Method and apparatus for mapping transmission of demodulated reference signal, and storage medium

Abstract

This disclosure relates to a method, apparatus, and storage medium for mapping and transmitting a demodulation reference signal. The method includes: obtaining the starting symbol and the number of consecutively transmitted symbols; and configuring the demodulation reference signal for the entire consecutively transmitted symbols according to a pre-demodulation reference signal mapping scheme, starting from the starting symbol of the actual transmitted consecutively transmitted symbols. This disclosure proposes a more flexible DMRS mapping method, which can transmit more symbols without affecting channel estimation performance, improve channel estimation performance without changing the transmission rate, and thus improve system performance.

Description

Technical Field

[0001] This disclosure relates to the field of wireless communication, and in particular to a method and apparatus for mapping and transmitting demodulated reference signals, and a storage medium. Background Technology

[0002] 5G networks use high-frequency communication bands, which limits user transmission power and results in insufficient uplink coverage, leading to a significant deterioration in communication quality for users at the cell edge. Operators must reduce inter-cell spacing to meet user demands, increasing the cost of deploying and maintaining 5G networks. Summary of the Invention

[0003] The recently frozen 3GPP Rel-16 release TS 38.214 defines a new feature called PUSCH (Physical Uplink Shared Channel) Repetition Type B, but Repetition Type B still has many shortcomings. Mini-slot-based repetition makes more efficient use of uplink resources, but the frequent configuration of the DMRS (Demodulation Reference Signal) reduces resource utilization. The lack of an extended DMRS mapping method limits the further expansion of PUSCH repetitionType B, preventing the attainment of maximum coding gain.

[0004] Meanwhile, if cross-slot channel estimation technology can be further extended to the standard, it will not be necessary to configure DMRS symbol mapping separately for each slot / repetition; the application of TB scaling (Transport Block scaling) may also cause the TB length of continuous transmission to exceed the maximum number of symbols in a single slot.

[0005] In view of at least one of the above technical problems, this disclosure provides a method and apparatus for mapping transmission of demodulated reference signals and a storage medium, and proposes a more flexible DMRS mapping method that can transmit more symbols without affecting channel estimation performance and improve channel estimation performance without changing the transmission rate.

[0006] According to one aspect of this disclosure, a method for mapping transmission of a demodulated reference signal is provided, comprising:

[0007] Obtain the starting symbol and the number of consecutive transmitted symbols in the actual transmission;

[0008] Starting with the first symbol of the actual continuous transmission symbols, the demodulation reference signal is configured for the entire continuous transmission symbols according to the pre-demodulation reference signal mapping scheme.

[0009] In some embodiments of this disclosure, the method for mapping and transmitting the demodulated reference signal further includes:

[0010] The continuous transmission symbols after the configuration demodulation reference signal are transmitted.

[0011] In some embodiments of this disclosure, the demodulation reference signal configuration for the entire continuous transmission symbol according to the pre-demodulation reference signal mapping scheme includes:

[0012] Configure the number and time-domain location of demodulation reference signals in the entire continuous transmission symbol set.

[0013] In some embodiments of this disclosure, the pre-demodulation reference signal mapping scheme is a demodulation reference signal configuration scheme for single-slot transmission symbols.

[0014] In some embodiments of this disclosure, the demodulation reference signal configuration for the entire continuous transmission symbol according to the pre-demodulation reference signal mapping scheme includes:

[0015] For continuous transmission symbols in multiple time slots, the demodulation reference signal configuration scheme for single-time slot transmission symbols is expanded and then configured.

[0016] In some embodiments of this disclosure, the step of extending the demodulation reference signal configuration scheme based on the single-slot transmission symbol demodulation reference signal configuration scheme for the continuous transmission of symbols across multiple time slots, and configuring the demodulation reference signal, includes:

[0017] Determine whether the number of consecutively transmitted symbols in multiple time slots is greater than a predetermined value N, where the predetermined value N is the maximum number of symbols that can be transmitted in a single time slot;

[0018] If the number of consecutively transmitted symbols in multiple time slots is greater than a predetermined value N, the consecutively transmitted symbols in multiple time slots are split into at least two consecutively transmitted symbols based on the number of consecutively transmitted symbols in multiple time slots.

[0019] For each segment of continuous transmission symbols, the demodulation reference signal is configured according to the demodulation reference signal configuration scheme of single-slot transmission symbols.

[0020] In some embodiments of this disclosure, the step of splitting the continuous transmission symbols of multiple time slots into at least two segments of continuous transmission symbols based on the number of consecutive transmission symbols of multiple time slots includes:

[0021] The continuous transmission symbols of multiple time slots with a continuous transmission symbol count of L are split into segments of length L. The length of the k consecutive symbols is A continuous sequence of symbols, where k is a natural number greater than 0, k × N <L<(k+1)×N。

[0022] In some embodiments of this disclosure, the step of extending the demodulation reference signal configuration scheme based on the single-slot transmission symbol demodulation reference signal configuration scheme for the continuous transmission of symbols across multiple time slots, and configuring the demodulation reference signal, includes:

[0023] Using the number of consecutive transmitted symbols and additional position parameters of the demodulation reference signal, a predetermined demodulation reference signal mapping table is queried to configure the demodulation reference signal. The predetermined demodulation reference signal mapping table includes a single-symbol demodulation reference signal mapping table and a double-symbol demodulation reference signal mapping table.

[0024] In some embodiments of this disclosure, for consecutively transmitted symbols of a physical uplink shared channel, if the number of consecutively transmitted symbols is less than or equal to 28, the demodulation reference signal configuration for the entire consecutively transmitted symbols according to the pre-demodulation reference signal mapping scheme includes:

[0025] The demodulation reference signal is configured by querying the predetermined demodulation reference signal mapping table of the physical uplink shared channel.

[0026] According to another aspect of this disclosure, a mapping transmission apparatus for demodulating a reference signal is provided, comprising:

[0027] The symbol count acquisition module is used to acquire the starting symbol and the number of consecutively transmitted symbols in the actual transmission.

[0028] The configuration module is used to configure the demodulation reference signal for the entire continuous transmission symbol according to the pre-demodulation reference signal mapping scheme, starting from the first symbol of the actual continuous transmission symbol.

[0029] In some embodiments of this disclosure, the demodulated reference signal mapping transmission apparatus is used to perform operations implementing the demodulated reference signal mapping transmission method as described in any of the above embodiments.

[0030] According to another aspect of this disclosure, a mapping transmission apparatus for demodulating a reference signal is provided, comprising:

[0031] Memory, used to store instructions;

[0032] A processor is configured to execute the instructions, causing the demodulated reference signal mapping transmission apparatus to perform operations implementing the demodulated reference signal mapping transmission method as described in any of the above embodiments.

[0033] According to another aspect of this disclosure, a non-transitory computer-readable storage medium is provided, wherein the non-transitory computer-readable storage medium stores computer instructions that, when executed by a processor, implement the mapping transmission method for demodulated reference signals as described in any of the above embodiments.

[0034] This disclosure proposes a more flexible DMRS mapping method that can transmit more symbols without affecting channel estimation performance, improve channel estimation performance without changing the transmission rate, and thus improve system performance. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 These are schematic diagrams illustrating some embodiments of the mapping transmission method for demodulating reference signals according to this disclosure.

[0037] Figure 2 This is a schematic diagram of a complete repeat transmission type B single-symbol DMRS configuration mapping table in some embodiments of this disclosure.

[0038] Figure 3 This is a schematic diagram of a complete repeat transmission type B double symbol DMRS configuration mapping table in some embodiments of this disclosure.

[0039] Figure 4 This is a schematic diagram of some embodiments of the DMRS mapping scheme disclosed herein.

[0040] Figure 5 This is a schematic diagram of some other embodiments of the DMRS mapping scheme disclosed herein.

[0041] Figure 6 These are schematic diagrams of some embodiments of the mapping transmission apparatus for demodulating reference signals according to this disclosure.

[0042] Figure 7 The diagram shows the structure of some other embodiments of the mapping transmission apparatus for demodulating reference signals according to this disclosure. Detailed Implementation

[0043] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this disclosure or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0044] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of this disclosure.

[0045] At the same time, it should be understood that, for ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn according to actual scale.

[0046] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0047] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0048] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0049] Figure 1 This diagram illustrates some embodiments of the mapping transmission method for demodulating reference signals according to the present disclosure. Preferably, this embodiment can be performed by the mapping transmission apparatus for demodulating reference signals according to the present disclosure. The method may include at least one of the following steps, wherein:

[0050] Step 11: Obtain the starting symbol and the number of consecutive transmission symbols of the actual transmitted consecutive transmission symbols.

[0051] In some embodiments of this disclosure, the actual transmitted continuous transmission symbols can be continuous transmission symbols in any of the following scenarios: cross-slot channel estimation, transport block scaling, physical uplink shared channel repetitive transmission type B, etc.

[0052] In some embodiments of this disclosure, the actual transmitted continuous transmission symbols can be continuous transmission symbols spanning multiple time slots or single time slots in uplink channels, downlink channels, and other communication systems.

[0053] Step 12: Starting from the first symbol of the actual continuous transmission symbol, configure the demodulation reference signal for the entire continuous transmission symbol according to the pre-demodulation reference signal mapping scheme.

[0054] In some embodiments of this disclosure, the pre-demodulation reference signal mapping scheme can be a demodulation reference signal configuration scheme for single-slot transmission symbols.

[0055] In some embodiments of this disclosure, the pre-demodulation reference signal mapping scheme can be an existing mapping scheme in TS38.211.

[0056] In some embodiments of this disclosure, step 12 may include: for a typical scenario in PUSCH channel Repetition Type B, starting from consecutive transmitted symbols in actual transmission, configuring DMRS for the entire consecutive transmitted symbols using a pre-diffraction DMRS according to the mapping scheme already available in TS38.211. By doing so, the above embodiments of this disclosure effectively reduce the number of DMRS for actual repetitions with a small number of symbols, thereby improving the channel's resource utilization.

[0057] In some embodiments of this disclosure, step 12, which involves configuring demodulation reference signals for the entire continuous transmission symbol system according to a pre-demodulation reference signal mapping scheme, may include configuring the number and time-domain position of demodulation reference signals in the entire continuous transmission symbol system.

[0058] In some embodiments of this disclosure, configuring the demodulation reference signal for the entire continuous transmission symbol according to the pre-demodulation reference signal mapping scheme may include: for continuous transmission symbols with multiple time slots, expanding the demodulation reference signal configuration scheme based on the demodulation reference signal configuration scheme of a single time slot transmission symbol, and configuring the demodulation reference signal.

[0059] In some embodiments of this disclosure, the step of extending the demodulation reference signal configuration scheme based on the demodulation reference signal configuration scheme of a single-slot transmission symbol for continuous transmission of symbols in multiple time slots, and configuring the demodulation reference signal, may include at least one of steps 121-123, wherein:

[0060] Step 121: Determine whether the number of consecutively transmitted symbols in multiple time slots is greater than a predetermined value N, where the predetermined value N is the maximum number of symbols that can be transmitted in a single time slot.

[0061] Step 122: If the number of consecutively transmitted symbols in multiple time slots is greater than a predetermined value N, the consecutively transmitted symbols in multiple time slots are split into at least two consecutively transmitted symbols based on the number of consecutively transmitted symbols in multiple time slots.

[0062] In some embodiments of this disclosure, step 122, the step of splitting the continuous transmission symbols of multiple time slots into at least two segments of continuous transmission symbols based on the number of consecutive transmission symbols in multiple time slots, may include: splitting the continuous transmission symbols of multiple time slots with a continuous transmission symbol count of L into segments of length L. The length of the k consecutive symbols is A continuous sequence of symbols, where k is a natural number greater than 0, k × N <L<(k+1)×N, This means L divided by (k+1) and then rounded up. This means L is divided by (k+1) and then rounded down.

[0063] Step 123: For each segment of continuous transmission symbol, configure the demodulation reference signal according to the demodulation reference signal configuration scheme of single-time-slot transmission symbol.

[0064] The embodiments described above can be applied to NR uplink channels, NR downlink channels, and other communication systems.

[0065] The following example illustrates the concept further using a predetermined value N equal to 14.

[0066] In step 121, it is determined whether the number of consecutively transmitted symbols is greater than 14.

[0067] In step 122, if the number of consecutively transmitted symbols is greater than 14, the consecutively transmitted symbols are split into at least two consecutively transmitted symbols according to the number of consecutively transmitted symbols.

[0068] In some embodiments of this disclosure, step 122, the step of splitting a continuous transmission symbol into at least two segments based on the number of consecutive transmission symbols, may include: splitting a continuous transmission symbol with a number of consecutive transmission symbols L into segments of length L. The length of the k consecutive symbols is A continuous sequence of symbols, where k is a natural number greater than 0, k × 14 <L<(k+1)×14, This means L divided by (k+1) and then rounded up. This means L is divided by (k+1) and then rounded down.

[0069] For example, for a continuous transmission of symbols L = 21, 14 < 21 < 2 × 14, that is, k = 1. Therefore, the continuous transmission of symbols L = 21 can be divided into segments of length 1. A continuous sequence of symbols and its length is A continuous string of symbols.

[0070] In step 123, for each segment of continuous transmission symbols, the demodulation reference signal is configured according to the pre-demodulation reference signal mapping scheme.

[0071] In some embodiments of this disclosure, for continuous transmission symbols of the physical uplink shared channel, step 123 may include: configuring DMRS for each continuous transmission symbol according to Tables 6.4.1.1.3-3 and 6.4.1.1.3-4 in TS 38.211.

[0072] The configuration of the above embodiments disclosed herein can ensure that the channel estimation performance is superior to the channel estimation performance of DMRS mapping under the current standard.

[0073] In some embodiments of this disclosure, the step of expanding the demodulation reference signal configuration scheme based on the demodulation reference signal configuration scheme of a single time slot transmission symbol for continuous transmission of symbols in multiple time slots and configuring the demodulation reference signal may include: using the number of continuous transmission symbols and additional position parameters of the demodulation reference signal to query a predetermined demodulation reference signal mapping table and configuring the demodulation reference signal, wherein the predetermined demodulation reference signal mapping table includes a single-symbol demodulation reference signal mapping table and a dual-symbol demodulation reference signal mapping table.

[0074] In some embodiments of this disclosure, for consecutively transmitted symbols of a physical uplink shared channel, if the number of consecutively transmitted symbols is less than or equal to 28, then step 12, the step of configuring the demodulation reference signal for the entire consecutively transmitted symbols according to the pre-demodulation reference signal mapping scheme, may include: configuring the demodulation reference signal by querying a predetermined demodulation reference signal mapping table of the physical uplink shared channel.

[0075] In some embodiments of this disclosure, the predetermined demodulation reference signal mapping table may include a single-symbol demodulation reference signal mapping table (e.g., Figure 2 (as shown) and the dual-symbol demodulation reference signal mapping table (as shown) Figure 3 (As shown). Figure 2 This is a schematic diagram of a complete repeat transmission type B single-symbol DMRS configuration mapping table in some embodiments of this disclosure. Figure 3 This is a schematic diagram of a complete repeat transmission type B double symbol DMRS configuration mapping table in some embodiments of this disclosure.

[0076] In some embodiments of this disclosure, the step of configuring the demodulation reference signal by querying a predetermined demodulation reference signal mapping table of the physical uplink shared channel may include: using the number of consecutive transmitted symbols (see...) Figure 2 and Figure 3 l in d The demodulation reference signal is configured by querying the predefined demodulation reference signal mapping table for Physical Uplink Shared Channel Repeat Transmission Type B (DMRS) and the additional position of the demodulation reference signal (dmrs). The number of consecutively transmitted symbols can be found in [reference needed]. Figure 2 and Figure 3 l in d For additional information on the demodulation reference signal in the symbols, please refer to [link / reference]. Figure 2 pos0-pos7 and Figure 3 pos0-pos3 in the example.

[0077] In some embodiments of this disclosure, after step 12, the mapping transmission method of the demodulated reference signal may further include: transmitting the continuous transmission symbols after configuring the demodulated reference signal.

[0078] Based on the demodulation reference signal mapping transmission method provided in the above embodiments of this disclosure, a modulation and demodulation signal configuration method for cross-time slot situations is provided. The above embodiments of this disclosure can be applied to uplink channels, downlink channels, and other communication systems. The above embodiments of this disclosure can achieve: continuous transmission DMRS configuration with multiple time slots, extending from a single-time slot DMRS configuration, transmitting more symbols without affecting channel estimation performance, improving channel estimation performance without changing the transmission rate, and thus improving system performance.

[0079] The embodiments disclosed above extend the single-slot DMRS symbol configuration scheme of the related technology, so that the single-slot DMRS symbol configuration scheme can be adapted to the transmission of continuous symbols across time slots.

[0080] The embodiments described above can be applied to the demodulation reference signal configuration of a communication channel when transmitting continuously to multiple time slots.

[0081] Based on the demodulation reference signal mapping transmission method provided in the above embodiments of this disclosure, a more flexible DMRS mapping method is proposed, which can make fuller use of channel resources, thereby improving the uplink communication performance and communication rate of cell edge users, and further reducing the cost required for deploying and maintaining 5G networks.

[0082] The embodiments disclosed above offer two advantages: firstly, they allow for flexible configuration of the DMRS symbol positions and number; secondly, they introduce DMRS mapping schemes with more than 14 symbols, which can serve as a foundation for further expansion of technologies such as Repetition Type B and TB scaling. Based on these two points, the embodiments disclosed above can effectively improve uplink resource utilization and achieve greater coding gain.

[0083] The following describes the mapping and transmission method for demodulated reference signals according to specific embodiments.

[0084] Figure 4 These are schematic diagrams illustrating some embodiments of the DMRS mapping scheme disclosed herein. Figure 4As shown, the above embodiments of this disclosure can be applied to NR (New Radio) PUSCH channel transmission, which can effectively improve uplink resource utilization.

[0085] like Figure 4 As shown, in the common DDDSU frame structure, D represents the downlink time slot, S represents the special time slot, and U represents the uplink time slot. The S time slot uses a configuration of DL (downlink symbol):GP (guard interval symbol):UL (uplink symbol) = 10:2:2, and the U time slot uses a configuration of DL:GP:UL = 10:2:2. Symbols 0-9 are downlink symbols, symbols 10-11 are guard interval symbols, and symbols 12-13 are uplink symbols. The fifth symbol (symbol 4) in the U time slot is also unusable for special reasons.

[0086] like Figure 4 As shown, using the existing Repetition Type B in the standard, with S=12, L=4, and the number of repetitions being 4, it will be divided into 5 actual repetitions, requiring 5 symbols to transmit DMRS symbols.

[0087] With the improved method according to the above embodiments of this disclosure, referring to the description in TS 38.211, the 14 symbols from S-slot symbol #12 to U-slot #11 are configured with 2 DMRS; while U-slots #12 and #13 are reconfigured with 1 DMRS, requiring a total of only 3 DMRS symbols. This improves resource utilization by (13-11) / 11 = 18%, and its performance is not inferior to that of the current NR uplink data channel.

[0088] Figure 5 This is a schematic diagram of some other embodiments of the DMRS mapping scheme disclosed herein. Figure 5 The embodiments are adapted to use the DMRS mapping scheme of the above embodiments of this disclosure for longer continuous symbols.

[0089] like Figure 5 As shown, when using the DDDSUDSUU frame structure, for the last two U time slots, when the RepetitionType B is further extended, a code block length of 28 symbols can be used to jointly encode the data in the two time slots. At this time, the DMRS can be configured based on the mapping method in the above embodiments of this disclosure to obtain more accurate channel estimation results and coding gain, thereby achieving better performance.

[0090] The embodiments of this disclosure enable flexible uplink channel data retransmission, improve spectrum utilization, and achieve higher coding gain. The methods described in the embodiments of this disclosure are not limited to the PUSCH channel Repetition Type B scenario; they can be used for continuous time-slot transmission on other channels.

[0091] The embodiments disclosed above mainly extend the mapping method of DMRS, which can effectively improve the implementation performance of Repetition Type B under the current standard. However, it is not limited to the PUSCH channel; this method can also be used for continuous transmission on other channels. Compared with this existing transmission scheme, the method of the embodiments disclosed above has the advantages of improving resource utilization and obtaining greater coding gain.

[0092] When the above embodiments of this disclosure are applied to Repetition Type B in related technologies, it is not necessary to configure one DMRS symbol in each actual repetition (e.g., Figure 4 (As shown), thereby improving resource utilization.

[0093] The above embodiments of this disclosure configure a DMRS mapping method with a symbol length greater than 14, which is beneficial to further improve the transmission efficiency and coding gain of repetition Type B, thereby improving system performance and uplink coverage capability.

[0094] Based on the methods of the above embodiments of this disclosure, the system configuration is more flexible, which facilitates the implementation of many new methods such as cross-slot channel estimation and TB (Transport Block) scaling, bringing potential performance gains.

[0095] The embodiments disclosed above relate to the field of wireless communication technology and are mainly used in 5G communication systems.

[0096] Figure 6 These are schematic diagrams illustrating some embodiments of the mapping transmission apparatus for demodulating reference signals according to this disclosure. For example... Figure 6 As shown, the demodulated reference signal mapping transmission device may include a symbol number acquisition module 61 and a configuration module 62, wherein:

[0097] The symbol number acquisition module 61 is used to acquire the starting symbol and the number of consecutively transmitted symbols in the actual transmission.

[0098] In some embodiments of this disclosure, the actual transmitted continuous transmission symbols are continuous transmission symbols in any of the following scenarios: cross-slot channel estimation, transport block scaling, physical uplink shared channel repetitive transmission type B, etc.

[0099] In some embodiments of this disclosure, the actual transmitted continuous transmission symbols can be continuous transmission symbols spanning multiple time slots or single time slots in uplink channels, downlink channels, and other communication systems.

[0100] The configuration module 62 is used to configure the demodulation reference signal for the entire continuous transmission symbol according to the pre-demodulation reference signal mapping scheme, starting from the starting symbol of the actual continuous transmission symbol.

[0101] In some embodiments of this disclosure, the pre-demodulation reference signal mapping scheme can be a demodulation reference signal configuration scheme for single-slot transmission symbols.

[0102] In some embodiments of this disclosure, the configuration module 62 can be used to configure the number and time-domain position of demodulation reference signals in the entire continuous transmission symbol set.

[0103] In some embodiments of this disclosure, the configuration module 62 can be used to extend the demodulation reference signal configuration scheme based on the single-slot transmission symbol demodulation reference signal configuration scheme for the continuous transmission of symbols in multiple time slots, and to configure the demodulation reference signal.

[0104] In some embodiments of this disclosure, the configuration module 62 can be used to determine whether the number of consecutively transmitted symbols in multiple time slots is greater than a predetermined value N, wherein the predetermined value N is the maximum number of symbols that can be transmitted in a single time slot; if the number of consecutively transmitted symbols in multiple time slots is greater than the predetermined value N, the consecutively transmitted symbols in multiple time slots are split into at least two segments of consecutively transmitted symbols according to the number of consecutively transmitted symbols in multiple time slots; for each segment of consecutively transmitted symbols, a demodulation reference signal is configured according to the demodulation reference signal configuration scheme of a single time slot transmission symbol.

[0105] In some embodiments of this disclosure, the configuration module 62 can be used to split the continuous transmission symbols of multiple time slots with a continuous transmission symbol count of L into segments of length L. The length of the k consecutive symbols is A continuous sequence of symbols, where k is a natural number greater than 0, k × N <L<(k+1)×N, This means L divided by (k+1) and then rounded up. This means L is divided by (k+1) and then rounded down.

[0106] In some embodiments of this disclosure, N can be 14.

[0107] The embodiments described above can be applied to NR uplink channels, NR downlink channels, and other communication systems.

[0108] In some embodiments of this disclosure, the configuration module 62 can be used to query a predetermined demodulation reference signal mapping table using the number of consecutively transmitted symbols and additional position parameters of the demodulation reference signal, and to configure the demodulation reference signal. The predetermined demodulation reference signal mapping table includes a single-symbol demodulation reference signal mapping table and a double-symbol demodulation reference signal mapping table.

[0109] In some embodiments of this disclosure, for consecutively transmitted symbols of the physical uplink shared channel, if the number of consecutively transmitted symbols is less than or equal to 28, the configuration module 62 can be used to configure the demodulation reference signal by querying a predetermined demodulation reference signal mapping table of the physical uplink shared channel.

[0110] In some embodiments of this disclosure, the predetermined demodulation reference signal mapping table may include a single-symbol demodulation reference signal mapping table (e.g., Figure 2 (as shown) and the dual-symbol demodulation reference signal mapping table (as shown) Figure 3 (As shown).

[0111] In some embodiments of this disclosure, the configuration module 62 can be used to query a predetermined demodulation reference signal mapping table for repeated transmission type B of the physical uplink shared channel using the number of consecutively transmitted symbols and the additional location of the demodulation reference signal, and to configure the demodulation reference signal.

[0112] In some embodiments of this disclosure, the mapping transmission apparatus for the demodulated reference signal can be used to transmit continuous transmission symbols after configuring the demodulated reference signal.

[0113] In some embodiments of this disclosure, the mapping transmission apparatus for the demodulated reference signal can be used to perform any of the embodiments described above (e.g., Figure 1 The operation of the demodulation reference signal mapping transmission method described in the embodiment)

[0114] Based on the demodulation reference signal mapping transmission apparatus provided in the above embodiments of this disclosure, a modulation and demodulation signal configuration apparatus for cross-time slot situations is provided. The above embodiments of this disclosure can be applied to uplink channels, downlink channels, and other communication systems. The above embodiments of this disclosure can achieve: continuous transmission DMRS configuration with multiple time slots, extending from a single-time slot DMRS configuration, transmitting more symbols without affecting channel estimation performance, improving channel estimation performance without changing the transmission rate, and thus improving system performance.

[0115] The embodiments disclosed above extend the single-slot DMRS symbol configuration scheme of the related technology, so that the single-slot DMRS symbol configuration scheme can be adapted to the transmission of continuous symbols across time slots.

[0116] The embodiments described above can be applied to the demodulation reference signal configuration of a communication channel when transmitting continuously to multiple time slots.

[0117] Figure 7 These are schematic diagrams illustrating the structure of other embodiments of the mapping transmission apparatus for demodulating reference signals according to this disclosure. For example... Figure 7 As shown, the computer device may include a memory 101 and a processor 102.

[0118] Memory 101 is used to store instructions, and processor 102 is coupled to memory 101. Processor 102 is configured to execute instructions stored in memory as described in any of the above embodiments (e.g., Figure 1 The method for mapping and transmitting the demodulated reference signal as described above.

[0119] like Figure 7 As shown, the computer device also includes a communication interface 103 for exchanging information with other devices. Additionally, the computer device includes a bus 104, through which the processor 102, communication interface 103, and memory 101 communicate with each other.

[0120] Memory 101 may include high-speed RAM, and may also include non-volatile memory, such as at least one disk drive. Memory 101 may also be a memory array. Memory 101 may also be divided into blocks, and the blocks may be combined into virtual volumes according to certain rules.

[0121] Furthermore, processor 102 may be a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present disclosure.

[0122] In some embodiments of this disclosure, Figure 6 and Figure 7 The demodulation reference signal mapping transmission device in the embodiment can be implemented as a terminal device, a network-side device, or other communication device.

[0123] Based on the demodulation reference signal mapping transmission apparatus provided in the above embodiments of this disclosure, the DMRS mapping method in the Repetition Type B scenario is redefined, thereby improving resource utilization.

[0124] The embodiments disclosed above provide a superior DMRS mapping scheme for transmission channels with longer symbol lengths, improving system performance and providing a foundation for further channel improvements, combining practicality and potential.

[0125] The embodiments disclosed above are not limited to the case of PUSCH Repetition Type B. The methods described in this patent are applicable to continuous time slot transmission on other channels.

[0126] According to another aspect of this disclosure, a non-transitory computer-readable storage medium is provided, wherein the non-transitory computer-readable storage medium stores computer instructions that, when executed by a processor, implement any of the embodiments described above (e.g., Figure 1 The demodulation reference signal mapping transmission method described in the embodiment)

[0127] Based on the non-transitory computer-readable storage medium provided in the above embodiments of this disclosure, channel resources can be made more fully utilized, thereby improving the uplink communication performance and communication rate of cell edge users, and further reducing the cost required for deploying and maintaining 5G networks.

[0128] The embodiments disclosed above offer two advantages: firstly, they allow for flexible configuration of the DMRS symbol positions and number; secondly, they introduce DMRS mapping schemes with more than 14 symbols, which can serve as a foundation for further expansion of technologies such as Repetition Type B and TB scaling. Based on these two points, the embodiments disclosed above can effectively improve uplink resource utilization and achieve greater coding gain.

[0129] The embodiments described above can be applied to uplink channels, downlink channels, and other communication systems. These embodiments can achieve: continuous transmission DMRS configuration with multiple time slots, extending from a single-time-slot DMRS configuration; transmitting more symbols without affecting channel estimation performance; improving channel estimation performance without changing the transmission rate; and thus improving system performance.

[0130] The embodiments disclosed above extend the single-slot DMRS symbol configuration scheme of the related technology, so that the single-slot DMRS symbol configuration scheme can be adapted to the transmission of continuous symbols across time slots.

[0131] The embodiments described above can be applied to the demodulation reference signal configuration of a communication channel when transmitting continuously to multiple time slots.

[0132] The demodulated reference signal mapping transmission device described above can be implemented as a general-purpose processor, programmable logic controller (PLC), digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component or any suitable combination thereof for performing the functions described in this application.

[0133] This concludes the detailed description of the present disclosure. To avoid obscuring the concept of the disclosure, some details known in the art have not been described. Those skilled in the art will fully understand how to implement the technical solutions disclosed herein based on the above description.

[0134] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware, or by a program instructing the relevant hardware to implement them. The program can be stored in a non-transitory computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0135] The description in this disclosure is provided for illustrative and descriptive purposes only and is not intended to be exhaustive or to limit the disclosure to its forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of this disclosure and to enable those skilled in the art to understand this disclosure and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A method for mapping and transmitting a demodulated reference signal, characterized in that, include: Obtain the starting symbol and the number of consecutive transmitted symbols in the actual transmission; Starting from the first symbol of the actual continuous transmission symbol, the demodulation reference signal is configured for the entire continuous transmission symbol according to the pre-demodulation reference signal mapping scheme, wherein the pre-demodulation reference signal mapping scheme is the demodulation reference signal configuration scheme for a single time slot transmission symbol. The step of configuring the demodulation reference signal for the entire continuous transmission symbol according to the pre-demodulation reference signal mapping scheme includes: For continuous transmission symbols in multiple time slots, the demodulation reference signal configuration scheme for single-time slot transmission symbols is expanded and then configured. The continuous transmission of symbols across multiple time slots, based on the demodulation reference signal configuration scheme for single-time-slot transmission symbols, is extended, and the demodulation reference signal configuration includes: Determine whether the number of consecutively transmitted symbols in multiple time slots is greater than a predetermined value N, where the predetermined value N is the maximum number of symbols that can be transmitted in a single time slot; If the number of consecutively transmitted symbols in multiple time slots is greater than a predetermined value N, the consecutively transmitted symbols in multiple time slots are split into at least two consecutively transmitted symbols based on the number of consecutively transmitted symbols in multiple time slots. For each segment of continuous transmission symbols, the demodulation reference signal is configured according to the demodulation reference signal configuration scheme of single-slot transmission symbols.

2. The method for mapping and transmitting the demodulated reference signal according to claim 1, characterized in that, Also includes: The continuous transmission symbols after the configuration demodulation reference signal are transmitted.

3. The method for mapping and transmitting the demodulated reference signal according to claim 1 or 2, characterized in that, The configuration of demodulation reference signals for the entire continuously transmitted symbol system according to the pre-demodulation reference signal mapping scheme includes: Configure the number and time-domain location of demodulation reference signals in the entire continuous transmission symbol set.

4. The method for mapping and transmitting the demodulated reference signal according to claim 1 or 2, characterized in that, The step of splitting the continuous transmission symbols of multiple time slots into at least two continuous transmission symbol segments based on the number of consecutive transmission symbols in multiple time slots includes: The continuous transmission symbols of multiple time slots with a continuous transmission symbol count of L are split into segments of length L. The k consecutive symbols and their lengths are A continuous sequence of symbols, where k is a natural number greater than 0, k × N <L<(k+1)×N。 5. The method for mapping and transmitting the demodulated reference signal according to claim 1 or 2, characterized in that, The continuous transmission of symbols across multiple time slots is an extension of the demodulation reference signal configuration scheme for single-time-slot transmission symbols, and the demodulation reference signal configuration includes: Using the number of consecutive transmitted symbols and additional position parameters of the demodulation reference signal, a predetermined demodulation reference signal mapping table is queried to configure the demodulation reference signal. The predetermined demodulation reference signal mapping table includes a single-symbol demodulation reference signal mapping table and a double-symbol demodulation reference signal mapping table.

6. The method for mapping and transmitting the demodulated reference signal according to claim 5, characterized in that, For consecutive uplink symbols in a physical uplink shared channel, if the number of consecutive uplink symbols is less than or equal to 28, the demodulation reference signal configuration for the entire consecutive uplink symbols according to the pre-demodulation reference signal mapping scheme includes: The demodulation reference signal is configured by querying the predetermined demodulation reference signal mapping table of the physical uplink shared channel.

7. A mapping transmission apparatus for demodulating a reference signal, characterized in that, include: The symbol count acquisition module is used to acquire the starting symbol and the number of consecutively transmitted symbols in the actual transmission. The configuration module is used to configure the demodulation reference signal for the entire continuous transmission symbol set, starting from the first symbol of the actual transmitted continuous transmission symbol set, according to the pre-demodulation reference signal mapping scheme. The demodulated reference signal mapping transmission device is used to implement the demodulated reference signal mapping transmission method as described in any one of claims 1-6.

8. A mapping transmission apparatus for demodulating a reference signal, characterized in that, include: Memory, used to store instructions; A processor is configured to execute the instructions such that the demodulated reference signal mapping transmission apparatus implements the demodulated reference signal mapping transmission method as described in any one of claims 1-6.

9. A non-transitory computer-readable storage medium, characterized in that, The non-transitory computer-readable storage medium stores computer instructions that, when executed by a processor, implement the mapping transmission method for the demodulated reference signal as described in any one of claims 1-6.

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