Method, device and storage medium for indicating demodulation reference signal (DMRS) pattern

Abstract

This application discloses a method, device, and storage medium for indicating a demodulation reference signal (DMRS) pattern, relating to the field of mobile communications technology. A specific implementation scheme involves: after a user device receives first indication information sent by a network device, the user device determines the DMRS pattern to be used when transmitting data over multiple time slots based on the first indication information; or, alternatively, determines the DMRS pattern to be used when transmitting data over multiple time slots based on a protocol predefined method. This effectively improves uplink channel transmission performance and increases coverage.

Description

Technical Field

[0001] The present application relates to the field of mobile communication technologies, and in particular to a method, device, and storage medium for indicating a demodulation reference signal (DMRS) pattern. Background Art

[0002] In the current 5G NR (5th Generation New RAT) mobile communication system, the DMRS (Demodulation Reference Signal) pattern used for uplink data transmission is determined in units of time slots in a semi-static configuration. That is, at the beginning of the DMRS pattern design, its goal was to meet the transmission performance of uplink data within one time slot. When uplink data is transmitted on multiple time slots, the current DMRS pattern cannot meet the requirements of multiple time slot transmission. In addition, considering the changes in channel conditions, the current method of determining the DMRS pattern through semi-static signaling cannot guarantee the transmission performance of the uplink channel. Summary of the Invention

[0003] The present application provides a method, apparatus, device and storage medium for indicating a demodulation reference signal (DMRS) pattern, which are used to solve the problem that the existing method for determining a DMRS pattern cannot guarantee uplink channel transmission performance.

[0004] In a first aspect of the present application, an embodiment provides a method applied to a user equipment UE, the method comprising:

[0005] receiving first indication information sent by the network device;

[0006] Determine, according to the first indication information, a DMRS pattern to be used when sending data on multiple time slots.

[0007] Optionally, the first indication information is carried by a reserved bit of downlink control information DCI;

[0008] The cyclic redundancy check CRC of the DCI is scrambled by one or more of a random access radio network temporary identifier RA-RNTI, a system information radio network temporary identifier SI-RNTI and a paging radio network temporary identifier P-RNTI.

[0009] Optionally, the first indication information indicates multiple candidate DMRS patterns, wherein determining, according to the first indication information, a DMRS pattern to be used when sending data on multiple time slots includes:

[0010] A DMRS pattern to be used when sending data is determined from the multiple candidate DMRS patterns according to the terminal capability of the UE.

[0011] Optionally, the first indication information indicates multiple candidate DMRS patterns, wherein determining, according to the first indication information, a DMRS pattern to be used when sending data on multiple time slots includes:

[0012] Obtaining the number of consecutive time slots occupied by uplink transmission of the UE;

[0013] A DMRS pattern to be used when sending data is determined from the multiple candidate DMRS patterns according to the number of consecutive time slots.

[0014] Optionally, receiving UE-specific terminal-specific signaling sent by the network device, wherein the UE-specific signaling includes second indication information;

[0015] If the second indication message is a preset value, parsing the reserved bits of the DCI;

[0016] If the second indication message is not the preset value, the reserved bit in the DCI is ignored.

[0017] Optionally, the second indication information is the DCI information of the UE-specific signaling or the indication information carried by the radio resource control RRC signaling.

[0018] Optionally, the first indication information is sent via RRC signaling.

[0019] Optionally, the first indication information indicates a multi-slot DMRS pattern, and the UE uses the multi-slot DMRS pattern to send DMRS when sending data on the multiple time slots.

[0020] Optionally, the first indication information indicates a set of multi-slot DMRS patterns, wherein determining, according to the first indication information, a DMRS pattern used when sending data on multiple time slots includes:

[0021] Obtaining the number of consecutive time slots occupied by uplink transmission of the UE;

[0022] The DMRS pattern is determined from the group of multi-slot DMRS patterns according to the number of consecutive time slots.

[0023] Optionally, the method further includes:

[0024] receiving a DCI sent by the network device, wherein the DCI carries third indication information;

[0025] If the third indication message is a preset value, determining a DMRS pattern to be used when sending data from the one or a group of multi-slot DMRS patterns;

[0026] If the third indication message is not the preset value, the one or a group of multi-slot DMRS patterns indicated by the first indication information is ignored.

[0027] Optionally, the first indication information is sent via Media Access Control Element MAC CE signaling.

[0028] Optionally, the first indication information indicates a multi-slot DMRS pattern, and the UE uses the multi-slot DMRS pattern to send DMRS when sending data on the multiple time slots.

[0029] Optionally, the first indication information indicates a set of multi-slot DMRS patterns, wherein determining, according to the first indication information, a DMRS pattern used when sending data on multiple time slots includes:

[0030] Obtaining the number of consecutive time slots occupied by uplink transmission of the UE;

[0031] A DMRS pattern used when sending data is determined from the group of multi-slot DMRS patterns according to the number of consecutive time slots.

[0032] Optionally, the first indication information is carried by a system information block SIB.

[0033] Optionally, the first indication information indicates multiple candidate DMRS patterns, wherein determining, according to the first indication information, a DMRS pattern to be used when sending data on multiple time slots includes:

[0034] A DMRS pattern to be used when sending data is determined from the multiple candidate DMRS patterns according to the terminal capability of the UE.

[0035] Optionally, the first indication information indicates multiple candidate DMRS patterns, wherein determining, according to the first indication information, a DMRS pattern to be used when sending data on multiple time slots includes:

[0036] Obtaining the number of consecutive time slots occupied by uplink transmission of the UE;

[0037] A DMRS pattern to be used when sending data is determined from the multiple candidate DMRS patterns according to the number of consecutive time slots.

[0038] Optionally, the method further includes:

[0039] receiving UE-specific terminal dedicated signaling from the network device, wherein the UE dedicated signaling includes second indication information;

[0040] If the second indication message is a preset value, parsing the first indication information carried by the SIB;

[0041] If the second indication message is not the preset value, the first indication information carried by the SIB is ignored.

[0042] Optionally, the second indication information is the DCI information of the UE-specific signaling or the indication information carried by the radio resource control RRC signaling.

[0043] Optionally, the first indication information is sent via a random access response RAR.

[0044] A second embodiment of the present application provides another DMRS pattern indication method, which is applied to a UE. The method includes:

[0045] Obtaining transmission parameters of the UE;

[0046] A multi-slot DMRS pattern used when sending data on multiple time slots is determined according to the transmission parameters.

[0047] Optionally, the transmission parameter is a time domain transmission duration, and determining, according to the transmission parameter, a multi-slot DMRS pattern used when sending data in multiple time slots includes:

[0048] A multi-slot DMRS pattern used when sending data on multiple time slots is determined according to the number of consecutive time slots occupied by the UE.

[0049] Optionally, determining, according to the number of consecutive time slots occupied by the UE, a multi-slot DMRS pattern used when sending data in multiple time slots includes:

[0050] If the number of consecutive time slots occupied by the UE is less than or equal to a preset threshold, determining a multi-slot DMRS pattern to be used when sending data according to the number of consecutive time slots occupied by the UE;

[0051] If the number of consecutive time slots occupied by the UE is greater than the preset threshold, the multi-slot DMRS pattern used when sending data is determined according to the preset threshold.

[0052] Optionally, determining, according to the transmission parameters, a multi-slot DMRS pattern to be used when sending data in multiple time slots includes:

[0053] Determining, according to a modulation and coding strategy (MCS) index carried in a UL grant for scheduling transmission of the uplink data channel, a DMRS pattern corresponding to the MCS index;

[0054] The DMRS pattern corresponding to the MCS index is used as the multi-slot DMRS pattern used when sending data on multiple time slots.

[0055] Optionally, for a physical uplink shared channel PUSCH, whether to adopt the multi-slot DMRS pattern is determined by one or more of the following identifiers:

[0056] Multi-slot DMRS enable flag;

[0057] Repeat transmission on flag;

[0058] Multi-slot TB processing is enabled.

[0059] Optionally, for a physical uplink control channel PUCCH, a multi-slot DMRS pattern used when transmitting the uplink control channel PUCCH in multiple time slots is determined by one or more of the following:

[0060] PRI carried in the DCI;

[0061] The combination of code rate and repetition of transmission information.

[0062] In a third aspect, an embodiment of the present application provides another method for indicating a DMRS pattern, which is applied to a network device. The method includes:

[0063] First indication information is sent to the UE, where the first indication information is used to determine a DMRS pattern used when sending data on multiple time slots.

[0064] Optionally, the first indication information is carried by a reserved bit of downlink control information DCI;

[0065] The cyclic redundancy check CRC of the DCI is scrambled by one or more of a random access radio network temporary identifier RA-RNTI, a system information radio network temporary identifier SI-RNTI and a paging radio network temporary identifier P-RNTI.

[0066] Optionally, the first indication information indicates a plurality of candidate DMRS patterns, and the first indication information is used by the UE to determine a DMRS pattern to be adopted when sending data from the plurality of candidate DMRS patterns according to the terminal capability of the UE.

[0067] Optionally, the first indication information indicates multiple alternative DMRS patterns, and the first indication information is also used by the UE to obtain the number of consecutive time slots occupied by the UE's uplink transmission, and determine the DMRS pattern used when sending data from the multiple alternative DMRS patterns based on the number of consecutive time slots.

[0068] Optionally, the method further includes:

[0069] Send UE-specific terminal-exclusive signaling to the UE, wherein the UE-specific signaling includes second indication information. If the second indication message is a preset value, the UE parses the reserved bits of the DCI; if the second indication message is not the preset value, the UE ignores the reserved bits in the DCI.

[0070] Optionally, the second indication information is the DCI information of the UE-specific signaling or the indication information carried by the radio resource control RRC signaling.

[0071] Optionally, the first indication information is sent via RRC signaling.

[0072] Optionally, the first indication information indicates a multi-slot DMRS pattern, and the UE uses the multi-slot DMRS pattern to send DMRS when sending data on the multiple time slots.

[0073] Optionally, the first indication information indicates a group of multi-slot DMRS patterns, and the first indication information is used by the UE to obtain the number of consecutive time slots occupied by the UE's uplink transmission, and determine the DMRS pattern from the group of multi-slot DMRS patterns according to the number of consecutive time slots.

[0074] Optionally, the method further includes:

[0075] Sending DCI to the UE, wherein the DCI includes third indication information, and if the third indication message is a preset value, the UE determines the DMRS pattern to be used when sending data from the one or a group of multi-slot DMRS patterns; if the third indication message is not the preset value, the UE ignores the one or a group of multi-slot DMRS patterns indicated by the first indication information.

[0076] Optionally, the first indication information is sent via Media Access Control Element MAC CE signaling.

[0077] Optionally, the first indication information indicates a multi-slot DMRS pattern, and the UE uses the multi-slot DMRS pattern to send DMRS when sending data on the multiple time slots.

[0078] Optionally, the first indication information indicates a group of multi-slot DMRS patterns, and the first indication information is also used by the UE to obtain the number of consecutive time slots occupied by the UE's uplink transmission, and determine the DMRS pattern used when sending data from the group of multi-slot DMRS patterns based on the number of consecutive time slots.

[0079] Optionally, the first indication information is carried by a system information block SIB.

[0080] Optionally, the first indication information indicates a plurality of candidate DMRS patterns, and the first indication information is used to determine a DMRS pattern to be adopted when sending data from the plurality of candidate DMRS patterns according to the terminal capability of the UE.

[0081] Optionally, the first indication information indicates multiple alternative DMRS patterns, and the first indication information is also used by the UE to obtain the number of consecutive time slots occupied by the UE's uplink transmission, and determine the DMRS pattern used when sending data from the multiple alternative DMRS patterns based on the number of consecutive time slots.

[0082] Optionally, the method further includes:

[0083] Send UE-specific terminal dedicated signaling to the UE, wherein the UE dedicated signaling includes second indication information, if the second indication message is a preset value, the UE parses the first indication information carried by the SIB; if the second indication message is not the preset value, the UE ignores the first indication information carried by the SIB.

[0084] Optionally, the second indication information is the DCI information of the UE-specific signaling or the indication information carried by the radio resource control RRC signaling.

[0085] Optionally, the first indication information is sent via a random access response RAR.

[0086] In a fourth aspect of the present application, another method for indicating a DMRS pattern is proposed, which is applied to a network device. The method includes:

[0087] Obtaining transmission parameters of the UE;

[0088] A multi-slot DMRS pattern used when the UE sends data in multiple time slots is determined according to the transmission parameters.

[0089] Optionally, the transmission parameter is a time domain transmission duration, and determining, according to the transmission parameter, a multi-slot DMRS pattern used when the UE sends data in multiple time slots includes:

[0090] A multi-slot DMRS pattern used when sending data on multiple time slots is determined according to the number of consecutive time slots occupied by the UE.

[0091] Optionally, the determining, according to the transmission parameter, a multi-slot DMRS pattern used when the UE sends data in multiple time slots includes:

[0092] Determining, according to a modulation and coding strategy (MCS) index carried in a UL grant for scheduling transmission of the uplink data channel, a DMRS pattern corresponding to the MCS index;

[0093] The DMRS pattern corresponding to the MCS index is used as the multi-slot DMRS pattern used when sending data on multiple time slots.

[0094] Optionally, for a physical uplink shared channel PUSCH, whether to adopt the multi-slot DMRS pattern is determined by one or more of the following identifiers:

[0095] Multi-slot DMRS enable flag;

[0096] Repeat transmission on flag;

[0097] Multi-slot TB processing is enabled.

[0098] Optionally, for a physical uplink control channel PUCCH, a multi-slot DMRS pattern used when transmitting the uplink control channel PUCCH in multiple time slots is determined by one or more of the following:

[0099] PRI carried in the DCI;

[0100] The fifth embodiment of the present application proposes a DMRS pattern indication device, which is applied to a UE and includes a memory, a transceiver, and a processor:

[0101] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0102] receiving first indication information sent by the network device;

[0103] Determine, according to the first indication information, a DMRS pattern to be used when sending data on multiple time slots.

[0104] In a sixth aspect, the present application provides a DMRS pattern indication device, which is applied to a UE and includes a memory, a transceiver, and a processor.

[0105] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0106] Obtaining transmission parameters of the UE;

[0107] A multi-slot DMRS pattern used when sending data on multiple time slots is determined according to the transmission parameters.

[0108] A seventh embodiment of the present application provides a DMRS pattern indication device, which is applied to a network device including a memory, a transceiver, and a processor:

[0109] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0110] First indication information is sent to the UE, where the first indication information is used to determine a DMRS pattern used when sending data on multiple time slots.

[0111] In an eighth aspect, the present application provides a DMRS pattern indication device, which is applied to a network device including a memory, a transceiver, and a processor.

[0112] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0113] Obtaining transmission parameters of the UE;

[0114] A multi-slot DMRS pattern used when the UE sends data in multiple time slots is determined according to the transmission parameters.

[0115] A ninth aspect of the present application provides a DMRS pattern indication device, which is applied to a UE and includes:

[0116] A receiving unit, configured to receive first indication information sent by a network device;

[0117] A determining unit is used to determine, according to the first indication information, a DMRS pattern used when sending data on multiple time slots.

[0118] A tenth aspect of the present application provides a DMRS pattern indication device, which is applied to a UE and includes:

[0119] an acquiring unit, configured to acquire a transmission parameter of the UE;

[0120] A determining unit is configured to determine, according to the transmission parameters, a multi-slot DMRS pattern to be used when sending data on multiple time slots.

[0121] In an eleventh aspect of the present application, a device for indicating a DMRS pattern is provided, which is applied to a network device, including:

[0122] A sending unit is used to send first indication information to the UE, wherein the first indication information is used to determine the DMRS pattern used when sending data on multiple time slots.

[0123] The twelfth embodiment of the present application provides a DMRS pattern indication device, which is applied to a network device, including:

[0124] an acquiring unit, configured to acquire a transmission parameter of the UE;

[0125] A determining unit is configured to determine, according to the transmission parameters, a multi-slot DMRS pattern used when the UE sends data in multiple time slots.

[0126] The thirteenth aspect embodiment of the present application proposes a processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the method of the first aspect embodiment, or execute the method of the second aspect embodiment, or execute the method of the third aspect embodiment, or execute the method of the fourth aspect embodiment.

[0127] One embodiment of the above-mentioned application has the following advantages or beneficial effects: after receiving the first indication information from the network device, the UE can determine the DMRS pattern to be used when sending data in multiple time slots based on the first indication information; or determine the DMRS pattern to be used when sending data in multiple time slots based on a method predefined in the protocol. This effectively improves the transmission performance of the uplink channel and increases the coverage range.

[0128] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0129] The accompanying drawings are provided to facilitate a better understanding of the present invention and do not constitute a limitation of the present application.

[0130] Figure 1 A flowchart of a method for indicating a DMRS pattern provided in Example 1 of the present application;

[0131] Figure 2 An example diagram of a multi-slot DMRS pattern provided in an embodiment of the present application;

[0132] Figure 3 A flowchart of a method for indicating a DMRS pattern provided in Example 2 of the present application;

[0133] Figure 4 A flowchart of a method for indicating a DMRS pattern provided in Example 3 of the present application;

[0134] Figure 5 A flowchart of a method for indicating a DMRS pattern provided in Example 4 of the present application;

[0135] Figure 6 A flowchart of a method for indicating a DMRS pattern provided in Example 5 of the present application;

[0136] Figure 7 A flowchart of a method for indicating a DMRS pattern provided in Example 6 of the present application;

[0137] Figure 8 A flowchart of a method for indicating a DMRS pattern provided in Example 7 of the present application;

[0138] Figure 9 A flowchart of a method for indicating a DMRS pattern provided in Example 8 of the present application;

[0139] Figure 10 A flowchart of a method for indicating a DMRS pattern provided in Example 9 of the present application;

[0140] Figure 11 A flowchart of a method for indicating a DMRS pattern provided in Example 10 of the present application;

[0141] Figure 12 A flowchart of a method for indicating a DMRS pattern provided in Example 11 of the present application;

[0142] Figure 13 A flowchart of a method for indicating a DMRS pattern provided in Example 12 of the present application;

[0143] Figure 14 A schematic diagram of a flow chart of a method for indicating a DMRS pattern provided in Example 13 of the present application;

[0144] Figure 15 A flowchart of a method for indicating a DMRS pattern provided in Example 14 of the present application;

[0145] Figure 16 A flowchart of a method for indicating a DMRS pattern provided in Example 15 of the present application;

[0146] Figure 17 A schematic structural diagram of a device for indicating a DMRS pattern provided in Example 16 of the present application;

[0147] Figure 18 A schematic structural diagram of a device for indicating a DMRS pattern provided in Example 17 of the present application;

[0148] Figure 19 A schematic structural diagram of a DMRS pattern indicating device provided in Example 18 of the present application;

[0149] Figure 20A schematic structural diagram of a device for indicating a DMRS pattern provided in Example 19 of the present application;

[0150] Figure 21 A schematic structural diagram of a DMRS pattern indicating device provided in Example 20 of the present application;

[0151] Figure 22 A schematic structural diagram of a device for indicating a DMRS pattern provided in Example 21 of the present application;

[0152] Figure 23 A schematic structural diagram of a DMRS pattern indicating device provided in Example 22 of the present application;

[0153] Figure 24 This is a structural diagram of the DMRS pattern indication device provided in Example 23 of the present application. DETAILED DESCRIPTION

[0154] In the embodiments of this application, the term "and / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0155] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0156] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0157] Currently, the DMRS pattern for uplink transmission is determined in a semi-static configuration manner in time slot units. That is, once the DMRS pattern is determined, it cannot be changed according to dynamic channel conditions.

[0158] The embodiments of the present application provide a method, apparatus, and storage medium for indicating a demodulation reference signal (DMRS) pattern, to address the technical problem that the method for determining a DMRS pattern in related technologies cannot guarantee uplink channel transmission performance.

[0159] Among them, the method and the device are based on the same application concept. Since the principles of solving problems by the method and the device are similar, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.

[0160] Figure 1This is a flowchart of the method for indicating a DMRS pattern provided in Example 1 of the present application.

[0161] The execution subject of the embodiment of the present application is the DMRS pattern indication device provided in the present application. The DMRS pattern indication device can be configured in any user equipment so that the user equipment can perform the DMRS pattern indication function.

[0162] like Figure 1 As shown, the DMRS pattern indication method, applied to a user equipment, may include the following steps:

[0163] Step 101: Receive first indication information sent by a network device.

[0164] Among them, DMRS is used for related demodulation of PUSCH (Physical Uplink Shared Channel) and PUCCH (Physical Uplink Control Channel) in LTE.

[0165] In the embodiment of the present application, a user equipment (UE) may receive first indication information sent by a network device.

[0166] The UE involved in the embodiments of the present application can be a terminal device, which can be a device that provides voice and / or data connectivity to a user, a handheld device with wireless connection capabilities, or other processing devices connected to a wireless modem. A wireless terminal device can communicate with one or more core networks (CNs) via a radio access network (RAN). The wireless terminal device can be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device. For example, it can be a portable, pocket-sized, handheld, computer-built-in, or vehicle-mounted mobile device that exchanges voice and / or data with the radio access network. For example, a Personal Communication Service (PCS) phone, a cordless phone, a Session Initiated Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, or a user device, but is not limited in the embodiments of the present application.

[0167] The network device involved in the embodiments of the present application, also known as a base station, may include multiple cells that provide services to terminals. Depending on the specific application scenario, the network device may also be called an access point, or may be a device in the access network that communicates with a wireless terminal device through one or more sectors on the air interface, or other names. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolutionary network device (eNB or e-NodeB) in the Long Term Evolution (LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), or a home evolved Node B (HeNB), a relay node, a home base station (femto), a pico base station (pico), etc., and is not limited in the embodiments of the present application. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be geographically separated.

[0168] Network devices and terminal devices can each use one or more antennas for Multiple Input Multiple Output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the form and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO. It can also use diversity transmission, precoding transmission, or beamforming transmission.

[0169] Step 102: Determine, according to the first indication information, a DMRS pattern to be used when sending data in a plurality of time slots.

[0170] In the embodiment of the present application, after receiving the first indication information sent by the network device, the UE can determine the DMRS pattern used when sending data in multiple time slots according to the first indication information.

[0171] To ensure uplink channel coverage, 5G Release 17 will enhance uplink transmission, primarily by transmitting a transport block (TB) across multiple time slots and utilizing DMRS in multiple adjacent time slots for channel estimation. As is well known, DMRS density (specifically, the number of symbols occupied in the time domain and the number of REs occupied in the frequency domain) directly impacts channel transmission performance. Specifically, a higher DMRS transmission density leads to more accurate channel estimation, but also increases the data bit rate. Therefore, ultimate transmission performance is a compromise between channel estimation and coding gain.

[0172] In this embodiment, assuming that a terminal transmits uplink data in multiple time slots, multiple DMRS patterns may be used to transmit DMRS. DMRS patterns are defined in multiple consecutive time slots and have different DMRS densities in the time-frequency domain, such as DMRS patterns A, B, C, D, etc. This application does not impose any restrictions on the specific DMRS pattern, nor does it impose any restrictions on the method for determining the DMRS pattern. For example, the DMRS pattern may be configured through explicit signaling, or may be determined through a protocol predefined method, etc.

[0173] In order to better understand the concept of multi-slot DMRS pattern, the following Figure 2 An exemplary description is given. Figure 2 This is only for illustration to facilitate understanding and does not exclude any other DMRS pattern definition methods.

[0174] In a possible case, the first indication information may be carried through a reserved bit of DCI (Downlink Control Information).

[0175] In the embodiment of the present application, the cyclic redundancy check CRC of the DCI can be scrambled by one or more of the random access radio network temporary identifier RA-RNTI, the system information radio network temporary identifier SI-RNTI and the paging radio network temporary identifier P-RNTI.

[0176] In the embodiment of the present application, assuming that the UE receives 3-bit indication information sent by the network device, the 3-bit indication information can be parsed in the following different ways:

[0177] Optionally, the 3-bit indication information indicates the number of the multi-slot DMRS pattern, and the UE determines the DMRS pattern to be adopted when performing multi-slot uplink transmission according to the indication information.

[0178] The DMRS pattern indication method of the embodiment of the present application can, after a UE receives first indication information sent by a network device, determine the DMRS pattern to be used when sending data in multiple time slots based on the first indication information. This effectively improves the transmission performance of the uplink channel and increases the coverage range.

[0179] In one possible case, when the UE receives the first indication information sent by the network device indicating multiple candidate DMRS patterns, the UE can determine the DMRS pattern to be used when sending data from the multiple candidate DMRS patterns according to its own capabilities. Figure 3 Give a detailed introduction, Figure 3 This is a flowchart of the method for indicating a DMRS pattern provided in Example 2 of the present application.

[0180] like Figure 3 As shown, the method for indicating the DMRS pattern may include the following steps:

[0181] Step 201: Receive first indication information sent by a network device.

[0182] The first indication information indicates multiple candidate DMRS patterns.

[0183] In the embodiment of the present application, the UE receives first indication information sent by the network device indicating multiple candidate DMRS patterns. For example, the first indication information may indicate three candidate DMRS patterns, such as DMRS pattern A, DMRS pattern B, and DMRS pattern C.

[0184] Step 202: Determine a DMRS pattern to be used when sending data from a plurality of candidate DMRS patterns according to the terminal capability of the UE.

[0185] In the embodiment of the present application, after the UE receives the first indication information sent by the network device indicating multiple candidate DMRS patterns, the UE can determine the adopted DMRS pattern from the multiple candidate DMRS patterns according to its own terminal capability.

[0186] It is understandable that there is a one-to-one correspondence between the DMRS pattern and the terminal capability, and the UE can determine the adopted DMRS pattern from multiple candidate DMRS patterns according to the terminal capability reported to the network device by the UE.

[0187] The DMRS pattern indication method of the embodiment of the present application receives first indication information sent by a network device, the first indication information indicating multiple candidate DMRS patterns, and determines a used DMRS pattern from the multiple candidate DMRS patterns based on the terminal capabilities of the UE. This effectively improves the transmission performance of the uplink channel and increases the coverage range.

[0188] In one possible case, when the UE receives the first indication information sent by the network device indicating multiple candidate DMRS patterns, it can also determine the DMRS pattern used when sending data from the multiple candidate DMRS patterns according to the number of consecutive time slots occupied by the UE's uplink transmission. Figure 4 Give a detailed introduction, Figure 4 This is a flowchart of the method for indicating a DMRS pattern provided in Example 3 of the present application.

[0189] like Figure 4 As shown, the method for indicating the DMRS pattern may include the following steps:

[0190] Step 301: Receive first indication information sent by a network device.

[0191] In the embodiment of the present application, the implementation process of step 301 can refer to the implementation process of step 201 in the above embodiment, and will not be repeated here.

[0192] Step 302: Obtain the number of consecutive time slots occupied by the UE's uplink transmission.

[0193] Step 303: Determine a DMRS pattern to be used when sending data from a plurality of candidate DMRS patterns according to the number of consecutive time slots.

[0194] In an embodiment of the present application, after the UE receives the first indication information sent by the network device and obtains the number of consecutive time slots occupied by uplink transmission, it can determine the DMRS pattern used when sending data from multiple alternative DMRS patterns based on the number of consecutive time slots.

[0195] It can be understood that there is a one-to-one correspondence between the DMRS pattern and the number of consecutive time slots occupied by the UE's uplink transmission. After determining the number of consecutive time slots occupied by the UE's uplink transmission, the DMRS pattern used when sending data can be determined from multiple alternative DMRS patterns based on the number of consecutive time slots.

[0196] For example, the first indication information indicates three candidate DMRS patterns, such as DMRS pattern A, DMRS pattern B, and DMRS pattern C. DMRS pattern A corresponds to a number of consecutive time slots R1, DMRS pattern B corresponds to a number of consecutive time slots R2, and DMRS pattern C corresponds to a number of consecutive time slots R3. Assuming that the number of consecutive time slots occupied by the UE's uplink transmission is R3, the adopted DMRS pattern C can be determined from the three candidate DMRS patterns.

[0197] In the DMRS pattern indication method of an embodiment of the present application, a UE receives first indication information sent by a network device, where the first indication information indicates multiple candidate DMRS patterns, obtains the number of consecutive time slots occupied by the UE's uplink transmission, and determines a DMRS pattern to be used when transmitting data from the multiple candidate DMRS patterns based on the number of consecutive time slots. This effectively improves the transmission performance of the uplink channel and increases the coverage range.

[0198] In actual scenarios, the network device can send UE-specific terminal-specific signaling to the UE, so that the UE determines whether it needs to send uplink data on multiple time slots according to the DMRS pattern indicated by the first indication information carried by the reserved bit of the DCI. Figure 5 Give a detailed introduction, Figure 5 This is a flow chart of the method for indicating a DMRS pattern provided in Example 4 of the present application.

[0199] like Figure 5 As shown, the method for indicating the DMRS pattern may include the following steps:

[0200] Step 401: Receive first indication information sent by a network device.

[0201] In the embodiment of the present application, the implementation process of step 401 can refer to the implementation process of step 301 in the above embodiment, and will not be repeated here.

[0202] Step 402: Receive UE-specific terminal exclusive signaling sent by the network device.

[0203] The UE-specific signaling includes second indication information.

[0204] Optionally, the second indication information may be DCI information of UE-specific signaling or indication information carried by RRC (Radio Resource Control) signaling.

[0205] In an embodiment of the present application, after the network device sends UE-specific signaling to the UE, the UE can determine whether to parse the reserved bits of the DCI based on the second indication information included in the UE-specific signaling after receiving the UE-specific signaling.

[0206] That is, it can be determined according to the second indication message whether it is necessary to send uplink data in multiple consecutive time slots according to the multi-slot DMRS pattern indicated by the first indication information carried by the reserved bits of the DCI.

[0207] Step 403: If the second indication message is a preset value, parse the reserved bits of the DCI.

[0208] In one possible case, the second indication message is a preset value, and the reserved bits of the DCI are parsed to determine the DMRS pattern used by the UE when sending uplink data on consecutive time slots based on the DMRS pattern indicated by the first indication message carried by the reserved bits of the DCI.

[0209] Step 404: If the second indication message is not a preset value, the reserved bits in the DCI are ignored.

[0210] In another possible case, the second indication message is not a preset value, the UE ignores the reserved bits in the DCI, and sends uplink data according to the DMRS pattern used when sending data in the current multiple time slots.

[0211] The DMRS pattern indication method involved in this embodiment can be applied to PUSCH, and / or PUCCH, and / or other types of uplink transmission, and is not limited here.

[0212] The DMRS pattern indication method of an embodiment of the present application receives UE-specific terminal-specific signaling sent by a network device, where the UE-specific signaling includes second indication information. If the second indication message is a preset value, the reserved bits in the DCI are parsed; otherwise, the reserved bits in the DCI are ignored. Thus, determining whether to parse the reserved bits in the DCI based on the second indication information effectively improves uplink channel transmission performance and increases coverage.

[0213] In actual scenarios, the UE may also determine the DMRS pattern to be used when transmitting uplink data in multiple consecutive time slots according to one or a group of multi-slot DMRS patterns indicated in the first indication information sent by RRC signaling. Figure 6 Give a detailed introduction, Figure 6 This is a flowchart of the method for indicating a DMRS pattern provided in Example 5 of the present application.

[0214] like Figure 6As shown, the DMRS pattern indication method may further include the following steps:

[0215] Step 501: Receive first indication information sent by a network device.

[0216] In the embodiment of the present application, the first indication information may be sent via RRC signaling. The RRC signaling may carry N bits of indication information for indicating the multi-slot DMRS pattern number of the UE. Assuming N=3, one of a maximum of eight multi-slot DMRS patterns may be configured for uplink data transmission.

[0217] In a possible case, the UE receives first indication information sent by the network device indicating a multi-slot DMRS pattern, and the UE may use the multi-slot DMRS pattern to send data in multiple time slots.

[0218] In another possible case, the UE receives first indication information sent by the network device indicating a group of multi-slot DMRS patterns. In this case, the method for determining the DMRS pattern used when sending data on multiple time slots can be seen in the following steps 502 and 503.

[0219] Step 502: Obtain the number of consecutive time slots occupied by the UE's uplink transmission.

[0220] Step 503: Determine a DMRS pattern from a group of multi-slot DMRS patterns according to the number of consecutive time slots.

[0221] In an embodiment of the present application, the network device may configure a set of multi-slot DMRS patterns for the UE in RRC signaling, and the UE may determine the DMRS pattern from the set of multi-slot DMRS patterns according to the number of consecutive time slots occupied by uplink transmission.

[0222] It can be understood that there is a one-to-one correspondence between a set of multi-slot DMRS patterns configured in the RRC signaling and the number of consecutive time slots occupied by the UE's uplink transmission. After determining the number of consecutive time slots occupied by the UE's uplink transmission, the DMRS pattern used when sending data can be determined from a set of multi-slot DMRS patterns based on the number of consecutive time slots.

[0223] For example, RRC signaling configures three available multi-slot DMRS patterns, such as DMRS Pattern A, DMRS Pattern B, and DMRS Pattern C. DMRS Pattern A corresponds to R1, DMRS Pattern B corresponds to R2, and DMRS Pattern C corresponds to R3. Assuming the number of consecutive slots occupied by the UE's uplink transmission is R3, the multi-slot DMRS Pattern C used for data transmission can be determined from the three available multi-slot DMRS patterns.

[0224] In the DMRS pattern indication method of the embodiment of the present application, after receiving first indication information sent by a network device via an RRC command, the UE obtains the number of consecutive time slots occupied by the UE's uplink transmission and determines a DMRS pattern from a set of multi-slot DMRS patterns based on the number of consecutive time slots. This effectively improves the transmission performance of the uplink channel and increases the coverage range.

[0225] In actual scenarios, the network device can send DCI to the UE, so that the UE can determine whether it needs to send uplink data on multiple consecutive time slots according to the multi-slot DMRS pattern indicated by the RRC signaling based on the indication information carried in the received DCI. Figure 7 Give a detailed introduction, Figure 7 This is a flowchart of the method for indicating a DMRS pattern provided in Example 6 of the present application.

[0226] like Figure 7 As shown, the method for indicating the DMRS pattern may include the following steps:

[0227] Step 601: Receive first indication information sent by a network device.

[0228] In the embodiment of the present application, the implementation process of step 601 can refer to the implementation process of step 501 in the above embodiment, and will not be repeated here.

[0229] Step 602: Receive DCI sent by a network device.

[0230] The DCI carries the third indication information.

[0231] In an embodiment of the present application, after receiving the DCI sent by the network device, the UE can determine whether to send uplink data in multiple consecutive time slots according to the multi-slot DMRS pattern indicated by the RRC instruction based on the third indication information carried in the DCI.

[0232] Step 603: If the third indication message is a preset value, determine a DMRS pattern to be used when sending data from one or a group of multi-slot DMRS patterns.

[0233] In one possible case, the third indication message is a preset value, and it is determined that uplink data is sent on multiple consecutive time slots according to the multi-slot DMRS pattern indicated by the RRC instruction, and the DMRS pattern used when sending uplink data is determined from one or a group of multi-slot DMRS patterns.

[0234] Step 604: If the third indication message is not a preset value, ignore the one or a group of multi-slot DMRS patterns indicated by the first indication message.

[0235] In another possible case, if the third indication message is not a preset value, the one or a group of multi-slot DMRS patterns indicated by the first indication information sent by the network device are ignored.

[0236] The DMRS pattern indication method of an embodiment of the present application receives first indication information sent by a network device and then receives DCI sent by the network device, wherein the DCI carries third indication information. If the third indication message is a preset value, the DMRS pattern to be used is determined from one or a group of multi-slot DMRS patterns; if the third indication message is not a preset value, the one or a group of multi-slot DMRS patterns indicated by the first indication information is ignored. Thus, based on the indication information carried in the DCI, it is determined whether to use the one or a group of multi-slot DMRS patterns indicated by the first indication information to determine the DMRS pattern to be used when sending data, effectively improving the transmission performance of the uplink channel and increasing the coverage range.

[0237] In actual scenarios, the UE can also determine the DMRS pattern used when transmitting uplink data on multiple consecutive time slots based on one or a group of multi-slot DMRS patterns indicated in the first indication information sent by the media access control element MAC CE signaling. Figure 8 Give a detailed introduction, Figure 8 This is a flow chart of the method for indicating a DMRS pattern provided in Example 7 of the present application.

[0238] like Figure 8 As shown, the DMRS pattern indication method may further include the following steps:

[0239] Step 701: Receive first indication information sent by a network device.

[0240] In order to better adapt to multi-slot uplink data transmission, it is necessary to define multiple sets of multi-slot DMRS patterns. In an embodiment of the present application, the network device can configure relevant information of the multi-slot DMRS pattern for the UE in the Media Access Control (MAC) control element (MAC CE).

[0241] In a possible case, the UE receives first indication information sent by the network device indicating a multi-slot DMRS pattern, and the UE uses the multi-slot DMRS pattern to send DMRS when sending data in multiple time slots.

[0242] In another possible case, the UE receives first indication information sent by the network device indicating a group of multi-slot DMRS patterns. In this case, the process of determining the DMRS pattern used when sending data on multiple time slots is shown in the following steps 702 and 703.

[0243] Step 702: Obtain the number of consecutive time slots occupied by the UE's uplink transmission.

[0244] Step 703: Determine a DMRS pattern to be used when sending data from a group of multi-slot DMRS patterns according to the number of consecutive time slots.

[0245] In an embodiment of the present application, the network device may configure a set of multi-slot DMRS patterns for the UE in MAC CE signaling, and the UE may determine a DMRS pattern from the set of multi-slot DMRS patterns according to the number of consecutive time slots occupied by uplink transmission.

[0246] It can be understood that there is a one-to-one correspondence between a set of multi-slot DMRS patterns configured in the MAC CE signaling and the number of consecutive time slots occupied by the UE's uplink transmission. After determining the number of consecutive time slots occupied by the UE's uplink transmission, the DMRS pattern used when sending data can be determined from a set of multi-slot DMRS patterns based on the number of consecutive time slots.

[0247] For example, MAC CE signaling configures three available multi-slot DMRS patterns, such as DMRS Pattern A, DMRS Pattern B, and DMRS Pattern C. DMRS Pattern A corresponds to R1, DMRS Pattern B corresponds to R2, and DMRS Pattern C corresponds to R3. Assuming the number of consecutive slots occupied by the UE's uplink transmission is R3, the multi-slot DMRS Pattern C used for data transmission can be determined from the three available multi-slot DMRS patterns.

[0248] In the DMRS pattern indication method of an embodiment of the present application, after a UE receives first indication information sent by a network device via MAC CE signaling, it obtains the number of consecutive time slots occupied by the UE's uplink transmission and determines a DMRS pattern from a set of multi-slot DMRS patterns based on the number of consecutive time slots. This effectively improves the transmission performance of the uplink channel and increases coverage.

[0249] In actual scenarios, the UE can also determine the DMRS pattern to be used when transmitting uplink data on multiple consecutive time slots from multiple candidate DMRS patterns indicated in the first indication information carried by the SIB (System Information Block) based on its own terminal capabilities. Figure 9 Give a detailed introduction, Figure 9 This is a flow chart of the method for indicating a DMRS pattern provided in Example 8 of the present application.

[0250] like Figure 9 As shown, the DMRS pattern indication method may further include the following steps:

[0251] Step 801: Receive first indication information sent by a network device.

[0252] In an embodiment of the present application, the network device may configure the multi-slot DMRS pattern related information for the UE in the SIB. The network device sends the SIB to the UE, so that the UE receives the first indication information sent by the network device and carried in the SIB.

[0253] Step 802: Determine a DMRS pattern to be used when sending data from a plurality of candidate DMRS patterns according to the terminal capability of the UE.

[0254] In one possible case, the first indication information carried by the SIB indicates multiple candidate DMRS patterns. After the UE receives the first indication information indicating multiple candidate DMRS patterns sent by the network device, the UE can determine the adopted DMRS pattern from the multiple candidate DMRS patterns according to its terminal capability.

[0255] It is understandable that there is a one-to-one correspondence between the DMRS pattern and the terminal capability, and the UE can determine the adopted DMRS pattern from multiple candidate DMRS patterns according to the terminal capability reported to the network device by the UE.

[0256] The DMRS pattern indication method of the embodiment of the present application receives first indication information carried by a network device via a SIB, wherein the first indication information indicates multiple candidate DMRS patterns, and determines the DMRS pattern to be used when sending data from the multiple candidate DMRS patterns based on the terminal capabilities of the UE. This effectively improves the transmission performance of the uplink channel and increases the coverage range.

[0257] In actual scenarios, the UE can also determine the DMRS pattern to be used when transmitting uplink data in multiple consecutive time slots based on the number of consecutive time slots occupied by uplink transmission and the multiple candidate DMRS patterns indicated by the first indication information carried by the SIB. Figure 10 Give a detailed introduction, Figure 10 A flowchart of the method for indicating a DMRS pattern provided in Example 9 of the present application.

[0258] like Figure 10 As shown, the DMRS pattern indication method may further include the following steps:

[0259] Step 901: Receive first indication information sent by a network device.

[0260] In the embodiment of the present application, the implementation process of step 901 can refer to the implementation process of step 801 in the above embodiment, and will not be repeated here.

[0261] Step 902: Obtain the number of consecutive time slots occupied by the UE's uplink transmission.

[0262] Step 903: Determine a DMRS pattern to be used when sending data from a plurality of candidate DMRS patterns according to the number of consecutive time slots.

[0263] In an embodiment of the present application, after the UE receives the first indication information carried by the SIB sent by the network device and obtains the number of consecutive time slots occupied by the uplink transmission, it can determine the DMRS pattern used when sending data from multiple alternative DMRS patterns based on the number of consecutive time slots.

[0264] It can be understood that there is a one-to-one correspondence between the DMRS pattern and the number of consecutive time slots occupied by the UE's uplink transmission. After determining the number of consecutive time slots occupied by the UE's uplink transmission, the DMRS pattern used when sending data can be determined from multiple alternative DMRS patterns based on the number of consecutive time slots.

[0265] For example, the first indication information indicates three candidate DMRS patterns, such as DMRS pattern A, DMRS pattern B, and DMRS pattern C. DMRS pattern A corresponds to a number of consecutive time slots R1, DMRS pattern B corresponds to a number of consecutive time slots R2, and DMRS pattern C corresponds to a number of consecutive time slots R3. Assuming that the number of consecutive time slots occupied by the UE's uplink transmission is R3, the adopted DMRS pattern C can be determined from the three candidate DMRS patterns.

[0266] In the DMRS pattern indication method of an embodiment of the present application, a UE receives first indication information carried by a network device via a SIB, where the first indication information indicates multiple candidate DMRS patterns, obtains the number of consecutive time slots occupied by the UE's uplink transmission, and determines a DMRS pattern to be used when sending data from the multiple candidate DMRS patterns based on the number of consecutive time slots. This effectively improves the transmission performance of the uplink channel and increases coverage.

[0267] In an actual scenario, the network device may send UE-specific terminal-specific signaling to the UE, so that the UE determines whether it needs to parse the first indication information carried by the SIB according to the UE-specific signaling, so as to send uplink data on multiple time slots according to the DMRS pattern indicated by the first indication information. Figure 11 Give a detailed introduction, Figure 11 This is a flowchart of the method for indicating a DMRS pattern provided in Example 10 of the present application.

[0268] like Figure 11 As shown, the method for indicating the DMRS pattern may include the following steps:

[0269] Step 1001: Receive first indication information sent by a network device.

[0270] In the embodiment of the present application, the implementation process of step 1001 can refer to the implementation process of step 901 in the above embodiment, and will not be repeated here.

[0271] Step 1002: Receive UE-specific terminal exclusive signaling sent by a network device.

[0272] The UE-specific signaling includes second indication information.

[0273] Optionally, the second indication information is DCI information of UE-specific signaling or indication information carried by RRC (Radio Resource Control) signaling.

[0274] In an embodiment of the present application, after the network device sends UE-specific signaling to the UE, the UE can determine whether to parse the first indication information carried by the SIB based on the second indication information included in the UE-specific signaling after receiving the UE-specific signaling.

[0275] That is, it can be determined according to the second indication message whether it is necessary to send uplink data in multiple consecutive time slots according to the multi-slot DMRS pattern indicated by the first indication information carried by the SIB.

[0276] Step 1003: If the second indication message is a preset value, parse the first indication information carried by the SIB.

[0277] In one possible case, the second indication message is a preset value, and the first indication information carried by the SIB is parsed to determine the DMRS pattern used by the UE when sending uplink data in consecutive time slots according to the DMRS pattern indicated by the first indication message.

[0278] Step 1004: If the second indication message is not a preset value, the first indication information carried by the SIB is ignored.

[0279] In another possible case, the second indication message is not a preset value, the UE ignores the first indication information carried by the SIB, and sends uplink data according to the DMRS pattern used when sending data in the current multiple time slots.

[0280] The DMRS pattern indication method involved in this embodiment can be applied to PUSCH, and / or PUCCH, and / or other types of uplink transmission, and is not limited here.

[0281] The DMRS pattern indication method of an embodiment of the present application receives UE-specific terminal-specific signaling sent by a network device, where the UE-specific signaling includes second indication information. If the second indication message is a preset value, the first indication information carried by the SIB is parsed; otherwise, the first indication information carried by the SIB is ignored. Thus, determining whether to parse the first indication information carried by the SIB based on the second indication information effectively improves uplink channel transmission performance and increases coverage.

[0282] In an actual scenario, the UE may also determine a DMRS pattern to be used when transmitting uplink data in multiple consecutive time slots according to a group of multi-slot DMRS patterns indicated in the first indication information sent by the random access response RAR.

[0283] In a possible case, the network device may further configure relevant information of the multi-slot DMRS pattern for the terminal in the MAC RAR. The network device sends the first indication information configured in the MAC RAR to the UE, so that the UE receives the first indication information sent by the network device.

[0284] In one possible case, the UE may determine the DMRS pattern to be used when sending data in multiple time slots according to its own terminal capability or the number of consecutive time slots occupied by uplink transmission.

[0285] As another possible implementation, the UE may implicitly determine the DMRS pattern to be used when sending uplink data in multiple consecutive time slots based on the behavior agreed upon with the network device. To this end, the present application proposes another DMRS pattern indication method.

[0286] Figure 12 This is a flowchart of the method for indicating a DMRS pattern provided in Example 11 of the present application.

[0287] like Figure 12 As shown, the method for indicating the DMRS pattern may include the following steps:

[0288] Step 1101: Acquire the transmission parameters of the UE.

[0289] The transmission parameter may be a time domain transmission duration.

[0290] Step 1102: Determine a multi-slot DMRS pattern to be used when sending data in multiple time slots according to the transmission parameters.

[0291] In an embodiment of the present application, the UE may obtain transmission parameters when transmitting data with a network device, so as to determine, based on the transmission parameters, a multi-slot DMRS pattern to be used when sending data in multiple time slots.

[0292] In one possible case, the transmission parameter may be the time domain transmission duration. In this case, the multi-slot DMRS pattern used when sending data on multiple time slots may be determined based on the number of consecutive time slots occupied by the UE. Figure 13 Give a detailed introduction, Figure 13 This is a flowchart of the method for indicating a DMRS pattern provided in Example 12 of the present application.

[0293] like Figure 13 As shown, the method for indicating the DMRS pattern may include the following steps:

[0294] Step 1201: Acquire the time domain transmission duration.

[0295] The time domain transmission duration is the number of consecutive time slots occupied by the UE for uplink data transmission. Different numbers of consecutive time slots occupied by uplink data transmission correspond to different DMRS patterns. The correspondence between DMRS patterns and time slot numbers is determined by a protocol predefined method.

[0296] Step 1202: Determine a multi-slot DMRS pattern to be used when sending data in multiple time slots according to the number of consecutive time slots occupied by the UE.

[0297] In the embodiment of the present application, after determining the number of consecutive time slots occupied by the UE for transmitting uplink data, the multi-slot DMRS pattern used when sending data on multiple time slots can be determined according to the number of consecutive time slots occupied by the UE.

[0298] In this embodiment, it is assumed that the number of consecutive time slots that can be occupied by uplink transmission is {1, 2, 4, 8}. Of course, this assumption is only used as an example to support the implementation of this solution and does not exclude other numbers of consecutive transmission time slots. Correspondingly, different numbers of transmission time slots correspond to different DMRS patterns, for example, there are {multi-slot DMRS pattern#1, multi-slot DMRSpattern#2, multi-slot DMRS pattern#3, multi-slot DMRS pattern#4} corresponding thereto. This application does not impose any restrictions on the mapping relationship between the definition of the multi-slot DMRS pattern and the number of time slots occupied by uplink transmission. For example, it can be determined in a predefined manner through the protocol or in other ways.

[0299] The network equipment and UE determine the corresponding multi-slot DMRS pattern based on the number of consecutive time slots occupied by the uplink transmission in the time domain. Accordingly, the UE sends uplink DMRS according to the multi-slot DMRS pattern, and the network equipment receives DMRS based on the multi-slot DMRS pattern for channel estimation and demodulation.

[0300] In one possible case, if the number of consecutive time slots occupied by the UE is less than or equal to a preset threshold, the multi-slot DMRS pattern used when sending data is determined according to the number of consecutive time slots occupied by the UE.

[0301] The preset threshold is a preset uplink transmission threshold, that is, the number of time slots occupied by uplink continuous transmission.

[0302] In another possible case, if the number of consecutive time slots occupied by the UE is greater than a preset threshold, the multi-slot DMRS pattern used when sending data is determined according to the preset threshold.

[0303] As a specific example, assuming the preset threshold is 4, when the number of consecutive time slots occupied by the uplink transmission is less than or equal to 4 consecutive time slots, the multi-slot DMRS pattern used for sending data is determined according to the number of consecutive time slots occupied by the current transmission. When the number of consecutive time slots occupied by the uplink transmission is greater than 4, for example, the number of consecutive time slots is 8, the DMRS is still transmitted according to the multi-slot DMRS pattern corresponding to the preset threshold of 4.

[0304] The DMRS pattern indication method of the embodiment of the present application obtains the time domain transmission duration and then determines the multi-slot DMRS pattern used when sending data in multiple time slots based on the number of consecutive time slots occupied by the UE. This effectively improves the transmission performance of the uplink channel and increases the coverage range.

[0305] As another possible implementation, the multi-slot DMRS pattern used when sending data on multiple time slots can also be determined based on relevant scheduling or indication information. Figure 14 Give a detailed introduction, Figure 14 This is a flowchart of the method for indicating a DMRS pattern provided in Example 13 of the present application.

[0306] like Figure 14 As shown, the method for indicating the DMRS pattern may include the following steps:

[0307] Step 1301: Acquire the transmission parameters of the UE.

[0308] Step 1302: Determine a DMRS pattern corresponding to the MCS index according to the modulation and coding strategy MCS index carried in the UL grant for scheduling uplink data channel transmission.

[0309] Step 1303: Use the DMRS pattern corresponding to the MCS index as the multi-slot DMRS pattern used when sending data in multiple time slots.

[0310] In the embodiment of the present application, the DMRS pattern used for multi-slot transmission may be implicitly determined at least according to the MCS.

[0311] In one possible case, for PUSCH, whether to adopt the multi-slot DMRS pattern may be determined by one or more of the following flags: a multi-slot DMRS on flag; a repeated transmission on flag; a multi-slot TB processing on flag.

[0312] In another possible case, for PUCCH, the multi-slot DMRS pattern used when sending the uplink control channel PUCCH on multiple time slots may be determined by one or more of the following: PRI carried in DCI; a combination of code rate and repetition transmission information.

[0313] For example, when repeated transmission information is enabled, a multi-slot DMRS pattern A is used for a code rate within range A, a multi-slot DMRS pattern B is used for a code rate within range B, and so on.

[0314] Based on the above embodiments, the present application proposes another method for indicating a DMRS pattern.

[0315] Figure 15 This is a flowchart of the method for indicating a DMRS pattern provided in Example 14 of the present application.

[0316] The execution subject of the embodiment of the present application is the DMRS pattern indication device provided in the present application. The DMRS pattern indication device can be configured in any network device to enable the network device to perform the DMRS pattern indication function.

[0317] like Figure 15 As shown, the DMRS pattern indication method, applied to a network device, may include the following steps:

[0318] Step 1401: Send first indication information to a UE, where the first indication information is used to determine a DMRS pattern used when sending data on multiple time slots.

[0319] In a possible case, the network device may carry the first indication information by broadcasting reserved bits of the DCI, to indicate the DMRS pattern to be adopted by the UE when sending data in multiple time slots.

[0320] The cyclic redundancy check CRC of the DCI is scrambled by one or more of the random access radio network temporary identifier RA-RNTI, the system information radio network temporary identifier SI-RNTI and the paging radio network temporary identifier P-RNTI.

[0321] Optionally, the first indication information sent by the network device to the UE indicates multiple candidate DMRS patterns, and the first indication information can be used by the UE to determine a DMRS pattern to be adopted when sending data from the multiple candidate DMRS patterns according to the terminal capability of the UE.

[0322] Optionally, the first indication information sent by the network device to the UE indicates multiple alternative DMRS patterns. The first indication information can also be used by the UE to obtain the number of consecutive time slots occupied by the UE's uplink transmission, so as to determine the DMRS pattern used when sending data from multiple alternative DMRS patterns based on the number of consecutive time slots.

[0323] In an embodiment of the present application, the network device may further send UE-specific terminal-specific signaling to the UE, wherein the UE-specific signaling includes second indication information. If the second indication message is a preset value, the UE, upon receiving the reserved bits in the DCI, parses the reserved bits in the DCI; if the second indication message is not a preset value, the UE ignores the reserved bits in the DCI.

[0324] The second indication information is DCI information of UE-specific signaling or indication information carried by radio resource control RRC signaling.

[0325] In another possible case, the network device may send first indication information to the UE via RRC signaling, wherein the first indication information carries multi-slot DMRS pattern configuration information configured by the network device in the RRC signaling, for indicating the DMRS pattern used by the UE for current multi-slot transmission.

[0326] Optionally, the network device may send first indication information to the UE through RRC signaling to indicate a multi-slot DMRS pattern, and the UE uses the multi-slot DMRS pattern to send DMRS when sending data in multiple time slots.

[0327] Optionally, the network device may indicate a group of multi-slot DMRS patterns by sending first indication information to the UE via RRC signaling. The first indication information is used by the UE to obtain the number of consecutive time slots occupied by the UE's uplink transmission, and determine the DMRS pattern from a group of multi-slot DMRS patterns based on the number of consecutive time slots.

[0328] In another possible case, the network device may also send DCI to the UE, wherein the DCI includes third indication information. If the third indication message is a preset value, the UE determines the DMRS pattern to be used when sending data from the one or a group of multi-slot DMRS patterns; if the third indication message is not a preset value, the UE ignores the one or a group of multi-slot DMRS patterns indicated by the first indication information.

[0329] In another possible case, the network device may also send first indication information to the UE through MAC CE signaling, so as to indicate the multi-slot DMRS pattern adopted by the UE during multi-slot uplink transmission according to the first indication information.

[0330] Optionally, when the first indication information sent by the network device to the UE through MAC CE signaling indicates a DMRS pattern, the UE uses the DMRS pattern to send DMRS when sending data in multiple time slots.

[0331] Optionally, when the network device sends the first indication information to the UE via MAC CE signaling, indicating a group of multi-slot DMRS patterns, the first indication information can also be used by the UE to obtain the number of consecutive time slots occupied by the UE's uplink transmission, and determine the DMRS pattern used when sending data from the group of multi-slot DMRS patterns based on the number of consecutive time slots. In another possible scenario, the network device carries the first indication information via the SIB to indicate the multi-slot DMRS pattern used by the UE during multi-slot uplink transmission based on the first indication information.

[0332] Optionally, the network device carries first indication information through the SIB, where the first indication information indicates multiple candidate DMRS patterns. The first indication information can be used to determine a DMRS pattern to be used when sending data from the multiple candidate DMRS patterns according to the terminal capability of the UE.

[0333] Optionally, the network device carries first indication information through the SIB, where the first indication information indicates multiple alternative DMRS patterns. The first indication information can also be used by the UE to obtain the number of consecutive time slots occupied by the UE's uplink transmission, and determine the DMRS pattern used when sending data from multiple alternative DMRS patterns based on the number of consecutive time slots.

[0334] In another possible scenario, the network device may send UE-specific terminal-specific signaling to the UE, wherein the UE-specific signaling includes second indication information. If the second indication message is a preset value, the UE parses the first indication information carried by the SIB; if the second indication message is not the preset value, the UE ignores the first indication information carried by the SIB.

[0335] The second indication information is DCI information of UE-specific signaling or indication information carried by radio resource control RRC signaling.

[0336] In another possible case, the network device may also send first indication information to the UE through the RAR, so as to indicate the multi-slot DMRS pattern adopted by the UE during multi-slot uplink transmission according to the first indication information.

[0337] It should be noted that, for those skilled in the art, the above Figures 1 to 12 The explanation and technical details of the method for indicating the DMRS pattern executed by the user equipment in any embodiment are also applicable to the above-mentioned network equipment. The implementation principles are similar and will not be repeated here.

[0338] On the basis of the above embodiment, the network device may also inform the UE of the multi-slot DMRS pattern used in multi-slot uplink transmission through implicit indication signaling. Figure 16 Give a detailed introduction, Figure 16 This is a flowchart of the method for indicating a DMRS pattern provided in Example 15 of the present application.

[0339] like Figure 16 As shown, the indication of the DMRS pattern may include the following steps:

[0340] Step 1501: Acquire the transmission parameters of the UE.

[0341] Step 1502: Determine, based on the transmission parameters, a multi-slot DMRS pattern to be used when the UE sends data in multiple time slots.

[0342] In one possible case, the transmission parameter may be a time domain transmission duration. In this case, the multi-slot DMRS pattern used when sending data in multiple time slots may be determined according to the number of consecutive time slots occupied by the UE.

[0343] In another possible case, the DMRS pattern corresponding to the MCS index can be determined based on the modulation and coding strategy MCS index carried in the UL grant for scheduling uplink data channel transmission, and the DMRS pattern corresponding to the MCS index can be used as the multi-slot DMRS pattern used when sending data on multiple time slots.

[0344] In another possible case, for the physical uplink shared channel PUSCH, whether to adopt the multi-slot DMRS pattern is determined by one or more of the following flags: a multi-slot DMRS on flag; a repeated transmission on flag; a multi-slot TB processing on flag.

[0345] In another possible case, for the physical uplink control channel PUCCH, the multi-slot DMRS pattern used when sending the uplink control channel PUCCH on multiple time slots is determined by one or more of the following: PRI carried in DCI; a combination of code rate and repetition transmission information. It should be noted that for those skilled in the art, the above Figures 13 and 14 The explanation and technical details of the method for indicating the DMRS pattern executed by the user equipment in any embodiment are also applicable to the above-mentioned network equipment. The implementation principles are similar and will not be repeated here.

[0346] The technical solution provided in the embodiment of the present application can be applicable to a variety of systems, especially 5G systems. For example, the applicable system can be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, a long term evolution (LTE) system, a LTE frequency division duplex (FDD) system, a LTE time division duplex (TDD) system, an advanced long term evolution (LTE-A) system, a universal mobile telecommunication system (UMTS), a world-wide interoperability for microwave access (WiMAX) system, a 5G new air interface (NR) system, etc. These various systems include terminal equipment and network equipment. The system may also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.

[0347] In order to implement the above embodiment, the present application proposes a DMRS pattern indication device.

[0348] Figure 17 This is a structural diagram of the DMRS pattern indication device provided in Example 16 of the present application.

[0349] like Figure 17 As shown, the DMRS pattern indication device is applied to UE, including a memory 110, a transceiver 120, and a processor 130:

[0350] The memory 110 is used to store computer programs; the transceiver 120 is used to send and receive data under the control of the processor; the processor 130 is used to read the computer program in the memory and perform the following operations:

[0351] receiving first indication information sent by the network device;

[0352] Determine, according to the first indication information, a DMRS pattern used when sending data on multiple time slots.

[0353] The transceiver 120 is configured to receive and send data under the control of the processor 130 .

[0354] Among them, Figure 17 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by the processor 130 and the memory represented by the memory 110. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are all well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 120 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, such as a wireless channel, a wired channel, an optical cable, and the like. For different user devices, the user interface 140 may also be an interface capable of connecting external or internal devices as required, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0355] The processor 130 is responsible for managing the bus architecture and general processing, and the memory 110 can store data used by the processor when performing operations.

[0356] Optionally, the processor 130 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array) or a CPLD (Complex Programmable Logic Device), and the processor may also adopt a multi-core architecture.

[0357] The processor calls the computer program stored in the memory to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0358] In a possible implementation, the first indication information is carried by a reserved bit of downlink control information DCI;

[0359] The cyclic redundancy check CRC of the DCI is scrambled by one or more of the random access radio network temporary identifier RA-RNTI, the system information radio network temporary identifier SI-RNTI and the paging radio network temporary identifier P-RNTI.

[0360] In another possible implementation, the first indication information indicates multiple candidate DMRS patterns, wherein determining, according to the first indication information, the DMRS pattern to be used when sending data on multiple time slots includes:

[0361] The DMRS pattern used when sending data is determined from a plurality of candidate DMRS patterns according to the terminal capability of the UE.

[0362] In another possible implementation, the first indication information indicates multiple candidate DMRS patterns, wherein determining, according to the first indication information, the DMRS pattern to be used when sending data on multiple time slots includes:

[0363] Obtain the number of consecutive time slots occupied by the UE's uplink transmission;

[0364] A DMRS pattern used when sending data is determined from a plurality of candidate DMRS patterns according to the number of consecutive time slots.

[0365] In another possible implementation, the method further includes:

[0366] Receiving UE-specific terminal-specific signaling sent by a network device, wherein the UE-specific signaling includes second indication information;

[0367] If the second indication message is a preset value, parsing the reserved bits of the DCI;

[0368] If the second indication message is not a preset value, the reserved bits in the DCI are ignored.

[0369] In another possible implementation manner, the second indication information is DCI information of UE-specific signaling or indication information carried by radio resource control RRC signaling.

[0370] In another possible implementation manner, the first indication information is sent through RRC signaling.

[0371] In another possible implementation, the first indication information indicates a multi-slot DMRS pattern, and the UE uses the multi-slot DMRS pattern to send DMRS when sending data in multiple time slots.

[0372] In another possible implementation, the first indication information indicates a set of multi-slot DMRS patterns, wherein determining, according to the first indication information, a DMRS pattern to be used when sending data on multiple time slots includes:

[0373] Obtain the number of consecutive time slots occupied by the UE's uplink transmission;

[0374] A DMRS pattern is determined from a group of multi-slot DMRS patterns according to the number of consecutive time slots.

[0375] In another possible implementation, the method further includes:

[0376] receiving a DCI sent by a network device, where the DCI carries third indication information;

[0377] If the third indication message is a preset value, determining a DMRS pattern to be used when sending data from one or a group of multi-slot DMRS patterns;

[0378] If the third indication message is not a preset value, the one or a group of multi-slot DMRS patterns indicated by the first indication information is ignored.

[0379] In another possible implementation manner, the first indication information is sent through Media Access Control Element MAC CE signaling.

[0380] In another possible implementation, the first indication information indicates a multi-slot DMRS pattern, and the UE uses the multi-slot DMRS pattern to send DMRS when sending data in multiple time slots.

[0381] In another possible implementation, the first indication information indicates a set of multi-slot DMRS patterns, wherein determining, according to the first indication information, a DMRS pattern to be used when sending data on multiple time slots includes:

[0382] Obtain the number of consecutive time slots occupied by the UE's uplink transmission;

[0383] The DMRS pattern used when sending data is determined from a group of multi-slot DMRS patterns according to the number of consecutive time slots.

[0384] In another possible implementation manner, the first indication information is carried by a system information block SIB.

[0385] In another possible implementation, the first indication information indicates multiple candidate DMRS patterns, wherein determining, according to the first indication information, the DMRS pattern to be used when sending data on multiple time slots includes:

[0386] The DMRS pattern used when sending data is determined from a plurality of candidate DMRS patterns according to the terminal capability of the UE.

[0387] In another possible implementation, the first indication information indicates multiple candidate DMRS patterns, wherein determining, according to the first indication information, the DMRS pattern to be used when sending data on multiple time slots includes:

[0388] Obtain the number of consecutive time slots occupied by the UE's uplink transmission;

[0389] A DMRS pattern used when sending data is determined from a plurality of candidate DMRS patterns according to the number of consecutive time slots.

[0390] In another possible implementation, the method further includes:

[0391] receiving UE-specific terminal dedicated signaling from a network device, wherein the UE dedicated signaling includes second indication information;

[0392] If the second indication message is a preset value, parsing the first indication information carried by the SIB;

[0393] If the second indication message is not a preset value, the first indication information carried by the SIB is ignored.

[0394] In another possible implementation manner, the second indication information is DCI information of UE-specific signaling or indication information carried by radio resource control RRC signaling.

[0395] In another possible implementation manner, the first indication information is sent through a random access response RAR.

[0396] It should be noted that the DMRS pattern indication device provided in the embodiment of the present application can achieve the above Figures 1 to 12 All the method steps implemented in the method embodiment can achieve the same technical effects, and the parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0397] In order to implement the above embodiment, the present application proposes a DMRS pattern indication device.

[0398] Figure 18 This is a structural diagram of the DMRS pattern indication device provided in Example 17 of the present application.

[0399] like Figure 18 As shown, the DMRS pattern indication device is applied to UE, including a memory 210, a transceiver 220, and a processor 230:

[0400] The memory 210 is used to store computer programs; the transceiver 220 is used to send and receive data under the control of the processor; the processor 230 is used to read the computer program in the memory and perform the following operations:

[0401] Obtaining UE transmission parameters;

[0402] A multi-slot DMRS pattern used when sending data on multiple time slots is determined according to the transmission parameters.

[0403] The transceiver 220 is configured to receive and send data under the control of the processor 230 .

[0404] Among them, Figure 18 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 230 and memory represented by memory 210. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 220 may be a plurality of components, i.e., a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, such as a wireless channel, a wired channel, an optical cable, and the like. For different user devices, the user interface 240 may also be an interface capable of connecting external or internal devices as required, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0405] The processor 230 is responsible for managing the bus architecture and general processing, and the memory 210 can store data used by the processor when performing operations.

[0406] Optionally, the processor 230 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array) or a CPLD (Complex Programmable Logic Device), and the processor may also adopt a multi-core architecture.

[0407] The processor calls the computer program stored in the memory to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0408] In one possible implementation, the transmission parameter is a time domain transmission duration, and determining a multi-slot DMRS pattern used when sending data in multiple time slots based on the transmission parameter includes:

[0409] The multi-slot DMRS pattern used when sending data on multiple time slots is determined according to the number of consecutive time slots occupied by the UE.

[0410] In another possible implementation, determining a multi-slot DMRS pattern to be used when sending data in multiple time slots according to the number of consecutive time slots occupied by the UE includes:

[0411] If the number of consecutive time slots occupied by the UE is less than or equal to the preset threshold, the multi-slot DMRS pattern used when sending data is determined according to the number of consecutive time slots occupied by the UE;

[0412] If the number of consecutive time slots occupied by the UE is greater than a preset threshold, the multi-slot DMRS pattern used when sending data is determined according to the preset threshold.

[0413] In another possible implementation, determining, based on transmission parameters, a multi-slot DMRS pattern to be used when sending data in multiple time slots includes:

[0414] Determine the DMRS pattern corresponding to the MCS index according to the modulation and coding strategy MCS index carried in the UL grant for scheduling uplink data channel transmission;

[0415] The DMRS pattern corresponding to the MCS index is used as the multi-slot DMRS pattern used when sending data on multiple time slots.

[0416] In another possible implementation, for the physical uplink shared channel PUSCH, whether to adopt the multi-slot DMRS pattern is determined by one or more of the following flags: a multi-slot DMRS on flag; a repeated transmission on flag; or a multi-slot TB processing on flag.

[0417] In another possible implementation, for the physical uplink control channel PUCCH, the multi-slot DMRS pattern used when sending the uplink control channel PUCCH on multiple time slots is determined by one or more of the following: PRI carried in DCI; a combination of code rate and repetition transmission information.

[0418] It should be noted that the DMRS pattern indication device provided in the embodiment of the present application can achieve the above Figures 13 and 14 All the method steps implemented in the method embodiment can achieve the same technical effects, and the parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0419] In order to implement the above embodiment, the present application proposes another DMRS pattern indicating device.

[0420] Figure 19 This is a structural diagram of the DMRS pattern indication device provided in Example 18 of the present application.

[0421] like Figure 19 As shown, the DMRS pattern indication device is applied to a network device, including a memory 310, a transceiver 320, and a processor 330:

[0422] The memory 310 is used to store computer programs; the transceiver 320 is used to send and receive data under the control of the processor 330; the processor 330 is used to read the computer program in the memory 310 and perform the following operations:

[0423] First indication information is sent to the UE, where the first indication information is used to determine a DMRS pattern used when sending data on multiple time slots.

[0424] Among them, Figure 19 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 330 and memory represented by memory 310. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be further described herein. The bus interface provides an interface. The transceiver 320 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, such as a wireless channel, a wired channel, an optical cable, or the like.

[0425] The processor 330 is responsible for managing the bus architecture and general processing, and the memory 310 can store data used by the processor 330 when performing operations.

[0426] The processor 330 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0427] In a possible implementation, the first indication information is carried by a reserved bit of downlink control information DCI;

[0428] The cyclic redundancy check CRC of the DCI is scrambled by one or more of the random access radio network temporary identifier RA-RNTI, the system information radio network temporary identifier SI-RNTI and the paging radio network temporary identifier P-RNTI.

[0429] In another possible implementation, the first indication information indicates a plurality of candidate DMRS patterns, and the first indication information is used by the UE to determine a DMRS pattern to be adopted when sending data from the plurality of candidate DMRS patterns according to the terminal capability of the UE.

[0430] In another possible implementation, the first indication information indicates multiple alternative DMRS patterns, and the first indication information is also used by the UE to obtain the number of consecutive time slots occupied by the UE's uplink transmission, and determine the DMRS pattern used when sending data from multiple alternative DMRS patterns based on the number of consecutive time slots.

[0431] In another possible implementation, the method further includes:

[0432] Send UE-specific terminal-exclusive signaling to the UE, wherein the UE-specific signaling includes a second indication information. If the second indication message is a preset value, the UE parses the reserved bits of the DCI; if the second indication message is not a preset value, the UE ignores the reserved bits in the DCI.

[0433] In another possible implementation manner, the second indication information is DCI information of UE-specific signaling or indication information carried by radio resource control RRC signaling.

[0434] In another possible implementation manner, the first indication information is sent via RRC signaling.

[0435] In another possible implementation, the first indication information indicates a multi-slot DMRS pattern, and the UE uses the multi-slot DMRS pattern to send DMRS when sending data in multiple time slots.

[0436] In another possible implementation, the first indication information indicates a group of multi-slot DMRS patterns, and the first indication information is used by the UE to obtain the number of consecutive time slots occupied by the UE's uplink transmission, and determine the DMRS pattern from a group of multi-slot DMRS patterns according to the number of consecutive time slots.

[0437] In another possible implementation, the method further includes:

[0438] Sending DCI to the UE, wherein the DCI includes third indication information, and if the third indication message is a preset value, the UE determines the DMRS pattern to be used when sending data from the one or a group of multi-slot DMRS patterns; if the third indication message is not a preset value, the UE ignores the one or a group of multi-slot DMRS patterns indicated by the first indication information.

[0439] In another possible implementation manner, the first indication information is sent through Media Access Control Element MAC CE signaling.

[0440] In another possible implementation, the first indication information indicates a multi-slot DMRS pattern, and the UE uses the multi-slot DMRS pattern to send DMRS when sending data in multiple time slots.

[0441] In another possible implementation, the first indication information indicates a group of multi-slot DMRS patterns, and the first indication information is also used by the UE to obtain the number of consecutive time slots occupied by the UE's uplink transmission, and determine the DMRS pattern used when sending data from a group of multi-slot DMRS patterns based on the number of consecutive time slots.

[0442] In another possible implementation manner, the first indication information is carried by a system information block SIB.

[0443] In another possible implementation, the first indication information indicates a plurality of candidate DMRS patterns, and the first indication information is used to determine a DMRS pattern to be used when sending data from the plurality of candidate DMRS patterns according to the terminal capability of the UE.

[0444] In another possible implementation, the first indication information indicates multiple alternative DMRS patterns, and the first indication information is also used by the UE to obtain the number of consecutive time slots occupied by the UE's uplink transmission, and determine the DMRS pattern used when sending data from multiple alternative DMRS patterns based on the number of consecutive time slots.

[0445] In another possible implementation, the method further includes:

[0446] Send UE-specific terminal dedicated signaling to the UE, wherein the UE dedicated signaling includes second indication information. If the second indication message is a preset value, the UE parses the first indication information carried by the SIB; if the second indication message is not the preset value, the UE ignores the first indication information carried by the SIB.

[0447] In another possible implementation manner, the second indication information is DCI information of UE-specific signaling or indication information carried by radio resource control RRC signaling.

[0448] In another possible implementation manner, the first indication information is sent through a random access response RAR.

[0449] It should be noted that the DMRS pattern indication device provided in the embodiment of the present application can achieve the above Figure 15 All the method steps implemented in the method embodiment can achieve the same technical effects, and the parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0450] In order to implement the above embodiment, the present application proposes another DMRS pattern indicating device.

[0451] Figure 20 This is a structural diagram of the DMRS pattern indication device provided in Example 19 of the present application.

[0452] like Figure 20 As shown, the DMRS pattern indicating device is applied to a network device, including a memory 410, a transceiver 420, and a processor 430:

[0453] The memory 410 is used to store computer programs; the transceiver 420 is used to send and receive data under the control of the processor 430; the processor 430 is used to read the computer program in the memory 410 and perform the following operations:

[0454] Obtaining UE transmission parameters;

[0455] The multi-slot DMRS pattern used when the UE sends data in multiple time slots is determined according to the transmission parameters.

[0456] Among them, Figure 20 In the embodiment of the present invention, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits such as one or more processors represented by processor 430 and memory represented by memory 410. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be further described herein. The bus interface provides an interface. The transceiver 420 can be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, such as a wireless channel, a wired channel, an optical cable, or the like.

[0457] The processor 430 is responsible for managing the bus architecture and general processing, and the memory 410 can store data used by the processor 430 when performing operations.

[0458] The processor 430 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0459] In one possible implementation, the transmission parameter is a time domain transmission duration, and determining, based on the transmission parameter, a multi-slot DMRS pattern used when the UE sends data in multiple time slots includes:

[0460] A multi-slot DMRS pattern used when sending data on multiple time slots is determined according to the number of consecutive time slots occupied by the UE.

[0461] In another possible implementation, determining, according to the transmission parameters, a multi-slot DMRS pattern used when the UE sends data in multiple time slots includes:

[0462] Determine the DMRS pattern corresponding to the MCS index according to the modulation and coding strategy MCS index carried in the UL grant for scheduling uplink data channel transmission;

[0463] The DMRS pattern corresponding to the MCS index is used as the multi-slot DMRS pattern used when sending data on multiple time slots.

[0464] In another possible implementation, for the physical uplink shared channel PUSCH, whether to adopt the multi-slot DMRS pattern is determined by one or more of the following flags: a multi-slot DMRS on flag; a repeated transmission on flag; or a multi-slot TB processing on flag.

[0465] In another possible implementation, for the physical uplink control channel PUCCH, the multi-slot DMRS pattern used when sending the uplink control channel PUCCH on multiple time slots is determined by one or more of the following: PRI carried in DCI; a combination of code rate and repetition transmission information.

[0466] It should be noted that the DMRS pattern indication device provided in the embodiment of the present application can achieve the above Figure 16 All the method steps implemented in the method embodiment can achieve the same technical effects, and the parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0467] In order to implement the above embodiment, the embodiment of the present application proposes another DMRS pattern indication device.

[0468] Figure 21 This is a structural diagram of the DMRS pattern indication device provided in Example 20 of the present application.

[0469] like Figure 21 As shown, the DMRS pattern indication device 2100, applied to a UE, may include: a receiving unit 2110 and a determining unit 2120.

[0470] The receiving unit 2110 is configured to receive first indication information sent by a network device;

[0471] The determining unit 2120 is configured to determine, according to the first indication information, a DMRS pattern to be used when sending data in a plurality of time slots.

[0472] In a possible implementation, the first indication information is carried by a reserved bit of downlink control information DCI;

[0473] The cyclic redundancy check CRC of the DCI is scrambled by one or more of the random access radio network temporary identifier RA-RNTI, the system information radio network temporary identifier SI-RNTI and the paging radio network temporary identifier P-RNTI.

[0474] In another possible implementation, the first indication information indicates multiple candidate DMRS patterns, and the determining unit 2120 may be further configured to:

[0475] The DMRS pattern used when sending data is determined from a plurality of candidate DMRS patterns according to the terminal capability of the UE.

[0476] In another possible implementation, the first indication information indicates multiple candidate DMRS patterns, and the determining unit 2120 may be further configured to:

[0477] Obtain the number of consecutive time slots occupied by the UE's uplink transmission;

[0478] A DMRS pattern used when sending data is determined from a plurality of candidate DMRS patterns according to the number of consecutive time slots.

[0479] In another possible implementation, the DMRS pattern indicating device 2100 may further include:

[0480] A first signaling receiving unit is configured to receive UE-specific terminal-specific signaling sent by a network device, wherein the UE-specific signaling includes second indication information;

[0481] A processing unit is configured to parse the reserved bits of the DCI if the second indication message is a preset value; and ignore the reserved bits in the DCI if the second indication message is not a preset value.

[0482] In another possible implementation manner, the second indication information is DCI information of UE-specific signaling or indication information carried by radio resource control RRC signaling.

[0483] In another possible implementation manner, the first indication information is sent through RRC signaling.

[0484] In another possible implementation, the first indication information indicates a multi-slot DMRS pattern, and the UE uses the multi-slot DMRS pattern to send DMRS when sending data in multiple time slots.

[0485] In another possible implementation, the first indication information indicates a group of multi-slot DMRS patterns, and the determining unit 2120 may further be configured to:

[0486] The number of consecutive time slots occupied by uplink transmission of the UE is obtained; and a DMRS pattern is determined from a set of multi-slot DMRS patterns according to the number of consecutive time slots.

[0487] In another possible implementation, the DMRS pattern indicating device 2100 may further include:

[0488] A second signaling receiving unit is configured to receive a DCI sent by a network device, wherein the DCI carries third indication information;

[0489] A processing unit, configured to determine, if the third indication message is a preset value, a DMRS pattern to be used when sending data from one or a group of multi-slot DMRS patterns; and to ignore, if the third indication message is not a preset value, the one or a group of multi-slot DMRS patterns indicated by the first indication information.

[0490] In another possible implementation manner, the first indication information is sent through Media Access Control Element MAC CE signaling.

[0491] In another possible implementation, the first indication information indicates a multi-slot DMRS pattern, and the UE uses the multi-slot DMRS pattern to send DMRS when sending data in multiple time slots.

[0492] In another possible implementation, the first indication information indicates a group of multi-slot DMRS patterns, and the determining unit 2120 may be further configured to:

[0493] Obtain the number of consecutive time slots occupied by the UE's uplink transmission;

[0494] The DMRS pattern used when sending data is determined from a group of multi-slot DMRS patterns according to the number of consecutive time slots.

[0495] In another possible implementation manner, the first indication information is carried by a system information block SIB.

[0496] In another possible implementation, the first indication information indicates multiple candidate DMRS patterns, and the determining unit 2120 may be further configured to:

[0497] The DMRS pattern used when sending data is determined from a plurality of candidate DMRS patterns according to the terminal capability of the UE.

[0498] In another possible implementation, the first indication information indicates multiple candidate DMRS patterns, and the determining unit 2120 may be further configured to:

[0499] Obtain the number of consecutive time slots occupied by the UE's uplink transmission;

[0500] A DMRS pattern used when sending data is determined from a plurality of candidate DMRS patterns according to the number of consecutive time slots.

[0501] In another possible implementation, the DMRS pattern indicating device 2100 may further include:

[0502] A third signaling receiving unit is configured to receive UE-specific terminal dedicated signaling from a network device, wherein the UE dedicated signaling includes second indication information;

[0503] The processing unit is configured to parse the first indication information carried by the SIB if the second indication message is a preset value; and ignore the first indication information carried by the SIB if the second indication message is not a preset value.

[0504] In another possible implementation manner, the second indication information is DCI information of UE-specific signaling or indication information carried by radio resource control RRC signaling.

[0505] In another possible implementation manner, the first indication information is sent through a random access response RAR.

[0506] It should be noted that the DMRS pattern indication device provided in the embodiment of the present application can achieve the above Figures 1 to 12 All the method steps implemented in the method embodiment can achieve the same technical effects, and the parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0507] In order to implement the above embodiment, the present application proposes another DMRS pattern indicating device.

[0508] Figure 22 This is a structural diagram of the DMRS pattern indication device provided in Example 21 of the present application.

[0509] like Figure 22 As shown, the DMRS pattern indication device 2200, applied to a UE, may include: an acquisition unit 2210 and a determination unit 2220.

[0510] The acquisition unit 2210 is configured to acquire the transmission parameters of the UE.

[0511] The determining unit 2220 is configured to determine, according to the transmission parameters, a multi-slot DMRS pattern to be used when sending data in multiple time slots.

[0512] In a possible implementation, the transmission parameter is a time domain transmission duration, and the determining unit 2220 may be further configured to:

[0513] The multi-slot DMRS pattern used when sending data on multiple time slots is determined according to the number of consecutive time slots occupied by the UE.

[0514] In another possible implementation, the determining unit 2220 may also be configured to:

[0515] If the number of consecutive time slots occupied by the UE is less than or equal to the preset threshold, the multi-slot DMRS pattern used when sending data is determined according to the number of consecutive time slots occupied by the UE;

[0516] If the number of consecutive time slots occupied by the UE is greater than the preset threshold, the multi-slot DMRS pattern used when sending data is determined according to the preset threshold.

[0517] In another possible implementation, the determining unit 2220 may also be configured to:

[0518] Determine the DMRS pattern corresponding to the MCS index according to the modulation and coding strategy MCS index carried in the UL grant for scheduling uplink data channel transmission;

[0519] The DMRS pattern corresponding to the MCS index is used as the multi-slot DMRS pattern used when sending data on multiple time slots.

[0520] In another possible implementation, for the physical uplink shared channel PUSCH, whether to adopt the multi-slot DMRS pattern is determined by one or more of the following flags: a multi-slot DMRS on flag; a repeated transmission on flag; or a multi-slot TB processing on flag.

[0521] In another possible implementation, for the physical uplink control channel PUCCH, the multi-slot DMRS pattern used when sending the uplink control channel PUCCH on multiple time slots is determined by one or more of the following: PRI carried in DCI; a combination of code rate and repetition transmission information.

[0522] It should be noted that the DMRS pattern indication device provided in the embodiment of the present application can achieve the above Figures 13 and 14 All the method steps implemented in the method embodiment can achieve the same technical effects, and the parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0523] In order to implement the above embodiment, the present application proposes another DMRS pattern indicating device.

[0524] Figure 23 This is a structural diagram of the DMRS pattern indication device provided in Example 22 of the present application.

[0525] like Figure 23 As shown, the DMRS pattern indicating device 2300 is applied to a network device, including:

[0526] The sending unit 2310 is configured to send first indication information to the UE, where the first indication information is used to determine a DMRS pattern used when sending data on multiple time slots.

[0527] In one possible implementation, the first indication information is carried by the reserved bits of the downlink control information DCI; the cyclic redundancy check CRC of the DCI is scrambled by one or more of the random access radio network temporary identifier RA-RNTI, the system information radio network temporary identifier SI-RNTI and the paging radio network temporary identifier P-RNTI.

[0528] In another possible implementation, the first indication information indicates a plurality of candidate DMRS patterns, and the first indication information is used by the UE to determine a DMRS pattern to be adopted when sending data from the plurality of candidate DMRS patterns according to the terminal capability of the UE.

[0529] In another possible implementation, the first indication information indicates multiple alternative DMRS patterns, and the first indication information is also used by the UE to obtain the number of consecutive time slots occupied by the UE's uplink transmission, and determine the DMRS pattern used when sending data from multiple alternative DMRS patterns based on the number of consecutive time slots.

[0530] In another possible implementation, the DMRS pattern indicating device 2300 may further include:

[0531] The first signaling sending unit is used to send UE-specific terminal-exclusive signaling to the UE, wherein the UE-specific signaling includes second indication information. If the second indication message is a preset value, the UE parses the reserved bits of the DCI; if the second indication message is not a preset value, the UE ignores the reserved bits in the DCI.

[0532] In another possible implementation manner, the second indication information is DCI information of UE-specific signaling or indication information carried by radio resource control RRC signaling.

[0533] In another possible implementation manner, the first indication information is sent through RRC signaling.

[0534] In another possible implementation, the first indication information indicates a multi-slot DMRS pattern, and the UE uses the multi-slot DMRS pattern to send DMRS when sending data in multiple time slots.

[0535] In another possible implementation, the first indication information indicates a group of multi-slot DMRS patterns, and the first indication information is used by the UE to obtain the number of consecutive time slots occupied by the UE's uplink transmission, and determine the DMRS pattern from a group of multi-slot DMRS patterns according to the number of consecutive time slots.

[0536] In another possible implementation, the DMRS pattern indicating device 2300 may further include:

[0537] The second signaling sending unit is used to send DCI to the UE, wherein the DCI includes third indication information. If the third indication message is a preset value, the UE determines the DMRS pattern used when sending data from one or a group of multi-slot DMRS patterns; if the third indication message is not a preset value, the UE ignores the one or a group of multi-slot DMRS patterns indicated by the first indication information.

[0538] In another possible implementation manner, the first indication information is sent through Media Access Control Element MAC CE signaling.

[0539] In another possible implementation, the first indication information indicates a multi-slot DMRS pattern, and the UE uses the multi-slot DMRS pattern to send DMRS when sending data in multiple time slots.

[0540] In another possible implementation, the first indication information indicates a group of multi-slot DMRS patterns, and the first indication information is also used by the UE to obtain the number of consecutive time slots occupied by the UE's uplink transmission, and determine the DMRS pattern used when sending data from a group of multi-slot DMRS patterns based on the number of consecutive time slots.

[0541] In another possible implementation manner, the first indication information is carried by a system information block SIB.

[0542] In another possible implementation, the first indication information indicates a plurality of candidate DMRS patterns, and the first indication information is used to determine a DMRS pattern to be used when sending data from the plurality of candidate DMRS patterns according to the terminal capability of the UE.

[0543] In another possible implementation, the first indication information indicates multiple alternative DMRS patterns, and the first indication information is also used by the UE to obtain the number of consecutive time slots occupied by the UE's uplink transmission, and determine the DMRS pattern used when sending data from multiple alternative DMRS patterns based on the number of consecutive time slots.

[0544] In another possible implementation, the DMRS pattern indicating device 2300 may further include:

[0545] The third signaling sending unit is used to send UE-specific terminal dedicated signaling to the UE, wherein the UE dedicated signaling includes second indication information. If the second indication message is a preset value, the UE parses the first indication information carried by the SIB; if the second indication message is not a preset value, the UE ignores the first indication information carried by the SIB.

[0546] In another possible implementation manner, the second indication information is DCI information of UE-specific signaling or indication information carried by radio resource control RRC signaling.

[0547] In another possible implementation manner, the first indication information is sent through a random access response RAR.

[0548] It should be noted that the DMRS pattern indication device provided in the embodiment of the present application can achieve the above Figure 15 All the method steps implemented in the method embodiment can achieve the same technical effects, and the parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0549] In order to implement the above embodiment, the present application proposes another DMRS pattern indicating device.

[0550] Figure 24 This is a structural diagram of the DMRS pattern indication device provided in Example 23 of the present application.

[0551] like Figure 24 As shown, the DMRS pattern indication device 2400 is applied to a network device and includes: an acquisition unit 2410 and a determination unit 2420.

[0552] The acquiring unit 2410 is configured to acquire the transmission parameters of the UE;

[0553] The determining unit 2420 is configured to determine, according to the transmission parameters, a multi-slot DMRS pattern to be used when the UE sends data in multiple time slots.

[0554] In a possible implementation, the transmission parameter is a time domain transmission duration, and the determining unit 2420 may be further configured to:

[0555] The multi-slot DMRS pattern used when sending data on multiple time slots is determined according to the number of consecutive time slots occupied by the UE.

[0556] In another possible implementation, the determining unit 2420 may also be configured to:

[0557] Determine the DMRS pattern corresponding to the MCS index according to the modulation and coding strategy MCS index carried in the UL grant for scheduling uplink data channel transmission;

[0558] The DMRS pattern corresponding to the MCS index is used as the multi-slot DMRS pattern used when sending data on multiple time slots.

[0559] In another possible implementation, for the physical uplink shared channel PUSCH, whether to adopt the multi-slot DMRS pattern is determined by one or more of the following flags: a multi-slot DMRS on flag; a repeated transmission on flag; or a multi-slot TB processing on flag.

[0560] In another possible implementation, for the physical uplink control channel PUCCH, the multi-slot DMRS pattern used when sending the uplink control channel PUCCH on multiple time slots is determined by one or more of the following: PRI carried in DCI; a combination of code rate and repetition transmission information.

[0561] It should be noted that the DMRS pattern indication device provided in the embodiment of the present application can achieve the above Figure 16 All the method steps implemented in the method embodiment can achieve the same technical effects, and the parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0562] It should be noted that the division of units in the embodiments of the present application is schematic and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0563] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0564] In order to implement the above embodiments, the present application also proposes a processor-readable storage medium.

[0565] The processor-readable storage medium stores a computer program for causing the processor to execute the present application. Figures 1 to 12 The DMRS pattern indication method described in the embodiment, or executing the present application Figure 13 and Figure 14 The DMRS pattern indication method described in the embodiment, or executing the present application Figure 15 The DMRS pattern indication method described in the embodiment is implemented in this application Figure 16 The DMRS pattern indication method described in the embodiment.

[0566] Among them, the processor-readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, tapes, magneto-optical disks (MO)), optical storage (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NANDFLASH), solid-state drives (SSDs)), etc.

[0567] In order to implement the above embodiments, the present application also proposes a computer program product.

[0568] The computer program product includes a computer program that, when executed by a processor, implements the present application. Figures 1 to 12 The method for indicating the DMRS pattern described in the embodiment, or the method for realizing the present application Figure 13 and Figure 14 The method for indicating the DMRS pattern described in the embodiment, or the method for realizing the present application Figure 15 The DMRS pattern indication method described in the embodiment realizes the present application Figure 16 The DMRS pattern indication method described in the embodiment.

[0569] Among them, the processor-readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, tapes, magneto-optical disks (MO)), optical storage (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NANDFLASH), solid-state drives (SSDs)), etc.

[0570] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) that contain computer-usable program code.

[0571] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the steps in the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0572] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor-readable memory produce an article of manufacture comprising an instruction device that implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0573] These processor-executable instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are performed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable device to implement the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0574] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. A method for indicating a demodulation reference signal (DMRS) pattern, characterized in that: Applied to user equipment UE, the method includes: receiving first indication information sent by the network device; Determining, according to the first indication information, a DMRS pattern to be used when sending data on a plurality of time slots; When the first indication information is carried by a reserved bit of downlink control information DCI or a system information block SIB, the first indication information indicates multiple candidate DMRS patterns; The determining, according to the first indication information, a DMRS pattern used when sending data on multiple time slots includes: Obtaining the number of consecutive time slots occupied by uplink transmission of the UE; Determining, according to the number of consecutive time slots, a DMRS pattern to be used when sending data from the multiple candidate DMRS patterns; The first indication information is sent through RRC signaling, media access control element MAC CE signaling, or random access response RAR, where the first indication information indicates a group of multi-slot DMRS patterns, wherein determining, according to the first indication information, a DMRS pattern to be used when sending data on multiple time slots includes: Obtaining the number of consecutive time slots occupied by uplink transmission of the UE; The DMRS pattern is determined from the group of multi-slot DMRS patterns according to the number of consecutive time slots.

2. The method according to claim 1, characterized in that The first indication information is carried by the reserved bit of the downlink control information DCI; the cyclic redundancy check CRC of the DCI is scrambled by one or more of the random access radio network temporary identifier RA-RNTI, the system information radio network temporary identifier SI-RNTI and the paging radio network temporary identifier P-RNTI.

3. The method according to claim 2, characterized in that The method further comprises: receiving UE-specific terminal-specific signaling sent by the network device, wherein the UE-specific signaling includes second indication information; If the second indication message is a preset value, parsing the reserved bits of the DCI; If the second indication message is not the preset value, the reserved bit in the DCI is ignored.

4. The method according to claim 3, characterized in that The second indication information is the DCI information of the UE-specific signaling or the indication information carried by the radio resource control RRC signaling.

5. The method according to claim 1, wherein Sending the first indication information through RRC signaling, the method further includes: receiving a DCI sent by the network device, wherein the DCI carries third indication information; If the third indication message is a preset value, determining a DMRS pattern to be used when sending data from the set of multi-slot DMRS patterns; If the third indication message is not the preset value, the set of multi-slot DMRS patterns indicated by the first indication information is ignored.

6. The method according to claim 1, wherein Carrying the first indication information by a system information block SIB, the method further includes: receiving UE-specific terminal dedicated signaling from the network device, wherein the UE dedicated signaling includes second indication information; If the second indication message is a preset value, parsing the first indication information carried by the SIB; If the second indication message is not the preset value, the first indication information carried by the SIB is ignored.

7. The method according to claim 6, characterized in that The second indication information is the DCI information of the UE-specific signaling or the indication information carried by the radio resource control RRC signaling.

8. A method for indicating a DMRS pattern, characterized in that: Applied to a UE, the method includes: Acquire a transmission parameter of the UE, where the transmission parameter is a time domain transmission duration; Determining, based on the transmission parameters, a multi-slot DMRS pattern to be used when sending data over multiple time slots; The determining, according to the transmission parameters, a multi-slot DMRS pattern used when sending data on multiple time slots includes: A multi-slot DMRS pattern used when sending data on multiple time slots is determined according to the number of consecutive time slots occupied by the UE.

9. The method according to claim 8, characterized in that The determining, according to the number of consecutive time slots occupied by the UE, a multi-slot DMRS pattern used when sending data on multiple time slots includes: If the number of consecutive time slots occupied by the UE is less than or equal to a preset threshold, determining a multi-slot DMRS pattern to be used when sending data according to the number of consecutive time slots occupied by the UE; If the number of consecutive time slots occupied by the UE is greater than the preset threshold, the multi-slot DMRS pattern used when sending data is determined according to the preset threshold.

10. The method according to claim 8, characterized in that The determining, according to the transmission parameters, a multi-slot DMRS pattern used when sending data on multiple time slots includes: Determining, according to a modulation and coding strategy (MCS) index carried in a UL grant for scheduling transmission of the uplink data channel, a DMRS pattern corresponding to the MCS index; The DMRS pattern corresponding to the MCS index is used as the multi-slot DMRS pattern used when sending data on multiple time slots.

11. The method according to claim 8, characterized in that For the physical uplink shared channel PUSCH, whether to adopt the multi-slot DMRS pattern is determined by one or more of the following flags: Multi-slot DMRS enable flag; Repeat transmission on flag; Multi-slot TB processing is enabled.

12. The method according to claim 8, characterized in that For the physical uplink control channel PUCCH, the multi-slot DMRS pattern used when transmitting the uplink control channel PUCCH in multiple time slots is determined by one or more of the following: PRI carried in the DCI; The combination of code rate and repetition of transmission information.

13. A method for indicating a DMRS pattern, characterized in that: Applied to a network device, the method includes: Sending first indication information to the UE, where the first indication information is used to determine a DMRS pattern used when sending data in multiple time slots; Among them, when the first indication information is carried by the reserved bit of the downlink control information DCI or the system information block SIB, the first indication information indicates multiple alternative DMRS patterns; the multiple alternative DMRS patterns are used to determine the DMRS pattern used when sending data from the multiple alternative DMRS patterns based on the number of consecutive time slots occupied by the uplink transmission of the UE. The first indication information is sent through RRC signaling or media access control element MAC CE signaling or random access response RAR, where the first indication information indicates a group of multi-slot DMRS patterns, and the group of multi-slot DMRS patterns is used to determine the DMRS pattern used when sending data from the group of multi-slot DMRS patterns based on the number of consecutive time slots occupied by the uplink transmission of the UE.

14. The method according to claim 13, characterized in that Carrying the first indication information by using a reserved bit of downlink control information DCI; The cyclic redundancy check CRC of the DCI is scrambled by one or more of a random access radio network temporary identifier RA-RNTI, a system information radio network temporary identifier SI-RNTI and a paging radio network temporary identifier P-RNTI.

15. The method according to claim 14, characterized in that The method further comprises: Send UE-specific terminal-exclusive signaling to the UE, wherein the UE-specific signaling includes second indication information. If the second indication message is a preset value, the UE parses the reserved bits of the DCI; if the second indication message is not the preset value, the UE ignores the reserved bits in the DCI.

16. The method according to claim 15, characterized in that The second indication information is the DCI information of the UE-specific signaling or the indication information carried by the radio resource control RRC signaling.

17. The method according to claim 13, wherein Sending the first indication information through RRC signaling, the method further includes: Sending DCI to the UE, wherein the DCI includes third indication information, and if the third indication message is a preset value, the UE determines the DMRS pattern to be used when sending data from the one or a group of multi-slot DMRS patterns; if the third indication message is not the preset value, the UE ignores the one or a group of multi-slot DMRS patterns indicated by the first indication information.

18. The method according to claim 13, characterized in that Carrying the first indication information by a system information block SIB, the method further includes: Send UE-specific terminal dedicated signaling to the UE, wherein the UE dedicated signaling includes second indication information, if the second indication message is a preset value, the UE parses the first indication information carried by the SIB; if the second indication message is not the preset value, the UE ignores the first indication information carried by the SIB.

19. The method according to claim 18, characterized in that The second indication information is the DCI information of the UE-specific signaling or the indication information carried by the radio resource control RRC signaling.

20. A method for indicating a DMRS pattern, characterized in that: Applied to a network device, the method includes: Obtaining transmission parameters of the UE; Determining, according to the transmission parameters, a multi-slot DMRS pattern to be used when the UE sends data in multiple time slots; The transmission parameter is a time domain transmission duration, and determining, according to the transmission parameter, a multi-slot DMRS pattern used when the UE sends data in multiple time slots, includes: A multi-slot DMRS pattern used when sending data on multiple time slots is determined according to the number of consecutive time slots occupied by the UE.

21. The method according to claim 20, characterized in that The determining, according to the transmission parameter, a multi-slot DMRS pattern used when the UE sends data in multiple time slots, includes: Determining, according to a modulation and coding strategy (MCS) index carried in a UL grant for scheduling transmission of the uplink data channel, a DMRS pattern corresponding to the MCS index; The DMRS pattern corresponding to the MCS index is used as the multi-slot DMRS pattern used when sending data on multiple time slots.

22. The method according to claim 20, characterized in that For the physical uplink shared channel PUSCH, whether to adopt the multi-slot DMRS pattern is determined by one or more of the following flags: Multi-slot DMRS enable flag; Repeat transmission on flag; Multi-slot TB processing is enabled.

23. The method according to claim 20, characterized in that For the physical uplink control channel PUCCH, the multi-slot DMRS pattern used when transmitting the uplink control channel PUCCH in multiple time slots is determined by one or more of the following: PRI carried in the DCI; The combination of code rate and repetition of transmission information.

24. A DMRS pattern indicating device, characterized in that: Applied to UE, including memory, transceiver, and processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: receiving first indication information sent by the network device; Determining, according to the first indication information, a DMRS pattern to be used when sending data on a plurality of time slots; When the first indication information is carried by a reserved bit of downlink control information DCI or a system information block SIB, the first indication information indicates multiple candidate DMRS patterns; The determining, according to the first indication information, a DMRS pattern used when sending data on multiple time slots includes: Obtaining the number of consecutive time slots occupied by uplink transmission of the UE; Determining, according to the number of consecutive time slots, a DMRS pattern to be used when sending data from the multiple candidate DMRS patterns; The first indication information is sent through RRC signaling, media access control element MAC CE signaling, or random access response RAR, where the first indication information indicates a group of multi-slot DMRS patterns, wherein determining, according to the first indication information, a DMRS pattern to be used when sending data on multiple time slots includes: Obtaining the number of consecutive time slots occupied by uplink transmission of the UE; The DMRS pattern is determined from the group of multi-slot DMRS patterns according to the number of consecutive time slots.

25. A DMRS pattern indicating device, characterized in that: Applied to UE, including memory, transceiver, and processor: a memory for storing computer programs; a transceiver for transmitting and receiving data under the control of the processor; A processor is configured to read the computer program in the memory and perform the following operations: Obtaining transmission parameters of the UE; Determining, based on the transmission parameters, a multi-slot DMRS pattern to be used when sending data over multiple time slots; The transmission parameter is a time domain transmission duration, and determining a multi-slot DMRS pattern used when sending data in multiple time slots according to the transmission parameter includes: A multi-slot DMRS pattern used when sending data on multiple time slots is determined according to the number of consecutive time slots occupied by the UE.

26. A DMRS pattern indicating device, characterized in that: Applied to network equipment, including memory, transceivers, and processors: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Sending first indication information to the UE, where the first indication information is used to determine a DMRS pattern used when sending data in multiple time slots; Among them, when the first indication information is carried by the reserved bit of the downlink control information DCI or the system information block SIB, the first indication information indicates multiple alternative DMRS patterns; the multiple alternative DMRS patterns are used to determine the DMRS pattern used when sending data from the multiple alternative DMRS patterns based on the number of consecutive time slots occupied by the uplink transmission of the UE. The first indication information is sent through RRC signaling or media access control element MAC CE signaling or random access response RAR, where the first indication information indicates a group of multi-slot DMRS patterns, and the group of multi-slot DMRS patterns is used to determine the DMRS pattern used when sending data from the group of multi-slot DMRS patterns based on the number of consecutive time slots occupied by the uplink transmission of the UE.

27. A DMRS pattern indicating device, characterized in that: Applied to network equipment, including memory, transceivers, and processors: a memory for storing computer programs; a transceiver for transmitting and receiving data under the control of the processor; A processor is configured to read the computer program in the memory and perform the following operations: Obtaining transmission parameters of the UE; Determining, according to the transmission parameters, a multi-slot DMRS pattern to be used when the UE sends data in multiple time slots; The transmission parameter is a time domain transmission duration, and determining, according to the transmission parameter, a multi-slot DMRS pattern used when the UE sends data in multiple time slots, includes: A multi-slot DMRS pattern used when sending data on multiple time slots is determined according to the number of consecutive time slots occupied by the UE.

28. A DMRS pattern indicating device, characterized in that: Applied to UE, including: A receiving unit, configured to receive first indication information sent by a network device; a determining unit, configured to determine, according to the first indication information, a DMRS pattern to be used when sending data on a plurality of time slots; When the first indication information is carried by a reserved bit of downlink control information DCI or a system information block SIB, the first indication information indicates multiple candidate DMRS patterns; The determined unit is specifically used for: Obtaining the number of consecutive time slots occupied by uplink transmission of the UE; Determining, according to the number of consecutive time slots, a DMRS pattern to be used when sending data from the multiple candidate DMRS patterns; The first indication information is sent through RRC signaling, media access control element MAC CE signaling, or random access response RAR, where the first indication information indicates a group of multi-slot DMRS patterns, wherein the determining unit is specifically configured to: Obtaining the number of consecutive time slots occupied by uplink transmission of the UE; The DMRS pattern is determined from the group of multi-slot DMRS patterns according to the number of consecutive time slots.

29. A DMRS pattern indicating device, characterized in that: Applied to UE, including: an acquiring unit, configured to acquire a transmission parameter of the UE; a determining unit, configured to determine, based on the transmission parameters, a multi-slot DMRS pattern to be used when sending data on multiple time slots; The transmission parameter is a time domain transmission duration, and the determining unit is specifically configured to: A multi-slot DMRS pattern used when sending data on multiple time slots is determined according to the number of consecutive time slots occupied by the UE.

30. A DMRS pattern indicating device, characterized in that: Applicable to network equipment, including: a sending unit, configured to send first indication information to the UE, wherein the first indication information is used to determine a DMRS pattern used when sending data on multiple time slots; Among them, when the first indication information is carried by the reserved bit of the downlink control information DCI or the system information block SIB, the first indication information indicates multiple alternative DMRS patterns; the multiple alternative DMRS patterns are used to determine the DMRS pattern used when sending data from the multiple alternative DMRS patterns based on the number of consecutive time slots occupied by the uplink transmission of the UE. The first indication information is sent through RRC signaling or media access control element MAC CE signaling or random access response RAR, where the first indication information indicates a group of multi-slot DMRS patterns, and the group of multi-slot DMRS patterns is used to determine the DMRS pattern used when sending data from the group of multi-slot DMRS patterns based on the number of consecutive time slots occupied by the uplink transmission of the UE.

31. A DMRS pattern indicating device, characterized in that: Applicable to network equipment, including: an acquiring unit, configured to acquire a transmission parameter of the UE; a determining unit, configured to determine, according to the transmission parameter, a multi-slot DMRS pattern to be used when the UE sends data in multiple time slots; The transmission parameter is a time domain transmission duration, and the determining unit is specifically configured to: A multi-slot DMRS pattern used when sending data on multiple time slots is determined according to the number of consecutive time slots occupied by the UE.

32. A processor-readable storage medium, characterized in that: The processor-readable storage medium stores a computer program, which is used to cause the processor to execute the method according to any one of claims 1 to 7, or the method according to any one of claims 8 to 12, or the method according to any one of claims 13 to 19, or the method according to any one of claims 20 to 23.

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