Communication method, device and terminal

Abstract

The present application discloses a communication method, an apparatus, and a terminal, belonging to the field of wireless communication. In an embodiment of the communication method of the present application, the terminal processes a target transmission based on a bandwidth capability, where the bandwidth capability of the terminal is a predetermined value, the predetermined value is less than or equal to 5 MHz, and the target transmission includes a first downlink transmission and / or a first uplink transmission.

Description

[Technical Field]

[0001] (CROSS-REFERENCE TO RELATED APPLICATIONS) This application claims priority to a Chinese patent application submitted to the China Patent Office on November 3, 2022, bearing application number 2022113724862 and titled "Communication method, device and terminal," the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the field of wireless communication technology, and particularly to a communication method, device and terminal. [Background technology]

[0003] With the development of communication technology, a new type of terminal device, Reduced Capability (RedCap) terminals, has been introduced into the New Radio (NR) system. These terminals have narrower bandwidth capabilities or fewer receive antennas than standard terminals. For example, R18 discloses that the maximum bandwidth capability of a RedCap terminal on Frequency Range 1 (FR1) is only 5 MHz, resulting in a lower terminal capability.

[0004] In this case, how RedCap terminals can realize communication behaviors in communication processes such as random access and small data transmission (SDT) is still a technical problem that needs to be solved urgently in this field. Summary of the Invention [Problem to be solved by the invention]

[0005] The embodiments of the present application provide a communication method, device and terminal that can ensure that the RedCap terminal achieves a normal communication process and further ensure communication quality. [Means for solving the problem]

[0006] According to a first aspect, there is provided a communication method, the method including: a terminal processing a target transmission based on a bandwidth capability, wherein the bandwidth capability of the terminal is a predetermined value, the predetermined value being less than or equal to 5 MHz, and the target transmission includes a first downlink transmission and / or a first uplink transmission.

[0007] According to a second aspect, there is provided a communications device, the communications device including: a processing module for processing a target transmission based on a bandwidth capability, wherein the bandwidth capability of a terminal is a predetermined value, the predetermined value being less than or equal to 5 MHz, and the target transmission includes a first downlink transmission and / or a first uplink transmission.

[0008] According to a third aspect, there is provided a terminal including a processor and a memory, the memory storing a program or instructions operable to run on the processor, the program or instructions being operable when executed by the processor to implement the steps of the method of the first aspect.

[0009] According to a fourth aspect, there is provided a terminal, the terminal including a processor and a communication interface, wherein the communication interface is coupled to the processor, the processor being adapted to run a program or instructions to implement the steps of the method according to the first aspect.

[0010] According to a fifth aspect, there is provided a communication system, the communication system including a terminal and a network side device, the terminal being adapted to perform the steps of the method according to the first aspect.

[0011] According to a sixth aspect, there is provided a readable storage medium having stored thereon a program or instructions which, when executed by a processor, implements the steps of the method according to the first aspect.

[0012] According to a seventh aspect, there is provided a chip, the chip including a processor and a communication interface, the communication interface coupled to the processor, the processor being adapted to run a program or instructions to implement the steps of the method according to the first aspect.

[0013] According to an eighth aspect, there is provided a computer program product / program product, the computer program / program product being stored on a storage medium and the computer program / program product being executed by at least one processor to implement the steps of the method according to the first aspect. [Effects of the Invention]

[0014] In the embodiment of the present application, the terminal processes the target transmission based on its own bandwidth capability, thereby relaxing the restrictions on scheduling / configuration by the network side, ensuring that the terminal realizes a normal communication process, and further ensuring communication quality. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a structural schematic diagram of a wireless communication system according to an exemplary embodiment of the present application; [Figure 2] 1 is a flowchart of a communication method according to an exemplary embodiment of the present application; [Figure 3] 2 is a second flowchart of a communication method according to an exemplary embodiment of the present application; [Figure 4] 3 is a third flowchart of a communication method according to an exemplary embodiment of the present application. [Figure 5] 1 is a structural schematic diagram of a communication device according to an exemplary embodiment of the present application; [Figure 6] FIG. 2 is a structural schematic diagram of a terminal according to an exemplary embodiment of the present application; DETAILED DESCRIPTION OF THE INVENTION

[0016] The following clearly describes the technical solutions in the embodiments of the present application, in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application fall within the scope of protection of the present application.

[0017] The terms "first," "second," etc., used in the specification and claims of this application are intended to distinguish between similar objects and are not intended to describe a particular order or sequence. It should be understood that terms used in this manner are interchangeable where appropriate, so that the embodiments of this application may be performed in an order other than that illustrated or described herein. Furthermore, the objects distinguished by "first" and "second" are generally of the same type and do not limit the number of objects; for example, the first object may be one or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the related objects before and after have an "or" relationship.

[0018] It should be noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be applied to other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are always used interchangeably, and the described techniques may be used in the above-mentioned systems and radio technologies as well as other systems and radio technologies. Although the following description describes New Radio (NR) systems for illustrative purposes and uses NR terminology in most of the following description, these technologies may also be used in applications other than NR system applications, such as sixth generation (6G) systems. th This may be applied to 6G (6th Generation) communication systems.

[0019] 1 shows a block diagram of a wireless communication system to which an embodiment of the present application can be applied. The wireless communication system includes a terminal 11 and a network side device 12. Here, the terminal 11 may be a mobile phone, a tablet personal computer (Tablet Personal Computer), a laptop computer (also called a notebook computer), a personal digital assistant (PDA), a palmtop computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (Mobile Internet Device (MID)), an augmented reality (AR) / virtual reality (VR) device, a robot, a wearable device, a vehicle user equipment (VUE), a pedestrian user equipment (PUE), a smart home (home devices with wireless communication capabilities, such as a refrigerator, a television, a washing machine, or furniture), a game console, a personal computer (Personal The network side device 12 may be a terminal side device such as a personal computer (PC), a teller machine or a self-service machine, and the wearable device may be a smart watch, a smart wristband, a smart earphone, a smart glasses, a smart accessory (a smart bracelet, a smart hand chain, a smart ring, a smart necklace, a smart ankle bracelet, a smart anklet, etc.), a smart band, a smart clothing, etc. It should be noted that the terminal 11 in the embodiments of the present application is not limited to a specific type. The network side device 12 may include an access network device or a core network device, where the access network device may be referred to as a radio access network device, a radio access network (RAN), a radio access network function, or a radio access network unit.The access network equipment may include a base station, a wireless local area network (WLAN) access point (AS), or a wireless fidelity (WiFi) node. The base station may be referred to as a Node B (NB), an evolved Node B (eNB), an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home Node B (HNB), a home evolved Node B, a transmission reception point (TRP), or any other appropriate term in the art. The base station is not limited to a specific technical term as long as the same technical effect is achieved. It should be noted that the embodiments of the present application will be described using only base stations in an NR system as an example, and the specific type of base station is not limited.

[0020] The following describes in detail the technical solutions according to the embodiments of the present application through several embodiments and their application scenarios in conjunction with the drawings.

[0021] 2, there is shown a flowchart of a communication method 200 according to an exemplary embodiment of the present application. The method may be performed by a terminal, particularly, but not limited to, hardware and / or software installed on the terminal. In this embodiment, the method 200 may include at least the following steps:

[0022] S210, the terminal processes the target transmission based on bandwidth capability.

[0023] Here, the bandwidth capability of the terminal (also referred to as baseband bandwidth) may be understood as the capability of the terminal to process signals or the capability of baseband processing data. In contrast, in this embodiment, the bandwidth capability of the terminal is a predetermined value, and the predetermined value is 5 MHz or less, for example, 5 MHz, 4 MHz, etc. That is, the terminal referred to in this embodiment is a RedCap terminal, for example, a RedCap terminal in R18.

[0024] It should be noted that when the bandwidth capability of the terminal is 5 MHz, this 5 MHz bandwidth capability may also be understood as the frequency domain resource being 25, 28, or 27 physical resource blocks (PRBs) for a subcarrier spacing (SCS) of 15 KHz, and the frequency domain resource being 11, 12, 13, or 14 PRBs for a SCS of 30 KHz.

[0025] The target transmission includes a first downlink transmission and / or a first uplink transmission. In this embodiment, according to different communication processes, the first downlink transmission and the first uplink transmission may be independent of each other, or the first uplink transmission may be scheduled by the first downlink transmission, and this is not limited thereto. Of course, the first downlink transmission and the first uplink transmission described in this embodiment may be initial transmissions or retransmissions.

[0026] For example, in a four-step random access process, the first downlink transmission may include an initial transmission and / or a retransmitted message 2 (MSG 2), and the first uplink transmission may include first feedback information and / or an initial transmission or a retransmitted MSG 3, where MSG 3 is scheduled by MSG 2 or target Downlink Control Information (DCI).

[0027] Alternatively, the target DCI may be, but is not limited to, a Temporary Cell Radio Network Temporary Identifier (TC-RNTI) or a DCI scrambled by a Cell (C)-RNTI. Alternatively, when scheduling MSG 3 according to the target DCI, a Frequency Domain Resource Allocation (FDRA) field in the target DCI may indicate that the total frequency domain resources for MSG 3 (e.g., retransmitted MSG 3) do not exceed a predetermined value.

[0028] The first feedback information corresponds to MSG 4, for example, the first feedback information is feedback information of a Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) scheduled by MSG 4.

[0029] For example, in a two-step random access process, the first downlink transmission may be an initial transmission and / or a retransmitted MSG B, and the first uplink transmission includes MSG A and / or second feedback information. The second feedback information corresponds to MSG B, for example, the second feedback information is feedback information of a HARQ-ACK scheduled by MSG B.

[0030] In the small data transmission process, the first uplink transmission includes a physical uplink shared channel (PUSCH) based on a configured grant (CG) and / or a PUSCH based on random access (RA).

[0031] In this embodiment, the terminal processes the target transmission based on its own bandwidth capability, thereby relaxing the constraints on scheduling / configuration by the network side, for example allowing the frequency domain resources used for the target transmission to exceed or not exceed the bandwidth capability of the terminal, ensuring that the terminal realizes a normal communication process and further ensuring communication quality.

[0032] 3 is a flowchart of a communication method 300 according to an exemplary embodiment of the present application, which may be performed by a terminal, in particular, but not limited to, hardware and / or software installed on the terminal. In this embodiment, the method 300 may include at least the following steps:

[0033] S310, the terminal processes the target transmission based on bandwidth capability.

[0034] Here, the bandwidth capability of the terminal is a predetermined value, the predetermined value is less than or equal to 5 MHz, and the target transmission includes a first downlink transmission and / or a first uplink transmission.

[0035] As can be understood, the implementation process of S310 can refer to the relevant description in method embodiment 200. In addition, as one possible implementation method, the processing method when the terminal processes the target transmission based on bandwidth capability includes at least one of the following methods 1 to 6:

[0036] Method 1: It is expected that the size of the total frequency domain resources used for the first downlink transmission does not exceed the predetermined value.

[0037] Here, the "expectation" referred to in this Scheme 1 and subsequent embodiments may be understood to mean that the network side device cannot guarantee whether the frequency domain resources used for downlink transmission and the total frequency domain resources scheduled or configured for uplink transmission do not exceed a predetermined value.

[0038] For example, in Scheme 1, when the terminal expects that the total size of frequency domain resources used for the first downlink transmission does not exceed the predetermined value, the network side device may perform the first downlink transmission using frequency domain resources that exceed the predetermined value, or may perform the first downlink transmission using frequency domain resources that do not exceed the predetermined value. That is, in Scheme 1, the network side device cannot guarantee that the first downlink transmission will be performed using frequency domain resources that do not exceed the predetermined value.

[0039] Method 2: The total size of the frequency domain resources used for the first downlink transmission is not expected to exceed the predetermined value.

[0040] Here, the term "not expected" referred to in this Scheme 2 and subsequent embodiments may be understood to mean that the network side device ensures that the frequency domain resources used for downlink transmission and the total frequency domain resources scheduled or configured for uplink transmission do not exceed a predetermined value.

[0041] For example, in Scheme 2, when the terminal does not expect that the total size of frequency domain resources used for the first downlink transmission exceeds the predetermined value, the network side device may not transmit the first downlink transmission using frequency domain resources exceeding the predetermined value. That is, in Scheme 2, the network side device ensures that the first downlink transmission is transmitted using frequency domain resources not exceeding the predetermined value.

[0042] Method 3: When the size of the total frequency domain resources used for the first downlink transmission exceeds the predetermined value, the first operation is performed.

[0043] For Scheme 3, it can be understood that the terminal processes the first downlink transmission based on the total frequency domain resources used for the first downlink transmission and the bandwidth capability of the terminal. Based on this, the implementation process of Scheme 3 will be described below by combining different implementation schemes, and the content is as follows:

[0044] First type of realization method When the size of the total frequency domain resources used for the first downlink transmission exceeds the predetermined value, the terminal demodulates the first downlink transmission and performs at least one of the following (11) to (15):

[0045] (11) Expecting that the time between the last time unit in which the first downlink transmission is located and the first time unit in which the second uplink transmission is located is equal to or greater than a first time threshold.

[0046] Here, the "time unit" referred to in the context of this application may be a symbol, a slot, a sub-slot, etc., and is not limited hereto.

[0047] Furthermore, the second uplink transmission is an uplink transmission scheduled by the first downlink transmission.

[0048] (12) It is not expected that the time from the first time unit in which the second uplink transmission is located to the last time unit in which the first downlink transmission is located is less than a first time threshold.

[0049] (13) Abandon the second uplink transmission if the time between the last time unit in which the first downlink transmission is located and the first time unit in which the second uplink transmission is located is less than a first time threshold.

[0050] (14) When the time between the last time unit in which the first downlink transmission is located and the first time unit in which the second uplink transmission is located is equal to or greater than a first time threshold, the second uplink transmission is performed.

[0051] (15) If the time between the last time unit in which the first downlink transmission is located and the first time unit in which the second uplink transmission is located is less than a first time threshold, determine that the random access process corresponding to the first downlink transmission has failed.

[0052] Optionally, the terminal's action of determining that the random access process corresponding to the first downlink transmission has failed when the time between the last time unit in which the first downlink transmission is located and the first time unit in which the second uplink transmission is located is smaller than a first time threshold, as described in (15) above, may further include determining that the random access process corresponding to the first downlink transmission has failed when the first downlink transmission is a first number and the time between the last time unit in which the first number of first downlink transmissions are located and the first time unit in which the second uplink transmission is located is smaller than a first time threshold.

[0053] Here, the first number of first downlink transmissions includes an initial transmission and / or a repeated transmission of the first downlink transmission. For example, when the first number is 1, the first downlink transmission is an initial transmission, and when the first number is an integer greater than 1, the first downlink transmission includes an initial transmission and at least one repeated transmission.

[0054] In this embodiment, the first number may be predetermined by a protocol or realized by a network configuration, and is not limited here.

[0055] Furthermore, as one possible implementation, the first time threshold referred to in this embodiment may be understood as a minimum time capability required for a terminal to finish processing a first downlink transmission and prepare a second uplink transmission. In this embodiment, the first time threshold may be implemented by a protocol agreement or a higher layer configuration and may be determined based on a first reference time and a time required for the terminal to process downlink transmission on a first designated frequency domain resource, where the first designated frequency domain resource is determined based on a resource difference between the total frequency domain resources used for the first downlink transmission and the predetermined value. For example, if the total frequency domain resources used for the first downlink transmission are N1 MHz and the predetermined value is 5 MHz, the first designated frequency domain resource is (N1-5) MHz, and the first time threshold is determined based on the first reference time and a processing time required for the terminal to process the frequency domain resources of (N1-5) MHz.

[0056] Based on this, the first time threshold Tmin may be expressed as the following equation (1).

[0057] JPEG2025534847000002.jpg21166

[0058] Here, T1 is the first reference time, which may be predetermined by a protocol. For example, if the first downlink transmission is a Random Access Response (RAR, i.e., MSG 2), T1=N T,1 +N T,2 +0.5 ms and the first downlink transmission is an initial transmission or retransmission of MSG 4 or MSG B, T1=N T,1 +0.5 milliseconds, N1 is the total frequency domain resources used for the first downlink transmission, M is the predetermined value, and N T,1is the duration of N1 time units corresponding to the processing time of the PDSCH of terminal processing capability 1 when an additional Physical Downlink Shared Channel (PDSCH) Demodulation-Reference Signal (DM-RS) is configured, and N T,2 is the duration of N2 time units corresponding to the PUSCH processing time of the terminal processing capability 1 when an additional physical uplink shared channel PUSCH DM-RS is configured.

[0059] It should be noted that by considering the resource difference between the frequency domain resources used for the first downlink transmission and the terminal bandwidth capability (predetermined value), the processing time requirement for terminals with limited baseband bandwidth capability (i.e., RedCap) in the communication process can be relaxed (e.g., the first time threshold is greater than the minimum processing time requirement of other terminals in R18), and the network side can relax the restrictions on frequency domain resource scheduling / configuration, allowing all terminal types to share the resource allocation of the first downlink transmission, thereby ensuring the feasibility and reliability of the behavior of terminals with limited baseband bandwidth capability.

[0060] Second type of realization method When the number of first downlink transmissions is a second number and the size of total frequency domain resources used for the second number of first downlink transmissions exceeds the predetermined value, at least one of the following (21) to (24) is executed. Here, the second number of first downlink transmissions includes an initial transmission and / or a repeated transmission of the first downlink transmission. For example, when the second number is 1, the first downlink transmission is an initial transmission, and when the second number is an integer greater than 1, the first downlink transmission includes an initial transmission and at least one repeated transmission. In this embodiment, the second number may be predetermined by a protocol or realized by a network configuration, and is not limited thereto.

[0061] (21) The terminal is not required to demodulate the first downlink transmission. Here, for (21), it may be understood that the terminal may or may not demodulate the first downlink transmission.

[0062] (22) Skip (or ignore) demodulation of the first downlink transmission.

[0063] (23) The terminal determines whether to demodulate the first downlink transmission.

[0064] Here, for example, the terminal may decide whether to demodulate based on the implementation information, and the implementation information of the terminal may be demodulation information (e.g., demodulate or not demodulate) of the first downlink transmission that is preset inside the terminal by the terminal at the time of shipment, or may be communication process information initiated by the terminal, etc., and is not limited thereto.

[0065] For example, when the implementation information of the terminal is demodulation information of the first downlink transmission preset in the terminal when shipped by the terminal, the demodulation information of the first downlink transmission preset in the terminal may be such that when a situation occurs in which the total amount of frequency domain resources used for the first downlink transmission is greater than the predetermined value, the terminal demodulates or does not demodulate the first downlink transmission according to the demodulation information of the first downlink transmission preset, and is not limited thereto.

[0066] Also, for example, when the implementation information of the terminal itself is a communication process initiated by the terminal, the communication process initiated by the terminal may be a random access process, etc. In one implementation manner, if the communication process initiated by the terminal is a random access process, when the terminal initiates the random access process and the total frequency domain resources used for a first downlink transmission in the random access process exceed a predetermined value, the terminal demodulates the first downlink transmission.

[0067] (24) Confirm that the random access process corresponding to the first downlink transmission has failed.

[0068] Regarding the processing behavior for the first downlink transmission mentioned in the above-mentioned methods 1 to 3, the restrictions on scheduling / configuration by network side devices are relaxed (for example, allowing the frequency domain resources used for the first downlink transmission to exceed the bandwidth capability (e.g., 5 MHz) of the terminal, and allowing the time for scheduling the uplink transmission to not meet the minimum processing time requirement for the terminal defined in R18), and impacts on non-RedCap terminals are avoided (for example, only restricting that the downlink frequency domain resources of RedCap do not exceed a predetermined value), while reducing the processing complexity of terminals with limited baseband bandwidth capability (for example, allowing the terminal to abandon demodulation of the first downlink transmission), or further relaxing the processing time requirement for terminals with limited baseband bandwidth capability by setting a first time threshold in the above-mentioned implementation methods with respect to the minimum processing time requirement for terminals defined in R18, thereby improving the flexibility of the entire communication network from both the network side and the terminal side.

[0069] Method 4: It is expected that the size of the total frequency domain resources configured or scheduled for the first uplink transmission does not exceed the predetermined value.

[0070] Method 5: The size of the total frequency domain resources configured or scheduled for the first uplink transmission is not expected to exceed the predetermined value.

[0071] Regarding Methods 4 and 5, please refer to the related descriptions in Methods 1 and 2 above, and no further explanation will be given here.

[0072] Method 6: When the size of the total frequency domain resources configured or scheduled for the first uplink transmission exceeds the predetermined value, the terminal performs a second operation.

[0073] Regarding Scheme 6, it may be understood that the terminal processes the first uplink transmission based on the total frequency domain resources used for the first uplink transmission and the bandwidth capability of the terminal. Based on this, the following describes the implementation process of Scheme 6, and the content is as follows:

[0074] When the size of total frequency domain resources configured or scheduled for the first uplink transmission exceeds the predetermined value, the terminal performs at least one of the following (31) to (34), where the first uplink transmission is an uplink transmission scheduled by the second downlink transmission:

[0075] (31) Abandoning the first uplink transmission.

[0076] (32) Abandon the first uplink transmission if the time between the last time unit in which the second downlink transmission is located and the first time unit in which the first uplink transmission is located is less than a second time threshold.

[0077] (33) The first uplink transmission is performed if the time between the last time unit in which the second downlink transmission is located and the first time unit in which the first uplink transmission is located is not less than a second time threshold.

[0078] (34) Determining that the random access process corresponding to the first uplink transmission has failed. Optionally, determining that the random access process corresponding to the first uplink transmission has failed includes determining that the random access process corresponding to the first uplink transmission has failed if the first uplink transmission is a third number and the third number of first uplink transmissions are scheduled by a third number of consecutively received second downlink transmissions. Here, the third number of second downlink transmissions include an initial transmission and / or a repeated transmission of the second downlink transmission. For example, when the third number is 1, the second downlink transmission is an initial transmission, and when the third number is an integer greater than 1, the second downlink transmission includes an initial transmission and at least one repeated transmission. In this embodiment, the third number may be predetermined by a protocol or implemented by a network configuration, and is not limited thereto.

[0079] Furthermore, similar to the first time threshold, the second time threshold referred to in this embodiment may also be understood as the minimum time capability required for the terminal to complete processing of the second downlink transmission and prepare for the first uplink transmission. In this embodiment, the second time threshold may be realized by a protocol agreement or a network-side configuration and may be determined based on a second reference time and a preparation time required for the terminal to transmit an uplink transmission on a second designated frequency domain resource, where the second designated frequency domain resource is determined based on a resource difference between the frequency domain resource used for the first uplink transmission and the predetermined value. For example, if the total frequency domain resource used for the first uplink transmission is N2 MHz and the predetermined value is 5 MHz, the second designated frequency domain resource is (N2-5) MHz, and the second time threshold is determined based on the second reference time and a preparation time required for the terminal to transmit an uplink transmission on the frequency domain resource of (N2-5) MHz.

[0080] Based on this, in one implementation, the second time threshold T'min may be identified as follows: T'min=T'min / T'min / T'min / T'min.

[0081] JPEG2025534847000003.jpg21166

[0082] where T2 is the second reference time, which may be predetermined by a protocol. For example, when the first uplink transmission is scheduled by RAR (i.e., the second downlink transmission), T2=N T,1 +N T,2 +0.5 ms, and the first uplink transmission is scrambled by TC-RNTI and scheduled by DCI (i.e., second downlink transmission) carrying an uplink grant (UL grant), T1=N T,2 milliseconds, N2 is the total frequency domain resource value used for the first uplink transmission, M is the predetermined value, and N T,1 is the duration of N1 time units corresponding to the processing time of the PDSCH of the terminal processing capability 1 when the additional physical downlink shared channel PDSCH demodulation reference signal DM-RS is configured, and N T,2 is the duration of N2 time units corresponding to the PUSCH processing time of the terminal processing capability 1 when an additional physical uplink shared channel PUSCH DM-RS is configured.

[0083] It should be noted that by considering the resource difference between the frequency domain resource used for the first uplink transmission and the terminal bandwidth capability (predetermined value), the processing time requirement of the terminal with limited baseband bandwidth capability in the communication process can be relaxed (for example, the second time threshold is greater than the minimum processing time requirement of the terminal in R18), and the restrictions on the scheduling / configuration of frequency domain resources by the network side can be relaxed, ensuring the feasibility and reliability of the behavior of the terminal with limited baseband bandwidth capability.

[0084] Regarding the processing behavior for the first uplink transmission mentioned in the above methods 4 to 6, the restrictions on scheduling / configuration by network side devices are relaxed (for example, allowing the frequency domain resources used for the first uplink transmission to exceed the bandwidth capability (e.g., 5 MHz) of the terminal, and allowing the time for scheduling the uplink transmission to not meet the minimum processing time requirement of the terminal defined in R18), and impacts on non-RedCap terminals are avoided (for example, only restricting that the uplink frequency domain resources of RedCap do not exceed a predetermined value), while reducing the processing complexity of terminals with limited baseband bandwidth capabilities (for example, allowing the terminal to abandon the first uplink transmission), or further relaxing the terminal processing time requirement by setting a second time threshold in the above implementation methods with respect to the minimum processing time requirement of the terminal defined in R18. This improves the flexibility of the entire communication network from both the network side and the terminal side.

[0085] It should be noted that with regard to the first uplink transmission, the first downlink transmission, the second uplink transmission, and the second uplink transmission mentioned in the above-mentioned methods 1 to 6, in the actual communication process, the first uplink transmission and the second uplink transmission may be the same or different, and the first downlink transmission and the second downlink transmission may also be the same or different, and are not limited here.

[0086] 4, there is shown a flowchart of a communication method 400 according to an exemplary embodiment of the present application, which may be performed by a terminal, specifically, but not limited to, hardware and / or software installed on the terminal. In this embodiment, the method 400 may include at least the following steps:

[0087] S410, the terminal processes the target transmission based on bandwidth capability.

[0088] Here, the bandwidth capability of the terminal is a predetermined value, the predetermined value is less than or equal to 5 MHz, and the target transmission includes a first downlink transmission and / or a first uplink transmission.

[0089] As can be understood, the implementation process of S410 can refer to the relevant descriptions in method embodiments 200 and / or 300. In addition, as one possible implementation method, as shown in FIG. 4, when the terminal processes the target transmission based on its bandwidth capability, the implementation process of S410 may include S411, in which the terminal processes the target transmission based on its bandwidth capability and first information.

[0090] Here, the first information includes at least one of the following (41) to (44):

[0091] (41) Whether the terminal transmits terminal capability information.

[0092] Here, the terminal capability information includes that the maximum bandwidth capability supported by the terminal is 20 MHz and / or that the maximum baseband bandwidth capability supported by the terminal is 5 MHz. In one implementation, the terminal capability information may further include all (or required) capability information of a RedCap terminal defined in R17, all (or required) capability information of a RedCap terminal defined in R18, etc., and is not limited thereto.

[0093] (42) Whether the terminal transmits second information, the second information including terminal identification information or terminal early identification information, the terminal identification information or terminal early identification information being used to instruct a network side device that the type of the terminal at least includes that the bandwidth capability of the terminal is the predetermined value. In one implementation, the terminal early identification information may include RedCap terminal early identification information defined in R17 and / or RedCap terminal early identification information defined in R18.

[0094] In one implementation, for the random access process, the second information may be carried and transmitted by MSG 1 and / or MSG 3. For example, MSG 1 may carry shared second information (e.g., RedCap terminal early identification information defined in R17), and / or MSG 3 may carry shared or specific second information (e.g., RedCap terminal early identification information defined in R18). Based on this, in this embodiment, R18 RedCap reuses the MSG 1 resource of R17 RedCap that carries the terminal early identification information, thereby avoiding further division of the Physical Random Access Channel (PRACH) / MSG 1 resource and ensuring the reliability of the communication process.

[0095] (43) Whether the terminal is configured with an independent (or separate) initial bandwidth part (BWP) including an initial uplink (UL) BWP and / or an initial downlink (DL) BWP. In this embodiment, the independent initial BWP includes at least one of the following: the maximum bandwidth of the independent initial BWP does not exceed 20 MHz; and the maximum bandwidth of the independent initial BWP does not exceed 5 MHz.

[0096] In one implementation, for a cell that simultaneously supports Rel 17 RedCap terminals and Rel 18 RedCap terminals, if the network side equipment configures an independent initial BWP for the Rel-17 RedCap terminal, the maximum bandwidth of this independent initial BWP may be 20 MHz, and the Rel-18 RedCap terminal and the Rel-17 RedCap terminal may share the same independent initial DL / UL BWP; otherwise, the Rel-18 RedCap terminal and the Rel-17 RedCap terminal share the same initial BWP with the non-RedCap terminal.

[0097] On the other hand, for a cell that supports only Rel-18 RedCap terminals and non-RedCap terminals, the network side equipment may configure one independent initial BWP for the Rel-18 RedCap terminal by utilizing the mechanism of the independent initial BWP configured for the Rel-17 RedCap terminal in the relevant protocol. However, since there are no Rel-17 RedCap terminals in the cell at this time, the maximum bandwidth of the independent initial BWP configured by the network side equipment for the R18 RedCap terminal may be a predetermined value, for example, 5 MHz.

[0098] (44) Carrier information carrying third information including the terminal capability information and / or the second information. Here, the carrier information may also be referred to as an early indication or a RedCap indication. In this embodiment, the carrier information carrying the third information is used to indicate whether the third information is transmitted in MSG 1 or MSG 3.

[0099] It should be noted that, taking the transmission of the aforementioned terminal early identification information as an example, it may be transmitted by the terminal when the network side equipment enables the terminal early identification instruction, or may be transmitted autonomously by the terminal, and is not limited thereto.

[0100] Based on this, when the terminal processes the target transmission based on the bandwidth capability and the first information, if the first information includes at least one of the following: the terminal has sent the terminal capability information; the terminal has sent the second information; the carrier information carrying the second information; and an independent initial BWP is configured in the terminal, the terminal performs at least one of the following (51) to (55):

[0101] (51) Expecting that the size of the total frequency domain resource of the target transmission does not exceed the predetermined value.

[0102] (52) When the size of the total frequency domain resources used for the first downlink transmission exceeds the predetermined value, the first downlink transmission is demodulated, and it is expected that the reception time between the last time unit in which the first downlink transmission is located and the first time unit in which the second uplink transmission is located is equal to or greater than a first time threshold.

[0103] (53) If the first downlink transmission is a first retransmission and the size of the total frequency domain resources used for the first downlink transmission exceeds the predetermined value, it is determined that the random access process has failed.

[0104] (54) When the size of the total frequency domain resources used for the first uplink transmission exceeds the predetermined value, it is expected that the reception time between the last time unit in which the first downlink transmission is located and the first time unit in which the first uplink transmission is located is not smaller than a second time threshold.

[0105] (55) If the first uplink transmission is an uplink transmission scheduled by a first retransmission and the size of the total frequency domain resources used for the first uplink transmission exceeds the predetermined value, determine that the random access process has failed.

[0106] It can be understood that for the implementation process of (51) to (55), reference can be made to the relevant descriptions in Examples 200 to 300 of the above-mentioned method, and the same or corresponding technical effects can be achieved, and no further description will be given here.

[0107] Based on the description of the above-mentioned method in Examples 200 to 400, the following further introduces the communication method according to the present application in combination with Examples 1 to 3, and the content is as follows: It should be noted that the bandwidth capability of the R17 RedCap terminal mentioned in this embodiment is 20 MHz, and the bandwidth capability of the R18 RedCap terminal is 5 MHz.

[0108] Example 1 Taking a four-step random access process as an example, if the bandwidth capability of a terminal (R18 RedCap terminal) is 5 MHz, the network side equipment enables the terminal early indication of MSG 1, and the terminal accordingly sends MSG 1 to the network side equipment to perform random access, and the MSG 1 carries second information (i.e., information on terminal early identification), the terminal may perform at least one of the following:

[0109] It is expected that the total frequency domain resources used for the RAR PDSCH are within 5 MHz. In other words, when the network side equipment correctly receives MSG 1 transmitted by the terminal, the network side equipment should ensure that the total frequency domain resources of the RAR of the terminal do not exceed 5 MHz.

[0110] If the terminal early instruction of MSG 1 is an instruction to share the R17 RedCap, the total resource of the frequency domain of the RAR corresponding to the R17 RedCap and the R18 RedCap does not exceed 5MHz.

[0111] If the terminal early instruction of MSG 1 is an instruction of R18 RedCap (newly introduced by the instruction of 18 RedCap), the total resource of the frequency domain of RAR corresponding to R18 RedCap shall not exceed 5MHz, and the total resource of the frequency domain of RAR of R17 RedCap may exceed 5MHz.

[0112] Alternatively, when the terminal receives the RAR PDSCH and the total frequency domain resources used for the RAR PDSCH exceed 5 MHz (i.e., the total frequency domain resources used for the RAR PDSCH are allowed to exceed 5 MHz), the terminal determines whether the time interval from the last symbol of the slot in which the RAR PDSCH is located to the first symbol in which the MSG 3 transmission scheduled by the RAR is located is equal to the minimum time capability required for the terminal to finish processing the RAR PDSCH and prepare for MSG 3 transmission, i.e., a first time threshold Tmin, for example JPEG2025534847000004.jpg26122 or JPEG2025534847000005.jpg26100, and N1 is the total frequency domain resources used for the RAR PDSCH.

[0113] Example 2 Taking the four-step random access process as an example, assume that the bandwidth capability of a terminal (R18 RedCap terminal) is 5 MHz, and the network side equipment does not enable the terminal early indication of MSG 1 (RedCap indication of MSG 1 is not enabled). Based on this, the terminal transmits MSG 1 to the network side equipment to perform random access. That is, when the network side equipment knows that there is a terminal in the cell that will initiate a random access process based on the received MSG 1, the total frequency domain resources used for the RAR PDSCH transmitted by the network side equipment may not exceed 5 MHz, or may exceed 5 MHz, based on the implementation of the network side equipment. Here, if the total frequency domain resources used for the RAR PDSCH transmitted by the network side equipment exceed 5 MHz, the terminal may perform at least one of the following:

[0114] If the time interval between the last symbol of the slot in which the RAR PDSCH is located and the first symbol in which the MSG 3 transmission scheduled by the RAR is located is not smaller than the minimum time capability Tmin required for the R18 terminal to finish processing the RAR PDSCH and prepare for MSG 3 transmission (i.e., smaller than the first time threshold), the terminal transmits MSG 3 after demodulating MSG 2; otherwise, the terminal abandons the transmission of MSG 3 or abandons the demodulation of MSG 2.

[0115] Alternatively, the terminal abandons demodulating MSG 2.

[0116] Example 3 Taking a 4-step random access process as an example, if the bandwidth capability of a terminal (e.g., an R18 RedCap terminal) is 5 MHz, for MSG 4, the terminal may always expect the frequency domain resource of the scheduled MSG 4 to be within 5 MHz, or the terminal always expects the frequency domain resource of the scheduled MSG 4 to be within 20 MHz.

[0117] However, if the terminal introduces / defines second information (e.g., information for early identification of R18 RedCap terminals) in MSG 3, that is, if a different logical channel identity (LCID) is assigned for an R18 RedCap terminal than for an R17 RedCap terminal, the terminal always expects the frequency domain resource of the scheduled MSG 4 to be within 5 MHz; otherwise, the terminal expects the frequency domain resource of the scheduled MSG 4 to be within 20 MHz.

[0118] Based on this, if the total frequency domain resources of MSG 4 scheduled by the network side device exceed 5 MHz, the terminal may perform one of the following:

[0119] Expecting that the time interval between the last symbol of the slot in which the MSG 4 PDSCH is located and the first symbol in which the PUCCH transmission carrying HARQ-ACK feedback for MSG 4 is located is not smaller than the minimum time capability required for the R18 terminal to finish processing the MSG 4 PDSCH and prepare for PUCCH transmission, i.e., the first time threshold; If the time interval between the last symbol of the slot in which the MSG 4 PDSCH is located and the first symbol in which the PUCCH transmission carrying the HARQ-ACK feedback for MSG 4 is located is not smaller than the minimum time capability Tmin required for the R18 terminal to finish processing the MSG 4 PDSCH and prepare for PUCCH transmission, the terminal transmits the PUCCH carrying the HARQ-ACK after demodulating MSG 4; otherwise, the terminal abandons the transmission of the PUCCH, or the terminal abandons the demodulation of MSG 4; The terminal abandons the transmission of the PUCCH, or the terminal abandons the demodulation of MSG 4.

[0120] Example 4 Taking the 4-step random access process as an example, if the bandwidth capability of a terminal (e.g., an R18 RedCap terminal) is 5 MHz and the network side equipment enables the terminal early indication of MSG 1, the terminal performs random access by transmitting MSG 1 (MSG 1 carries R17 RedCap terminal early identification information or R18 RedCap terminal early identification information) to the network side equipment, and receives MSG 2. The behavior of the Rel-18 RedCap terminal includes the Rel-18 RedCap terminal carrying the initial transmission of MSG 3 scheduled by the UL grant in the RAR and / or the UL grant, and expecting that the frequency domain resource indicated by the retransmitted FDRA field of MSG 3 scheduled by DCI format 0_0 scrambled by the TC-RNTI is within 5 MHz.

[0121] Otherwise, if the network side device does not enable the terminal early indication of MSG 1, the terminal transmits MSG 1 to the network side device to perform random access, and upon receiving MSG 2, the Rel-18 RedCap terminal's behavior includes allowing the frequency domain resource indicated by the FDRA field of MSG 3 scheduled by DCI format 0_0 scrambled by the RAR UL grant and / or the TC-RNTI carrying the UL grant to exceed 5 MHz, and when the frequency domain resource of MSG 3 received by the Rel-18 RedCap terminal exceeds 5 MHz, the Rel-18 RedCap terminal abandons the transmission of MSG 3.

[0122] As can be seen, for MSG 3, the transport block size (TBS) is 56 bits or 72 bits in most cases, and the required resource does not exceed 5 MHz. Therefore, there is no significant restriction on the network side (Network, NW) in allocating the resource for MSG 3 PUSCH within 5 MHz.

[0123] Example 5 Taking the 4-step random access process as an example, if the bandwidth capability of a terminal (e.g., an R18 RedCap terminal) is 5 MHz and the network side equipment does not enable the terminal early indication of MSG 1, the total frequency domain resources used for MSG 2 and MSG 3 may exceed 5 MHz, but for MSG 4, since the R17 RedCap indication needs to be sent in MSG 3, the frequency domain resources of MSG 4 must not exceed 5 MHz.

[0124] Based on this, when the network side does not enable the terminal early indication of MSG 1 and knows that there is a terminal in the cell that has initiated a random access process based on the received MSG 1, for MSG 2, if the scheduled frequency domain resource of the RAR PDSCH exceeds 5 MHz, the behavior of the R18 RedCap terminal includes at least one of (a) to (b).

[0125] (a) If the time interval between the last symbol of the slot in which the RAR PDSCH is located and the first symbol in which the MSG 3 transmission scheduled by the RAR is located is not smaller than the minimum time capability Tmin (i.e., the first time threshold) required for the terminal to finish processing the RAR PDSCH and prepare for MSG 3 transmission, the terminal transmits MSG 3 after demodulating MSG 2; otherwise, the terminal abandons the transmission of MSG 3 or abandons the demodulation of MSG 2.

[0126] (b) The terminal abandons demodulation of MSG 2.

[0127] For MSG 3, the frequency domain resource indicated by the FDRA field of MSG 3 scheduled by DCI format 0_0 scrambled by the RAR UL grant and / or the TC-RNTI carrying the UL grant is allowed to exceed 5 MHz, and when the frequency domain resource of MSG 3 received by a Rel-18 RedCap terminal exceeds 5 MHz, the Rel-18 RedCap terminal abandons the transmission of MSG 3.

[0128] For MSG 4, the terminal always expects that the frequency domain resources of the scheduled MSG 4 are within 5 MHz.

[0129] In the communication methods 200 to 400 according to the embodiments of the present application, the execution body may be a communication device. In the embodiments of the present application, the communication device according to the embodiments of the present application will be described by taking the communication device executing the communication method as an example.

[0130] 5, which is a structural schematic diagram of a communication device 500 according to an exemplary embodiment of the present application, the device 500 includes a processing module 510 for processing a target transmission based on a bandwidth capability, where the bandwidth capability of the terminal is a predetermined value, the predetermined value being equal to or less than 5 MHz, and the target transmission includes a first downlink transmission and / or a first uplink transmission.

[0131] Optionally, the device 500 further includes a transmission module for performing the target transmission.

[0132] Optionally, the processing module 510 processing the target transmission based on bandwidth capability includes at least one of: expecting a size of total frequency domain resources used for the first downlink transmission not to exceed the predetermined value; not expecting a size of total frequency domain resources used for the first downlink transmission not to exceed the predetermined value; performing a first operation if the size of total frequency domain resources used for the first downlink transmission exceeds the predetermined value; expecting a size of total frequency domain resources configured or scheduled for the first uplink transmission not to exceed the predetermined value; not expecting a size of total frequency domain resources configured or scheduled for the first uplink transmission not to exceed the predetermined value; and performing a second operation by the terminal if the size of total frequency domain resources configured or scheduled for the first uplink transmission exceeds the predetermined value.

[0133] Optionally, the processing module 510 performing a first operation when the size of the total frequency domain resources used for the first downlink transmission exceeds the predetermined value includes: demodulating the first downlink transmission when the size of the total frequency domain resources used for the first downlink transmission exceeds the predetermined value; and expecting that a time from a last time unit in which the first downlink transmission is located to a first time unit in which a second uplink transmission is located is equal to or greater than a first time threshold; not expecting that a time from a first time unit in which a second uplink transmission is located after the last time unit in which the first downlink transmission is located is less than a first time threshold; and performing at least one of: abandoning the second uplink transmission when a time period between the last time unit in which the first downlink transmission is located and the first time unit in which a second uplink transmission is located is smaller than a first time threshold; performing the second uplink transmission when a time period between the last time unit in which the first downlink transmission is located and the first time unit in which a second uplink transmission is located is equal to or greater than a first time threshold; and determining that a random access process corresponding to the first downlink transmission has failed when a time period between the last time unit in which the first downlink transmission is located and the first time unit in which a second uplink transmission is located is smaller than a first time threshold, wherein the second uplink transmission is an uplink transmission scheduled by the first downlink transmission.

[0134] Optionally, determining that the random access process corresponding to the first downlink transmission has failed when a time period from the last time unit in which the first downlink transmission is located to the first time unit in which a second uplink transmission is located is smaller than a first time threshold includes determining that the random access process corresponding to the first downlink transmission has failed when the first downlink transmission is a first number and a time period from the last time unit in which the first number of first downlink transmissions are located to the first time unit in which a second uplink transmission is located is smaller than a first time threshold, where the first number of first downlink transmissions include an initial transmission and / or a repeated transmission of the first downlink transmission.

[0135] Optionally, the performing of the first operation by the processing module 510 when the size of total frequency domain resources used for the first downlink transmissions exceeds the predetermined value includes performing at least one of not requesting the terminal to demodulate the first downlink transmissions, skipping demodulation of the first downlink transmissions, determining whether the terminal demodulates the first downlink transmissions, and confirming that a random access process corresponding to the first downlink transmissions has failed, when the first downlink transmissions are a second number and the size of total frequency domain resources used for the second number of the first downlink transmissions exceeds the predetermined value, where the second number of the first downlink transmissions include an initial transmission and / or a repeated transmission of the first downlink transmissions.

[0136] Optionally, the second operation includes at least one of: abandoning the first uplink transmission, abandoning the first uplink transmission if a time period between a last time unit in which a second downlink transmission is located and a first time unit in which the first uplink transmission is located is less than a second time threshold, performing the first uplink transmission if a time period between a last time unit in which a second downlink transmission is located and a first time unit in which the first uplink transmission is located is not less than a second time threshold, and determining that a random access process corresponding to the first uplink transmission has failed, wherein the first uplink transmission is an uplink transmission scheduled by the second downlink transmission.

[0137] Optionally, determining that the random access process corresponding to the first uplink transmission has failed includes determining that the random access process corresponding to the first uplink transmission has failed if the first uplink transmission is a third number and the third number of first uplink transmissions are scheduled by a third number of consecutively received second downlink transmissions, where the third number of second downlink transmissions include initial transmissions and / or repeated transmissions of the second downlink transmissions.

[0138] Optionally, the processing module 510 processing the target transmission based on bandwidth capability includes processing the target transmission based on the bandwidth capability and first information, where the first information includes at least one of whether the terminal transmits terminal capability information and whether the terminal transmits second information, the second information including terminal identification information or terminal early identification information, the terminal identification information or terminal early identification information being used to instruct a network side device that the type of the terminal at least includes that the bandwidth capability of the terminal is the predetermined value, whether an independent initial bandwidth portion BWP including an initial uplink BWP and / or an initial downlink BWP is configured in the terminal, and carrier information on which third information including the terminal capability information and / or the second information is carried.

[0139] Optionally, the processing module 510 processes the target transmission based on the bandwidth capability and the first information includes: expecting a total frequency domain resource size of the target transmission not to exceed the predetermined value when the first information includes at least one of that the terminal has transmitted the terminal capability information, that the terminal has transmitted the second information, carrier information carrying the second information, and that an independent initial BWP is configured for the terminal; demodulating the first downlink transmission when a total frequency domain resource size used for the first downlink transmission exceeds the predetermined value; and expecting a reception time from a last time unit in which the first downlink transmission is located to a first time unit in which the second uplink transmission is located to be equal to or greater than a first time threshold; determining that the random access process has failed if the first downlink transmission is a first retransmission and the size of the total frequency domain resources used for the first uplink transmission exceeds the predetermined value; expecting that a reception time from the last time unit in which the first downlink transmission is located to the first time unit in which the first uplink transmission is located is not smaller than a second time threshold if the size of the total frequency domain resources used for the first uplink transmission exceeds the predetermined value; and determining that the random access process has failed if the first uplink transmission is an uplink transmission scheduled by a first retransmission and the size of the total frequency domain resources used for the first uplink transmission exceeds the predetermined value.

[0140] Optionally, the first time threshold is determined based on a first reference time and a time required for the terminal to process a downlink transmission on a first designated frequency domain resource, and the first designated frequency domain resource is determined based on a resource difference between total frequency domain resources used for the first downlink transmission and the predetermined value.

[0141] Optionally, the first time threshold Tmin is determined by the following formula: JPEG2025534847000006.jpg1651, where T1 is the first reference time, N1 is the total frequency domain resources used for the first downlink transmission, M is the predetermined value, and N T,1 is the duration of N1 time units corresponding to the PDSCH processing time of terminal processing capability 1 when an additional physical downlink shared channel (PDSCH) demodulation reference signal (DM-RS) is configured.

[0142] Optionally, the second time threshold is determined based on a second reference time and a preparation time required for the terminal to attempt to transmit an uplink transmission on a second designated frequency domain resource, and the second designated frequency domain resource is determined based on a resource difference between a frequency domain resource used for the first uplink transmission and the predetermined value.

[0143] Optionally, the second time threshold T'min is determined by the following formula: JPEG2025534847000007.jpg1351, where T2 is the second reference time, N2 is the total frequency domain resource value used for the first uplink transmission, M is the predetermined value, and N T,2 is the duration of N2 time units corresponding to the PUSCH processing time of the terminal processing capability 1 when an additional physical uplink shared channel PUSCH DM-RS is configured.

[0144] Optionally, the terminal capability information includes at least one of: a maximum supported bandwidth capability of 20 MHz; and a maximum supported baseband bandwidth capability of 5 MHz.

[0145] Optionally, the independent initial BWP includes at least one of: a maximum bandwidth of the independent initial BWP not exceeding 20 MHz; and a maximum bandwidth of the independent initial BWP not exceeding 5 MHz.

[0146] Optionally, the second information is transmitted carried by messages MSG 1 and / or MSG 3.

[0147] Optionally, the MSG 1 carries shared second information and / or the MSG 3 carries shared or specific second information.

[0148] Alternatively, at least one of the following is satisfied: in a 4-step random access process, the first downlink transmission includes MSG 2 which is an initial transmission and / or a retransmitted MSG, the first uplink transmission includes first feedback information and / or MSG 3 which is an initial transmission or a retransmitted MSG, the MSG 3 is scheduled by MSG 2 or a target DCI, and the first feedback information corresponds to MSG 4; in a 2-step random access process, the first downlink transmission is MSG B which is an initial transmission and / or a retransmitted MSG, the first uplink transmission includes MSG A and / or second feedback information, and the second feedback information corresponds to MSG B; and in a small data transmission process, the first uplink transmission includes a PUSCH based on a grant configuration and / or a PUSCH based on random access.

[0149] The communication device 500 in the embodiment of the present application may be an electronic device, for example, an electronic device having an operating system, or a component of an electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal or other device other than a terminal. Exemplarily, the terminal may include, but is not limited to, the types of terminals 11 listed above. The other device may be a server, a network-attached storage (NAS), etc., and the embodiment of the present application is not specifically limited thereto.

[0150] The communication device according to the embodiment of the present application can implement each process implemented by the method embodiments of Figures 2 to 4 and achieve the same technical effects, and will not be further described here to avoid repetition of description.

[0151] The embodiments of the present application further provide a terminal, which includes a processor and a communication interface, the communication interface being coupled to the processor, and the processor running a program or instruction to implement the steps of the method described in the method embodiments 200 to 400. This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and the implementation processes and implementation methods of the above-mentioned method embodiments can be applied to this terminal embodiment, and the same technical effects can be achieved. Specifically, Figure 6 is a schematic diagram of the hardware structure implementing the terminal of the embodiment of the present application.

[0152] The terminal 600 includes at least some components such as, but not limited to, a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 608, a memory 609, and a processor 610.

[0153] As will be understood by those skilled in the art, the terminal 600 may further include a power source (e.g., a battery) for powering each component, and the power source may be logically connected to the processor 610 by a power management system, thereby enabling the power management system to realize functions such as charge / discharge management and power consumption management. The terminal structure shown in Figure 6 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than those shown, or a combination of some components, or a different arrangement of components, which will not be further described here.

[0154] It should be understood that in the embodiment of the present application, the input unit 604 may include a graphics processing unit (GPU) 6041 and a microphone 6042, and the graphics processor 6041 processes image data of still or video images captured by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 606 may include a display panel 6061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 607 includes at least one of a touch panel 6071 and other input devices 6072. The touch panel 6071 is also called a touch screen. The touch panel 6071 may include two parts: a touch detection device and a touch controller. The other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control buttons, switch buttons, etc.), a trackball, a mouse, and a control lever, which will not be further described herein.

[0155] In the embodiment of the present application, the radio frequency unit 601 can receive downlink data from the network side device and then transmit the data to the processor 610 for processing, and can also transmit uplink data to the network side device. Generally, the radio frequency unit 601 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0156] The memory 609 may be used to store software programs or instructions and various data. The memory 609 may include a first storage area that mainly stores programs or instructions and a second storage area that stores data. Here, the first storage area may store an operating system, an application program or instructions necessary for at least one function (e.g., an audio playback function, an image playback function, etc.), etc. The memory 609 may include volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. Here, the nonvolatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory may be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct Rambus random access memory (DRRAM). Memory 609 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

[0157] The processor 610 may include one or more processing units. Optionally, the processor 610 integrates an application processor and a modem processor. Here, the application processor mainly processes operations related to the operating system, user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. As can be understood, the modem processor does not have to be integrated into the processor 610.

[0158] Here, processor 610 is used to process the target transmission based on a bandwidth capability, where the bandwidth capability of the terminal is a predetermined value, the predetermined value being less than or equal to 5 MHz, and the target transmission includes a first downlink transmission and / or a first uplink transmission.

[0159] Optionally, the processing of the target transmission based on bandwidth capability by the processor 610 includes at least one of: expecting a size of total frequency domain resources used for the first downlink transmission not to exceed the predetermined value; not expecting a size of total frequency domain resources used for the first downlink transmission not to exceed the predetermined value; performing a first operation if the size of total frequency domain resources used for the first downlink transmission exceeds the predetermined value; expecting a size of total frequency domain resources configured or scheduled for the first uplink transmission not to exceed the predetermined value; not expecting a size of total frequency domain resources configured or scheduled for the first uplink transmission not to exceed the predetermined value; and performing a second operation by the terminal if the size of total frequency domain resources configured or scheduled for the first uplink transmission exceeds the predetermined value.

[0160] Optionally, the processor 610 performing a first operation when the size of total frequency domain resources used for the first downlink transmission exceeds the predetermined value includes: demodulating the first downlink transmission when the size of total frequency domain resources used for the first downlink transmission exceeds the predetermined value; and expecting that a time from a last time unit in which the first downlink transmission is located to a first time unit in which a second uplink transmission is located is equal to or greater than a first time threshold; not expecting that a time from a first time unit in which a second uplink transmission is located after the last time unit in which the first downlink transmission is located is less than a first time threshold; and demodulating the first downlink transmission when the size of total frequency domain resources used for the first downlink transmission exceeds the predetermined value. and performing at least one of: abandoning the second uplink transmission when a time period from the last time unit in which the first downlink transmission is located to the first time unit in which a second uplink transmission is located is smaller than a first time threshold; performing the second uplink transmission when a time period from the last time unit in which the first downlink transmission is located to the first time unit in which a second uplink transmission is located is equal to or greater than a first time threshold; and determining that a random access process corresponding to the first downlink transmission has failed when a time period from the last time unit in which the first downlink transmission is located to the first time unit in which a second uplink transmission is located is smaller than a first time threshold, wherein the second uplink transmission is an uplink transmission scheduled by the first downlink transmission.

[0161] Optionally, determining that the random access process corresponding to the first downlink transmission has failed when a time period from the last time unit in which the first downlink transmission is located to the first time unit in which a second uplink transmission is located is smaller than a first time threshold includes determining that the random access process corresponding to the first downlink transmission has failed when the first downlink transmission is a first number and a time period from the last time unit in which the first number of first downlink transmissions are located to the first time unit in which a second uplink transmission is located is smaller than a first time threshold, where the first number of first downlink transmissions include an initial transmission and / or a repeated transmission of the first downlink transmission.

[0162] Optionally, performing a first operation by the processor 610 when the size of total frequency domain resources used for the first downlink transmissions exceeds the predetermined value includes performing at least one of: not requesting the terminal to demodulate the first downlink transmissions, skipping demodulation of the first downlink transmissions, determining whether the terminal demodulates the first downlink transmissions, and confirming that a random access process corresponding to the first downlink transmissions has failed, when the first downlink transmissions are a second number and the size of total frequency domain resources used for the second number of the first downlink transmissions exceeds the predetermined value, where the second number of the first downlink transmissions include an initial transmission and / or a repeated transmission of the first downlink transmissions.

[0163] Optionally, the second operation includes at least one of: abandoning the first uplink transmission, abandoning the first uplink transmission if a time period between a last time unit in which a second downlink transmission is located and a first time unit in which the first uplink transmission is located is less than a second time threshold, performing the first uplink transmission if a time period between a last time unit in which a second downlink transmission is located and a first time unit in which the first uplink transmission is located is not less than a second time threshold, and determining that a random access process corresponding to the first uplink transmission has failed, wherein the first uplink transmission is an uplink transmission scheduled by the second downlink transmission.

[0164] Optionally, determining that the random access process corresponding to the first uplink transmission has failed includes determining that the random access process corresponding to the first uplink transmission has failed if the first uplink transmission is a third number and the third number of first uplink transmissions are scheduled by a third number of consecutively received second downlink transmissions, where the third number of second downlink transmissions include initial transmissions and / or repeated transmissions of the second downlink transmissions.

[0165] Optionally, the processor 610 processing the target transmission based on bandwidth capability includes processing the target transmission based on the bandwidth capability and first information, where the first information includes at least one of whether the terminal transmits terminal capability information and whether the terminal transmits second information, the second information including terminal identification information or terminal early identification information, the terminal identification information or terminal early identification information being used to indicate to a network side device that the type of the terminal at least includes that the bandwidth capability of the terminal is the predetermined value, whether an independent initial bandwidth portion BWP including an initial uplink BWP and / or an initial downlink BWP is configured for the terminal, and carrier information on which third information including the terminal capability information and / or the second information is carried.

[0166] Optionally, processing the target transmission based on the bandwidth capability and the first information by the processor 610 includes expecting that a total size of frequency domain resources of the target transmission does not exceed the predetermined value when the first information includes at least one of that the terminal has transmitted the terminal capability information, that the terminal has transmitted the second information, carrier information carrying the second information, and that an independent initial BWP is configured for the terminal; demodulating the first downlink transmission when a total size of frequency domain resources used for the first downlink transmission exceeds the predetermined value, and expecting that a reception time from a last time unit in which the first downlink transmission is located to a first time unit in which the second uplink transmission is located is equal to or greater than a first time threshold; determining that the random access process has failed if the first downlink transmission is a first retransmission and the size of the total frequency domain resources used for the first uplink transmission exceeds the predetermined value; expecting that a reception time from the last time unit in which the first downlink transmission is located to the first time unit in which the first uplink transmission is located is not smaller than a second time threshold if the size of the total frequency domain resources used for the first uplink transmission exceeds the predetermined value; and determining that the random access process has failed if the first uplink transmission is an uplink transmission scheduled by a first retransmission and the size of the total frequency domain resources used for the first uplink transmission exceeds the predetermined value.

[0167] Optionally, the first time threshold is determined based on a first reference time and a time required for the terminal to process a downlink transmission on a first designated frequency domain resource, and the first designated frequency domain resource is determined based on a resource difference between total frequency domain resources used for the first downlink transmission and the predetermined value.

[0168] Optionally, the first time threshold Tmin is determined by the following formula: JPEG2025534847000008.jpg1651, where T1 is the first reference time, N1 is the total frequency domain resources used for the first downlink transmission, M is the predetermined value, and N T,1 is the duration of N1 time units corresponding to the PDSCH processing time of terminal processing capability 1 when an additional physical downlink shared channel (PDSCH) demodulation reference signal (DM-RS) is configured.

[0169] Optionally, the second time threshold is determined based on a second reference time and a preparation time required for the terminal to attempt to transmit an uplink transmission on a second designated frequency domain resource, and the second designated frequency domain resource is determined based on a resource difference between a frequency domain resource used for the first uplink transmission and the predetermined value.

[0170] Optionally, the second time threshold T'min is determined by the following formula: JPEG2025534847000009.jpg1651, where T2 is the second reference time, N2 is the total frequency domain resource value used for the first uplink transmission, M is the predetermined value, and N T,2 is the duration of N2 time units corresponding to the PUSCH processing time of the terminal processing capability 1 when an additional physical uplink shared channel PUSCH DM-RS is configured.

[0171] Optionally, the terminal capability information includes at least one of: a maximum supported bandwidth capability of 20 MHz; and a maximum supported baseband bandwidth capability of 5 MHz.

[0172] Optionally, the independent initial BWP includes at least one of: a maximum bandwidth of the independent initial BWP not exceeding 20 MHz; and a maximum bandwidth of the independent initial BWP not exceeding 5 MHz.

[0173] Optionally, the second information is transmitted carried by messages MSG 1 and / or MSG 3.

[0174] Optionally, the MSG 1 carries shared second information and / or the MSG 3 carries shared or specific second information.

[0175] Alternatively, at least one of the following is satisfied: in a 4-step random access process, the first downlink transmission includes MSG 2 which is an initial transmission and / or a retransmitted MSG, the first uplink transmission includes first feedback information and / or MSG 3 which is an initial transmission or a retransmitted MSG, the MSG 3 is scheduled by MSG 2 or a target DCI, and the first feedback information corresponds to MSG 4; in a 2-step random access process, the first downlink transmission is MSG B which is an initial transmission and / or a retransmitted MSG, the first uplink transmission includes MSG A and / or second feedback information, and the second feedback information corresponds to MSG B; and in a small data transmission process, the first uplink transmission includes a PUSCH based on a grant configuration and / or a PUSCH based on random access.

[0176] As can be understood, each of the above-mentioned implementation methods according to this embodiment has the same or corresponding characteristics as each of the implementation methods mentioned in the method embodiments 200 to 400, so in this embodiment, each implementation process can refer to the relevant descriptions in the above-mentioned method embodiments 200 to 400, and can achieve the same or corresponding technical effects, and will not be further described here to avoid repetition of description.

[0177] The embodiments of the present application further provide a readable storage medium, which stores a program or instruction, and when the program or instruction is executed by a processor, it can realize each process of the above method embodiments 200 to 400 and achieve the same technical effects, which will not be further described here to avoid repetition.

[0178] Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0179] The embodiments of the present application further provide a chip, which includes a processor and a communication interface, and the communication interface is coupled to the processor, and the processor runs a program or instruction of a network side device, which is used to realize each process of the above method embodiments 200 to 400, and can achieve the same technical effects. In order to avoid repetition of description, no further description will be given here.

[0180] It should be understood that the chips referred to in the embodiments of this application may be referred to as system level chips, system chips, chip systems, or system-on-chips.

[0181] An embodiment of the present application further provides a computer program product, which includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor, and when the program or instruction is executed by the processor, it can realize each process of the above method embodiments 200 to 400 and achieve the same technical effect, and in order to avoid repetition of description, it will not be further described here.

[0182] The embodiments of the present application further provide a communication system, including a terminal and a network side device, wherein the terminal may be used to perform each process in the embodiments 200 to 400 of the method, and can achieve the same technical effects, which will not be further described here to avoid repetition.

[0183] It should be noted that, in this specification, the terms "comprises," "includes," and any other variations thereof are intended to cover the non-exclusive "comprises," whereby a process, method, article, or apparatus comprising a set of elements not only includes those elements but also other elements not expressly listed or inherent in such process, method, article, or apparatus. Absent further limitations, an element defined by the phrase "comprises one of," does not preclude the presence of other identical elements in the process, method, article, or apparatus comprising that element. It should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may include performing functions in an essentially simultaneous manner or in the reverse order based on the functions involved. For example, the described method may be performed in a different order than described, and various steps may be added, omitted, or combined. Furthermore, features described with reference to some examples may be combined in other examples.

[0184] As will be apparent to those skilled in the art from the above description of the embodiments, the methods of the above embodiments can be realized in the form of software and a necessary general-purpose hardware platform. Of course, they can also be realized in hardware, but in many cases the former is a more preferred embodiment. Based on this understanding, the technical proposal of the present application, in substance or in part contributing to the prior art, may be embodied in the form of a computer software product, which is stored in a storage medium (e.g., ROM / RAM, magnetic disk, optical disk) and includes a number of instructions for causing a terminal (which may be a mobile phone, computer, server, air conditioner, network device, etc.) to execute the methods described in each embodiment of the present application.

[0185] Although the embodiments of the present application have been described above in conjunction with the drawings, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not limiting. Those skilled in the art can take the teachings of the present application into account and implement many forms without departing from the spirit and scope of the claims, all of which fall within the scope of protection of the present application.

Claims

1. 1. A communication method comprising: The terminal processes the target transmission based on bandwidth capabilities; 11. The communication method, wherein the bandwidth capability of the terminal is a predetermined value, the predetermined value being less than or equal to 5 MHz, and the target transmission includes a first downlink transmission and / or a first uplink transmission.

2. The terminal processing the target transmission based on bandwidth capability, expecting that the size of total frequency domain resources used for the first downlink transmission does not exceed the predetermined value; not expecting that the size of total frequency domain resources used for the first downlink transmission will exceed the predetermined value; performing a first operation when a size of total frequency domain resources used for the first downlink transmission exceeds the predetermined value; expecting that the size of total frequency domain resources configured or scheduled for the first uplink transmission does not exceed the predetermined value; not expecting that the size of total frequency domain resources configured or scheduled for the first uplink transmission will exceed the predetermined value; and performing a second operation by the terminal when a size of total frequency domain resources configured or scheduled for the first uplink transmission exceeds the predetermined value.

3. performing a first operation when a size of total frequency domain resources used for the first downlink transmission exceeds the predetermined value; When a size of total frequency domain resources used for the first downlink transmission exceeds the predetermined value, the terminal demodulates the first downlink transmission; and expecting a time between a last time unit in which the first downlink transmission is located and a first time unit in which a second uplink transmission is located to be equal to or greater than a first time threshold; not expecting that the time from the first time unit in which the second uplink transmission is located to the last time unit in which the first downlink transmission is located is less than a first time threshold; Abandoning the second uplink transmission when a time between a last time unit in which the first downlink transmission is located and a first time unit in which a second uplink transmission is located is less than a first time threshold; performing the second uplink transmission when a time period between a last time unit in which the first downlink transmission is located and a first time unit in which a second uplink transmission is located is equal to or greater than a first time threshold; determining that the random access process corresponding to the first downlink transmission has failed if a time between a last time unit in which the first downlink transmission is located and a first time unit in which a second uplink transmission is located is less than a first time threshold; The communication method according to claim 2 , wherein the second uplink transmission is an uplink transmission scheduled by the first downlink transmission.

4. determining that the random access process corresponding to the first downlink transmission has failed when a time period between a last time unit in which the first downlink transmission is located and a first time unit in which a second uplink transmission is located is less than a first time threshold; determining that the random access process corresponding to the first downlink transmission has failed when the first downlink transmission is a first number and a time period between the last time unit in which the first downlink transmission is located and the first time unit in which a second uplink transmission is located is less than a first time threshold; The communication method of claim 3 , wherein the first number of the first downlink transmissions includes an initial transmission and / or a repeat transmission of the first downlink transmission.

5. performing a first operation when a size of total frequency domain resources used for the first downlink transmission exceeds the predetermined value; When the number of first downlink transmissions is a second number and the size of total frequency domain resources used for the second number of first downlink transmissions exceeds the predetermined value, not requesting that the terminal demodulate the first downlink transmission; skipping demodulation of the first downlink transmission; determining whether the terminal demodulates the first downlink transmission; and verifying that a random access procedure corresponding to the first downlink transmission has failed; The communication method of claim 2 , wherein the second number of the first downlink transmissions includes an initial transmission and / or a repeat transmission of the first downlink transmission.

6. The second operation is abandoning the first uplink transmission; and Abandoning the first uplink transmission when a time between a last time unit in which a second downlink transmission is located and a first time unit in which the first uplink transmission is located is less than a second time threshold; performing the first uplink transmission when a time interval between a last time unit in which a second downlink transmission is located and a first time unit in which the first uplink transmission is located is not less than a second time threshold; determining that a random access process corresponding to the first uplink transmission has failed; The communication method according to claim 2 , wherein the first uplink transmission is an uplink transmission scheduled by the second downlink transmission.

7. determining that a random access process corresponding to the first uplink transmission has failed; determining that a random access process corresponding to the first uplink transmissions has failed if the first uplink transmissions are a third number and the third number of first uplink transmissions are scheduled by a third number of consecutively received second downlink transmissions; The communication method of claim 6 , wherein the third number of second downlink transmissions includes an initial transmission and / or a repeat transmission of the second downlink transmission.

8. The terminal processing the target transmission based on bandwidth capability, the terminal processes the target transmission based on the bandwidth capabilities and first information; The first information is Whether the terminal sends terminal capability information; Whether the terminal transmits second information, the second information including terminal identification information or terminal early identification information, and the terminal identification information or terminal early identification information is used to indicate to a network side device that the type of the terminal at least includes that the bandwidth capability of the terminal is the predetermined value; Whether the terminal is configured with an independent initial bandwidth portion BWP including an initial uplink BWP and / or an initial downlink BWP; and The communication method according to claim 1 , further comprising at least one of the terminal capability information and / or carrier information carrying third information including the second information.

9. The terminal processing the target transmission based on the bandwidth capability and first information, When the first information includes at least one of the following: that the terminal has transmitted the terminal capability information; that the second information has been transmitted; carrier information carrying the second information; and that an independent initial BWP is configured in the terminal; Expecting that the size of the total frequency domain resource of the target transmission does not exceed the predetermined value; demodulating the first downlink transmission when a size of total frequency domain resources used for the first downlink transmission exceeds the predetermined value, and expecting that a reception time from a last time unit in which the first downlink transmission is located to a first time unit in which the second uplink transmission is located is equal to or longer than a first time threshold; determining that a random access process has failed when the first downlink transmission is a first retransmission and the size of total frequency domain resources used for the first downlink transmission exceeds the predetermined value; expecting that a reception time from a last time unit in which the first downlink transmission is located to a first time unit in which the first uplink transmission is located is not smaller than a second time threshold when a size of total frequency domain resources used for the first uplink transmission exceeds the predetermined value; and determining that a random access process has failed if the first uplink transmission is an uplink transmission scheduled by a first retransmission and if a size of a total frequency domain resource used for the first uplink transmission exceeds the predetermined value.

10. 10. The communication method according to claim 3, wherein the first time threshold is determined based on a first reference time and a time required for the terminal to process downlink transmission on a first designated frequency domain resource, and the first designated frequency domain resource is determined based on a resource difference between total frequency domain resources used for the first downlink transmission and the predetermined value.

11. The first time threshold Tmin is determined by the following formula: 、 T1 is the first reference time, N1 is the total frequency domain resources used for the first downlink transmission, M is the predetermined value, and N Ｔ，１ is a duration of N1 time units corresponding to the processing time of the PDSCH of the terminal processing capability 1 when the additional physical downlink shared channel PDSCH demodulation reference signal DM-RS is configured.

12. 10. The communication method according to claim 6 or 9, wherein the second time threshold is determined based on a second reference time and a preparation time required for the terminal to attempt to transmit an uplink transmission on a second designated frequency domain resource, and the second designated frequency domain resource is determined based on a resource difference between a frequency domain resource used for the first uplink transmission and the predetermined value.

13. The second time threshold T'min is determined by the following formula: 、 T2 is the second reference time, N2 is the total frequency domain resource value used for the first uplink transmission, M is the predetermined value, and N Ｔ，２ 13. The communication method of claim 12, wherein N2 is a duration of time units corresponding to a PUSCH processing time of a terminal processing capability 1 when an additional physical uplink shared channel (PUSCH) DM-RS is configured.

14. The terminal capability information is The maximum supported bandwidth capability is 20 MHz; and a maximum supported baseband bandwidth capability of 5 MHz.

15. The independent initial BWP is The maximum bandwidth of the independent initial BWP does not exceed 20 MHz; The communication method according to claim 8 or 9, comprising at least one of: a maximum bandwidth of the independent initial BWP not exceeding 5 MHz.

16. 10. The method of claim 8 or 9, wherein the second information is transmitted carried by messages MSG1 and / or MSG3.

17. The communication method of claim 16, wherein the MSG 1 carries shared second information and / or the MSG 3 carries shared or specific second information.

18. In a four-step random access process, the first downlink transmission includes an initial transmission and / or a retransmitted MSG 2, the first uplink transmission includes first feedback information and / or an initial transmission or a retransmitted MSG 3, the MSG 3 is scheduled by the MSG 2 or a target DCI, and the first feedback information corresponds to the MSG 4; In a two-step random access process, the first downlink transmission is an initial transmission and / or a retransmitted MSG B, the first uplink transmission includes MSG A and / or second feedback information, and the second feedback information corresponds to the MSG B; 18. The communication method according to claim 2, wherein in a small data transmission process, at least one of the following is satisfied: the first uplink transmission includes a PUSCH based on a grant configuration and / or a PUSCH based on random access.

19. A communication device, a processing module for processing the target transmission based on bandwidth capabilities; A communications device, wherein a bandwidth capability of a terminal is a predetermined value, the predetermined value being less than or equal to 5 MHz, and the target transmission includes a first downlink transmission and / or a first uplink transmission.

20. The processing module processing the target transmission based on bandwidth capabilities, expecting that the size of total frequency domain resources used for the first downlink transmission does not exceed the predetermined value; not expecting that the size of total frequency domain resources used for the first downlink transmission will exceed the predetermined value; performing a first operation when a size of total frequency domain resources used for the first downlink transmission exceeds the predetermined value; expecting that the size of total frequency domain resources configured or scheduled for the first uplink transmission does not exceed the predetermined value; not expecting that the size of total frequency domain resources configured or scheduled for the first uplink transmission will exceed the predetermined value; and performing a second operation by the terminal when a size of total frequency domain resources configured or scheduled for the first uplink transmission exceeds the predetermined value.

21. The processing module performing a first operation when a total size of frequency domain resources used for the first downlink transmission exceeds the predetermined value includes: demodulating the first downlink transmission when a size of total frequency domain resources used for the first downlink transmission exceeds the predetermined value; and expecting a time between a last time unit in which the first downlink transmission is located and a first time unit in which a second uplink transmission is located to be equal to or greater than a first time threshold; not expecting that the time from the first time unit in which the second uplink transmission is located to the last time unit in which the first downlink transmission is located is less than a first time threshold; Abandoning the second uplink transmission when a time between a last time unit in which the first downlink transmission is located and a first time unit in which a second uplink transmission is located is less than a first time threshold; performing the second uplink transmission when a time period between a last time unit in which the first downlink transmission is located and a first time unit in which a second uplink transmission is located is equal to or greater than a first time threshold; determining that the random access process corresponding to the first downlink transmission has failed if a time between a last time unit in which the first downlink transmission is located and a first time unit in which a second uplink transmission is located is less than a first time threshold; The communication device of claim 20 , wherein the second uplink transmission is an uplink transmission scheduled by the first downlink transmission.

22. determining that the random access process corresponding to the first downlink transmission has failed when a time period between a last time unit in which the first downlink transmission is located and a first time unit in which a second uplink transmission is located is less than a first time threshold; determining that the random access process corresponding to the first downlink transmission has failed when the first downlink transmission is a first number and a time period between the last time unit in which the first downlink transmission is located and the first time unit in which a second uplink transmission is located is less than a first time threshold; The communications device of claim 21 , wherein the first number of the first downlink transmissions includes an initial transmission and / or a repeat transmission of the first downlink transmission.

23. The processing module performing a first operation when a total size of frequency domain resources used for the first downlink transmission exceeds the predetermined value includes: When the number of first downlink transmissions is a second number and the size of total frequency domain resources used for the second number of first downlink transmissions exceeds the predetermined value, not requesting that the terminal demodulate the first downlink transmission; skipping demodulation of the first downlink transmission; determining whether the terminal demodulates the first downlink transmission; and verifying that a random access procedure corresponding to the first downlink transmission has failed; The communications device of claim 20 , wherein the second number of the first downlink transmissions includes an initial transmission and / or a repeat transmission of the first downlink transmission.

24. The second operation is abandoning the first uplink transmission; and Abandoning the first uplink transmission when a time between a last time unit in which a second downlink transmission is located and a first time unit in which the first uplink transmission is located is less than a second time threshold; performing the first uplink transmission when a time interval between a last time unit in which a second downlink transmission is located and a first time unit in which the first uplink transmission is located is not less than a second time threshold; determining that a random access process corresponding to the first uplink transmission has failed; The communications device of claim 20 , wherein the first uplink transmission is an uplink transmission scheduled by the second downlink transmission.

25. determining that a random access process corresponding to the first uplink transmission has failed; determining that a random access process corresponding to the first uplink transmissions has failed if the first uplink transmissions are a third number and the third number of first uplink transmissions are scheduled by a third number of consecutively received second downlink transmissions; 25. The communications device of claim 24, wherein the third number of second downlink transmissions includes an initial transmission and / or a repeat transmission of the second downlink transmission.

26. The processing module processing the target transmission based on bandwidth capabilities, processing the target transmission based on the bandwidth capability and first information; The first information is Whether the terminal sends terminal capability information; Whether the terminal transmits second information, the second information including terminal identification information or terminal early identification information, and the terminal identification information or terminal early identification information is used to indicate to a network side device that the type of the terminal at least includes that the bandwidth capability of the terminal is the predetermined value; Whether the terminal is configured with an independent initial bandwidth portion BWP including an initial uplink BWP and / or an initial downlink BWP; and The communication device according to claim 21 or 22, further comprising at least one of the terminal capability information and / or carrier information carrying third information including the second information.

27. The processing module processing the target transmission based on the bandwidth capability and first information, When the first information includes at least one of the following: that the terminal has transmitted the terminal capability information; that the second information has been transmitted; carrier information carrying the second information; and that an independent initial BWP is configured in the terminal; Expecting that the size of the total frequency domain resource of the target transmission does not exceed the predetermined value; demodulating the first downlink transmission when a size of total frequency domain resources used for the first downlink transmission exceeds the predetermined value, and expecting that a reception time from a last time unit in which the first downlink transmission is located to a first time unit in which the second uplink transmission is located is equal to or longer than a first time threshold; determining that a random access process has failed when the first downlink transmission is a first retransmission and the size of total frequency domain resources used for the first downlink transmission exceeds the predetermined value; expecting that a reception time from a last time unit in which the first downlink transmission is located to a first time unit in which the first uplink transmission is located is not smaller than a second time threshold when a size of total frequency domain resources used for the first uplink transmission exceeds the predetermined value; and determining that a random access process has failed if the first uplink transmission is an uplink transmission scheduled by a first retransmission and if a size of a total frequency domain resource used for the first uplink transmission exceeds the predetermined value.

28. 28. The communication device according to claim 21, wherein the first time threshold is determined based on a first reference time and a time required for the terminal to process downlink transmission on a first designated frequency domain resource, and the first designated frequency domain resource is determined based on a resource difference between a total frequency domain resource used for the first downlink transmission and the predetermined value.

29. The first time threshold Tmin is determined by the following formula: 、 T1 is the first reference time, N1 is the total frequency domain resources used for the first downlink transmission, M is the predetermined value, and N Ｔ，１ is a duration of N1 time units corresponding to the processing time of the PDSCH of the terminal processing capability 1 when the additional physical downlink shared channel PDSCH demodulation reference signal DM-RS is configured.

30. 28. The communication device according to claim 24 or 27, wherein the second time threshold is determined based on a second reference time and a preparation time required for the terminal to attempt to transmit an uplink transmission on a second designated frequency domain resource, and the second designated frequency domain resource is determined based on a resource difference between a frequency domain resource used for the first uplink transmission and the predetermined value.

31. The second time threshold T'min is determined by the following formula: 、 T2 is the second reference time, N2 is the total frequency domain resource value used for the first uplink transmission, M is the predetermined value, and N Ｔ，２ 31. The communication device of claim 30, wherein N2 is a duration of time units corresponding to a PUSCH processing time of a terminal processing capability 1 when an additional physical uplink shared channel PUSCH DM-RS is configured.

32. The terminal capability information is The maximum supported bandwidth capability is 20 MHz; 32. The communications device of any one of claims 24 to 31, wherein the maximum supported baseband bandwidth capability is 5 MHz.

33. The independent initial BWP is The maximum bandwidth of the independent initial BWP does not exceed 20 MHz; 28. The communication device according to claim 26 or 27, comprising at least one of: a maximum bandwidth of the independent initial BWP not exceeding 5 MHz.

34. 28. The communication device according to claim 26 or 27, wherein the second information is transmitted carried by messages MSG1 and / or MSG3.

35. 35. The communication device of claim 34, wherein the message MSG1 carries shared second information and / or the message MSG3 carries shared or specific second information.

36. In a four-step random access process, the first downlink transmission includes an initial transmission and / or a retransmitted MSG 2, the first uplink transmission includes first feedback information and / or an initial transmission or a retransmitted MSG 3, the MSG 3 is scheduled by the MSG 2 or a target DCI, and the first feedback information corresponds to the MSG 4; In a two-step random access process, the first downlink transmission is an initial transmission and / or a retransmitted MSG B, the first uplink transmission includes MSG A and / or second feedback information, and the second feedback information corresponds to the MSG B; 36. The communication device of claim 20, wherein in a small data transmission process, at least one of the following is satisfied: the first uplink transmission includes a PUSCH based on a grant configuration and / or a PUSCH based on random access.

37. A terminal comprising a processor and a memory, the memory storing a program or instructions operable on the processor, the program or instructions implementing the steps of the communication method of any one of claims 1 to 18 when executed by the processor.

38. 20. A readable storage medium having stored thereon a program or instructions that, when executed by a processor, implements the steps of the communication method according to any one of claims 1 to 18.

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