Method for reference signal configuration

Abstract

A wireless communication method used in a transmitting node is disclosed. The wireless communication method includes transmitting a reference signal to a receiving node, the reference signal including N patterns allocated to at least one scheduling unit, wherein N is an integer greater than 1.

Description

Technical Field

[0001] This document relates generally to wireless communications. Background Art

[0002] In existing systems, the design of reference signals (RS), such as demodulation reference signals (DM-RS), is mainly aimed at transmission scenarios with different channel conditions to ensure system efficiency. For example, within the resources occupied by the scheduled channel, the same DM-RS pattern is applied to each scheduling unit (e.g., resource blocks RB and time slots or sub-time slots in existing specifications). In other words, with respect to the time domain behavior of DM-RS, the same DM-RS pattern is repeated across time slots in the case of aggregated transmission or repetition.

[0003] More specifically, in 5G, many parameters (e.g., DM-RS type, number of preceding DM-RS, number of additional DM-RS) are used to define the repetition pattern and are configured by higher layer signaling. Note that the number of supported DM-RS ports is also determined by the code division multiple access (CDM) group by introducing orthogonal cover code (OCC) or cyclic shift (CS) shifts in time / frequency. The capacity of the current DM-RS design supports 8 and 12 ports for DM-RS type 1 and type 2, respectively. In other cases, the DM-RS position is fixed within the allocated area. For example, in Long Term Evolution Category M1 (LTE-M), DM-RS is always transmitted in the resource with a symbol index equal to 3. In narrowband Internet of Things (NB-IoT), the allocated time domain resources of the DM-RS of the physical uplink shared channel (PUSCH) are coupled with the corresponding format of the PUSCH.

[0004] When analyzing channel conditions, they are characterized in two main aspects: frequency selectivity and time-varying behavior. Frequency selectivity is determined by the multipath conditions. When there are more multipaths, more channels are available in the frequency domain. Time-varying behavior is determined by both multipath and mobility. Note that as the number of multipaths increases, frequency offset estimation becomes more difficult. Summary of the invention

[0005] This document relates to methods, systems and devices for configuring reference signals, and in particular for configuring reference signals allocated to at least one scheduling unit.

[0006] The present disclosure relates to a wireless communication method used in a transmitting node. The wireless communication method includes transmitting a reference signal to a receiving node, the reference signal including N patterns allocated to at least one scheduling unit, wherein N is an integer greater than 1.

[0007] Various embodiments may preferably implement the following features:

[0008] Preferably, at least one scheduling unit refers to resources including at least one of a group of resource blocks, a group of symbols, a group of time slots, a group of repetition units, a repetition unit, a frame or a time slot.

[0009] Preferably, at least one scheduling unit refers to resources allocated via at least one scheduling signaling.

[0010] Preferably, the reference signal refers to at least one of a demodulation reference signal, a channel state information reference signal, a phase tracking reference signal, a positioning reference signal or a sounding reference signal.

[0011] Preferably, the N patterns are different from each other.

[0012] Preferably, at least one parameter of at least one of a reference signal type, a pre-reference signal configuration, an additional reference signal configuration, a time domain position of a reference signal, or a frequency position of a reference signal is configured for each of the N modes.

[0013] Preferably, at least one parameter of at least one of a reference signal type, a pre-reference signal configuration, an additional reference signal configuration, a time domain position of a reference signal, or a frequency position of a reference signal for a first mode among the N modes is determined by at least one of the following:

[0014] The corresponding parameters of the second mode among the N modes,

[0015] comprising a resource index of a reference signal associated with the first mode and the second mode, or

[0016] Scheduling information for data corresponding to reference signals associated with the first pattern and the second pattern.

[0017] Preferably, a third mode among the N modes is determined by disabling the entire reference signal in the fourth mode.

[0018] Preferably, a fifth pattern among the N patterns includes a portion of a reference signal in a sixth pattern among the N patterns.

[0019] Preferably, the reference signal in the fifth mode is determined by disabling or selecting a fraction of the reference signal in the sixth mode.

[0020] Preferably, the disabled or selected portion of the reference signal in the sixth mode is determined based on a factor.

[0021] Preferably, the disabled or selected portion of the reference signal in the sixth mode is located in the upper half or lower half of the second mode.

[0022] Preferably, each of the at least one scheduling unit corresponds to one of the N modes based on a bitmap.

[0023] Preferably, each of the at least one scheduling unit corresponds to one of the N modes based on a predetermined rule.

[0024] Preferably, scheduling units with odd-numbered indices correspond to the same pattern, or scheduling units with even-numbered indices correspond to the same pattern.

[0025] Preferably, scheduling units carrying data having the same scheduling information correspond to the same mode.

[0026] Preferably, scheduling units that belong to the same group and carry data with scheduling information correspond to the same mode.

[0027] Preferably, the at least one scheduling unit comprises a basic pattern group, which spans L scheduling units and comprises N patterns, wherein L is an integer greater than or equal to N.

[0028] Preferably, the basic pattern group is repeated over M scheduling units, where M is an integer greater than L.

[0029] Preferably, the first scheduling unit of the basic mode group carries a reference signal.

[0030] Preferably, a first scheduling unit of the at least one scheduling unit carries a reference signal.

[0031] Preferably, the indication to enable the reference signal is received by the transmitting node from the receiving node or transmitted to the receiving node.

[0032] Preferably, a configuration associated with the reference signal is received by a transmitting node from a receiving node or transmitted to a receiving node, wherein the configuration includes at least one of a factor, a bitmap, the number of scheduling units in a single repetition unit, a pre-reference signal configuration for N modes, an additional reference signal configuration for N modes, a time domain position of a reference signal, or a frequency position of a reference signal.

[0033] Preferably, scheduling information of data associated with the reference signal is received by a transmitting node from a receiving node or transmitted to a receiving node, wherein the scheduling information includes at least one of a redundancy version, a new data indicator, a modulation and coding scheme, a transmission configuration indication, a quasi-co-site relationship, a resource allocation type or a channel format.

[0034] The present disclosure relates to a wireless communication method used in a receiving node. The wireless communication method includes receiving a reference signal including N patterns allocated to at least one scheduling unit from a transmitting node, wherein N is an integer greater than 1.

[0035] Various embodiments may preferably implement the following features:

[0036] Preferably, at least one scheduling unit refers to resources including at least one of a group of resource blocks, a group of symbols, a group of time slots, a group of repetition units, a repetition unit, a frame or a time slot.

[0037] Preferably, at least one scheduling unit refers to resources allocated via at least one scheduling signaling.

[0038] Preferably, the reference signal refers to at least one of a demodulation reference signal, a channel state information reference signal, a phase tracking reference signal, a positioning reference signal or a sounding reference signal.

[0039] Preferably, the N patterns are different from each other.

[0040] Preferably, at least one parameter of at least one of a reference signal type, a pre-reference signal configuration, an additional reference signal configuration, a time domain position of a reference signal, or a frequency position of a reference signal is configured for each of the N modes.

[0041] Preferably, at least one parameter of at least one of a reference signal type, a pre-reference signal configuration, an additional reference signal configuration, a time domain position of a reference signal, or a frequency position of a reference signal for a first mode among the N modes is determined by at least one of the following:

[0042] The corresponding parameters of the second mode among the N modes,

[0043] comprising a resource index of a reference signal associated with the first mode and the second mode, or

[0044] Scheduling information for data corresponding to reference signals associated with the first pattern and the second pattern.

[0045] Preferably, a third mode among the N modes is determined by disabling the entire reference signal in the fourth mode.

[0046] Preferably, a fifth pattern among the N patterns includes a portion of a reference signal in a sixth pattern among the N patterns.

[0047] Preferably, the reference signal in the fifth mode is determined by disabling or selecting a small portion of the reference signal in the sixth mode.

[0048] Preferably, the disabled or selected portion of the reference signal in the sixth mode is determined based on a factor.

[0049] Preferably, the disabled or selected portion of the reference signal of the sixth pattern is located in the upper half or lower half of the second pattern.

[0050] Preferably, each of the at least one scheduling unit corresponds to one of the N modes based on a bitmap.

[0051] Preferably, each of the at least one scheduling unit corresponds to one of the N modes based on a predetermined rule.

[0052] Preferably, scheduling units with odd-numbered indices correspond to the same pattern, or scheduling units with even-numbered indices correspond to the same pattern.

[0053] Preferably, scheduling units carrying data having the same scheduling information correspond to the same mode.

[0054] Preferably, scheduling units that belong to the same group and carry data with scheduling information correspond to the same mode.

[0055] Preferably, at least one scheduling unit comprises a basic pattern set, which spans L scheduling units and comprises N patterns, wherein L is an integer greater than or equal to N.

[0056] Preferably, the basic pattern group is repeated over M scheduling units, where M is an integer greater than L.

[0057] Preferably, the first scheduling unit of the basic mode group carries a reference signal.

[0058] Preferably, a first scheduling unit of the at least one scheduling unit carries a reference signal.

[0059] Preferably, the indication of enabling the reference signal is transmitted by the receiving node to the transmitting node or received from the transmitting node.

[0060] Preferably, a configuration associated with the reference signal is transmitted by a receiving node to a transmitting node or received from a transmitting node, wherein the configuration includes at least one of a factor, a bitmap, a number of scheduling units in a single repetition unit, a pre-reference signal configuration of N modes, an additional reference signal configuration of N modes, a time domain position of a reference signal, or a frequency position of a reference signal.

[0061] Preferably, scheduling information of data associated with the reference signal is transmitted by a receiving node to a transmitting node or received from a transmitting node, wherein the scheduling information includes at least one of a redundancy version, a new data indicator, a modulation and coding scheme, a transmission configuration indication, a quasi-co-location relationship, a resource allocation type or a channel format.

[0062] The present disclosure relates to a wireless communication method used in a transmitting node. The wireless communication method includes transmitting data to a receiving node and a reference signal including N patterns allocated to at least one scheduling unit, where N is an integer greater than 1, and where a transmission block size of the data is determined based on the number of resource elements associated with the N patterns.

[0063] Various embodiments may preferably implement the following features:

[0064] Preferably, the number of resource elements associated with the N patterns is determined based on the number of resource elements carrying reference signals in a pattern having the highest reference signal density among the N patterns.

[0065] Preferably, the number of resource elements associated with the N patterns is determined based on an average value of the number of resource elements carrying reference signals in each of the N patterns.

[0066] Preferably, the number of resource elements associated with the N patterns is determined based on the number and ratio of resource elements carrying reference signals in a pattern having the highest reference signal density among the N patterns.

[0067] Preferably, the number of resource elements associated with the N patterns is determined based on the number of resource elements carrying reference signals in a pattern having the lowest reference signal density among the N patterns.

[0068] Preferably, the N patterns form at least one basic pattern group across L scheduling units, where L is an integer greater than or equal to N, wherein the basic pattern group is repeated over M scheduling units, where M is an integer greater than L, and wherein the transport block size is determined per basic pattern group or for all M scheduling units.

[0069] Preferably, a transport block size is determined for all M scheduling units, and a modulation and coding scheme is configured for the M scheduling units.

[0070] Preferably, a transport block size is determined per basic mode group, and a modulation and coding scheme is configured per basic mode group.

[0071] Preferably, at least one scheduling unit refers to resources including at least one of a group of resource blocks, a group of symbols, a group of time slots, a group of repetition units, a repetition unit, a frame or a time slot.

[0072] Preferably, the reference signal refers to at least one of a demodulation reference signal, a channel state information reference signal, a phase tracking reference signal, a positioning reference signal or a sounding reference signal.

[0073] The present disclosure relates to a wireless communication method used in a receiving node. The wireless communication method includes receiving data from a transmitting node and a reference signal including N patterns allocated to at least one scheduling unit, where N is an integer greater than 1, and where a transport block size of the data is determined based on the number of resource elements associated with the N patterns.

[0074] Various embodiments may preferably implement the following features:

[0075] Preferably, the number of resource elements associated with the N patterns is determined based on the number of resource elements carrying reference signals in a pattern having the highest reference signal density among the N patterns.

[0076] Preferably, the number of resource elements associated with the N patterns is determined based on an average value of the number of resource elements carrying reference signals in each of the N patterns.

[0077] Preferably, the number of resource elements associated with the N patterns is determined based on the number and ratio of resource elements carrying reference signals in a pattern having the highest reference signal density among the N patterns.

[0078] Preferably, the number of resource elements associated with the N patterns is determined based on the number of resource elements carrying reference signals in a pattern having the lowest reference signal density among the N patterns.

[0079] Preferably, the N patterns form at least one basic pattern group across L scheduling units, where L is an integer greater than or equal to N, wherein the basic pattern group is repeated over M scheduling units, where M is an integer greater than L, and wherein the transport block size is determined per basic pattern group or for all M scheduling units.

[0080] Preferably, the transport block size is determined for all M scheduling units, and the modulation and coding scheme is configured for the M scheduling units.

[0081] Preferably, a transport block size is determined per basic mode group, and a modulation and coding scheme is configured per basic mode group.

[0082] Preferably, at least one scheduling unit refers to resources including at least one of a group of resource blocks, a group of symbols, a group of time slots, a group of repetition units, a repetition unit, a frame or a time slot.

[0083] Preferably, the reference signal refers to at least one of a demodulation reference signal, a channel state information reference signal, a phase tracking reference signal, a positioning reference signal or a sounding reference signal.

[0084] The present disclosure relates to a transmitting node. The transmitting node includes a communication unit configured to transmit a reference signal including N patterns allocated to at least one scheduling unit to a receiving node, where N is an integer greater than 1.

[0085] Various embodiments may preferably implement the following features:

[0086] Preferably, the transmitting node further comprises a processor configured to execute any of the aforementioned wireless communication methods.

[0087] The present disclosure relates to a receiving node. The receiving node includes a communication unit configured to receive a reference signal including N patterns allocated to at least one scheduling unit from a transmitting node, wherein N is an integer greater than 1.

[0088] Various embodiments may preferably implement the following features:

[0089] Preferably, the receiving node further comprises a processor configured to execute the wireless communication method of any of the aforementioned methods.

[0090] The present disclosure relates to a transmitting node. The transmitting node includes a communication unit configured to transmit data and a reference signal including N patterns allocated to at least one scheduling unit to a receiving node, wherein N is an integer greater than 1, and a transmission block size of the data is determined based on the number of resource elements associated with the N patterns.

[0091] Various embodiments may preferably implement the following features:

[0092] Preferably, the transmitting node further comprises a processor configured to execute any of the aforementioned wireless communication methods.

[0093] The present disclosure relates to a receiving node. The receiving node includes a communication unit configured to receive data from a transmitting node and a reference signal including N patterns allocated to at least one scheduling unit, where N is an integer greater than 1, and a transmission block size of the data is determined based on the number of resource elements associated with the N patterns.

[0094] Various embodiments may preferably implement the following features:

[0095] Preferably, the receiving node further comprises a processor configured to execute the wireless communication method of any of the aforementioned methods.

[0096] The present disclosure relates to a computer program product, which includes a computer-readable program medium code stored thereon, and when the code is executed by a processor, the processor implements the wireless communication method of any of the above methods.

[0097] The exemplary embodiments disclosed herein are intended to provide features that will become apparent by reference to the following description when taken in conjunction with the accompanying drawings. According to various embodiments, exemplary systems, methods, devices, and computer program products are disclosed herein. However, it should be understood that these embodiments are presented by way of example and not limitation, and it will be apparent to those of ordinary skill in the art who have read this disclosure that various modifications may be made to the disclosed embodiments while remaining within the scope of this disclosure.

[0098] Therefore, the present disclosure is not limited to the exemplary embodiments and applications described and illustrated herein. In addition, the specific order and / or hierarchy of steps in the methods disclosed herein are merely exemplary methods. Based on design preferences, the specific order or hierarchy of steps of the disclosed methods or processes can be rearranged while remaining within the scope of the present disclosure. Therefore, it will be understood by those of ordinary skill in the art that the methods and techniques disclosed herein present various steps or actions in a sample order, and unless otherwise expressly stated, the present disclosure is not limited to the specific order or hierarchy presented.

[0099] The above and other aspects and embodiments thereof will be described in more detail in the drawings, the description and the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0100] Figure 1 An example of a schematic diagram of a wireless terminal according to an embodiment of the present disclosure is shown.

[0101] Figure 2 An example of a schematic diagram of a wireless network node according to an embodiment of the present disclosure is shown.

[0102] Figure 3 A reference signal pattern according to an embodiment of the present disclosure is shown.

[0103] Figure 4 A schematic diagram showing reference signals across physical resource blocks according to an embodiment of the present disclosure is shown.

[0104] Figure 5 A reference signal pattern according to an embodiment of the present disclosure is shown.

[0105] Figure 6 A schematic diagram showing reference signals across physical resource blocks according to an embodiment of the present disclosure is shown.

[0106] Figure 7 A schematic diagram showing a reference signal pattern according to an embodiment of the present disclosure is shown.

[0107] Figure 8 A schematic diagram showing reference signals across physical resource blocks according to an embodiment of the present disclosure is shown.

[0108] Fig. 9 A schematic diagram showing a reference signal pattern across physical resource blocks according to an embodiment of the present disclosure is shown.

[0109] Fig.10 A schematic diagram of a reference signal across time slots according to an embodiment of the present disclosure is shown.

[0110] Fig.11 A schematic diagram of a reference signal across time slots according to an embodiment of the present disclosure is shown.

[0111] Fig.12 A schematic diagram of a reference signal across time slots according to an embodiment of the present disclosure is shown.

[0112] Fig.13 A schematic diagram of a reference signal across time slots according to an embodiment of the present disclosure is shown.

[0113] Fig.14 A schematic diagram of a reference signal across time slots according to an embodiment of the present disclosure is shown.

[0114] Fig.15 A schematic diagram of a reference signal across time slots according to an embodiment of the present disclosure is shown.

[0115] Fig.16 A schematic diagram of a reference signal across time slots according to an embodiment of the present disclosure is shown.

[0116] Fig.17A and 17B A schematic diagram of a reference signal across time slots according to an embodiment of the present disclosure is shown.

[0117] Fig.18A and 18B A schematic diagram of a reference signal across time slots according to an embodiment of the present disclosure is shown.

[0118] Fig.19 A schematic diagram of reference signals across time slots and physical resource blocks according to an embodiment of the present disclosure is shown.

[0119] Fig. 20 A schematic diagram of reference signals across time slots and physical resource blocks according to an embodiment of the present disclosure is shown.

[0120] Fig.21 A flow chart showing a process according to an embodiment of the present disclosure is shown.

[0121] Fig. 22 A flow chart showing a process according to an embodiment of the present disclosure is shown.

[0122] Fig.23 A flow chart showing a process according to an embodiment of the present disclosure is shown.

[0123] Fig.24 A flow chart showing a process according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0124] Figure 1A schematic diagram of a wireless terminal 10 according to an embodiment of the present disclosure is provided. The wireless terminal 10 may be a user equipment (UE), a mobile phone, a laptop, a tablet computer, an e-book, or a portable computer system, and is not limited thereto. The wireless terminal 10 may include a processor 100, such as a microprocessor or an application-specific integrated circuit (ASIC), a storage unit 110, and a communication unit 120. The storage unit 110 may be any data storage device that stores program code 112 accessed and executed by the processor 100. Embodiments of the storage unit 110 include, but are not limited to, a subscriber identity module (SIM), a read-only memory (ROM), a flash memory, a random access memory (RAM), a hard disk, and an optical data storage device. The communication unit 120 may be a transceiver and is used to transmit and receive signals (e.g., messages or data packets) based on the processing results of the processor 100. In one embodiment, the communication unit 120 communicates with the computer via a communication device. Figure 1 At least one antenna 122 is shown for transmitting and receiving signals.

[0125] In one embodiment, the storage unit 110 and the program code 112 may be omitted, and the processor 100 may include the storage unit with the stored program code.

[0126] The processor 100 may implement any one of the steps of the exemplary embodiments on the wireless terminal 10 , for example, by executing the program code 112 .

[0127] The communication unit 120 may be a transceiver. The communication unit 120 may (alternatively or additionally) combine a transmitting unit and a receiving unit configured to transmit and receive signals to and from a wireless network node (eg a base station), respectively.

[0128] Figure 2A schematic diagram of a radio network node 20 according to an embodiment of the present disclosure is provided. The radio network node 20 may be a satellite, a base station (BS), a network entity, a mobility management entity (MME), a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), a radio access network (RAN), a next generation RAN (NG-RAN), a data network, a core network, or a radio network controller (RNC), and is not limited thereto. In addition, the radio network node 20 may include (execute) at least one network function, such as an access and mobility management function (AMF), a session management function (SMF), a user location function (UPF), a policy control function (PCF), an application function (AF), etc. The radio network node 20 may include a processor 200, such as a microprocessor or an ASIC, a storage unit 210, and a communication unit 220. The storage unit 210 may be any data storage device that stores a program code 212 accessed and executed by the processor 200. Examples of the storage unit 210 include, but are not limited to, a SIM, a ROM, a flash memory, a RAM, a hard disk, and an optical data storage device. The communication unit 220 may be a transceiver and is used to transmit and receive signals (eg, messages or data packets) according to the processing results of the processor 200. In one example, the communication unit 220 transmits and receives signals (eg, messages or data packets) via Figure 2 At least one antenna 222 is shown for transmitting and receiving signals.

[0129] In one embodiment, storage unit 210 and program code 212 may be omitted. Processor 200 may include a storage unit with stored program code.

[0130] The processor 200 may implement any of the steps described in the exemplary embodiments on the radio network node 20 , for example, via executing the program code 212 .

[0131] The communication unit 220 may be a transceiver. The communication unit 220 may (alternatively or additionally) combine a transmitting unit and a receiving unit configured to transmit and receive signals to and from a wireless terminal (eg, UE), respectively.

[0132] In the present disclosure, a reference signal (RS) may be any signal used to estimate (e.g., determine, detect, or measure) channel conditions, such as a demodulation reference signal (DM-RS), a phase tracking reference signal (PTRS), a positioning reference signal (PRS), a sounding reference signal (SRS), a channel state information reference signal (CSI-RS), etc. For the sake of brevity, the following embodiments take DM-RS as an example.

[0133] In the present disclosure, DM-RS can be used for physical downlink shared channel (PDSCH), physical uplink shared channel (PUSCH), physical downlink control channel (PDCCH) and / or side link channel. In other words, DM-RS can be transmitted from UE to BS, from BS to UE, or from UE to another UE.

[0134] In one embodiment, the RS may be allocated to one or more scheduling units, wherein the one or more scheduling units include at least one of a group of resource blocks, a group of symbols, a repetition unit, a group of repetition units, a time slot, a group of time slots, or a frame.

[0135] In the present disclosure, a resource block (RB) may be a physical resource block (PRB), and vice versa.

[0136] In one embodiment, it may be desirable to reduce RS overhead to improve spectral efficiency. For example, in the case of non-terrestrial networks (NTNs) implementing directional antennas and / or forward / backward compensation of frequency offsets and / or implementing lower mobility (e.g., geostationary orbit (GEO)) or terrestrial networks (TNs) with lower UE mobility and / or lower scheduling modulation and coding schemes (MCS) (e.g., for cell edge UEs or areas with requirements for coverage extension or machine type communication (MTC) type UEs), RS overhead reduction may be considered.

[0137] More details of RS overhead reduction are discussed in the following embodiments. Please note that those skilled in the art should realize that the following embodiments may be implemented individually or in any possible combination.

[0138] Embodiment 1:

[0139] In an embodiment, RS overhead reduction may be implemented in the frequency domain. For example, RS overhead reduction may be applied at different frequency resource levels (eg, different granularities).

[0140] In an embodiment, RS overhead reduction is applied at the resource element (RE) level. That is, RS overhead reduction is implemented at a specific granularity of RE. In this embodiment, reference signals carried by specific REs in each RB (e.g., PRB) may be disabled.

[0141] Figure 3 FIG. 1 shows a schematic diagram of a reduced DM-RS pattern according to an embodiment of the present disclosure. Figure 3, a DM-RS pattern of type 1 within a PRB is shown on the left, where blocks with different textures are REs with DM-RSs corresponding to different DM-RS ports, and REs with the same texture carry DM-RSs for the same DM-RS port. In this embodiment, the DM-RSs on the middle 4 REs of the DM-RS pattern of type 1 within the PRB are disabled to reduce RS overhead. In other words, the reduced DM-RS pattern includes a portion (e.g., a small portion or subset) of the reference signals in the DM-RS pattern of type 1 within a single PRB. In one embodiment, the reference signal portion (e.g., a small portion) included in the reduced DM-RS pattern of the original DM-RS of type 1 is determined by disabling a small portion of the reference signals of the DM-RS of type 1 (e.g., disabling the reference signals on the 4 middle REs within a single PRB) or selecting a small portion of the reference signals of the DM-RS of type 1 (e.g., selecting the reference signals on the top 4 REs and the bottom 4 REs of the DM-RS of type 1 within a single PRB). In one embodiment, the disabled or selected reference signals are determined based on a downsampling factor (e.g., a value of 2 / 3). For example, the number of REs disabled for carrying DM-RS and / or the number of REs selected for carrying DM-RS may be determined based on the downsampling factor. In this embodiment, when the downsampling factor is configured to a value of 2 / 3, reference signals on 4 middle REs (4=12×(1-2 / 3)) of 12 REs within a single PRB may be disabled, or reference signals on the top 4 REs and the bottom 4 REs ((4+4)=12×2 / 3) of 12 REs within a single PRB may be selected. In one embodiment, as Figure 4 As shown, it can be repeated in adjacent PRBs (ie, PRB X and PRB X+1). Figure 3 The reduced DM-RS pattern is shown.

[0142] Figure 5 A schematic diagram of a reduced DM-RS pattern according to an embodiment of the present disclosure is shown, wherein blocks with different textures are REs with DM-RSs corresponding to different DM-RS ports, and REs with the same texture carry DM-RSs for the same DM-RS port. Figure 5 In the embodiment, RS overhead reduction is achieved by disabling DM-RS on 4 REs at the top and 4 REs at the bottom of a PRB carrying a DM-RS pattern of type 1. Alternatively, the RS overhead reduction may be achieved by selecting DM-RS on the middle 4 REs of a DM-RS pattern of type 1 within a PRB. Figure 5 In one embodiment, Figure 5The reduced DM-RS pattern shown corresponds to a downsampling factor of 1 / 3. Figure 6 As shown, it can be repeated in adjacent PRBs (ie, PRB X and PRB X+1). Figure 5 The reduced DM-RS pattern is shown.

[0143] Figure 7 FIG. 1 shows a schematic diagram of a reduced DM-RS pattern according to an embodiment of the present disclosure. Figure 7 , a DM-RS pattern of type 2 within a PRB is shown on the left, where blocks with different textures are REs with DM-RSs corresponding to different DM-RS ports, and REs with the same texture carry DM-RSs for the same DM-RS port. In this embodiment, the DM-RSs carried by the 6 REs on the upper half of the PRB are disabled to form a reduced DM-RS pattern. In other words, the reference signals carried by the 6 REs on the lower half of the PRB are selected to form a reduced DM-RS pattern. In one embodiment, Figure 7 The scaled-down DM-RS pattern shown corresponds to a downsampling factor of 1 / 2.

[0144] In one embodiment, the reference signals carried by the 6 REs in the lower half of the PRB are disabled to form another reduced DM-RS pattern. Alternatively, the reference signals carried by the 6 REs on the upper half of the PRB are selected to form a reduced DM-RS pattern.

[0145] In one embodiment, RS overhead reduction may be implemented as a whole on REs across multiple PRBs (eg, allocated resources or allocated bandwidth). In this case, the number of REs carrying RSs and / or RS patterns in each PRB may be different. Figure 8 A schematic diagram of DM-RS across PRBs according to an embodiment of the present disclosure is shown, wherein blocks with different textures are REs with DM-RSs corresponding to different DM-RS ports, and REs with the same texture carry DM-RSs for the same DM-RS port. Figure 8 In , since RS overhead reduction is performed on REs of PRB X and PRB X+1 as a whole, the RS pattern corresponding to PRB X+1 is different from the RS pattern corresponding to PRB X, for example, to balance the RS density over the entire allocated resources. Figure 8 As shown, the DM-RS pattern corresponding to PRB X+1 is as follows Figure 5 As shown, and the DM-RS pattern corresponding to PRB X is as follows Figure 3 shown.

[0146] In one embodiment, RS overhead reduction is applied at the RB level. That is, RS overhead reduction is implemented at the granularity of RB. Reference signals on certain RBs may be disabled to achieve RS overhead reduction.

[0147] Fig. 9 FIG. 1 shows a schematic diagram of a reduced DM-RS pattern according to an embodiment of the present disclosure. Fig. 9 In this embodiment, PRB X+1 and PRB X are allocated for the reduced DM-RS pattern. In this embodiment, the DM-RS on PRB X+1 is disabled (or the reference signal in PRB X is selected). Note that in Fig. 9 In the reduced DM-RS pattern shown, orthogonality is maintained at least within one PRB.

[0148] In one embodiment, the reduced DM-RS pattern constructed at the RB level may be indicated by a bitmap. For example, the length of the bitmap may be equal to the number of scheduling units (e.g., allocated resources) in the reduced DM-RS pattern. In addition, a bit "0" means disabling the bearer DM-RS, and a bit "1" means enabling the bearer DM-RS. Fig. 9 Taking the reduced DM-RS pattern shown in FIG. 1 as an example, the number of PRBs (i.e., scheduling units) is 2, the reference signal in PRB X+1 is disabled, and the reference signal in PRB X is selected. In this case, the corresponding bitmap length is 2, the bit corresponding to PRB X+1 is "0", and the bit corresponding to PRB X is "1". For example, with Fig. 9 The bitmap corresponding to the reduced DM-RS pattern shown may be

[01] .

[0149] In one embodiment, the reduced DM-RS pattern constructed on RB level may have equal / unequal RS density.

[0150] In one embodiment, up to M PRBs are scheduled (e.g., allocated), where M is an integer greater than 1. In this embodiment, the scheduled PRBs include a basic DM-RS pattern group, where L PRBs are composed of N DM-RS patterns (N is an integer greater than 1, and L is an integer greater than or equal to N and less than or equal to M). The basic DM-RS pattern group may be repeated within the scheduled M PRBs.

[0151] In one embodiment, RS overhead reduction can be achieved by adopting frequency hopping. For example, the pattern of frequency hopping can be determined by considering the pattern of configuration of front loaded and additional DM-RS at a single slot level or a multi-slot level. In an embodiment of frequency hopping within a single slot, the frequency hopping of DM-RS can be performed between the front loaded DM-RS and the additional DM-RS.

[0152] Embodiment 2:

[0153] In one embodiment, RS overhead reduction can be implemented in the time domain. For example, RS overhead reduction can be implemented at the time slot level. In each time slot, flexible RS configuration in the time domain can be supported by configuring at least one of RS type, pre-RS configuration, and additional RS configuration.

[0154] In one embodiment, direct indication of enabling / disabling RS transmission across K time slots (eg, scheduling units) is provided, such as via a bitmap configuration, where K is an integer greater than one. Fig.10 FIG. 4 is a schematic diagram showing a DM-RS across time slots according to an embodiment of the present disclosure. Fig.10 Time slots X, X+1, X+2 and X+3 are shown in , and each block in time slots X, X+1, X+2 and X+3 refers to an orthogonal frequency division multiplexing (OFDM) symbol. In each time slot, the first 2 symbols are configured for the physical downlink control channel (PDCCH), and the symbols with horizontal lines are allocated for DM-RS transmission. In this embodiment, the aggregation factor of the DM-RS pattern is 4 (that is, the number of time slots is 4). Therefore, the size (length) of the corresponding bitmap indicating the enablement / disablement of the DM-RS is 4 to indicate whether the DM-RS (transmission) is enabled / disabled in each time slot. As Fig.10 As shown, DM-RS is enabled in time slots X and X+3, and disabled in time slots X+1 and X+2. In this case, the corresponding bitmap may be [1 0 0 1], where "1" indicates that DM-RS is enabled in the corresponding time slot, and "0" indicates that DM-RS is disabled in the corresponding time slot.

[0155] In one embodiment, a fixed pattern (e.g., a predefined rule) for enabling / disabling RS transmission across L time slots is configured, where L is an integer greater than 1. For example, when the RS reduction function is enabled, DM-RS in time slots with odd / even indexes can be enabled / disabled. Fig.11 FIG. 4 is a schematic diagram showing a DM-RS across time slots according to an embodiment of the present disclosure. Fig.11 In one embodiment, DM-RS is enabled in time slots X and X+2, and disabled in time slots X+1 and X+3. Fig.11 where X is an odd integer. That is, Fig.11 In one embodiment, the DM-RS on the time slots with even indices is disabled and / or the DM-RS on the time slots with odd indices is enabled. Fig.11 Where X is an even integer. In this embodiment, the DM-RS on the time slots with odd indexes is disabled and / or the DM-RS on the time slots with even indexes is enabled.

[0156] In one embodiment, a fixed pattern (predefined rule) may be determined based on a downsampling factor I, where I is within the region [0J] and J is a repetition or aggregation factor. For example, Fig.11 The DM-RS pattern shown in can be determined based on a down-sampling factor having a value of 2 (ie, I=2). That is, starting from the first slot, the DM-RS is disabled in even slots within the DM-RS pattern.

[0157] In one embodiment, the RS pattern may be associated with (eg, determined based on) scheduling information (eg, a redundancy version (RV)) assigned for each transmission within one or more corresponding time slots. Fig.12 A schematic diagram of DM-RS across time slots according to an embodiment of the present disclosure is shown, wherein each block represents a symbol, and blocks with horizontal line textures are symbols carrying DM-RS. In this embodiment, a DM-RS pattern corresponding to each time slot is determined based on the RV of each time slot. For example, a DM-RS pattern with a high density is used for transmissions assigned an RV value of 0, and a DM-RS pattern with a low density is considered for transmissions assigned to RVs of other values. Fig.12 In the example, slots X and X+2 are allocated to an RV with a value of 0, slot X+1 is allocated to an RV with a value of 1, and slot X+3 is allocated to an RV with a value of 2. Therefore, a DM-RS pattern with a high density (i.e., a DM-RS pattern with 3 additional DM-RSs) is used in slots X and X+2, and a DM-RS pattern with a low density (i.e., a DM-RS pattern with 2 additional DM-RSs) is used in slots X+1 and X+3.

[0158] In one embodiment, the RV with a specific preselected value may be configured to have a DM-RS pattern with high / low density. For example, the RV values ​​may be divided into multiple groups, and different groups correspond to different DM-RS patterns. Fig.13 A schematic diagram of DM-RS across time slots according to an embodiment of the present disclosure is shown, where each block represents a symbol, and blocks with horizontal line textures are symbols that carry DM-RS. In this embodiment, transmissions configured with RV values ​​of 0 or 3 are configured to a high-density DM-RS mode, and transmissions configured with RV values ​​of other values ​​are configured to different modes. That is, RV values ​​of 0 and 3 are in one group, and RV values ​​of 1 and 2 are in another group. Fig.13In this case, slot X is allocated to an RV with a value of 0, slot X+1 is allocated to an RV with a value of 1, slot X+2 is allocated to an RV with a value of 3, and slot X+3 is allocated to an RV with a value of 2. In this case, a DM-RS pattern with a high density (i.e., a DM-RS pattern with 3 additional DM-RSs) is used in slots X and X+2, and a DM-RS pattern with a low density (i.e., a DM-RS pattern with 2 additional DM-RSs) is utilized in slots X+1 and X+3.

[0159] In one embodiment, for transmissions assigned to RVs whose values ​​are not those corresponding to the high-density DM-RS pattern (eg, RVs whose values ​​are not 0 and 3), the DM-RS pattern may be the same or different.

[0160] In one embodiment, the same RS pattern is used for each scheduling unit (e.g., time slot), and a small portion (e.g., a portion or subset) of the reference signals in one or more specific scheduling units can be disabled to reduce RS overhead. For example, a specific time slot with disabled RS can be selected based on a predefined rule (e.g., time slots with odd / even indices). Fig.14 A schematic diagram of DM-RS across time slots according to an embodiment of the present disclosure is shown, wherein each block refers to a symbol within a time slot, the first two blocks of each time slot are configured for PDCCH, and the blocks with horizontal line textures mean symbols carrying DM-RS. Fig.14 In the embodiment, the same DM-RS configuration is used for time slots X, X+1, X+2 and X+3, and time slots X+1 and X+3 are selected, for example, to reduce RS overhead. In this embodiment, the first DM-RS and the third DM-RS of the DM-RS pattern are disabled in the selected time slots X+1 and X+3.

[0161] In one embodiment, RS overhead reduction may be achieved by applying the same RS pattern to all scheduling units (e.g., time slots) and by disabling all or part (a small portion or subset) of the reference signals in specific scheduling units (e.g., those units selected based on predefined rules), e.g., as Figures 10 to 14 shown.

[0162] In one embodiment, RS overhead reduction may be achieved by applying multiple RS patterns for a scheduling unit, and at least one of the applied patterns has a lower density (eg, in the time domain and / or frequency domain). Fig.15 FIG. 4 is a schematic diagram showing a DM-RS across time slots according to an embodiment of the present disclosure. Fig.15In the example, time slots X and X+3 are configured with a DM-RS pattern with additional DM-RS=3, and time slots X+1 and X+2 are configured with a DM-RS pattern without additional DM-RS. Note that the time slots selected for a DM-RS pattern with high density (e.g., a DM-RS pattern with 3 additional DM RSs enabled) or a DM-RS pattern with low density (a DM-RS pattern without additional DM-RS) may be determined based on a bitmap, one or more predefined rules, and / or a downsampling factor.

[0163] In one embodiment, a different DM-RS pattern is configured for each scheduling unit. Please note that the difference between the DM-RS patterns of the scheduling units can be indicated via corresponding parameters of the DM-RS configuration. Fig.16 FIG. 4 is a schematic diagram showing a reference signal across time slots according to an embodiment of the present invention. Fig.16 In the embodiment, time slot X is configured with a DMRS configuration that enables additional DM-RS=3, time slot X+1 is configured with a DMRS configuration that enables additional DM-RS=2, time slot X+2 is configured with a DMRS configuration that enables additional DM-RS=1, and time slot X+3 is configured with a DMRS configuration that enables additional DM-RS=0 (i.e., no additional DM-RS). Please note that the difference between the DM-RS patterns of the time slots can be indicated via the corresponding parameters of the DM-RS configuration. In this embodiment, the DM-RS patterns configured for time slots X, X+1, X+2, and X+3 are different under the additional DM-RS configuration. Therefore, the corresponding parameter additionalPos for configuring the DM-RS can be indicated.

[0164] In one embodiment, Figures 10 to 16 The reference signals shown in can be considered as a basic pattern group, for example, for transmissions with a large repetition number or aggregation factor. More specifically, in an embodiment of a transmission with a repetition unit of M time slots, the basic pattern group can include L time slots (L≤M), and the basic pattern group is repeated to cover all N time slots in the repetition unit.

[0165] Fig.17A and 17B FIG. 4 is a schematic diagram showing a DM-RS across time slots according to an embodiment of the present disclosure. Fig.17A and 17B In the example, the repeating unit consists of 9 time slots X to X+8, and the basic pattern group is similar to Fig.15 In this case, the basic pattern group is repeated in slots X to X+7, and due to the limitation of the number of slots, slot X+8 is configured with the DM-RS pattern of the first slot in the basic pattern group.

[0166] Fig.18A and 18BFIG. 4 is a schematic diagram showing a DM-RS across time slots according to an embodiment of the present disclosure. Fig.18A and 18B In the example, the repeating unit consists of 9 time slots X to X+8, and the basic pattern group is similar to Fig.16 In this case, the basic pattern group is repeated in slots X to X+7, and due to the limitation of the number of slots, slot X+8 is configured with the DM-RS pattern of the first slot in the basic pattern group.

[0167] Embodiment 3:

[0168] In one embodiment, RS overhead reduction can be implemented in both the time domain and the frequency domain. For example, RS overhead reduction can be achieved through frequency hopping. Fig.19 A schematic diagram of reference signals across time slots and PRBs according to an embodiment of the present disclosure is shown. Fig.19 In the embodiment, each block refers to a symbol, the first 2 blocks of each time slot are allocated to PDCCH, and the blocks with horizontal line texture carry DM-RS. In this embodiment, RS overhead reduction is implemented in the frequency domain of each time slot. More specifically, the DM-RS in one of PRBs Y and Y+1 is selected to be enabled / disabled. In addition, RS overhead reduction is implemented in the time domain across time slots. More specifically, Fig.19 In the embodiment of the present invention, two DM-RS patterns are used, wherein a DM-RS pattern with high RS density is used in time slots X and X+3, and another DM-RS pattern with low RS density is used in time slots X+1 and X+2. In one embodiment, the two different DM-RS patterns can be configured separately. Alternatively or additionally, the configuration of the DM-RS pattern with low RS density can be determined based on at least part of the configuration of the DM-RS pattern with high RS density.

[0169] In one embodiment, RS overhead reduction is achieved by disabling RSs in specific frequency resources (eg, PRBs). Fig. 20 FIG. 1 is a schematic diagram showing a reference signal across time slots and PRBs according to an embodiment of the present disclosure. Fig.19 The reference signal shown in Fig. 20 In time slots X and X+3, a DM-RS pattern with high RS density is used, and another DM-RS pattern with low RS density is used in time slots X+1 and X+2. Note that the DM-RS in PRB Y+1 is disabled for all time slots X to X+3.

[0170] Embodiment 4:

[0171] In one embodiment, when considering the aforementioned embodiments of RS overhead reduction, relative changes may be made accordingly.

[0172] In one embodiment, when RS overhead is reduced, the transport block size (TBS) of the data with which the RS is aligned (i.e., data transmitted together with the RS) can be changed. For example, in an embodiment where I scheduling units include J REs carrying RSs, the TBS of the data carried on I scheduling units is determined based on the number of REs carrying RSs (i.e., J), where I and J are integers greater than 1.

[0173] More specifically, to determine the TBS for data, the RS overhead (e.g., DM-RS overhead) of the REs (e.g., RS-carrying REs) allocated for PUSCH, PDSCH, PDCCH, and / or PBCH (physical broadcast channel) number calculation is considered. In an embodiment where RS overhead reduction is enabled, the general RS overhead may be different per scheduling unit (e.g., per PRB, per time slot, per repetition unit, or per aggregation unit). In this case, the number of REs used to determine the TBS may be determined as one of the following:

[0174] A) The number of REs is determined based on the number of REs carrying DM-RSs in a DM-RS pattern having a maximum DM-RS density.

[0175] B) The number of REs is determined based on the number of REs carrying DM-RS in a DM-RS pattern with an average DM-RS density across time slots.

[0176] C) The number of REs is determined based on the number of REs carrying DM-RSs in a DM-RS pattern with a maximum additional DM-RS configuration.

[0177] D) The number of REs is determined based on the number of REs carrying DM-RSs in the DM-RS pattern with the lowest DM-RS density.

[0178] In embodiments where transmission or repetition is aggregated, the TBS of each repeating unit may be determined individually.

[0179] In an embodiment where multiple time slots are aggregated for transmission, the TBS is determined based on the bundling of all time slots. For example, the TBS is determined over all K time slots bundled together, where K is an integer and can be equal to the length of the basic RS pattern group.

[0180] In one embodiment, the modulation and coding scheme (MCS) indication may be changed correspondingly with the reduction of RS overhead. For example, the MCS indication may be changed when repetition or aggregation is considered.

[0181] In embodiments where the TBS is determined based on timeslot bundling, a single MCS indication is signaled to the UE.

[0182] In embodiments where the same TBS is determined for scheduling repetitions or aggregation units, multiple MCS indications may be utilized.

[0183] Fig.21 A flow chart showing a process according to an embodiment of the present disclosure is shown. Fig.21 The process shown may be utilized by a transmitting node (e.g., a UE or a BS) and includes the following steps:

[0184] Step 2100: Transmit a reference signal including N patterns allocated to one or more scheduling units to a receiving node.

[0185] In this embodiment, N is an integer greater than 1.

[0186] exist Fig.21 In the embodiment, a transmitting node transmits a reference signal including N (N≥1) patterns to a receiving node (e.g., a BS or a UE), where the N patterns are assigned to one or more scheduling units. In one embodiment, a pattern refers to a resource structure in at least one of a time domain or a frequency domain for carrying RS. In one embodiment, a pattern is defined within one or more basic resource units, such as one or more PRBs and / or one or more time slots.

[0187] In one embodiment, one or more scheduling units may refer to resources allocated for a reference signal. In one embodiment, one or more scheduling units may refer to resources allocated to other channels (eg, PUSCH or PDSCH) aligned with a reference signal.

[0188] In one embodiment, one or more scheduling units refer to resources including at least one of a group of resource blocks, a group of symbols, a repetition unit, a group of time slots, a frame, or a time slot.

[0189] In one embodiment, one or more scheduling units refer to resources allocated via at least one scheduling signaling. For example, the at least one scheduling signaling includes downlink control information (DCI), radio resource control (RRC) configuration (e.g., for configuring a grant), or a random access response.

[0190] In one embodiment, the allocation of one or more transmissions by one or more scheduling units may be:

[0191] 1) Resource allocation in the time domain or frequency domain via DCI indication and / or RRC configuration;

[0192] 2) Resource allocation in the time domain via configuration repetition, aggregation for transmission;

[0193] 3) Resource allocation in the frequency domain by configuring simultaneous transmission on different carriers.

[0194] In one embodiment, the reference signal refers to at least one of a DM-RS, a CSI-RS, a phase tracking reference signal, a positioning reference signal, or a sounding reference signal.

[0195] In one embodiment, the N patterns are different from each other. Please note that the difference between the two patterns refers to the different patterns of the RS. That is, the required or occupied resources (e.g., one or more REs) of the RS in at least one of the time domain or frequency domain within the corresponding one or more scheduling units are different.

[0196] In one embodiment, for each of the N modes, at least one parameter of at least one of: reference signal type, pre-reference signal configuration, additional reference signal configuration, time domain position of the reference signal, or frequency position of the reference signal is configured. In this embodiment, the parameters for configuring the N modes are explicitly configured. In one embodiment, the time domain position and / or frequency domain position of the reference signal may be explicitly configured for a radio access technology (RAT) other than new radio. For example, in narrowband IoT (NB IoT), the DM-RS of the NPUSCH (i.e., PUSCH in NB IoT) is predefined and coupled with the format of the NPUSCH (e.g., partial scheduling information for data).

[0197] In one embodiment, at least one parameter of at least one of the reference signal type, pre-reference signal configuration, additional reference signal configuration, time domain position of the reference signal, or frequency position of the reference signal for the first mode among the N modes is determined by at least one of the following: a corresponding parameter of the second mode among the N modes, a resource index including reference signals associated with the first mode and the second mode, or scheduling information of data corresponding to the reference signals associated with the first mode and the second mode. In other words, the parameters configuring one of the N modes (e.g., the first mode) may not be explicitly configured and may be determined based on information associated with itself and / or other modes (e.g., the second mode). Fig.18A Taking the DM-RS shown in as an example, the parameters associated with the additional reference signal configuration of the patterns in each basic pattern group can be determined based on the index of the time slot including the pattern included in the basic pattern group.

[0198] In one embodiment, the scheduling information includes RV, New Data Indicator (NDI), Modulation and Coding Scheme (MCS), Transmission Configuration Indication (TCI) indication and Quasi Co-location (QCL) relationship, resource allocation type (e.g., different resource allocation types in the time domain for new radio) or channel format (different channel types for NB-IoT).

[0199] In one embodiment, the third mode among the N modes is determined by disabling the entire reference signal in the fourth mode. In other words, the transmission of the RS may be disabled in one or more specific scheduling units (e.g., one or more scheduling units corresponding to the third mode) (e.g., see Fig.10 and Fig.11 ).

[0200] In one embodiment, the fifth mode among the N modes includes a portion (e.g., a small portion or a subset) of the reference signal in the sixth mode among the N modes. In this embodiment, one of the N modes (i.e., the fifth mode) can be determined (e.g., acquired) by disabling / selecting a portion (e.g., a small portion or a subset) of the reference signal in another mode (i.e., the sixth mode). That is, not the entire RS in the sixth mode is transmitted, or not all resources (e.g., REs) occupied by the RS in the sixth mode are used for RS transmission in the fifth mode.

[0201] In one embodiment, the disabled or selected portion of the reference signal in the sixth mode is determined based on a factor (eg, a downsampling factor), wherein the factor may be configured via signaling or predefined as a fixed value. Alternatively or additionally, the factor may be a fixed value before being configured.

[0202] In one embodiment, the disabled or selected portion of the reference signal in the sixth mode is located in the second mode (eg, Figure 7 The upper or lower half of the DM-RS pattern shown in ).

[0203] In one embodiment, each of the at least one scheduling unit corresponds to one of the N modes based on a bitmap.

[0204] In one embodiment, each of the at least one scheduling unit corresponds to one of the N patterns based on a predetermined rule. For example, scheduling units with odd indexes may correspond to the same pattern and / or scheduling units with even indexes may correspond to the same pattern.

[0205] In one embodiment, scheduling units carrying data with the same scheduling information correspond to the same mode.

[0206] In one embodiment, the scheduling units that belong to the same group and carry data with scheduling information correspond to the same mode (eg, Fig.12 and 13 DM-RS pattern shown in ).

[0207] In one embodiment, at least one scheduling unit includes a basic pattern group, which spans L scheduling units and includes N patterns, where L is an integer greater than or equal to N (ie, L≥N).

[0208] In one embodiment, the basic pattern group is repeated over M scheduling units, where M is an integer greater than L.

[0209] In one embodiment, the first scheduling unit of the basic mode group carries a reference signal, that is, the first scheduling unit corresponds to a mode with one or more RS transmissions.

[0210] In one embodiment, a 1 st (first) scheduling unit of the at least one scheduling unit carries a reference signal.

[0211] In one embodiment, the transmitting node may receive an indication from the receiving node to enable a reference signal having N patterns (eg, to enable RS overhead reduction).

[0212] In one embodiment, the transmitting node may receive a configuration associated with a reference signal from the receiving node, wherein the configuration includes at least one of a factor, a bitmap, a number of scheduling units in a single repetition unit, N modes of pre-reference signal configurations, or N modes of additional reference signal configurations.

[0213] In one embodiment, the transmitting node receives scheduling information of data associated with the reference signal from the receiving node, wherein the scheduling information includes at least one of RV, NDI, MCS, TCI indication, QCL relationship, resource allocation type or channel format.

[0214] In an embodiment where the transmitting node is a UE and the receiving node is a BS, the transmitting node receives from the receiving node at least one of an indication of enabling a reference signal having N patterns, a configuration associated with the reference signal, or scheduling information of data associated with the reference signal.

[0215] In an embodiment where the transmitting node is a BS and the receiving node is a UE, the transmitting node may be changed to transmit to the receiving node at least one of an indication of enabling a reference signal having N patterns, a configuration associated with the reference signal, or scheduling information of data associated with the reference signal.

[0216] In one embodiment, the TBS of data transmitted with the reference signal is determined based on the number of resource elements associated with the N patterns.

[0217] In one embodiment, the number of resource elements associated with the N patterns is determined based on the number of resource elements carrying reference signals in a pattern having the highest reference signal density among the N patterns.

[0218] In one embodiment, the number of resource elements associated with the N patterns is determined based on an average value of the number of resource elements carrying reference signals in each of the N patterns.

[0219] In one embodiment, the number of resource elements associated with the N patterns is determined based on the number and ratio of resource elements carrying reference signals in a pattern having the highest reference signal density among the N patterns.

[0220] In one embodiment, the number of resource elements associated with the N patterns is determined based on the number of resource elements carrying reference signals in a pattern having the lowest reference signal density among the N patterns.

[0221] In one embodiment, N patterns form at least one basic pattern group across L scheduling units, where L is an integer greater than or equal to N. In addition, the basic pattern group is repeated over M scheduling units, where M is an integer greater than L. In this embodiment, the TBS is determined per basic pattern group or for all M scheduling units.

[0222] In an embodiment where the TBS is determined for all M scheduling units, a modulation and coding scheme is configured for the M scheduling units.

[0223] In an embodiment where the TBS is determined per base pattern set, a modulation and coding scheme is configured per base pattern set.

[0224] Fig. 22 A flow chart showing a process according to an embodiment of the present disclosure is shown. Fig. 22 The process shown may be utilized by a receiving node (e.g., a BS or a UE) and includes the following steps:

[0225] Step 2200: Receive a reference signal including N patterns allocated to one or more scheduling units from a transmitting node, where N is an integer greater than 1.

[0226] exist Fig. 22 In the embodiment, a receiving node receives a reference signal including N (N≥1) patterns from a transmitting node (e.g., a UE or a BS), where the N patterns are assigned to one or more scheduling units. In one embodiment, a pattern refers to a resource structure in at least one of a time domain or a frequency domain for carrying RS. In one embodiment, a pattern is defined within one or more basic resource units, such as one or more PRBs and / or one or more time slots.

[0227] In one embodiment, one or more scheduling units may refer to resources allocated for a reference signal. In one embodiment, one or more scheduling units may refer to resources allocated to other channels (eg, PUSCH or PDSCH) aligned with a reference signal.

[0228] In one embodiment, one or more scheduling units refer to resources including at least one of a group of resource blocks, a group of symbols, a repetition unit, a group of time slots, a frame, or a time slot.

[0229] In one embodiment, the one or more scheduling units refer to resources allocated via at least one scheduling signaling. For example, the at least one scheduling signaling includes DCI, RRC configuration (eg, for configuring a grant), or a random access response.

[0230] In one embodiment, the allocation of one or more transmissions by one or more scheduling units may be:

[0231] 1) Resource allocation in the time domain or frequency domain via DCI indication and / or RRC configuration;

[0232] 2) Resource allocation in the time domain via configuration repetition, aggregation for transmission;

[0233] 3) Resource allocation in the frequency domain by configuring simultaneous transmission of different carriers.

[0234] In one embodiment, the reference signal refers to at least one of a DM-RS, a CSI-RS, a phase tracking reference signal, a positioning reference signal, or a sounding reference signal.

[0235] In one embodiment, the N patterns are different from each other. Please note that the difference between the two patterns refers to the different patterns of the RS. That is, the required or occupied resources (e.g., one or more REs) of the RS in at least one of the time domain or frequency domain within the corresponding one or more scheduling units are different.

[0236] In one embodiment, for each of the N modes, at least one parameter of at least one of: reference signal type, pre-reference signal configuration, additional reference signal configuration, time domain position of the reference signal, or frequency position of the reference signal is configured. In this embodiment, the parameters for configuring the N modes are explicitly configured. In one embodiment, the time domain position and / or frequency domain position of the reference signal may be explicitly configured for a radio access technology (RAT) other than new radio. For example, in narrowband IoT (NB IoT), the DM-RS of the NPUSCH (i.e., PUSCH in NB IoT) is predefined and coupled with the format of the NPUSCH (e.g., partial scheduling information for data).

[0237] In one embodiment, at least one parameter of at least one of a reference signal type, a pre-reference signal configuration, an additional reference signal configuration, a time domain position of a reference signal, or a frequency position of a reference signal for a first mode among the N modes is determined by at least one of the following: a corresponding parameter of a second mode among the N modes, a resource index including reference signals associated with the first mode and the second mode, or scheduling information of data corresponding to reference signals associated with the first mode and the second mode. In other words, a parameter configuring one of the N modes (i.e., the first mode) may not be explicitly configured and may be determined based on information associated with itself and / or another mode (i.e., the second mode).

[0238] In one embodiment, the scheduling information includes RV, NDI, MCS, TCI indication and QCL relationship, resource allocation type (e.g., different resource allocation types in the time domain for new radio) or channel format (different channel types for NB IoT).

[0239] In one embodiment, the third mode among the N modes is determined by disabling the entire reference signal in the fourth mode. In other words, the transmission of the RS may be disabled in one or more specific scheduling units (e.g., one or more scheduling units corresponding to the third mode) (e.g., see Fig.10 and Fig.11 ).

[0240] In one embodiment, the fifth mode among the N modes includes a portion (e.g., a small portion or a subset) of the reference signal in the sixth mode among the N modes. In this embodiment, one of the N modes (i.e., the fifth mode) can be determined (e.g., acquired) by disabling / selecting a portion (e.g., a small portion or a subset) of the reference signal in another mode (i.e., the sixth mode). That is, not all RSs in the sixth mode are transmitted, or not all resources (e.g., REs) occupied by RSs in the sixth mode are used for RS transmission in the fifth mode.

[0241] In one embodiment, the disabled or selected portion of the reference signal in the sixth mode is determined based on a factor (eg, a downsampling factor), wherein the factor may be configured via signaling or predefined as a fixed value. Alternatively or additionally, the factor may be a fixed value before being configured.

[0242] In one embodiment, the disabled or selected portion of the reference signal in the sixth mode is located in the second mode (eg, Figure 7 The upper or lower half of the DM-RS pattern shown in ).

[0243] In one embodiment, each of the at least one scheduling unit corresponds to one of the N modes based on a bitmap.

[0244] In one embodiment, each of the at least one scheduling unit corresponds to one of the N patterns based on a predetermined rule. For example, scheduling units with odd indexes may correspond to the same pattern and / or scheduling units with even indexes may correspond to the same pattern.

[0245] In one embodiment, scheduling units carrying data with the same scheduling information correspond to the same mode.

[0246] In one embodiment, the scheduling units that belong to the same group and carry data with scheduling information correspond to the same mode (eg, Fig.12 and 13 DM-RS pattern shown in ).

[0247] In one embodiment, at least one scheduling unit includes a basic pattern group, which spans L scheduling units and includes N patterns, where L is an integer greater than or equal to N (ie, L≥N).

[0248] In one embodiment, the basic pattern group is repeated over M scheduling units, where M is an integer greater than L.

[0249] In one embodiment, the first scheduling unit of the basic mode group carries a reference signal, that is, the first scheduling unit corresponds to a mode with one or more RS transmissions.

[0250] In one embodiment, a 1 st (first) scheduling unit of the at least one scheduling unit carries a reference signal.

[0251] In one embodiment, the receiving node may transmit an indication from the receiving node to enable a reference signal having N patterns (eg, to enable RS overhead reduction).

[0252] In one embodiment, the receiving node may transmit a configuration associated with a reference signal from the receiving node, wherein the configuration includes at least one of a factor, a bitmap, a number of scheduling units in a single repetition unit, N modes of pre-reference signal configurations, or N modes of additional reference signal configurations.

[0253] In one embodiment, the receiving node may transmit scheduling information of data associated with the reference signal from the receiving node, wherein the scheduling information includes at least one of RV, NDI, MCS, TCI indication, QCL relationship, resource allocation type, or channel format.

[0254] In an embodiment where the transmitting node is a UE and the receiving node is a BS, the receiving node transmits to the transmitting node at least one of an indication of enabling a reference signal having N patterns, a configuration associated with the reference signal, or scheduling information of data associated with the reference signal.

[0255] In an embodiment where the transmitting node is a BS and the receiving node is a UE, the receiving node may be changed to receive at least one of an indication of enabling a reference signal having N patterns, a configuration associated with the reference signal, or scheduling information of data associated with the reference signal from the transmitting node.

[0256] In one embodiment, the TBS of data transmitted with the reference signal is determined based on the number of resource elements associated with the N patterns.

[0257] In one embodiment, the number of resource elements associated with the N patterns is determined based on the number of resource elements carrying reference signals in a pattern having the highest reference signal density among the N patterns.

[0258] In one embodiment, the number of resource elements associated with the N patterns is determined based on an average value of the number of resource elements carrying reference signals in each of the N patterns.

[0259] In one embodiment, the number of resource elements associated with the N patterns is determined based on the number and ratio of resource elements carrying reference signals in a pattern having the highest reference signal density among the N patterns.

[0260] In one embodiment, the number of resource elements associated with the N patterns is determined based on the number of resource elements carrying reference signals in a pattern having the lowest reference signal density among the N patterns.

[0261] In one embodiment, N patterns form at least one basic pattern group across L scheduling units, where L is an integer greater than or equal to N. In addition, the basic pattern group is repeated over M scheduling units, where M is an integer greater than L. In this embodiment, the TBS is determined per basic pattern group or for all M scheduling units.

[0262] In an embodiment where the TBS is determined for all M scheduling units, a modulation and coding scheme is configured for the M scheduling units.

[0263] In an embodiment where the TBS is determined per basic pattern set, a modulation and coding scheme is configured per basic pattern set.

[0264] Fig.23 A flow chart showing a process according to an embodiment of the present disclosure is shown. Fig.23 The process shown may be utilized by a transmitting node (e.g., a UE or a BS) and includes the following steps:

[0265] Step 2300: Transmit data and a reference signal including N patterns allocated to one or more scheduling units to a receiving node, wherein a transport block size of the data is determined based on the number of resource elements associated with the N patterns.

[0266] In this embodiment, N is an integer greater than 1.

[0267] exist Fig.23 In the embodiment, a transmitting node transmits data and an RS including N (N≥1) patterns to a receiving node (e.g., a BS or a UE), where the N patterns are assigned to one or more scheduling units. In one embodiment, a pattern refers to a resource structure in at least one of a time domain or a frequency domain for carrying RSs. In one embodiment, a pattern is defined within one or more basic resource units, such as one or more PRBs and / or one or more time slots. In this embodiment, the TBS of the data is determined based on the number of resource elements associated with the N patterns.

[0268] In one embodiment, the number of resource elements associated with the N patterns is determined based on the number of resource elements carrying RSs in a pattern having the highest reference signal density among the N patterns.

[0269] In one embodiment, the number of resource elements associated with the N patterns is determined based on an average value of the number of resource elements carrying RSs in each of the N patterns.

[0270] In one embodiment, the number of resource elements associated with the N patterns is determined based on the number and ratio of resource elements carrying RSs in a pattern having the highest reference signal density among the N patterns.

[0271] In one embodiment, the number of resource elements associated with the N patterns is determined based on the number of resource elements carrying RSs in a pattern having the lowest reference signal density among the N patterns.

[0272] In one embodiment, N patterns form at least one basic pattern group across L scheduling units, where L is an integer greater than or equal to N. In addition, the basic pattern group is repeated over M scheduling units, where M is an integer greater than L. In this embodiment, the TBS is determined per basic pattern group or for all M scheduling units.

[0273] In an embodiment where the TBS is determined for all M scheduling units, a modulation and coding scheme is configured for the M scheduling units.

[0274] In an embodiment where the TBS is determined per basic pattern set, a modulation and coding scheme is configured per basic pattern set.

[0275] In one embodiment, the one or more scheduling units refer to resources including at least one of a group of resource blocks, a group of symbols, a group of time slots, a group of repetition units, a repetition unit, a frame, or a time slot.

[0276] In one embodiment, the RS refers to at least one of a DM-RS, a CSI-RS, a phase tracking reference signal, a positioning reference signal, or a sounding reference signal.

[0277] Fig.24 A flow chart showing a process according to an embodiment of the present disclosure is shown. Fig.24 The process shown may be utilized by a receiving node (e.g., a BS or a UE) and includes the following steps:

[0278] Step 2400: Receive data and a reference signal including N patterns allocated to one or more scheduling units from a transmitting node, wherein a transport block size of the data is determined based on the number of resource elements associated with the N patterns.

[0279] In this embodiment, N is an integer greater than 1.

[0280] exist Fig.24 In the embodiment, a receiving node receives data and an RS including N (N≥1) patterns from a transmitting node (e.g., a UE or a BS), where the N patterns are assigned to one or more scheduling units. In one embodiment, a pattern refers to a resource structure in at least one of a time domain or a frequency domain for carrying RSs. In one embodiment, a pattern is defined within one or more basic resource units, such as one or more PRBs and / or one or more time slots. In this embodiment, the TBS of the data is determined based on the number of resource elements associated with the N patterns.

[0281] In one embodiment, the number of resource elements associated with the N patterns is determined based on the number of resource elements carrying RSs in a pattern having the highest reference signal density among the N patterns.

[0282] In one embodiment, the number of resource elements associated with the N patterns is determined based on an average value of the number of resource elements carrying RSs in each of the N patterns.

[0283] In one embodiment, the number of resource elements associated with the N patterns is determined based on the number and ratio of resource elements carrying RSs in a pattern having the highest reference signal density among the N patterns.

[0284] In one embodiment, the number of resource elements associated with the N patterns is determined based on the number of resource elements carrying RSs in a pattern having the lowest reference signal density among the N patterns.

[0285] In one embodiment, N patterns form at least one basic pattern group across L scheduling units, where L is an integer greater than or equal to N. In addition, the basic pattern group is repeated over M scheduling units, where M is an integer greater than L. In this embodiment, the TBS is determined per basic pattern group or for all M scheduling units.

[0286] In an embodiment where the TBS is determined for all M scheduling units, a modulation and coding scheme is configured for the M scheduling units.

[0287] In an embodiment where the TBS is determined per basic pattern set, a modulation and coding scheme is configured per basic pattern set.

[0288] In one embodiment, the one or more scheduling units refer to resources including at least one of a group of resource blocks, a group of symbols, a group of time slots, a group of repetition units, a repetition unit, a frame, or a time slot.

[0289] In one embodiment, the RS refers to at least one of a DM-RS, a CSI-RS, a phase tracking reference signal, a positioning reference signal, or a sounding reference signal.

[0290] Although various embodiments of the present disclosure have been described above, it should be understood that they are presented only by way of example and not by way of limitation. Similarly, various figures may depict example architectures or configurations, which are provided to enable those of ordinary skill in the art to understand the exemplary features and functions of the present disclosure. However, these personnel will understand that the present disclosure is not limited to the example architectures or configurations shown, but may be implemented using a variety of alternative architectures and configurations. In addition, as will be understood by those of ordinary skill in the art, one or more features of an embodiment may be combined with one or more features of another embodiment described herein. Therefore, the breadth and scope of the present disclosure should not be limited by any of the exemplary embodiments described above.

[0291] It should also be understood that any reference to an element using names such as "first", "second", etc. herein does not generally limit the number or order of these elements. Instead, these names can be used herein as a convenient means of distinguishing two or more elements or element instances. Therefore, reference to a first element and a second element does not mean that only two elements can be used, or that the first element must be located before the second element in some way.

[0292] In addition, those skilled in the art will appreciate that information and signals may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, and symbols referenced in the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0293] Those skilled in the art will further understand that any of the various illustrative logical blocks, units, processors, devices, circuits, methods, and functions described in conjunction with the aspects disclosed herein may be implemented via electronic hardware (e.g., digital implementations, analog implementations, or a combination of both), firmware, various forms of programs or design codes containing instructions (for convenience, may be referred to herein as "software" or "software units"), or any combination of these technologies.

[0294] In order to clearly illustrate this interchangeability of hardware, firmware and software, various illustrative components, blocks, units, circuits and steps have been generally described above with respect to their functionality. Such functions are implemented in hardware, firmware or software or a combination of these technologies, depending on the specific application and the design constraints imposed on the entire system. Those skilled in the art can implement the described functions in various ways for each specific application, but such implementation decisions will not lead to deviations from the scope of the present disclosure. According to various embodiments, processors, devices, components, circuits, structures, machines, units, etc. may be configured to perform one or more functions described herein. The terms "configured to" or "configured for" used herein with respect to a specified operation or function refer to a processor, device, component, circuit, structure, machine, unit, etc. that is physically constructed, programmed and / or arranged to perform a specified operation or function.

[0295] In addition, the skilled person will understand that the various illustrative logic blocks, units, devices, components and circuits described herein may be implemented in or performed by an integrated circuit (IC), which may include a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, or any combination thereof. The logic blocks, units and circuits may also include antennas and / or transceivers to communicate with various components within a network or within a device. The general-purpose processor may be a microprocessor, but in an alternative, the processor may be any conventional processor, controller or state machine. The processor may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors combined with a DSP core, or any other suitable configuration to perform the functions described herein. If implemented in software, the functions may be stored as one or more instructions or codes on a computer-readable medium. Therefore, the steps of the method or algorithm disclosed herein may be implemented in software stored on a computer-readable medium.

[0296] Computer-readable media include computer storage media and communication media, including any media that enables a computer program or code to be transferred from one place to another. Storage media can be any available media that can be accessed by a computer. By way of example and not limitation, such computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other media that can be used to store desired program code in the form of instructions or data structures and can be accessed by a computer.

[0297] In this document, the term "unit" as used herein refers to software, firmware, hardware, and any combination of these elements for performing the relevant functions described herein. In addition, for ease of discussion, various units are described as discrete units; however, it is obvious to a person of ordinary skill in the art that two or more units can be combined to form a single unit that performs the relevant functions according to the embodiments of the present disclosure.

[0298] In addition, memory or other memory and communication components may be used in embodiments of the present disclosure. It should be understood that, for the sake of clarity, the above description has described embodiments of the present disclosure with reference to different functional units and processors. However, it will be apparent that any appropriate functional distribution may be used between different functional units, processing logic elements or domains without departing from the present disclosure. For example, a function shown as being performed by a separate processing logic element or controller may be performed by the same processing logic element or controller. Therefore, references to specific functional units are only references to appropriate means for providing the described functions, rather than to strict logical or physical structures or instructions for organization.

[0299] Various modifications to the embodiments described in this disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments without departing from the scope of this disclosure. Therefore, this disclosure is not intended to be limited to the embodiments shown herein, but is to be given the widest scope consistent with the novel features and principles disclosed herein, as recited in the claims.

Claims

1. A wireless communication method used in a transmitting node, the wireless communication method comprising: transmitting a reference signal to a receiving node, the reference signal comprising N patterns assigned to at least one scheduling unit, Where N is an integer greater than 1, The first scheduling unit of the at least one scheduling unit carries the reference signal, The indication for enabling the reference signal is received by the transmitting node from the receiving node or transmitted to the receiving node, The configuration associated with the reference signal is received by the transmitting node from the receiving node or transmitted to the receiving node, wherein the configuration includes: at least one of a factor, a bitmap, the number of scheduling units in a single repetition unit, the pre-reference signal configuration of the N modes, the additional reference signal configuration of the N modes, the time domain position of the reference signal, or the frequency position of the reference signal, The scheduling information of the data associated with the reference signal is received by the transmitting node from the receiving node or transmitted to the receiving node, wherein the scheduling information includes: a redundancy version, a new data indicator, a modulation and coding scheme, a transmission configuration indication, a quasi-co-location relationship, a resource allocation type or at least one of a channel format.

2. The wireless communication method according to claim 1, wherein: The at least one scheduling unit means resources including at least one of a group of resource blocks, a group of symbols, a group of time slots, a group of repetition units, a repetition unit, a frame or a time slot.

3. The wireless communication method according to claim 1 or 2, wherein: The at least one scheduling unit means resources allocated via at least one scheduling signaling.

4. The wireless communication method according to claim 1 or 2, wherein: The reference signal means at least one of a demodulation reference signal, a channel state information reference signal, a phase tracking reference signal, a positioning reference signal or a sounding reference signal.

5. The wireless communication method according to claim 1 or 2, wherein: The N patterns are different from each other.

6. The wireless communication method according to claim 1 or 2, wherein: For each of the N modes, at least one parameter of at least one of a reference signal type, a pre-reference signal configuration, an additional reference signal configuration, a time domain position of a reference signal, or a frequency position of a reference signal is configured.

7. The wireless communication method according to claim 1 or 2, wherein: At least one parameter of at least one of a reference signal type, a pre-reference signal configuration, an additional reference signal configuration, a time domain position of a reference signal, or a frequency position of a reference signal for a first mode of the N modes is determined by at least one of the following: corresponding parameters of the second mode among the N modes, comprising a resource index of the reference signal associated with the first mode and the second mode, or Scheduling information of data corresponding to the reference signals associated with the first pattern and the second pattern.

8. The wireless communication method according to claim 1 or 2, wherein: A third mode among the N modes is determined by disabling the entire reference signal in a fourth mode.

9. The wireless communication method according to claim 1 or 2, wherein: A fifth pattern among the N patterns includes a portion of a reference signal in a sixth pattern among the N patterns.

10. The wireless communication method according to claim 9, wherein: The reference signal in the fifth mode is determined by disabling or selecting a small portion of the reference signal in the sixth mode.

11. The wireless communication method according to claim 10, wherein: The disabled or selected portion of the reference signal in the sixth mode is determined based on a factor.

12. The wireless communication method according to claim 10 or 11, wherein: The disabled portion or the selected portion of the reference signal in the sixth mode is located in the upper half or the lower half of the second mode.

13. The wireless communication method according to any one of claims 1, 2, 10, and 11, wherein: Each of the at least one scheduling unit corresponds to one of the N modes based on a bitmap.

14. The wireless communication method according to any one of claims 1, 2, 10, and 11, wherein: Each of the at least one scheduling unit corresponds to one of the N modes based on a predetermined rule.

15. The wireless communication method according to claim 14, wherein: Scheduling units with odd-numbered indices correspond to the same pattern, or scheduling units with even-numbered indices correspond to the same pattern.

16. The wireless communication method according to claim 14, wherein: Scheduling units carrying data having the same scheduling information correspond to the same mode.

17. The wireless communication method according to claim 14, wherein: Scheduling units that belong to the same group and carry data with scheduling information correspond to the same mode.

18. The wireless communication method according to any one of claims 1, 2, 10, 11, 15 to 17, wherein: The at least one scheduling unit includes a basic pattern group, the basic pattern group spans L scheduling units and includes the N patterns, where L is an integer greater than or equal to N.

19. The wireless communication method according to claim 18, wherein: The basic pattern group is repeated over M scheduling units, where M is an integer greater than L.

20. The wireless communication method according to claim 18, wherein: The first scheduling unit of the basic mode group carries the reference signal.

21. A wireless communication method used in a receiving node, the wireless communication method comprising: receiving a reference signal from a transmitting node, the reference signal comprising N patterns assigned to at least one scheduling unit, Where N is an integer greater than 1, The first scheduling unit of the at least one scheduling unit carries the reference signal, The indication for enabling the reference signal is received by the receiving node from the transmitting node or transmitted to the transmitting node, The configuration associated with the reference signal is received by the receiving node from the transmitting node or transmitted to the transmitting node, wherein the configuration includes: at least one of a factor, a bitmap, a number of scheduling units in a single repetition unit, a pre-reference signal configuration of the N modes, an additional reference signal configuration of the N modes, a time domain position of the reference signal, or a frequency position of the reference signal, The scheduling information of the data associated with the reference signal is received by the receiving node from the transmitting node or transmitted to the transmitting node, wherein the scheduling information includes: a redundancy version, a new data indicator, a modulation and coding scheme, a transmission configuration indication, a quasi-co-site relationship, a resource allocation type or at least one of a channel format.

22. The wireless communication method according to claim 21, wherein: The at least one scheduling unit means resources including at least one of a group of resource blocks, a group of symbols, a group of time slots, a group of repetition units, a repetition unit, a frame or a time slot.

23. The wireless communication method according to claim 21 or 22, wherein: The at least one scheduling unit means resources allocated via at least one scheduling signaling.

24. The wireless communication method according to claim 21 or 22, wherein: The reference signal means at least one of a demodulation reference signal, a channel state information reference signal, a phase tracking reference signal, a positioning reference signal or a sounding reference signal.

25. The wireless communication method according to claim 21 or 22, wherein: The N patterns are different from each other.

26. The wireless communication method according to claim 21 or 22, wherein each of the N modes is configured with at least one parameter of at least one of a reference signal type, a pre-reference signal configuration, an additional reference signal configuration, a time domain position of a reference signal, or a frequency position of a reference signal.

27. The wireless communication method according to claim 21 or 22, wherein: At least one parameter of at least one of a reference signal type, a pre-reference signal configuration, an additional reference signal configuration, a time domain position of a reference signal, or a frequency position of a reference signal for a first mode of the N modes is determined by at least one of the following: corresponding parameters of the second mode among the N modes, comprising a resource index of the reference signal associated with the first mode and the second mode, or Scheduling information of data corresponding to the reference signals associated with the first pattern and the second pattern.

28. The wireless communication method according to claim 21 or 22, wherein: A third mode among the N modes is determined by disabling the entire reference signal in a fourth mode.

29. The wireless communication method according to claim 21 or 22, wherein: A fifth pattern among the N patterns includes a portion of a reference signal in a sixth pattern among the N patterns.

30. The wireless communication method according to claim 29, wherein: The reference signal in the fifth mode is determined by disabling or selecting a small portion of the reference signal in the sixth mode.

31. The wireless communication method according to claim 30, wherein: The disabled or selected portion of the reference signal in the sixth mode is determined based on a factor.

32. The wireless communication method according to claim 30 or 31, wherein: The disabled portion or the selected portion of the reference signal in the sixth mode is located in the upper half or the lower half of the second mode.

33. The wireless communication method according to any one of claims 21, 22, 30, and 31, wherein: Each of the at least one scheduling unit corresponds to one of the N modes based on a bitmap.

34. The wireless communication method according to any one of claims 21, 22, 30, and 31, wherein: Each of the at least one scheduling unit corresponds to one of the N modes based on a predetermined rule.

35. The wireless communication method according to claim 34, wherein: Scheduling units with odd-numbered indices correspond to the same pattern, or scheduling units with even-numbered indices correspond to the same pattern.

36. The wireless communication method according to claim 34, wherein: Scheduling units carrying data having the same scheduling information correspond to the same mode.

37. The wireless communication method according to claim 34, wherein: Scheduling units that belong to the same group and carry data with scheduling information correspond to the same mode.

38. The wireless communication method according to any one of claims 21, 22, 30, 31, 35 to 37, wherein: The at least one scheduling unit includes a basic pattern group, the basic pattern group spans L scheduling units and includes the N patterns, where L is an integer greater than or equal to N.

39. The wireless communication method according to claim 38, wherein: The basic pattern group is repeated over M scheduling units, where M is an integer greater than L.

40. The wireless communication method according to claim 38, wherein: The first scheduling unit of the basic mode group carries the reference signal.

41. A wireless communication method used in a transmitting node, the wireless communication method comprising: transmitting data and a reference signal to a receiving node, the reference signal comprising N patterns assigned to at least one scheduling unit, Where N is an integer greater than 1, wherein the transport block size of the data is determined based on the number of resource elements associated with the N patterns, The first scheduling unit of the at least one scheduling unit carries the reference signal, The indication for enabling the reference signal is received by the transmitting node from the receiving node or transmitted to the receiving node, The configuration associated with the reference signal is received by the transmitting node from the receiving node or transmitted to the receiving node, wherein the configuration includes: at least one of a factor, a bitmap, the number of scheduling units in a single repetition unit, the pre-reference signal configuration of the N modes, the additional reference signal configuration of the N modes, the time domain position of the reference signal, or the frequency position of the reference signal, The scheduling information of the data associated with the reference signal is received by the transmitting node from the receiving node or transmitted to the receiving node, wherein the scheduling information includes: a redundancy version, a new data indicator, a modulation and coding scheme, a transmission configuration indication, a quasi-co-location relationship, a resource allocation type or at least one of a channel format.

42. The wireless communication method according to claim 41, wherein: The number of resource elements associated with the N patterns is determined based on the number of resource elements carrying the reference signals in a pattern having the highest reference signal density among the N patterns.

43. The wireless communication method according to claim 41, wherein: The number of resource elements associated with the N patterns is determined based on an average value of the number of resource elements carrying the reference signal in each of the N patterns.

44. The wireless communication method according to claim 41, wherein: The number of resource elements associated with the N patterns is determined based on the number and ratio of resource elements carrying the reference signals in a pattern having the highest reference signal density among the N patterns.

45. The wireless communication method according to claim 41, wherein: The number of resource elements associated with the N patterns is determined based on the number of resource elements carrying the reference signal in a pattern having the lowest reference signal density among the N patterns.

46. ​​The wireless communication method according to any one of claims 41 to 45, wherein: The N patterns form at least one basic pattern group across L scheduling units, where L is an integer greater than or equal to N, The basic pattern group is repeated on M scheduling units, where M is an integer greater than L. The transport block size is determined for each basic mode group or for all M scheduling units.

47. The wireless communication method according to claim 46, wherein: The transport block size is determined for all M scheduling units, and a modulation and coding scheme is configured for the M scheduling units.

48. The wireless communication method according to claim 46, wherein: The transport block size is determined according to the basic mode group, and the modulation and coding scheme is configured according to the basic mode group.

49. The wireless communication method according to any one of claims 41 to 45, 47 to 48, wherein: The at least one scheduling unit means resources including at least one of a group of resource blocks, a group of symbols, a group of time slots, a group of repetition units, a repetition unit, a frame or a time slot.

50. The wireless communication method according to any one of claims 41 to 45, 47 to 48, wherein: The reference signal means at least one of a demodulation reference signal, a channel state information reference signal, a phase tracking reference signal, a positioning reference signal or a sounding reference signal.

51. A wireless communication method used in a receiving node, the wireless communication method comprising: receiving data and a reference signal from a transmitting node, the reference signal comprising N patterns assigned to at least one scheduling unit, Where N is an integer greater than 1, wherein the transport block size of the data is determined based on the number of resource elements associated with the N patterns, The first scheduling unit of the at least one scheduling unit carries the reference signal, The indication for enabling the reference signal is received by the receiving node from the transmitting node or transmitted to the transmitting node, The configuration associated with the reference signal is received by the receiving node from the transmitting node or transmitted to the transmitting node, wherein the configuration includes: at least one of a factor, a bitmap, a number of scheduling units in a single repetition unit, a pre-reference signal configuration of the N modes, an additional reference signal configuration of the N modes, a time domain position of the reference signal, or a frequency position of the reference signal, The scheduling information of the data associated with the reference signal is received by the receiving node from the transmitting node or transmitted to the transmitting node, wherein the scheduling information includes: a redundancy version, a new data indicator, a modulation and coding scheme, a transmission configuration indication, a quasi-co-site relationship, a resource allocation type or at least one of a channel format.

52. The wireless communication method according to claim 51, wherein: The number of resource elements associated with the N patterns is determined based on the number of resource elements carrying the reference signals in a pattern having the highest reference signal density among the N patterns.

53. The wireless communication method according to claim 51, wherein: The number of resource elements associated with the N patterns is determined based on an average value of the number of resource elements carrying the reference signal in each of the N patterns.

54. The wireless communication method according to claim 51, wherein: The number of resource elements associated with the N patterns is determined based on the number and ratio of resource elements carrying the reference signals in a pattern having the highest reference signal density among the N patterns.

55. The wireless communication method according to claim 51, wherein: The number of resource elements associated with the N patterns is determined based on the number of resource elements carrying the reference signal in a pattern having the lowest reference signal density among the N patterns.

56. The wireless communication method according to any one of claims 51 to 55, wherein: The N patterns form at least one basic pattern group across L scheduling units, where L is an integer greater than or equal to N, The basic pattern group is repeated on M scheduling units, where M is an integer greater than L. The transport block size is determined for each basic mode group or for all M scheduling units.

57. The wireless communication method according to claim 56, wherein: The transport block size is determined for all M scheduling units, and a modulation and coding scheme is configured for the M scheduling units.

58. The wireless communication method according to claim 56, wherein: The transport block size is determined per basic mode group, and the modulation and coding scheme is configured per basic mode group.

59. The wireless communication method according to any one of claims 51 to 55, 57 to 58, wherein: The at least one scheduling unit means resources including at least one of a group of resource blocks, a group of symbols, a group of time slots, a group of repetition units, a repetition unit, a frame or a time slot.

60. The wireless communication method according to any one of claims 51 to 55, 57 to 58, wherein: The reference signal means at least one of a demodulation reference signal, a channel state information reference signal, a phase tracking reference signal, a positioning reference signal or a sounding reference signal.

61. A transmitting node, comprising: a communication unit configured to transmit a reference signal to a receiving node, wherein the reference signal includes N patterns assigned to at least one scheduling unit, Where N is an integer greater than 1, The first scheduling unit of the at least one scheduling unit carries the reference signal, The indication for enabling the reference signal is received by the transmitting node from the receiving node or transmitted to the receiving node, The configuration associated with the reference signal is received by the transmitting node from the receiving node or transmitted to the receiving node, wherein the configuration includes: at least one of a factor, a bitmap, the number of scheduling units in a single repetition unit, the pre-reference signal configuration of the N modes, the additional reference signal configuration of the N modes, the time domain position of the reference signal, or the frequency position of the reference signal, The scheduling information of the data associated with the reference signal is received by the transmitting node from the receiving node or transmitted to the receiving node, wherein the scheduling information includes: a redundancy version, a new data indicator, a modulation and coding scheme, a transmission configuration indication, a quasi-co-location relationship, a resource allocation type or at least one of a channel format.

62. The transmitting node of claim 61, further comprising a processor configured to execute the wireless communication method of any one of claims 2 to 20.

63. A receiving node, comprising: A communication unit configured to receive a reference signal from a transmitting node, wherein the reference signal includes N patterns assigned to at least one scheduling unit, Where N is an integer greater than 1, The first scheduling unit of the at least one scheduling unit carries the reference signal, The indication for enabling the reference signal is received by the receiving node from the transmitting node or transmitted to the transmitting node, The configuration associated with the reference signal is received by the receiving node from the transmitting node or transmitted to the transmitting node, wherein the configuration includes: at least one of a factor, a bitmap, a number of scheduling units in a single repetition unit, a pre-reference signal configuration of the N modes, an additional reference signal configuration of the N modes, a time domain position of the reference signal, or a frequency position of the reference signal, The scheduling information of the data associated with the reference signal is received by the receiving node from the transmitting node or transmitted to the transmitting node, wherein the scheduling information includes: a redundancy version, a new data indicator, a modulation and coding scheme, a transmission configuration indication, a quasi-co-site relationship, a resource allocation type or at least one of a channel format.

64. The receiving node of claim 63, further comprising a processor configured to perform the wireless communication method of any one of claims 22 to 40.

65. A transmitting node, comprising: a communication unit configured to transmit data and a reference signal to a receiving node, wherein the reference signal includes N patterns assigned to at least one scheduling unit, Where N is an integer greater than 1, wherein the transport block size of the data is determined based on the number of resource elements associated with the N patterns, The first scheduling unit of the at least one scheduling unit carries the reference signal, The indication for enabling the reference signal is received by the transmitting node from the receiving node or transmitted to the receiving node, The configuration associated with the reference signal is received by the transmitting node from the receiving node or transmitted to the receiving node, wherein the configuration includes: at least one of a factor, a bitmap, the number of scheduling units in a single repetition unit, the pre-reference signal configuration of the N modes, the additional reference signal configuration of the N modes, the time domain position of the reference signal, or the frequency position of the reference signal, The scheduling information of the data associated with the reference signal is received by the transmitting node from the receiving node or transmitted to the receiving node, wherein the scheduling information includes: a redundancy version, a new data indicator, a modulation and coding scheme, a transmission configuration indication, a quasi-co-location relationship, a resource allocation type or at least one of a channel format.

66. The transmitting node of claim 65, further comprising a processor configured to perform the wireless communication method of any one of claims 42 to 50.

67. A receiving node, comprising: A communication unit configured to receive data and a reference signal from a transmitting node, wherein the reference signal includes N patterns assigned to at least one scheduling unit, Where N is an integer greater than 1, wherein the transport block size of the data is determined based on the number of resource elements associated with the N patterns, The first scheduling unit of the at least one scheduling unit carries the reference signal, The indication for enabling the reference signal is received by the receiving node from the transmitting node or transmitted to the transmitting node, The configuration associated with the reference signal is received by the receiving node from the transmitting node or transmitted to the transmitting node, wherein the configuration includes: at least one of a factor, a bitmap, a number of scheduling units in a single repetition unit, a pre-reference signal configuration of the N modes, an additional reference signal configuration of the N modes, a time domain position of the reference signal, or a frequency position of the reference signal, The scheduling information of the data associated with the reference signal is received by the receiving node from the transmitting node or transmitted to the transmitting node, wherein the scheduling information includes: a redundancy version, a new data indicator, a modulation and coding scheme, a transmission configuration indication, a quasi-co-site relationship, a resource allocation type or at least one of a channel format.

68. The receiving node of claim 67, further comprising a processor configured to perform the wireless communication method of any one of claims 52 to 60.

69. A computer program product, comprising computer-readable program medium code stored thereon, which, when executed by a processor, causes the processor to implement the wireless communication method of any one of claims 1 to 60.

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