Uplink transmission method and apparatus, and device

Abstract

The present application belongs to the field of communications. Disclosed are an uplink transmission method and apparatus, and a device. The method in the embodiments of the present application comprises: a terminal executing a first uplink transmission, which is scheduled by means of first scheduling information, and has a first feature, wherein the first feature comprises at least one of the following: the first uplink transmission carrying a first demodulation reference signal (DMRS), the first uplink transmission carrying a first preamble, the first uplink transmission carrying a first physical uplink control channel (PUCCH), or the first uplink transmission being indicated by means of a second PUCCH as to whether the terminal skips the transmission.

Description

Uplink transmission methods, apparatus and equipment

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202411706634.9, filed on November 26, 2024, entitled "Uplink Transmission Method, Apparatus and Device", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application belongs to the field of communication technology, and specifically relates to an uplink transmission method, apparatus, and device. Background Technology

[0004] In some scenarios, the uplink skipping (UL skipping) function has been introduced. Specifically, when the network-side device schedules the terminal to perform uplink transmission, it can skip the uplink transmission if the terminal does not have valid uplink data.

[0005] However, the uplink skipping function introduces additional processing complexity to network-side devices because they need to determine whether the terminal has performed an uplink skip. If the terminal has not performed an uplink skip, the network-side device assumes that the terminal skipped uplink scheduling, which will affect the reliability of uplink transmission. Conversely, if the terminal has performed an uplink skip, the network-side device assumes that the terminal has performed uplink transmission. To correctly receive the terminal's uplink transmission, the network-side device will schedule retransmissions from the terminal, thereby increasing the processing complexity of network-side reporting and wasting resources.

[0006] Therefore, how to enhance the reliability of uplink detection on the network side to ensure that the terminal and the network side have a consistent understanding of whether the terminal performs uplink skip is an urgent problem to be solved. Summary of the Invention

[0007] This application provides an uplink transmission method, apparatus, and device, which helps ensure that the network-side device and the terminal have a consistent understanding of whether the terminal performs uplink skipping.

[0008] Firstly, an uplink transmission method is provided, the method comprising:

[0009] The terminal performs a first uplink transmission, which is scheduled by first scheduling information, and the first uplink transmission has a first feature;

[0010] The first feature includes at least one of the following:

[0011] The first uplink transmission carries a first demodulation reference signal DMRS;

[0012] The first uplink transmission carries a first preamble;

[0013] The first uplink transmission carries the first physical uplink control channel (PUCCH);

[0014] The first uplink transmission is indicated by the second PUCCH whether the terminal skips the transmission.

[0015] Secondly, an uplink transmission method is provided, the method comprising:

[0016] The network-side device sends first scheduling information, which is used to schedule a first uplink transmission, wherein the first uplink transmission has a first feature;

[0017] The first feature includes at least one of the following:

[0018] The first uplink transmission carries a first demodulation reference signal DMRS;

[0019] The first uplink transmission carries a first preamble;

[0020] The first uplink transmission carries the first physical uplink control channel (PUCCH);

[0021] The first uplink transmission is indicated by the second PUCCH whether the terminal skips the transmission.

[0022] In some implementations, the first scheduling information is pre-scheduling information.

[0023] In some implementations, the pattern of the first DMRS is indicated by first downlink control information (DCI), wherein the first DCI carries the first scheduling information; or

[0024] The pattern of the first DMRS is determined based on the frequency domain resources corresponding to the first uplink transmission.

[0025] In some implementations, the first DMRS satisfies at least one of the following:

[0026] The first DMRS is repeatedly transmitted in the time domain;

[0027] The first DMRS uses a first mapping density for mapping, and the first mapping density is greater than a first density threshold;

[0028] The first DMRS is mapped to N1 symbols, where N1 is a positive integer;

[0029] The sequence of the first DMRS is generated using N2 symbols, where N2 is a positive integer;

[0030] The sequence length of the first DMRS is greater than or equal to the first threshold;

[0031] The first uplink transmission includes the first DMRS and the first physical uplink shared channel PUSCH, wherein the frequency domain range occupied by the first DMRS is greater than the frequency domain range occupied by the first PUSCH.

[0032] In some implementations, the symbols used by the first DMRS for repeated transmissions are pre-configured by the network-side device, or indicated by the first DCI, which carries the first scheduling information.

[0033] In some implementations, the symbol used by the first DMRS to perform repeated transmissions is the next symbol after the symbol configured by the first DMRS.

[0034] In some implementations, the first DMRS is repeatedly transmitted in the time domain, including:

[0035] Only repeat the first symbol of the first DMRS in the symbols configured in the first DMRS; or

[0036] Repeat all symbols configured in the first DMRS in the first DMRS.

[0037] In some implementations, the frequency domain range occupied by the first DMRS is larger than the frequency domain range occupied by the first PUSCH, including at least one of the following:

[0038] The number of frequency domain units occupied by the first DMRS is K more than the number of frequency domain units occupied by the first PUSCH, where K is a positive integer;

[0039] In each symbol occupied by the first DMRS, the frequency domain range occupied by the first DMRS is greater than the frequency domain range occupied by the first PUSCH.

[0040] On the first symbol occupied by the first DMRS, the frequency domain range occupied by the first DMRS is greater than the frequency domain range occupied by the first PUSCH.

[0041] In some implementations, K is predefined, pre-configured by the network-side device, or indicated by the first DCI.

[0042] In some implementations, the first DMRS is mapped as follows:

[0043] Starting from the first frequency domain start position of the first symbol occupied by the first DMRS, the sequence of the first DMRS is mapped. If there are still elements of the sequence of the first DMRS that have not been mapped after the mapping is completed on the first symbol occupied by the first DMRS, the remaining elements of the sequence of the first DMRS are mapped starting from the second frequency domain start position of X symbols after the first symbol occupied by the first DMRS. The second frequency domain start position is the same as the first frequency domain start position, or the second frequency domain start position has a first frequency domain offset from the first frequency domain start position, where X is a positive integer.

[0044] In some implementations, the sequence of the first DMRS includes a sequence corresponding to a first bandwidth in a reference DMRS sequence, the reference DMRS sequence being generated based on the bandwidth of the terminal's operating frequency band, wherein the first bandwidth is greater than the bandwidth occupied by the first uplink transmission.

[0045] In some implementations, the first uplink transmission includes the first PUCCH and the first PUSCH, wherein the first uplink transmission satisfies at least one of the following:

[0046] The time-domain resources occupied by the first PUCCH include the first symbol or the first L symbols of the first uplink resource, where the first uplink resource is the uplink resource scheduled by the first scheduling information, and L is a positive integer.

[0047] The frequency domain resources occupied by the first PUCCH include all frequency domain units of the symbol where the first uplink resource is located, and the first uplink resource is the uplink resource scheduled by the first scheduling information.

[0048] The time-domain resources occupied by the first PUSCH include the second symbol of the first uplink resource, or the time-domain resources occupied by the first PUSCH include Z symbols starting from the first symbol after the first PUSCH, where the first uplink resource is the uplink resource scheduled by the first scheduling information, and Z is a positive integer.

[0049] The frequency domain resources occupied by the first PUSCH include frequency domain units that are not occupied from the symbols occupied by the first PUCCH.

[0050] The first PUCCH carries a preamble.

[0051] In some implementations, the first PUCCH is also used to indicate at least one of the following:

[0052] Whether a PUSCH was transmitted on the first uplink resource;

[0053] The data type carried in the PUSCH transmitted on the first uplink resource;

[0054] Does the terminal still have data to send?

[0055] Does the terminal still have data to be sent with a priority greater than the first priority threshold?

[0056] The size of the data to be sent by the terminal;

[0057] The priority of the data to be sent by the terminal;

[0058] The latency requirement information for the data to be sent by the terminal.

[0059] In some implementations, the first uplink transmission includes the first preamble and the first PUSCH, wherein the first uplink transmission satisfies at least one of the following:

[0060] The time-domain resources occupied by the first preamble include the first symbol or the first Y symbols of the first uplink resource, where the first uplink resource is the uplink resource scheduled by the first scheduling information, and Y is a positive integer.

[0061] The frequency domain resources occupied by the first preamble include all frequency domain units of the symbol where the first uplink resource is located, and the first uplink resource is the uplink resource scheduled by the first scheduling information.

[0062] The time-domain resources occupied by the first PUSCH include the second symbol of the first uplink resource, or the time-domain resources occupied by the first PUSCH include J symbols starting from the first symbol of the first preamble, where the first uplink resource is the uplink resource scheduled by the first scheduling information, and J is a positive integer.

[0063] The frequency domain position of the first PUSCH includes the unoccupied frequency domain units on the symbol occupied by the first preamble.

[0064] The first preamble may be of at least one of the following types: ZC sequence, M sequence, Gold sequence, primary synchronization signal PSS sequence, and second synchronization signal SSS sequence.

[0065] In some implementations, the first preamble is also used to indicate at least one of the following:

[0066] Whether a PUSCH was transmitted on the first uplink resource;

[0067] The data type carried in the PUSCH transmitted on the first uplink resource;

[0068] Does the terminal still have data to send?

[0069] Does the terminal still have data to be sent with a priority greater than the first priority threshold?

[0070] The size of the data to be sent by the terminal;

[0071] The priority of the data to be sent by the terminal;

[0072] The latency requirement information for the data to be sent by the terminal.

[0073] In some implementations, the time domain length of the first uplink resource is greater than or equal to P, and / or the frequency domain length of the first uplink resource is greater than or equal to Q, where P is a positive integer, Q is a positive integer, and the first uplink resource is the uplink resource scheduled by the first scheduling information.

[0074] In some implementations, the time-domain location of the second PUCCH resource and the time-domain location of the first uplink resource have a first interval, and the first uplink resource is the uplink resource scheduled by the first scheduling information.

[0075] In some implementations, the second PUCCH resource is indicated by the first scheduling information or is an uplink resource pre-configured by the network-side device.

[0076] Thirdly, a wireless communication device is provided, comprising:

[0077] A sending module is used to perform a first uplink transmission, the first uplink transmission being scheduled by first scheduling information, and the first uplink transmission having a first feature;

[0078] The first feature includes at least one of the following:

[0079] The first uplink transmission carries a first demodulation reference signal DMRS;

[0080] The first uplink transmission carries a first preamble;

[0081] The first uplink transmission carries the first physical uplink control channel (PUCCH);

[0082] The first uplink transmission is indicated by the second PUCCH whether the terminal skips the transmission.

[0083] Fourthly, a wireless communication device is provided, comprising:

[0084] A sending module is used to send first scheduling information, the first scheduling information being used to schedule a first uplink transmission, wherein the first uplink transmission has a first feature;

[0085] The first feature includes at least one of the following:

[0086] The first uplink transmission carries a first demodulation reference signal DMRS;

[0087] The first uplink transmission carries a first preamble;

[0088] The first uplink transmission carries the first physical uplink control channel (PUCCH);

[0089] The first uplink transmission is indicated by the second PUCCH whether the terminal skips the transmission.

[0090] Fifthly, a wireless communication device is provided, the device being configured to perform the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0091] In a sixth aspect, a terminal is provided, the terminal including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0092] In a seventh aspect, a terminal is provided, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method as described in the first aspect.

[0093] Eighthly, a network-side device is provided, the network-side device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the second aspect.

[0094] In a ninth aspect, a network-side device is provided, including a processor and a communication interface, wherein the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement the method as described in the second aspect.

[0095] In a tenth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect.

[0096] Eleventhly, a wireless communication system is provided, comprising: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the method as described in the first aspect, and the network-side device can be used to perform the steps of the method as described in the second aspect.

[0097] In a twelfth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run programs or instructions to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0098] In a thirteenth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the method as described in the first aspect, or to implement the steps of the method as described in the second aspect.

[0099] In this embodiment, the terminal can perform a first uplink transmission with a first feature. In this way, the network-side device can improve the reliability and accuracy of pre-scheduling detection by using the first feature corresponding to the first uplink transmission. This ensures that the network-side device and the terminal have a consistent understanding of whether the terminal has performed uplink skipping, reduces the probability of false alarms on the network side, and avoids the network-side device from thinking that the terminal has performed uplink transmission when the terminal skips uplink transmission, thereby scheduling the terminal's retransmission and wasting resources. Attached Figure Description

[0100] Figure 1 is a schematic diagram of a communication system architecture provided in an embodiment of this application.

[0101] Figure 2 is a schematic interactive diagram of an uplink transmission method provided in an embodiment of this application.

[0102] Figure 3 is a schematic diagram of a first DMRS provided in an embodiment of this application.

[0103] Figure 4 is a schematic diagram of another first DMRS provided in an embodiment of this application.

[0104] Figure 5 is a schematic diagram of another first DMRS provided in the embodiments of this application.

[0105] Figure 6 is a schematic diagram of the composition of a first uplink transmission provided in an embodiment of this application.

[0106] Figure 7 is a schematic diagram of another first uplink transmission provided in an embodiment of this application.

[0107] Figure 8 is a schematic diagram of another first uplink transmission provided in an embodiment of this application.

[0108] Figure 9 is a schematic diagram of the first uplink transmission and the second PUCCH transmission scheduled by the first DCI according to an embodiment of this application.

[0109] Figure 10 is a schematic block diagram of a wireless communication device provided according to an embodiment of this application.

[0110] Figure 11 is a schematic block diagram of a wireless communication device according to an embodiment of this application.

[0111] Figure 12 is a schematic block diagram of a communication device provided according to an embodiment of this application.

[0112] Figure 13 is a schematic diagram of the hardware structure of a terminal according to an embodiment of this application.

[0113] Figure 14 is a schematic block diagram of a network-side device provided according to an embodiment of this application. Detailed Implementation

[0114] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0115] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. In addition, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three scenarios. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0116] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as one in which the sender explicitly informs the receiver of specific information, the operation to be performed, or the requested result, etc., in the instruction sent. An indirect instruction can be understood as one in which the receiver determines the corresponding information based on the instruction sent by the sender, or makes a judgment and determines the operation to be performed or the requested result, etc., based on the judgment result.

[0117] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in 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), or other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0118] Figure 1 shows a block diagram of a wireless communication system applicable to an embodiment of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipboard equipment, pedestrian user equipment (PUE), smart home (home devices with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM, or self-service machine, etc. Wearable devices include: smartwatches, smart bracelets, smart earphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among these, in-vehicle devices can also be referred to as in-vehicle terminals, in-vehicle controllers, in-vehicle modules, in-vehicle components, in-vehicle chips, or in-vehicle units, etc. It should be noted that the specific type of terminal 11 is not limited in the embodiments of this application.

[0119] In the embodiments of this application, the terminal may also be referred to as user equipment (UE), terminal equipment, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, wireless communication equipment, user agent, or user device, etc.

[0120] Network-side equipment 12 may include access network equipment or core network equipment. Access network equipment may also be referred to as Radio Access Network (RAN) equipment, radio access network function, or radio access network unit. Access network equipment may include base stations, wireless local area network (WLAN) access points (APs), or wireless Fidelity (WiFi) nodes, etc. The term "base station" can be referred to as Node B (NB), Evolved Node B (eNB), Next Generation Node B (gNB), New Radio Node B (NR Node B), Access Point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B, Transmit / Receive Point (TRP), or any other suitable term in the relevant field, as long as the same technical effect is achieved. The term "base station" is not limited to any specific technical terminology. It should be noted that this application embodiment only uses a base station in an NR system as an example for description and does not limit the specific type of base station.

[0121] Core network equipment, also known as core network nodes, core network functions, or core network elements, includes, but is not limited to, at least one of the following: Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (or L-NEF), and Binding Support. The core network functions include: BSF (Block Network Function), Application Function (AF), Location Management Function (LMF), Gateway Mobile Location Centre (GMLC), and Network Data Analytics Function (NWDAF). It should be noted that this application embodiment only uses core network equipment in the NR system as an example and does not limit the specific type of core network equipment. If the name of the core network equipment mentioned in this application embodiment changes in subsequent protocol versions (e.g., 6G), it will still be within the scope of protection of this application.

[0122] Optionally, the core network equipment can be implemented by one or more functional modules in a single device, or by multiple devices working together; this application does not specifically limit this. It is understood that the aforementioned functional modules can be network elements in hardware devices, software functional modules running on dedicated hardware, or virtualized functional modules instantiated on a platform (e.g., a cloud platform).

[0123] To facilitate understanding of the embodiments of this application, the uplink pre-scheduling related to this application will be described.

[0124] To reduce transmission latency, network-side devices can send pre-scheduling information to terminals. This pre-scheduling information can pre-schedule uplink resources for the terminals. For example, after the terminals stop transmitting uplink data, they can retain the pre-scheduled uplink resources for a certain period of time. This way, when the terminals have frequent small packet transmission needs, they can avoid the latency of re-applying for uplink resources and improve the efficiency of frequent small packet transmission. Alternatively, when the base network-side device has downlink data scheduling, the network-side device can actively perform uplink pre-scheduling for the terminals (in this case, the network-side device believes that there is downlink service, so the terminals will definitely have uplink service, such as feedback response information).

[0125] To facilitate understanding of the embodiments of this application, the uplink skipping (UL skipping) related to this application will be described.

[0126] Uplink skipping refers to the situation where, when a network-side device schedules a terminal for uplink transmission, if the terminal has no valid uplink data, it does not generate a Media Access Control Protocol Data Unit (MAC PDU) or send a Physical Uplink Shared Channel (PUSCH). However, if this PUSCH conflicts with a control channel carrying Uplink Control Information (UCI), the terminal must generate a MAC PDU and send a PUSCH that has multiplexed the uplink control information.

[0127] In some scenarios, the terminal's Media Access Control (MAC) entity may not generate a MAC PDU for a Hybrid Automatic Repeat reQuest (HARQ) entity when the following conditions are met:

[0128] 1. The MAC entity is configured to dynamically send the uplink skip parameter (skipUplinkTxDynamic), and the value of this parameter is set to True. The HARQ entity associated with the uplink grant (UL grant) is either the Cell Radio Network Temporary Identity (C-RNTI) or a configured uplink grant.

[0129] 2. Without UCI multiplexing, this PUSCH will be reused;

[0130] 3. Failed to report non-periodic Channel State Information (CSI) for this PUSCH transmission request as specified in the protocol;

[0131] 4. The MAC PDU includes the MAC Service Data Unit (SDU);

[0132] 5. The MAC PDU contains only periodic Buffer Status Reports (BSRs) and has no data available for any Logical Channel Group (LCG), or the MAC PDU contains only padding BSRs.

[0133] The aforementioned uplink skip function only applies to dynamically scheduled PUSCHs. For PUSCHs scheduled with Configured Grant (CG), i.e. CG PUSCHs, no additional higher-level parameter configuration is required. However, if the terminal does not have any data to send for that CG, the terminal will not generate data.

[0134] In summary, if the terminal has no data to send for a Dynamic Grant (DG) and the above conditions are met, the uplink skip parameter is enabled, and the terminal does not generate data. Otherwise, the terminal needs to generate data, which may be padding bits. If the terminal has no data to send for a Dynamic Grant (DG), it will not generate data.

[0135] The control channel primarily carries various control information, such as resource allocation information, power control information, and coding scheme adjustments, for the control and management of the wireless link. Therefore, the control channel typically employs stronger coding techniques and lower modulation orders to improve reliability, such as using Quadrature Phase Shift Keying (QPSK) modulation. Consequently, compared to the data channel, the control channel offers higher reliability.

[0136] However, the uplink skipping function introduces additional processing complexity to network-side devices, as they need to determine whether the terminal has performed an uplink skip. If the terminal has not performed an uplink skip, the network-side device assumes the terminal skipped uplink scheduling, affecting the reliability of uplink transmission. Conversely, if the terminal has performed an uplink skip, the network-side device assumes the terminal has performed uplink transmission, and will schedule retransmissions to correctly receive the terminal's uplink transmission, increasing the processing complexity of network-side reporting and wasting resources. Therefore, enhancing the reliability of network-side uplink detection to ensure consistency between the terminal and the network side in understanding whether the terminal has performed an uplink skip is a problem that urgently needs to be solved.

[0137] The uplink transmission method provided in this application will be described in detail below with reference to the accompanying drawings, through some embodiments and application scenarios.

[0138] Figure 2 is a schematic diagram of an uplink transmission method provided in an embodiment of this application. As shown in Figure 2, the method includes at least some of the following:

[0139] S210, the network-side device sends the first scheduling information to the terminal;

[0140] S220, the terminal performs a first uplink transmission, the first uplink transmission having a first feature.

[0141] In some embodiments, the first scheduling information may be pre-scheduling information, wherein the pre-scheduling information may be terminal pre-scheduled uplink resources.

[0142] For example, pre-scheduled information can be proactively sent to the terminal by the network-side device; in other words, pre-scheduled information is not sent based on a request from the terminal.

[0143] In some embodiments, the first scheduling information may be used to indicate a first uplink resource, which may be considered a pre-scheduled uplink resource.

[0144] In some embodiments, the first uplink transmission is sent based on the first scheduling information. For example, the first uplink transmission may be transmitted through the first uplink resource, which may also be called a pre-scheduled transmission.

[0145] Therefore, in this embodiment, the terminal performs a first uplink transmission with a first feature on the pre-scheduled uplink resources. In this way, the network-side device can improve the reliability and accuracy of pre-scheduled detection through the first feature corresponding to the first uplink transmission, ensuring that the network-side device and the terminal have a consistent understanding of whether the terminal has performed uplink skipping, reducing the probability of false alarms on the network side, and avoiding the network-side device from thinking that the terminal has performed uplink transmission when the terminal skips uplink transmission, thereby scheduling the terminal's retransmission and causing a waste of resources.

[0146] In some embodiments, the first feature includes at least one of the following:

[0147] The first uplink transmission carries a first demodulation reference signal (DMRS), or in other words, the first uplink transmission includes a first DMRS;

[0148] The first uplink transmission carries a first preamble, or in other words, the first uplink transmission includes a first preamble;

[0149] The first uplink transmission carries a first physical uplink control channel (PUCCH), or in other words, the first uplink transmission includes a first PUCCH;

[0150] The first uplink transmission is indicated by the second PUCCH whether the terminal skips the transmission.

[0151] The features of the first uplink transmission will be described below with reference to specific embodiments.

[0152] Example 1: The first uplink transmission includes a first DMRS.

[0153] Therefore, in this embodiment, when the first uplink transmission includes the first DMRS, the network-side device can determine whether the terminal has performed uplink transmission on the pre-scheduled uplink resources through DMRS sequence detection. The reliability of DMRS sequence detection requires a certain length or a certain number of sequences to be guaranteed. In this embodiment, the transmission of long-sequence DMRS can be achieved by designing the sequence length and resource usage of the first DMRS, which is beneficial to improving the reliability of DMRS sequence detection of the network-side device and avoiding inconsistencies between the terminal and the network-side device in understanding whether the terminal skipped the uplink transmission due to interference or other reasons, thereby avoiding unnecessary retransmission scheduling and resource waste.

[0154] In some embodiments, the first DMRS is different from the DMRS used for non-pre-scheduled uplink transmissions, which are also referred to as normal scheduling or traditional scheduling. The non-pre-scheduled uplink transmissions can be uplink transmissions scheduled by the network-side device based on terminal requests.

[0155] For example, network-side devices can directly or indirectly indicate the DMRS configuration used for pre-scheduled transmissions, which is different from the DMRS configuration used for non-pre-scheduled transmissions. By setting a dedicated DMRS configuration for pre-scheduled transmissions, the reliability of pre-scheduled detection can be improved. Network-side devices can have a higher confidence that the terminal skipped the pre-scheduled transmission when they do not correctly receive an uplink transmission using this DMRS configuration.

[0156] In some embodiments, the type or pattern of the first DMRS is indicated by first downlink control information (DCI), which may be a DCI carrying first scheduling information.

[0157] That is, when pre-scheduling uplink resources, the network-side device can explicitly indicate the type or pattern of the first DMRS carried in the pre-scheduled transmission using the uplink resources.

[0158] In other embodiments, the type or pattern of the first DMRS is implicitly indicated by the first DCI.

[0159] For example, the first DCI can indicate the scheduling mode of uplink transmission on the first uplink resource, such as a pre-scheduled mode or a non-pre-scheduled mode. Different scheduling modes can correspond to the type or pattern of the corresponding DMRS. When the terminal performs the first uplink transmission using the first uplink resource, it can determine the corresponding type or pattern of DMRS according to the scheduling mode indicated by the first DCI, and then carry the corresponding type or pattern of DMRS in the first uplink transmission.

[0160] In some embodiments, the first DCI may indicate the DMRS configuration corresponding to the associated scheduling, such as including but not limited to at least one of the following: the pattern or type of the DMRS, the symbols occupied by the DMRS, the frequency domain density, the maximum time domain length of the DMRS, single symbol or multiple symbols, etc.

[0161] In some embodiments, the first DCI may include the type of DMRS associated with the first DCI. For example, the first DCI may include 1 bit of indication information. The 1 bit of indication information is 1 to indicate that the type of DMRS associated with the first DCI is a DMRS corresponding to a pre-scheduled transmission, or that the DMRS configuration indicated by the first DCI is a pre-scheduled DMRS configuration. The 1 bit of indication information is 0 to indicate that the type of DMRS associated with the first DCI is a DMRS corresponding to a non-pre-scheduled transmission, or that the DMRS configuration indicated by the first DCI is a non-pre-scheduled DMRS configuration.

[0162] In some embodiments, the pattern or type of the first DMRS can also be determined based on the frequency domain resources corresponding to the first uplink transmission (i.e., the frequency domain resources corresponding to the first uplink resources). For example, the frequency domain resources corresponding to the first uplink transmission include at least one of the bandwidth occupied by the first uplink transmission, the starting resource block (RB) occupied by the first uplink transmission, the ending RB occupied by the first uplink transmission, and the center RB occupied by the first uplink transmission. That is, the pattern or type of the first DMRS can be determined based on the bandwidth of the first uplink resources and at least one of the starting RB, ending RB, and center RB.

[0163] In some embodiments of this application, the first uplink transmission includes a first DMRS, wherein the first DMRS satisfies at least one of the following:

[0164] The first DMRS is repeatedly transmitted in the time domain;

[0165] The first DMRS uses a first mapping density for mapping, and the first mapping density is greater than a first density threshold;

[0166] The first DMRS is mapped to N1 symbols, where N1 is a positive integer;

[0167] The sequence of the first DMRS is generated using N2 symbols, where N2 is a positive integer;

[0168] The sequence length of the first DMRS is greater than or equal to the first threshold;

[0169] The first uplink transmission includes the first DMRS and the first physical uplink shared channel PUSCH, wherein the frequency domain range occupied by the first DMRS is greater than the frequency domain range occupied by the first PUSCH.

[0170] In some embodiments, the terminal repeatedly transmits the first DMRS in the time domain, for example, by repeatedly transmitting all symbols of the first DMRS, or by repeatedly transmitting some symbols of the first DMRS. This allows the DMRS in pre-scheduled transmission to be sent over more symbols compared to the DMRS corresponding to conventional scheduling, thus achieving a longer DMRS sequence. This improves the reliability of network-side equipment in determining whether the terminal skips uplink transmissions by detecting DMRS. For example, the terminal can repeatedly transmit the DMRS on the first symbol over the two symbols following the first symbol of the first DMRS. As another example, the terminal can always transmit a two-symbol DMRS in pre-scheduled transmission.

[0171] In some embodiments, the terminal can determine the sequence of the first DMRS based on the number n of frequency domain units on multiple symbols, which is beneficial for implementing long-sequence DMRS. For example, n = n' * N3, where n' is the number of frequency domain units corresponding to a certain bandwidth, and N3 is the number of symbols occupied by the first DMRS or a portion of the symbols occupied by the first DMRS. The certain bandwidth can be the bandwidth of the terminal's operating frequency band, the bandwidth of the terminal's BWP, or the bandwidth of the first uplink resource.

[0172] Optional, N3 = N2.

[0173] In some embodiments, the symbols used by the first DMRS to perform repeated transmissions are predefined by the protocol, preconfigured by the network-side device, or indicated by the first DCI, which carries the first scheduling information.

[0174] In some embodiments, the symbols used by the first DMRS to perform repeated transmissions are the next symbols after the DMRS symbols configured by the network-side device. For example, if the DMRS symbols configured by the network-side device include symbols 2, 5, and 9, then the symbols used by the first DMRS to perform repeated transmissions may include symbols 3, 6, and 10. In this case, the symbols used by the first DMRS include symbols 2, 3, 5, 6, 9, and 10. As a specific example, as shown in Figure 3(a), if the first DMRS is configured with symbol 2, then the sequence of the first DMRS can be transmitted in symbol 2, and repeated transmission of the sequence of the first DMRS can be performed on symbol 3. In Figure 3, a format on the horizontal axis can represent a symbol, and a cell on the vertical axis can represent a resource element (RE).

[0175] In some embodiments, the symbols used by the first DMRS to perform repeated transmissions are spaced Y symbols apart from the DMRS symbols configured by the network-side device, for example, Y ≥ 1. As shown in Figure 3(b), if the DMRS symbols configured by the network-side device include symbol 2, then the terminal can perform repeated transmissions of the first DMRS on symbol 4, i.e., at a interval of 1 symbol.

[0176] In some embodiments, the first DMRS is repeatedly transmitted in the time domain, including:

[0177] The first DMRS is repeated only in the first symbol of the DMRS symbols configured on the network-side device; that is, the sequence of the first DMRS transmitted is repeated only in the first symbol of the DMRS symbols configured on the network-side device.

[0178] Repeat all symbols of the first DMRS in the DMRS symbols configured on the network-side device, that is, repeat the sequence of all symbols of the first DMRS in the DMRS symbols configured on the network-side device.

[0179] For example, as shown in Figure 3(c), if the DMRS configured on the network side device includes symbols 2 and 9, then only the sequence on symbol 2 can be repeated, for example, the sequence on symbol 2 can be repeated on the next symbol or on a symbol at a certain interval.

[0180] Optionally, the DMRS symbol configured by the network-side device can be a symbol configured by the first DCI for transmitting the first DMRS. The DMRS symbol configured by the network-side device can be a symbol used for a single transmission of the first DMRS.

[0181] In other embodiments, the first DMRS may be repeatedly transmitted in the time domain, or it may include repeating only W specific symbols from the DMRS symbols configured in the network-side device. Optionally, the specific W symbols may be the first W symbols or the last W symbols, where W is a positive integer. Optionally, the positions of the specific W symbols may be predefined, or configured by the network-side device, for example, through the first DCI.

[0182] In some embodiments, the first DMRS uses a first mapping density for mapping, which is greater than a first density threshold. The first density threshold can be the maximum mapping density corresponding to conventional scheduling, such as 1 / 2.

[0183] That is, the overhead of the first DMRS in this embodiment is greater than that of the DMRS used in traditional scheduling, thereby ensuring that the first DMRS maps the DMRS sequence on more resource elements (REs) to achieve a longer DMRS sequence, thereby improving the reliability of the network-side device in determining whether the terminal skips the uplink transmission through DMRS detection.

[0184] Optionally, the first density threshold can be predefined, or configured by the network-side device, for example, via the first DCI.

[0185] Optionally, the first mapping density can be predefined, or configured by the network-side device, for example, via the first DCI.

[0186] Optionally, the first mapping density can be 2 / 3 or 3 / 4, that is, the terminal can map 2 DMRS on every 3 REs, as shown in Figure 4, or it can map 3 DMRS on every 4 REs, thereby realizing long sequence DMRS.

[0187] Optionally, when the first mapping density is 2 / 3, the RE index k mapped by the first DMRS can be expressed as k = 3n + k' + offset value, where n represents the RE index, n = 0, 1, ..., k' = 0, 1.

[0188] Optionally, when the first mapping density is 3 / 4, the RE index k mapped by the first DMRS can be expressed as k = 4n + k' + offset value, where n represents the RE index, n = 0, 1, ..., and k' = 0, 1, 2.

[0189] In some embodiments, the first DMRS occupies all REs on the symbols configured by the first DMRS within the frequency domain range (e.g., bandwidth) of the first uplink resource. Therefore, the first DMRS provided in this application embodiment can map DMRS sequences on more REs to achieve longer DMRS sequences, thereby improving the reliability of network-side devices in determining whether a terminal skips uplink transmission through DMRS detection.

[0190] In some embodiments, the first DMRS is mapped to N1 symbols, which may be consecutive symbols, or partially consecutive symbols with the rest being discontinuous, or all discontinuous symbols.

[0191] Optional, N1 is greater than 2.

[0192] Optionally, the starting position of the first symbol among the N1 symbols can be the same as the starting position of the first symbol mapped by the DMRS corresponding to traditional scheduling, or they can be different.

[0193] In some embodiments, different parts of the same sequence are carried on different symbols occupied by the first DMRS.

[0194] In some embodiments, the first DMRS is generated according to N2 symbols, wherein the DMRS on the N2 symbols is not a repeated DMRS, but rather the same sequence is divided into N2 segments, and N2 segments are extracted from the same sequence. Each of the N2 symbols carries one of these segments, which is beneficial for realizing the transmission of long sequence DMRS.

[0195] Optional, N1 = N2.

[0196] In some embodiments, the sequence length of the first DMRS is greater than or equal to a first threshold. By setting the sequence length of the first DMRS to be greater than or equal to the first threshold, long-sequence DMRS can be implemented, thereby improving the reliability of the network-side device in detecting and determining whether the terminal skips uplink transmission through DMRS.

[0197] Optionally, the first threshold can be predefined or configured by the network-side device, for example, through the first DCI. Optionally, the first threshold is related to the scheduling method of the network-side device. For example, when the network-side device indicates pre-scheduling information to the terminal, the first threshold can be configured. In this way, the terminal can carry DMRS with a sequence length not less than the first threshold in the pre-scheduling transmission, thereby enabling long-sequence DMRS transmission and improving the reliability of the network-side device in determining whether the terminal skips uplink transmission through DMRS detection.

[0198] In some embodiments, the sequence length r(n) of the first DMRS can be determined based on the number of subcarriers on N4 symbols, where N4 is greater than 1. That is, the sequence length of the first DMRS can be determined based on the number of subcarriers on multiple symbols, which is beneficial for implementing long-sequence DMRS, thereby improving the reliability of network-side equipment in detecting whether a terminal skips uplink transmission through DMRS detection. For example, in, The number of subcarriers on a symbol is represented by u, the number of base sequence groups, v, the number of base sequences within a group, α, the cyclic shift value, δ, the intermediate value used to determine the sequence length, and N4, which is the number of symbols occupied by the first DMRS or the number of partial symbols occupied by the first DMRS.

[0199] Optional, N4 = N2.

[0200] In some embodiments, the first DMRS sequence can be a single-symbol DMRS or a multi-symbol DMRS. For example, the terminal can determine whether the first DMRS uses a single-symbol or multi-symbol DMRS based on the sequence length of the first DMRS and the frequency domain range of the first PUSCH. For example, when the frequency domain range of the first PUSCH is large (e.g., greater than a certain threshold), the first DMRS can use a single-symbol DMRS; otherwise, a double-symbol DMRS is used to ensure the sequence length. As another example, when the sequence length of the first DMRS is large (e.g., greater than a certain threshold), the first DMRS can use a single-symbol DMRS; otherwise, a double-symbol DMRS is used to ensure the sequence length.

[0201] In some embodiments, the first uplink transmission includes the first DMRS and the first PUSCH, wherein the frequency domain range (e.g., bandwidth, or number of frequency domain units occupied by the first DMRS) is greater than the frequency domain range (e.g., bandwidth, or number of frequency domain units occupied by the first PUSCH). That is, the first DMRS occupies a larger bandwidth than the first PUSCH, enabling long-sequence DMRS, thereby improving the reliability of network-side devices in detecting whether a terminal skips uplink transmission through DMRS detection.

[0202] In some embodiments, the bandwidth of the first DMRS may be indicated by the first DCI, or the first DCI may indicate the additional bandwidth of the first DMRS compared to the first PUSCH; or the bandwidth of the first DMRS or the additional bandwidth of the first DMRS compared to the first PUSCH may be predefined, or pre-configured by the network-side device.

[0203] In some embodiments, the frequency domain range occupied by the first DMRS is greater than the frequency domain range occupied by the first PUSCH, including at least one of the following:

[0204] The number of frequency domain units occupied by the first DMRS is K more than the number of frequency domain units occupied by the first PUSCH, where K is a positive integer;

[0205] In each symbol occupied by the first DMRS, the frequency domain range occupied by the first DMRS is greater than the frequency domain range of the first PUSCH.

[0206] In the first symbol occupied by the first DMRS, the frequency domain range occupied by the first DMRS is larger than the frequency domain range of the first PUSCH. In this case, the network-side device can detect whether the terminal skips uplink transmission based only on the DMRS on the first symbol.

[0207] In some embodiments, the frequency domain range occupied by the first DMRS being greater than the frequency domain range of the first PUSCH in each symbol occupied by the first DMRS may include:

[0208] On each symbol occupied by the first DMRS, the number of frequency domain units occupied by the first DMRS is greater than the number of frequency domain units occupied by the first PUSCH.

[0209] In some embodiments, the frequency domain range occupied by the first DMRS being greater than the frequency domain range of the first PUSCH on the first symbol may include:

[0210] On the first symbol occupied by the first DMRS, the number of frequency domain units occupied by the first DMRS is greater than the number of frequency domain units occupied by the first PUSCH.

[0211] For example, if the first DMRS occupies S symbols, and on the i-th symbol of the first DMRS, the first DMRS occupies Ai frequency domain units, where i = 1, 2, ..., S, and on the S symbols, the first PUSCH occupies B frequency domain units in each of them, then:

[0212] In each symbol occupied by the first DMRS, the number of frequency domain units occupied by the first DMRS is greater than the number of frequency domain units occupied by the first PUSCH, which can be expressed as: Ai is greater than B, where i = 1, 2, ... S.

[0213] In the first symbol occupied by the first DMRS, the number of frequency domain units occupied by the first DMRS is greater than the number of frequency domain units occupied by the first PUSCH, which can be interpreted as: A1 is greater than B.

[0214] For example, as shown in Figure 5, the first DMRS occupies a certain number of REs more than the first PUSCH, which is beneficial for realizing long-sequence DMRS, while reserving more resources for the transmission of the first PUSCH.

[0215] In some embodiments, K may be predefined, pre-configured by the network-side device, or indicated by the first DCI.

[0216] In some embodiments, K may be determined based on the entire frequency domain range occupied by the first DMRS and the entire frequency domain range occupied by the first PUSCH, or it may be determined based on the single-sided frequency domain range occupied by the first DMRS and the single-sided frequency domain range occupied by the first PUSCH. The single-sided frequency domain range occupied by the first DMRS may be the frequency domain range from the lowest frequency domain unit of the first DMRS to the center frequency of the first DMRS, or it may be the frequency domain range from the center frequency of the first DMRS to the highest frequency domain unit of the first DMRS. Similarly, the single-sided frequency domain range occupied by the first PUSCH may be the frequency domain range from the lowest frequency domain unit of the first PUSCH to the center frequency of the first PUSCH, or it may be the frequency domain range from the center frequency of the first PUSCH to the highest frequency domain unit of the first PUSCH.

[0217] Optionally, the center frequency of the first DMRS is the same as the center frequency of the first PUSCH. That is, the center frequencies of the first DMRS and the first PUSCH are aligned.

[0218] Optionally, the lowest frequency domain unit of the first DMRS is the same as the lowest frequency domain unit of the first PUSCH. That is, the lowest frequency domain units of the first DMRS and the first PUSCH are aligned.

[0219] In some embodiments, the first DMRS is mapped in the following manner, which helps to ensure that the first DMRS has a sufficiently long sequence length:

[0220] Starting from the first frequency domain start position of the first symbol occupied by the first DMRS, the sequence of the first DMRS is mapped. If, after mapping is completed on the first symbol occupied by the first DMRS, there are still elements of the first DMRS sequence that have not been mapped, the remaining elements of the first DMRS sequence are mapped starting from the second frequency domain start position of X symbols after the first symbol occupied by the first DMRS. The second frequency domain start position is the same as the first frequency domain start position, or the second frequency domain start position has a first frequency domain offset from the first frequency domain start position, where X is a positive integer. Optionally, the X symbols can be X symbols consecutive to the first symbol, or the X symbols can be spaced F symbols apart from the first symbol; this application does not limit this, where F is a positive integer. Optionally, the X symbols can be consecutive or non-consecutive; this application does not limit this.

[0221] For example, as shown in Figure 6, the terminal can map the sequence of the first DMRS on the first symbol (i.e. symbol 2) occupied by the first DMRS. If all elements of the sequence of the first DMRS are not mapped on symbol 2, the terminal can map the remaining elements of the sequence of the first DMRS on the next symbol until all elements of the sequence of the first DMRS are mapped.

[0222] In some embodiments, the sequence of the first DMRS includes part or all of the sequence in the reference DMRS sequence, wherein the reference DMRS sequence is generated based on the bandwidth of the terminal's operating frequency band. For example, the sequence of the first DMRS includes the sequence corresponding to the first bandwidth in the reference DMRS sequence, wherein the first bandwidth is greater than the bandwidth occupied by the first uplink transmission. That is, the sequence of the first DMRS not only includes a part of the sequence occupied by the first uplink transmission, but may also include sequences outside the bandwidth occupied by the first uplink transmission. In this way, compared to mapping a part of the sequence occupied by the first uplink transmission, the sequence mapping method provided by the embodiments of this application can map a longer sequence, thereby realizing the transmission of long-sequence DMRS.

[0223] Optionally, in this embodiment, after all elements of the first DMRS sequence have been mapped, the first DMRS sequence is mapped to a total of N1 symbols.

[0224] In some embodiments, the base sequence of the first DMRS is different from the base sequence of the DMRS corresponding to conventional scheduling. For example, the base sequence of the first DMRS can be a base sequence with better autocorrelation or a longer base sequence. Using a base sequence with better autocorrelation is beneficial to reduce interference from DMRS detection and improve the reliability of the network-side device in determining whether the terminal skips uplink transmission through DMRS detection. Using a longer base sequence can also improve the reliability of the network-side device in determining whether the terminal skips uplink transmission through DMRS detection.

[0225] In some embodiments of this application, the method 200 further includes:

[0226] The terminal determines whether to allow the terminal to perform uplink transmission skipping based on the first DCI.

[0227] For example, the terminal can determine whether to allow the terminal to perform uplink transmission skipping based on the type or pattern of the DMRS indicated by the first DCI.

[0228] Optionally, if the first DCI indicates the type or pattern of DMRS used for pre-scheduled transmission, the terminal determines that it is allowed to perform uplink transmission skipping. Alternatively, if the first DCI indicates the type or pattern of DMRS used for conventional scheduling, the terminal determines that it is not allowed to perform uplink transmission skipping. This ensures the reliability of the network-side device's detection of whether the terminal skips uplink transmissions.

[0229] Example 2: The first uplink transmission includes a first PUCCH.

[0230] Therefore, in this embodiment of the application, the terminal carries the first PUCCH in the first uplink transmission. This can improve the inspection reliability of the pre-scheduled transmission by utilizing the high detection reliability of the PUCCH, ensuring that the terminal and the network-side device have a consistent understanding of whether the terminal skips the uplink transmission, thereby avoiding unnecessary retransmission scheduling and resource waste.

[0231] In some embodiments of this application, the first uplink transmission includes the first PUCCH and the first PUSCH, wherein the first uplink transmission satisfies at least one of the following:

[0232] The time-domain resources occupied by the first PUCCH include the first symbol or the first L symbols of the first uplink resource, where the first uplink resource is the uplink resource scheduled by the first scheduling information, and L is a positive integer.

[0233] The frequency domain resources occupied by the first PUCCH include all frequency domain units of the symbol where the first uplink resource is located, and the first uplink resource is the uplink resource scheduled by the first scheduling information.

[0234] The time-domain resources occupied by the first PUSCH include the second symbol of the first uplink resource, or the time-domain resources occupied by the first PUSCH include Z symbols starting from the first symbol after the first PUSCH, where the first uplink resource is the uplink resource scheduled by the first scheduling information, and Z is a positive integer.

[0235] The frequency domain resources occupied by the first PUSCH include frequency domain units that are not occupied on the symbol occupied by the first PUCCH. For example, the frequency domain resources occupied by the first PUSCH start from the frequency domain units (e.g., the lowest frequency domain unit or the highest frequency domain unit) that are not occupied on the symbol occupied by the first PUCCH.

[0236] The first PUCCH carries a preamble.

[0237] In some embodiments, the time-domain resources occupied by the first PUCCH include the first symbol or the first L symbols of the first uplink resource. That is, the first PUCCH is located at the beginning of the first uplink resource. By placing the first PUCCH, which has high detection reliability, at the beginning of the first uplink resource, it is beneficial to improve the reliability of the network-side device in determining whether the terminal skips the uplink transmission through PUCCH detection. Figure 7 shows a schematic diagram of the composition of a first uplink transmission provided by an embodiment of this application. As shown in Figure 7, the first uplink transmission may include a first PUCCH and a first PUSCH. The bandwidth of the first PUCCH and the first PUSCH may be the same, and the first PUCCH may be located at the beginning of the first uplink transmission.

[0238] In some embodiments, the frequency domain resources occupied by the first PUCCH include all frequency domain units of the symbol containing the first uplink resource. By designing the frequency domain range of the first PUCCH to occupy all frequency domain units of the symbol containing the first uplink resource, it can be ensured that the first PUCCH occupies sufficient frequency domain units, which is beneficial to improving the reliability of network-side devices in detecting and determining whether a terminal skips uplink transmission through PUCCH.

[0239] In some embodiments, a preamble is carried in the first PUCCH. This is because the detection performance of the preamble is better. Therefore, the terminal can send the preamble as the first PUCCH, which helps to improve the detection performance of the PUCCH and thus improves the reliability of the network-side device in determining whether the terminal skips the uplink transmission through PUCCH detection.

[0240] In some embodiments, the first PUCCH carries a preamble, and the first PUCCH adopts PUCCH format 0.

[0241] In some embodiments, the first PUCCH is also used to indicate at least one of the following:

[0242] Whether PUSCH was transmitted on the first uplink resource, or whether PUSCH transmission was skipped;

[0243] The data type carried in the PUSCH transmitted on the first uplink resource, such as padding data or service data;

[0244] Does the terminal still have data to send?

[0245] Does the terminal still have data to be sent with a priority greater than the first priority threshold?

[0246] The size of the data to be sent by the terminal;

[0247] The priority of the data to be sent by the terminal;

[0248] The latency requirement information of the terminal's data to be sent, such as packet delay budget (PDB).

[0249] That is, when the first PUCCH is carried in the first uplink transmission, the terminal can also use the first PUCCH to indicate other information, thereby assisting the network-side device in determining whether the terminal has skipped the uplink transmission, and also assisting the network-side device in subsequent scheduling of the terminal.

[0250] In some embodiments, the first PUCCH includes a first UCI, which is used to indicate whether a PUSCH has been transmitted on the first uplink resource, or whether a PUSCH transmission has been skipped.

[0251] When the first UCI indicates that the first uplink transmission did not transmit the PUSCH (i.e., the PUSCH transmission was skipped), it can be assumed that the terminal only transmitted the first PUCCH and the terminal performed uplink transmission skip. The first PUCCH sent at this time is to ensure that the terminal and the network-side device have a consistent understanding of whether the terminal performed uplink transmission skip.

[0252] In some embodiments, the data to be sent may also be represented as cached data.

[0253] In some embodiments, the priority of the first UCI satisfies one of the following:

[0254] Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) > First UCI > Scheduling Request (SR) > High-priority Channel State Information (CSI) > Low-priority CSI; First UCI > HARQ-ACK > SR > High-priority CSI > Low-priority CSI.

[0255] HARQ-ACK > SR > First UCI > High-priority CSI > Low-priority CSI;

[0256] HARQ-ACK > SR > High-priority CSI > First UCI > Low-priority CSI;

[0257] HARQ-ACK > SR > High-priority CSI > Low-priority CSI > First UCI.

[0258] In some embodiments, if the first UCI is dropped, only the first PUSCH is sent on the first uplink resource, and other UCIs can be reused on this first PUSCH.

[0259] In some embodiments, when a PUSCH scheduled for transmission of the second PUSCH overlaps with the first uplink resource, the terminal can multiplex the first PUSCH onto the second PUSCH. Alternatively, to leverage the high reliability of PUSCH detection, the terminal may not multiplex the first PUSCH onto the second PUSCH; that is, even if there are PUSCH resources overlapping with the first uplink resource, the terminal does not need to generate a padding PDU for the multiplexing of the first PUSCH. Alternatively, the network-side device may also guarantee that there are no PUSCH resources overlapping with the first uplink resource, thus allowing the terminal to transmit the first PUSCH.

[0260] In some embodiments, if there is overlap between the third PUCCH resource scheduled for the third PUCCH transmission and the first uplink resource, the third PUCCH can be multiplexed for transmission on the first uplink resource. For example, the third PUCCH can be multiplexed on the first PUSCH in the first uplink transmission, that is, the first PUCCH portion is skipped, so that the transmission of the third PUCCH does not affect the reliability of the first PUCCH transmission. Alternatively, the third PUCCH can also be multiplexed on the first PUCCH in the first uplink transmission, which is beneficial for ensuring the transmission reliability of the third PUCCH. Or, in other embodiments, the third PUCCH may not be multiplexed for transmission on the first uplink resource, so that the transmission of the third PUCCH does not affect the transmission reliability of the first PUCCH.

[0261] In some embodiments, the first PUCCH is sent in the following manner:

[0262] Regardless of whether the terminal sends a PUSCH on the first uplink resource, the terminal always sends the first PUCCH on the first uplink resource; or

[0263] If the terminal transmits a PUSCH on the first uplink resource, the terminal transmits the first PUCCH on the first uplink resource; or

[0264] If the terminal does not send a PUSCH on the first uplink resource, the terminal sends the first PUCCH on the first uplink resource.

[0265] That is, the terminal can always send the first PUCCH on the first uplink resource, or send the first PUCCH only when the first PUSCH is sent, or send the first PUCCH only when the first PUSCH is not sent.

[0266] Example 3: The first uplink transmission includes a first preamble.

[0267] Therefore, in this embodiment of the application, the terminal carries a first preamble in the first uplink transmission. This can improve the inspection reliability of the pre-scheduled transmission by utilizing the high detection reliability of the preamble, ensuring that the terminal and the network-side device have a consistent understanding of whether the terminal skips the uplink transmission, thereby avoiding unnecessary retransmission scheduling and resource waste.

[0268] In some embodiments of this application, the first uplink transmission includes the first preamble and the first PUSCH, wherein the first uplink transmission satisfies at least one of the following:

[0269] The time-domain resources occupied by the first preamble include the first symbol or the first Y symbols of the first uplink resource, where Y is a positive integer;

[0270] The frequency domain resources occupied by the first preamble include all frequency domain units of the symbol containing the first uplink resource;

[0271] The time-domain resources occupied by the first PUSCH include the second symbol of the first uplink resource, or the time-domain resources occupied by the first PUSCH include J symbols starting from the first symbol after the first preamble, where J is a positive integer;

[0272] The frequency domain position occupied by the first PUSCH includes the frequency domain units that are not occupied on the symbol occupied by the first preamble. For example, the frequency domain resources occupied by the first PUSCH start from the frequency domain units (e.g., the lowest frequency domain unit or the highest frequency domain unit) that are not occupied on the symbol occupied by the first preamble.

[0273] The first preamble can be of at least one of the following types, including but not limited to: ZC sequence, M sequence, Gold sequence, Primary Synchronization Signal (PSS) sequence, and Secondary Synchronization Signal (SSS) sequence.

[0274] In some embodiments, the time-domain position of the first preamble is the first symbol or the first Y symbols of the first uplink resource. That is, the first preamble is located at the beginning of the first uplink resource. By placing the first preamble, which has high detection reliability, at the beginning of the first uplink resource, it is beneficial to improve the reliability of the network-side device in determining whether the terminal skips the uplink transmission through preamble detection. Figure 8 shows a schematic diagram of the composition of a first uplink transmission provided by an embodiment of this application. As shown in Figure 8, the first uplink transmission may include a first preamble and a first PUSCH. The bandwidth of the first preamble and the first PUSCH may be the same, and the first preamble may be located at the beginning of the first uplink transmission.

[0275] In some embodiments, the frequency domain range occupied by the first preamble includes all frequency domain units of the symbol containing the first uplink resource. By designing the frequency domain range of the first preamble to occupy all frequency domain units of the symbol containing the first uplink resource, it can be ensured that the first preamble occupies sufficient frequency domain units, which is beneficial to improving the reliability of network-side equipment in determining whether the terminal skips uplink transmission through preamble detection.

[0276] In some embodiments, the frequency domain unit occupied by the first preamble on the first uplink resource may be indicated by the first DCI, or pre-configured by the network-side device, or predefined.

[0277] In some embodiments, the first preamble may be determined based on at least one of the terminal identifier (UE ID) of the terminal, the resource location of the first preamble, and whether the first preamble carries additional information (or indicates additional information).

[0278] In some embodiments, the first preamble is also used to indicate at least one of the following:

[0279] Whether PUSCH was transmitted on the first uplink resource, or whether PUSCH transmission was skipped;

[0280] The data type carried in the PUSCH transmitted on the first uplink resource, such as padding data or service data;

[0281] Does the terminal still have data to send?

[0282] Does the terminal still have data to be sent with a priority greater than the first priority threshold?

[0283] The size of the data to be sent by the terminal;

[0284] The priority of the data to be sent by the terminal;

[0285] The latency requirement information of the terminal's data to be sent, such as PDB information.

[0286] That is, when the first preamble is carried in the first uplink transmission, the terminal can also use the first preamble to indicate other information, thereby assisting the network-side device in determining whether the terminal has skipped the uplink transmission, and also assisting the network-side device in subsequent scheduling of the terminal.

[0287] In some embodiments, when the first preamble indicates that the first uplink transmission did not transmit PUSCH (i.e., PUSCH transmission was skipped), it can be assumed that the terminal only transmitted the first preamble and the terminal performed uplink transmission skip. The first preamble sent at this time is to ensure that the terminal and the network-side device have a consistent understanding of whether the terminal performed uplink transmission skip.

[0288] In some embodiments, the first preamble is sent in the following manner:

[0289] Regardless of whether the terminal sends a PUSCH on the first uplink resource, the terminal always sends the first preamble on the first uplink resource; or

[0290] When the terminal transmits a PUSCH on the first uplink resource, the terminal transmits the first preamble on the first uplink resource; or

[0291] If the terminal does not send a PUSCH on the first uplink resource, the terminal sends the first preamble on the first uplink resource.

[0292] That is, the terminal can always send the first preamble on the first uplink resource, or send the first preamble only when the first PUSCH is sent, or send the first preamble only when the first PUSCH is not sent.

[0293] In some embodiments of this application, the time domain length of the first uplink resource is greater than or equal to P, and / or the frequency domain length of the first uplink resource is greater than or equal to Q, where P is a positive integer, Q is a positive integer, and the first uplink resource is the uplink resource scheduled by the first scheduling information.

[0294] Optionally, the time domain length of the first uplink resource can be the number of time domain units occupied by the first uplink resource.

[0295] Optionally, the frequency domain length of the first uplink resource can be the number of frequency domain units occupied by the first uplink resource.

[0296] It should be noted that the frequency domain unit in the embodiments of this application may include, but is not limited to, at least one of the following:

[0297] RE, RB, RE group, RB group.

[0298] It should be noted that the time-domain unit in the embodiments of this application may include, but is not limited to, at least one of the following:

[0299] One or more symbols, time slots, radio subframes, radio frames, milliseconds, seconds.

[0300] In some specific embodiments, when the first uplink transmission includes the first DMRS, the time domain length of the first uplink resource is greater than or equal to P, and / or the frequency domain length of the first uplink resource is greater than or equal to Q. This is beneficial for realizing the transmission of long-sequence DMRS and improving the reliability of network-side devices in detecting and determining whether a terminal skips the uplink transmission through DMRS.

[0301] In some specific embodiments, when the first uplink transmission includes the first PUCCH, the time domain length of the first uplink resource is greater than or equal to P, and / or the frequency domain length of the first uplink resource is greater than or equal to Q. This is beneficial to improving the reliability of PUCCH detection, thereby improving the reliability of the network-side device in determining whether the terminal skips the uplink transmission through PUCCH detection.

[0302] In some specific embodiments, when the first uplink transmission includes a first preamble, the time domain length of the first uplink resource is greater than or equal to P, and / or the frequency domain length of the first uplink resource is greater than or equal to Q. This is beneficial to improving the reliability of preamble detection, thereby improving the reliability of the network-side device in determining whether the terminal skips the uplink transmission through preamble detection.

[0303] Example 4: The terminal instructs the terminal via the second PUCCH whether to skip the first uplink transmission.

[0304] Therefore, in this embodiment of the application, before the terminal performs the first uplink transmission, it can send a second PUCCH in advance to indicate whether the terminal should skip the first uplink transmission. In this way, the network-side device can detect the PUCCH in advance to determine whether the terminal skips the pre-scheduled transmission, which can improve the reliability of the network-side device in determining whether the terminal skips the pre-scheduled transmission.

[0305] In some embodiments of this application, the method 200 further includes:

[0306] The terminal sends the second PUCCH on the second PUCCH resource. The second PUCCH is used to indicate whether the terminal should skip the first uplink transmission. The second PUCCH is sent before the first uplink transmission.

[0307] In some embodiments, the second PUCCH may include a second UCI, which is used to indicate whether the terminal skips the first uplink transmission.

[0308] In some embodiments, the priority of the second UCI satisfies one of the following:

[0309] HARQ-ACK > Second UCI > SR > High-priority CSI > Low-priority CSI;

[0310] Second UCI > HARQ-ACK > SR > High-priority CSI > Low-priority CSI;

[0311] HARQ-ACK > SR > Second UCI > High-priority CSI > Low-priority CSI;

[0312] HARQ-ACK > SR > High-priority CSI > Second UCI > Low-priority CSI;

[0313] HARQ-ACK > SR > High-priority CSI > Low-priority CSI > Second UCI.

[0314] In some embodiments, if the second PUCCH indicates that the first uplink transmission is skipped, the terminal does not perform the first uplink transmission; if the second PUCCH indicates that the first uplink transmission is not skipped, the terminal performs the first uplink transmission.

[0315] In some embodiments, the second PUCCH is transmitted between the first DCI and the first uplink transmission, or in other words, the second PUCCH resource is located between the resource location of the first DCI and the first uplink resource, as shown in FIG9.

[0316] In some embodiments, the second PUCCH resource and the first uplink resource are associated; for example, the time-domain location of the second PUCCH resource and the time-domain location of the first uplink resource have a first interval. This allows the network-side device sufficient processing time to acquire information about the second PUCCH, thereby determining whether to receive the second PUCCH on the first uplink resource. If it is determined that the terminal skipped the second PUCCH transmission, the first uplink resource can be reallocated, improving resource utilization.

[0317] In some embodiments, the second PUCCH resource is indicated by the first scheduling information, or is an uplink resource pre-configured by the network-side device, such as pre-configured via RRC signaling, or predefined. For example, when the network-side device indicates the first uplink resource via the first DCI, it simultaneously indicates the second PUCCH resource, which is used by the terminal to send the second PUCCH to indicate whether the terminal should skip the pre-scheduled transmission.

[0318] Optionally, the second PUCCH resource can be a periodic, semi-static, or inactive resource pre-configured by the network-side device. Optionally, when the network-side device indicates the second PUCCH resource via the first DCI, the terminal considers that this second PUCCH resource can be used to indicate whether the terminal should skip pre-scheduled transmissions. Optionally, when the network-side device indicates the first uplink resource via the first DCI, the terminal considers that the PUCCH resource spaced a first interval from the first uplink resource can be used to indicate whether the terminal should skip pre-scheduled transmissions.

[0319] Optionally, the resource location of the second PUCCH resource satisfies at least one of the following:

[0320] The time interval between the second PUCCH resource and the resource location of the first DCI is greater than the first processing time, wherein the first processing time includes the processing time of the first DCI and the transmission time of the second PUCCH.

[0321] The time interval between the second PUCCH resource and the first uplink resource is greater than the second processing time, which includes the processing time of the second PUCCH and / or the processing time of the first PUSCH.

[0322] Optionally, the first processing time can be predefined or pre-configured by the network-side device.

[0323] Optionally, the second processing time can be predefined or pre-configured by the network-side device.

[0324] In some embodiments, the first interval may be indicated by a first DCI, or pre-configured by the network-side device, or predefined.

[0325] Optionally, the first interval is greater than or equal to 0, and / or the first interval is less than or equal to a first duration threshold.

[0326] Optionally, the first duration threshold can be determined based on the second processing time. For example, the first duration threshold can be equal to the second processing time.

[0327] In some embodiments of this application, the method 200 further includes:

[0328] If the terminal skips the first uplink transmission, the terminal also skips the transmission of the second PUCCH.

[0329] In some embodiments, when the terminal skips the first uplink transmission (i.e., does not send the first PUSCH), if the first uplink resource and the third PUCCH resource overlap, wherein the third PUCCH resource is an uplink resource scheduled for the transmission of the third PUCCH, then the third PUCCH may not be multiplexed on the first PUSCH for transmission. That is, the terminal uses the control channel to send the third PUCCH, which is beneficial to improving the transmission reliability of the third PUCCH. Alternatively, the third PUCCH may also be multiplexed on the first PUCCH in the first uplink transmission.

[0330] In some embodiments of this application, the first DCI can also be a DCI scheduled by the network-side device based on the terminal's request information. For example, upon receiving the terminal's request information, the network-side device can send the first DCI to the terminal. The first DCI is used to schedule a second uplink transmission (the second uplink transmission is a non-pre-scheduled transmission, or in other words, the second uplink transmission is a normal uplink transmission), and the first DCI is also used to indicate a pre-scheduled uplink resource, i.e., a first uplink resource. Optionally, the first uplink resource is inferred by the network-side device based on information such as cache information and service information reported by the terminal. Pre-scheduling and indicating an uplink resource in advance helps reduce the uplink transmission latency of the terminal. Optionally, when the network-side device receives the second uplink transmission, it can determine that the terminal has received the pre-scheduled transmission. If no uplink transmission is detected on the pre-scheduled uplink resource, the network-side device can assume that the terminal has performed an uplink skip, thereby avoiding the problem of inconsistent understanding between the network side and the terminal side.

[0331] In some embodiments, the first DCI may indicate a second uplink resource, which is an uplink resource scheduled for a second uplink transmission (i.e., the second uplink resource is an uplink resource scheduled by the network-side device based on a terminal request). The pre-scheduled first uplink resource indicated in the first DCI may be determined based on the second uplink resource, for example, based on the start time-domain position of the second uplink resource, or based on the end time-domain position of the second uplink resource. Specifically, for example, the start or end time-domain position of the first uplink resource is spaced apart from the start or end time-domain position of the second uplink resource by an offset value. Optionally, the offset value may be indicated by the first DCI, or it may be pre-configured by the network-side device, or it may be predefined by the protocol. Optionally, the first DCI may also indicate the time-domain position (e.g., time-domain length) and / or frequency-domain position of the pre-scheduled uplink resource (i.e., the first uplink resource).

[0332] In some embodiments, the terminal performs a first uplink transmission, including:

[0333] If the first condition is met, the terminal performs the first uplink transmission;

[0334] The first condition includes at least one of the following:

[0335] The channel conditions between the terminal and the network-side equipment do not meet the requirements;

[0336] The priority of the first scheduling information is higher than the second priority threshold, that is, the first uplink transmission is a pre-scheduled transmission with a higher scheduling priority.

[0337] Optionally, the second priority threshold is predefined, or configured by the network-side device, for example, through the first DCI.

[0338] Optionally, the channel conditions between the terminal and the network-side equipment not meeting the requirements may include the channel quality information reported by the terminal to the network-side equipment being less than a first channel quality threshold. In this case, the channel conditions between the terminal and the network-side equipment can be considered poor, with significant interference, increasing the difficulty for the network-side equipment to detect whether the terminal has skipped uplink transmission. In this situation, the terminal performs a first uplink transmission with the first characteristic, which helps improve the reliability and accuracy of the network-side equipment in determining whether the terminal has skipped the pre-scheduled transmission, and reduces the false alarm probability of the network-side equipment.

[0339] For pre-scheduled transmissions with higher scheduling priority, the terminal executes the first uplink transmission with the first characteristic, which helps improve the reliability and accuracy of the network-side equipment in determining whether the terminal skips the pre-scheduled transmission, ensures the reliability of the pre-scheduled transmission, and reduces the false alarm probability of the network-side equipment.

[0340] In summary, in the embodiments of this application, the terminal can perform a first uplink transmission with a first feature. In this way, the network-side device can improve the reliability and accuracy of pre-scheduling detection by using the first feature corresponding to the first uplink transmission. This ensures that the network-side device and the terminal have a consistent understanding of whether the terminal has performed uplink skipping, reduces the probability of false alarms on the network side, and avoids the network-side device from thinking that the terminal has performed uplink transmission when the terminal skips uplink transmission, thereby scheduling the terminal's retransmission and causing a waste of resources.

[0341] For example, when the first uplink transmission includes the first DMRS, the network-side device can determine whether the terminal has performed an uplink transmission on the pre-scheduled uplink resources through DMRS sequence detection. The reliability of DMRS sequence detection requires a certain length or a certain number of sequences to be guaranteed. In this embodiment, by designing the sequence length and resource usage of the first DMRS, long-sequence DMRS transmission can be achieved, which is beneficial to improving the reliability of DMRS sequence detection of the network-side device and avoiding inconsistencies between the terminal and the network-side device in understanding whether the terminal skipped the uplink transmission due to interference or other reasons, thereby avoiding unnecessary retransmission scheduling and resource waste.

[0342] For example, when the first uplink transmission includes the first PUCCH, the network-side device can use the high detection reliability of the PUCCH to improve the inspection reliability of the pre-scheduled transmission, ensuring that the terminal and the network-side device have a consistent understanding of whether the terminal skips the uplink transmission, thereby avoiding unnecessary retransmission scheduling and resource waste.

[0343] For example, when the first uplink transmission includes a first preamble, the network-side device can use the high detection reliability of the preamble to improve the inspection reliability of the pre-scheduled transmission, ensuring that the terminal and the network-side device have a consistent understanding of whether the terminal skips the uplink transmission, thereby avoiding unnecessary retransmission scheduling and resource waste.

[0344] For example, before performing the first uplink transmission, the terminal can send a second PUCCH in advance to indicate whether the terminal should skip the first uplink transmission. In this way, the network-side device can detect the PUCCH in advance to determine whether the terminal skips the pre-scheduled transmission, which can improve the reliability of the network-side device in determining whether the terminal skips the pre-scheduled transmission.

[0345] The uplink transmission method provided in this application can be executed by a wireless communication device. This application uses an example of a wireless communication device executing the uplink transmission method to illustrate the wireless communication device provided in this application.

[0346] This application provides a wireless communication device. As an example, the wireless communication device may be a communication equipment or a component within a communication equipment, such as a chip. The communication equipment may be a terminal, a network-side device, or a server, etc. Exemplarily, the terminal may include, but is not limited to, the type of terminal 11 listed above, and the network-side device may include, but is not limited to, the type of network-side device 12 listed above. This application does not impose specific limitations.

[0347] The wireless communication device includes a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. For example, the processor can include general-purpose processors, special-purpose processors, such as a Central Processing Unit (CPU), microprocessor, Digital Signal Processor (DSP), Artificial Intelligence (AI) processor, Graphics Processing Unit (GPU), Application Specific Integrated Circuit (ASIC), Network Processor (NP), Field Programmable Gate Array (FPGA), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules can be implemented by a communication interface, which can include one or more of the following: transceiver, pins, circuits, bus, radio frequency unit, etc.

[0348] Specifically, referring to Figure 10, when the wireless communication device is a terminal or a component within a terminal, the wireless communication device 500 includes:

[0349] The sending module 510 is used to perform a first uplink transmission, which is scheduled by first scheduling information and has a first feature.

[0350] The first feature includes at least one of the following:

[0351] The first uplink transmission carries a first demodulation reference signal DMRS;

[0352] The first uplink transmission carries a first preamble;

[0353] The first uplink transmission carries the first physical uplink control channel (PUCCH);

[0354] The first uplink transmission is indicated by the second PUCCH whether the terminal skips the transmission.

[0355] In some embodiments, the first scheduling information is pre-scheduling information.

[0356] In some embodiments, the pattern of the first DMRS is indicated by first downlink control information (DCI), wherein the first DCI carries the first scheduling information; or

[0357] The pattern of the first DMRS is determined based on the frequency domain resources corresponding to the first uplink transmission.

[0358] In some embodiments, the first DMRS satisfies at least one of the following:

[0359] The first DMRS is repeatedly transmitted in the time domain;

[0360] The first DMRS uses a first mapping density for mapping, and the first mapping density is greater than a first density threshold;

[0361] The first DMRS is mapped to N1 symbols, where N1 is a positive integer;

[0362] The sequence of the first DMRS is generated using N2 symbols, where N2 is a positive integer;

[0363] The sequence length of the first DMRS is greater than or equal to the first threshold;

[0364] The first uplink transmission includes the first DMRS and the first physical uplink shared channel PUSCH, wherein the frequency domain range occupied by the first DMRS is greater than the frequency domain range occupied by the first PUSCH.

[0365] In some embodiments, the symbols used by the first DMRS to perform repeated transmissions are pre-configured by the network-side device, or are indicated by the first DCI, which carries the first scheduling information.

[0366] In some embodiments, the symbol used by the first DMRS to perform repeated transmissions is the next symbol of the DMRS symbols configured by the network-side device.

[0367] In some embodiments, the first DMRS is repeatedly transmitted in the time domain, including:

[0368] Only repeat the first symbol in the DMRS symbols configured on the network-side device for the first DMRS; or

[0369] Repeat all symbols in the DMRS symbols configured in the network-side device for the first DMRS.

[0370] In some embodiments, the frequency domain range occupied by the first DMRS is greater than the frequency domain range occupied by the first PUSCH, including at least one of the following:

[0371] The number of frequency domain units occupied by the first DMRS is K more than the number of frequency domain units occupied by the first PUSCH, where K is a positive integer;

[0372] In each symbol occupied by the first DMRS, the frequency domain range occupied by the first DMRS is greater than the frequency domain range of the first PUSCH.

[0373] On the first symbol occupied by the first DMRS, the frequency domain range occupied by the first DMRS is greater than the frequency domain range of the first PUSCH.

[0374] In some embodiments, K is predefined, or preconfigured by the network-side device, or indicated by the first DCI.

[0375] In some embodiments, the first DMRS is mapped as follows:

[0376] Starting from the first frequency domain start position of the first symbol occupied by the first DMRS, the sequence of the first DMRS is mapped. If there are still elements of the sequence of the first DMRS that have not been mapped after the mapping is completed on the first symbol occupied by the first DMRS, the remaining elements of the sequence of the first DMRS are mapped starting from the second frequency domain start position of X symbols after the first symbol occupied by the first DMRS. The second frequency domain start position is the same as the first frequency domain start position, or the second frequency domain start position has a first frequency domain offset from the first frequency domain start position, where X is a positive integer.

[0377] In some embodiments, the sequence of the first DMRS includes a sequence corresponding to a first bandwidth in a reference DMRS sequence, the reference DMRS sequence being generated based on the bandwidth of the operating frequency band of the terminal, wherein the first bandwidth is greater than the bandwidth occupied by the first uplink transmission.

[0378] In some embodiments, the device 500 further includes:

[0379] The processing module is configured to determine whether the terminal is allowed to perform uplink transmission skipping based on the first DCI, wherein the first DCI carries the first scheduling information.

[0380] In some embodiments, the processing module is specifically used for:

[0381] Based on the pattern of the DMRS indicated in the first DCI, the terminal determines whether to allow the terminal to perform uplink transmission skipping.

[0382] In some embodiments, the first uplink transmission includes the first PUCCH and the first PUSCH, wherein the first uplink transmission satisfies at least one of the following:

[0383] The time-domain resources occupied by the first PUCCH include the first symbol or the first L symbols of the first uplink resource, where the first uplink resource is the uplink resource scheduled by the first scheduling information, and L is a positive integer.

[0384] The frequency domain resources occupied by the first PUCCH include all frequency domain units of the symbol where the first uplink resource is located, and the first uplink resource is the uplink resource scheduled by the first scheduling information.

[0385] The time-domain resources occupied by the first PUSCH include the second symbol of the first uplink resource, or the time-domain resources occupied by the first PUSCH include Z symbols starting from the first symbol after the first PUSCH, where the first uplink resource is the uplink resource scheduled by the first scheduling information, and Z is a positive integer.

[0386] The frequency domain resources occupied by the first PUSCH include frequency domain units that are not occupied from the symbols occupied by the first PUCCH.

[0387] The first PUCCH carries a preamble.

[0388] In some embodiments, the first PUCCH is also used to indicate at least one of the following:

[0389] Whether a PUSCH was transmitted on the first uplink resource;

[0390] The data type carried in the PUSCH transmitted on the first uplink resource;

[0391] Does the terminal still have data to send?

[0392] Does the terminal still have data to be sent with a priority greater than the first priority threshold?

[0393] The size of the data to be sent by the terminal;

[0394] The priority of the data to be sent by the terminal;

[0395] The latency requirement information for the data to be sent by the terminal.

[0396] In some embodiments, the first PUCCH is sent in the following manner:

[0397] Regardless of whether the terminal sends a PUSCH on the first uplink resource, the terminal always sends the first PUCCH on the first uplink resource; or

[0398] If the terminal transmits a PUSCH on the first uplink resource, the terminal transmits the first PUCCH on the first uplink resource; or

[0399] If the terminal does not send a PUSCH on the first uplink resource, the terminal sends the first PUCCH on the first uplink resource.

[0400] In some embodiments, the first uplink transmission includes the first preamble and the first PUSCH, wherein the first uplink transmission satisfies at least one of the following:

[0401] The time-domain resources occupied by the first preamble include the first symbol or the first Y symbols of the first uplink resource, where the first uplink resource is the uplink resource scheduled by the first scheduling information, and Y is a positive integer.

[0402] The frequency domain resources occupied by the first preamble include all frequency domain units of the symbol where the first uplink resource is located, and the first uplink resource is the uplink resource scheduled by the first scheduling information.

[0403] The time-domain resources occupied by the first PUSCH include the second symbol of the first uplink resource, or the time-domain resources occupied by the first PUSCH include J symbols starting from the first symbol of the first preamble, where the first uplink resource is the uplink resource scheduled by the first scheduling information, and J is a positive integer.

[0404] The frequency domain position of the first PUSCH includes the unoccupied frequency domain units on the symbol occupied by the first preamble.

[0405] The first preamble may be of at least one of the following types: ZC sequence, M sequence, Gold sequence, primary synchronization signal PSS sequence, and second synchronization signal SSS sequence.

[0406] In some embodiments, the first preamble is also used to indicate at least one of the following:

[0407] Whether a PUSCH was transmitted on the first uplink resource;

[0408] The data type carried in the PUSCH transmitted on the first uplink resource;

[0409] Does the terminal still have data to send?

[0410] Does the terminal still have data to be sent with a priority greater than the first priority threshold?

[0411] The size of the data to be sent by the terminal;

[0412] The priority of the data to be sent by the terminal;

[0413] The latency requirement information for the data to be sent by the terminal.

[0414] In some embodiments, the first preamble is sent in the following manner:

[0415] Regardless of whether the terminal sends a PUSCH on the first uplink resource, the terminal always sends the first preamble on the first uplink resource; or

[0416] When the terminal transmits a PUSCH on the first uplink resource, the terminal transmits the first preamble on the first uplink resource; or

[0417] If the terminal does not send a PUSCH on the first uplink resource, the terminal sends the first preamble on the first uplink resource.

[0418] In some embodiments, the time domain length of the first uplink resource is greater than or equal to P, and / or the frequency domain length of the first uplink resource is greater than or equal to Q, where P is a positive integer, Q is a positive integer, and the first uplink resource is the uplink resource scheduled by the first scheduling information.

[0419] In some embodiments, the sending module 510 is further configured to:

[0420] The second PUCCH is sent on the second PUCCH resource, and the second PUCCH is used to indicate whether the terminal should skip the first uplink transmission.

[0421] In some embodiments, the time-domain location of the second PUCCH resource and the time-domain location of the first uplink resource have a first interval, and the first uplink resource is the uplink resource scheduled by the first scheduling information.

[0422] In some embodiments, the second PUCCH resource is indicated by the first scheduling information or is an uplink resource pre-configured by the network-side device.

[0423] In some embodiments, the sending module 510 is further configured to:

[0424] If the first uplink transmission is skipped, the transmission of the second PUCCH is also skipped.

[0425] In some embodiments, if the first uplink transmission is skipped and the first uplink resource and the third PUCCH resource overlap, wherein the third PUCCH resource is an uplink resource scheduled for the third PUCCH transmission and the first uplink resource is an uplink resource scheduled by the first scheduling information, then the third PUCCH is not multiplexed for transmission on the PUSCH.

[0426] In some embodiments, the sending module 510 is further configured to:

[0427] If the first condition is met, the first uplink transmission is performed;

[0428] The first condition includes at least one of the following:

[0429] The channel conditions between the terminal and the network-side equipment do not meet the requirements;

[0430] The priority of the scheduling corresponding to the first scheduling information is higher than the second priority threshold.

[0431] Referring to Figure 11, when the wireless communication device is a network-side device or a component within a network-side device, the wireless communication device 600 includes:

[0432] The sending module 610 is used to send first scheduling information, which is used to schedule a first uplink transmission, wherein the first uplink transmission has a first feature;

[0433] The first feature includes at least one of the following:

[0434] The first uplink transmission carries a first demodulation reference signal DMRS;

[0435] The first uplink transmission carries a first preamble;

[0436] The first uplink transmission carries the first physical uplink control channel (PUCCH);

[0437] The first uplink transmission is indicated by the second PUCCH whether the terminal skips the transmission.

[0438] In some embodiments, the first scheduling information is pre-scheduling information.

[0439] In some embodiments, the pattern of the first DMRS is indicated by first downlink control information (DCI), wherein the first DCI carries the first scheduling information; or

[0440] The pattern of the first DMRS is determined based on the frequency domain resources corresponding to the first uplink transmission.

[0441] In some embodiments, the first DMRS satisfies at least one of the following:

[0442] The first DMRS is repeatedly transmitted in the time domain;

[0443] The first DMRS uses a first mapping density for mapping, and the first mapping density is greater than a first density threshold;

[0444] The first DMRS is mapped to N1 symbols, where N1 is a positive integer;

[0445] The sequence of the first DMRS is generated using N2 symbols, where N2 is a positive integer;

[0446] The sequence length of the first DMRS is greater than the first threshold;

[0447] The first uplink transmission includes the first DMRS and the first physical uplink shared channel PUSCH, wherein the frequency domain range occupied by the first DMRS is greater than the frequency domain range occupied by the first PUSCH.

[0448] In some embodiments, the symbols used by the first DMRS to perform repeated transmissions are pre-configured by the network-side device, or are indicated by the first DCI, which carries the first scheduling information.

[0449] In some embodiments, the symbol used by the first DMRS to perform repeated transmissions is the next symbol of the DMRS symbols configured by the network-side device.

[0450] In some embodiments, the first DMRS is repeatedly transmitted in the time domain, including:

[0451] Only repeat the first symbol in the DMRS symbols configured on the network-side device for the first DMRS; or

[0452] Repeat all symbols in the DMRS symbols configured in the network-side device for the first DMRS.

[0453] In some embodiments, the frequency domain range occupied by the first DMRS is greater than the frequency domain range occupied by the first PUSCH, including at least one of the following:

[0454] The number of frequency domain units occupied by the first DMRS is K more than the number of frequency domain units occupied by the first PUSCH, where K is a positive integer;

[0455] In each symbol occupied by the first DMRS, the frequency domain range occupied by the first DMRS is greater than the frequency domain range of the first PUSCH.

[0456] On the first symbol occupied by the first DMRS, the frequency domain range occupied by the first DMRS is greater than the frequency domain range of the first PUSCH.

[0457] In some embodiments, K is predefined, or preconfigured by the network-side device, or indicated by the first DCI.

[0458] In some embodiments, the first DMRS is mapped as follows:

[0459] Starting from the first frequency domain start position of the first symbol occupied by the first DMRS, the sequence of the first DMRS is mapped. If there are still elements of the sequence of the first DMRS that have not been mapped after the mapping is completed on the first symbol occupied by the first DMRS, the remaining elements of the sequence of the first DMRS are mapped starting from the second frequency domain start position of X symbols after the first symbol occupied by the first DMRS. The second frequency domain start position is the same as the first frequency domain start position, or the second frequency domain start position has a first frequency domain offset from the first frequency domain start position, where X is a positive integer.

[0460] In some embodiments, the sequence of the first DMRS includes a sequence corresponding to a first bandwidth in a reference DMRS sequence, the reference DMRS sequence being generated based on the bandwidth of the operating frequency band of the terminal, wherein the first bandwidth is greater than the bandwidth occupied by the first uplink transmission.

[0461] In some embodiments, the first DCI is further used to determine whether the terminal is allowed to perform uplink transmission skip, wherein the first DCI carries the first scheduling information.

[0462] In some embodiments, the pattern of the DMRS indicated in the first DCI is used to determine whether the terminal is allowed to perform uplink transmission skipping.

[0463] In some embodiments, the first uplink transmission includes the first PUCCH and the first PUSCH, wherein the first uplink transmission satisfies at least one of the following:

[0464] The time-domain resources occupied by the first PUCCH include the first symbol or the first L symbols of the first uplink resource, where the first uplink resource is the uplink resource scheduled by the first scheduling information, and L is a positive integer.

[0465] The frequency domain resources occupied by the first PUCCH include all frequency domain units of the symbol where the first uplink resource is located, and the first uplink resource is the uplink resource scheduled by the first scheduling information.

[0466] The time-domain resources occupied by the first PUSCH include the second symbol of the first uplink resource, or the time-domain resources occupied by the first PUSCH include Z symbols starting from the first symbol after the first PUSCH, where the first uplink resource is the uplink resource scheduled by the first scheduling information, and Z is a positive integer.

[0467] The frequency domain resources occupied by the first PUSCH include frequency domain units that are not occupied from the symbols occupied by the first PUCCH.

[0468] The first PUCCH carries a preamble.

[0469] In some embodiments, the first PUCCH is also used to indicate at least one of the following:

[0470] Whether a PUSCH was transmitted on the first uplink resource;

[0471] The data type carried in the PUSCH transmitted on the first uplink resource;

[0472] Does the terminal still have data to send?

[0473] Does the terminal still have data to be sent with a priority greater than the first priority threshold?

[0474] The size of the data to be sent by the terminal;

[0475] The priority of the data to be sent by the terminal;

[0476] The latency requirement information for the data to be sent by the terminal.

[0477] In some embodiments, the first PUCCH is sent in the following manner:

[0478] Regardless of whether the terminal sends a PUSCH on the first uplink resource, the terminal always sends the first PUCCH on the first uplink resource; or

[0479] If the terminal transmits a PUSCH on the first uplink resource, the terminal transmits the first PUCCH on the first uplink resource; or

[0480] If the terminal does not send a PUSCH on the first uplink resource, the terminal sends the first PUCCH on the first uplink resource.

[0481] In some embodiments, the first uplink transmission includes the first preamble and the first PUSCH, wherein the first uplink transmission satisfies at least one of the following:

[0482] The time-domain resources occupied by the first preamble include the first symbol or the first Y symbols of the first uplink resource, where the first uplink resource is the uplink resource scheduled by the first scheduling information, and Y is a positive integer.

[0483] The frequency domain resources occupied by the first preamble include all frequency domain units of the symbol where the first uplink resource is located, and the first uplink resource is the uplink resource scheduled by the first scheduling information.

[0484] The time-domain resources occupied by the first PUSCH include the second symbol of the first uplink resource, or the time-domain resources occupied by the first PUSCH include J symbols starting from the first symbol of the first preamble, where the first uplink resource is the uplink resource scheduled by the first scheduling information, and J is a positive integer.

[0485] The frequency domain position of the first PUSCH includes the unoccupied frequency domain units on the symbol occupied by the first preamble.

[0486] The first preamble may be of at least one of the following types: ZC sequence, M sequence, Gold sequence, primary synchronization signal PSS sequence, and second synchronization signal SSS sequence.

[0487] In some embodiments, the first preamble is also used to indicate at least one of the following:

[0488] Whether a PUSCH was transmitted on the first uplink resource;

[0489] The data type carried in the PUSCH transmitted on the first uplink resource;

[0490] Does the terminal still have data to send?

[0491] Does the terminal still have data to be sent with a priority greater than the first priority threshold?

[0492] The size of the data to be sent by the terminal;

[0493] The priority of the data to be sent by the terminal;

[0494] The latency requirement information for the data to be sent by the terminal.

[0495] In some embodiments, the first preamble is sent in the following manner:

[0496] Regardless of whether the terminal sends a PUSCH on the first uplink resource, the terminal always sends the first preamble on the first uplink resource; or

[0497] When the terminal transmits a PUSCH on the first uplink resource, the terminal transmits the first preamble on the first uplink resource; or

[0498] If the terminal does not send a PUSCH on the first uplink resource, the terminal sends the first preamble on the first uplink resource.

[0499] In some embodiments, the time domain length of the first uplink resource is greater than or equal to P, and / or the frequency domain length of the first uplink resource is greater than or equal to Q, where P is a positive integer, Q is a positive integer, and the first uplink resource is the uplink resource scheduled by the first scheduling information.

[0500] In some embodiments, the device 600 further includes:

[0501] A receiving module is configured to receive a second PUCCH on a second PUCCH resource, the second PUCCH being used to indicate whether the terminal should skip the first uplink transmission.

[0502] In some embodiments, the receiving module is further configured to:

[0503] If the second PUCCH indication does not skip the first uplink transmission, the first uplink transmission is received based on the first scheduling information;

[0504] If the second PUCCH indicates that the first uplink transmission should be skipped, the first uplink transmission will not be received.

[0505] In some embodiments, the time-domain location of the second PUCCH resource and the time-domain location of the first uplink resource have a first interval, and the first uplink resource is the uplink resource scheduled by the first scheduling information.

[0506] In some embodiments, the second PUCCH resource is indicated by the first scheduling information or is an uplink resource pre-configured by the network-side device.

[0507] The wireless communication device provided in this application embodiment can implement the various processes implemented in the method embodiments of Figures 2 to 9 and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0508] As shown in Figure 12, this application embodiment also provides a communication device 800, including a processor 801 and a memory 802. The memory 802 stores a program or instructions that can run on the processor 801. For example, when the communication device 800 is a terminal, the program or instructions executed by the processor 801 implement the various steps of the method embodiments of Figures 2 to 9 above, and achieve the same technical effect. When the communication device 800 is a network-side device, the program or instructions executed by the processor 801 implement the various steps of the method embodiments of Figures 2 to 9 above, and achieve the same technical effect. To avoid repetition, these steps will not be repeated here.

[0509] This application also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps in the method embodiment shown in FIG13. This terminal embodiment corresponds to the above-described terminal-side method embodiment, and all implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and can achieve the same technical effect. The terminal may be the device 500 shown in FIG10. Specifically, FIG13 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of this application.

[0510] The terminal 900 includes, but is not limited to, at least some of the following components: radio frequency unit 901, network module 902, audio output unit 903, input unit 904, sensor 905, display unit 906, user input unit 907, interface unit 908, memory 909, and processor 910.

[0511] Those skilled in the art will understand that the terminal 900 may also include a power supply (such as a battery) for powering various components. The power supply can be logically connected to the processor 910 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The terminal structure shown in Figure 13 does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0512] It should be understood that, in this embodiment, the input unit 904 may include a graphics processor 9041 and a microphone 9042. The graphics processor 9041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 906 may include a display panel 9061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 907 includes at least one of a touch panel 9071 and other input devices 9072. The touch panel 9071 is also called a touch screen. The touch panel 9071 may include a touch detection device and a touch controller. Other input devices 9072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0513] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 901 can transmit it to the processor 910 for processing; in addition, the radio frequency unit 901 can send uplink data to the network-side device. Typically, the radio frequency unit 901 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0514] The memory 909 can be used to store software programs or instructions, as well as various data. The memory 909 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 909 may include volatile memory or non-volatile memory. The non-volatile 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. Volatile memory can 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 memory bus RAM (DRRAM). The memory 909 in the embodiments of this application includes, but is not limited to, these and any other suitable types of memory.

[0515] Processor 910 may include one or more processing units; optionally, processor 910 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 910.

[0516] The radio frequency unit 901 is used to perform a first uplink transmission, which is scheduled by first scheduling information and has a first feature.

[0517] The first feature includes at least one of the following:

[0518] The first uplink transmission carries a first demodulation reference signal DMRS;

[0519] The first uplink transmission carries a first preamble;

[0520] The first uplink transmission carries the first physical uplink control channel (PUCCH);

[0521] The first uplink transmission is indicated by the second PUCCH whether the terminal skips the transmission.

[0522] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant descriptions in Figures 2 to 9 of the method embodiment and achieve the same or corresponding technical effects. To avoid repetition, it will not be described again here.

[0523] This application also provides a network-side device, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method embodiment shown in FIG14. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this network-side device embodiment and can achieve the same technical effect.

[0524] Specifically, this application embodiment also provides a network-side device, which can be the device 600 shown in FIG11. As shown in FIG14, the network-side device 1000 includes: an antenna 1001, a radio frequency device 1002, a baseband device 1003, a processor 1004, and a memory 1005. The antenna 1001 is connected to the radio frequency device 1002. In the uplink direction, the radio frequency device 1002 receives information through the antenna 1001 and sends the received information to the baseband device 1003 for processing. In the downlink direction, the baseband device 1003 processes the information to be transmitted and sends it to the radio frequency device 1002, which processes the received information and then transmits it through the antenna 1001.

[0525] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 1003, which includes a baseband processor.

[0526] The baseband device 1003 may include at least one baseband board, on which multiple chips are disposed, as shown in FIG14. One of the chips is, for example, a baseband processor, which is connected to the memory 1005 via a bus interface to call the program in the memory 1005 and execute the network device operation shown in the above method embodiment.

[0527] In some embodiments, the radio frequency device 1002 is used to transmit first scheduling information, the first scheduling information being used to schedule a first uplink transmission, wherein the first uplink transmission has a first feature;

[0528] The first feature includes at least one of the following:

[0529] The first uplink transmission carries a first demodulation reference signal DMRS;

[0530] The first uplink transmission carries a first preamble;

[0531] The first uplink transmission carries the first physical uplink control channel (PUCCH);

[0532] The first uplink transmission is indicated by the second PUCCH whether the terminal skips the transmission.

[0533] The network-side device may also include a network interface 1006, such as a Common Public Radio Interface (CPRI).

[0534] Specifically, the network-side device 1000 in this application embodiment further includes: instructions or programs stored in memory 1005 and executable on processor 1004. The processor 1004 calls the instructions or programs in memory 1005 to execute the methods executed by each module shown in FIG11 and achieve the same technical effect. To avoid repetition, it will not be described in detail here.

[0535] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the method embodiments shown in Figures 2 to 9 above and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0536] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0537] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the method embodiments of Figures 2 to 9 above, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0538] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0539] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the method embodiments of Figures 2 to 9 above, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0540] This application also provides a communication system, including: a terminal and a network-side device, wherein the terminal can be used to perform the steps performed by the terminal in the uplink transmission method described above, and the network-side device can be used to perform the steps performed by the network-side device in the uplink transmission method described above.

[0541] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, 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 also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0542] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0543] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. An uplink transmission method, wherein, include: The terminal performs a first uplink transmission, which is scheduled by first scheduling information, and the first uplink transmission has a first feature; The first feature includes at least one of the following: The first uplink transmission carries a first demodulation reference signal DMRS; The first uplink transmission carries a first preamble; The first uplink transmission carries the first physical uplink control channel (PUCCH); The first uplink transmission is indicated by the second PUCCH whether the terminal skips the transmission.

2. The method according to claim 1, wherein, The first scheduling information is pre-scheduling information.

3. The method according to claim 1 or 2, wherein, The pattern of the first DMRS is indicated by the first downlink control information (DCI), wherein the first DCI carries the first scheduling information; or The pattern of the first DMRS is determined based on the frequency domain resources corresponding to the first uplink transmission.

4. The method according to any one of claims 1-3, wherein, The first DMRS satisfies at least one of the following: The first DMRS is repeatedly transmitted in the time domain; The first DMRS uses a first mapping density for mapping, and the first mapping density is greater than a first density threshold; The first DMRS is mapped to N1 symbols, where N1 is a positive integer; The sequence of the first DMRS is generated using N2 symbols, where N2 is a positive integer; The sequence length of the first DMRS is greater than or equal to the first threshold; The first uplink transmission includes the first DMRS and the first physical uplink shared channel PUSCH, wherein the frequency domain range occupied by the first DMRS is greater than the frequency domain range occupied by the first PUSCH.

5. The method according to claim 4, wherein, The symbols used by the first DMRS to perform repeated transmissions are pre-configured by the network-side device, or indicated by the first DCI, which carries the first scheduling information.

6. The method according to claim 4 or 5, wherein, The symbol used by the first DMRS to perform repeated transmission is the next symbol of the DMRS symbol configured by the network-side device.

7. The method according to any one of claims 4-6, wherein, The first DMRS is repeatedly transmitted in the time domain, including: Only repeat the first symbol in the DMRS symbols configured on the network-side device for the first DMRS; or Repeat all symbols in the DMRS symbols configured on the network-side device in the first DMRS.

8. The method according to any one of claims 4-7, wherein, The frequency domain range occupied by the first DMRS is greater than the frequency domain range occupied by the first PUSCH, including at least one of the following: The number of frequency domain units occupied by the first DMRS is K more than the number of frequency domain units occupied by the first PUSCH, where K is a positive integer; In each symbol occupied by the first DMRS, the frequency domain range occupied by the first DMRS is greater than the frequency domain range occupied by the first PUSCH. On the first symbol occupied by the first DMRS, the frequency domain range occupied by the first DMRS is greater than the frequency domain range occupied by the first PUSCH.

9. The method according to claim 8, wherein, The K is predefined, or pre-configured by the network-side device, or indicated by a first DCI, wherein the first DCI carries the first scheduling information.

10. The method according to any one of claims 1-9, wherein, The first DMRS is mapped as follows: Starting from the first frequency domain start position of the first symbol occupied by the first DMRS, the sequence of the first DMRS is mapped. If there are still elements of the sequence of the first DMRS that have not been mapped after the mapping is completed on the first symbol occupied by the first DMRS, the remaining elements of the sequence of the first DMRS are mapped starting from the second frequency domain start position of X symbols after the first symbol occupied by the first DMRS. The second frequency domain start position is the same as the first frequency domain start position, or the second frequency domain start position has a first frequency domain offset from the first frequency domain start position, where X is a positive integer. The first DMRS sequence includes a sequence corresponding to the first bandwidth in the reference DMRS sequence, which is generated based on the bandwidth of the terminal's operating frequency band, wherein the first bandwidth is greater than the bandwidth occupied by the first uplink transmission.

11. The method according to any one of claims 1-10, wherein, The method further includes: The terminal determines whether to allow the terminal to perform uplink transmission skipping based on the first DCI, wherein the first DCI carries the first scheduling information.

12. The method according to claim 11, wherein, The terminal determines whether to allow the terminal to perform uplink transmission skipping based on the first DCI, including: Based on the pattern of the DMRS indicated in the first DCI, the terminal determines whether to allow the terminal to perform uplink transmission skipping.

13. The method according to any one of claims 1-12, wherein, The first uplink transmission includes the first PUCCH and the first PUSCH, wherein the first uplink transmission satisfies at least one of the following: The time-domain resources occupied by the first PUCCH include the first symbol or the first L symbols of the first uplink resource, where the first uplink resource is the uplink resource scheduled by the first scheduling information, and L is a positive integer. The frequency domain resources occupied by the first PUCCH include all frequency domain units of the symbol where the first uplink resource is located, and the first uplink resource is the uplink resource scheduled by the first scheduling information. The time-domain resources occupied by the first PUSCH include the second symbol of the first uplink resource, or the time-domain resources occupied by the first PUSCH include Z symbols starting from the first symbol after the first PUSCH, where the first uplink resource is the uplink resource scheduled by the first scheduling information, and Z is a positive integer. The frequency domain resources occupied by the first PUSCH include the unoccupied frequency domain units on the symbols occupied by the first PUCCH. The first PUCCH carries a preamble.

14. The method according to claim 13, wherein, The first PUCCH is also used to indicate at least one of the following: Whether a PUSCH was transmitted on the first uplink resource; The data type carried in the PUSCH transmitted on the first uplink resource; Does the terminal still have data to send? Does the terminal still have data to be sent with a priority greater than the first priority threshold? The size of the data to be sent by the terminal; The priority of the data to be sent by the terminal; The latency requirement information for the data to be sent by the terminal.

15. The method according to claim 13 or 14, wherein, The first PUCCH is sent in the following manner: Regardless of whether the terminal sends a PUSCH on the first uplink resource, the terminal always sends the first PUCCH on the first uplink resource; or When the terminal transmits a PUSCH on the first uplink resource, the terminal transmits the first PUCCH on the first uplink resource; or If the terminal does not send a PUSCH on the first uplink resource, the terminal sends the first PUCCH on the first uplink resource.

16. The method according to any one of claims 1-15, wherein, The first uplink transmission includes the first preamble and the first PUSCH, wherein the first uplink transmission satisfies at least one of the following: The time-domain resources occupied by the first preamble include the first symbol or the first Y symbols of the first uplink resource, where the first uplink resource is the uplink resource scheduled by the first scheduling information, and Y is a positive integer. The frequency domain resources occupied by the first preamble include all frequency domain units of the symbol where the first uplink resource is located, and the first uplink resource is the uplink resource scheduled by the first scheduling information; The time-domain resources occupied by the first PUSCH include the second symbol of the first uplink resource, or the time-domain resources occupied by the first PUSCH include J symbols starting from the first symbol of the first preamble, where the first uplink resource is the uplink resource scheduled by the first scheduling information, and J is a positive integer. The frequency domain position occupied by the first PUSCH includes the unoccupied frequency domain units on the symbol occupied by the first preamble; The first preamble may be of at least one of the following types: ZC sequence, M sequence, Gold sequence, primary synchronization signal PSS sequence, and second synchronization signal SSS sequence.

17. The method according to claim 16, wherein, The first preamble is also used to indicate at least one of the following: Whether a PUSCH was transmitted on the first uplink resource; The data type carried in the PUSCH transmitted on the first uplink resource; Does the terminal still have data to send? Does the terminal still have data to be sent with a priority greater than the first priority threshold? The size of the data to be sent by the terminal; The priority of the data to be sent by the terminal; The latency requirement information for the data to be sent by the terminal.

18. The method according to claim 16 or 17, wherein, The first preamble is sent in the following manner: Regardless of whether the terminal sends a PUSCH on the first uplink resource, the terminal always sends the first preamble on the first uplink resource; or When the terminal transmits PUSCH on the first uplink resource, the terminal transmits the first preamble on the first uplink resource; or If the terminal does not send a PUSCH on the first uplink resource, the terminal sends the first preamble on the first uplink resource.

19. The method according to any one of claims 1-18, wherein, The time domain length of the first uplink resource is greater than or equal to P, and / or the frequency domain length of the first uplink resource is greater than or equal to Q, where P is a positive integer, Q is a positive integer, and the first uplink resource is the uplink resource scheduled by the first scheduling information.

20. The method according to any one of claims 1-19, wherein, Before the terminal performs the first uplink transmission, the method further includes: The terminal sends the second PUCCH on the second PUCCH resource, and the second PUCCH is used to indicate whether the terminal should skip the first uplink transmission.

21. The method according to claim 20, wherein, The time domain location of the second PUCCH resource and the time domain location of the first uplink resource have a first interval, and the first uplink resource is the uplink resource scheduled by the first scheduling information.

22. The method according to claim 20 or 21, wherein, The second PUCCH resource is indicated by the first scheduling information or is an uplink resource pre-configured by the network-side device.

23. The method according to any one of claims 20-22, wherein, The method further includes: If the terminal skips the first uplink transmission, the terminal also skips the transmission of the second PUCCH.

24. The method according to any one of claims 1-23, wherein, If the terminal skips the first uplink transmission, and the first uplink resource and the third PUCCH resource overlap, wherein the third PUCCH resource is an uplink resource scheduled for the third PUCCH transmission, and the first uplink resource is an uplink resource scheduled by the first scheduling information, then the third PUCCH is not multiplexed for transmission on the PUSCH.

25. The method according to any one of claims 1-24, wherein, The terminal performs a first uplink transmission, including: If the first condition is met, the terminal performs the first uplink transmission; The first condition includes at least one of the following: The channel conditions between the terminal and the network-side equipment do not meet the requirements; The priority of the scheduling corresponding to the first scheduling information is higher than the second priority threshold.

26. An uplink transmission method, wherein, include: The network-side device sends first scheduling information, which is used to schedule a first uplink transmission, wherein the first uplink transmission has a first feature; The first feature includes at least one of the following: The first uplink transmission carries a first demodulation reference signal DMRS; The first uplink transmission carries a first preamble; The first uplink transmission carries the first physical uplink control channel (PUCCH); The first uplink transmission is indicated by the second PUCCH whether the terminal skips the transmission.

27. The method according to claim 26, wherein, After the network-side device sends the first scheduling information, the method further includes: The network-side device receives a second PUCCH on the second PUCCH resource, the second PUCCH being used to indicate whether the terminal should skip the first uplink transmission.

28. The method according to claim 27, wherein, The method further includes: If the second PUCCH indication does not skip the first uplink transmission, the network-side device receives the first uplink transmission based on the first scheduling information; If the second PUCCH indicates that the first uplink transmission should be skipped, the network-side device will not receive the first uplink transmission.

29. A wireless communication device, wherein, include: A sending module is used to perform a first uplink transmission, the first uplink transmission being scheduled by first scheduling information, and the first uplink transmission having a first feature; The first feature includes at least one of the following: The first uplink transmission carries a first demodulation reference signal DMRS; The first uplink transmission carries a first preamble; The first uplink transmission carries the first physical uplink control channel (PUCCH); The first uplink transmission is indicated by the second PUCCH whether the terminal skips the transmission.

30. The apparatus according to claim 29, wherein, The first DMRS satisfies at least one of the following: The first DMRS is repeatedly transmitted in the time domain; The first DMRS uses a first mapping density for mapping, and the first mapping density is greater than a first density threshold; The first DMRS is mapped to N1 symbols, where N1 is a positive integer; The sequence of the first DMRS is generated using N2 symbols, where N2 is a positive integer; The sequence length of the first DMRS is greater than or equal to the first threshold; The first uplink transmission includes the first DMRS and the first physical uplink shared channel PUSCH, wherein the frequency domain range occupied by the first DMRS is greater than the frequency domain range occupied by the first PUSCH.

31. The apparatus according to claim 29 or 30, wherein, The first uplink transmission includes the first PUCCH and the first PUSCH, wherein the first uplink transmission satisfies at least one of the following: The time-domain resources occupied by the first PUCCH include the first symbol or the first L symbols of the first uplink resource, where the first uplink resource is the uplink resource scheduled by the first scheduling information, and L is a positive integer. The frequency domain resources occupied by the first PUCCH include all frequency domain units of the symbol where the first uplink resource is located, and the first uplink resource is the uplink resource scheduled by the first scheduling information. The time-domain resources occupied by the first PUSCH include the second symbol of the first uplink resource, or the time-domain resources occupied by the first PUSCH include Z symbols starting from the first symbol after the first PUSCH, where the first uplink resource is the uplink resource scheduled by the first scheduling information, and Z is a positive integer. The frequency domain resources occupied by the first PUSCH include frequency domain units that are not occupied from the symbols occupied by the first PUCCH. The first PUCCH carries a preamble.

32. The apparatus according to any one of claims 29-31, wherein, The first uplink transmission includes the first preamble and the first PUSCH, wherein the first uplink transmission satisfies at least one of the following: The time-domain resources occupied by the first preamble include the first symbol or the first Y symbols of the first uplink resource, where the first uplink resource is the uplink resource scheduled by the first scheduling information, and Y is a positive integer. The frequency domain resources occupied by the first preamble include all frequency domain units of the symbol where the first uplink resource is located, and the first uplink resource is the uplink resource scheduled by the first scheduling information. The time-domain resources occupied by the first PUSCH include the second symbol of the first uplink resource, or the time-domain resources occupied by the first PUSCH include J symbols starting from the first symbol of the first preamble, where the first uplink resource is the uplink resource scheduled by the first scheduling information, and J is a positive integer. The frequency domain position of the first PUSCH includes the unoccupied frequency domain units on the symbol occupied by the first preamble. The first preamble may be of at least one of the following types: ZC sequence, M sequence, Gold sequence, primary synchronization signal PSS sequence, and second synchronization signal SSS sequence.

33. The apparatus according to any one of claims 29-32, wherein, The sending module is also used for: The second PUCCH is sent on the second PUCCH resource, and the second PUCCH is used to indicate whether the terminal should skip the first uplink transmission.

34. A wireless communication device, wherein, include: A sending module is used to send first scheduling information, the first scheduling information being used to schedule a first uplink transmission, wherein the first uplink transmission has a first feature; The first feature includes at least one of the following: The first uplink transmission carries a first demodulation reference signal DMRS; The first uplink transmission carries a first preamble; The first uplink transmission carries the first physical uplink control channel (PUCCH); The first uplink transmission is indicated by the second PUCCH whether the terminal skips the transmission.

35. The apparatus according to claim 34, wherein, The device further includes: A receiving module is configured to receive a second PUCCH on a second PUCCH resource, the second PUCCH being used to indicate whether the terminal should skip the first uplink transmission.

36. The apparatus according to claim 35, wherein, The receiving module is also used for: If the second PUCCH indication does not skip the first uplink transmission, the first uplink transmission is received based on the first scheduling information; If the second PUCCH indicates that the first uplink transmission should be skipped, the first uplink transmission will not be received.

37. A terminal, wherein, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the uplink transmission method as described in any one of claims 1 to 25.

38. A network-side device, wherein, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the uplink transmission method as described in any one of claims 26 to 28.

39. A readable storage medium, wherein, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the uplink transmission method as described in any one of claims 1 to 25, or implement the steps of the uplink transmission method as described in any one of claims 26 to 28.

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