A receiving and transmitting method of a physical channel, a communication device and a storage medium

Abstract

The application provides a receiving and sending method of a physical channel, a communication device and a storage medium, relates to the technical field of communication, and is used for selecting a suitable physical channel for decoding when a first physical channel and a second physical channel conflict in a time domain, and guaranteeing normal communication of a communication system. The method comprises the following steps: a first communication node firstly determines a first processing duration, and determines a physical channel to be decoded from the first physical channel and the second physical channel according to the first processing duration, and decodes the physical channel to be decoded.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a method for receiving and transmitting physical channels, a communication device, and a storage medium. Background Technology

[0002] In 5G NR, the Reduced Capability User Equipment (RedCap UE) of Release-18 has a maximum data buffering capacity of 20MHz and a maximum physical downlink shared channel (PDSCH) data processing capacity of 5MHz. This means that the processing bandwidth for PDSCH in Release-18 RedCap UE is reduced, supporting a maximum bandwidth of 5MHz. Therefore, when the Release-18 RedCap UE buffers PDSCH data with a bandwidth greater than 5MHz, it needs to process that PDSCH data multiple times, with each processing session not exceeding 5MHz of data. Consequently, the processing latency is significant when the Release-18 RedCap UE is processing physical channels with larger bandwidths, which may affect the scheduling of uplink or downlink physical channels that conflict in the time domain. Summary of the Invention

[0003] This application provides a method for receiving and transmitting physical channels, a communication device, and a storage medium, which are used to select a suitable physical channel for decoding when the first physical channel and the second physical channel conflict in the time domain, thereby ensuring normal communication of the communication system.

[0004] On the one hand, a method for receiving physical channels is provided, applied to a first communication node, the method comprising:

[0005] Determine the first processing time;

[0006] Based on the first processing time, the physical channel to be decoded is determined from the first physical channel and the second physical channel;

[0007] Decode the physical channel to be decoded.

[0008] On the other hand, a method for transmitting data through a physical channel is provided, applied to a first communication node, the method comprising:

[0009] Receive third physical channel;

[0010] If the bandwidth of the third physical channel is greater than the target bandwidth of the first communication node, determine the second processing duration;

[0011] Based on the second processing time, determine the transmission time of the fourth physical channel;

[0012] The fourth physical channel is transmitted based on the transmission time.

[0013] On the other hand, a communication device is provided for use in a first communication node, the device comprising: a processing module and a decoding module.

[0014] The processing module is used to determine the first processing duration;

[0015] The processing module is also configured to determine the physical channel to be decoded from the first physical channel and the second physical channel based on the first processing duration;

[0016] The decoding module is also used to decode the physical channel to be decoded.

[0017] On the other hand, a communication device is provided for use in a first communication node, the device comprising: a transceiver module and a processing module.

[0018] The transceiver module is used to receive data from a third physical channel.

[0019] The processing module is used to determine the second processing duration when the bandwidth of the third physical channel is greater than the target bandwidth of the first communication node.

[0020] The processing module is also used to determine the transmission time of the fourth physical channel based on the second processing duration;

[0021] The transceiver module is also used to transmit a fourth physical channel based on the transmission time.

[0022] In another aspect, a communication device is provided, comprising: a memory and a processor; the memory and the processor are coupled; the memory is used to store computer program instructions executable by the processor; the processor executes the computer program instructions to implement the method described in any of the above embodiments.

[0023] In another aspect, a computer-readable storage medium is provided, on which computer program instructions are stored, which, when executed on a computer (e.g., a communication device), implement the method described in any of the above embodiments.

[0024] In another aspect, a computer program product is provided, which includes computer program instructions that, when executed, implement the method described in any of the above embodiments.

[0025] The technical solution provided in this application addresses the issue that, due to the significant processing latency of Release-18 RedCap UE when processing physical channels with large bandwidths, the first and second physical channels may conflict in the time domain, preventing the first communication node from simultaneously decoding both. Therefore, the first communication node can select a suitable physical channel to be decoded from the first and second physical channels and decode that channel. This ensures that the first communication node can promptly obtain the important information carried by the physical channel to be decoded, thereby guaranteeing normal communication of the communication system.

[0026] Furthermore, if the bandwidth of the third physical channel is greater than the target bandwidth of the first communication node, a reasonable transmission time for the fourth physical channel is determined based on the second processing time to avoid conflicts between processing the third physical channel and transmitting the fourth physical channel. Attached Figure Description

[0027] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of the present invention and do not constitute a limitation on the technical solutions of the present invention.

[0028] Figure 1 This application provides a schematic diagram of the architecture of a communication system.

[0029] Figure 2 A flowchart illustrating a method for receiving a physical channel provided in an embodiment of this application;

[0030] Figure 3 A flowchart illustrating a method for transmitting data through a physical channel, as provided in an embodiment of this application;

[0031] Figure 4 A flowchart illustrating a method for determining the characteristics of a first communication node, provided in an embodiment of this application;

[0032] Figure 5 This is a schematic diagram of the composition of a communication device provided in an embodiment of this application;

[0033] Figure 6 A schematic diagram illustrating the composition of another communication device provided in an embodiment of this application;

[0034] Figure 7 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0037] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0038] For Release-18 RedCap UEs, when processing the PDSCH corresponding to a random access response (RAR), if the RAR PDSCH bandwidth exceeds the maximum bandwidth supported by the Release-18 RedCap UE, the processing latency of the Release-18 RedCap UE will increase. Furthermore, the transmission time of the PDSCH scheduled for Message 3 (Msg3) under this RAR will be affected by this latency. Alternatively, if another PDSCH is scheduled consecutively in time, the processing times of these two PDSCHs will overlap, and the UE may be unable to process all PDSCHs.

[0039] In view of this, embodiments of this application provide a method for receiving a physical channel. The method includes: a first communication node first determining a first processing duration, and based on the first processing duration, determining a physical channel to be decoded from a first physical channel and a second physical channel, and decoding the physical channel to be decoded. Thus, when the first physical channel and the second physical channel may conflict in the time domain, a suitable physical channel to be decoded is selected from the first physical channel and the second physical channel for decoding, thereby ensuring normal communication of the communication system.

[0040] Furthermore, embodiments of this application also provide a method for transmitting a physical channel. The method includes: a first communication node receiving a third physical channel, the bandwidth of which is greater than the target bandwidth of the first communication node; determining a second processing duration; determining a transmission time for a fourth physical channel based on the second processing duration; and transmitting the fourth physical channel based on the transmission time. Thus, when the bandwidth of the third physical channel is greater than the target bandwidth of the first communication node, a reasonable transmission time for the fourth physical channel is determined based on the second processing duration to avoid the transmission of the fourth physical channel being affected by the additional processing time required for processing the third physical channel.

[0041] The technical solutions provided in this application can be applied to various mobile communication networks, such as New Radio (NR) mobile communication networks using 5th generation mobile networks (5G), future mobile communication networks, or multiple communication convergence systems, etc. This application does not limit them.

[0042] The network architecture of the mobile communication network (including but not limited to 3G, 4G, 5G, and future mobile communication networks) in this application embodiment may include network-side devices (e.g., including but not limited to base stations) and receiving-side devices (e.g., including but not limited to terminals). It should be understood that in this application embodiment, the first communication node (also referred to as the first node device) may be a receiving-side device, and the second communication node (also referred to as the second node device) may be a network-side device; alternatively, the first node may be a network-side device, and the second node may be a receiving-side device. Alternatively, in device-to-device communication, both the first and second communication nodes may be terminals or base stations.

[0043] For example, Figure 1 The diagram shows a schematic representation of a communication system according to an embodiment of this application. Figure 1 As shown, the communication system 100 may include one or more first communication nodes 11 and second communication nodes 12. The second communication node 12 may be communicatively connected to one or more first communication nodes 11.

[0044] The first communication node 11 can be referred to as a terminal device, user equipment, mobile station, mobile terminal, etc. For example, the terminal can be a mobile phone, tablet computer, computer with wireless transceiver capabilities, virtual reality terminal, augmented reality terminal, wireless terminal in industrial control, wireless terminal in autonomous driving, wireless terminal in remote surgery, wireless terminal in transportation safety, wireless terminal in smart cities, wireless terminal in smart homes, etc. The embodiments of this application do not limit the specific device form used for the terminal.

[0045] In this embodiment, the first communication node 11 can be a Release-18 RedCap UE. That is, the number of PRBs that terminal 11 can process for PDSCH in one time slot is less than or equal to the target bandwidth. When the number of PRBs transmitted on a physical channel is greater than the target bandwidth, the processing latency of the Release-18 RedCap UE increases.

[0046] Furthermore, the second communication node 12 can be used to implement functions such as terminal resource scheduling, wireless resource management, and wireless access control. Specifically, the base station can be any node among small base stations, wireless access points, transceiver points (TRPs), transmission points (TPs), and some other access nodes.

[0047] It should be noted that, Figure 1 This is just an example framework diagram. Figure 1 The number of devices included and the names of each device are unlimited, except for... Figure 1 In addition to the devices shown, the communication system may also include other devices, such as core network equipment.

[0048] The application scenarios of the embodiments in this application are not limited. The system architecture and business scenarios described in the embodiments of this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided by the embodiments of this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

[0049] An exemplary embodiment of this application provides a method for receiving a physical channel, applied to a first communication node. For example... Figure 2 As shown, the method for receiving this physical channel may include the following steps:

[0050] S101, The first communication node determines the first processing time.

[0051] The first processing time is the additional processing time required for the first type of communication node to process a physical channel with a bandwidth greater than the target bandwidth.

[0052] In some embodiments, the target bandwidth can be the number of physical resource blocks (PRBs) in the frequency domain. For example, with a 15 kHz subcarrier spacing, the target bandwidth of the first type of communication node is 25 PRBs. Alternatively, with a 30 kHz subcarrier spacing, the target bandwidth of the first type of communication node is 12 PRBs.

[0053] In some embodiments, the communication node may include a first type of communication node and a second type of communication node.

[0054] In some embodiments, a first type of communication node has at least one of the following characteristics. Therefore, if a first communication node has characteristic one and / or characteristic two, it can be determined that the first communication node is a first type of communication node. Furthermore, if a first communication node does not have characteristic one and characteristic two, it can be determined that the first communication node is a second type of communication node.

[0055] Feature 1: Type 1 communication nodes meet the bandwidth requirements. These bandwidth requirements include a Physical Downlink Shared Channel (PDSCH) processing bandwidth that is less than or equal to the aforementioned target bandwidth. The PDSCH processing bandwidth refers to the number of PRBs that a Type 1 communication node can process for the PDSCH in a single time slot.

[0056] The bandwidth requirement may also include a Physical Uplink Shared Channel (PUSCH) transmission bandwidth that is less than or equal to the aforementioned target bandwidth. The PUSCH transmission bandwidth refers to the number of PRBs that a Type 1 communication node can transmit for the PUSCH in a single timeslot or frequency hopping resource.

[0057] Furthermore, the reduced bandwidth of PDSCH that can be processed or PUSCH that can be transmitted enables the first type of communication node to have lower complexity.

[0058] Feature 2: Type 1 communication nodes meet the peak data rate requirement. This peak data rate requirement includes a product of the number of transmission layers, modulation order, and adjustment factor that is less than 4.

[0059] The peak data rate decreases when the product of the number of transmission layers, modulation order, and modulation factor is less than 4. It should be understood that the peak data rate is determined based on the product of these three capability parameters. Typically, this product is greater than or equal to 4. However, the product of the modulation order, number of transmission layers, and modulation factor reported by the first type of communication node is less than 4. Its minimum value is 3.2 or 0.8. For the first type of communication node, the product of these three capability parameters decreases to 3.2 or 0.8, thereby reducing the peak data rate. Consequently, the first type of communication node has lower complexity.

[0060] In some embodiments, the first processing duration may be determined based on the type of the first communication node.

[0061] In one possible implementation, the first communication node is a first type of communication node. Furthermore, a first processing time is determined for the first type of communication node. It should be understood that the first communication node possesses characteristic one described above, or the first communication node possesses characteristic two described above, or the first communication node possesses both characteristic one and characteristic two described above.

[0062] In some embodiments, when the first communication node is a first type of communication node, the first processing time decreases as the subcarrier spacing increases.

[0063] In one example, with a 15 kHz subcarrier spacing, the first processing duration A equals 1 millisecond, which is equivalent to 14 orthogonal frequency division multiplexing (OFDM) symbols or one time slot. With a 30 kHz subcarrier spacing, the first processing duration A equals 0.5 milliseconds, which is equivalent to 14 OFDM symbols or one time slot.

[0064] In another example, with a 15 kHz subcarrier spacing, the first processing duration A is 0.5 milliseconds, or 7 OFDM symbols. With a 30 kHz subcarrier spacing, the first processing duration A is 0.25 milliseconds, or 7 OFDM symbols.

[0065] In another possible implementation, if the first communication node is a second type of communication node, then the first processing time is 0 milliseconds.

[0066] It should be noted that for the second type of communication node, the physical downlink shared channel processing bandwidth and the physical uplink shared channel transmission bandwidth are greater than the target bandwidth. The first processing time can be understood as the additional processing time required for the first type of communication node to process physical channels exceeding the target bandwidth. For the first type of communication node, due to its smaller PDSCH processing bandwidth, the single-pass PDSCH processing bandwidth is limited. Therefore, multiple processing passes are required for PDSCHs exceeding the target bandwidth, resulting in additional processing time, i.e., the aforementioned first processing time. For the second type of communication node, its PDSCH processing bandwidth is unrestricted, and no additional processing time is generated; therefore, the first processing time A equals 0.

[0067] S102. The first communication node determines the physical channel to be decoded from the first physical channel and the second physical channel according to the first processing time.

[0068] In some embodiments, the first physical channel and the second physical channel conflict in the time domain. Therefore, the first communication node can determine the physical channel to be decoded from the first physical channel and the second physical channel.

[0069] It should be noted that, due to the limited single-pass processing bandwidth of the physical channels of the first type of communication node, additional processing time is required for physical channels with a bandwidth greater than the target bandwidth of the first type of communication node. When two physical channels are scheduled sequentially within a certain time window, and the transmission bandwidth of the first physical channel is greater than the target bandwidth, the processing times of the two physical channels will overlap due to the longer processing time of the first physical channel; that is, the processing times of the two physical channels will conflict in the time domain. Therefore, the first communication node can determine the decoding priority of the physical channels and decode one of the two physical channels first.

[0070] In some embodiments, the first physical channel or the second physical channel may be a physical uplink shared channel, a physical downlink shared channel, or other physical channels, without limitation.

[0071] In some embodiments, the first communication node may determine the physical channel to be decoded from a first physical channel and a second physical channel based on a first processing duration. Exemplary methods include at least the following possible determination methods:

[0072] Method 1: When the transmission time of the second physical channel overlaps with the first processing time after the domain symbol at the end of the transmission of the first physical channel, the first communication node can determine that there is a time-domain conflict between the first and second physical channels. Therefore, the first communication node determines the physical channel to be decoded from the first and second physical channels. Here, the domain symbol at the end of the transmission of the first physical channel can be understood as the last OFDM symbol transmitted in the first physical channel, i.e., the end time of the transmission of the first physical channel.

[0073] That is, the transmission time period of the second physical channel from the start to the end of transmission can be determined. It is also possible to determine a time range with the first OFDM symbol after the end of the first physical channel transmission as the start time and the duration as the first processing time. If the transmission time period of the second physical channel partially or completely overlaps with this time range, the first communication node can determine that there is a time-domain conflict between the first and second physical channels.

[0074] Method Two: When the first physical channel transmits on time slot n and the second physical channel transmits on time slot n+k, the first communication node can determine that there is a time-domain conflict between the first and second physical channels. Therefore, the first communication node determines the physical channel to be decoded from the first and second physical channels. Here, k is less than or equal to the first processing duration. For example, when the first physical channel transmits on time slot n and the second physical channel transmits on time slot n+A, the physical channel to be decoded is determined from the first and second physical channels. Here, A is the aforementioned first processing duration. Furthermore, the first processing duration is equal to one time slot, i.e., A = 1.

[0075] Method 3: When the transmission time of the second physical channel partially or completely overlaps with the first time window, the first communication node determines the physical channel to be decoded from the first physical channel and the second physical channel. The starting point of the first time window is the starting OFDM symbol of the first physical channel, and the ending point is the time point determined by adding the first processing duration to the ending OFDM symbol of the first physical channel.

[0076] In some embodiments, the aforementioned multiple physical channels may originate from the same transmitter or from different transmitters, and there is no limitation on this.

[0077] In some embodiments, the first communication node may acquire scheduling information for a first physical channel and a second physical channel. The scheduling information includes at least one of the following: the time-domain location, bandwidth, and channel type of the physical channel.

[0078] In some embodiments, the time-domain location of a physical channel can be understood as the number of time-domain symbols occupied by the physical channel in the time domain. As an example, the time-domain location of a physical channel can indicate the starting time-domain symbol and duration of the physical channel.

[0079] In some embodiments, the time-domain symbol may be an orthogonal frequency division multiplexing (OFDM) symbol.

[0080] In some embodiments, the channel type includes at least one of a system information block (SIB), a terminal-specific physical shared channel, a physical shared channel for paging, Message 4 (Msg4), and a random access response (RAR).

[0081] In some embodiments, the physical channel to be decoded can be understood as the physical channel that needs to be decoded first among the first physical channel and the second physical channel. Alternatively, the physical channel to be decoded can be understood as the first physical channel to be decoded among the first physical channel and the second physical channel.

[0082] In some embodiments, the first communication node may also determine the physical channel to be decoded from multiple physical channels, so that the physical channel to be decoded may be one or more, without limitation.

[0083] In some embodiments, for the physical channel that is not to be decoded in the first physical channel and the second physical channel, the first communication node may abandon the physical channel that is not to be decoded. Alternatively, the first communication node may decode the physical channel that is not to be decoded after decoding the physical channel that is to be decoded.

[0084] In some embodiments, the first communication node may have the following decoding scheme:

[0085] Option 1: The first communication node can first decode the first physical channel, and then decode the second physical channel.

[0086] Option 2: The first communication node can first decode the second physical channel, and then decode the first physical channel.

[0087] Option 3: The first communication node can decode the first physical channel and abandon decoding the second physical channel.

[0088] Option 4: The first communication node can decode the second physical channel and abandon decoding the first physical channel.

[0089] In this embodiment of the application, the physical channel is scheduled by the radio network temporary identity (RNTI). Taking PDSCH as an example, it can include: PDSCH scheduled by RandomAccess RNTI (RA-RNTI), PDSCH scheduled by Cell RNTI (C-RNTI), PDSCH scheduled by Modulation Coding Scheme Cell RNTI (MCS-C-RNTI), PDSCH scheduled by Semi-Persistence Scheduling RNTI (SPS-RNTI), PDSCH scheduled by Configured Scheduling RNTI (CS-RNTI), PDSCH scheduled by Group RNTI (G-RNTI), PDSCH scheduled by Multicast broadcast service Control Channel RNTI (MCCH-RNTI), PDSCH scheduled by Group Configured Scheduling RNTI (G-CS-RNTI), and PDSCH scheduled by Message B RNTI. PDSCH scheduled by RNTI (MsgB-RNTI) or PDSCH scheduled by System Information Network Temporary Identifier (SI-RNTI).

[0090] The following example illustrates how the first communication node determines the physical channel to be decoded, taking into account different cases of temporary wireless network identifiers for the first and second physical channels.

[0091] In one example, the first physical channel includes a Physical Downlink Shared Channel (PDSCH) scheduled by RA-RNTI or MsgB-RNTI. Furthermore, the second physical channel includes a PDSCH scheduled by C-RNTI, MCS-C-RNTI, CS-RNTI, SPS-RNTI, G-RNTI, MCCH-RNTI, or G-CS-RNTI. Therefore, the first communication node can determine the first physical channel as the physical channel to be decoded.

[0092] In another example, the first physical channel includes a PDSCH triggered by a Paging Radio Network Temporary Identifier (P-RNTI) and scheduled by a System Information Radio Network Temporary Identifier (SI-RNTI). The second physical channel includes a PDSCH scheduled by a C-RNTI, MCS-C-RNTI, SPS-RNTI, or CS-RNTI. Therefore, the first communication node can determine the first physical channel as the physical channel to be decoded.

[0093] In another example, the first physical channel includes the PDSCH corresponding to the system information under the condition of automatic acquisition of system information. The second physical channel includes the PDSCH scheduled by C-RNTI, MCS-C-RNTI, SPS-RNTI, or CS-RNTI. Therefore, the first communication node can determine the second physical channel as the physical channel to be decoded.

[0094] In another example, the first physical channel includes a broadcast PDSCH scheduled by G-RNTI, a multicast PDSCH scheduled by G-RNTI, a PDSCH scheduled by MCCH-RNTI, or a PDSCH scheduled by G-CS-RNTI; the second physical channel includes a PDSCH scheduled by C-RNTI, CS-RNTI, or SPS-RNTI. Furthermore, the first communication node can determine the second physical channel as the physical channel to be decoded, or determine the first physical channel as the physical channel to be decoded.

[0095] In another example, the first physical channel includes a PDSCH scheduled by RA-RNTI, SI-RNTI, or MsgB-RNTI, and the second physical channel includes a Physical Downlink Control Channel (PDCCH) or a Physical Broadcast Channel (PBCH). Therefore, the first communication node can determine the second physical channel as the physical channel to be decoded, or determine the first physical channel as the physical channel to be decoded.

[0096] S103. The first communication node decodes the physical channel to be decoded.

[0097] Decoding is the reverse process of encoding. The first communication node can perform channel decoding on the physical channel to be decoded based on the encoding method of the transmitting node that sent the physical channel to be decoded, in order to obtain the decoding result. Furthermore, the first communication node has a decoder to perform decoding operations on the channel to be decoded based on the decoder.

[0098] Based on the above embodiments, since the Release-18 RedCap UE experiences significant processing latency when handling physical channels with large bandwidths, the first physical channel and the second physical channel may conflict in the time domain, preventing the first communication node from simultaneously decoding both. Therefore, the first communication node can select a suitable physical channel to be decoded from the first and second physical channels and decode that channel. This ensures that the first communication node can promptly obtain the important information carried by the physical channel to be decoded, thereby guaranteeing normal communication of the communication system.

[0099] In some embodiments, this application also provides a method for transmitting a physical channel, which can be applied to a first communication node, such as... Figure 3 As shown, the method includes the following steps:

[0100] S201, The first communication node receives the third physical channel.

[0101] In some embodiments, the bandwidth of the third physical channel is greater than the target bandwidth of the first communication node.

[0102] The target bandwidth can be the number of physical resource blocks in the frequency domain. For example, with a 15 kHz subcarrier spacing, the target bandwidth is 25 physical resource blocks. Alternatively, with a 30 kHz subcarrier spacing, the target bandwidth is 12 physical resource blocks.

[0103] S202. When the bandwidth of the third physical channel is greater than the target bandwidth, the first communication node determines the second processing duration.

[0104] The statement that the bandwidth of the third physical channel is greater than the target bandwidth indicates that the number of PRBs used for transmission in the third physical channel is greater than the target bandwidth.

[0105] The second processing time is the additional processing time required for the first type of communication node to process a physical channel with a bandwidth greater than the target bandwidth.

[0106] In some embodiments, the first communication node may determine the second processing duration based on the type of the first communication node.

[0107] It should be noted that, since the single-processing bandwidth of the PDSCH of the first type of communication node is limited, multiple processing operations are required for PDSCH that exceed the target bandwidth, thus requiring additional processing time, namely the second processing time mentioned above.

[0108] The communication nodes may include a first type of communication node and a second type of communication node. The descriptions of the first type of communication node and the second type of communication node in step S101 above are provided and will not be repeated here.

[0109] In one possible implementation, the first communication node is a first type of communication node. Furthermore, a second processing duration can be determined based on the first type of communication node, and the second processing duration decreases as the subcarrier spacing increases.

[0110] In one example, with a 15 kHz subcarrier spacing, the second processing duration can be equal to 1 millisecond, or it can also be expressed as 14 OFDM symbols or one time slot. With a 30 kHz subcarrier spacing, the second processing time is equal to 0.5 milliseconds, or it can also be expressed as 14 OFDM symbols or one time slot.

[0111] In another example, with a 15 kHz subcarrier spacing, the second processing time is equal to 0.5 milliseconds, or the second processing duration can also be expressed as 7 OFDM symbols. With a 30 kHz subcarrier spacing, the second processing time is equal to 0.25 milliseconds, or the second processing duration can also be expressed as 7 OFDM symbols.

[0112] In another possible implementation, if the first communication node is a second type of communication node, then the second processing time is 0 milliseconds.

[0113] In some embodiments, the second processing duration value is different between the individual initial bandwidth part (BWP) corresponding to the RedCap UE and the initial BWP containing the control resource set 0 (CORESET#0).

[0114] In some embodiments, the bandwidth of the fourth physical channel is also greater than the target bandwidth.

[0115] S203. The first communication node determines the transmission time of the fourth physical channel based on the second processing time.

[0116] In some embodiments, the transmission time of the fourth physical channel can also be determined based on the second processing time and the transmission time of the third physical channel.

[0117] In some embodiments, the first communication node may determine the transmission time of the fourth physical channel based on at least the following possible implementations.

[0118] In Implementation Method 1, the minimum time interval between the end-of-transmission domain symbol of the third physical channel and the start-of-transmission domain symbol of the fourth physical channel is equal to the sum of the preset physical downlink shared channel processing time, the preset physical uplink shared channel preparation time, the second processing time, and the first preset time.

[0119] In this embodiment, the end-of-transmission domain symbol of the third physical channel can be understood as the last OFDM symbol received by the first communication node in the third physical channel, and the reception time of the third physical channel can be determined based on this OFDM symbol. The start-of-transmission domain symbol of the fourth physical channel can be understood as the first OFDM symbol transmitted in the fourth physical channel, and the time of transmitting this OFDM symbol is the transmission time of the fourth physical channel.

[0120] For example, the minimum time interval is equal to A2+B+C+D1, where A2 is the second processing duration, B is the preset physical downlink shared channel processing duration, C is the preset physical uplink shared channel preparation duration, and D1 is the first preset duration, which can be 0.5 milliseconds.

[0121] In this implementation, the third physical channel is the physical downlink shared channel corresponding to the random access response, and the fourth physical channel is the physical uplink shared channel corresponding to message three, Msg3. It should be understood that the first communication node successfully receives the random access response based on a Type 1 random access procedure (i.e., a four-step random access procedure).

[0122] In the second implementation method, the time interval between the end-of-transmission domain symbol of the third physical channel and the start-of-transmission domain symbol of the fourth physical channel is greater than or equal to the sum of the preset physical downlink shared channel processing time, the second processing time, and the first preset time.

[0123] For example, the minimum time interval is equal to A2+B+D1, where A2 is the second processing duration, B is the preset physical downlink shared channel processing duration, and D1 is the first preset duration, which can be 0.5 milliseconds.

[0124] In this implementation, the third physical channel is the physical downlink shared channel corresponding to the random access response, and the fourth physical channel is the physical uplink control channel. The fourth physical channel carries the ACK (Acknowledgment of Correct Decoding) information for the third physical channel. It should be understood that the first communication node successfully received the random access response based on the Type II random access process (i.e., a two-step random access process).

[0125] Implementation Method 3: In the case where the first communication node fails to correctly decode the third physical channel, or the third physical channel does not contain the random access preamble sequence identifier (RAPID) corresponding to the first communication node, the time interval between the transmission time of the fourth physical channel and the end-of-transmission field symbol of the third physical channel is less than or equal to the sum of the second processing duration, the preset physical downlink shared channel processing duration, and the second preset duration.

[0126] The domain symbol at the end of the transmission of the third physical channel can be understood as the last OFDM symbol received by the first communication node in the third physical channel, and the reception time of the third physical channel can be determined based on this OFDM symbol.

[0127] For example, the minimum time interval is equal to A2+B+D2, where A2 is the second processing duration, B is the preset physical downlink shared channel processing duration, and D2 is the second preset duration, which can be 0.75 milliseconds.

[0128] In some embodiments, higher-layer signaling instructs the first communication node to send a PRACH.

[0129] In this implementation, the third physical channel is the PDSCH corresponding to the RAR, and the fourth physical channel is the Physical Random Access Channel (PRACH). It should be understood that the first communication node failed to receive the third physical channel and was based on a Type II random access procedure (i.e., a four-step random access procedure).

[0130] Implementation Method 4: In the case that the first communication node fails to correctly decode the third physical channel, or the third physical channel does not contain the random access preamble sequence identifier (RAPID) corresponding to the first communication node, the time interval between the transmission time of the fourth physical channel and the last time domain symbol of the received third physical channel is less than or equal to the sum of the second processing time, the preset physical downlink shared channel processing time, and the second preset time.

[0131] The domain symbol at the end of the transmission of the third physical channel can be understood as the last OFDM symbol received by the first communication node in the third physical channel, and the reception time of the third physical channel can be determined based on this OFDM symbol.

[0132] For example, the minimum time interval is equal to A2+B+D2, where A2 is the second processing duration, B is the preset physical downlink shared channel processing duration, and D2 is the second preset duration, which can be 0.75 milliseconds.

[0133] In some embodiments, higher-layer signaling instructs the first communication node to send PRACH based on a Type I random access process or to send PRACH and PUSCH based on a Type II random access process.

[0134] In this implementation, the third physical channel is the physical downlink shared channel corresponding to the radio network temporary identifier MsgB-RNTI of message B, and the fourth physical channel is the physical random access channel (PRACH).

[0135] In some embodiments, the value of the second processing time may be the same or different in the four possible implementations described above. In some embodiments, at least two of the four possible implementations have different values ​​for the second processing time.

[0136] In some embodiments, the time-domain symbol may be an orthogonal frequency division multiplexing (OFDM) symbol.

[0137] S204. The first communication node sends the fourth physical channel based on the determined transmission time.

[0138] Based on the above embodiments, when the bandwidth of the third physical channel is greater than the target bandwidth of the first communication node, a reasonable transmission time for the fourth physical channel is determined based on the second processing time to avoid conflicts between processing the third physical channel and transmitting the fourth physical channel.

[0139] This application also provides a method for determining the characteristics of a first communication node, which can be applied to both a second communication node and a first communication node, such as... Figure 4 As shown, the method includes the following steps:

[0140] S301, The second communication node receives the transmission layer number, modulation order and adjustment factor sent by the first communication node.

[0141] The first communication node can send the transmission layer number, modulation order, and adjustment factor to the second communication node. The second communication node then receives the transmission layer number, modulation order, and adjustment factor.

[0142] Wherein, the number of transmission layers refers to the maximum number of transmission layers supported by the first communication node's PDSCH or PUSCH transmission. For example, for PDSCH, if the first communication node supports a maximum of two transmission layers, then the number of transmission layers transmitted is 2.

[0143] The modulation order is used to calculate the peak data rate of the first communication node. The first communication node transmits the modulation order according to its own capabilities. If the transmitted modulation order corresponds to M, the second communication node can calculate the peak data rate supported by the first communication node based on the modulation order M. M can be equal to 1, 2, 4, 6, or 8.

[0144] The adjustment factor is used to calculate the peak data rate of the first communication node. For example, the adjustment factor can take values ​​of 0.4, 0.75, 0.8, or 1. In some embodiments, the adjustment factor can also take other values, which are not limited here. The first communication node transmits the adjustment factor according to its own capabilities.

[0145] In some embodiments, the peak data rate of the first communication node is calculated based on the product of the number of transmission layers, the modulation order, and the adjustment factor. The peak data rate of the first communication node is monotonically increasing with the product of the three factors; the larger the product of the number of transmission layers, the modulation order, and the adjustment factor, the higher the peak data rate.

[0146] S302. The second communication node determines the characteristics of the first communication node based on the product of the transmission layer number, modulation order, and adjustment factor.

[0147] The first communication node has at least one of the following two characteristics.

[0148] Feature 1: The first type of communication node meets the bandwidth requirement. This bandwidth requirement includes a PDSCH processing bandwidth that is less than or equal to the aforementioned target bandwidth. The PDSCH processing bandwidth refers to the number of PRBs that the first type of communication node can process for PDSCH in a single time slot.

[0149] The bandwidth requirement may include a PUSCH transmission bandwidth that is less than or equal to the aforementioned target bandwidth. The PUSCH transmission bandwidth refers to the number of PRBs that a first-type communication node can transmit for PUSCH in a time slot or a frequency hopping resource.

[0150] Feature 2: Type 1 communication nodes meet the peak data rate requirement. This peak data rate requirement includes a product of the number of transmission layers, modulation order, and adjustment factor that is less than 4.

[0151] The peak data rate decreases when the product of the number of transmission layers, modulation order, and modulation factor is less than 4. It should be understood that the peak data rate is determined based on the product of these three capability parameters. Typically, this product is greater than or equal to 4. However, the product of the modulation order, number of transmission layers, and modulation factor reported by the first type of communication node is less than 4. Its minimum value is 3.2 or 0.8. For the first type of communication node, the product of these three capability parameters decreases to 3.2 or 0.8, thereby reducing the peak data rate. Consequently, the first type of communication node has lower complexity.

[0152] It should be understood that the first communication node possesses characteristic one, or the first communication node possesses characteristic two, or the first communication node possesses both characteristic one and characteristic two. The second communication node determines the characteristics possessed by the first communication node based on the transmission layer number, modulation order, and adjustment factor reported by the first communication node.

[0153] In some embodiments, when the product of the number of transmission layers, the modulation order, and the adjustment factor is less than 3.2, the first type of communication node has characteristic two as described above, but does not have characteristic one as described above.

[0154] In some embodiments, when the product of the number of transmission layers, the modulation order, and the adjustment factor is greater than or equal to 3.2 and less than 4, the first type of communication node has the aforementioned characteristic one and characteristic two.

[0155] The above primarily describes the solution provided in this application from the perspective of the interaction between various nodes. It is understood that each node, such as a device or apparatus, includes corresponding hardware structures and / or software modules to perform the aforementioned functions. Those skilled in the art should readily recognize that, based on the algorithmic steps of the examples described in conjunction with the embodiments disclosed herein, the present invention can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present invention.

[0156] This application embodiment can divide the communication device into functional modules according to the above method embodiment. For example, each function can be divided into a separate functional module, or two or more functions can be integrated into one functional module. The integrated module can be implemented in hardware or software. It should be noted that the module division in this application embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods. The following description uses the example of dividing each functional module according to each function.

[0157] Figure 5 The diagram shown is a schematic representation of the composition of a communication device provided in an embodiment of this application. Figure 5 As shown, the communication device 50 is applied to the first communication node and includes a processing module 501 and a decoding module 502.

[0158] In some embodiments, processing module 501 is configured to determine a first processing duration. Processing module 501 is further configured to determine the physical channel to be decoded from a first physical channel and a second physical channel based on the first processing duration. Decoding module 502 is further configured to decode the physical channel to be decoded.

[0159] In some embodiments, the processing module 501 is specifically configured to determine a first processing duration based on the type of the first communication node.

[0160] In some embodiments, the first communication node is a first type of communication node, and the first processing duration decreases as the subcarrier spacing increases. The first type of communication node satisfies at least one of the following: bandwidth requirement, including a physical downlink shared channel processing bandwidth less than or equal to the target bandwidth; and peak data rate requirement, including a peak data rate requirement where the product of the transmission layer number, modulation order, and adjustment factor is less than 4.

[0161] In some embodiments, when the product of the number of transmission layers, modulation order, and adjustment factor is less than 3.2, the first type of communication node only meets the peak data rate requirement.

[0162] In some embodiments, when the product of the number of transmission layers, the modulation order, and the adjustment factor is greater than or equal to 3.2 and less than 4, the first type of communication node meets the bandwidth requirement and the peak data rate requirement.

[0163] In some embodiments, the subcarrier spacing is 15 kHz and the first processing duration is 1 millisecond or 0.5 milliseconds; or, the subcarrier spacing is 30 kHz and the first processing duration is 0.5 milliseconds or 0.25 milliseconds.

[0164] In some embodiments, the processing module 501 is specifically used to determine that one of the first physical channel and the second physical channel is the physical channel to be decoded if the transmission time period of the second physical channel partially or completely overlaps with the time period of the first processing duration after the end of the transmission of the orthogonal frequency division multiplexing time domain symbol of the first physical channel.

[0165] In some embodiments, the processing module 501 is specifically used to determine one of the first physical channel and the second physical channel as the physical channel to be decoded, where the first physical channel is transmitted on time slot n and the second physical channel is transmitted on time slot n+k, and k is less than or equal to the first processing duration.

[0166] In some embodiments, the bandwidth of the first physical channel is greater than the target bandwidth of the first communication node.

[0167] In some embodiments, the first physical channel includes a Physical Downlink Shared Channel (PDSCH) scheduled by a Random Access Radio Network Temporary Identifier (RA-RNTI) or a Message B Radio Network Temporary Identifier (MsgB-RNTI); the second physical channel includes a Cell Radio Network Temporary Identifier (C-RNTI), a Modulation and Coding Policy Cell Radio Network Temporary Identifier (MCS-C-RNTI), a Configuration Scheduling Radio Network Temporary Identifier (CS-RNTI), a Group Radio Network Temporary Identifier (G-RNTI), a Multicast Broadcast Service Radio Network Temporary Identifier (MCCH-RNTI), or a Group Configuration Scheduling Radio Network Temporary Identifier (G-CS-RNTI) scheduled by a PDSCH.

[0168] In some embodiments, the first physical channel includes a PDSCH triggered by the Paging Radio Network Temporary Identifier (P-RNTI) and scheduled by the System Information Radio Network Temporary Identifier (SI-RNTI); the second physical channel includes a PDSCH scheduled by C-RNTI, MCS-C-RNTI, or CS-RNTI.

[0169] In some embodiments, the processing module 501 is specifically configured to determine the first physical channel as the physical channel to be decoded.

[0170] In some embodiments, the first physical channel includes the PDSCH corresponding to the system information under the condition of automatic acquisition of system information; the second physical channel includes the PDSCH scheduled by C-RNTI, MCS-C-RNTI or CS-RNTI.

[0171] In some embodiments, the processing module 501 is specifically configured to determine the second physical channel as the physical channel to be decoded.

[0172] For a more detailed description of the processing module 501 and the decoding module 502, as well as a more detailed description of their respective technical features and beneficial effects, please refer to the corresponding encoding method embodiment section above, which will not be repeated here.

[0173] Figure 6 The diagram shown is a schematic representation of the composition of a communication device provided in an embodiment of this application. Figure 6 As shown, the communication device 60 is applied to the first communication node and includes a transceiver module 601 and a processing module 602.

[0174] In some embodiments, transceiver module 601 is configured to receive a third physical channel. Processing module 602 is configured to determine a second processing duration if the bandwidth of the third physical channel is greater than the target bandwidth of the first communication node. Processing module 602 is further configured to determine a transmission time for a fourth physical channel based on the second processing duration. Transceiver module 601 is further configured to transmit the fourth physical channel based on the transmission time.

[0175] In some embodiments, the minimum time interval between the end-of-transmission domain symbol of the third physical channel and the start-of-transmission domain symbol of the fourth physical channel is equal to the sum of the preset physical downlink shared channel processing time, the preset physical uplink shared channel preparation time, the second processing time, and the first preset time. Here, the third physical channel is the physical downlink shared channel corresponding to the random access response, the fourth physical channel is the physical uplink shared channel corresponding to message 3 Msg3, and the transmission time of the start-of-transmission domain symbol of the fourth physical channel is the transmission time of the fourth physical channel.

[0176] In some embodiments, upon successful reception of a random access response, the time interval between the end-of-transmission domain symbol of the third physical channel and the start-of-transmission domain symbol of the fourth physical channel is greater than or equal to the sum of a preset physical downlink shared channel processing duration, a second processing duration, and a first preset duration. The third physical channel is the physical downlink shared channel corresponding to the random access response, the third physical channel is the physical uplink control channel, the third physical channel carries a correct decoding acknowledgment (ACK) for the third physical channel, and the transmission time of the start-of-transmission domain symbol of the fourth physical channel is the transmission time of the fourth physical channel.

[0177] In some embodiments, the first preset duration is 0.5 milliseconds.

[0178] In some embodiments, if the first communication node fails to correctly decode the third physical channel, or if the third physical channel does not contain the random access preamble sequence identifier (RAPID) corresponding to the first communication node, the time interval between the transmission time of the fourth physical channel and the end-of-transmission field symbol of the received third physical channel is less than or equal to the sum of the second processing duration, the preset physical downlink shared channel processing duration, and the second preset duration.

[0179] In some embodiments, the second duration is 0.75 milliseconds.

[0180] In some embodiments, the third physical channel is the physical downlink shared channel corresponding to the random access response or the physical downlink shared channel corresponding to the Message B Radio Network Temporary Identifier MsgB-RNTI, and the fourth physical channel is the physical random access channel PRACH.

[0181] In some embodiments, the first communication node is a first type of communication node, and the second processing time decreases as the subcarrier spacing increases; wherein, the first type of communication node satisfies at least one of the following: bandwidth requirement, the bandwidth requirement includes physical downlink shared channel processing bandwidth being less than or equal to the target bandwidth; peak data rate requirement, the peak data rate requirement includes the product of the number of transmission layers, modulation order and adjustment factor being less than 4.

[0182] In some embodiments, when the product of the number of transmission layers, modulation order, and adjustment factor is less than 3.2, the first type of communication node only meets the peak data rate requirement.

[0183] In some embodiments, when the product of the number of transmission layers, the modulation order, and the adjustment factor is greater than or equal to 3.2 and less than 4, the first type of communication node meets the bandwidth requirement and the peak data rate requirement.

[0184] In some embodiments, the subcarrier spacing is 15 kHz and the second processing duration is 1 millisecond; the subcarrier spacing is 30 kHz and the second processing duration is 0.5 milliseconds; or, the subcarrier spacing is 15 kHz and the second processing duration is 0.5 milliseconds; or the subcarrier spacing is 30 kHz and the second processing duration is 0.25 milliseconds.

[0185] For a more detailed description of the transceiver module 601 and the processing module 602, as well as a more detailed description of their respective technical features and beneficial effects, please refer to the corresponding encoding method embodiment section above, which will not be repeated here.

[0186] It should be noted that, Figure 5 or Figure 6 Modules in a module can also be called units; for example, a processing module can be called a processing unit. Additionally, in... Figure 5 or Figure 6 In the embodiments shown, the names of the modules may not be the same as those shown in the figures. For example, the acquisition module or the sending module may also be called the communication module.

[0187] Figure 5 or Figure 6 If the various units in the process are implemented as software functional modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of this application, in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods of the various embodiments of this application. Storage media for storing computer software products include: USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, optical disks, and other media capable of storing program code.

[0188] In the case where the functions of the integrated modules described above are implemented in hardware, this application provides a schematic diagram of the structure of a communication device. For example... Figure 7 As shown, the communication device 700 includes: a processor 702, a communication interface 703, and a bus 704. Optionally, the communication device 700 may also include a memory 701.

[0189] Processor 702 may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. Processor 702 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. Processor 702 may also be a combination that implements computing functions, such as including one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.

[0190] The communication interface 703 is used to connect to other devices via a communication network. This communication network can be Ethernet, wireless access network, wireless local area network (WLAN), etc.

[0191] The memory 701 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), disk storage medium or other magnetic storage device, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but is not limited thereto.

[0192] As one possible implementation, the memory 701 can exist independently of the processor 702. The memory 701 can be connected to the processor 702 via a bus 704 and is used to store instructions or program code. When the processor 702 calls and executes the instructions or program code stored in the memory 701, it can implement the method provided in the embodiments of this application.

[0193] In another possible implementation, the memory 701 can also be integrated with the processor 702.

[0194] The 704 bus can be an extended industry standard architecture (EISA) bus, etc. The 704 bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 7 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0195] Through the above description of the implementation methods, those skilled in the art can clearly understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the equipment or device can be divided into different functional modules to complete all or part of the functions described above.

[0196] This application also provides a computer-readable storage medium. All or part of the processes in the above method embodiments can be executed by computer instructions instructing related hardware. The program can be stored in the computer-readable storage medium, and when executed, it can include the processes of the above method embodiments. The computer-readable storage medium can be any of the foregoing embodiments or memory. The computer-readable storage medium can also be an external storage device for the above-mentioned device or apparatus, such as a plug-in hard drive, smart media card (SMC), secure digital (SD) card, flash card, etc., equipped on the above-mentioned device or apparatus. Further, the computer-readable storage medium can include both internal storage units and external storage devices of the above-mentioned device or apparatus. The computer-readable storage medium is used to store the above-mentioned computer program and other programs and data required by the above-mentioned device or apparatus. The computer-readable storage medium can also be used to temporarily store data that has been output or will be output.

[0197] This application also provides a computer program product comprising a computer program that, when run on a computer, causes the computer to perform any of the methods provided in the above embodiments.

[0198] Although this application has been described herein in conjunction with various embodiments, those skilled in the art, by reviewing the accompanying drawings, disclosure, and appended claims, will understand and implement other variations of the disclosed embodiments in carrying out the claimed application. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude multiple components. A single processor or other unit can implement several functions listed in the claims. While different dependent claims may recite certain measures, this does not mean that these measures cannot be combined to produce good results.

[0199] Although this application has been described in conjunction with specific features and embodiments, it is obvious that various modifications and combinations can be made thereto without departing from the spirit and scope of this application. Accordingly, this specification and drawings are merely exemplary illustrations of this application as defined by the appended claims, and are considered to cover any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from the spirit and scope of this application. Thus, if such modifications and modifications of this application fall within the scope of the claims of this application and their equivalents, this application is also intended to include such modifications and modifications.

[0200] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for receiving data through a physical channel, characterized in that, The method is applied to a first communication node, which is a RedCap UE (Red Cap User Equipment) with reduced capabilities, and the method includes: Determine the first processing time; Based on the first processing time, the physical channel to be decoded is determined from the first physical channel and the second physical channel; Decode the physical channel to be decoded; The determination of the physical channel to be decoded includes: When the first physical channel and the second physical channel are transmitted on time slot n and time slot n+k respectively, one of the first physical channel and the second physical channel is determined as the physical channel to be decoded, where k is equal to the first processing duration and the first processing duration is equal to one time slot.

2. The method according to claim 1, further comprising: Discard the physical channels that are not to be decoded in the first physical channel and the second physical channel.

3. The method according to claim 1, characterized in that, Determining the physical channel to be decoded includes: determining the first physical channel as the physical channel to be decoded and determining the second physical channel as the physical channel not to be decoded, or determining the second physical channel as the physical channel to be decoded and determining the first physical channel as the physical channel not to be decoded.

4. The method according to claim 1, characterized in that, The first communication node is a first type of communication node, and the first processing time decreases as the subcarrier spacing increases; wherein, the first type of communication node satisfies at least one of the following: Bandwidth requirements, including physical downlink shared channel processing bandwidth being less than or equal to the target bandwidth; The peak data rate requirement includes a product of the number of transmission layers, modulation order, and adjustment factor of less than 4.

5. The method according to claim 4, characterized in that, When the product of the transmission layer number, modulation order, and adjustment factor is greater than or equal to 3.2 and less than 4, the first type of communication node satisfies the bandwidth requirement and the peak data rate requirement.

6. The method according to claim 4, characterized in that, The subcarrier spacing is 15 kHz, and the first processing time is 1 millisecond; or, the subcarrier spacing is 30 kHz, and the first processing time is 0.5 milliseconds.

7. The method according to claim 1, characterized in that, The bandwidth of the first physical channel is greater than the target bandwidth.

8. The method according to claim 7, characterized in that, With a subcarrier spacing of 15 kHz, the target bandwidth of the first communication node is 25 physical resource blocks; or with a subcarrier spacing of 30 kHz, the target bandwidth of the first communication node is 12 physical resource blocks.

9. The method according to claim 1, characterized in that, The first physical channel includes the Physical Downlink Shared Channel (PDSCH) scheduled by the Random Access Radio Network Temporary Identifier (RA-RNTI) or the Message B Radio Network Temporary Identifier (MsgB-RNTI). The second physical channel includes a cell radio network temporary identifier (C-RNTI), a modulation and coding policy cell radio network temporary identifier (MCS-C-RNTI), a configuration scheduling radio network temporary identifier (CS-RNTI), a group radio network temporary identifier (G-RNTI), a multicast broadcast service radio network temporary identifier (MCCH-RNTI), or a PDSCH scheduled by a group configuration scheduling radio network temporary identifier (G-CS-RNTI). The second physical channel is abandoned.

10. The method according to claim 1, characterized in that, The first physical channel includes broadcast PDSCH scheduled by G-RNTI, or PDSCH scheduled by MCCH-RNTI; The second physical channel includes C-RNTI or PDSCH scheduled by CS-RNTI; The first physical channel was abandoned.

11. A communication device, characterized in that, It includes a memory, a processor, and computer program instructions stored in the memory and executable on the processor, wherein the processor, when executing the computer program instructions, implements the method as described in any one of claims 1 to 10.

12. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes computer program instructions; wherein, when the computer program instructions are executed on a computer, the computer causes the computer to perform the method as described in any one of claims 1 to 10.

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