource elements RE mapped to the first type of physical channel in each resource block RB.

11. A communication method, characterized in that: Applied to the first node, the method comprises: receiving second indication information sent by a second node, where the second indication information is used to indicate a first type of reference signal, where the first type of reference signal is used to participate in an adaptive modulation and coding scheme MCS based on reinforcement learning, wherein the first type of reference signal satisfies at least one of the following: The first type of reference signal includes a portion known to a receiving node and a portion unknown to the receiving node; The part of the first type of reference signal known to the receiving node is used to decode the part unknown to the receiving node; The physical layer processing of the first type of reference signal includes channel coding and modulation.

12. The method according to claim 11, characterized in that The part of the first type of reference signal known to the receiving node is used to decode the part unknown to the receiving node, including: The portion of the first type of reference signal known to the receiving node is used for air interface channel estimation, and the air interface channel estimation is used to decode the portion of the first type of reference signal unknown to the receiving node.

13. The method according to claim 11, characterized in that The time domain behavior of the first type of reference signal is semi-persistent, and the media access control element MAC CE related to the first type of reference signal includes at least one of the following: a first field for indicating a modulation order and a coding rate of a reference signal of the first type; The second field of the MCS table is used to indicate the modulation and coding scheme applied to the reference signal of the first type.

14. The method according to claim 11, characterized in that The first type of reference signal includes the first type of downlink reference signal; the method further includes: receiving a downlink reference signal of the first type sent by the second node, where the downlink reference signal of the first type includes a part known to the first node and a part unknown to the first node; First verification information is sent to the second node, where the first verification information is used to indicate whether a portion of the first type of downlink reference signal unknown to the first node is successfully decoded or failed to be decoded.

15. A communication method, characterized in that: Applied to the second node, the method comprises: Sending first indication information to a first node, where the first indication information is used to indicate a first type of physical channel, where the first type of physical channel is used to participate in an adaptive modulation and coding scheme MCS based on reinforcement learning, where the first type of physical channel satisfies a first feature, and the first feature includes at least one of the following: It does not carry information originating from higher layers of the protocol stack; Not retransmitted; The decoding result is not used for the control of block error rate BLER; The decoding result is not used as a trigger condition for other communication processes other than the adaptive modulation and coding scheme MCS.

16. The method according to claim 15, characterized in that The first type of physical channel does not carry information originating from a higher layer of the protocol stack, including: The transport block of the first type of physical channel is a random bit sequence or a pseudo-random bit sequence.

17. The method according to claim 15, characterized in that The first type of physical channel is not retransmitted, including: When the decoding result of the first type of physical channel by the receiving node is correct or incorrect, the content carried by the first type of physical channel is discarded by the physical layer of the receiving node.

18. The method according to claim 15, characterized in that The decoding result of the first type of physical channel is not used for controlling a block error rate BLER, including: The decoding result of the first type of physical channel is not used to calculate the block error rate BLER.

19. The method according to claim 15, characterized in that The decoding result of the first type of physical channel is not used for triggering conditions of other communication processes other than the adaptive modulation and coding scheme MCS, including: The decoding result of the first type of physical channel is not used as a trigger condition for a layer 1 process, a layer 2 process, or a layer 3 process of a wireless access network.

20. The method according to claim 15, characterized in that The first type of physical channel includes a first type of physical downlink shared channel carrying a first type of media access control control element MAC CE, and the first type of physical channel does not carry information originating from a high layer of a protocol stack, including at least one of the following: The first type of physical downlink shared channel does not carry other types of media access control control elements MAC CE except the first type of media access control control element MAC CE; The first type of physical downlink shared channel does not carry a media access control service data unit MAC SDU.

21. The method according to claim 20, characterized in that The logical channel identifier in the media access control subheader identifier of the first type of media access control control unit MAC CE is a target identifier, and the target identifier is different from the logical channel identifier in the media access control subheader identifier of the other types of media access control control units MAC CE.

22. The method according to claim 15, characterized in that The first type of physical channel includes the first type of physical uplink shared channel; the method further includes: receiving, on the same time domain resource, the physical uplink shared channel of the first type and other types of physical uplink shared channels sent by the first node; Among them, the other types of physical uplink shared channels do not meet the first characteristic; the time domain resources include at least one of the following: time slot, subframe, symbol.

23. The method according to claim 15, characterized in that The first type of physical channel includes the first type of physical downlink shared channel; the method further includes: Sending the first type of physical downlink shared channel and other types of physical downlink shared channels to the first node on the same time domain resources; Among them, the other types of physical downlink shared channels do not meet the first characteristic; the time domain resources include at least one of the following: time slot, subframe, symbol.

24. The method according to claim 15, characterized in that The first indication information includes: the number and position of resource elements RE mapped to the first type of physical channel in each resource block RB.

25. A communication method, characterized in that: Applied to the second node, the method comprises: Sending second indication information to the first node, where the second indication information is used to indicate a first type of reference signal, where the first type of reference signal is used to participate in an adaptive modulation and coding scheme MCS based on reinforcement learning, wherein the first type of reference signal satisfies at least one of the following: The first type of reference signal includes a portion known to a receiving node and a portion unknown to the receiving node; The part of the first type of reference signal known to the receiving node is used to decode the part unknown to the receiving node; The physical layer processing of the first type of reference signal includes channel coding and modulation.

26. The method according to claim 25, characterized in that The part of the first type of reference signal known to the receiving node is used to decode the part unknown to the receiving node, including: The portion of the first type of reference signal known to the receiving node is used for air interface channel estimation, and the air interface channel estimation is used to decode the portion of the first type of reference signal unknown to the receiving node.

27. The method according to claim 25, characterized in that The time domain behavior of the first type of reference signal is semi-persistent, and the media access control element MAC CE related to the first type of reference signal includes at least one of the following: a first field for indicating a modulation order and a coding rate of a reference signal of the first type; The second field of the MCS table is used to indicate the modulation and coding scheme applied to the reference signal of the first type.

28. The method according to claim 25, characterized in that The first type of reference signal includes the first type of downlink reference signal; the method further includes: Sending a downlink reference signal of the first type to the first node, where the downlink reference signal of the first type includes a part known to the first node and a part unknown to the first node; First verification information sent by the first node is received, where the first verification information is used to indicate whether a portion of the first type of downlink reference signal unknown to the first node is successfully decoded or failed to be decoded.

29. A communication device, characterized in that: include: Memory and processor; Memory and processor coupling; 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, characterized in that: The computer-readable storage medium stores computer instructions, and when the computer instructions are executed on a computer, the computer is caused to execute the method according to any one of claims 1 to 28.

31. A computer program product, characterized in that The computer program product comprises computer program instructions which, when executed, implement the method according to any one of claims 1 to 28.

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