Method for determining demodulation reference signal resource, terminal device and network device

Abstract

The embodiment of the application discloses a method for determining a demodulation reference signal resource, a terminal device and a network device, wherein the method comprises the following steps: the terminal device determines a plurality of symbols according to the transmission times of a channel and time domain resource allocation information, the plurality of symbols containing at least one symbol in symbols corresponding to at least twice transmission; and the terminal device determines the position of a demodulation reference signal (DMRS) in the plurality of symbols. The embodiment of the application can reduce the overhead of the DMRS and improve the time domain resource utilization rate.

Description

Technical Field

[0001] This application relates to the field of communications, and more specifically, to a method for determining demodulation reference signal resources, terminal equipment, and network equipment. Background Technology

[0002] In existing technologies, channel repetition allocates the same time-domain resources for each transmission. The corresponding demodulation reference signal (DMRS) resources are also allocated separately for each transmission. For example, for multiple transmissions on a Physical Uplink Shared Channel (PUSCH), configuring DMRS time-domain resources separately for each transmission leads to low resource utilization; especially when the number of symbols in each transmission is relatively small, the overhead of DMRS is significant. Summary of the Invention

[0003] This application provides a method for determining DMRS resources, a terminal device, and a network device, which can reduce DMRS overhead and improve time domain resource utilization.

[0004] The application embodiment provides a method for determining demodulation reference signal resources, including:

[0005] The terminal device determines multiple symbols based on the number of transmissions of the channel and time-domain resource allocation information. These multiple symbols include at least one symbol from at least two transmissions.

[0006] The terminal device determines the position of the demodulation reference signal DMRS within the multiple symbols.

[0007] This application provides a method for determining demodulation reference signal resources, including:

[0008] The network device determines multiple symbols based on the number of transmissions on the channel and time-domain resource allocation information. These multiple symbols include at least one symbol from at least two transmissions.

[0009] The network device determines the position of the demodulation reference signal DMRS within the multiple symbols.

[0010] This application provides a terminal device, including:

[0011] The first symbol determination module is used to determine multiple symbols based on the number of transmissions of the channel and time-domain resource allocation information, wherein the multiple symbols include at least one symbol from at least two transmissions.

[0012] The first position determination module is used to determine the position of the demodulation reference signal DMRS among the multiple symbols.

[0013] This application provides a network device, including:

[0014] The second symbol determination module is used to determine multiple symbols based on the number of transmissions of the channel and time-domain resource allocation information. The multiple symbols include at least one symbol from at least two transmissions.

[0015] The second position determination module is used to determine the position of the demodulation reference signal DMRS among the multiple symbols.

[0016] This application provides a terminal device, including a processor and a memory, the memory for storing computer programs, and the processor for calling and running the computer programs stored in the memory to execute any one of the methods for determining DMRS resources described above.

[0017] This application provides a network device, including a processor and a memory, the memory for storing computer programs, and the processor for calling and running the computer programs stored in the memory to perform any of the methods for determining DMRS resources as described in the second method above.

[0018] This application provides a chip, including a processor for calling and running a computer program from a memory, causing a device equipped with the chip to perform any of the methods described in the first DMRS resource determination method above.

[0019] This application provides a chip, including a processor for calling and running a computer program from a memory, causing a device equipped with the chip to perform any of the methods described in the second DMRS resource determination method above.

[0020] This application provides a computer-readable storage medium for storing a computer program that causes a computer to perform any of the methods described in the first DMRS resource determination method above.

[0021] This application provides a computer-readable storage medium for storing a computer program that causes a computer to perform any of the methods described in the second DMRS resource determination method above.

[0022] This application provides a computer program product including computer program instructions that cause a computer to execute any of the methods described in the first DMRS resource determination method above.

[0023] This application provides a computer program product including computer program instructions that cause a computer to execute any of the methods for determining DMRS resources described in the second type above.

[0024] This application provides a computer program that causes a computer to perform any of the methods described in the first DMRS resource determination method above.

[0025] This application provides a computer program that causes a computer to perform any of the methods described in the second DMRS resource determination method above.

[0026] The embodiments of this application determine the location of DMRS resources among multiple symbols corresponding to at least two transmissions, thereby making the setting of DMRS symbols more reasonable, thereby reducing DMRS overhead and improving time domain resource utilization. Attached Figure Description

[0027] Figure 1 This is a schematic diagram illustrating an application scenario of an embodiment of this application.

[0028] Figure 2 This is a flowchart of a method 200 for determining DMRS resources according to an embodiment of this application.

[0029] Figure 3 This is a schematic diagram of the PUSCH transmission symbol according to Embodiment 1 of this application.

[0030] Figure 4 This is a schematic diagram showing the location of the PUSCH DMRS symbol, determined based on existing technology.

[0031] Figure 5 This is a schematic diagram of the location of a PUSCH DMRS symbol determined according to Embodiment 1 of this application.

[0032] Figure 6 This is a schematic diagram of the PUSCH transmission symbol according to Embodiment 2 of this application.

[0033] Figure 7 This is a schematic diagram of the location of a PUSCH DMRS symbol determined according to Embodiment 3 of this application.

[0034] Figure 8 This is a schematic diagram of the location of a PUSCH DMRS symbol determined according to Embodiment 3 of this application.

[0035] Figure 9 This is a schematic diagram of the PUSCH transmission symbol position determined according to Embodiment 5 of this application.

[0036] Figure 10This is a flowchart of a method 1000 for determining DMRS resources according to an embodiment of this application.

[0037] Figure 11 This is a schematic structural diagram of a terminal device 1100 according to an embodiment of this application.

[0038] Figure 12 This is a schematic structural diagram of a network device 1200 according to an embodiment of this application.

[0039] Figure 13 This is a schematic structural diagram of a network device 1300 according to an embodiment of this application.

[0040] Figure 14 This is a schematic structural diagram of a communication device 1400 according to an embodiment of this application.

[0041] Figure 15 This is a schematic structural diagram of chip 1500 according to an embodiment of this application. Detailed Implementation

[0042] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0043] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of the embodiments of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. The objects described by "first" and "second" may be the same or different.

[0044] The technical solutions of this application embodiment 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, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), 5th Generation (5G) system, or other communication systems, etc.

[0045] Traditional communication systems typically 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 communication but also, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC) communication, and vehicle-to-vehicle (V2V) communication. The embodiments of this application can also be applied to these communication systems.

[0046] Optionally, the communication system in this application embodiment can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, or a standalone (SA) network deployment scenario.

[0047] The embodiments of this application do not limit the spectrum to which the application is applied. For example, the embodiments of this application can be applied to licensed spectrum or unlicensed spectrum.

[0048] This application describes various embodiments in conjunction with network devices and terminal devices, wherein: the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device, etc. The terminal device may be a station (STAION, ST) in a WLAN, a cellular phone, cordless phone, Session Initiation Protocol (SIP) phone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA) device, handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, vehicle-mounted device, wearable device, and next-generation communication system, such as terminal device in an NR network or terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc.

[0049] By way of example and not limitation, in this embodiment, the terminal device can also be a wearable device. Wearable devices, also known as wearable smart devices, are a general term for devices that utilize wearable technology to intelligently design and develop everyday wearables, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not merely hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are feature-rich, large in size, and can achieve complete or partial functions without relying on a smartphone, such as smartwatches or smart glasses, as well as those that focus on a specific type of application function and require the use of other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0050] Network devices can be devices used to communicate with mobile devices. Network devices can be access points (APs) in WLANs, base stations (BTSs) in GSM or CDMA, base stations (NodeBs, NBs) in WCDMA, evolved base stations (eNBs or eNodeBs) in LTE, relay stations or access points, or in-vehicle devices, wearable devices, and network devices (gNBs) in NR networks, or network devices in future evolved PLMN networks, etc.

[0051] In this embodiment, the network device provides services to the cell, and the terminal device communicates with the network device through the transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell. The cell can be the cell corresponding to the network device (e.g., base station). The cell can belong to a macro base station or to a base station corresponding to a small cell. The small cell can include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-speed data transmission services.

[0052] Figure 1 An exemplary embodiment shows one network device 110 and two terminal devices 120. Optionally, the wireless communication system 100 may include multiple network devices 110, and the coverage area of ​​each network device 110 may include other numbers of terminal devices 120. This application embodiment does not limit this. This application embodiment can be applied to one terminal device 120 and one network device 110, or it can be applied to one terminal device 120 and another terminal device 120.

[0053] Optionally, the wireless communication system 100 may also include other network entities such as a Mobility Management Entity (MME) and an Access and Mobility Management Function (AMF), which are not limited in this application embodiment.

[0054] It should be understood that the terms "system" and "network" are often used interchangeably in this document. The term "and / or" in this document merely describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Furthermore, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0055] In existing technologies, channel repetition allocates the same time-domain resources for each transmission. The corresponding DMRS resources are also determined separately for each transmission. For example, the transmission of the Physical Downlink Shared Channel (PDSCH) includes DMRS transmission, used by the terminal to demodulate the PDSCH. The time-frequency resources of the DMRS are within the scheduling resource range of the PDSCH, and the PDSCH does not occupy the symbols carrying the DMRS. The location of the DMRS's time-frequency domain resources is configured through higher-layer parameters.

[0056] The temporal resource locations of PDSCH DMRS include front-loaded DMRS and additional DMRS. The temporal location of the front-loaded DMRS is related to the PDSCH mapping type. For PDSCH mapping type A, the temporal location of the front-loaded DMRS is determined by the higher-level parameter dmrs-TypeA-Position. dmrs-TypeA-Position = 'pos2' and 'pos3' represent the first symbol position l0 = 2 and 3 of the front-loaded DMRS, respectively, with the reference point of l being the starting symbol of the time slot. For PDSCH mapping type B, the first symbol position l0 of the front-loaded DMRS is 0, and the reference point of l is the starting symbol of the scheduled PDSCH. The additional DMRS is configured by the higher-level parameter dmrs-AdditionalPosition. dmrs-AdditionalPosition can indicate one of the additional DMRS positions = {pos0, pos1, pos3}. When dmrs-AdditionalPosition is not configured, the additional DMRS position is pos2. Furthermore, for the front-end DMRS, there are two types: single-symbol and double-symbol, indicating whether the DMRS contains one or two symbols. If the higher-level parameter maxLength is not configured, it is of type single; if the higher-level parameter maxLength is configured, it is determined as single or double based on the DCI's instructions.

[0057] Table 1 shows the corresponding positions of PDSCH DMRS symbols. For example, for PDSCH mapping type A, when l d =12, if dmrs-AdditionalPosition is configured as pos2, then the symbol where the DMRS is located includes the symbol where the preceding DMRS is located and the symbols 6 and 9 where the additional DMRS is located.

[0058] Table 1

[0059]

[0060]

[0061] PUSCH DMRS also includes pre-DMRS and additional DMRS, and their time-domain and frequency-domain configuration methods are similar to those of PDSCHDMRS. Table 2 shows the corresponding PUSCH DMRS symbol positions.

[0062] Table 2

[0063]

[0064] In NR systems, to support ultra-reliable and low-latency communication (URLLC) services, uplink data transmission repetition is used to improve transmission reliability. PUSCH repetition includes two types: PUSCH repetition Type A and PUSCH repetition Type B. The PUSCH repetition type is determined by higher-layer signaling. The time-domain resource allocation method for PUSCH differs between PUSCH repetition Type A and Type B.

[0065] -PUSCH repetition Type A: The starting symbol S of the PUSCH and the number of consecutive symbols L starting from symbol S are determined by the start and length indicator (SLIV) indicated in the PDCCH.

[0066] -PUSCH repetition Type B: The starting symbol S of PUSCH and the number of consecutive symbols L starting from symbol S are determined by the starting symbol and length information corresponding to the row in the time-domain resource allocation table.

[0067] For PUSCH repetition Type A, the UE repeatedly transmits the same transport block in K consecutive time slots. The symbol allocation within each time slot is the same, i.e., the symbol allocation within the time slot indicated by startSymbolAndLength. For PUSCH repetition Type B, the K transmissions of PUSCH occur in time slot K. s Starting with symbol S, transmission occurs over K·L consecutive symbols, with each transmission containing L symbols. In existing PUSCH transmissions, the time-domain resource allocation is the same for each transmission. Correspondingly, the DMRS also allocates time-domain resources separately for each transmission. For multiple PUSCH transmissions, configuring DMRS time-domain resources separately for each transmission results in low resource utilization, especially when the number of symbols in each transmission is relatively small, leading to significant DMRS overhead. Other existing channel transmissions, such as PDSCH or Physical Uplink Control Channel (PUCCH), may also suffer from similar problems.

[0068] This application proposes a method for determining DMRS resources. Figure 2 This is a flowchart illustrating a method 200 for determining DMRS resources according to an embodiment of this application. This method can optionally be applied to... Figure 1 The system shown is not limited to this. The method includes at least a portion of the following.

[0069] S210: The terminal device determines multiple symbols based on the number of transmissions of the channel and time-domain resource allocation information, wherein the multiple symbols include at least one symbol from at least two transmissions;

[0070] S220: The terminal device determines the position of the DMRS among the multiple symbols.

[0071] In some implementations, the symbols corresponding to the aforementioned transmission include symbols allocated by the time-domain resource allocation information for each repeated transmission of the channel. For example, the time-slot resource allocation information indicates the starting symbol S of the channel transmission and the number L of consecutive symbols starting from the starting symbol S. The number of transmissions of the channel is K. The repeated transmission of the channel by the terminal device starts with symbol S in time slot Ks and is transmitted over K·L consecutive symbols, with each transmission containing L symbols ("·" represents a multiplication sign). Step S210 determines multiple symbols based on the number of transmissions of the channel and the time-domain resource allocation information. These multiple symbols include at least the symbols corresponding to two transmissions, including valid symbols and invalid symbols, or only valid symbols.

[0072] Optionally, the aforementioned valid symbols include symbols used for transmission on the channel, and the aforementioned invalid symbols include symbols not used for transmission on the channel. For example, a valid symbol refers to a symbol actually used for transmission on the channel; an invalid symbol refers to a symbol that, although allocated for transmission on the channel, is indicated as a downlink signal or is indicated as an invalid symbol by higher-layer parameters (such as InvalidSymbolPattern), thus making it unusable for transmission on the channel. In some embodiments, invalid symbols are determined through indication information from network devices, and invalid symbols are related to the time-domain resource allocation of the channel; for example, invalid symbols belong to a subset of the symbols indicated in the time-domain resource allocation information of the channel.

[0073] The aforementioned multiple symbols can take various forms: for example, the multiple symbols may include K·L symbols corresponding to the channel repetition transmission of the terminal device; or, the multiple symbols may include some of the K·L symbols corresponding to the channel repetition transmission of the terminal device; or, the multiple symbols may include K·L valid symbols starting from the start position of the first channel repetition transmission; or, the multiple symbols may include K·L valid symbols starting from the start position of the first channel repetition transmission, and invalid symbols existing between the first and last valid symbols.

[0074] In some embodiments, step S220 includes:

[0075] The position of DMRS among the above symbols is determined according to predefined rules; and / or,

[0076] Based on the number of symbols contained in the above-mentioned symbols, configuration parameters, and the first correspondence between the positions of the DMRS symbols, the position of DMRS in the above-mentioned symbols is determined.

[0077] The aforementioned DMRS may include a pre-DMRS, or may include a pre-DMRS and an additional DMRS.

[0078] In the above method, the embodiments of this application determine the symbol positions of the DMRS among the plurality of symbols. Optionally, the above predefined rules include the symbol positions of the preceding DMRS and the intervals between DMRS; according to the predefined rules, the terminal device can determine the symbol positions of the preceding DMRS among the plurality of symbols, and determine the symbol positions of the additional DMRS and the number of additional DMRSs among the plurality of symbols according to the intervals. For example, the predefined rules include: the symbol position of the preceding DMRS is 0, and the interval between DMRSs is 5 symbols. When determining the position of the DMRS among 28 symbols, multiple DMRSs can be determined according to the aforementioned predefined rules, and the positions of each DMRS among the 28 symbols are: 0, 5, 10, 15, 20, and 25, respectively. This includes one preceding DMRS and five additional DMRSs.

[0079] In some implementations, the first correspondence of DMRS symbol positions includes the correspondence between the symbol position of the DMRS and the number of symbols contained in multiple symbols, as well as configuration parameters. For example, when the number of symbols is 16 and the configuration parameter dmrs-AdditionalPosition = 'pos2', the corresponding DMRS symbol positions are 10, 5, and 10, where 10 is the symbol position of the preceding DMRS, and the value of 10 can be 0; 5 and 10 are the symbol positions of the additional DMRS. Based on this first correspondence, after determining the number of symbols contained in multiple symbols and receiving the configuration parameters, the terminal device can determine the position of the DMRS in the multiple symbols. The specific values ​​and parameters in the aforementioned first correspondence are merely examples, and the embodiments of this application do not impose limitations on them.

[0080] This implementation method applies to cases where the above-mentioned multiple symbols include both valid and invalid symbols, and also to cases where the above-mentioned multiple symbols include only valid symbols.

[0081] For cases where the aforementioned multiple symbols include valid and invalid symbols, this application embodiment also proposes a method for determining the DMRS position among these multiple symbols. Optionally, when the aforementioned multiple symbols include valid and invalid symbols, the above step S220 includes:

[0082] The position of DMRS among the valid symbols in the above-mentioned multiple symbols is determined according to predefined rules; and / or,

[0083] Based on the number of valid symbols contained in the above symbols, the configuration parameters, and the second correspondence between the positions of the DMRS symbols, the position of the DMRS in the above symbols is determined.

[0084] The aforementioned DMRS may include a pre-DMRS, or may include a pre-DMRS and an additional DMRS.

[0085] In the above method, the embodiments of this application determine the symbol position of the DMRS among the valid symbols contained in the plurality of symbols. Optionally, the above predefined rules include the symbol position of the preceding DMRS and the interval between DMRS; according to the predefined rules, the terminal device can determine the symbol position of the preceding DMRS among the valid symbols of the plurality of symbols, and determine the symbol position of the additional DMRS and the number of additional DMRSs among the valid symbols according to the interval. For example, the predefined rules include: the symbol position of the preceding DMRS is 0, and the interval between DMRSs is 5 symbols. The above 28 symbols include 24 valid symbols, and the position of the DMRS in the valid symbols is determined; according to the aforementioned predefined rules, a plurality of DMRSs can be determined, and the positions of each DMRS in the 24 valid symbols are: 0, 5, 10, 15, and 20, respectively. This includes one preceding DMRS and four additional DMRSs. Since the position of the valid symbols in the plurality of symbols is determined, the position of the DMRS in the plurality of symbols can be determined.

[0086] In some implementations, the second correspondence of DMRS symbol positions includes the correspondence between the symbol position of the DMRS and the number of valid symbols contained in multiple symbols, as well as configuration parameters. For example, in 28 symbols, the number of valid symbols is 24, and the configuration parameter dmrs-AdditionalPosition = 'pos2', the corresponding DMRS symbol positions are 10, 5, 10, 15, and 20, where 10 is the symbol position of the preceding DMRS, and the value of 10 can be 0; 5, 10, 15, and 20 are the positions of the additional DMRS in the valid symbols. Based on this second correspondence, after determining the number of valid symbols contained in multiple symbols and receiving the configuration parameters, the terminal device can determine the position of the DMRS in the valid symbols of the multiple symbols; since the position of the valid symbols in the multiple symbols is determined, the position of the DMRS in the multiple symbols can then be determined. It should be understood that the specific values ​​and parameters in the aforementioned second correspondence are merely examples, and the embodiments of this application do not impose limitations on them.

[0087] This application embodiment can also group the above-mentioned multiple symbols and determine the position of DMRS in each symbol group. Specifically:

[0088] In some embodiments, step S220 includes:

[0089] Divide the above symbols into at least two symbol groups;

[0090] The position of DMRS in each symbol group is determined according to predefined rules; and / or, the position of DMRS in each symbol group is determined according to the number of symbols contained in each symbol group, configuration parameters, and a third correspondence between the positions of DMRS symbols.

[0091] The aforementioned DMRS may include a pre-DMRS, or may include a pre-DMRS and an additional DMRS.

[0092] In some implementations, the number of symbols in the above symbol groups may be the same or different. Each symbol group contains at least one symbol from the corresponding symbols that are transmitted at least twice.

[0093] In the above-described manner, the embodiments of this application determine the symbol position of the DMRS within each symbol group. Optionally, the predefined rules include the symbol position of the preceding DMRS and the interval between DMRSs. According to these predefined rules, the terminal device can determine the symbol position of the preceding DMRS within the symbols contained in the symbol group, and determine the symbol position of the additional DMRS and the number of additional DMRSs within the symbol group according to the interval. For example, the predefined rules include: the symbol position of the preceding DMRS is 0, and the interval between DMRSs is 5 symbols. If a symbol group contains 12 symbols, then according to the aforementioned predefined rules, the positions of the DMRS in the symbol group can be determined as 0, 5, and 10, respectively. This includes one preceding DMRS and two additional DMRSs. By determining the position of the DMRS in each symbol group in the same way, and combining the position information in all symbol groups, the position of the DMRS in the aforementioned multiple symbols can be determined.

[0094] In some implementations, the third correspondence of DMRS symbol positions includes the correspondence between the symbol position of the DMRS and the number of symbols in the symbol group and the configuration parameters. For example, if the symbol group contains 14 symbols and the configuration parameter dmrs-AdditionalPosition = 'pos2', the corresponding DMRS symbol positions are l0, 7, and 11, where l0 is the symbol position of the preceding DMRS, and the value of l0 can be 0; 7 and 11 are the positions of the additional DMRS in the symbol group. Based on this third correspondence, after determining the number of symbols in the symbol group and receiving the configuration parameters, the terminal device can determine the position of the DMRS in the symbol group; by combining the position information in all symbol groups, the position of the DMRS in the aforementioned multiple symbols can be determined. It should be understood that the specific values ​​and parameters in the aforementioned third correspondence are only examples, and the embodiments of this application do not limit this. When the number of symbol groups does not exceed a predetermined threshold, the embodiments of this application can also use the DMRS symbol position correspondence in the prior art, such as the correspondence table of PUSCH DMRS symbol positions shown in Table 2, to determine the position of the DMRS in the symbol group.

[0095] This implementation method applies to cases where the above-mentioned multiple symbols include both valid and invalid symbols, and also to cases where the above-mentioned multiple symbols include only valid symbols.

[0096] In some implementations, when the plurality of symbols includes valid symbols and invalid symbols, step S220 above includes:

[0097] Divide the valid symbols among the above-mentioned symbols into at least two symbol groups;

[0098] The position of DMRS in each symbol group is determined according to predefined rules; and / or, the position of DMRS in each symbol group is determined according to the number of symbols contained in each symbol group, configuration parameters, and the fourth correspondence between the positions of DMRS symbols.

[0099] The aforementioned DMRS may include a pre-DMRS, or may include both a pre-DMRS and an additional DMRS. Optionally, the number of symbols in the aforementioned symbol groups may be the same or different, and each symbol group contains at least one symbol from the corresponding symbols transmitted at least twice.

[0100] In the above method, this application embodiment groups the valid symbols contained in multiple symbols and determines the symbol position of the DMRS in the symbols (containing only valid symbols) contained in each symbol group. Optionally, the above predefined rules include the symbol position of the preceding DMRS and the interval between DMRS; according to the predefined rules, the terminal device can determine the symbol position of the preceding DMRS in the symbols contained in the symbol group, and determine the symbol position of the additional DMRS and the number of additional DMRS in the symbol group according to the interval. For example, the predefined rules include: the symbol position of the preceding DMRS is 0, and the interval between DMRS is 5 symbols. If a symbol group contains 12 symbols, then according to the aforementioned predefined rules, the positions of the DMRS in the symbol group can be determined as 0, 5, and 10, respectively. This includes one preceding DMRS and two additional DMRS. The position of DMRS in each symbol group is determined in the same way. By combining the position information of DMRS in all symbol groups, the position of DMRS in all the above symbol groups can be determined. Since the position of the valid symbols contained in the symbol group is determined in the above multiple symbols, the position of DMRS in the above multiple symbols can be determined.

[0101] In some implementations, the fourth correspondence of DMRS symbol positions includes the correspondence between the symbol position of the DMRS and the number of valid symbols in the symbol group, as well as the configuration parameters. For example, if the symbol group contains 12 symbols and the configuration parameter dmrs-AdditionalPosition = 'pos2', the corresponding DMRS symbol positions are l0, 6, and 9, where l0 is the symbol position of the preceding DMRS (the value of l0 can be 0); 6 and 9 are the positions of the additional DMRS in the symbol group. Based on this fourth correspondence, after determining the number of symbols in the symbol group and receiving the configuration parameters, the terminal device can determine the position of the DMRS in the symbol group; by combining the positions of the DMRS in all symbol groups, the position of the DMRS among the valid symbols in the above-mentioned multiple symbols can be determined; and further, based on the positions of the valid symbols in the above-mentioned multiple symbols, the position of the DMRS in the above-mentioned multiple symbols can be determined. It should be understood that the specific values ​​and parameters in the aforementioned fourth correspondence are merely examples, and the embodiments of this application do not limit this. If the number of symbol groups does not exceed a predetermined threshold, the embodiments of this application may also adopt the DMRS symbol position correspondence in the prior art, such as the PUSCH DMRS symbol position correspondence table shown in Table 2, to determine the position of DMRS in the symbol group.

[0102] The first, second, third, and fourth correspondences mentioned above can be represented in the form of a DMRS symbol position correspondence table. The above four correspondences can be represented using the same or different DMRS symbol position correspondence tables.

[0103] In some implementations, the terminal device divides the aforementioned plurality of symbols into at least two symbol groups according to a predefined method and / or signaling indication. This implementation is applicable to cases where the aforementioned plurality of symbols includes both valid and invalid symbols, and also to cases where the aforementioned plurality of symbols includes only valid symbols.

[0104] In some implementations, when the plurality of symbols includes valid and invalid symbols, the terminal device divides the valid symbols among the plurality of symbols into at least two symbol groups according to a predefined method and / or signaling indication.

[0105] In some implementations, the number of symbols mentioned above is K·L; wherein,

[0106] K represents the number of transmissions via the aforementioned channel;

[0107] L represents the number of symbols corresponding to each transmission, and L is carried in the aforementioned time-domain resource allocation information.

[0108] The K·L symbols may include valid symbols, or may include both valid and invalid symbols.

[0109] Alternatively, in some implementations, when the aforementioned plurality of symbols includes valid symbols and invalid symbols, the number of valid symbols is K·L; wherein,

[0110] K represents the number of transmissions via the aforementioned channel;

[0111] L represents the number of symbols corresponding to each transmission, and L is carried in the aforementioned time-domain resource allocation information.

[0112] Optionally, the aforementioned channels include PUSCH, Physical Downlink Shared Channel (PDSCH), or Physical Uplink Control Channel (PUCCH).

[0113] The present application is described in detail below with reference to the accompanying drawings and specific embodiments. In the following embodiments, the PUSCH channel is used as an example. The DMRS resource determination method proposed in the embodiments of the present application can also be applied to other channels, such as PDSCH, PUCCH, etc.

[0114] Example 1:

[0115] Based on the number of transmissions K and the number of symbols L corresponding to each transmission carried in the time-domain resource allocation information of PUSCH, K·L symbols are determined. The time-domain resources of DMRS are then determined based on these K·L symbols. Here, "·" represents a multiplication sign. All K·L symbols are valid symbols, or K·L symbols include both valid and invalid symbols.

[0116] Taking PUSCH repetition Type B as an example, the K transmissions of PUSCH begin with symbol S in the Ks time slot and are transmitted over K·L consecutive symbols, with each transmission containing L symbols. Figure 3 For example, with K=4 and L=4, starting from the initial symbol S of the initial time slot Ks, 16 consecutive symbols are valid symbols, which are the symbols where PUSCH transmission is located.

[0117] In each PUSCH transmission, according to existing technology, the symbols containing the DMRS are determined on L symbols. Currently, the value of L ranges from {1, ..., 14}. In existing technology, the symbols containing the DMRS on the L symbols scheduled for PUSCH at least include the preceding DMRS, and additional DMRS can be configured further. When the value of L is small, the overhead of the DMRS will be relatively large. In existing technology, the configuration of DMRS is related to L. For example, in the PUSCH DMRS symbol position correspondence table, for PUSCH mapping type B, when L is less than or equal to 4, only the symbols with the preceding DMRS exist. As L increases, more symbols with additional DMRS can be configured. Figure 4 As shown, when the number of symbols transmitted each time L = 4, the symbol position of DMRS is the first symbol out of L symbols. Figure 4 In the image, the rectangle filled with diagonal lines is the DMRS symbol.

[0118] In this embodiment, the symbol configuration of the DMRS is not configured individually in each of the L symbols transmitted, but rather the symbol positions of the DMRS are configured as a whole in a set of K·L symbols. The symbols configured with the DMRS in the set of K·L symbols include either a preceding DMRS or both a preceding DMRS and an additional DMRS.

[0119] Once K and L are determined, the symbol containing the DMRS is determined based on their specific values. For example, K·L symbols contain a preceding DMRS symbol and several additional DMRS symbols; the number and position of the additional DMRS symbols depend on the quantity of K·L. The symbol containing the DMRS can be determined in the following way:

[0120] - According to predefined rules: the symbol positions of the DMRS are determined based on the symbol positions of the preceding DMRS configured in the higher layer and the number of K·L symbols. For example, the symbol positions or number of additional DMRS are determined at certain intervals.

[0121] - Based on network configuration signaling: Similar to existing technologies, a pre-defined table mapping DMRS symbol positions is used. The DMRS symbol positions are determined based on the configuration parameter `dmrs-AdditionalPosition` and the number of symbols for repeated PUSCH transmissions, K·L. For example, if K takes values ​​of 1, 2, 4, 7, 12, and 16, and L takes values ​​of 2, 4, and 7, then the possible values ​​for K·L are 2, 4, 7, 8, 14, 16, 24, 28, 32, 48, 49, 64, 84, and 112. The corresponding tables for these symbol counts are set up as shown in Table 3 below:

[0122] Table 3

[0123]

[0124] As can be seen, the symbol position of DMRS is determined based on the total number of symbols in the repeatedly transmitted PUSCH and the higher-layer configuration parameters. It should be noted that the table above is just an example, and the specific values ​​in the table are not limited.

[0125] by Figure 5 For example, with L=4 and K=4, the symbol positions of DMRS are configured across 16 symbols. Taking Table 3 above as an example, when the high-level parameter dmrs-AdditionalPosition='pos2', the symbol positions of DMRS are as follows: Figure 5 As shown, Figure 5 The rectangle filled with diagonal lines represents the DMRS symbol. It can be seen that the DMRS symbol position is configured using high-level parameters based on the overall length of the 16 symbols.

[0126] Compared with the prior art, the symbol settings of DMRS in the embodiments of this application are more reasonable, the overhead is reduced, and the utilization rate of time domain resources is higher.

[0127] Example 2:

[0128] When the K·L symbols include both valid and invalid symbols, the symbol position of DMRS is configured among the valid symbols in the K·L symbols; since the position of the valid symbols in the K·L symbols is determined, the position of DMRS in the K·L symbols can be further determined.

[0129] In existing technology, taking PUSCH repetition Type B as an example, K PUSCH transmissions are carried out over K·L consecutive symbols, with each transmission containing L symbols. These K·L symbols are the symbols nominally used for the K transmissions. In reality, some symbols may be invalid over these K·L consecutive symbols, such as some symbols being designated as downlink symbols or some symbols being designated as invalid symbols by the higher-level parameter InvalidSymbolPattern. In this case, these invalid symbols are not used for PUSCH repetition transmissions, and the remaining symbols out of the K·L symbols are used for PUSCH repetition Type B transmissions. A nominal transmission containing L symbols may be split into one or more actual transmissions due to invalid symbols, with each actual transmission containing consecutive valid symbols. When an actual transmission contains only 1 valid symbol, the actual transmission is canceled unless L = 1. DMRS symbols are set separately for each actual transmission. This results in very high DMRS overhead. Figure 6 For example, L=7, K=4, including 4 invalid symbols. Each nominal transmission is divided into two actual transmissions by the invalid symbols. For each actual transmission, the symbol position of the DMRS is determined according to L'=3, which is the first symbol of the actual transmission. Figure 6 In the text, rectangles filled with dark gray are invalid symbols, while rectangles filled with diagonal lines are DMRS symbols.

[0130] In this embodiment, considering the existence of invalid symbols, the symbol positions of the DMRS are configured among the valid symbols out of K·L symbols. Specifically, based on the values ​​of K and L, a symbol set containing K·L symbols is determined; based on higher-layer configuration information or physical layer signaling, a set of valid symbols is determined within the symbol set of K·L symbols; based on the set of valid symbols and the higher-layer configuration information or physical layer signaling, the symbol positions of the DMRS within the set of valid symbols are determined. The specific method for determining the DMRS can be similar to that in Embodiment 1, the difference being that the symbol positions of the DMRS are determined based on the valid symbols among K·L symbols. Figure 7 As shown, L=7, K=4, and the number of valid symbols in K·L symbols is 24. Based on these 24 symbols, and higher-layer configuration information or physical layer signaling, the symbol positions of DMRS in the set of valid symbols are determined. Figure 7 In the text, rectangles filled with dark gray are invalid symbols, while rectangles filled with diagonal lines are DMRS symbols.

[0131] Compared to existing technologies, the method proposed in this application has less DMRS overhead, and the demodulation performance of PUSCH can be guaranteed. Compared to Embodiment 1, this embodiment can further determine the DMRS symbol position based on the effective symbol set, making the DMRS transmission symbol setting more reasonable, further reducing DMRS overhead, and achieving higher time domain resource utilization.

[0132] Example 3:

[0133] The time-domain resources of DMRS are determined based on a subset of K·L symbols. These K·L symbols can be either all valid symbols or a mixture of valid and invalid symbols.

[0134] This embodiment can be implemented in the following two ways:

[0135] Method 1: Divide the K·L symbols into several symbol groups, and configure the symbol positions of the DMRS in each symbol group. The number of symbols in each symbol group can be the same or different. The symbols included in each symbol group are at least one symbol from one or more PUSCH transmissions in K transmissions. The symbol positions of the DMRS in each symbol group are configured, including pre-DMRS, or pre-DMRS and additional DMRS. This embodiment can determine the symbol positions of the DMRS in the valid symbol set based on the valid symbol set and higher-layer configuration information or physical layer signaling.

[0136] by Figure 8 For example, the 28 symbols are divided into two symbol groups, each containing 14 symbols. This embodiment utilizes a preset DMRS symbol position correspondence table. Based on the configuration parameters and the number of symbols in each symbol group, the DMRS symbol position is determined within the 14 symbols of each group. Referring to Table 2, when the high-level parameter dmrs-AdditionalPosition = 'pos2', the relative symbol positions of DMRS within the symbol group are 0, 7, and 11. Alternatively, referring to Table 3, when the high-level parameter dmrs-AdditionalPosition = 'pos2', the relative symbol positions of DMRS within the symbol group are 0, 4, 8, and 12. The above example uses two symbol groups containing the same number of symbols. The number of symbols in each symbol group can be the same or different; this embodiment does not impose any restrictions on this.

[0137] Method 2: When the K·L symbols include both valid and invalid symbols, the valid symbols among the K·L symbols are divided into several symbol groups, and each symbol group is assigned a symbol position by the DMRS. For example... Figure 8The system includes 24 valid symbols, which are grouped, for example, into two symbol groups, each containing 12 valid symbols. The symbol position of the DMRS is determined within the 12 valid symbols of each symbol group. This embodiment utilizes a preset DMRS symbol position correspondence table, and determines the DMRS symbol position within each symbol group based on configuration parameters and the number of symbols (all valid symbols) contained in the symbol group. Referring to Table 2, when the high-level parameter dmrs-AdditionalPosition = 'pos2', the relative symbol position of the DMRS within each symbol group is 0, 6, or 9. The above example uses two symbol groups containing the same number of valid symbols; the number of valid symbols in each symbol group can be the same or different, and this embodiment does not impose any restrictions on this.

[0138] In this embodiment, to distinguish it from the prior art method of configuring DMRS symbols in each actual transmission, the symbol group can be further limited to include at least one symbol from the symbols corresponding to two PUSCH transmissions. The PUSCH transmission can be a nominal transmission containing L symbols, or an actual transmission containing fewer than L symbols.

[0139] Compared with embodiments 1 and 2, this embodiment can further determine the DMRS symbol position based on the divided symbol groups, making the DMRS transmission symbol setting more reasonable, further reducing the DMRS overhead, and achieving higher time domain resource utilization.

[0140] Example 4:

[0141] Based on the number of transmissions K and the number of symbols L corresponding to each transmission carried in the time-domain resource allocation information of PUSCH, K·L symbols are determined. These K·L symbols are consecutive valid symbols. Optionally, valid symbols are determined starting from the initial symbol S. When an invalid symbol is encountered, it is skipped, and the determination of the next valid symbol continues until all K·L valid symbols have been determined.

[0142] After determining K·L symbols, at least the following two methods can be used to configure the symbol positions of the DMRS based on the K·L symbols.

[0143] Method 1: Determine the symbol positions of the DMRS based on the symbol positions of the preceding DMRS configured at higher levels, and the number of K·L symbols. For example, determine the symbol positions or number of additional DMRS at certain intervals. Alternatively, pre-define a table corresponding to the DMRS symbol positions, and determine the symbol positions of the DMRS based on configuration parameters (such as dmrs-AdditionalPosition) and the aforementioned determined K·L symbols.

[0144] Method 2: Divide the K·L symbols into several symbol groups, each containing the same or different number of symbols. Determine the symbol positions of the DMRSs within each symbol group. When determining the symbol positions of the DMRSs in each symbol group, the symbol positions can be determined based on the symbol positions of the preceding DMRSs configured at higher levels and the number of symbols in the symbol group. For example, the symbol positions or number of additional DMRSs can be determined at certain intervals. Alternatively, a pre-defined table of DMRS symbol positions can be used, and the symbol positions of the DMRSs in the symbol group can be determined based on configuration parameters (e.g., dmrs-AdditionalPosition) and the symbols in the symbol group.

[0145] Example 5:

[0146] Based on the number of transmissions K and the number of symbols L corresponding to each transmission carried in the time-domain resource allocation information of PUSCH, (K·L+N) symbols are determined, where N is a positive integer. These include K·L valid symbols and N invalid symbols interspersed between the first and last valid symbols. Optionally, the determination of valid symbols can begin with the starting symbol S. When an invalid symbol is encountered, it is skipped, and the determination of the next valid symbol continues until all K·L valid symbols have been determined.

[0147] After determining (K·L+N) symbols, at least four methods can be used to configure the symbol positions of the DMRS based on the (K·L+N) symbols.

[0148] Method 1:

[0149] The symbol positions of the additional DMRS are determined based on the symbol positions of the preceding DMRS configured at higher levels and the number of (K·L+N) symbols. For example, the symbol positions or number of additional DMRSs can be determined at certain intervals. Alternatively, a table corresponding to the DMRS symbol positions can be pre-defined, and the symbol positions of the DMRS can be determined based on configuration parameters (such as dmrs-AdditionalPosition) and the aforementioned (K·L+N) symbols.

[0150] Method 2:

[0151] The (K·L+N) symbols are divided into several symbol groups, and the symbol positions of the DMRSs are configured for each symbol group. When determining the symbol positions of the DMRSs in each symbol group, the symbol positions can be determined based on the symbol positions of the preceding DMRSs configured at higher levels and the number of symbols in the symbol group. For example, the symbol positions or number of additional DMRSs can be determined at certain intervals. Alternatively, a pre-defined table of DMRS symbol positions can be used, and the symbol positions of the DMRSs in the symbol group can be determined based on configuration parameters (such as dmrs-AdditionalPosition) and the symbols in the symbol group.

[0152] Method 3:

[0153] The symbol position of the DMRS is determined from the valid symbols among (K·L+N) symbols. Optionally, the symbol position of the DMRS is determined based on the symbol position of the preceding DMRS configured by the higher layer and the number of K·L valid symbols. For example, the symbol position or number of the additional DMRS is determined at certain intervals. Alternatively, a table corresponding to the DMRS symbol positions is preset, and the position of the DMRS among the valid symbols is determined based on the configuration parameter dmrs-AdditionalPosition and K·L valid symbols among (K·L+N) symbols; and the position of the DMRS among the aforementioned (K·L+N) symbols is further determined based on the position of the valid symbols among the aforementioned (K·L+N) symbols.

[0154] Method 4:

[0155] The K·L valid symbols out of the (K·L+N) symbols are divided into several symbol groups, and the symbol positions of the DMRS are configured for each symbol group. When determining the symbol positions of the DMRS in each symbol group, the symbol positions can be determined based on the symbol positions of the preceding DMRS configured at higher levels and the number of valid symbols in the symbol group. For example, the symbol positions or number of additional DMRS can be determined at certain intervals. Alternatively, a pre-defined table of DMRS symbol positions can be used, and the symbol positions of the DMRS in the symbol group can be determined based on the configuration parameter dmrs-AdditionalPosition and the valid symbols in the symbol group; further, the position of the DMRS in the aforementioned (K·L+N) symbols can be determined based on the position of the DMRS in each symbol group and the position of the valid symbols in the aforementioned (K·L+N) symbols.

[0156] In this embodiment, K·L valid symbols are determined based on the number of transmissions K and the number of symbols L corresponding to each transmission carried in the time-domain resource allocation information of the PUSCH. Optionally, the determination of valid symbols begins with the starting symbol S, and when an invalid symbol is encountered, that symbol is skipped and the determination of the next valid symbol continues until all K·L valid symbols have been determined. Figure 9 As shown, L=7, K=4, the higher-layer parameters configure the position of invalid symbols, but the number of valid symbols transmitted by PUSCH is still 28. Figure 9 In the text, the dark gray filled rectangle is an invalid symbol. Figure 9 The PUSCH transmission includes 28 valid symbols and 4 invalid symbols interspersed between the first and last valid symbols.

[0157] This embodiment ensures the number of symbols used for PUSCH transmission, thereby improving the reliability of PUSCH transmission.

[0158] This application also proposes a method for determining DMRS resources. Figure 10 This is a flowchart illustrating a method 1000 for determining DMRS resources according to an embodiment of this application. This method can optionally be applied to... Figure 1 The system shown is not limited to this. The method includes at least a portion of the following.

[0159] S1010: The network device determines multiple symbols based on the number of transmissions of the channel and time-domain resource allocation information, wherein the multiple symbols include at least one symbol from at least two transmissions.

[0160] S1020: The network device determines the position of DMRS among the multiple symbols.

[0161] Optionally, the above-mentioned symbols may include valid symbols and invalid symbols; or, the above-mentioned symbols may include valid symbols.

[0162] Optionally, the aforementioned valid symbols include symbols used for transmission on the channel, and the aforementioned invalid symbols include symbols not used for transmission on the channel.

[0163] In some implementations, the position of the DMRS among the multiple symbols is determined according to predefined rules; and / or,

[0164] The position of the DMRS in the multiple symbols is determined based on the number of symbols contained in the multiple symbols, the configuration parameters, and the first correspondence between the DMRS symbol positions.

[0165] In some implementations, when multiple symbols include valid symbols and invalid symbols,

[0166] The position of the DMRS among the valid symbols in the multiple symbols is determined according to predefined rules; and / or,

[0167] The position of the DMRS in the multiple symbols is determined based on the number of valid symbols contained in the multiple symbols, the configuration parameters, and the second correspondence between the DMRS symbol positions.

[0168] In some implementations, the plurality of symbols are divided into at least two symbol groups;

[0169] The position of the DMRS in each symbol group is determined according to predefined rules; and / or, the position of the DMRS in each symbol group is determined according to the number of symbols contained in each symbol group, configuration parameters, and a third correspondence between the DMRS symbol positions.

[0170] In some implementations, when the plurality of symbols includes valid symbols and invalid symbols,

[0171] Divide the valid symbols among multiple symbols into at least two symbol groups;

[0172] The position of the DMRS in each symbol group is determined according to predefined rules; and / or, the position of the DMRS in each symbol group is determined according to the number of symbols contained in each symbol group, configuration parameters, and the fourth correspondence between the DMRS symbol positions.

[0173] Optionally, the above method further includes: the network device sending the above configuration parameters to the terminal device.

[0174] Optionally, the number of symbols in the above symbol groups may be the same or different.

[0175] Optionally, the above symbol group includes at least one symbol from the symbols corresponding to at least two transmissions.

[0176] Optionally, the above method further includes: the network device sending signaling indicating the symbol grouping method to the terminal device.

[0177] Optionally, the DMRS mentioned above includes a pre-DMRS; or, the DMRS mentioned above includes a pre-DMRS and an additional DMRS.

[0178] In some implementations, the number of symbols mentioned above is K·L; wherein,

[0179] K represents the number of transmissions through this channel;

[0180] L represents the number of symbols corresponding to each transmission, and L is carried in the aforementioned time-domain resource allocation information.

[0181] In some implementations, when the above-mentioned multiple symbols include valid symbols and invalid symbols, the number of valid symbols is K·L;

[0182] in,

[0183] K represents the number of transmissions through this channel;

[0184] L represents the number of symbols corresponding to each transmission, and L is carried in the time-domain resource allocation information.

[0185] Optionally, the aforementioned channels include PUSCH, PDSCH, or PUCCH.

[0186] This application also proposes a terminal device. Figure 11 This is a schematic diagram of the structure of a terminal device 1100 according to an embodiment of this application, including:

[0187] The first symbol determination module 1110 is used to determine multiple symbols based on the number of transmissions of the channel and time-domain resource allocation information, wherein the multiple symbols include at least one symbol among the symbols corresponding to at least two transmissions;

[0188] The first position determination module 1120 is used to determine the position of the demodulation reference signal DMRS in the plurality of symbols.

[0189] Optionally, in the embodiments of this application, the plurality of symbols includes valid symbols and invalid symbols; or, the plurality of symbols includes valid symbols.

[0190] Optionally, in this embodiment, the valid symbol includes symbols used for transmission on the channel, and the invalid symbol includes symbols not used for transmission on the channel.

[0191] Optionally, in this embodiment of the application, the first position determination module 1120 is used for:

[0192] The position of the DMRS among the multiple symbols is determined according to predefined rules; and / or,

[0193] The position of the DMRS in the multiple symbols is determined based on the number of symbols contained in the multiple symbols, the configuration parameters, and the first correspondence between the DMRS symbol positions.

[0194] Optionally, in this embodiment of the application, the first position determination module 1120 is used to: when the plurality of symbols includes valid symbols and invalid symbols,

[0195] The position of the DMRS among the valid symbols in the multiple symbols is determined according to predefined rules; and / or,

[0196] The position of the DMRS in the multiple symbols is determined based on the number of valid symbols contained in the multiple symbols, the configuration parameters, and the second correspondence between the DMRS symbol positions.

[0197] Optionally, in this embodiment of the application, the first position determination module 1120 is used for:

[0198] Divide the multiple symbols into at least two symbol groups;

[0199] The position of the DMRS in each symbol group is determined according to predefined rules; and / or, the position of the DMRS in each symbol group is determined according to the number of symbols contained in each symbol group, configuration parameters, and a third correspondence between the DMRS symbol positions.

[0200] Optionally, in this embodiment of the application, the first position determination module 1120 is used for:

[0201] When the multiple symbols include valid symbols and invalid symbols

[0202] Divide the valid symbols among the multiple symbols into at least two symbol groups;

[0203] The position of the DMRS in each symbol group is determined according to predefined rules; and / or, the position of the DMRS in each symbol group is determined according to the number of symbols contained in each symbol group, configuration parameters, and the fourth correspondence between the DMRS symbol positions.

[0204] Optionally, in the embodiments of this application, the number of symbols in the symbol group may be the same or different.

[0205] Optionally, in this embodiment of the application, the symbol group includes at least one symbol from at least two transmissions of corresponding symbols.

[0206] Optionally, in this embodiment of the application, the first position determination module 1120 divides the plurality of symbols into at least two symbol groups according to a predefined method and / or signaling indication.

[0207] Optionally, in this embodiment of the application, the first position determination module 1120 divides the valid symbols among the plurality of symbols into at least two symbol groups according to a predefined method and / or signaling indication.

[0208] Optionally, in this embodiment of the application, the number of symbols in the plurality of symbols is K·L; wherein,

[0209] K represents the number of transmissions through this channel;

[0210] The L represents the number of symbols corresponding to each transmission, and this L is carried in the time-domain resource allocation information.

[0211] Optionally, in this embodiment of the application, when the plurality of symbols includes valid symbols and invalid symbols, the number of valid symbols is K·L; wherein,

[0212] K represents the number of transmissions through this channel;

[0213] The L represents the number of symbols corresponding to each transmission, and this L is carried in the time-domain resource allocation information.

[0214] Optionally, in this embodiment of the application, the DMRS includes a pre-DMRS; or,

[0215] The DMRS includes a pre-DMRS and an additional DMRS.

[0216] Optionally, in this embodiment of the application, the channel includes PUSCH, PDSCH, or PUCCH.

[0217] It should be understood that the above and other operations and / or functions of the modules in the terminal device according to the embodiments of this application are respectively for implementing Figure 2 The corresponding procedures for the terminal devices in Method 200 are not described in detail here for the sake of brevity.

[0218] This application also proposes a network device. Figure 12 This is a schematic diagram of the network device 1200 according to an embodiment of this application, including:

[0219] The second symbol determination module 1210 is used to determine multiple symbols based on the number of transmissions of the channel and time-domain resource allocation information, wherein the multiple symbols include at least one symbol among the symbols corresponding to at least two transmissions.

[0220] The second position determination module 1220 is used to determine the position of the demodulation reference signal DMRS among the multiple symbols.

[0221] Optionally, in this embodiment of the application, the plurality of symbols includes valid symbols and invalid symbols; or,

[0222] These multiple symbols include valid symbols.

[0223] Optionally, in this embodiment, the valid symbol includes symbols used for transmission on the channel, and the invalid symbol includes symbols not used for transmission on the channel.

[0224] Optionally, in this embodiment of the application, the second position determination module 1220 is used for:

[0225] The position of the DMRS among the multiple symbols is determined according to predefined rules; and / or,

[0226] The position of the DMRS in the multiple symbols is determined based on the number of symbols contained in the multiple symbols, the configuration parameters, and the first correspondence between the DMRS symbol positions.

[0227] Optionally, in this embodiment of the application, the second position determination module 1220 is used to: when the plurality of symbols includes valid symbols and invalid symbols,

[0228] The position of the DMRS among the valid symbols in the multiple symbols is determined according to predefined rules; and / or,

[0229] The position of the DMRS in the multiple symbols is determined based on the number of valid symbols contained in the multiple symbols, the configuration parameters, and the second correspondence between the DMRS symbol positions.

[0230] Optionally, in this embodiment of the application, the second position determination module 1220 is used for:

[0231] Divide the multiple symbols into at least two symbol groups;

[0232] The position of the DMRS in each symbol group is determined according to predefined rules; and / or, the position of the DMRS in each symbol group is determined according to the number of symbols contained in each symbol group, configuration parameters, and a third correspondence between the DMRS symbol positions.

[0233] Optionally, in this embodiment of the application, the second position determination module 1220 is used for:

[0234] When the multiple symbols include valid symbols and invalid symbols

[0235] Divide the valid symbols among the multiple symbols into at least two symbol groups;

[0236] The position of the DMRS in each symbol group is determined according to predefined rules; and / or, the position of the DMRS in each symbol group is determined according to the number of symbols contained in each symbol group, configuration parameters, and the fourth correspondence between the DMRS symbol positions.

[0237] Optionally, such as Figure 13 As shown, the network device proposed in this application embodiment further includes a parameter sending module 1330, used to send the configuration parameters to the terminal device.

[0238] Optionally, in the embodiments of this application, the number of symbols in the symbol group may be the same or different.

[0239] Optionally, in this embodiment of the application, the symbol group includes at least one symbol from at least two transmissions of corresponding symbols.

[0240] Optionally, in this embodiment of the application, it further includes: a signaling sending module 1340, used to send the signaling indicating the symbol group division method to the terminal device.

[0241] Optionally, in this embodiment of the application, the DMRS includes a pre-DMRS; or,

[0242] The DMRS includes a pre-DMRS and an additional DMRS.

[0243] Optionally, in this embodiment of the application, the number of symbols in the plurality of symbols is K·L; wherein,

[0244] K represents the number of transmissions through this channel;

[0245] The L represents the number of symbols corresponding to each transmission, and this L is carried in the time-domain resource allocation information.

[0246] Optionally, in this embodiment of the application, when the plurality of symbols includes valid symbols and invalid symbols, the number of valid symbols is K·L; wherein,

[0247] K represents the number of transmissions through this channel;

[0248] The L represents the number of symbols corresponding to each transmission, and this L is carried in the time-domain resource allocation information.

[0249] Optionally, in this embodiment of the application, the channel includes a Physical Uplink Shared Channel (PUSCH), a Physical Downlink Shared Channel (PDSCH), or a Physical Uplink Control Channel (PUCCH).

[0250] It should be understood that the above and other operations and / or functions of the modules in the network device according to the embodiments of this application are respectively for implementing Figure 10 The corresponding procedures for network devices in Method 1000 are not detailed here for the sake of brevity.

[0251] Figure 14 This is a schematic structural diagram of a communication device 1400 according to an embodiment of this application. Figure 14 The communication device 1400 shown includes a processor 1410, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0252] Optionally, such as Figure 14 As shown, the communication device 1400 may further include a memory 1420. The processor 1410 can retrieve and run computer programs from the memory 1420 to implement the methods described in this embodiment.

[0253] The memory 1420 can be a separate device independent of the processor 1410, or it can be integrated into the processor 1410.

[0254] Optionally, such as Figure 14 As shown, the communication device 1400 may also include a transceiver 1430, and the processor 1410 may control the transceiver 1430 to communicate with other devices. Specifically, it may send information or data to other devices or receive information or data sent by other devices.

[0255] The transceiver 1430 may include a transmitter and a receiver. The transceiver 1430 may further include an antenna, and the number of antennas may be one or more.

[0256] Optionally, the communication device 1400 may be a terminal device in the embodiments of this application, and the communication device 1400 may implement the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0257] Optionally, the communication device 1400 may be a network device in the embodiments of this application, and the network device 1400 may implement the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0258] Figure 15 This is a schematic structural diagram of chip 1500 according to an embodiment of this application. Figure 15 The chip 1500 shown includes a processor 1510, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0259] Optionally, such as Figure 15 As shown, chip 1500 may further include memory 1520. Processor 1510 can retrieve and run computer programs from memory 1520 to implement the methods described in this embodiment.

[0260] The memory 1520 can be a separate device independent of the processor 1510, or it can be integrated into the processor 1510.

[0261] Optionally, the chip 1500 may also include an input interface 1530. The processor 1510 can control the input interface 1530 to communicate with other devices or chips; specifically, it can acquire information or data sent by other devices or chips.

[0262] Optionally, the chip 1500 may also include an output interface 1540. The processor 1510 can control the output interface 1540 to communicate with other devices or chips, specifically, to output information or data to other devices or chips.

[0263] Optionally, the chip can be applied to the terminal device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0264] Optionally, the chip can be applied to the network device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0265] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0266] The processors mentioned above can be general-purpose processors, digital signal processors (DSPs), field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), or other programmable logic devices, transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processors mentioned above can be microprocessors or any conventional processor.

[0267] The aforementioned memory can be volatile memory or non-volatile memory, or a combination of both. Non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM).

[0268] It should be understood that the above-described memory is exemplary and not a limiting description. For example, the memory in the embodiments of this application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DR RAM), etc. That is to say, the memory in the embodiments of this application is intended to include, but is not limited to, these and any other suitable types of memory.

[0269] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. This computer program product includes one or more computer instructions. When these computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. 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. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid-state drives (SSDs)).

[0270] It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply 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 this application.

[0271] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0272] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for determining demodulation reference signal resources, comprising: The terminal device determines multiple symbols based on the number of channel transmissions and time-domain resource allocation information. These multiple symbols include at least one symbol from at least two transmissions. The multiple symbols include valid symbols and invalid symbols. The number of valid symbols is K·L, where K is the number of channel transmissions, and L is the number of symbols corresponding to each transmission. L is indicated by the time-domain resource allocation information, which indicates the starting symbol for each transmission and the number of consecutive symbols L starting from the starting symbol. The multiple symbols include K·L valid symbols starting from the beginning of the first repeated channel transmission, and invalid symbols existing between the first and last valid symbols. There are multiple invalid symbols interspersed between the first and last valid symbols. The terminal device determines the position of the demodulation reference signal DMRS among the valid symbols in the plurality of symbols; The terminal device determines the position of the demodulation reference signal DMRS among the valid symbols in the plurality of symbols, including: determining the position of the DMRS among the valid symbols in the plurality of symbols according to a predefined rule; The DMRS includes a pre-set DMRS and an additional DMRS. The predefined rules include the symbol position of the pre-set DMRS and the interval between DMRS. The terminal device determines the symbol position of the pre-set DMRS in the valid symbols of the above multiple symbols according to the predefined rules, and determines the symbol position of the additional DMRS in the valid symbols and the number of additional DMRS according to the interval.

2. The method according to claim 1, wherein, The valid symbols include symbols used for transmission through the channel, and the invalid symbols include symbols not used for transmission through the channel.

3. The method according to claim 1, wherein, Furthermore, based on the number of symbols contained in the plurality of symbols, configuration parameters, and the first correspondence between the positions of the DMRS symbols, the position of the DMRS among the valid symbols in the plurality of symbols is determined.

4. The method according to claim 1, wherein, Furthermore, based on the number of valid symbols contained in the plurality of symbols, configuration parameters, and a second correspondence between the positions of the DMRS symbols, the position of the DMRS among the valid symbols in the plurality of symbols is determined.

5. The method according to claim 1, wherein, Divide the plurality of symbols into at least two symbol groups; The position of the DMRS in each of the symbol groups is also determined according to predefined rules; And / or, based on the number of symbols contained in each symbol group, configuration parameters, and a third correspondence between the DMRS symbol positions, the position of the DMRS in each symbol group is determined.

6. The method according to claim 1, wherein, Divide the valid symbols among the plurality of symbols into at least two symbol groups; The position of the DMRS in each of the symbol groups is also determined according to predefined rules; And / or, based on the number of symbols contained in each symbol group, configuration parameters, and the fourth correspondence of DMRS symbol positions, the position of the DMRS in each symbol group is determined.

7. The method according to claim 5 or 6, wherein, The number of symbols in the symbol group may be the same or different.

8. The method according to claim 5 or 6, wherein, The symbol group contains at least one symbol from the symbols that are transmitted at least twice.

9. The method according to claim 5, wherein, The terminal device divides the plurality of symbols into at least two symbol groups according to a predefined method and / or signaling instructions.

10. The method according to claim 6, wherein, The terminal device divides the valid symbols among the plurality of symbols into at least two symbol groups according to a predefined method and / or signaling indication.

11. The method according to claim 1, wherein, The channels include the Physical Uplink Shared Channel (PUSCH), the Physical Downlink Shared Channel (PDSCH), or the Physical Uplink Control Channel (PUCCH).

12. A method for determining demodulation reference signal resources, comprising: The network device determines multiple symbols based on the number of channel transmissions and time-domain resource allocation information. These multiple symbols include at least one symbol from at least two transmissions. The multiple symbols include valid symbols and invalid symbols. The number of valid symbols is K·L, where K is the number of channel transmissions, and L is the number of symbols corresponding to each transmission. L is carried in the time-domain resource allocation information, which indicates the starting symbol for each transmission and the number of consecutive symbols L starting from the starting symbol. The multiple symbols include K·L valid symbols starting from the beginning of the first repeated channel transmission, and invalid symbols existing between the first and last valid symbols. There are multiple invalid symbols interspersed between the first and last valid symbols. The network device determines the position of the demodulation reference signal DMRS among the valid symbols in the plurality of symbols; The network device determines the position of the demodulation reference signal DMRS among the valid symbols in the plurality of symbols, including: determining the position of the DMRS among the valid symbols in the plurality of symbols according to predefined rules; The DMRS includes a front DMRS and an additional DMRS. The predefined rules include the symbol position of the front DMRS and the interval between DMRSs. The network device determines the symbol position of the front DMRS in the valid symbols of the above multiple symbols according to the predefined rules, and determines the symbol position of the additional DMRS in the valid symbols and the number of additional DMRSs according to the interval.

13. The method according to claim 12, wherein, The valid symbols include symbols used for transmission through the channel, and the invalid symbols include symbols not used for transmission through the channel.

14. The method according to claim 12, wherein, Furthermore, based on the number of symbols contained in the plurality of symbols, configuration parameters, and the first correspondence between the positions of the DMRS symbols, the position of the DMRS among the valid symbols in the plurality of symbols is determined.

15. The method according to claim 12, wherein, Furthermore, based on the number of valid symbols contained in the plurality of symbols, configuration parameters, and a second correspondence between the positions of the DMRS symbols, the position of the DMRS among the valid symbols in the plurality of symbols is determined.

16. The method according to claim 12, wherein, Divide the plurality of symbols into at least two symbol groups; The position of the DMRS in each of the symbol groups is also determined according to predefined rules; And / or, based on the number of symbols contained in each symbol group, configuration parameters, and a third correspondence between the DMRS symbol positions, the position of the DMRS in each symbol group is determined.

17. The method according to claim 12, wherein, Divide the valid symbols among the plurality of symbols into at least two symbol groups; The position of the DMRS in each of the symbol groups is also determined according to predefined rules; And / or, based on the number of symbols contained in each symbol group, configuration parameters, and the fourth correspondence of DMRS symbol positions, the position of the DMRS in each symbol group is determined.

18. The method according to any one of claims 14 to 17, further comprising: The network device sends the configuration parameters to the terminal device.

19. The method according to claim 16 or 17, wherein, The number of symbols in the symbol group may be the same or different.

20. The method according to claim 16 or 17, wherein, The symbol group contains at least one symbol from the symbols that are transmitted at least twice.

21. The method according to claim 16 or 17, further comprising: The network device will send signaling indicating the symbol grouping method to the terminal device.

22. The method according to claim 12, wherein, The channels include the Physical Uplink Shared Channel (PUSCH), the Physical Downlink Shared Channel (PDSCH), or the Physical Uplink Control Channel (PUCCH).

23. A terminal device, comprising: The first symbol determination module is used to determine multiple symbols based on the number of transmissions of the channel and time-domain resource allocation information. The multiple symbols include at least one symbol from at least two transmissions. The multiple symbols include valid symbols and invalid symbols. The number of valid symbols is K·L, where K is the number of transmissions of the channel, and L is the number of symbols corresponding to each transmission. L is indicated by the time-domain resource allocation information, which indicates the starting symbol of each transmission and the number L of consecutive symbols starting from the starting symbol. The multiple symbols include K·L valid symbols starting from the beginning of the first repeated transmission of the channel, and invalid symbols existing between the first and last valid symbols. There are multiple invalid symbols interspersed between the first and last valid symbols. The first position determination module is used to determine the position of the demodulation reference signal DMRS among the valid symbols in the plurality of symbols; The first position determination module determines the position of the DMRS among the valid symbols in the plurality of symbols according to a predefined rule; wherein the DMRS includes a preceding DMRS and an additional DMRS, the predefined rule includes the symbol position of the preceding DMRS and the interval between DMRSs, the first position determination module determines the symbol position of the preceding DMRS among the valid symbols in the plurality of symbols according to the predefined rule, and determines the symbol position of the additional DMRS and the number of additional DMRSs among the valid symbols according to the interval.

24. The terminal device according to claim 23, wherein, The valid symbols include symbols used for transmission through the channel, and the invalid symbols include symbols not used for transmission through the channel.

25. The terminal device according to claim 23, wherein, The first position determination module is also used for: Based on the number of symbols contained in the plurality of symbols, configuration parameters, and the first correspondence between the DMRS symbol positions, the position of the DMRS among the valid symbols in the plurality of symbols is determined.

26. The terminal device according to claim 23, wherein, The first position determination module is also used for: The position of the DMRS among the valid symbols in the plurality of symbols is determined based on the number of valid symbols contained in the plurality of symbols, the configuration parameters, and the second correspondence between the DMRS symbol positions.

27. The terminal device according to claim 23, wherein, The first position determination module is also used for: Divide the plurality of symbols into at least two symbol groups; The position of the DMRS in each of the symbol groups is determined according to predefined rules; and / or, the position of the DMRS in each of the symbol groups is determined according to the number of symbols contained in each symbol group, configuration parameters, and a third correspondence between the DMRS symbol positions.

28. The terminal device according to claim 23, wherein, The first position determination module is also used for: Divide the valid symbols among the plurality of symbols into at least two symbol groups; The position of the DMRS in each of the symbol groups is determined according to predefined rules; And / or, based on the number of symbols contained in each symbol group, configuration parameters, and the fourth correspondence of DMRS symbol positions, the position of the DMRS in each symbol group is determined.

29. The terminal device according to claim 27 or 28, wherein, The number of symbols in the symbol group may be the same or different.

30. The terminal device according to claim 27 or 28, wherein, The symbol group contains at least one symbol from the symbols that are transmitted at least twice.

31. The terminal device according to claim 27, wherein, The first position determination module divides the plurality of symbols into at least two symbol groups according to a predefined method and / or signaling indication.

32. The terminal device according to claim 28, wherein, The first position determination module divides the valid symbols among the plurality of symbols into at least two symbol groups according to a predefined method and / or signaling indication.

33. The terminal device according to claim 23, wherein, The channels include the Physical Uplink Shared Channel (PUSCH), the Physical Downlink Shared Channel (PDSCH), or the Physical Uplink Control Channel (PUCCH).

34. A network device, comprising: The second symbol determination module is used to determine multiple symbols based on the number of transmissions of the channel and time-domain resource allocation information. The multiple symbols include at least one symbol from at least two transmissions. The multiple symbols include valid symbols and invalid symbols. The number of valid symbols is K·L, where K is the number of transmissions of the channel, and L is the number of symbols corresponding to each transmission. L is indicated by the time-domain resource allocation information, which indicates the starting symbol of each transmission and the number L of consecutive symbols starting from the starting symbol. The multiple symbols include K·L valid symbols starting from the beginning of the first repeated transmission of the channel, and invalid symbols existing between the first and last valid symbols. There are multiple invalid symbols interspersed between the first and last valid symbols. The second position determination module is used to determine the position of the demodulation reference signal DMRS among the valid symbols in the plurality of symbols; The second position determination module determines the position of the DMRS among the valid symbols in the plurality of symbols according to a predefined rule; wherein the DMRS includes a preceding DMRS and an additional DMRS, the predefined rule includes the symbol position of the preceding DMRS and the interval between DMRSs, the second position determination module determines the symbol position of the preceding DMRS among the valid symbols in the plurality of symbols according to the predefined rule, and determines the symbol position of the additional DMRS and the number of additional DMRSs among the valid symbols according to the interval.

35. The network device according to claim 34, wherein, The valid symbols include symbols used for transmission through the channel, and the invalid symbols include symbols not used for transmission through the channel.

36. The network device according to claim 34, wherein, The second position determination module is also used for: Based on the number of symbols contained in the plurality of symbols, configuration parameters, and the first correspondence between the DMRS symbol positions, the position of the DMRS among the valid symbols in the plurality of symbols is determined.

37. The network device according to claim 34, wherein, The second position determination module is also used for: The position of the DMRS among the valid symbols in the plurality of symbols is determined based on the number of valid symbols contained in the plurality of symbols, the configuration parameters, and the second correspondence between the DMRS symbol positions.

38. The network device according to claim 34, wherein, The second position determination module is also used for: Divide the plurality of symbols into at least two symbol groups; The position of the DMRS in each of the symbol groups is determined according to predefined rules; and / or, the position of the DMRS in each of the symbol groups is determined according to the number of symbols contained in each symbol group, configuration parameters, and a third correspondence between the DMRS symbol positions.

39. The network device according to claim 34, wherein, The second position determination module is also used for: When the plurality of symbols includes valid symbols and invalid symbols. Divide the valid symbols among the plurality of symbols into at least two symbol groups; The position of the DMRS in each of the symbol groups is determined according to predefined rules; And / or, based on the number of symbols contained in each symbol group, configuration parameters, and the fourth correspondence of DMRS symbol positions, the position of the DMRS in each symbol group is determined.

40. The network device according to any one of claims 36 to 39, further comprising: The parameter sending module is used to send the configuration parameters to the terminal device.

41. The network device according to claim 38 or 39, wherein, The number of symbols in the symbol group may be the same or different.

42. The network device according to claim 38 or 39, wherein, The symbol group contains at least one symbol from the symbols that are transmitted at least twice.

43. The network device according to claim 38 or 39, further comprising: The signaling sending module is used to send signaling indicating the symbol grouping method to the terminal device.

44. The network device according to claim 34, wherein, The channels include the Physical Uplink Shared Channel (PUSCH), the Physical Downlink Shared Channel (PDSCH), or the Physical Uplink Control Channel (PUCCH).

45. A terminal device, comprising: A processor and a memory, the memory being used to store a computer program, the processor being used to invoke and run the computer program stored in the memory to perform the method as described in any one of claims 1 to 11.

46. ​​A network device, comprising: A processor and a memory, the memory being used to store a computer program, the processor being used to invoke and run the computer program stored in the memory to perform the method as described in any one of claims 12 to 22.

47. A chip, comprising: A processor for retrieving and running a computer program from memory, causing a device on which the chip is mounted to perform the method as described in any one of claims 1 to 11.

48. A chip, comprising: A processor for retrieving and running a computer program from memory, causing a device on which the chip is mounted to perform the method as described in any one of claims 12 to 22.

49. A computer-readable storage medium for storing a computer program that causes a computer to perform the method as claimed in any one of claims 1 to 11.

50. A computer-readable storage medium for storing a computer program that causes a computer to perform the method as claimed in any one of claims 12 to 22.

51. A computer program product comprising computer program instructions that cause a computer to perform the method as described in any one of claims 1 to 11.

52. A computer program product comprising computer program instructions that cause a computer to perform the method as claimed in any one of claims 12 to 22.

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