Wireless communication method, terminal device, and network device

Abstract

The present application provides a wireless communication method, a terminal device, and a network device. The method comprises: a terminal device transmits a demodulation reference signal (DMRS) in a first mode or a second mode, wherein the first mode comprises that the DMRS of the terminal device is carried on a first resource and a second resource, the DMRS of the terminal device is scrambled by means of an orthogonal code, and the second mode comprises that the DMRS of the terminal device is carried on the first resource or the second resource.

Description

Wireless communication method, terminal device and network device Technical Field

[0001] The present application relates to the field of communication technology, and more specifically, to a wireless communication method, a terminal device, and a network device. Background Art

[0002] Related technologies enhance uplink coverage by repeatedly transmitting the physical uplink shared channel (PUSCH), but this approach significantly reduces resource utilization efficiency. To address this issue, multiple devices are multiplexed by applying orthogonal codes to the PUSCH resources. Improving multiplexing capability further improves resource utilization efficiency, and multiplexing capability depends on channel estimation capabilities.

[0003] Summary of the Invention

[0004] The present application provides a wireless communication method, terminal equipment and network equipment. The various aspects involved in the present application are introduced below.

[0005] In a first aspect, a wireless communication method is provided, including: a terminal device transmits a demodulation reference signal DMRS through a first method or a second method, the first method includes the DMRS of the terminal device being carried on a first resource and a second resource, and the DMRS of the terminal device is scrambled by an orthogonal code, and the second method includes the DMRS of the terminal device being carried on the first resource or the second resource.

[0006] According to a second aspect, a wireless communication method is provided, including: a network device receives a demodulation reference signal DMRS sent by a terminal device, and the DMRS is transmitted in a first manner or a second manner. The first manner includes the DMRS of the terminal device being carried on a first resource and a second resource, and the DMRS of the terminal device is encrypted by an orthogonal code. The second manner includes the DMRS of the terminal device being carried on the first resource or the second resource.

[0007] According to a third aspect, a terminal device is provided, including: a transmission unit for transmitting a demodulation reference signal DMRS in a first manner or a second manner, wherein the first manner includes the DMRS of the terminal device being carried on a first resource and a second resource, and the DMRS of the terminal device being scrambled by an orthogonal code, and the second manner includes the DMRS of the terminal device being carried on the first resource or the second resource.

[0008] In a fourth aspect, a network device is provided, including: a receiving unit for receiving a demodulation reference signal DMRS sent by a terminal device, wherein the DMRS is transmitted in a first manner or a second manner, wherein the first manner includes the DMRS of the terminal device being carried on a first resource and a second resource, and the DMRS of the terminal device is scrambled by an orthogonal code, and the second manner includes the DMRS of the terminal device being carried on the first resource or the second resource.

[0009] In a fifth aspect, a terminal device is provided, comprising a processor, a memory, and a communication interface, wherein the memory is used to store one or more computer programs, and the processor is used to call the computer program in the memory so that the terminal device executes part or all of the steps in the method of the first aspect.

[0010] In the sixth aspect, a network device is provided, comprising a processor, a memory, and a communication interface, wherein the memory is used to store one or more computer programs, and the processor is used to call the computer program in the memory so that the network device executes part or all of the steps in the method of the second aspect.

[0011] In a seventh aspect, an embodiment of the present application provides a communication system, which includes the above-mentioned terminal and / or network device. In another possible design, the system may also include other devices that interact with the terminal or network device in the solution provided in the embodiment of the present application.

[0012] In an eighth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and the computer program enables the terminal to execute part or all of the steps in the above-mentioned first or second aspect method.

[0013] In a ninth aspect, embodiments of the present application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, wherein the computer program is operable to cause a terminal to perform some or all of the steps of the method of the first or second aspect described above. In some implementations, the computer program product may be a software installation package.

[0014] In the tenth aspect, an embodiment of the present application provides a chip comprising a memory and a processor, wherein the processor can call and run a computer program from the memory to implement some or all of the steps described in the method of the first or second aspect above.

[0015] In an embodiment of the present application, by applying orthogonal codes on the DMRS resources of multiple resource units (i.e., the first method), or staggered transmission of DMRS on the DMRS resources of different resource units (i.e., the second method), it helps to improve the channel estimation capability, thereby further improving resource utilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG1A is an example diagram of a communication scenario to which an embodiment of the present application can be applied.

[0017] FIG1B is an example diagram of another communication scenario to which embodiments of the present application may be applied.

[0018] FIG1C is an example diagram of another communication scenario to which the embodiments of the present application can be applied.

[0019] FIG2 is an example diagram of the method provided in an embodiment of the present application applied to time domain resources.

[0020] FIG3 is a flow chart of a wireless communication method according to an embodiment of the present application.

[0021] FIG4 is an example diagram of a resource group in a third resource provided in an embodiment of the present application.

[0022] FIG5 is another example diagram of a resource group in a third resource provided in an embodiment of the present application.

[0023] FIG6 is an example diagram of frequency hopping transmission of PUSCH provided in an embodiment of the present application.

[0024] FIG7 is another example diagram of frequency hopping transmission of PUSCH provided in an embodiment of the present application.

[0025] FIG8 is another example diagram of the method provided in an embodiment of the present application applied to time domain resources.

[0026] FIG9 is another example diagram of the method provided in an embodiment of the present application applied to time domain resources.

[0027] FIG10 is an example diagram of the method provided in an embodiment of the present application applied to frequency domain resources.

[0028] FIG11 is a schematic diagram of a terminal device according to an embodiment of the present application.

[0029] FIG12 is a schematic diagram of a network device according to an embodiment of the present application.

[0030] FIG13 is a schematic structural diagram of a communication device according to an embodiment of the present application. DETAILED DESCRIPTION

[0031] The technical solution in this application will be described below with reference to the accompanying drawings.

[0032] Communication system architecture

[0033] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: global system of mobile communication (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, advanced long term evolution (LTE-A) system, new radio (NR) system, evolution system of NR system, LTE-based access to unlicensed spectrum (LTE-U) system, NR-based access to unlicensed spectrum (NR-U) system, non-terrestrial network (NTN) system, universal mobile telecommunication system (UMTS), wireless local area networks (WLAN), wireless fidelity (WLAN), etc. fidelity, WiFi), fifth-generation communication (5G) systems or other communication systems, such as future communication systems, such as sixth-generation mobile communication systems, and satellite communication systems.

[0034] Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communications, but will also support, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), vehicle-to-vehicle (V2V) communication, or vehicle-to-everything (V2X) communication, and the embodiments of the present application can also be applied to these communication systems.

[0035] The communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, and a standalone (SA) networking scenario.

[0036] The communication system in the embodiment of the present application can be applied to an unlicensed spectrum, where the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiment of the present application can also be applied to an authorized spectrum, where the authorized spectrum can also be considered as a dedicated spectrum.

[0037] The embodiments of the present application can be applied to NTN systems as well as terrestrial networks (TN) systems. By way of example and not limitation, NTN systems include NR-based NTN systems and Internet of Things (IoT)-based NTN systems.

[0038] The embodiments of the present application describe various embodiments in conjunction with network devices and terminal devices, where the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

[0039] In an embodiment of the present application, the terminal device may be a station (STATION, ST) in a WLAN, a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) device, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a next-generation communication system such as a terminal device in an NR network, or a terminal device in a future-evolved public land mobile network (PLMN) network, etc.

[0040] In an embodiment of the present application, a terminal device may be a device that provides voice and / or data connectivity to a user and can be used to connect people, objects, and machines, such as a handheld device with wireless connection capabilities, an in-vehicle device, etc. The terminal device in the embodiment of the present application may be a mobile phone, a tablet computer, a laptop computer, a PDA, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. Optionally, the terminal device may be used to act as a base station. For example, the terminal device may act as a scheduling entity that provides sidelink signals between terminal devices in V2X or D2D, etc. For example, a cellular phone and a car communicate with each other using sidelink signals. Cellular phones and smart home devices communicate with each other without relaying the communication signal through a base station.

[0041] In an embodiment of the present application, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons and satellites, etc.).

[0042] In the embodiments of the present application, the terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc. The terminal device involved in the embodiments of the present application may also be referred to as a terminal, user equipment (UE), an access terminal device, a vehicle-mounted terminal, an industrial control terminal, a UE unit, a UE station, a mobile station, a mobile station, a remote station, a remote terminal device, a mobile device, a UE, a wireless communication device, a UE agent, or a UE device, etc. The terminal device may also be fixed or mobile.

[0043] As an example and not a limitation, in the embodiment of the present application, the terminal device may also be a wearable device. Wearable devices may also be called wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are fully functional, large in size, and can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0044] The network device in the embodiments of the present application may be a device for communicating with a terminal device, and may also be referred to as an access network device or a radio access network device. For example, the network device may be a base station. The network device in the embodiments of the present application may refer to a radio access network (RAN) node (or device) that connects a terminal device to a wireless network. A base station may broadly cover various names as follows, or be replaced with the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmitting and receiving point (TRP), transmitting point (TP), master station MeNB, secondary station SeNB, multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station may be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof. The base station may also refer to a communication module, modem or chip provided in the aforementioned device or apparatus. The base station may also be a mobile switching center and a device-to-device D2D, vehicle-to-everything (V2X), machine-to-machine (M2M) communication device that performs the base station function, a network side device in a 6G network, a device that performs the base station function in a future communication system, etc. The base station may support networks with the same or different access technologies. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network equipment.

[0045] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move based on the location of the mobile base station. In other examples, a helicopter or drone can be configured to act as a device that communicates with another base station.

[0046] In some deployments, the network device in the embodiments of the present application may refer to a CU or a DU, or the network device may include a CU and a DU. The gNB may also include an AAU.

[0047] The network equipment and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed in the air on aircraft, balloons, and satellites. The embodiments of this application do not limit the scenarios in which the network equipment and terminal devices are located.

[0048] As an example and not a limitation, in an embodiment of the present application, a network device may have a mobile feature, for example, the network device may be a mobile device. In some embodiments of the present application, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. In some embodiments of the present application, the network device may also be a base station set up in a location such as land or water.

[0049] In an embodiment of the present application, the network device can provide services for a cell, and the terminal device communicates with the network device through the transmission resources used by the cell (for example, frequency domain resources, or spectrum resources). The cell can be a cell corresponding to the network device (for example, a base station). The cell can belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0050] For example, Figure 1A is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application. As shown in Figure 1A, the communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or also referred to as a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographic area and may communicate with terminal devices located within the coverage area.

[0051] Figure 1A exemplarily shows a network device and two terminal devices. In some embodiments of the present application, the communication system 100 may include multiple network devices and each network device may include other number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0052] For example, FIG1B is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application. Referring to FIG1B , a terminal device 1101 and a satellite 1102 are included, and wireless communication can be performed between the terminal device 1101 and the satellite 1102. The network formed between the terminal device 1101 and the satellite 1102 can also be referred to as an NTN. In the architecture of the communication system shown in FIG1B , the satellite 1102 can have the function of a base station, and the terminal device 1101 and the satellite 1102 can communicate directly. In the system architecture, the satellite 1102 can be referred to as a network device. In some embodiments of the present application, the communication system may include multiple network devices 1102, and each network device 1102 may include other numbers of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0053] For example, FIG1C is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application. Referring to FIG1C , it includes a terminal device 1201, a satellite 1202, and a base station 1203. Wireless communication can be performed between the terminal device 1201 and the satellite 1202, and communication can be performed between the satellite 1202 and the base station 1203. The network formed between the terminal device 1201, the satellite 1202, and the base station 1203 can also be referred to as an NTN. In the architecture of the communication system shown in FIG1C , the satellite 1202 may not have the function of a base station, and the communication between the terminal device 1201 and the base station 1203 needs to be transferred through the satellite 1202. In this system architecture, the base station 1203 can be referred to as a network device. In some embodiments of the present application, a plurality of network devices 1203 may be included in the communication system, and each network device 1203 may include other number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0054] It should be noted that Figures 1A-1C are only examples of the system to which this application is applicable. Of course, the method shown in the embodiment of this application can also be applied to other systems, such as 5G communication systems, LTE communication systems, etc., and the embodiment of this application does not make specific limitations on this.

[0055] In some embodiments of the present application, the wireless communication system shown in Figures 1A-1C may also include other network entities such as a mobility management entity (MME) and an access and mobility management function (AMF), but the embodiments of the present application are not limited to this.

[0056] It should be understood that in the embodiments of the present application, a device having a communication function in a network / system may be referred to as a communication device. Taking the communication system 100 shown in FIG1A as an example, the communication device may include a network device 110 and a terminal device 120 having a communication function. The network device 110 and the terminal device 120 may be the specific devices described above and will not be described in detail here. The communication device may also include other devices in the communication system 100, such as a network controller, a mobility management entity, and other network entities, which are not limited in the embodiments of the present application.

[0057] It should be understood that the "indication" mentioned in the embodiments of this application can be a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B.

[0058] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and being indicated, configuration and being configured, etc.

[0059] The “configuration” in the embodiment of the present application may include configuration through at least one of system messages, radio resource control (RRC) signaling and media access control element (MAC CE).

[0060] In some embodiments of the present application, "predefined" or "preset" may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., a terminal device or a network device). This application does not limit the specific implementation method. For example, predefined may refer to information defined in a protocol.

[0061] In some embodiments of the present application, the "protocol" may refer to a standard protocol in the field of communications, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and this application does not limit this.

[0062] For ease of understanding, the communication process involved in the embodiments of the present application is introduced below.

[0063] NTN

[0064] Currently, 3GPP is researching NTN technology. NTN generally uses satellite communications to provide communication services to users on the ground. Compared to terrestrial communication networks (for example, ground cellular networks), satellite communications offer many unique advantages.

[0065] First, satellite communications are not restricted by user geography. For example, conventional terrestrial communication networks cannot cover areas where network equipment cannot be deployed, such as oceans, mountains, and deserts. Similarly, terrestrial communication networks do not cover certain sparsely populated areas. However, because satellite communications can cover a large ground area and orbit the Earth, theoretically, every corner of the Earth can be covered by a satellite communication network.

[0066] Secondly, satellite communications have significant social value. They can provide low-cost coverage to remote, mountainous areas and impoverished countries and regions, enabling people in these areas to enjoy advanced voice communications and mobile internet technologies. From this perspective, satellite communications help narrow the digital divide with developed regions and promote their development.

[0067] Again, satellite communication has the advantage of long distance, and the increase in communication distance does not significantly increase the cost of communication.

[0068] Finally, satellite communications are highly stable and not affected by natural disasters.

[0069] Communication satellites are classified according to their orbital altitude into low Earth orbit (LEO), medium Earth orbit (MEO), geostationary Earth orbit (GEO), and high elliptical orbit (HEO). Currently, research focuses on LEO and GEO satellites.

[0070] LEO satellites typically operate at altitudes between 500 and 1500 km. Accordingly, their orbital period is approximately 1.5 to 2 hours. For LEO satellites, the signal propagation delay for single-hop communication between users is typically less than 20 milliseconds. The maximum satellite visibility time for LEO satellites is approximately 20 minutes. LEO satellites offer advantages such as short signal propagation distances, low link loss, and low transmit power requirements for user devices.

[0071] GEO satellites orbit at an altitude of 35,786 km. They orbit the Earth every 24 hours. For GEO satellites, the signal propagation delay for single-hop communication between users is typically about 250 milliseconds.

[0072] To ensure satellite coverage and increase the capacity of the entire satellite communication system, satellites typically use multiple beams to cover the ground. Therefore, a single satellite can form dozens or even hundreds of beams to cover the ground. A single satellite beam can cover a ground area with a diameter of tens to hundreds of kilometers.

[0073] Due to its wide coverage, satellite communications systems can reach locations where cellular operators are reluctant to deploy or where deployment is costly, such as extremely rural areas (where terminal equipment is potentially unstable), in the middle of the ocean, and on mountain peaks. Previously, satellite communications and 3GPP cellular technologies were independent. However, with the advent of 5G, satellite communications can be integrated with 3GPP NR, creating the aforementioned NTN communication system. In other words, 5G terminal devices can access both NTN and cellular communication systems.

[0074] In satellite communications, due to the signal-to-noise ratio (SNR) requirements (at the device level) for physical channels from NR NTN to Rel-17, as well as satellite deployment, satellite transmissions can face significant path loss. Furthermore, due to limited transmit power, uplink coverage for devices such as smartphones is severely limited. To address this issue, in Release 18, 3GPP implemented time-domain repetitive transmission of the PUSCH to enhance uplink coverage. However, this enhanced coverage approach significantly reduces resource utilization efficiency.

[0075] Because satellites cover a very large area on Earth, the number of devices covered by satellites is also very large. When multiple devices need to transmit PUSCH, this enhancement method requires more resources for one device to transmit PUSCH, and other devices must wait for resources to be released before they can transmit PUSCH. As a result, using this enhanced coverage method will introduce access delays, or increase access latency.

[0076] Taking the number of PUSCH repetitions as 2 as an example, the above problem is introduced in conjunction with Figure 2. Referring to Figure 2, part of the resources in time slot 1 can be used for the initial transmission of the PUSCH of the terminal device, and part of the resources in time slot 2 can be used for the repeated transmission of the PUSCH of the terminal device. It can be seen that the PUSCH transmission of the terminal device consumes the resources of two time slots. Therefore, the repeated transmission of PUSCH reduces the resource utilization efficiency. In order to avoid this problem, terminal device 1 and terminal device 2 can multiplex the same resources on time slot 1 and time slot 2 by applying orthogonal codes, such as orthogonal cover codes (OCC) on the PUSCH resources, thereby improving resource utilization efficiency.

[0077] In order to support the above-mentioned multiplexing, the relevant technology applies OCC on resource units used for PUSCH transmission, such as different demodulation reference signal (DMRS) resources within the time slot, to achieve channel estimation of terminal device 1 and terminal device 2 in the above-mentioned scenario. Still referring to Figure 2, time slot 1 includes resource 1 and resource 2, time slot 2 includes resource 3 and resource 4, and resources 1 to resource 4 are DMRS resources. Terminal device 1 and terminal device 2 can achieve multiplexing by applying OCC in resource 1 and resource 2. Similarly, terminal device 1 and terminal device 2 can achieve multiplexing by applying OCC in resource 3 and resource 4.

[0078] Improving multiplexing capabilities can help further improve resource utilization efficiency, and since multiplexing capabilities depend on channel estimation capabilities, how to improve channel estimation capabilities in the above scenarios is a problem that needs to be solved.

[0079] In order to solve the above problems, an embodiment of the present application provides a wireless communication method, which helps to improve the channel estimation capability by applying orthogonal codes on the DMRS resources of multiple resource units (i.e., the first method), or interleaving the transmission of DMRS on the DMRS resources of different resource units (i.e., the second method), thereby further improving resource utilization efficiency.

[0080] Figure 3 is a flow chart of a wireless communication method according to an embodiment of the present application. The following describes the method according to an embodiment of the present application from the perspective of interaction between a terminal device and a network device, with reference to Figure 3.

[0081] The method shown in FIG3 may include step S310 .

[0082] In step S310, the terminal device transmits a demodulation reference signal DMRS in the first manner or the second manner, or in other words, the network device receives the DMRS.

[0083] The first method described above may include a terminal device's DMRS being carried on a first resource and a second resource, where the terminal device's DMRS is scrambled using an orthogonal code. In some embodiments, the signal used to scramble the terminal device's DMRS is the DMRS of another terminal device. In other words, the first resource and the second resource carry the DMRS signals of multiple terminal devices, where the DMRS signals of the multiple terminal devices are mutually orthogonal. This allows for multiplexing of the DMRS resources of multiple terminal devices, helping to improve resource utilization and channel estimation capabilities.

[0084] The above-mentioned second method may include the DMRS of the terminal device being carried on the first resource or the second resource. In other words, the terminal device transmits the DMRS on one of the first resource and the second resource, and does not transmit the DMRS of the terminal device on the other resource. In some embodiments, the resources in the first resource and the second resource that are not used to transmit the DMRS of the terminal device can be used to transmit the DMRS of other terminal devices. Transmitting the DMRS of the terminal device by staggered transmission helps to improve the channel estimation capability. In some embodiments, the DMRS of the terminal device can be scrambled by an orthogonal code, such as using the DMRS of other terminal devices to scramble the DMRS of the terminal device, wherein the DMRS of the other terminal devices is orthogonal to the DMRS of the terminal device. That is to say, taking the transmission of the DMRS of the terminal device on the first resource as an example, the DMRS of the terminal device can be scrambled by an orthogonal code on the first resource.

[0085] In some embodiments, the first resource belongs to a first resource unit, and the second resource belongs to a second resource unit. The first resource unit and the second resource unit are different time domain resources, or the first resource unit and the second resource unit are different frequency domain resources.

[0086] For example, a resource unit may refer to any one of a time slot, a physical resource block (PRB), and a sub-PRB. As an example, the first resource unit is a first time slot, and the second resource unit is a second time slot. As another example, the first resource unit is a first PRB, and the second resource unit is a second PRB. As yet another example, the first resource unit is a first sub-PRB, and the second resource unit is a second sub-PRB. It should be noted that the first sub-PRB and the second sub-PRB belong to the same PRB. As an example, the size of the first sub-PRB is the same as the size of the second sub-PRB, or in other words, one PRB can be divided into multiple sub-PRBs on average.

[0087] In some embodiments, the type of resource unit can be determined based on the manner in which the PUSCH is repeatedly transmitted. For example, if the PUSCH is repeatedly transmitted in the time domain, the resource unit is a time slot; if the PUSCH is repeatedly transmitted in the frequency domain, the resource unit can be a PRB or a sub-PRB. As an example, if the first sub-PRB is used to transmit the initial PUSCH and the second sub-PRB is used to transmit the repeatedly transmitted PUSCH, the resource unit can refer to a sub-PRB; if the initial PUSCH and the repeatedly transmitted PUSCH are transmitted on different PRBs, the resource unit can refer to a PRB.

[0088] In an embodiment of the present application, the terminal device can scramble the DMRS through orthogonal codes across resource units, which helps to further improve the channel estimation capability compared to scrambling the DMRS through orthogonal codes within the first resource unit or the second resource unit.

[0089] In some embodiments, a terminal device may receive first information sent by a network device, or the network device may send first information to the terminal device. The first information may be used to determine the size of a sub-PRB. For example, the first information may directly indicate the size of the sub-PRB, such as the number of subcarriers included in the sub-PRB. For another example, the first information may indirectly indicate the size of the sub-PRB. As an example, when multiple sub-PRBs included in a PRB have the same size, the first information may indicate the number of sub-PRBs. The size of the sub-PRB may then be determined based on the size of the PRB and the number of sub-PRBs. A PRB includes 12 subcarriers. If the first information indicates that the number of sub-PRBs is 2, then the size of a sub-PRB is 6 subcarriers; if the first information indicates that the number of sub-PRBs is 4, then the size of a sub-PRB is 3 subcarriers. As another example, the first information may be A, and the size of the sub-PRB may be PRB / A. A here may be understood as a multiplexing factor or a spreading factor.

[0090] In some embodiments, part of the resources in the first resource unit may be used to transmit a first PUSCH, and part of the resources in the second resource unit may be used to transmit a second PUSCH, where the first PUSCH is an initial transmission of a PUSCH or a repeated transmission of a PUSCH, and the second PUSCH is a repeated transmission of a PUSCH.

[0091] For example, the transport block (TB) carried by the first PUSCH and the second PUSCH is the same, the redundancy version (RV) of the first PUSCH and the second PUSCH is the same, and the hybrid automatic repeat request (HARQ) process number associated with the first PUSCH and the second PUSCH is the same. Taking the first PUSCH as the initial transmission of the PUSCH and the second PUSCH as the repeated transmission of the PUSCH as an example, the TB carried by the initial transmission of the PUSCH and the repeated transmission of the PUSCH mentioned here are the same, the RV value of the initial transmission of the PUSCH and the repeated transmission of the PUSCH are the same, and the HARQ process number associated with the initial transmission of the PUSCH and the repeated transmission of the PUSCH is the same. If the first PUSCH and the second PUSCH are both repeated transmissions of the PUSCH, then the two PUSCH repeated transmissions carry the same TB, the two PUSCH repeated transmissions have the same RV, and the associated HARQ process number is the same.

[0092] In some embodiments, the first resource unit and the second resource unit are continuous or discontinuous in the time domain; or, the first resource unit and the second resource unit are continuous or discontinuous in the frequency domain. If the first resource unit and the second resource unit are different time domain resources, then the first resource unit and the second resource unit are continuous or discontinuous in the time domain. As an example, the first resource unit and the second resource unit can be two adjacent time slots or two non-adjacent time slots. If the first resource unit and the second resource unit are different frequency domain resources, then the first resource unit and the second resource unit can be continuous or discontinuous in the frequency domain. As an example, the first resource unit and the second resource unit can be two adjacent PRBs or two non-adjacent PRBs. As another example, the first resource unit and the second resource unit can be two adjacent sub-PRBs or two non-adjacent sub-PRBs.

[0093] In some embodiments, the relative position of the first resource in the first resource unit is the same as the relative position of the second resource in the second resource unit. Still taking Figure 2 as an example, the first resource may refer to resource 1, and the second resource may refer to resource 3 which has the same relative position as resource 1 in time slot 1.

[0094] The following takes the resource unit as a time slot as an example, and introduces the first method and the second method provided in the embodiment of the present application in combination with Figure 2.

[0095] Referring to Figure 2 , the first resource unit may be time slot 1 in Figure 2 , and the second resource unit may be time slot 2 in Figure 2 . The first resource may include at least resource 1 and resource 2, and the second resource may include at least resource 3 and resource 4. It should be understood that the first resource and the second resource may also include other DMRS resources in Figure 2 , and this application does not limit this.

[0096] In related art, if the DMRS is scrambled using an orthogonal code within a resource unit, and the DMRS transmitted in the DMRS resource of time slot 2 can be the same as the DMRS transmitted in the DMRS resource at the same position in time slot 1, then resource 1 and resource 2 can achieve DMRS resource multiplexing for two terminal devices, or in other words, the channel estimation capability is 2. The channel estimation capability mentioned here can refer to the number of terminal devices used for multiplexing.

[0097] In an embodiment of the present application, the DMRS of a terminal device can be transmitted on the DMRS resources in time slot 1 and time slot 2 by a first method, and the DMRS in time slot 1 and time slot 2 can be scrambled by an orthogonal code. In other words, the DMRS of multiple terminal devices can be transmitted on resources 1 to resource 4, and the DMRS of the terminal device can be scrambled by an orthogonal code on resources 1 to resource 4, that is, orthogonal coding is applied on resources 1 to resource 4. From the perspective of DMRS resources, the signals carried in the DMRS resources at the same position of different resource units may be different. In this way, resources 1 to resource 4 can be used for DMRS resource multiplexing of four terminal devices, or the channel estimation capability is increased to 4.

[0098] In an embodiment of the present application, the DMRS of the terminal device can be transmitted on the DMRS resources of time slot 1 (such as resource 1 and resource 2) through the second method, and the DMRS of the terminal device is not transmitted on the DMRS resources of time slot 2 (such as resource 3 and resource 4). In some embodiments, the DMRS of other terminal devices can be transmitted on the DMRS resources of time slot 2. In some embodiments, the DMRS of the terminal device can be scrambled by orthogonal codes on resource 1 and resource 2. Among them, the signal used to scramble the DMRS of the terminal device can be, for example, the DMRS of other terminal devices. In this way, time slot 1 can realize DMRS resource multiplexing of two terminal devices, and time slot 2 can realize DMRS resource multiplexing of another two terminal devices, that is, the DMRS resources of time slot 1 and time slot 2 can support the channel estimation capability of 4 terminal devices.

[0099] It can be seen that, regardless of the first or second approach, the method provided in the embodiments of the present application can improve the channel estimation capability supported by the same resources, thereby helping to improve resource utilization.

[0100] In some embodiments, the terminal device receives the second information sent by the network device, or the network device sends the second information to the terminal device.

[0101] The above-mentioned second information can be used to determine the number of resource units included in the third resource (which can be recorded as N). In some embodiments, the third resource can be a resource for transmitting DMRS using the method provided in the embodiment of the present application. For example, the third resource can be part or all of the resources used for PUSCH initial transmission and repeated transmission. As an example, the number of resource units included in the third resource can be the number of resource units used for PUSCH initial transmission and repeated transmission. As another example, the number of resource units included in the third resource can be less than the number of resource units used for PUSCH initial transmission and repeated transmission.

[0102] In some embodiments, the DMRS transmission mode associated with some or all resource units in the third resource is the first mode or the second mode. In other words, the DMRS is transmitted using the first mode or the second mode in some or all resource units in the third resource. In other words, the third resource includes one or more first resources and one or more second resources. In other words, the third resource includes one or more first resource units and one or more second resource units.

[0103] In some embodiments, the third resource includes one or more resource groups, each of which includes a first resource and a second resource, i.e., the third resource includes multiple first resources and multiple second resources. For example, the first method can be used to transmit DMRS in each resource group, or the second method can be used to transmit DMRS in each resource group. In other words, each resource group includes a first resource unit and a second resource unit, the first resource unit includes the first resource, and the second resource unit includes the second resource.

[0104] In some embodiments, the number of resource units included in each resource group (which can be denoted as M) can be the same, different, or not completely the same. Figure 4 shows an example diagram of resource groups in the third resource. Referring to Figure 4, the third resource includes six time slots (time slot 1-time slot 6), and the third resource can include 3 resource groups, each resource group includes two time slots, that is, M=2. It can be seen that when the number of resource units in each resource group is the same, the method provided by the embodiment of the present application is simple to implement. Figure 5 shows another example diagram of resource groups in the third resource. Referring to Figure 5, the third resource includes six time slots (time slot 1-time slot 6), and the third resource can include 2 resource groups, resource group 1 includes two time slots, that is, M=2, and resource group 2 includes four time slots, that is, M=4. Since terminal devices can usually only be multiplexed with other terminal devices with the same M value, therefore, when the number of resource units in at least some of the resource groups in each resource group is different, the method of the embodiment of the present application can implement multiple types of DMRS resource multiplexing methods, such as helping to improve the flexibility of terminal devices in selecting multiplexing.

[0105] In some embodiments, before transmitting a DMRS, the terminal device may first obtain information associated with the resource groups, such as the number of resource groups and / or the number of resource units included in each resource group.

[0106] For example, the terminal device receives the third information sent by the network device, and the third information is used to determine the number of resource groups included in the third resource. As an example, the third information may directly indicate the number of resource groups included in the third resource. As another example, the third information may indirectly indicate the number of resource groups included in the third resource, such as the third information indicates the number of resource units included in each resource group. In the case where the number of resource units included in each resource group is the same, the number of resource groups included in the third resource can be determined based on the number of resource units included in each resource group. Optionally, the third information may indicate whether the number of resource units included in each resource group is the same or different.

[0107] For another example, the terminal device receives fourth information sent by the network device, and the fourth information is used to determine the number of resource units included in each resource group. As an example, the fourth information may directly indicate the number of resource units included in each resource group. As another example, the fourth information may indirectly indicate the number of resource units included in each resource group, such as when the fourth information includes the number of resource groups included in the third resource. In the case where the resource units included in each resource group are the same, the number of resource units included in each resource group can be determined based on the fourth information. Optionally, the fourth information may indicate whether the number of resource units included in each resource group is the same or different.

[0108] In some embodiments, the third information and the fourth information may be carried in the same message or signaling. In some embodiments, the third information and the fourth information may be the same information. For example, the information includes the number of resource units in each resource group or the number of resource units included in the third resource. If the resource units included in each resource group are the same, the other information may be determined based on one of the number of resource units in each resource group or the number of resource units included in the third resource.

[0109] In some cases, N is divisible by M, that is, all resource units in the third resource can be grouped. In other words, the first or second method is applied to all resources in the third resource to transmit DMRS. In other cases, N is not divisible by M, and the remaining resource units that cannot be grouped do not need to use the method provided in the embodiments of the present application.

[0110] In some embodiments, the terminal device receives fifth information sent by the network device, where the fifth information is used to determine a first resource group, where the first resource group includes the terminal device's DMRS transmission resources. In other words, the terminal device can use the fifth information to determine in which resource group the terminal device's DMRS is transmitted. The first resource group may be one of multiple resource groups included in the third resource group.

[0111] In some embodiments, each resource group includes multiple resource units, multiple PUSCHs associated with the multiple resource units carry the same transport blocks, the multiple PUSCHs have the same redundancy, and the multiple PUSCHs are associated with the same hybrid automatic repeat request process number.

[0112] In some embodiments, the third resource includes a first time slot group and a second time slot group, and the PUSCH is transmitted using a frequency hopping method between the first time slot group and the second time slot group, which helps improve PUSCH reception performance. That is, the PUSCH is transmitted on the frequency domain resource at a first position in one or more time slots included in the first time slot group, and the PUSCH is transmitted on the frequency domain resource at a second position in one or more time slots included in the second time slot group, where the first position and the second position are different (i.e., frequency hopping transmission).

[0113] In some embodiments, the time slots included in the first time slot group and / or the second time slot group can be determined based on the time slots included in the resource group. For example, the number of time slots included in the first time slot group and / or the second time slot group can be the same as the number of time slots included in the resource group. For another example, the time slots included in the first time slot group and / or the second time slot group are the same as the time slots included in the resource group, as shown in Figure 6. Referring to Figure 6, the third resource includes time slots 1 to time slots 8, M=2, that is, the third resource includes resource group 1 to resource group 4. The first time slot group and the second time slot group can be any two adjacent resource groups in the third resource, such as the first time slot can be resource group 1 and the second time slot can be resource group 2, or the first time slot group can be resource group 3 and the second time slot group can be resource group 4.

[0114] In other words, PUSCH can be transmitted using frequency hopping between adjacent resource groups, while PUSCH can be transmitted without frequency hopping between the first resource unit and the second resource unit in the same resource group. This ensures the orthogonality of the scrambled orthogonal codes used for the PUSCH transmitted in the first resource unit and the PUSCH transmitted in the second resource unit, thereby helping to improve both PUSCH reception performance and channel estimation capabilities.

[0115] In some embodiments, the time slots included in the first time slot group and / or the second time slot group can be determined based on the time slots included in the resource group and the time slots associated with the DMRS bundle. For example, the number of time slots included in the first time slot group and / or the second time slot group can be determined based on the number of time slots included in the resource group and the number of time slots associated with the DMRS bundle, such as based on the least common multiple of the number of time slots included in the resource group and the number of time slots associated with the DMRS bundle.

[0116] Referring to Figure 7 , the third resource group includes at least time slots 1 to 8, with M = 2 (i.e., each resource group includes 2 time slots); the size of the DMRS bundle is 3, i.e., the number of time slots associated with the DMRS bundle is 3. In this case, the number of time slots included in the first time slot group can be, for example, the least common multiple of the number of time slots included in the resource group and the number of time slots associated with the DMRS bundle, i.e., the least common multiple of 2 and 3. In other words, the first time slot group includes 6 time slots, such as time slots 1 to 6, and the second time slot group includes at least time slots 7 and 8 (other time slots are not shown in Figure 7 ).

[0117] It can be seen that the above example is introduced by taking the time slot at the start position of DMRS bundling as the same as the first time slot of the resource group. In order to facilitate the implementation of the method of the embodiment of the present application while adopting DMRS bundling, in some embodiments, when grouping the third resource, the time slot associated with the DMRS bundling can be considered, such as the time slot at the start position of DMRS bundling can be used as the first time slot of the resource group. In other words, when performing DMRS bundling, the grouping of the resource group can be considered, such as using the first time slot in the resource group as the time slot at the start position of DMRS bundling.

[0118] The first time slot group and the second time slot group are determined based on the least common multiple of the number of time slots included in the resource group and the number of time slots associated with the DMRS bundle, which can ensure PUSCH aligned frequency hopping within the same resource group and the same DMRS bundle.

[0119] As previously mentioned, the terminal device's DMRS transmission mode includes a first mode and a second mode. In some embodiments, the terminal device receives sixth information sent by the network device, and the sixth information is used to determine whether the terminal device's DMRS transmission mode is the first mode or the second mode. In other words, based on the sixth information, the terminal device can determine which mode to use for DMRS transmission.

[0120] For example, the sixth information may indicate the first mode and the second mode respectively through different bit values. For another example, a default DMRS transmission mode may be configured. If the sixth information is not configured, the default DMRS transmission mode is used. If the sixth information is configured, the DMRS transmission mode is determined according to the sixth information.

[0121] In some embodiments, the terminal device receives seventh information sent by the network device, where the seventh information is used to determine a resource unit, from the first resource unit and the second resource unit, associated with DMRS transmission of the terminal device. For example, if the DMRS transmission mode of the terminal device is the second mode, then based on the seventh information, the transmission resource used for transmitting the DMRS of the terminal device can be determined, that is, whether the terminal device transmits the DMRS on the first resource or the second resource.

[0122] In some embodiments, the terminal device receives the eighth information sent by the network device, and the eighth information is used to determine the orthogonal code, wherein the orthogonal code acts on the DMRS carried by the first resource and / or the second resource. For example, the eighth information can be index information associated with the orthogonal code, and the orthogonal code acting on the DMRS carried by the first resource and / or the second resource can be determined based on the index information. For another example, based on the eighth information, the terminal device can determine the orthogonality of its DMRS and the scrambled signal. Optionally, the association relationship between the index information and the orthogonal code can be predefined or preconfigured.

[0123] The orthogonal codes mentioned in the embodiments of the present application can be various types of orthogonal codes, as long as the DMRS of the terminal device and the scrambled signal are orthogonal to each other. In some embodiments, the first method includes carrying the DMRS of the terminal device on the first resource and the second resource, and the DMRS of the terminal device is scrambled by an orthogonal cover code OCC.

[0124] In some embodiments, the first to eighth information mentioned above may be carried in an RRC message and / or downlink control information (DCI). For example, for a configured authorized PUSCH, the second information and the fourth information may be carried in the RRC configuration for configuring the authorized PUSCH resources. For another example, for a type 2 configured grant (CG) PUSCH, the second information and the fourth information may be carried in the DCI for activating the CG configuration. For another example, the seventh information may be provided in the DCI for scheduling PUSCH transmission, or may be provided in the RRC signaling for the PUSCH configuration.

[0125] It should be noted that the above text introduces the method of the embodiment of the present application using two resource units, but the method can also be applied to 4 resource units, or more resource units, and the present application does not limit this.

[0126] For ease of understanding, the method provided in the embodiment of the present application is introduced below in conjunction with Figures 2 and 8 to 10.

[0127] Example 1

[0128] In this embodiment, FIG. 2 is a specific example of the first method mentioned above, and FIG. 8 and FIG. 9 are specific examples of the second method mentioned above.

[0129] Referring to Figure 2 , in the related art, an OCC code can be applied to DMRS resources 1 and 2 in time slot 1, while DMRS resources 3 and 4 in time slot 2 use the same DMRS transmission method as the DMRS resources at the same locations in time slot 1. That is, DMRS resource 3 in time slot 2 uses the same DMRS transmission method as DMRS resource 1 in time slot 1, and DMRS resource 4 in time slot 2 uses the same DMRS transmission method as DMRS resource 2 in time slot 1. For example, UE1 applies OCC code (+1, +1) to DMRS resources 1 and 2 in time slot 1; UE2 applies OCC code (+1, -1) to DMRS resources 1 and 2; UE1 applies OCC code (+1, +1) to DMRS resources 3 and 4 in time slot 2; and UE2 applies OCC code (+1, -1) to DMRS resources 3 and 4. It can be seen that the method using the related art can support the channel estimation capabilities of two terminal devices.

[0130] In an embodiment of the present application, by applying OCC codes to DMRS resources 1 and 2 in time slot 1 and resources 3 and 4 in time slot 2, that is, applying cross-slot OCC codes, the channel estimation capability can be improved. Therefore, resources 1 to 4 can support the channel estimation capability of 4 UEs. For example, UE1 applies OCC codes (+1, +1, +1, +1) on DMRS resources 1, 2, 3, 4; UE2 applies OCC codes (+1, -1, +1, -1) on DMRS resources 1, 2, 3, 4; UE3 applies OCC codes (+1, +1, -1, -1) on DMRS resources 1, 2, 3, 4; and finally, UE4 applies OCC codes (+1, -1, -1, +1) on DMRS resources 1, 2, 3, 4. Applying OCC codes across time slots 1 and 2 can increase the UE multiplexing channel estimation capability to 4, which is twice that of the traditional system. It is worth noting that when we apply the OCC code on more time slots (for example, 4 time slots), more channel estimation capability gain can be obtained.

[0131] Referring to Figure 8 , the terminal device repeatedly transmits PUSCH in time slots 1 and 2, transmits DMRS in time slot 1, and does not transmit DMRS in time slot 2. For example, UE1 can transmit PUSCH in both time slots, but UE1 only transmits DMRS in time slot 1 and does not transmit DMRS in time slot 2. Furthermore, the DMRS of UE1 and UE2 can be code-division multiplexed on DMRS resource 1 and DMRS resource 2 in time slot 1.

[0132] Optionally, time slot 2 can be used for other terminal devices to transmit DMRS (see Figure 9). UE3 and UE4 can transmit DMRS in a code division multiplexed manner on resources 3 and 4 in time slot 2. Based on this, resources 1 to 4 can support the channel estimation capabilities of four terminal devices. Furthermore, before a terminal device transmits DMRS, the network device can notify the terminal device of the time slot in which to transmit DMRS.

[0133] Example 2

[0134] This embodiment takes repeated transmission of PUSCH in sub-PRBs as an example to introduce the first and second approaches mentioned above.

[0135] As shown in Figure 10, time slot 1 includes at least sub-PRB1 and sub-PRB2, and time slot 2 includes at least sub-PRB3 and sub-PRB4. Sub-PRB1 and sub-PRB2 can be used for initial PUSCH transmission, respectively, while sub-PRB3 and sub-PRB4 can be used for repeated PUSCH transmission. Sub-PRB1 and sub-PRB2 can be one of the resource groups mentioned above, while sub-PRB3 and sub-PRB4 can be another resource group.

[0136] The following description will be made by taking sub-PRB1 and sub-PRB2 as an example, wherein sub-PRB1 includes DMRS resources 1 and 2, and sub-PRB2 includes DMRS resources 3 and 4.

[0137] Referring to Figure 10 , if the first DMRS transmission method is used, the DMRS for UE1 can be transmitted in resources 1 through 4, and OCC can be applied, thereby improving channel estimation capabilities. For example, the DMRSs for UE1 through UE4 can be code division multiplexed in resources 1 through 4. In this case, resources 1 through 4 can support channel estimation capabilities for four UEs.

[0138] Continuing to refer to Figure 10, if the second method is used to transmit DMRS, then the DMRS of UE1 can be transmitted in resource 1 and resource 2, and the DMRS of UE1 is not transmitted in resource 3 and resource 4. Furthermore, the DMRS of UE1 can be code-division multiplexed with the DMRS of UE2 in resource 1 and resource 2, thereby improving the channel estimation capability. Optionally, resources 3 and resources 4 can be used for other UEs to transmit DMRS. For example, the DMRS of UE3 can be code-division multiplexed with the DMRS of UE4 in resource 3 and resource 4. In this way, resources 1 to resource 4 can support the channel estimation capability of 4 UEs. In addition, before the terminal device transmits the DMRS, the network device can notify the terminal device in which sub-PRB to transmit the DMRS.

[0139] The DMRS transmission method in sub-PRB3 and sub-PRB4 is similar to the DMRS transmission method in sub-PRB1 and sub-PRB2, and is not repeated here for the sake of brevity.

[0140] The method embodiments of the present application are described in detail above, and the device embodiments of the present application are described in detail below. It should be understood that the description of the method embodiments corresponds to the description of the device embodiments, so for parts not described in detail, reference can be made to the above method embodiments.

[0141] FIG11 is a schematic structural diagram of a terminal device provided in an embodiment of the present application. The terminal device 1100 includes: a transmission unit 1110 .

[0142] The transmission unit 1110 is used to transmit a demodulation reference signal DMRS in a first manner or a second manner, wherein the first manner includes the DMRS of the terminal device being carried on a first resource and a second resource, and the DMRS of the terminal device being scrambled by an orthogonal code, and the second manner includes the DMRS of the terminal device being carried on the first resource or the second resource.

[0143] In some embodiments, the first resource belongs to a first resource unit, the second resource belongs to a second resource unit, the first resource unit and the second resource unit are different time domain resources, or the first resource unit and the second resource unit are different frequency domain resources.

[0144] In some embodiments, part of the resources in the first resource unit is used to transmit a first physical uplink shared channel PUSCH, and part of the resources in the second resource unit is used to transmit a second PUSCH; wherein, the first PUSCH is an initial transmission of PUSCH or a repeated transmission of PUSCH, and the second PUSCH is a repeated transmission of PUSCH.

[0145] In some embodiments, the transport blocks carried by the first PUSCH and the second PUSCH are the same, the redundancy of the first PUSCH and the second PUSCH are the same, and the hybrid automatic repeat request process numbers associated with the first PUSCH and the second PUSCH are the same.

[0146] In some embodiments, the first resource unit and the second resource unit are continuous or discontinuous in the time domain; or, the first resource unit and the second resource unit are continuous or discontinuous in the frequency domain.

[0147] In some embodiments, a relative position of the first resource in the first resource unit is the same as a relative position of the second resource in the second resource unit.

[0148] In some embodiments, the resource unit is any one of a time slot, a physical resource block PRB, and a sub-PRB.

[0149] In some embodiments, when the resource unit is a sub-PRB, the first resource unit and the second resource unit belong to the same PRB.

[0150] In some embodiments, if the first resource unit and the second resource unit are different sub-PRBs, the device further includes: a first receiving unit, configured to receive first information sent by a network device, where the first information is used to determine the size of the sub-PRB.

[0151] In some embodiments, the device also includes: a second receiving unit, used to receive second information sent by the network device, the second information is used to determine the number of resource units included in the third resource, and the DMRS transmission mode associated with some or all of the resource units in the third resource is the first mode or the second mode; wherein the resource unit is any one of a time slot, a PRB and a sub-PRB.

[0152] In some embodiments, the third resource includes one or more resource groups, each of the resource groups includes the first resource and the second resource, and the first method is applied to transmit DMRS in each of the resource groups, or the second method is applied to transmit DMRS in each of the resource groups.

[0153] In some embodiments, the device further includes: a third receiving unit, configured to receive third information sent by the network device, wherein the third information is used to determine the number of the resource groups included in the third resource.

[0154] In some embodiments, the device further includes: a fourth receiving unit, configured to receive fourth information sent by the network device, wherein the fourth information is used to determine the number of the resource units included in each of the resource groups.

[0155] In some embodiments, the number of resource units included in the one or more resource groups is not exactly the same.

[0156] In some embodiments, the one or more resource groups include a first resource group, and the device further includes: a fifth receiving unit for receiving fifth information sent by the network device, the fifth information being used to determine the first resource group, and the first resource group includes the DMRS transmission resources of the terminal device.

[0157] In some embodiments, the third resource includes a first time slot group and a second time slot group, and the PUSCH is transmitted between the first time slot group and the second time slot group using a frequency hopping manner; wherein, the time slots included in the first time slot group and / or the second time slot group are determined based on the time slots included in the resource group and / or the time slots associated with the DMRS bundle.

[0158] In some embodiments, the device further includes: a sixth receiving unit, configured to receive sixth information sent by a network device, wherein the sixth information is used to determine whether the transmission mode of the DMRS of the terminal device is the first mode or the second mode.

[0159] In some embodiments, if the terminal device transmits DMRS through the second method, the device also includes: a seventh receiving unit, used to receive seventh information sent by the network device, and the seventh information is used to determine the resource unit in the first resource unit and the second resource unit that is associated with the DMRS transmission of the terminal device.

[0160] In some embodiments, the device further includes: an eighth receiving unit, configured to receive eighth information sent by a network device, wherein the eighth information is used to determine an orthogonal code, wherein the orthogonal code acts on a DMRS carried by the first resource and / or the second resource.

[0161] In some embodiments, the first manner includes the DMRS of the terminal device being carried on the first resource and the second resource, and the DMRS of the terminal device being scrambled by an orthogonal cover code OCC.

[0162] FIG12 is a schematic structural diagram of a network device provided in an embodiment of the present application. The network device 1200 may include a receiving unit 1210 .

[0163] The receiving unit 1210 is used to receive a demodulation reference signal DMRS sent by a terminal device, where the DMRS is transmitted in a first manner or a second manner. The first manner includes the DMRS of the terminal device being carried on a first resource and a second resource, and the DMRS of the terminal device being scrambled by an orthogonal code. The second manner includes the DMRS of the terminal device being carried on the first resource or the second resource.

[0164] In some embodiments, the first resource belongs to a first resource unit, the second resource belongs to a second resource unit, the first resource unit and the second resource unit are different time domain resources, or the first resource unit and the second resource unit are different frequency domain resources.

[0165] In some embodiments, part of the resources in the first resource unit is used to transmit a first physical uplink shared channel PUSCH, and part of the resources in the second resource unit is used to transmit a second PUSCH; wherein, the first PUSCH is an initial transmission of PUSCH or a repeated transmission of PUSCH, and the second PUSCH is a repeated transmission of PUSCH.

[0166] In some embodiments, the transport blocks carried by the first PUSCH and the second PUSCH are the same, the redundancy of the first PUSCH and the second PUSCH are the same, and the hybrid automatic repeat request process numbers associated with the first PUSCH and the second PUSCH are the same.

[0167] In some embodiments, the first resource unit and the second resource unit are continuous or discontinuous in the time domain; or, the first resource unit and the second resource unit are continuous or discontinuous in the frequency domain.

[0168] In some embodiments, a relative position of the first resource in the first resource unit is the same as a relative position of the second resource in the second resource unit.

[0169] In some embodiments, the resource unit is any one of a time slot, a physical resource block PRB, and a sub-PRB.

[0170] In some embodiments, when the resource unit is a sub-PRB, the first resource unit and the second resource unit belong to the same PRB.

[0171] In some embodiments, if the first resource unit and the second resource unit are different sub-PRBs, the device further includes: a first sending unit, configured to send first information to the terminal device, wherein the first information is used to determine the size of the sub-PRB.

[0172] In some embodiments, the device also includes: a second sending unit, used to send second information to the terminal device, the second information is used to determine the number of resource units included in the third resource, and the DMRS transmission mode associated with some or all of the resource units in the third resource is the first mode or the second mode; wherein the resource unit is any one of a time slot, a PRB and a sub-PRB.

[0173] In some embodiments, the third resource includes one or more resource groups, each of the resource groups includes the first resource and the second resource, and the first method is applied to transmit DMRS in each of the resource groups, or the second method is applied to transmit DMRS in each of the resource groups.

[0174] In some embodiments, the device further includes: a third sending unit, configured to send third information to the terminal device, wherein the third information is used to determine the number of the resource groups included in the third resource.

[0175] In some embodiments, the device further includes: a fourth sending unit, configured to send fourth information to the terminal device, wherein the fourth information is used to determine the number of the resource units included in each of the resource groups.

[0176] In some embodiments, the number of resource units included in the one or more resource groups is not exactly the same.

[0177] In some embodiments, the one or more resource groups include a first resource group, and the device further includes: a fifth sending unit, used to send fifth information to the terminal device, the fifth information is used to determine the first resource group, and the first resource group includes the DMRS transmission resource of the terminal device.

[0178] In some embodiments, the third resource includes a first time slot group and a second time slot group, and the PUSCH is transmitted between the first time slot group and the second time slot group using a frequency hopping manner; wherein, the time slots included in the first time slot group and / or the second time slot group are determined based on the time slots included in the resource group and / or the time slots associated with the DMRS bundle.

[0179] In some embodiments, the device further includes: a sixth sending unit, configured to send sixth information to the terminal device, wherein the sixth information is used to determine whether the transmission mode of the DMRS of the terminal device is the first mode or the second mode.

[0180] In some embodiments, if the terminal device transmits DMRS through the second method, the device also includes: a seventh sending unit, used to send seventh information to the terminal device, and the seventh information is used to determine the resource unit in the first resource unit and the second resource unit that is associated with the DMRS transmission of the terminal device.

[0181] In some embodiments, the device further includes: an eighth sending unit, configured to send eighth information to the terminal device, wherein the eighth information is used to determine an orthogonal code, wherein the orthogonal code acts on the DMRS carried by the first resource and / or the second resource.

[0182] In some embodiments, the first manner includes the DMRS of the terminal device being carried on the first resource and the second resource, and the DMRS of the terminal device being scrambled by an orthogonal cover code OCC.

[0183] In an optional embodiment, the first to eighth transmitting units may be the same or different; the first to eighth receiving units may be the same or different. For example, the first to eighth transmitting units and the first to eighth receiving units may be transceivers 1330, and the communication device 1300 may further include a processor 1310 and a memory 1320, as shown in FIG13 .

[0184] Figure 13 is a schematic block diagram of a communication device according to an embodiment of the present application. The dashed lines in Figure 13 indicate that the unit or module is optional. Apparatus 1300 may be used to implement the method described in the above method embodiment. Apparatus 1300 may be a chip, a terminal device, or a network device.

[0185] The device 1300 may include one or more processors 1310. The processor 1310 may support the device 1300 to implement the method described in the method embodiment above. The processor 1310 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may be another general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

[0186] The apparatus 1300 may further include one or more memories 1320. The memories 1320 store programs that can be executed by the processor 1310, causing the processor 1310 to perform the methods described in the above method embodiments. The memories 1320 may be independent of the processor 1310 or integrated into the processor 1310.

[0187] The apparatus 1300 may further include a transceiver 1330. The processor 1310 may communicate with other devices or chips via the transceiver 1330. For example, the processor 1310 may transmit and receive data with other devices or chips via the transceiver 1330.

[0188] The present application also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to a terminal or network device provided in the present application, and the program enables a computer to execute the method performed by the terminal or network device in each embodiment of the present application.

[0189] The present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to a terminal or network device provided in the present application, and the program causes a computer to execute the method performed by the terminal or network device in each embodiment of the present application.

[0190] The embodiments of the present application also provide a computer program. The computer program can be applied to the terminal or network device provided in the embodiments of the present application, and the computer program enables a computer to execute the method performed by the terminal or network device in each embodiment of the present application.

[0191] It should be understood that the terms "system" and "network" in this application can be used interchangeably. In addition, the terms used in this application are only used to explain the specific embodiments of this application and are not intended to limit this application. The terms "first", "second", "third", and "fourth" in the specification and claims of this application and the accompanying drawings are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0192] In the embodiments of this application, the term "indication" may refer to a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" may refer to a direct indication of B, e.g., B can obtain information through A; it may refer to an indirect indication of B, e.g., A indicates C, e.g., B can obtain information through C; or it may refer to an association between A and B.

[0193] In the embodiment of the present application, "B corresponding to A" means that B is associated with A and B can be determined based on A. However, it should be understood that determining B based on A does not mean determining B based solely on A, but B can also be determined based on A and / or other information.

[0194] In the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and indication, configuration and configuration, etc.

[0195] In the embodiments of the present application, "pre-definition" or "pre-configuration" may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., a terminal device and a network device). The present application does not limit the specific implementation method. For example, pre-definition may refer to information defined in a protocol.

[0196] In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communications field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.

[0197] In the embodiments of this application, the term "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0198] In the embodiments of this application, the term "include" can refer to direct inclusion or indirect inclusion. Alternatively, the term "include" in the embodiments of this application can be replaced with "indicates" or "is used to determine." For example, "A includes B" can be replaced with "A indicates B" or "A is used to determine B."

[0199] In various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0200] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0201] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0202] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0203] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital versatile disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0204] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A wireless communication method, characterized in that, Including: The terminal device transmits demodulation reference signals (DMRS) in a first manner or a second manner. The first manner includes that the DMRS of the terminal device is carried on a first resource and a second resource, and the DMRS of the terminal device is scrambled by an orthogonal code. The second manner includes that the DMRS of the terminal device is carried on the first resource or the second resource.

2. The method according to claim 1, characterized in that, The first resource belongs to a first resource unit, and the second resource belongs to a second resource unit. The first resource unit and the second resource unit are different time-domain resources, or the first resource unit and the second resource unit are different frequency-domain resources.

3. The method according to claim 2, wherein Part of the resources in the first resource unit are used to transmit a first physical uplink shared channel (PUSCH), and part of the resources in the second resource unit are used to transmit a second PUSCH. Wherein, the first PUSCH is an initial transmission of the PUSCH or a repeated transmission of the PUSCH, and the second PUSCH is a repeated transmission of the PUSCH.

4. The method according to claim 3, wherein The transport blocks carried by the first PUSCH and the second PUSCH are the same, the redundancy of the first PUSCH and the second PUSCH is the same, and the hybrid automatic repeat request process numbers associated with the first PUSCH and the second PUSCH are the same.

5. The method according to any one of claims 2-4, characterized in that, The first resource unit and the second resource unit are continuous or discontinuous in the time domain; or the first resource unit and the second resource unit are continuous or discontinuous in the frequency domain.

6. The method according to any one of claims 2-5, characterized in that, The relative position of the first resource in the first resource unit is the same as the relative position of the second resource in the second resource unit.

7. The method according to any one of claims 2-6, characterized in that, The resource unit is any one of a time slot, a physical resource block (PRB), and a sub-PRB.

8. The method according to claim 7, wherein When the resource unit is a sub-PRB, the first resource unit and the second resource unit belong to the same PRB.

9. The method according to claim 7 or 8, characterized in that, If the first resource unit and the second resource unit are different sub-PRBs, the method further includes: The terminal device receives first information sent by the network device, and the first information is used to determine the size of the sub-PRB.

10. The method according to any one of claims 1-9, characterized in that, The method further includes: The terminal device receives second information sent by the network device, and the second information is used to determine the number of resource units included in a third resource. The DMRS transmission manner associated with some or all of the resource units in the third resource is the first manner or the second manner; wherein, the resource unit is any one of a time slot, a PRB, and a sub-PRB.

11. The method according to claim 10, wherein The third resource includes one or more resource groups, each resource group includes the first resource and the second resource, and the first manner is respectively applied to transmit DMRS in each resource group, or the second manner is respectively applied to transmit DMRS in each resource group.

12. The method according to claim 11, wherein The method further includes: The terminal device receives third information sent by the network device, and the third information is used to determine the number of resource groups included in the third resource.

13. The method according to claim 11 or 12, characterized in that, The method further includes: The terminal device receives fourth information sent by the network device, where the fourth information is used to determine the number of resource units included in each of the resource groups.

14. The method according to any one of claims 11-13, characterized in that, The number of resource units included in the one or more resource groups is not completely the same.

15. The method according to any one of claims 11-14, characterized in that, The one or more resource groups include a first resource group, and the method further includes: The terminal device receives fifth information sent by the network device, where the fifth information is used to determine the first resource group, and the first resource group includes the DMRS transmission resources of the terminal device.

16. The method according to any one of claims 11-15, characterized in that, The third resource includes a first time slot group and a second time slot group, and PUSCH is transmitted in a frequency hopping manner between the first time slot group and the second time slot group; Wherein, the time slots included in the first time slot group and / or the second time slot group are determined based on the time slots included in the resource group and / or the time slots associated with DMRS bundling.

17. The method according to any one of claims 1-16, characterized in that, The method further includes: The terminal device receives sixth information sent by the network device, where the sixth information is used to determine the transmission mode of the DMRS of the terminal device to be the first mode or the second mode. If the terminal device transmits DMRS through the second mode, the method further includes:

18. The method according to any one of claims 2-17, characterized in that, The terminal device receives seventh information sent by the network device, where the seventh information is used to determine the resource units associated with the DMRS transmission of the terminal device among the first resource unit and the second resource unit. The method further includes:

19. The method according to any one of claims 1-18, characterized in that, The terminal device receives eighth information sent by the network device, where the eighth information is used to determine an orthogonal code, and the orthogonal code acts on the DMRS carried by the first resource and / or the second resource. The first mode includes that the DMRS of the terminal device is carried on the first resource and the second resource, and the DMRS of the terminal device is scrambled by an orthogonal cover code OCC.

20. The method according to any one of claims 1-19, characterized in that, including:

21. A wireless communication method, characterized in that, The network device receives a demodulation reference signal DMRS sent by the terminal device, where the DMRS is transmitted through the first mode or the second mode. The first mode includes that the DMRS of the terminal device is carried on the first resource and the second resource, and the DMRS of the terminal device is scrambled by an orthogonal code. The second mode includes that the DMRS of the terminal device is carried on the first resource or the second resource. The first resource belongs to a first resource unit, the second resource belongs to a second resource unit, the first resource unit and the second resource unit are different time domain resources, or the first resource unit and the second resource unit are different frequency domain resources.

22. The method according to claim 21, wherein Part of the resources in the first resource unit are used to transmit a first physical uplink shared channel PUSCH, and part of the resources in the second resource unit are used to transmit a second PUSCH; 23. The method according to claim 22, wherein Wherein, the first PUSCH is an initial transmission of PUSCH or a repeated transmission of PUSCH, and the second PUSCH is a repeated transmission of PUSCH. ​ 24. The method according to claim 23, wherein The transport blocks carried by the first PUSCH and the second PUSCH are the same, the redundancy levels of the first PUSCH and the second PUSCH are the same, and the hybrid automatic repeat request process numbers associated with the first PUSCH and the second PUSCH are the same.

25. The method according to any one of claims 22-24, characterized in that, The first resource element and the second resource element are consecutive or non - consecutive in the time domain; or, the first resource element and the second resource element are consecutive or non - consecutive in the frequency domain.

26. The method according to any one of claims 22-25, characterized in that The relative position of the first resource in the first resource element is the same as the relative position of the second resource in the second resource element.

27. The method according to any one of claims 22-26, characterized in that, The resource element is any one of a time slot, a physical resource block (PRB), and a sub - PRB.

28. The method according to claim 27, wherein When the resource element is a sub - PRB, the first resource element and the second resource element belong to the same PRB.

29. The method according to claim 27 or 28, characterized in that, If the first resource element and the second resource element are different sub - PRBs, the method further includes: The network device sends first information to the terminal device, and the first information is used to determine the size of the sub - PRB.

30. The method according to any one of claims 21-29, characterized in that, The method further includes: The network device sends second information to the terminal device, and the second information is used to determine the number of resource elements included in a third resource, and the DMRS transmission mode associated with some or all of the resource elements in the third resource is the first mode or the second mode; wherein, the resource element is any one of a time slot, a PRB, and a sub - PRB.

31. The method according to claim 30, wherein The third resource includes one or more resource groups, each resource group includes the first resource and the second resource, and the first mode of DMRS transmission is applied to each resource group respectively, or the second mode of DMRS transmission is applied to each resource group respectively.

32. The method according to claim 31, wherein The method further includes: The network device sends third information to the terminal device, and the third information is used to determine the number of resource groups included in the third resource.

33. The method according to claim 31 or 32, characterized in that, The method further includes: The network device sends fourth information to the terminal device, and the fourth information is used to determine the number of resource elements included in each resource group.

34. The method according to any one of claims 31-33, characterized in that, The number of resource elements included in the one or more resource groups is not completely the same.

35. The method according to any one of claims 31-34, characterized in that, The one or more resource groups include a first resource group, and the method further includes: The network device sends fifth information to the terminal device, and the fifth information is used to determine the first resource group, and the first resource group includes the DMRS transmission resources of the terminal device.

36. The method according to any one of claims 31 - 35, characterized in that, The third resource includes a first time - slot group and a second time - slot group, and PUSCH is transmitted in a frequency - hopping manner between the first time - slot group and the second time - slot group; Wherein, the time slots included in the first time - slot group and / or the second time - slot group are determined based on the time slots included in the resource group and / or the time slots associated with DMRS bundling.

37. The method according to any one of claims 21-36, characterized in that, The method further includes: The network device sends sixth information to the terminal device, and the sixth information is used to determine that the DMRS transmission mode of the terminal device is the first mode or the second mode.

38. The method according to any one of claims 22-37, characterized in that, If the terminal device transmits DMRS through the second method, the method further includes: The network device sends seventh information to the terminal device, where the seventh information is used to determine the resource unit associated with the DMRS transmission of the terminal device among the first resource unit and the second resource unit.

39. The method according to any one of claims 21-38, characterized in that, The method further includes: The network device sends eighth information to the terminal device, where the eighth information is used to determine an orthogonal code, and the orthogonal code acts on the DMRS carried by the first resource and / or the second resource.

40. The method according to any one of claims 21-39, characterized in that, The first method includes that the DMRS of the terminal device is carried by the first resource and the second resource, and the DMRS of the terminal device is scrambled by an orthogonal cover code (OCC).

41. A terminal device, characterized in that, Including: A transmission unit, configured to transmit a demodulation reference signal (DMRS) through a first method or a second method. The first method includes that the DMRS of the terminal device is carried by a first resource and a second resource, and the DMRS of the terminal device is scrambled by an orthogonal code. The second method includes that the DMRS of the terminal device is carried by the first resource or the second resource.

42. The apparatus according to claim 41, wherein The first resource belongs to a first resource unit, the second resource belongs to a second resource unit, the first resource unit and the second resource unit are different time-domain resources, or the first resource unit and the second resource unit are different frequency-domain resources.

43. The apparatus according to claim 42, wherein, Part of the resources in the first resource unit are used to transmit a first physical uplink shared channel (PUSCH), and part of the resources in the second resource unit are used to transmit a second PUSCH; Wherein, the first PUSCH is an initial transmission of the PUSCH or a repeated transmission of the PUSCH, and the second PUSCH is a repeated transmission of the PUSCH.

44. The device according to claim 43, characterized in that, The transport blocks carried by the first PUSCH and the second PUSCH are the same, the redundancy of the first PUSCH and the second PUSCH is the same, and the hybrid automatic repeat request process numbers associated with the first PUSCH and the second PUSCH are the same.

45. The device according to any one of claims 42 - 44, characterized in that, The first resource unit and the second resource unit are continuous or discontinuous in the time domain; or the first resource unit and the second resource unit are continuous or discontinuous in the frequency domain.

46. The apparatus according to any one of claims 42 - 45, characterized in that, The relative position of the first resource in the first resource unit is the same as the relative position of the second resource in the second resource unit.

47. The device according to any one of claims 42-46, characterized in that, The resource unit is any one of a time slot, a physical resource block (PRB), and a sub-PRB.

48. The apparatus according to claim 47, wherein, When the resource unit is a sub-PRB, the first resource unit and the second resource unit belong to the same PRB.

49. The device according to claim 47 or 48, characterized in that, If the first resource unit and the second resource unit are different sub-PRBs, the device further includes: A first receiving unit, configured to receive first information sent by a network device, where the first information is used to determine the size of the sub-PRB. The device according to any one of claims 41 to 49, characterized in that, The device further includes: A second receiving unit, configured to receive second information sent by a network device, where the second information is used to determine the number of resource units included in a third resource, and the DMRS transmission mode associated with some or all of the resource units in the third resource is the first mode or the second mode; where the resource unit is any one of a time slot, a PRB, and a sub-PRB.

51. The device according to claim 50, characterized in that, The third resource includes one or more resource groups, each resource group includes the first resource and the second resource, and the first mode is respectively applied to transmit DMRS in each resource group, or the second mode is respectively applied to transmit DMRS in each resource group.

52. The apparatus according to claim 51, wherein The device further includes: A third receiving unit, configured to receive third information sent by the network device, where the third information is used to determine the number of resource groups included in the third resource included.

53. The device according to claim 51 or 52, characterized in that, The device further includes: A fourth receiving unit, configured to receive fourth information sent by the network device, where the fourth information is used to determine the number of resource units included in each resource group.

54. The device according to any one of claims 51 to 53, characterized in that, The number of resource units included in the one or more resource groups is not completely the same.

55. The device according to any one of claims 51 - 54, characterized in that, The one or more resource groups include a first resource group, and the device further includes: A fifth receiving unit, configured to receive fifth information sent by the network device, where the fifth information is used to determine the first resource group, and the first resource group includes the DMRS transmission resources of the terminal device.

56. The device according to any one of claims 51 - 55, characterized in that, The third resource includes a first time slot group and a second time slot group, and PUSCH is transmitted in a frequency hopping manner between the first time slot group and the second time slot group; wherein, the time slots included in the first time slot group and / or the second time slot group are determined based on the time slots included in the resource group and / or the time slots associated with DMRS bundling.

57. The device according to any one of claims 41-56, characterized in that, The device further includes: A sixth receiving unit, configured to receive sixth information sent by the network device, where the sixth information is used to determine that the DMRS transmission mode of the terminal device is the first mode or the second mode.

58. The device according to any one of claims 42 - 57, characterized in that, If the terminal device transmits DMRS through the second mode, the device further includes: A seventh receiving unit, configured to receive seventh information sent by the network device, where the seventh information is used to determine the resource units associated with the DMRS transmission of the terminal device in the first resource unit and the second resource unit.

59. The device according to any one of claims 41 - 58, characterized in that, The device further includes: An eighth receiving unit, configured to receive eighth information sent by the network device, where the eighth information is used to determine an orthogonal code, and the orthogonal code acts on the DMRS carried by the first resource and / or the second resource.

60. The device according to any one of claims 41 - 59, characterized in that, The first mode includes that the DMRS of the terminal device is carried on the first resource and the second resource, and the DMRS of the terminal device is scrambled by an orthogonal cover code OCC.

61. A network device, characterized in that, including: A receiving unit, configured to receive a demodulation reference signal DMRS sent by a terminal device, where the DMRS is transmitted in a first manner or a second manner, the first manner includes that the DMRS of the terminal device is carried on a first resource and a second resource, and the DMRS of the terminal device is scrambled by an orthogonal code, and the second manner includes that the DMRS of the terminal device is carried on the first resource or the second resource.

62. The device according to claim 61, characterized in that, The first resource belongs to a first resource unit, the second resource belongs to a second resource unit, the first resource unit and the second resource unit are different time-domain resources, or the first resource unit and the second resource unit are different frequency-domain resources.

63. The device according to claim 62, characterized in that, Part of the resources in the first resource unit are used to transmit a first physical uplink shared channel PUSCH, and part of the resources in the second resource unit are used to transmit a second PUSCH; Wherein, the first PUSCH is an initial transmission of the PUSCH or a repeated transmission of the PUSCH, and the second PUSCH is a repeated transmission of the PUSCH.

64. The device according to claim 63, wherein, The transport blocks carried by the first PUSCH and the second PUSCH are the same, the redundancy of the first PUSCH and the second PUSCH is the same, and the hybrid automatic repeat request process numbers associated with the first PUSCH and the second PUSCH are the same.

65. The device according to any one of claims 62 - 64, characterized in that, The first resource unit and the second resource unit are continuous or discontinuous in the time domain; or the first resource unit and the second resource unit are continuous or discontinuous in the frequency domain.

66. The device according to any one of claims 62-65, characterized in that, The relative position of the first resource in the first resource unit is the same as the relative position of the second resource in the second resource unit.

67. The device according to any one of claims 62 - 66, characterized in that, The resource unit is any one of a time slot, a physical resource block PRB, and a sub-PRB.

68. The device according to claim 67, wherein When the resource unit is a sub-PRB, the first resource unit and the second resource unit belong to the same PRB.

69. The device according to claim 67 or 68, characterized in that, If the first resource unit and the second resource unit are different sub-PRBs, the device further includes: A first sending unit, configured to send first information to the terminal device, where the first information is used to determine the size of the sub-PRB.

70. The device according to any one of claims 61-69, characterized in that, The device further includes: A second sending unit, configured to send second information to the terminal device, where the second information is used to determine the number of resource units included in a third resource, and the DMRS transmission manner associated with some or all of the resource units in the third resource is the first manner or the second manner; wherein, the resource unit is any one of a time slot, a PRB, and a sub-PRB.

71. The device according to claim 70, characterized in that, The third resource includes one or more resource groups, each resource group includes the first resource and the second resource, and the first manner is respectively applied to transmit the DMRS in each resource group, or the second manner is respectively applied to transmit the DMRS in each resource group.

72. The device according to claim 71, characterized in that, The device further includes: A third sending unit, configured to send third information to the terminal device, where the third information is used to determine the number of the resource groups included in the third resource.

73. The device according to claim 71 or 72, characterized in that, The device further includes: A fourth sending unit, configured to send fourth information to the terminal device, where the fourth information is used to determine the number of resource units included in each of the resource groups.

74. The device according to any one of claims 71 to 73, characterized in that, The number of resource units included in the one or more resource groups is not completely the same.

75. The device according to any one of claims 71-74, characterized in that, The one or more resource groups include a first resource group, and the device further includes: A fifth sending unit, configured to send fifth information to the terminal device, where the fifth information is used to determine the first resource group, and the first resource group includes the DMRS transmission resources of the terminal device.

76. The device according to any one of claims 71 - 75, characterized in that, The third resource includes a first time slot group and a second time slot group, and PUSCH is transmitted in a frequency hopping manner between the first time slot group and the second time slot group; Wherein, the time slots included in the first time slot group and / or the second time slot group are determined based on the time slots included in the resource group and / or the time slots associated with the DMRS bundling.

77. The device according to any one of claims 61 - 76, characterized in that, The device further includes: A sixth sending unit, configured to send sixth information to the terminal device, where the sixth information is used to determine that the transmission mode of the DMRS of the terminal device is the first mode or the second mode.

78. The device according to any one of claims 62 - 77, characterized in that, If the terminal device transmits DMRS in the second mode, the device further includes: A seventh sending unit, configured to send seventh information to the terminal device, where the seventh information is used to determine the resource units associated with the DMRS transmission of the terminal device among the first resource unit and the second resource unit.

79. The device according to any one of claims 61 - 78, characterized in that, The device further includes: An eighth sending unit, configured to send eighth information to the terminal device, where the eighth information is used to determine an orthogonal code, and the orthogonal code acts on the DMRS carried by the first resource and / or the second resource.

80. The device according to any one of claims 61 - 79, characterized in that, The first mode includes that the DMRS of the terminal device is carried on the first resource and the second resource, and the DMRS of the terminal device is scrambled by an orthogonal cover code OCC.

81. A terminal device, characterized in that, Including a memory and a processor, the memory is used to store a program, and the processor is used to call the program in the memory to execute the method according to any one of claims 1-20.

82. A network device, characterized in that, Including a memory and a processor, the memory is used to store a program, and the processor is used to call the program in the memory to execute the method according to any one of claims 21-40.

83. A device, characterized in that, Including a processor, configured to call a program from a memory to execute the method according to any one of claims 1-20 or 21-40.

84. A chip, characterized in that, Including a processor, configured to call a program from a memory, so that the device installed with the chip executes the method according to any one of claims 1-20 or 21-40.

85. A computer-readable storage medium, characterized in that, Stored thereon is a program, and the program causes a computer to execute the method according to any one of claims 1-20 or 21-40.

86. A computer program product, characterized in that, Including a program, and the program causes a computer to execute the method according to any one of claims 1-20 or 21-40.

87. A computer program, characterized in that, The computer program causes a computer to execute the method according to any one of claims 1-20 or 21-40.

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