WO2021207958A1 - Reference signal processing method and apparatus, and readable storage medium - Google Patents

Abstract

Embodiments of the present application provide a reference signal processing method and apparatus, and a readable storage medium. The method comprises: determining N DMRS patterns that are not completely the same; and processing OFDM symbols of N time slots according to the N DMRS patterns that are not completely the same, wherein the N DMRS patterns correspond to the transmission of the same TB in the N time slots. In the embodiments of the present application, in a coverage enhancement mode, multiple time slots for repeated transmission use DMRS patterns of which time domain structures are not completely the same to reduce the distances between the OFDM symbols in at least some of the time slots and DMRSs, thereby improving the demodulation performance.

Description

Reference signal processing method, device and readable storage medium Technical field

This application relates to the field of communication technology, and in particular to a reference signal processing method, device, and readable storage medium.

Background technique

With the rapid development of mobile communication technology, people's communication needs continue to increase, and coverage enhancement technologies are also emerging. In the prior art, coverage enhancement is usually achieved by repeated transmission, that is, multiple time slots (slots) are used to repeatedly transmit data to enhance coverage. Among them, the specific control parameters of the repeated transmission process can be determined by the high-level configuration. For example, the number of timeslots for repeated transmission can be determined by the high layer configuration, and the time domain structure of the demodulation reference signal (DMRS) for repeated transmission can be configured by the high layer.

At present, in each time slot of repeated transmission, the DMRS of the physical uplink shared channel (PUSCH) or the physical downlink shared channel (PDSCH) is mapped to a preamble DMRS. The DMRS is used for data demodulation, which leads to poor demodulation performance of Orthogonal Frequency Division Multiplexing (OFDM) symbols far away from the pre-DMRS.

Summary of the invention

The embodiments of the present application provide a reference signal processing method, device, and readable storage medium, so as to improve the demodulation performance of the device.

In the first aspect, an embodiment of the present application provides a reference signal processing method, including:

Determining N demodulation reference signal DMRS patterns, where the N DMRS patterns are not completely the same, and N is a positive integer greater than 1;

The OFDM symbols of the N time slots are processed according to the N DMRS patterns, where the N DMRS patterns correspond to transmission of the same transport block TB in the N time slots.

In the second aspect, an embodiment of the present application provides a reference signal processing device, including:

The processing module is configured to determine N demodulation reference signal DMRS patterns, where the N DMRS patterns are not completely the same, and N is a positive integer greater than 1; Orthogonal frequency division multiplexing OFDM symbols are processed, wherein the N DMRS patterns correspond to the transmission of the same transmission block TB in the N time slots.

In a third aspect, an embodiment of the present application provides an electronic device, including:

Processor, memory, and interface for communication with network equipment;

The memory stores computer execution instructions;

The processor executes the computer-executable instructions stored in the memory, so that the processor executes the method according to any one of the first aspect.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium that stores a computer-executable instruction, and when the computer-executable instruction is executed by a processor, it is used to implement any one of the first aspect. The method described in the item.

In a fifth aspect, an embodiment of the present application provides a computer program product, including: program instructions, which are used to implement the method described in any one of the first aspects above.

In a sixth aspect, an embodiment of the present application provides a program, when the program is executed by a processor, it is used to execute the method described in any one of the first aspects above.

In a seventh aspect, an embodiment of the present application may further provide a chip, including a processing module and a communication interface, and the processing module can execute the method described in any one of the above first aspect.

Further, the chip also includes a storage module (such as a memory), the storage module is used to store instructions, the processing module is used to execute the instructions stored in the storage module, and the execution of the instructions stored in the storage module causes the chip to execute the first The method of any one of aspects.

The embodiments of the present application provide a reference signal processing method, device, and readable storage medium, wherein the method determines N DMRS patterns that are not exactly the same, and compares N time slots based on the N DMRS patterns that are not exactly the same. OFDM symbols are processed, and N DMRS patterns correspond to the transmission of the same TB in N time slots. In the embodiment of the present application, in the coverage enhancement mode, multiple time slots repeatedly transmitted adopt DMRS patterns with different time domain structures to reduce the distance between OFDM symbols and DMRS in at least part of the time slots. Thereby improving the demodulation performance.

Description of the drawings

FIG. 1 is a schematic diagram of the PUSCH structure of repeated transmission provided by an embodiment of the application;

2 is a schematic diagram of an application scenario of a reference signal processing method provided by an embodiment of this application;

FIG. 3 is a flowchart of a reference signal processing method provided by an embodiment of this application;

4 is a schematic diagram 1 of the PUSCH structure for repeated transmission provided by an embodiment of the application;

FIG. 5 is a second schematic diagram of a PUSCH structure for repeated transmission provided by another embodiment of this application;

FIG. 6 is a flowchart of a reference signal processing method provided by another embodiment of this application;

FIG. 7 is a flowchart of a reference signal processing method provided by another embodiment of this application;

FIG. 8 is a flowchart of a reference signal processing method provided by another embodiment of this application;

FIG. 9 is a flowchart of a reference signal processing method provided by another embodiment of this application;

FIG. 10 is a schematic structural diagram of a reference signal processing apparatus provided by an embodiment of this application;

FIG. 11 is a schematic structural diagram of an electronic device provided by an embodiment of the application.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of this application.

The terms “first”, “second”, etc. in the description, claims, and the above-mentioned drawings of the embodiments of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. In addition, the terms "including" and "having" and any variations of them are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those clearly listed. Those steps or units may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or equipment.

In the fifth generation mobile communication technology (5G) and other communication systems, such as the LTE system, PUSCH and PDSCH are inserted into DMRS in units of time slots. DMRS is a signal given in advance by both parties, with fixed time-frequency characteristics, and pre-configured with a given sequence. The DMRS structure can be referred to as shown in FIG. 1. In FIG. 1, port 0 represents a port of the DMRS, and the receiver device can demodulate the data carried by the payload (payload) in the time slot through the DMRS.

In 5G NR, in each time slot, the DMRS of PUSCH or PDSCH is mapped to at least one pre-DMRS for data demodulation. Exemplarily, PUSCH mapping pattern type A (mapping type A) and pattern type B (mapping type B) may refer to Table 1 below:

Table 1

In Table 1 above, l _d represents the number of OFDM symbols occupied by the PUSCH in the time domain. l may have several values, among which l ₀ is always the first OFDM symbol in the PUSCH area, that is, the time domain position of the pre-DMRS. The actual value is zero, which means the first OFDM symbol in the time domain of the PUSCH area. The other items in Table 1 are the time domain positions of the additional reference signals. For example, "l ₀ ,7,11" means that two DMRS symbols are added, respectively on the 7th OFDM symbol and the 11th OFDM symbol.

In the communication system, the above "pos x" parameter selection can be obtained through the configuration of the high-level RRC. For example, by "dmrs-AdditionalPosition{pos0, pos1, pos3}".

In addition, if dmrs-AdditionalPosition is not filled in, the default value "pos2" is used.

At present, when repetitive transmission realizes enhanced coverage, each time slot in repetitive transmission adopts the same demodulation reference signal symbol position. When the PUSCH or PDSCH configuration is only one pre-DMRS, the demodulation performance of the OFDM symbols farther from the pre-DMRS in the repeatedly transmitted time slot is poor. Therefore, an embodiment of the present application provides a reference signal processing method to improve demodulation performance.

The core idea of the reference signal processing method provided in this application is that in the enhanced control channel mode, that is, in the enhanced coverage mode, multiple time slots of repeated transmission adopt demodulation reference signal patterns with incomplete time-domain structures. Reduce the distance between OFDM symbols and DMRS in some time slots, thereby improving demodulation performance.

The following briefly introduces the implementation environment involved in the embodiments of the present application.

The technical solutions of the embodiments of this application can be applied to various communication systems, such as: GSM (Global System of Mobile communication) system, CDMA (Code Division Multiple Access, code division multiple access) system, WCDMA (Wideband Code Division) Multiple Access (Wideband Code Division Multiple Access) system, GPRS (General Packet Radio Service), LTE (Long Term Evolution) system, LTE FDD (Frequency Division Duplex) system, LTE TDD (Time Division Duplex) system, LTE-A (Advanced long term evolution) system, NR (New Radio) system, NR system evolution system, LTE-U (LTE- Based Access To Unlicensed Spectrum, LTE on the unlicensed frequency band system, NR-U (NR-Based Access To Unlicensed Spectrum, NR on the unlicensed frequency band) system, UMTS (Universal Mobile Telecommunication System), WiMAX (Worldwide Interoperability for Microwave Access) communication systems, WLAN (Wireless Local Area Networks, wireless local area networks), WiFi (Wireless Fidelity), next-generation communication systems or other communication systems, etc.

Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication, but will also support, for example, D2D (Device to Device). Equipment) communication, M2M (Machine to Machine, machine-to-machine) communication, MTC (Machine Type Communication), V2V (Vehicle to Vehicle, inter-vehicle) communication, and V2X (Vehicle to Everything, Internet of Vehicles) systems, etc. The embodiments of the present application can also be applied to these communication systems.

The system architecture and business scenarios described in the embodiments of this application are intended to more clearly illustrate the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. Those of ordinary skill in the art will know that with the network With the evolution of architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are equally applicable to similar technical problems.

Exemplarily, the communication system 100 applied in the embodiment of the present application is shown in FIG. 2. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or called a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminals located in the coverage area. Optionally, the network device 110 may be an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or a radio controller in CRAN (Cloud Radio Access Network, cloud radio access network), or the The network equipment can be a mobile switching center, a relay station, an access point, a hub, a switch, a bridge, a router, a network side equipment in a 5G network, or a network equipment in a future communication system, etc.

The communication system 100 also includes at least one terminal device 120 located within the coverage area of the network device 110. The "terminal" used here includes, but is not limited to, connection via wired lines, such as PSTN (Public Switched Telephone Networks), DSL (Digital Subscriber Line), digital cable, and direct cable connection; And/or another data connection/network; and/or via a wireless interface, such as for cellular networks, WLAN (Wireless Local Area Network, wireless local area network), digital TV networks such as DVB-H networks, satellite networks, AM-FM Broadcast transmitter; and/or another terminal's device configured to receive/send communication signals; and/or IoT (Internet of Things, Internet of Things) equipment. A terminal set to communicate through a wireless interface may be referred to as a "wireless communication terminal", a "wireless terminal" or a "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular phones; PCS (Personal Communications System) terminals that can combine cellular radio phones with data processing, fax, and data communication capabilities; can include radio phones, pagers, Internet/intranet PDA with Internet access, web browser, memo pad, calendar, and/or GPS (Global Positioning System) receiver; and conventional laptop and/or palm-type receivers or others including radio telephone transceivers Electronic device. Terminal equipment can refer to access terminal, UE (User Equipment), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile equipment, user terminal, terminal, wireless communication equipment, user agent or User device. The access terminal can be a cellular phone, a cordless phone, SIP (Session Initiation Protocol) phone, WLL (Wireless Local Loop, wireless local loop) station, PDA (Personal Digital Assistant, personal digital processing), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminals in 5G networks, or terminals in the future evolution of PLMN, etc.

Optionally, the 5G communication system or 5G network may also be referred to as an NR system or NR network.

Figure 2 exemplarily shows a network device and a terminal device. In some cases, the network device may be the sender device, and the terminal device may be the receiver device; in other cases, the terminal device may be the sender device, and the network device may be the receiver device.

It should be understood that the devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices. Taking the communication system 100 shown in FIG. 2 as an example, the communication device may include a network device 110 having a communication function and a terminal device 120. The network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here. The communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities and other network entities, which are not limited in the embodiment of the present application.

In the following, several specific embodiments are used to introduce in detail how to apply for improving the demodulation performance.

Example one

FIG. 3 is a flowchart of a reference signal processing method provided by an embodiment of the application. The method in this embodiment can be used for the sender's device, and can also be used for the receiver's device. As shown in Figure 3, the method of this embodiment includes:

S101. Determine N DMRS patterns, where the N DMRS patterns are not completely the same.

In this solution, N is a positive integer greater than 1, that is to say, in this solution, the N DMRS patterns determined by the device may include a variety of different DMRS patterns. For example, referring to FIG. 4 and FIG. 5, repeat transmission A schematic diagram of the PUSCH structure including 3 time slots. In the case shown in Figure 4, the first time slot and the second time slot correspond to the same DMRS pattern, and the third time slot corresponds to a DMRS; in Figure 5 In the case shown, the first time slot and the third time slot correspond to the same DMRS pattern, and the second time slot corresponds to one DMRS; of course, the two DMRS patterns shown in Figure 4 and Figure 5 are only For example, in actual applications, the N DMRS patterns determined by the device may also include 3 DMRS patterns or 4 DMRS patterns, etc., and the position of the time domain symbol occupied by the DMRS can also be set according to the actual situation. Limited to those shown in Figure 4 and Figure 5.

In this solution, the specific implementation manner of determining N DMRS patterns that are not completely the same is not limited. As long as it can be ensured that the determined N DMRS patterns are not completely the same, it belongs to the protection category of this solution.

S102: Process the OFDM symbols of the N time slots according to the N DMRS patterns.

In this solution, N time slots are for the transmission of the same transport block TB, that is, N time slots are time slots included in one cycle of repeated transmission, and the TBs corresponding to the N time slots are the same. . The repeated transmission including N time slots may be uplink transmission or downlink transmission. Therefore, the OFDM symbols included in N time slots may be OFDM symbols included in PUSCH of N time slots, or N time slots include The OFDM symbol may also be an OFDM symbol included in the PDSCH of N time slots.

Correspondingly, processing the OFDM symbols of the N slots can be mapping and modulation, or de-mapping and demodulation.

Exemplarily, for the sender device, the sender device can map and modulate the N DMRS patterns determined in step S101 to generate a PUSCH of N time slots or a PDSCH of N time slots; accordingly, for the receiver For the device, the receiver device can also determine N DMRS patterns through the reference signal processing method provided in the embodiments of the present application, and compare the received N timeslots of PUSCH or N timeslots of PDSCH according to the determined N DMRS patterns. Demapping and demodulation are performed to obtain the received data carried by the PUSCH of the N time slots or the data carried by the N PDCSH.

It should be noted that when the receiver device and the sender device determine the N DMRS patterns, they can simultaneously determine the time slot corresponding to each DMRS pattern in the N DMRS patterns.

In this embodiment, by determining N not exactly the same DMRS patterns, and processing the OFDM symbols of the N time slots according to the N not exactly the same DMRS patterns, and the N DMRS patterns correspond to the same TB in the N time slots In the transmission. In this embodiment, in the coverage enhancement mode, multiple time slots repeatedly transmitted adopt DMRS patterns with different time domain structures to reduce the distance between OFDM symbols and DMRS in at least part of the time slots, thereby Improve demodulation performance.

The following describes in detail how the device determines the specific implementation of N different DMRS patterns.

Example two

FIG. 6 is a flowchart of a reference signal processing method provided by another embodiment of this application. Referring to FIG. 6, the method of this embodiment includes:

S201. Determine N DMRS patterns according to the high-level configuration, where the N DMRS patterns are not completely the same.

In this solution, the N DMRS patterns that the device can determine according to the high-level configuration may include multiple different DMRS patterns.

In some cases, the high-level configuration can specifically indicate the DMRS corresponding to each of the N time slots; for example, if the repeated transmission includes 4 time slots, combined with Table 1, the high-level configuration can be "pos 0, pos 0, pos 0, pos 1", that is to say, the high-level configuration indicates that among the above 4 time slots, time slot 0, time slot 1, and time slot 2 respectively correspond to the DMRS pattern corresponding to "pos 0", and time slot 3 adopts "pos 1" corresponds to the DMRS pattern.

In other cases, the high-level configuration can indicate the identity of the DMRS pattern corresponding to the N time slots, and the device can determine the identity of the DMRS pattern corresponding to each of the N time slots according to the identity, thereby determining the N DMRS patterns; Exemplarily, if the repeated transmission includes 4 time slots, combined with Table 1 above, if the high-level configuration indicates "pos 0, pos 1", the device can determine that time slot 0, time slot 1, and time slot 2 correspond to "pos 0". ”Corresponds to the DMRS pattern, and timeslot 3 “pos 1” corresponds to the DMRS pattern.

In other cases, the high-level configuration can indicate the DMRS patterns corresponding to some of the N time slots, and the DMRS patterns corresponding to other time slots in the N time slots are indicated by default, for example, N time slots The other time slots in the DMRS pattern correspond to the default DMRS pattern, or the other time slots in the N time slots can be determined according to the DMRS corresponding to some of the time slots indicated by the high-level configuration.

Exemplarily, if the repeated transmission includes 4 time slots, combined with Table 1 above, if the high-level configuration indicates "pos 1, 3", it means that time slot 3 corresponds to the DMRS pattern corresponding to "pos 1," time slot 0, time slot 1 and time slot 2 correspond to the DMRS pattern corresponding to "pos 0". In this example, the DMRS pattern corresponding to "pos 0" is the default DMRS pattern. Through the above-mentioned default method, the system overhead can be reduced and the system efficiency can be improved.

If the repeated transmission includes 12 time slots, combined with Table 1 above, if the high-level configuration indicates "pos 0, pos 0, pos 0, pos 1", it means that slot 0, slot 1 and slot 2 correspond to "pos 0" respectively For the corresponding DMRS pattern, time slot 3 corresponds to the DMRS pattern corresponding to "pos 1", and the DMRS pattern corresponding to 4 time slots is repeated in the repeated transmission time slot. Then it can be determined that time slot 4, time slot 5, and time slot 6 respectively correspond to the DMRS pattern corresponding to "pos 0", time slot 7 corresponds to the DMRS pattern corresponding to "pos 1", and time slot 8, time slot 9 and time slot 10 respectively It corresponds to the DMRS pattern corresponding to "pos 0", and the time slot 11 corresponds to the DMRS pattern corresponding to "pos 1." By configuring the DMRS patterns corresponding to some time slots as described above, the system overhead can be reduced and the system efficiency can be improved.

The specific implementation manners of the above-mentioned several high-level configurations are only exemplary. Of course, other manners may also be adopted in practical applications.

It should be noted that when determining N DMRS patterns, the time slot corresponding to each DMRS pattern can be determined at the same time.

It should be noted that the DMRS pattern may also be other names such as pilot pattern, reference signal pattern, first pattern, etc., which are not limited in the embodiment of the present application.

S202: Process the OFDM symbols of the N time slots according to the N DMRS patterns.

Step S202 in this embodiment is similar to S102 in the embodiment shown in FIG. 3, and reference may be made to the detailed description of the embodiment shown in FIG. 3, which will not be repeated here.

In this embodiment, N different DMRS patterns are determined through high-level configuration, and the OFDM symbols of N time slots are processed according to the N different DMRS patterns, and the N DMRS patterns correspond to the same TB in N Transmission in time slot. In this embodiment, in the coverage enhancement mode, multiple time slots repeatedly transmitted adopt DMRS patterns with different time domain structures to reduce the distance between OFDM symbols and DMRS in at least part of the time slots, thereby Improve demodulation performance.

Example three

FIG. 7 is a flowchart of a reference signal processing method provided by another embodiment of this application. Referring to FIG. 7, the method of this embodiment includes:

S301: Determine the first DMRS pattern according to the high-level configuration.

S302. Determine other N-1 DMRS patterns according to the first DMRS pattern.

A possible implementation is to determine the first DMRS pattern through radio resource control (Radio Resource Control, RRC) signaling. For example, the RRC signaling may include the identifier of the first DMRS pattern, and the device can determine the first DMRS pattern according to the The identification of a DMRS pattern determines the first DMRS pattern.

Then, according to the association relationship between the first DMRS pattern and other N-1 DMRS patterns, other N-1 DMRS patterns are determined. It should be noted that the other N-1 DMRS patterns may include the same DMRS pattern as the first DMRS pattern, and DMRS patterns different from the first DMRS pattern, and the DMRS patterns different from the first DMRS pattern may be multiple Or, the other N-1 DMRS patterns may only include DMRS patterns that are different from the first DMRS pattern.

The following describes in detail how to determine the specific implementation of the other N-1 DMRS patterns according to the association relationship between the first DMRS pattern and the other N-1 DMRS patterns:

A possible implementation manner. The other N-1 DMRS patterns are determined according to the first DMRS pattern and a preset offset value. The preset offset value is used to indicate the time when the DMRS configured by the other N-1 DMRS patterns are occupied. The position of the domain symbol. The "preset offset value" here can be used to indicate "pos x" in Table 1. For example, if the identifier corresponding to the first DMRS pattern is "pos 0" and the preset offset value is 1, then According to the other N-1 DMRS patterns, "pos 0+1", that is, the DMRS pattern corresponding to "pos 1" is included.

In addition, if the sending device and the receiving device negotiate in advance to use several different DMRS patterns and which DMRS pattern is used for which time slot in the repeated transmission and other configurations, the device can use the pre-negotiated configuration and the first DMRS pattern. And the first DMRS pattern and the preset offset value, determine N DMRS patterns that are not exactly the same, and determine the DMRS patterns corresponding to the N time slots.

For example, the DMRS pattern can correspond to the configuration mode of pattern type A in Table 1. Accordingly, the device first determines the first DMRS pattern according to RRC signaling, where the first DMRS pattern corresponds to "pos 0"; The "pos 0" corresponding to a DMRS pattern, the preset offset value 1, and the preset offset value 2 determine that the second DMRS pattern corresponds to "pos 1" and the third DMRS pattern "pos 2"; and according to the pre-negotiated configuration , The first DMRS pattern, the second DMRS pattern, and the third DMRS pattern, determine N incomplete DMRS patterns, and determine which of the N timeslots are respectively used for the N incomplete DMRS patterns.

Exemplarily, if the repeated transmission includes 4 time slots, combined with Table 1, if the high-level configuration indicates "pos 0", it is determined that the DMRS pattern corresponding to "pos 0" is the first DMRS pattern, and the first DMRS pattern corresponds to Time slot 0, time slot 1, and time slot 2. Then, according to the first DMRS pattern and the preset offset value 1, it is determined that the second DMRS pattern is the DMRS pattern corresponding to "pos 1", and the "pos 1" corresponds to The DMRS pattern is the DMRS pattern corresponding to time slot 3.

In another possible implementation manner, the other N-1 DMRS patterns are determined according to the first DMRS pattern and a preset correspondence relationship, where the preset correspondence relationship is the relationship between the first DMRS pattern and the other N-1 DMRS patterns Correspondence. The embodiment of the present application does not limit the data structure of the preset correspondence relationship. For example, the preset correspondence relationship may be stored in the form of a list. Optionally, the preset correspondence may also include the length of the repeatedly transmitted PUSCH or PDSCH, that is, the preset correspondence is the length of the repeatedly transmitted PUSCH or PDSCH and the first DMRS pattern and other N-1 DMRS patterns Correspondence between.

In addition, if the sending device and the receiving device have negotiated in advance the above-mentioned preset correspondence and which DMRS pattern is used for which time slot in the repeated transmission and other configurations, the device can according to the pre-negotiated configuration, the first DMRS pattern, and the first DMRS pattern. A DMRS pattern and a preset corresponding relationship are determined, N different DMRS patterns are determined, and the DMRS patterns corresponding to the N time slots are determined.

For example, the DMRS pattern can correspond to the configuration mode of pattern type A in Table 1. Accordingly, the device first determines the first DMRS pattern according to RRC signaling, where the first DMRS pattern corresponds to "pos 0"; "Pos 0" corresponding to a DMRS pattern and the preset correspondence {pos0, pos1, pos3}, determine that the second DMRS pattern is the DMRS pattern corresponding to "pos 1" and the third DMRS pattern is the DMRS corresponding to "pos 3" Patterns; and according to the pre-negotiated configuration, the first DMRS pattern, the second DMRS pattern, and the third DMRS pattern, determine N DMRS patterns that are not exactly the same, and determine that N DMRS patterns that are not exactly the same are used for N respectively Which time slot in the time slot.

Exemplarily, if the repeated transmission includes 4 time slots, combined with Table 1, if the high-level configuration indicates "pos 0", it is determined that the DMRS pattern corresponding to "pos 0" is the first DMRS pattern, and the first DMRS pattern corresponds to Time slot 0, time slot 1, and time slot 2. Then, according to the first DMRS pattern and the preset correspondence {pos0, pos1}, it is determined that the second DMRS pattern is the DMRS pattern corresponding to "pos 1", and the "pos 1" The corresponding DMRS pattern is the DMRS pattern corresponding to time slot 3.

In another possible implementation manner, the other N-1 DMRS patterns are determined according to the additional DMRS and the first DMRS pattern.

A possible implementation manner is to insert an additional additional DMRS into the first DMRS pattern, so as to obtain a DMRS pattern that is different from the first DMRS pattern among the other N-1 DMRS patterns. It should be noted that the N-1 DMRS patterns may include the same DMRS pattern as the first DMRS pattern. Therefore, the number of DMRS patterns that need to insert additional DMRS is less than or equal to N-1.

In another possible implementation, if the first DMRS pattern includes the pre-DMRS pattern and the additional DMRS pattern, the additional DMRS in the first DMRS pattern can be replaced with the newly determined additional DMRS, thereby determining other N- A DMRS pattern that is different from the first DMRS pattern in one DMRS pattern. It should be noted that the newly determined pilot sequence corresponding to the additional DMRS is different from the pilot sequence corresponding to the additional DMRS included in the first DMRS pattern.

In practical applications, the sender device and the receiver device can pre-negotiate the relevant strategy for inserting additional additional DMRS in the first DMRS pattern. For example, the additional DMRS can be inserted in multiple pre-designated time domain symbols in a circular manner. DMRS, alternatively, additional DMRS can be inserted on the fixed time-domain symbol, or additional DMRS can be inserted on the time-domain symbol specified by the high-level configuration. The specific implementation of DMRS is not limited. In addition, the number of additional DMRS inserted may be one or multiple, which is not limited in the embodiment of the present application.

Exemplarily, the first DMRS pattern is the DMRS pattern indicated by "pos 0" in pattern type A in Table 1 above, and the other N-1 DMRS patterns may include inserting additional DMRS at the position of OFDM symbol 6 of the first DMRS pattern , The formed DMRS pattern, and the DMRS pattern formed by inserting additional DMRS at the positions of the OFDM symbol 6 and the OFDM symbol 9 of the first DMRS pattern, respectively.

S303: Process the OFDM symbols of the N time slots according to the N DMRS patterns.

Step S303 in this embodiment is similar to S102 in the embodiment shown in FIG. 3, and reference may be made to the detailed description of the embodiment shown in FIG. 3, which will not be repeated here.

In this embodiment, the first DMRS pattern included in the N different DMRS patterns is determined through high-level configuration, and the other N-1 DMRS patterns are determined according to the first DMRS pattern; The OFDM symbols of the timeslots are processed, and the N DMRS patterns correspond to the transmission of the same TB in the N timeslots. In this embodiment, in the coverage enhancement mode, multiple time slots repeatedly transmitted adopt DMRS patterns with different time domain structures to reduce the distance between OFDM symbols and DMRS in at least part of the time slots, thereby Improve demodulation performance.

In a specific embodiment, the N different DMRS patterns include 2 different DMRS patterns, and the 2 different DMRS patterns are a first DMRS pattern and a second DMRS pattern, respectively.

Example four

FIG. 8 is a flowchart of a reference signal processing method provided by another embodiment of this application. In this embodiment, the terminal device is the sender device and the network device is the receiver device as an example, and two different DMRS patterns are used for N time slots, namely, the first DMRS pattern and the second DMRS pattern as examples for detailed description . As shown in Figure 8, the method of this embodiment includes:

S401. The terminal device determines N DMRS patterns, where the N DMRS patterns are not completely the same.

In a possible implementation manner, the terminal device determines N DMRS patterns according to the high-level configuration. Specifically, the terminal device determines the first DMRS pattern and the second DMRS pattern according to the RRC signaling sent by the network device. According to the pre-negotiated configuration, it is determined which of the N time slots adopts the first DMRS pattern and which time slot adopts the second DMRS pattern, thereby determining N DMRS patterns that are not exactly the same, and determining that the N are not exactly the same The time slot in which the DMRS pattern is applied.

In another possible implementation manner, the terminal device determines the first DMRS pattern according to the high-level configuration, and determines Y second DMRS patterns according to the association relationship between the first DMRS pattern and the second DMRS pattern. And according to the pre-negotiated configuration, it is determined that the number of the first DMRS pattern is X and the number of the second DMRS pattern is Y, where the sum of X and Y is equal to N. It should be noted that the specific values of X and Y can be preset or instructed by the network device through high-level configuration. For example, X represents the first X time slots among N time slots, and Y is N time slots. Other time slots in the slot; or, X is the odd-numbered time slot among the N time slots, and Y is the even-numbered time slot among the N time slots.

According to the association relationship between the first DMRS pattern and the second DMRS pattern, determine Y second DMRS patterns. Illustratively, it can be implemented in any of the following ways: Determine according to the first DMRS pattern and the preset offset value Or, determine the second DMRS pattern according to the first DMRS pattern and the preset correspondence; or, determine the second DMRS pattern according to the position of the time domain symbol occupied by the additional DMRS and the first DMRS pattern.

S402: The terminal device generates a PUSCH of N time slots according to mapping and modulation of the N DMRS patterns.

Among them, the terminal device performs mapping and modulation according to N different DMRS patterns to generate PUSCHs of N time slots.

For example, if X represents the first X time slots in the N time slots, and Y is the other time slots in the N time slots; then the terminal device performs mapping and modulation according to the first DMRS pattern to generate the first X time slots PUSCH, the PUSCH of other Y time slots is generated according to the second DMRS pattern.

For example, if X is equal to N-1 and Y is equal to 1, then the first N-1 time slots of N time slots correspond to the first DMRS pattern, and the Nth time slot corresponds to the second DMRS pattern. The second DMRS pattern is different. For example, when the DMRS included in the first DMRS pattern is a pre-DMRS, and the second DMRS pattern includes a pre-DMRS and an additional DMRS, the receiver device uses two types of DMRS when performing channel estimation. Different DMRS patterns perform channel estimation. Therefore, the channel estimation results of the Nth time slot can be channel equalized according to the channel estimation results corresponding to the first X time slots to improve the channel estimation performance, thereby improving the demodulation performance. Or, during demodulation, joint demodulation is performed according to the demodulation results corresponding to the N time slots, thereby improving the demodulation performance.

If X is an odd number of timeslots among N timeslots, and Y is an even number of timeslots among N timeslots; the terminal device performs mapping and modulation according to the first DMRS pattern to generate PUSCHs for X odd numbered timeslots , According to the second DMRS pattern, generate other Y PUSCHs of even-numbered time slots.

For example, among the N time slots, the odd-numbered time slots and the even-numbered time slots correspond to different DMRS patterns. When the receiver device performs channel estimation, it can compare the results according to the channel estimation result of the previous time slot. The channel estimation result of the current time slot is used for channel equalization. Since two different DMRS patterns are used for channel estimation, the channel estimation performance can be improved, thereby improving the demodulation performance. Or, during demodulation, joint demodulation is performed according to the demodulation results corresponding to the N time slots, thereby improving the demodulation performance.

If in N time slots, the first M-1 time slots in every M time slots correspond to the first DMRS pattern, and the Mth time slot corresponds to the second DMRS pattern, where M is a positive value greater than 1. An integer, and N is an integer multiple of M.

For example, if the repeated transmission includes 10 time slots, the first 4 time slots of every 5 time slots correspond to the first DMRS pattern, and the fifth time slot corresponds to the second DMRS pattern, that is, time slots 0 to 3 correspond to For the first DMRS pattern, time slot 4 corresponds to the second DMRS pattern, time slot 5 to time slot 8 corresponds to the first DMRS pattern, and time slot 9 corresponds to the second DMRS pattern.

Among the N time slots, each M time slots correspond to different DMRS patterns in the order of looping. When the receiver device performs channel estimation, it can be based on the channel estimation for the previous time slot in each M time slots. As a result, channel equalization is performed on the channel estimation result of the current time slot. Since two different DMRS patterns are used for channel estimation, the channel estimation performance can be improved, thereby improving the demodulation performance. Or, during demodulation, joint demodulation is performed according to the demodulation results corresponding to each M time slots, thereby improving demodulation performance.

S403: The terminal device sends a PUSCH of N time slots to the network device. Correspondingly, the network device receives the PUSCH of N time slots sent by the terminal device.

Optionally, after S403, the following steps may be further included:

S404. The network device determines N DMRS patterns, where the N DMRS patterns are not completely the same.

The network device can determine N DMRS patterns that are not exactly the same. The way the network device determines the N DMRS patterns can refer to the description of the terminal device determining the N DMRS patterns, which will not be repeated here, and the N DMRS determined by the network device The pattern is the same as the N DMRS patterns determined by the terminal device in step S101.

S405. The network device demaps and demodulates the received PUSCH of the N time slots according to the N DMRS patterns, and obtains data carried by the PUSCH of the N time slots.

In this solution, the DMRS patterns adopted by the N time slots are not completely the same. The network equipment can jointly demodulate the data according to the N time slots, instead of demodulating the data according to the N identical time slots in the traditional way. The method in this solution enhances the demodulation performance of the coverage, while being able to adapt to different computational complexity requirements.

In this embodiment, the terminal device determines N different DMRS patterns and performs mapping and modulation according to the N different DMRS patterns to generate PUSC with N time slots; the terminal device sends N time slots to the network device. PUSCH. In this embodiment, in the coverage enhancement mode, multiple time slots repeatedly transmitted adopt demodulation reference signal patterns with different time domain structures to reduce the distance between OFDM symbols and DMRS in some time slots. Thereby improving the demodulation performance. In addition, the network equipment can jointly demodulate the PUSCH of the N time slots sent by the receiving terminal equipment by determining N not identical DMRS patterns, and obtain the data carried by the PUSCH of the N time slots, which can further adapt to different Computational complexity requirements.

Example five

FIG. 9 is a flowchart of a reference signal processing method provided by another embodiment of this application. In this embodiment, take the network device as the sender device and the terminal device as the receiver device as an example, and two different DMRS patterns are used for N time slots, namely, the first DMRS pattern and the second DMRS pattern as examples for detailed description. . As shown in FIG. 9, the method of this embodiment includes:

S501. The network device determines N DMRS patterns, where the N DMRS patterns are not completely the same.

Among them, in a possible implementation manner, the network device determines N DMRS patterns according to the high-level configuration. Specifically, the network device determines the first DMRS pattern and the second DMRS pattern according to the RRC signaling sent to the terminal device. According to the pre-negotiated configuration, it is determined which of the N time slots adopts the first DMRS pattern and which time slot adopts the second DMRS pattern, thereby determining N DMRS patterns that are not exactly the same, and determining that the N are not exactly the same The time slot in which the DMRS pattern is applied.

In another possible implementation manner, the network device determines the first DMRS pattern according to the high-level configuration, and determines Y second DMRS patterns according to the association relationship between the first DMRS pattern and the second DMRS pattern. And according to the pre-negotiated configuration, it is determined that the number of the first DMRS pattern is X and the number of the second DMRS pattern is Y, where the sum of X and Y is equal to N. It should be noted that the specific values of X and Y can be preset or determined by the network equipment according to the high-level configuration. For example, X represents the first X time slots among N time slots, and Y is N time slots. Other time slots in the slot; or, X is the odd-numbered time slot among the N time slots, and Y is the even-numbered time slot among the N time slots.

According to the association relationship between the first DMRS pattern and the second DMRS pattern, determine Y second DMRS patterns. Illustratively, it can be implemented in any of the following ways: Determine according to the first DMRS pattern and the preset offset value Or, determine the second DMRS pattern according to the first DMRS pattern and the preset correspondence; or, determine the second DMRS pattern according to the position of the time domain symbol occupied by the additional DMRS and the first DMRS pattern.

S502. The network device generates PDSCHs of N time slots according to mapping and modulation of the N DMRS patterns.

Among them, the network equipment performs mapping and modulation according to N different DMRS patterns, and generates PDSCHs of N time slots.

For example, if X represents the first X time slots in the N time slots, and Y is the other time slots in the N time slots; then the network device performs mapping and modulation according to the first DMRS pattern to generate the first X time slots PDSCH, the PDSCH of other Y time slots is generated according to the second DMRS pattern.

For example, if X is equal to N-1 and Y is equal to 1, then the first N-1 time slots of N time slots correspond to the first DMRS pattern, and the Nth time slot corresponds to the second DMRS pattern. The second DMRS pattern is different. For example, when the DMRS included in the first DMRS pattern is a pre-DMRS, and the second DMRS pattern includes a pre-DMRS and an additional DMRS, the receiver device uses two types of DMRS when performing channel estimation. Different DMRS patterns perform channel estimation. Therefore, the channel estimation results of the Nth time slot can be channel equalized according to the channel estimation results corresponding to the first X time slots to improve the channel estimation performance, thereby improving the demodulation performance. Or, during demodulation, joint demodulation is performed according to the demodulation results corresponding to the N time slots, thereby improving the demodulation performance.

If X is an odd number of timeslots among N timeslots, and Y is an even number of timeslots among N timeslots; the terminal device performs mapping and modulation according to the first DMRS pattern to generate PDSCHs for X odd numbered timeslots , According to the second DMRS pattern, generate the PDSCH of other Y time slots with even numbers.

For example, among the N time slots, the odd-numbered time slots and the even-numbered time slots correspond to different DMRS patterns. When the receiver device performs channel estimation, it can compare the results according to the channel estimation result of the previous time slot. The channel estimation result of the current time slot is used for channel equalization. Since two different DMRS patterns are used for channel estimation, the channel estimation performance can be improved, thereby improving the demodulation performance. Or, during demodulation, joint demodulation is performed according to the demodulation results corresponding to the N time slots, thereby improving the demodulation performance.

If in N time slots, the first M-1 time slots in every M time slots correspond to the first DMRS pattern, and the Mth time slot corresponds to the second DMRS pattern, where M is a positive value greater than 1. An integer, and N is an integer multiple of M.

For example, if the repeated transmission includes 10 time slots, the first 4 time slots of every 5 time slots correspond to the first DMRS pattern, and the fifth time slot corresponds to the second DMRS pattern, that is, time slots 0 to 3 correspond to For the first DMRS pattern, time slot 4 corresponds to the second DMRS pattern, time slot 5 to time slot 8 corresponds to the first DMRS pattern, and time slot 9 corresponds to the second DMRS pattern.

Among the N time slots, each M time slots correspond to different DMRS patterns in the order of looping. When the receiver device performs channel estimation, it can be based on the channel estimation for the previous time slot in each M time slots. As a result, channel equalization is performed on the channel estimation result of the current time slot. Since two different DMRS patterns are used for channel estimation, the channel estimation performance can be improved, thereby improving the demodulation performance. Or, during demodulation, joint demodulation is performed according to the demodulation results corresponding to each M time slots, thereby improving demodulation performance.

S503: The network device sends the PDSCH of N time slots to the terminal device. Correspondingly, the terminal device receives the PDSCH of N time slots sent by the network device.

Optionally, after S503, the following steps may be further included:

S504. The terminal device determines N DMRS patterns, where the N DMRS patterns are not completely the same.

In a possible implementation manner, the terminal device determines N DMRS patterns according to the high-level configuration. Specifically, the terminal device determines the first DMRS pattern and the second DMRS pattern according to the RRC signaling sent by the network device. According to the pre-negotiated configuration, it is determined which of the N time slots adopts the first DMRS pattern and which time slot adopts the second DMRS pattern, thereby determining N DMRS patterns that are not exactly the same, and determining that the N are not exactly the same The time slot in which the DMRS pattern is applied.

In another possible implementation manner, the terminal device determines the first DMRS pattern according to the high-level configuration, and determines Y second DMRS patterns according to the association relationship between the first DMRS pattern and the second DMRS pattern. And according to the pre-negotiated configuration, it is determined that the number of the first DMRS pattern is X and the number of the second DMRS pattern is Y, where the sum of X and Y is equal to N. It should be noted that the specific values of X and Y can be preset or instructed by the network device through high-level configuration. For example, X represents the first X time slots among N time slots, and Y is N time slots. Other time slots in the slot; or, X is the odd-numbered time slot among the N time slots, and Y is the even-numbered time slot among the N time slots.

According to the association relationship between the first DMRS pattern and the second DMRS pattern, determine Y second DMRS patterns. Illustratively, it can be implemented in any of the following ways: Determine according to the first DMRS pattern and the preset offset value Or, determine the second DMRS pattern according to the first DMRS pattern and the preset correspondence; or, determine the second DMRS pattern according to the position of the time domain symbol occupied by the additional DMRS and the first DMRS pattern.

The N DMRS patterns determined by the terminal device are the same as the N DMRS patterns determined by the network device in step S501.

S505. The terminal device demaps and demodulates the received PDSCH of the N time slots according to the N DMRS patterns, and obtains data carried by the PDSCH of the N time slots.

In this solution, the DMRS patterns adopted by the N time slots are not completely the same. The terminal equipment can demodulate data according to the N time slots, instead of demodulating data according to the N identical time slots in the traditional way. The method in this solution enhances the demodulation performance of the coverage, while being able to adapt to different computational complexity requirements.

In this embodiment, the network device determines N different DMRS patterns and performs mapping and modulation according to the N different DMRS patterns to generate N timeslots of PDSCH; the network device sends N timeslots of PDSCH to the terminal device. PDSCH. In this embodiment, in the coverage enhancement mode, multiple time slots repeatedly transmitted adopt demodulation reference signal patterns with different time domain structures to reduce the distance between OFDM symbols and DMRS in some time slots. Thereby improving the demodulation performance. In addition, the terminal device can jointly demodulate the PDSCH of the N time slots sent by the receiving network device by determining N not identical DMRS patterns, and obtain the data carried by the PDSCH of the N time slots, which can further adapt to different Computational complexity requirements.

In any of the foregoing embodiments, the time window for repeated transmission may be determined according to a high-level configuration. For example, the network device may indicate the number N of timeslots for repeated transmission to the terminal device.

It should be noted that the reference signal processing method provided in the embodiments of the present application is not limited to the case where the reference signal pattern is a DMRS pattern, for example, it may also be a CSI-RS pattern, a rate matching pattern, and the like. For a similar problem of determining multiple patterns, the method of the embodiment of the present application can also be used, except that the DMRS pattern can be replaced with the pattern in the corresponding scene.

Example Six

FIG. 10 is a schematic structural diagram of a reference signal processing apparatus provided by an embodiment of this application. As shown in FIG. 10, the apparatus 200 provided in this embodiment includes: a processing module 201.

The processing module 201 is configured to determine N demodulation reference signal DMRS patterns, where the N DMRS patterns are not completely the same, and N is a positive integer greater than 1; and, according to the N DMRS patterns, the N DMRS patterns Orthogonal frequency division multiplexing OFDM symbols of the time slots are processed, wherein the N DMRS patterns correspond to the transmission of the same transport block TB in the N time slots.

The reference signal processing device 200 provided in this embodiment can be used to execute the technical solution executed by the reference signal processing device in any of the foregoing method embodiments, and its implementation principles and technical solutions are similar, and will not be repeated here.

In some possible designs, the processing module 201 is specifically configured to determine the N DMRS patterns according to a high-level configuration.

In some possible designs, the processing module 201 is specifically configured to determine a first DMRS pattern according to a high-level configuration; and, according to the first DMRS pattern, determine other N-1 DMRS patterns.

In some possible designs, the other N-1 DMRS patterns are determined according to the first DMRS pattern and a preset offset value, and the preset offset value is used to indicate the other N-1 DMRS patterns The position of the time domain symbol occupied by the DMRS in.

In some possible designs, the preset offset value corresponding to the DMRS pattern that is the same as the first DMRS pattern included in the N-1 DMRS patterns is 0; The preset offset values corresponding to the DMRS patterns with different first DMRS patterns are not 0.

In some possible designs, the other N-1 DMRS patterns are determined according to the first DMRS pattern and a preset correspondence relationship, where the preset correspondence relationship is the first DMRS pattern and the other N-1 DMRS patterns. Correspondence of each DMRS pattern.

In some possible designs, the N-1 DMRS patterns are determined according to the additional DMRS and the first DMRS pattern.

In some possible designs, the DMRS patterns included in the N-1 DMRS patterns that are different from the first DMRS pattern are obtained by inserting the additional DMRS in the first DMRS pattern.

In some possible designs, the N DMRS patterns include X first DMRS patterns and Y second DMRS patterns;

The first X time slots of the N time slots adopt the X first DMRS patterns; the other Y time slots of the N time slots adopt the Y second DMRS patterns; wherein, X and Y are both It is a positive integer, and the sum of X and Y is equal to N.

In some possible designs, among the N time slots, the first M-1 time slots of every M time slots adopt the first DMRS pattern, and the Mth time slot adopts the second DMRS pattern, Among them, M is a positive integer greater than 1.

In some possible designs, the DMRS in the first DMRS pattern is a pre-DMRS.

In some possible designs, the OFDM symbols of the N timeslots are OFDM symbols included in the physical uplink shared channel PUSCH of N timeslots, or OFDM symbols included in the physical downlink shared channel PDSCH of N timeslots.

In some possible designs, the processing module 201 is specifically configured to generate a PUSCH with N timeslots or a PDSCH with N timeslots according to the mapping and modulation of the N DMRS patterns.

In some possible designs, the reference signal processing device 200 further includes: a transceiver module 202;

The transceiver module 202 is configured to send the PUSCH of the N time slots or the PDSCH of the N time slots.

In some possible designs, the transceiver module 202 is also used to receive the PUSCH of N timeslots or the PDSCH of N timeslots.

Then the processing module 201 is specifically configured to demap and demodulate the received PUSCH of the N time slots or the received PDSCH of the N time slots according to the N DMRS patterns, and obtain the received information of the N time slots PUSCH or data carried by the received PDSCH of the N time slots.

In some possible designs, the N is determined according to the high-level configuration.

The reference signal processing apparatus provided in the embodiment of the present application may be used to execute the technical solution executed by the sender device or the receiver device in any of the foregoing embodiments, and its implementation principles and technical solutions are similar, and will not be repeated here.

Example Seven

FIG. 11 is a schematic structural diagram of an electronic device provided by another embodiment of the application. Referring to FIG. 11, the electronic device 300 includes: a processor 311, a memory 312, and an interface 313 for communicating with other devices;

The memory 312 stores computer execution instructions;

The processor 311 executes the computer-executable instructions stored in the memory, so that the processor 311 executes the technical solution executed by the reference signal processing apparatus in any of the foregoing method embodiments.

FIG. 11 is a simple design of an electronic device. The embodiment of the present application does not limit the number of processors and memories in the reference signal processing device. FIG. 11 only takes the number of 1 as an example for illustration.

In a specific implementation manner of the electronic device shown in FIG. 11, the memory 312, the processor 311, and the interface 313 may be connected by a bus 314, and optionally, the memory 312 may be integrated inside the processor 311.

The embodiment of the present application provides a computer-readable storage medium, the computer-readable storage medium stores a computer-executable instruction, and when the computer-executable instruction is executed by a processor, it is used to implement the reference signal processing in any of the above-mentioned embodiments The technical solution implemented by the device.

The embodiment of the present application provides a computer program product, including: program instructions, which are used to implement the technical solution executed by the reference signal processing device in any of the foregoing embodiments.

The embodiments of the present application provide a program, when the program is executed by a processor, it is used to execute the technical solution executed by the reference signal processing apparatus in any of the foregoing embodiments.

An embodiment of the present application may also provide a chip, which includes a processing module and a communication interface, and the processing module can execute the technical solution executed by the reference signal processing device in any of the foregoing embodiments.

Further, the chip further includes a storage module (such as a memory), the storage module is used to store instructions, the processing module is used to execute the instructions stored in the storage module, and the execution of the instructions stored in the storage module causes the chip to perform any of the foregoing. In an embodiment, refer to the technical solution implemented by the signal processing device.

In the several embodiments provided in this application, it should be understood that the disclosed device and method may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the modules is only a logical function division, and there may be other divisions in actual implementation, for example, multiple modules can be combined or integrated. To another system, or some features can be ignored, or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be through some interfaces. The indirect coupling or communication connection of the modules may be in electrical, mechanical or other forms.

In the specific implementation of the above-mentioned reference signal processing device, it should be understood that the processor may be a central processing unit (English: Central Processing Unit, abbreviated as: CPU), or other general-purpose processors, digital signal processors (English: Digital Signal Processor, referred to as DSP), application specific integrated circuit (English: Application Specific Integrated Circuit, referred to as ASIC), etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps in the method disclosed in this application can be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.

All or part of the steps in the foregoing method embodiments may be implemented by a program instructing relevant hardware. The aforementioned program can be stored in a readable memory. When the program is executed, it executes the steps that include the foregoing method embodiments; and the foregoing memory (storage medium) includes: read-only memory (English: read-only memory, abbreviated as: ROM), RAM, flash memory, hard disk, Solid state hard disk, magnetic tape (English: magnetic tape), floppy disk (English: floppy disk), optical disc (English: optical disc) and any combination thereof.

Claims (34)

A reference signal processing method, characterized in that it comprises: Determining N demodulation reference signal DMRS patterns, where the N DMRS patterns are not completely the same, and N is a positive integer greater than 1; The orthogonal frequency division multiplexing OFDM symbols of the N time slots are processed according to the N DMRS patterns, where the N DMRS patterns correspond to the transmission of the same transport block TB in the N time slots. The method according to claim 1, wherein the determining N DMRS patterns comprises: The N DMRS patterns are determined according to the high-level configuration. The method according to claim 1, wherein the determining N DMRS patterns comprises: Determine the first DMRS pattern according to the high-level configuration; According to the first DMRS pattern, other N-1 DMRS patterns are determined. The method according to claim 3, wherein the other N-1 DMRS patterns are determined according to the first DMRS pattern and a preset offset value, and the preset offset value is used to indicate the other The position of the time domain symbol occupied by the DMRS in the N-1 DMRS patterns. The method according to claim 4, wherein the preset offset value corresponding to the DMRS pattern that is the same as the first DMRS pattern included in the N-1 DMRS patterns is 0; the N-1 DMRS patterns The preset offset value corresponding to the DMRS pattern different from the first DMRS pattern included in the DMRS pattern is not 0. The method according to claim 3, wherein the other N-1 DMRS patterns are determined according to the first DMRS pattern and a preset correspondence relationship, wherein the preset correspondence relationship is the first DMRS pattern and The corresponding relationship of the other N-1 DMRS patterns. The method according to claim 3, wherein the N-1 DMRS patterns are determined based on the additional DMRS and the first DMRS pattern. The method according to claim 7, wherein the DMRS patterns included in the N-1 DMRS patterns that are different from the first DMRS pattern are obtained by inserting the additional DMRS in the first DMRS pattern of. The method according to any one of claims 1 to 8, wherein the N DMRS patterns include X first DMRS patterns and Y second DMRS patterns; The first X time slots of the N time slots adopt the X first DMRS patterns; the other Y time slots of the N time slots adopt the Y second DMRS patterns; wherein, X and Y are both It is a positive integer, and the sum of X and Y is equal to N. The method according to any one of claims 1 to 8, wherein in the N time slots, the first M-1 time slots in each M time slots adopt the first DMRS pattern, and the Mth The second DMRS pattern is used for each time slot, where M is a positive integer greater than 1. The method according to any one of claims 1 to 10, wherein the DMRS in the first DMRS pattern is a pre-DMRS. The method according to any one of claims 1 to 11, wherein the OFDM symbols of the N time slots are OFDM symbols included in the physical uplink shared channel PUSCH of the N time slots, or the physical uplink shared channel of the N time slots. OFDM symbols included in the downlink shared channel PDSCH. The method according to claim 12, wherein the processing OFDM symbols of N time slots according to the N DMRS patterns comprises: According to the mapping and modulation of the N DMRS patterns, a PUSCH of N time slots or a PDSCH of N time slots are generated. The method according to claim 13, wherein the method further comprises: Sending the PUSCH of the N time slots or the PDSCH of the N time slots. The method according to claim 12, wherein the processing OFDM symbols of N time slots according to the N DMRS patterns comprises: Demapping and demodulating the received PUSCH of the N time slots or the received PDSCH of the N time slots according to the N DMRS patterns, and obtain the received PUSCH of the N time slots or the received N time slots Data carried by the PDSCH of the time slot. The method according to any one of claims 1 to 15, wherein the N is determined according to a high-level configuration. A reference signal processing device, characterized in that it comprises: A processing module, configured to determine N demodulation reference signal DMRS patterns, where the N DMRS patterns are not completely the same, and N is a positive integer greater than 1; And, processing the orthogonal frequency division multiplexing OFDM symbols of the N time slots according to the N DMRS patterns, where the N DMRS patterns correspond to the transmission of the same transport block TB in the N time slots. The apparatus according to claim 17, wherein the processing module is specifically configured to determine the N DMRS patterns according to a high-level configuration. The apparatus according to claim 17, wherein the processing module is specifically configured to determine a first DMRS pattern according to a high-level configuration; and, according to the first DMRS pattern, determine other N-1 DMRS patterns. The apparatus according to claim 19, wherein the other N-1 DMRS patterns are determined according to the first DMRS pattern and a preset offset value, and the preset offset value is used to indicate the other The position of the time domain symbol occupied by the DMRS in the N-1 DMRS patterns. The apparatus according to claim 20, wherein the preset offset value corresponding to the DMRS pattern that is the same as the first DMRS pattern included in the N-1 DMRS patterns is 0; the N-1 DMRS patterns The preset offset value corresponding to the DMRS pattern different from the first DMRS pattern included in the DMRS pattern is not 0. The apparatus according to claim 19, wherein the other N-1 DMRS patterns are determined according to a first DMRS pattern and a preset correspondence relationship, wherein the preset correspondence relationship is that the first DMRS pattern and The corresponding relationship of the other N-1 DMRS patterns. The apparatus according to claim 19, wherein the N-1 DMRS patterns are determined based on the additional DMRS and the first DMRS pattern. The apparatus according to claim 23, wherein the DMRS patterns included in the N-1 DMRS patterns that are different from the first DMRS pattern are obtained by inserting the additional DMRS in the first DMRS pattern of. The device according to any one of claims 17 to 24, wherein the N DMRS patterns comprise X first DMRS patterns and Y second DMRS patterns; The first X time slots of the N time slots adopt the X first DMRS patterns; the other Y time slots of the N time slots adopt the Y second DMRS patterns; where X and Y are both It is a positive integer, and the sum of X and Y is equal to N. The apparatus according to any one of claims 17 to 24, wherein among the N time slots, the first M-1 time slots in each M time slots use the first DMRS pattern, and the Mth The second DMRS pattern is used for each time slot, where M is a positive integer greater than 1. The apparatus according to any one of claims 17 to 26, wherein the DMRS in the first DMRS pattern is a pre-DMRS. The apparatus according to any one of claims 17 to 27, wherein the OFDM symbols of the N timeslots are OFDM symbols included in the physical uplink shared channel PUSCH of the N timeslots, or the physical uplink shared channel of the N timeslots. OFDM symbols included in the downlink shared channel PDSCH. The apparatus according to claim 28, wherein the processing module is specifically configured to generate a PUSCH of N time slots or a PDSCH of N time slots according to the mapping and modulation of the N DMRS patterns. The device according to claim 29, further comprising: a transceiver module; The transceiver module is configured to send the PUSCH of the N time slots or the PDSCH of the N time slots. The apparatus according to claim 28, wherein the processing module is specifically configured to perform demapping and de-mapping of the received PUSCH of the N time slots or the received PDSCH of the N time slots according to the N DMRS patterns. Demodulate, and obtain the data carried by the received PUSCH of the N time slots or the received PDSCH of the N time slots. The device according to any one of claims 17 to 31, wherein the N is determined according to a high-level configuration. An electronic device, characterized by comprising: a processor, a memory, and a communication interface; The memory stores computer execution instructions; The processor executes the computer-executable instructions stored in the memory, so that the processor executes the method according to any one of claims 1 to 16. A computer-readable storage medium, wherein a computer-executable instruction is stored in the computer-readable storage medium, and when the computer-executable instruction is executed by a processor, it is used to implement any one of claims 1 to 16 The method described.

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