WO2022063087A1

WO2022063087A1 - Physical uplink shared channel transmission and reception methods, terminal, and base station

Info

Publication number: WO2022063087A1
Application number: PCT/CN2021/119381
Authority: WO
Inventors: 李岩; 王飞; 郑毅; 柯颋; 刘建军
Original assignee: 中国移动通信有限公司研究院; 中国移动通信集团有限公司
Priority date: 2020-09-22
Filing date: 2021-09-18
Publication date: 2022-03-31
Also published as: CN114258131A

Abstract

Disclosed are physical uplink shared channel transmission and reception methods, a terminal, and a base station. According to embodiments of the present invention, in a multi-TRP scenario, PUSCHs scheduled by means of first DCI and second DCI can be repeatedly sent and received, thereby achieving PUSCH retransmissions for two TRPs.

Description

Transmission method, reception method, terminal and base station of physical uplink shared channel

CROSS-REFERENCE TO RELATED APPLICATIONS

The present disclosure claims priority to Chinese Patent Application No. 202010998697.1 filed in China on Sep. 22, 2020, the entire contents of which are incorporated herein by reference.

technical field

The present disclosure relates to the field of mobile communication technologies, and in particular, to a transmission method, a reception method, a terminal and a base station of a physical uplink shared channel.

Background technique

In the related art, in the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) scheduling mode, the time domain resource information of the PUSCH is indicated by downlink control information (Downlink Control Information, DCI), specifically including the time slot offset K2 (slot offset K2), start symbol (Start symbol) and length (length), as shown in Figure 1. DCI indicates the hybrid automatic repeat request process number (HARQ process number) and the new data indication (New data indication). When the HARQ process number is the same and the NDI is not reversed, it means that retransmission data is scheduled. In addition, the number of repetitions of PUSCH pusch-AggregationFactor (2, 4, 8) is configured through radio resource control (Radio Resource Control, RRC) signaling, or when the DCI indicates PUSCH time domain resource information, the number of repetitions is indicated. In addition, a redundancy version (Redundancy version, RV) mode of the PUSCH is indicated through the DCI, and the specific value may be any of the following: 0231, 2310, 3102, and 1023. For example, the RV in FIG. 1 is "0231", indicating that the redundancy version modes of four adjacent PUSCHs are RV0, RV2, RV3, and RV1, respectively, and the meaning of "2310" is similar.

In the related art, when PUSCH sequential scheduling is performed, if the HARQ process numbers are the same, the DCI can only be sent after the previous PUSCH transmission to schedule the PUSCH with the same HARQ process number. Figure 2 shows an example of the above scheduling, in which both DCI-0 and DCI-1 schedule the PUSCH with the HARQ process number 1, and the next one that schedules the same HARQ process number is sent after the PUSCH transmission scheduled by DCI-0. DCI-1 for PUSCH.

The configuration mode of the transmit power control (Transmit Power Control, TPC) command in the PUSCH power control is: determine the closed-loop power control adjustment amount of the PUSCH through the TPC command (TPC command) indicated in the DCI. Among them, DCI 0_0/DCI 0_1 can indicate TPC command. DCI 2_2 can indicate a TPC group command (group common TPC), which includes multiple block numbers (block), such as block number 1, block number 2, ..., block number N, each block number contains 3 bits, which are 1 respectively Bit of closeloop and 2-bit TPC, in addition, the RRC configuration tpc-Index indicates which block is used to receive this DCI. When a terminal (UE) receives multiple DCIs indicating TPCs, the UE will sum the values indicated by the TPCs in the multiple received DCIs and apply them to the closed-loop power control of the PUSCH when sending the PUSCH.

As shown in Figure 3, in the Multi-TRP scenario, the control resource sets (Control Resource Set, CORESET) of the two TRPs are associated with different control resource set pool indices (coresetPoolIndex), and the terminal determines the CORESET by judging the The associated coresetPoolIndex can determine which TRP the PDCCH carried on the CORESET comes from.

For example, TRP0 is associated with coresetPoolIndex=0, and TRP1 is associated with coresetPoolIndex=1. The terminal sends one PUSCH, and both TRPs can be received.

In order to improve the reliability of PUSCH in Multi-TRP scenarios, consider introducing PUSCH repetition transmission (PUSCH repetition). At present, the repeated transmission scheme in the related art does not have a specific implementation scheme for the repeated transmission of the PUSCH in the Multi-TRP scenario.

SUMMARY OF THE INVENTION

At least one embodiment of the present disclosure provides a method for transmitting a physical uplink shared channel, a method for receiving it, a terminal, and a base station, which can improve the reliability of channel transmission in a multi-transmitting-receiving-node (Multi-TRP) scenario.

According to one aspect of the present disclosure, at least one embodiment provides a method for transmitting a physical uplink shared channel, including:

The terminal repeatedly transmits the PUSCH scheduled by the first DCI and the second DCI.

In addition, according to at least one embodiment of the present disclosure, the first parameter indicated by the first DCI and the second DCI is the same, and the first parameter includes at least one of a redundancy version mode, a HARQ process number, and a new data indication .

In addition, according to at least one embodiment of the present disclosure, the first DCI schedules N PUSCH transmission occasions, and the second DCI schedules M PUSCH transmission occasions;

The mapping mode of the PUSCH transmission occasion includes a sequential mapping mode and/or a cyclic mapping mode.

In addition, according to at least one embodiment of the present disclosure, in the sequential mapping mode, the N times of PUSCH transmission opportunities scheduled by the first DCI are transmitted before or after the M times of PUSCH transmission opportunities scheduled by the second DCI ;

In the cyclic mapping mode, the PUSCH transmission opportunity scheduled by the first DCI and the PUSCH transmission opportunity scheduled by the second DCI are sequentially and alternately transmitted in the time domain.

In addition, according to at least one embodiment of the present disclosure, in the sequential mapping mode, the N times of PUSCH transmission opportunities scheduled by the first DCI are respectively located in consecutive N time slots; the M times scheduled by the second DCI The secondary PUSCH transmission opportunity is transmitted, which are respectively located in consecutive M time slots;

In the cyclic mapping mode, the N times of PUSCH transmission opportunities scheduled by the first DCI and the M times of PUSCH transmission opportunities scheduled by the second DCI are located in consecutive N+M time slots.

Furthermore, according to at least one embodiment of the present disclosure, the N is configured by the first DCI, MAC CE, or RRC message;

The M is configured by the second DCI, MAC CE or RRC message.

In addition, according to at least one embodiment of the present disclosure, the repeating transmission of the PUSCH scheduled by the first DCI and the second DCI includes:

Taking the PUSCH transmission occasions scheduled by the first DCI and the second DCI as a set, a redundancy version corresponding to each PUSCH transmission occasion in the set is determined.

In addition, according to at least one embodiment of the present disclosure, the determining of the redundancy version corresponding to each PUSCH transmission occasion in the set includes:

According to the position of each PUSCH transmission occasion in the set, the redundancy version corresponding to the PUSCH transmission occasion is determined from the redundancy version mode.

For the i-th PUSCH transmission opportunity scheduled by the first DCI, a first remainder is obtained by taking the modulo Z operation on i; according to the first remainder, a redundancy version corresponding to the PUSCH transmission opportunity is selected from the redundancy version mode ;

For the jth PUSCH transmission opportunity scheduled by the second DCI, a second remainder is obtained by taking the modulo Z operation on (N+j); according to the second remainder, the PUSCH transmission is selected from the redundancy version mode The redundant version corresponding to the timing;

Wherein, the value range of the i is 0～N-1, and the value range of the j is 0～M-1.

In addition, according to at least one embodiment of the present disclosure, when the first PUSCH transmission opportunity scheduled by the first DCI is located before the first PUSCH transmission opportunity scheduled by the second DCI, the first DCI and the second DCI scheduled PUSCH for repeated transmissions, including:

When N=M: for the i-th PUSCH transmission opportunity scheduled by the first DCI, the third remainder is obtained by taking the modulo Z operation on 2i; according to the third remainder, the PUSCH transmission is selected from the redundancy version mode The redundancy version corresponding to the timing; for the jth PUSCH transmission timing scheduled by the second DCI, the fourth remainder is obtained by taking the modulo Z operation on 2j+1; according to the fourth remainder, from the redundancy version mode Selecting the redundancy version corresponding to the PUSCH transmission opportunity;

When N>M: For the i-th PUSCH transmission opportunity scheduled by the first DCI, take the modulo Z operation on 2i when i is less than or equal to M-1, and take the modulo Z on i+M when i is greater than M-1 The operation obtains a fifth remainder; according to the fifth remainder, a redundancy version corresponding to the PUSCH transmission opportunity is selected from the redundancy version mode; for the jth PUSCH transmission opportunity scheduled by the second DCI, for 2j +1 modulo Z operation to obtain the sixth remainder; according to the sixth remainder, select the redundancy version corresponding to the PUSCH transmission occasion from the redundancy version mode;

When N<M: for the i-th PUSCH transmission opportunity scheduled by the first DCI, take the modulo Z operation on 2i to obtain the seventh remainder; according to the seventh remainder, select the The redundancy version corresponding to the PUSCH transmission opportunity; for the jth PUSCH transmission opportunity scheduled by the second DCI, take the modulo Z operation on 2j when j is less than or equal to N-1, and perform the operation on j+N when j is greater than N-1 The eighth remainder is obtained by taking the modulo Z operation; according to the eighth remainder, the redundancy version corresponding to the PUSCH transmission opportunity is selected from the redundancy version mode;

For the kth PUSCH transmission opportunity in the set, the ninth remainder is obtained by taking the modulo Z operation on k; according to the ninth remainder, the redundancy version corresponding to the PUSCH transmission opportunity is selected from the redundancy version mode ;

Wherein, the value range of the k is 0˜N+M−1.

In addition, according to at least one embodiment of the present disclosure, it also includes:

A first DCI is received, and a second DCI is received, wherein the reception timing of the second DCI is earlier than the PUSCH transmission timing scheduled by the first DCI.

In addition, according to at least one embodiment of the present disclosure, high-level parameter control resource set pool indices associated with CORESETs carrying the first DCI and the second DCI are different.

On the PUSCH transmission opportunity scheduled by the first DCI or the second DCI, power control adjustment is performed on the PUSCH transmission opportunity according to the transmission power control command indicated in the corresponding DCI.

In addition, according to at least one embodiment of the present disclosure, the transmission power control command indicated by the DCI with the associated control resource set pool index value of 0 is used for the transmission power control command indicated by the associated control resource set pool index value of 0. Closed-loop power control adjustment of PUSCH scheduled by DCI;

The transmission power control command indicated by the DCI with the associated control resource set pool index value of 1 is used for closed-loop power control adjustment of the PUSCH scheduled by the DCI with the associated control resource set pool index value of 1.

In addition, according to at least one embodiment of the present disclosure, the default spatial information and/or the default pathloss reference signal of the PUSCH transmission occasion scheduled by the first DCI or the second DCI refers to the control of the minimum ID in the corresponding control resource set The reference signal of the quasi-co-located type QCL-TypeD or QCL hypothesis of the resource set.

In addition, according to at least one embodiment of the present disclosure, the default spatial information and/or the default path loss reference signal of the PUSCH transmission occasion scheduled by the DCI with the associated control resource set pool index value of 0, the reference associated value is The reference signal of the QCL-TypeD or QCL hypothesis with the smallest ID in the control resource set of the control resource set pool index of 0;

The default spatial information and/or the default path loss reference signal of the PUSCH transmission timing scheduled by the DCI with the associated control resource set pool index of 1, refer to the control resource set associated with the control resource set pool index of 1. The minimum ID of the QCL-TypeD or QCL hypothetical reference signal.

According to another aspect of the present disclosure, at least one embodiment provides a method for receiving a physical uplink shared channel, including:

The base station receives the PUSCH repeatedly transmitted by the terminal, wherein the repeatedly transmitted PUSCH is scheduled by the first DCI and the second DCI.

Furthermore, according to at least one embodiment of the present disclosure, the N is configured by the first DCI, MAC CE or RRC message; the M is configured by the second DCI, MAC CE or RRC message.

In addition, according to at least one embodiment of the present disclosure, the base station receiving the PUSCH repeatedly transmitted by the terminal includes:

In addition, according to at least one embodiment of the present disclosure, when the first PUSCH transmission opportunity scheduled by the first DCI is located before the first PUSCH transmission opportunity scheduled by the second DCI, the base station receives the PUSCH repeatedly transmitted by the terminal, including:

In addition, according to at least one embodiment of the present disclosure, the base station receives the PUSCH repeatedly transmitted by the terminal, including:

Wherein, the value range of the k is 0˜N+M−1.

A first DCI is sent, and a second DCI is sent, wherein the transmission timing of the second DCI is earlier than the PUSCH transmission timing scheduled by the first DCI.

In addition, according to at least one embodiment of the present disclosure, the high-level parameter control resource set pool indices associated with the CORESETs carrying the first DCI and the second DCI are different.

The default spatial information and/or the default path loss reference signal of the PUSCH transmission opportunity scheduled by the DCI whose associated control resource set pool index is 1, refer to the control resource set associated with the control resource set pool index whose value is 1 The minimum ID of the QCL-TypeD or QCL hypothetical reference signal.

According to another aspect of the present disclosure, at least one embodiment provides a terminal, comprising:

a transceiver, configured to repeatedly transmit the PUSCH scheduled by the first DCI and the second DCI.

A transmission module, configured to repeatedly transmit the PUSCH scheduled by the first DCI and the second DCI.

According to another aspect of the present disclosure, at least one embodiment provides a terminal including: a processor, a memory, and a program stored on the memory and executable on the processor, the program being processed by the processor The steps of the method as described above are implemented when the server executes.

According to another aspect of the present disclosure, at least one embodiment provides a base station, comprising:

The transceiver is configured to receive the PUSCH repeatedly transmitted by the terminal, wherein the repeatedly transmitted PUSCH is scheduled by the first DCI and the second DCI.

A receiving module, configured to receive the PUSCH repeatedly transmitted by the terminal, wherein the repeatedly transmitted PUSCH is scheduled by the first DCI and the second DCI.

According to another aspect of the present disclosure, at least one embodiment provides a base station, comprising: a processor, a memory, and a program stored on the memory and executable on the processor, the program being processed by the processor The steps of the method as described above are implemented when the server executes.

According to another aspect of the present disclosure, at least one embodiment provides a computer-readable storage medium, where a program is stored on the computer-readable storage medium, and when the program is executed by a processor, the above-mentioned method is implemented. step.

Compared with the related art, the transmission method, reception method, terminal, and base station of the physical uplink shared channel provided by the embodiments of the present disclosure can repeatedly send and receive the PUSCH scheduled by the first DCI and the second DCI in the Multi-TRP scenario. Receiving, realizes the repeated transmission of the PUSCH channel of 2 TRPs. In addition, the embodiment of the present disclosure also provides a specific method for determining the RV version, time domain location, TPC command, default spatial and default pathloss RS when the PUSCH is repeatedly transmitted in a Multi-TRP scenario, which can improve the reliability of PUSCH transmission.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are for purposes of illustrating preferred embodiments only and are not to be considered limiting of the present disclosure. Also, the same components are denoted by the same reference numerals throughout the drawings. In the attached image:

1 is a schematic diagram of PUSCH scheduling in the related art;

Fig. 2 is a kind of schematic diagram of the PUSCH sequence scheduling of the related art;

Fig. 3 is the transmission schematic diagram of the Multi-TRP of the related art;

FIG. 4 is a schematic diagram of an application scenario of an embodiment of the present disclosure;

5 is a schematic flowchart of a method for transmitting a physical uplink shared channel according to an embodiment of the present disclosure;

FIG. 6 is an exemplary diagram of PUSCH repeated transmission according to an embodiment of the present disclosure;

FIG. 7 is another exemplary diagram of PUSCH repeated transmission according to an embodiment of the present disclosure;

FIG. 8 is another exemplary diagram of PUSCH repeated transmission according to an embodiment of the present disclosure;

9 is a schematic flowchart of a method for receiving a physical uplink shared channel according to an embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure;

FIG. 11 is another schematic structural diagram of a terminal provided by an embodiment of the present disclosure;

FIG. 12 is a schematic structural diagram of a base station according to an embodiment of the present disclosure;

FIG. 13 is another schematic structural diagram of a base station according to an embodiment of the present disclosure.

detailed description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be more thoroughly understood, and will fully convey the scope of the present disclosure to those skilled in the art.

The terms "first", "second", etc. in the description and claims of the present disclosure are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the disclosure described herein can, for example, be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having" and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those expressly listed Rather, those steps or units may include other steps or units not expressly listed or inherent to these processes, methods, products or devices. In the description and the claims, "and/or" means at least one of the connected objects.

The techniques described herein are not limited to NR systems and Long Time Evolution (LTE)/LTE-Advanced (LTE-A) systems, and may also be used in various wireless communication systems such as Code Division Multiple Access (Code Division Multiple Access, CDMA), Time Division Multiple Access (Time Division Multiple Access, TDMA), Frequency Division Multiple Access (Frequency Division Multiple Access, FDMA), Orthogonal Frequency Division Multiple Access (Orthogonal Frequency Division Multiple Access, OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" are often used interchangeably. A CDMA system may implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA). UTRA includes Wideband Code Division Multiple Access (WCDMA) and other CDMA variants. A TDMA system may implement a radio technology such as the Global System for Mobile Communication (GSM). OFDMA systems can implement radios such as UltraMobile Broadband (UMB), Evolution-UTRA (E-UTRA), IEEE 802.21 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, etc. Technology. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). LTE and higher LTE (eg LTE-A) are new UMTS releases that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2). The techniques described herein may be used for both the systems and radio technologies mentioned above, as well as for other systems and radio technologies. However, the following description describes an NR system for example purposes, and NR terminology is used in much of the following description, although these techniques are also applicable to applications other than NR system applications.

The following description provides examples and does not limit the scope, applicability, or configuration set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the methods described may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to some examples may be combined in other examples.

Referring to FIG. 4, FIG. 4 shows a block diagram of a wireless communication system to which the embodiments of the present disclosure can be applied. The wireless communication system includes a terminal 11 and a network device 12 . The terminal 11 may also be referred to as a user terminal or user equipment (UE, User Equipment), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a personal digital assistant (Personal Digital Assistant) , PDA), mobile Internet Device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device and other terminal-side devices, it should be noted that, in the embodiments of the present disclosure, the specific type of the terminal 11 is not limited . The network device 12 may be a base station and/or a core network element, wherein the above-mentioned base station may be a base station of 5G and later versions (for example: gNB, 5G NR NB, etc.), or a base station in other communication systems (for example: eNB, WLAN, etc.) access point, or other access point, etc.), where a base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a basic Service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi Node or As long as the same technical effect is achieved by any other suitable term in the field, the base station is not limited to a specific technical vocabulary. It should be noted that in the embodiments of the present disclosure, only the base station in the NR system is used as an example, but The specific type of the base station is not limited.

The base stations may communicate with the terminal 11 under the control of a base station controller, which in various examples may be part of a core network or some base station. Some base stations may communicate control information or user data with the core network through the backhaul. In some examples, some of these base stations may communicate with each other directly or indirectly via backhaul links, which may be wired or wireless communication links. Wireless communication systems may support operation on multiple carriers (waveform signals of different frequencies). A multi-carrier transmitter can transmit modulated signals on these multiple carriers simultaneously. For example, each communication link may be a multi-carrier signal modulated according to various radio technologies. Each modulated signal may be sent on a different carrier and may carry control information (eg, reference signals, control channels, etc.), overhead information, data, and the like.

The base station may communicate wirelessly with the terminal 11 via one or more access point antennas. Each base station can provide communication coverage for its respective coverage area. The coverage area of an access point may be divided into sectors that make up only a portion of the coverage area. A wireless communication system may include different types of base stations (eg, macro base stations, micro base stations, or pico base stations). The base stations may also utilize different radio technologies, such as cellular or WLAN radio access technologies. The base stations may be associated with the same or different access networks or operator deployments. The coverage areas of different base stations (including coverage areas of base stations of the same or different types, coverage areas utilizing the same or different radio technologies, or coverage areas belonging to the same or different access networks) may overlap.

A communication link in a wireless communication system may include an uplink for carrying uplink (UL) transmissions (eg, from terminal 11 to network device 12), or for carrying downlink (DL) Downlink of transmission (eg, from network device 12 to terminal 11). UL transmissions may also be referred to as reverse link transmissions, and DL transmissions may also be referred to as forward link transmissions. Downlink transmissions may be performed using licensed bands, unlicensed bands, or both. Similarly, uplink transmissions may be performed using licensed frequency bands, unlicensed frequency bands, or both.

As described in the background art, the related art does not have a specific implementation solution for PUSCH repeated transmission in a Multi-TRP scenario. For example, there is no specific description on how to schedule one PUSCH through two different DCIs for repeated transmission, and how to determine the redundancy version (Redundancy version, RV) mode, transmission time domain position, and power control parameters when the PUSCH is repeatedly transmitted.

In order to solve at least one of the above problems, the embodiments of the present disclosure provide a method for transmitting a physical uplink shared channel (PUSCH), which realizes the repeated transmission of the PUSCH channels of two TRPs. The RV mode, transmission time domain position, and power control parameters during repeated transmission provide specific implementation solutions.

Referring to FIG. 5 , the method for transmitting the physical uplink shared channel provided by the embodiment of the present disclosure, when applied to the terminal side, includes:

Step 51, the terminal repeatedly transmits the PUSCH scheduled by the first DCI and the second DCI.

Here, the first parameters indicated by the first DCI and the second DCI are the same, and the first parameters include at least one of a redundancy version mode, a HARQ process number, and a new data indication.

Through the above steps, the embodiment of the present disclosure repeatedly transmits the PUSCH scheduled by the first DCI and the second DCI, and realizes the repeated transmission of the PUSCH channels of two TRPs.

Before the above step 51, the terminal may also receive the first DCI and receive the second DCI.

Preferably, the high-level parameter control resource set pool indices associated with the CORESETs carrying the first DCI and the second DCI are different. That is to say, the first DCI and the second DCI are associated with different control resource set pool indices (coresetPoolIndex).

Specifically, in the embodiment of the present disclosure, the PUSCH transmission occasions scheduled by the first DCI and the second DCI may be regarded as a set, and then the redundancy version corresponding to each PUSCH transmission occasion in the set is determined. Further, according to the determined redundancy version corresponding to each PUSCH transmission occasion, repeated transmission of the PUSCH may be performed on each PUSCH transmission occasion.

When determining the redundancy version corresponding to a certain PUSCH transmission occasion, specifically according to the position of the PUSCH transmission occasion in the set, the redundancy version corresponding to the PUSCH transmission occasion is determined from the redundancy version mode. Here, the redundancy version mode is indicated in the first DCI or the second DCI. Preferably, the redundancy version modes indicated by the first DCI and the second DCI in the embodiment of the present disclosure are the same.

For example, when the redundancy version mode is 0231, the redundancy version corresponding to the first PUSCH transmission set in the set is RV0, the redundancy version corresponding to the second PUSCH transmission set in the set is RV2, and the The redundancy version corresponding to the third PUSCH transmission set in the set is RV3, the redundancy version corresponding to the fourth PUSCH transmission set in the set is RV1, and so on.

In the embodiment of the present disclosure, it is assumed that the first DCI schedules N PUSCH transmission occasions, and the second DCI schedules M PUSCH transmission occasions; the redundancy version mode includes Z redundancy versions. For example, the redundancy version mode is 0231, which includes 4 redundancy versions, which are RV0, RV2, RV3, and RV1 in sequence. The N may be configured by the first DCI, Medium Access Control (Medium Access Control, MAC) control element (Control Element, CE) or Radio Resource Control (Radio Resource Control, RRC) message; the M may be The second DCI, MAC CE or RRC message is configured.

The mapping modes of the PUSCH transmission occasions include a sequential mapping mode and a cyclic mapping mode. In this embodiment of the present disclosure, the base station may pre-configure the terminal to use the sequential mapping mode or the cyclic mapping mode, for example, the base station may configure the above modes through an RRC message. The terminal determines the specific mode to be adopted according to the configuration message sent by the base station.

Wherein, in the sequential mapping mode, the N times of PUSCH transmission opportunities scheduled by the first DCI are transmitted before the M times of PUSCH transmission opportunities scheduled by the second DCI. Certainly, the N times of PUSCH transmission occasions scheduled by the first DCI may also be transmitted after the M times of PUSCH transmission occasions scheduled by the second DCI. That is to say, in the sequential mapping mode, the PUSCHs scheduled by the two DCIs are transmitted successively.

Preferably, in the sequential mapping mode, the N times of PUSCH transmission opportunities scheduled by the first DCI are respectively located in consecutive N time slots; the M times of PUSCH transmission opportunities scheduled by the second DCI are respectively located in in consecutive M time slots. In the sequential mapping mode, the two DCIs schedule the PUSCH for repeated transmission respectively, and the PUSCH scheduled by each DCI is repeated for N or M consecutive time slots, where N and M depend on the RRC message or the DCI configuration.

In the cyclic mapping mode, the PUSCH transmission opportunity scheduled by the first DCI and the PUSCH transmission opportunity scheduled by the second DCI are sequentially and alternately transmitted in the time domain. That is, after the PUSCH transmission opportunity scheduled by the first DCI: if the PUSCH transmission opportunity scheduled by the second DCI still exists, the PUSCH scheduled by the second DCI is transmitted; When the PUSCH transmission opportunity no longer exists, the PUSCH scheduled by the first DCI continues to be transmitted until all the PUSCHs scheduled by the first DCI are transmitted. Similarly, after the second DCI-scheduled PUSCH transmission opportunity: if the first DCI-scheduled PUSCH transmission opportunity still exists, transmit the first DCI-scheduled PUSCH; if the first DCI-scheduled PUSCH transmission opportunity still exists; If the transmission opportunity no longer exists, continue to transmit the PUSCH scheduled by the second DCI until all the PUSCHs scheduled by the second DCI are transmitted.

Preferably, in the cyclic mapping mode, the N times of PUSCH transmission opportunities scheduled by the first DCI and the M times of PUSCH transmission opportunities scheduled by the second DCI are respectively located in consecutive N+M time slots. In the cyclic mapping mode, the two DCIs schedule the PUSCH for repeated transmission respectively, and the PUSCH scheduled by each DCI is repeatedly transmitted every time slot, for a total of N or M times, where N and M depend on the RRC message or DCI. configuration.

The following provides several ways for determining the PUSCH redundancy version that can be used in the embodiments of the present disclosure. In the following manners, the redundancy version mode, HARQ process number and new data indication indicated by the first DCI and the second DCI are the same. It is assumed that the redundancy version mode includes 4 redundancy versions, that is, Z=4.

Way 1:

In this way 1, the mapping mode of the PUSCH transmission occasion is a sequential mapping mode. When determining the redundancy version corresponding to the PUSCH transmission occasion from the redundancy version mode according to the position of each PUSCH transmission occasion in the set:

For example, in the RV version determination method corresponding to the N times of PUSCH transmission occasions scheduled by the first DCI, the RV of the nth PUSCH transmission occasion depends on nmod4. Wherein, nmod4=0 corresponds to the first one of the RV versions indicated by the first DCI, nmod4=1 corresponds to the second one of the RV versions indicated by the first DCI, and nmod4=2 corresponds to the first one of the RV versions indicated by the first DCI Three, nmod4=3 corresponds to the fourth one of the RV versions indicated by the first DCI.

The manner of determining the RV version corresponding to the M times of PUSCH transmission occasions scheduled by the second DCI depends on the N times of PUSCH scheduled by the first DCI. The RV of the mth PUSCH transmission occasion depends on (m+N)mod4. Wherein, (m+N)mod4=0 corresponds to the first one of the RV versions indicated by the first or second DCI, and (m+N)mod4=1 corresponds to the second one of the RV versions indicated by the first or second DCI (m+N)mod4=2 corresponds to the third of the RV versions indicated by the first or second DCI, and (m+N)mod4=3 corresponds to the fourth of the RV versions indicated by the first or second DCI indivual.

Here, N and M depend on the RRC message or DCI configuration, and N and M may be the same. For example, if RRC configures one preset parameter X, then N=M=X or N=M=X/2. Or the first DCI indicates N, and the second DCI indicates M. The value of n is 0,1,2,…,N-1, and the value of m is 0,1,2,…,M-1.

Example 1: As shown in FIG. 6 , the RV versions indicated in the first DCI and the second DCI are both {0231}, and the RRC configuration is X=4. The first DCI-scheduled PUSCH is repeatedly transmitted N/2=2 times, and the second DCI-scheduled PUSCH is repeatedly transmitted N/2=2 times. Then the RV version of the 0th PUSCH transmission occasion scheduled by the first DCI is 0, the RV version of the first PUSCH transmission occasion of the first DCI scheduling is 2; the RV version of the 0th PUSCH transmission occasion of the second DCI scheduling is 3. The RV version of the first PUSCH transmission opportunity scheduled by the second DCI is 1.

Example 2: The RV versions indicated in the first and second DCI are both {0231}, the first DCI configuration is N=2, and the second DCI configuration is M=4. The first DCI-scheduled PUSCH is repeatedly transmitted N=2 times, and the second DCI-scheduled PUSCH is repeatedly transmitted M=4 times. Then the RV version of the 0th PUSCH transmission occasion scheduled by the first DCI is 0, the RV version of the first PUSCH transmission occasion of the first DCI scheduling is 2; the RV version of the 0th PUSCH transmission occasion of the second DCI scheduling is 3. The RV version of the first PUSCH transmission occasion scheduled by the second DCI is 1, the RV version of the second PUSCH transmission occasion of the second DCI scheduling is 0, and the RV version of the third PUSCH transmission occasion of the second DCI scheduling is 2.

Way 2:

In this way 2, the mapping mode of the PUSCH transmission opportunity is a cyclic mapping mode. It is assumed that the first PUSCH transmission opportunity scheduled by the first DCI is located before the first PUSCH transmission opportunity scheduled by the second DCI. When determining the redundancy version corresponding to the PUSCH transmission occasion from the redundancy version mode according to the position of each PUSCH transmission occasion in the set:

Here, N and M may depend on the RRC message or DCI configuration, and N and M may be the same. For example, if RRC configures one preset parameter X, then N=M=X or N=M=X/2. Or the first DCI indicates N, and the second DCI indicates M. The value of n is 0,1,2,…,N-1, and the value of m is 0,1,2,…,M-1.

When M=N,

a) The RV version determination method corresponding to the N PUSCH transmission occasions scheduled by the first DCI: the RV of the nth PUSCH transmission occasion depends on (2*n)mod4, and (2*n)mod4=0 corresponds to the value indicated by the first DCI The first of the RV versions, (2*n)mod4=1 corresponds to the second of the RV versions indicated by the first DCI, and (2*n)mod4=2 corresponds to the third of the RV versions indicated by the first DCI , (2*n)mod4=3 corresponds to the fourth one of the RV versions indicated by the first DCI.

b) The RV version determination method corresponding to the M times of PUSCH transmission opportunities scheduled by the second DCI depends on the N times of PUSCH scheduled by the first DCI: the RV of the mth PUSCH transmission opportunity depends on (2*m+1)mod4, (2 *m+1)mod4=0 corresponds to the first of the RV versions indicated by the first or second DCI, and (2*m+1)mod4=1 corresponds to the second of the RV versions indicated by the first or second DCI (2*m+1)mod4=2 corresponds to the third RV version indicated by the first or second DCI, (2*m+1)mod4=3 corresponds to the RV version indicated by the first or second DCI the fourth of the .

When M<N,

a) The RV version determination method corresponding to the N times of PUSCH transmission opportunities scheduled by the first DCI, when n≤(M-1), the RV of the nth PUSCH transmission opportunity depends on (2*n)mod4: (2*n )mod4=0 corresponds to the first of the RV versions indicated by the first DCI, (2*n)mod4=1 corresponds to the second of the RV versions indicated by the first DCI, and (2*n)mod4=2 corresponds to the first The third one of the RV versions indicated by a DCI, (2*n)mod4=3 corresponds to the fourth one of the RV versions indicated by the first DCI. When n>(M-1), the RV of the nth PUSCH transmission opportunity depends on (n+M)mod4: (n+M)mod4=0 corresponds to the first one of the RV versions indicated by the first DCI, ( n+M)mod4=1 corresponds to the second one of the RV versions indicated by the first DCI, (n+M)mod4=2 corresponds to the third one of the RV versions indicated by the first DCI, (n+M)mod4= 3 corresponds to the fourth of the RV versions indicated by the first DCI.

b) The RV version determination method corresponding to the M times of PUSCH transmission opportunities scheduled by the second DCI depends on the N times of PUSCH scheduled by the first DCI, and the RV of the mth PUSCH transmission opportunity depends on (2*m+1)mod4, (2 *m+1)mod4=0 corresponds to the first of the RV versions indicated by the first or second DCI, and (2*m+1)mod4=1 corresponds to the second of the RV versions indicated by the first or second DCI (2*m+1)mod4=2 corresponds to the third RV version indicated by the first or second DCI, (2*m+1)mod4=3 corresponds to the RV version indicated by the first or second DCI the fourth of the .

When M>N,

a) The RV version determination method corresponding to the N times of PUSCH transmission occasions scheduled by the first DCI, the RV of the nth PUSCH transmission occasion depends on (2*n)mod4: (2*n)mod4=0 corresponds to the value indicated by the first DCI The first of the RV versions, (2*n)mod4=1 corresponds to the second of the RV versions indicated by the first DCI, and (2*n)mod4=2 corresponds to the third of the RV versions indicated by the first DCI , (2*n)mod4=3 corresponds to the fourth one of the RV versions indicated by the first DCI.

b) The RV version determination method corresponding to the M times of PUSCH transmission opportunities scheduled by the second DCI depends on the N times of PUSCH scheduled by the first DCI. When m≤(N-1), the RV of the mth PUSCH transmission opportunity depends on ( 2*m+1)mod4, (2*m+1)mod4=0 corresponds to the first of the RV versions indicated by the first or second DCI, and (2*m+1)mod4=1 corresponds to the first or second The second one of the RV versions indicated by the two DCIs, (2*m+1)mod4=2 corresponds to the third one of the RV versions indicated by the first or second DCI, and (2*m+1)mod4=3 corresponds to The fourth of the RV versions indicated by the first or second DCI. When m>(N-1), the RV of the nth PUSCH transmission opportunity depends on (m+N)mod4: (m+N)mod4=0 corresponds to the first one of the RV versions indicated by the first DCI, ( m+N)mod4=1 corresponds to the second RV version indicated by the first DCI, (m+N)mod4=2 corresponds to the third RV version indicated by the first DCI, (m+N)mod4= 3 corresponds to the fourth of the RV versions indicated by the first DCI.

Example 3: As shown in FIG. 7 , the RV versions indicated in the first and second DCIs are both {0231}, and the RRC configuration X=4. The first DCI-scheduled PUSCH is repeatedly transmitted N=X/2=2 times, and the second DCI-scheduled PUSCH is repeatedly transmitted M=X/2=2 times. Then the RV version of the 0th PUSCH transmission occasion scheduled by the first DCI is 0, the RV version of the 0th PUSCH transmission occasion of the second DCI scheduling is 2, and the RV version of the 1st PUSCH transmission occasion of the first DCI scheduling is 3. The RV version of the first PUSCH transmission opportunity scheduled by the second DCI is 1.

Example 4: The RV versions indicated in the first and second DCI are both {0231}, the first DCI configuration is N=2, and the second DCI configuration is M=4. The first DCI-scheduled PUSCH is repeatedly transmitted N=2 times, and the second DCI-scheduled PUSCH is repeatedly transmitted M=4 times. Then the RV version of the 0th PUSCH transmission occasion scheduled by the first DCI is 0, the RV version of the 0th PUSCH transmission occasion of the second DCI scheduling is 2, and the RV version of the 1st PUSCH transmission occasion of the first DCI scheduling is 3. The RV version of the first PUSCH transmission occasion scheduled by the second DCI is 1, the RV version of the second PUSCH transmission occasion of the second DCI scheduling is 0, and the RV version of the third PUSCH transmission occasion of the second DCI scheduling is 2.

Way 3:

In the third mode, the mapping mode of the PUSCH transmission opportunity is a sequential mapping mode or a cyclic mapping mode. When determining the redundancy version corresponding to the PUSCH transmission occasion from the redundancy version mode according to the position of each PUSCH transmission occasion in the set:

Wherein, the value range of the k is 0˜N+M−1.

Here, as shown in FIG. 8 , the RV versions are mapped sequentially according to the time domain positions of the PUSCH transmission occasions scheduled by two DCIs. For example, the RV of the nth PUSCH depends on nmod4, and nmod4=0 corresponds to the first one of the RV versions indicated by the DCI. nmod4=1 corresponds to the second of the RV versions indicated by the DCI, nmod4=2 corresponds to the third of the RV versions indicated by the DCI, and nmod4=3 corresponds to the fourth of the RV versions indicated by the DCI. In Figure 8, the upper row is a sequential mapping mode, and the lower row is a cyclic mapping mode.

Here, the value of n is 0, 1, 2, ..., N+M-1, N and M depend on the RRC message or DCI configuration, and N and M can be the same. For example, the RRC message configures one parameter X, then N=M=X or N=M=X/2. Or the first DCI indicates N, and the second DCI indicates M.

In the sequential mapping mode, the embodiment of the present disclosure allows receiving a PUSCH transmission of the same HARQ process number scheduled by the second DCI when the PUSCH scheduled by the first DCI has not been transmitted yet. That is, before the above step 51, the terminal may further receive the first DCI and receive the second DCI, where the reception timing of the second DCI is earlier than the PUSCH transmission timing scheduled by the first DCI.

Optionally, in the embodiment of the present disclosure, the terminal performs a closed-loop power control command on the PUSCH transmission opportunity according to the transmission power control command indicated in the corresponding DCI at the PUSCH transmission opportunity scheduled by the first DCI or the second DCI. Control adjustment.

Specifically, the transmission power control command indicated by the DCI with the associated control resource set pool index value of 0 is used for the closed loop of the PUSCH scheduled by the DCI with the associated control resource set pool index value of 0 Power control adjustment. That is, the TPC command indicated in the DCI associated with coresetPoolIndex=0 is used for closed-loop power control adjustment of the PUSCH scheduled by the DCI associated with coresetPoolIndex=0.

The transmission power control command indicated by the DCI with the associated control resource set pool index value of 1 is used for closed-loop power control adjustment of the PUSCH scheduled by the DCI with the associated control resource set pool index value of 1. That is, the TPC command indicated in the DCI associated with coresetPoolIndex=1 is used for closed-loop power control adjustment of the PUSCH scheduled by the DCI associated with coresetPoolIndex=1.

Optionally, in this embodiment of the present disclosure, the default spatial information and/or the default path loss reference signal of the PUSCH transmission timing scheduled by the first DCI or the second DCI refers to the control resource with the smallest ID in the corresponding control resource set. The quasi-co-located type of the set (QCL-TypeD) or the reference signal of the QCL hypothesis.

Specifically, the default spatial information and/or the default path loss reference signal of the PUSCH transmission opportunity scheduled by the DCI whose value of the associated control resource set pool index is 0 refers to the associated control resource set pool index whose value is 0. The reference signal of the QCL-TypeD or QCL hypothesis with the smallest ID in the control resource set. That is, the default spatial and default Pathloss RSs of the DCI-scheduled PUSCH associated with coresetPoolIndex=0 refer to the QCL-TypeD or QCL hypothetical reference signal associated with the CORESET with the lowest ID number in the same coresetPoolIndex.

The default spatial information and/or the default path loss reference signal of the PUSCH transmission opportunity scheduled by the DCI whose associated control resource set pool index is 1, refer to the control resource set associated with the control resource set pool index whose value is 1 The minimum ID of the QCL-TypeD or QCL hypothetical reference signal. That is, the default spatial and default Pathloss RSs of the DCI-scheduled PUSCH associated with coresetPoolIndex=1 refer to the QCL-TypeD or QCL hypothetical reference signal associated with the CORESET with the lowest ID number in the same coresetPoolIndex.

It can be seen from the above that the above method provided by the embodiments of the present disclosure can determine the RV version, time domain location, TPC command, default spatial and default pathloss RS when PUSCH is repeatedly transmitted in the Multi-TRP scenario, which can improve the Reliability of PUSCH transmission.

The method for transmitting the physical uplink shared channel in the embodiment of the present disclosure has been described above from the terminal side, and is further described below from the base station side.

Referring to FIG. 9 , an embodiment of the present disclosure provides a method for receiving a physical uplink shared channel, which is applied to the base station side, including:

Step 91: The base station receives the PUSCH repeatedly transmitted by the terminal, wherein the repeatedly transmitted PUSCH is scheduled by the first DCI and the second DCI.

Through the above steps, the base station in the embodiment of the present disclosure can receive the PUSCH scheduled for repeated transmission by the first DCI and the second DCI, thereby realizing the reception of PUSCH channels of two TRPs.

Before the above step 91, the first DCI may also be received, and the second DCI may be received.

In this embodiment of the present disclosure, the first TRP and the second TRP may be regarded as a constituent unit of the base station.

Specifically, in the above step 91, the base station may take the PUSCH transmission opportunities scheduled by the first DCI and the second DCI as a set, and determine the redundancy version corresponding to each PUSCH transmission opportunity in the set; The redundancy version corresponding to each PUSCH transmission occasion receives the PUSCH repeatedly sent by the terminal on each PUSCH transmission occasion.

In the embodiment of the present disclosure, it is assumed that the first DCI schedules N PUSCH transmission occasions, and the second DCI schedules M PUSCH transmission occasions; the redundancy version mode includes Z redundancy versions. The N may be configured by the first DCI, MAC CE or RRC message; the M may be configured by the second DCI, MAC CE or RRC message.

Preferably, in the embodiment of the present disclosure, the mapping modes of the PUSCH transmission opportunities include a sequential mapping mode and a cyclic mapping mode; in the sequential mapping mode, the N times of PUSCH transmission opportunities scheduled by the first DCI are prior to or and then transmitted at M times of PUSCH transmission opportunities scheduled by the second DCI; in the cyclic mapping mode, the PUSCH transmission opportunities scheduled by the first DCI and the PUSCH transmission opportunities scheduled by the second DCI are sequentially in the time domain. Alternate transmission.

As a way of determining the redundancy version corresponding to the PUSCH transmission timing, it specifically includes:

For the i-th PUSCH transmission opportunity scheduled by the first DCI, a first remainder is obtained by taking the modulo Z operation on i; according to the first remainder, a redundancy version corresponding to the PUSCH transmission opportunity is selected from the redundancy version mode ; For the jth PUSCH transmission opportunity scheduled by the second DCI, take the modulo Z operation to (N+j) to obtain the second remainder; According to the second remainder, select this PUSCH from the redundancy version mode The redundancy version corresponding to the transmission opportunity; wherein, the value range of the i is 0～N-1, and the value range of the j is 0～M-1.

As another way of determining the redundancy version corresponding to the PUSCH transmission opportunity, it specifically includes:

As another method for determining the redundancy version corresponding to the PUSCH transmission opportunity, it specifically includes:

For the kth PUSCH transmission opportunity in the set, the ninth remainder is obtained by taking the modulo Z operation on k; according to the ninth remainder, the redundancy version corresponding to the PUSCH transmission opportunity is selected from the redundancy version mode ; wherein, the value range of the k is 0～N+M-1.

Before the above step 91, the base station may also send the first DCI and send the second DCI, wherein the sending timing of the second DCI is earlier than the PUSCH transmission timing scheduled by the first DCI.

Optionally, the default space information and/or the default path loss reference signal of the PUSCH transmission opportunity scheduled by the first DCI or the second DCI refer to the quasi-co-location type of the control resource set with the smallest ID in the corresponding control resource set Reference signal for QCL-TypeD or QCL hypothesis.

Specifically, the default spatial information and/or the default path loss reference signal of the PUSCH transmission opportunity scheduled by the DCI whose value of the associated control resource set pool index is 0 refers to the reference signal associated with the control resource set pool index whose value is 0. control the reference signal of the QCL-TypeD or QCL hypothesis with the smallest ID in the resource set;

Various methods of embodiments of the present disclosure have been described above. Apparatus for carrying out the above method will be further provided below.

Referring to FIG. 10, an embodiment of the present disclosure provides a terminal 100, including:

The transmission module 101 is configured to repeatedly transmit the PUSCH scheduled by the first DCI and the second DCI.

Optionally, the first parameter indicated by the first DCI and the second DCI is the same, and the first parameter includes at least one of a redundancy version mode, a HARQ process number, and a new data indication.

Optionally, the first DCI schedules N PUSCH transmission occasions, and the second DCI schedules M PUSCH transmission occasions;

Optionally, in the sequential mapping mode, the N times of PUSCH transmission opportunities scheduled by the first DCI are transmitted before or after the M times of PUSCH transmission opportunities scheduled by the second DCI;

Optionally, in the sequential mapping mode, the N times of PUSCH transmission opportunities scheduled by the first DCI are respectively located in consecutive N time slots; the M times of PUSCH transmission opportunities scheduled by the second DCI are transmitted, respectively. in consecutive M time slots;

Optionally, the N is configured by the first DCI, MAC CE or RRC message; the M is configured by the second DCI, MAC CE or RRC message.

Optionally, the transmission module is further configured to use the PUSCH transmission occasions scheduled by the first DCI and the second DCI as a set, and determine a redundancy version corresponding to each PUSCH transmission occasion in the set.

Optionally, the transmission module is further configured to determine the redundancy version corresponding to the PUSCH transmission occasion from the redundancy version mode according to the position of each PUSCH transmission occasion in the set.

Optionally, the transmission module is further used for:

The repeating transmission of the PUSCH scheduled by the first DCI and the second DCI includes:

Optionally, when the first PUSCH transmission opportunity scheduled by the first DCI is located before the first PUSCH transmission opportunity scheduled by the second DCI, the transmission module is further configured to:

Optionally, the transmission module is further used for:

Wherein, the value range of the k is 0˜N+M−1.

Optionally, the terminal further includes:

A receiving module, configured to receive a first DCI and receive a second DCI, wherein the reception timing of the second DCI is earlier than the PUSCH transmission timing scheduled by the first DCI.

Optionally, the high-level parameter control resource set pool indices associated with the CORESETs carrying the first DCI and the second DCI are different.

Optionally, also include:

A power control module, configured to perform closed-loop power control adjustment at the PUSCH transmission opportunity scheduled by the first DCI or the second DCI according to the transmission power control command indicated in the corresponding DCI.

Optionally, the transmission power control command indicated by the DCI with the associated control resource set pool index value of 0 is used for the closed loop of the PUSCH scheduled by the DCI with the associated control resource set pool index value of 0. power control adjustment;

Optionally, the default spatial information and/or the default path loss reference signal of the PUSCH transmission opportunity scheduled by the DCI whose value of the associated control resource set pool index is 0 is associated with the control resource set pool index whose value is 0. The reference signal of the QCL-TypeD or QCL hypothesis with the smallest ID in the control resource set;

It should be noted that the device in this embodiment is a device corresponding to the method shown in FIG. 5 above, and the implementation manners in the above-mentioned embodiments are all applicable to the embodiments of the device, and the same technical effect can also be achieved. The above-mentioned device provided by the embodiment of the present disclosure can realize all the method steps realized by the above-mentioned method embodiment, and can achieve the same technical effect. Repeat.

Please refer to FIG. 11 , which is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure. The terminal 1100 includes: a processor 1101 , a transceiver 1102 , a memory 1103 , a user interface 1104 and a bus interface.

In the embodiment of the present disclosure, the terminal 1100 further includes: a program stored on the memory 1103 and executable on the processor 1101 .

When the processor 1101 executes the program, the following steps are implemented: '

Repeat transmission of the PUSCH scheduled by the first DCI and the second DCI

It is understandable that, in the embodiment of the present disclosure, when the computer program is executed by the processor 1101, each process of the above-mentioned embodiment of the method for transmitting the physical uplink shared channel shown in FIG. 5 can be implemented, and the same technical effect can be achieved, which is: To avoid repetition, I will not repeat them here.

In FIG. 11 , the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1101 and various circuits of memory represented by memory 1103 linked together. The bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides the interface. Transceiver 1102 may be a number of elements, including a transmitter and a receiver, that provide a means for communicating with various other devices over a transmission medium. For different user equipments, the user interface 1104 may also be an interface capable of externally connecting the required equipment, and the connected equipment includes but is not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

The processor 1101 is responsible for managing the bus architecture and general processing, and the memory 1103 may store data used by the processor 1101 in performing operations.

It should be noted that the terminal in this embodiment is a terminal corresponding to the method shown in FIG. 7 , and the implementation manners in the above-mentioned embodiments are all applicable to the embodiments of the terminal, and the same technical effect can also be achieved. In the terminal, the transceiver 1102 and the memory 1103, as well as the transceiver 1102 and the processor 1101 can be communicated and connected through a bus interface, the function of the processor 1101 can also be realized by the transceiver 1102, and the function of the transceiver 1102 can also be realized by the processor 1101 realized. It should be noted here that the above-mentioned terminal provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, which is not the same as the method embodiments in this embodiment. The parts and beneficial effects will be described in detail.

In some embodiments of the present disclosure, a computer-readable storage medium is also provided, on which a program is stored, and when the program is executed by a processor, the following steps are implemented:

Repeat transmission of the PUSCH scheduled by the first DCI and the second DCI

When the program is executed by the processor, all the implementations in the above-mentioned transmission method of the physical uplink shared channel applied to the terminal side can be realized, and the same technical effect can be achieved.

An embodiment of the present disclosure provides a base station 120 shown in FIG. 12 , including:

The receiving module 121 is configured to receive the PUSCH repeatedly transmitted by the terminal, wherein the repeatedly transmitted PUSCH is scheduled by the first DCI and the second DCI.

Optionally, the receiving module is further configured to: take the PUSCH transmission occasions scheduled by the first DCI and the second DCI as a set, and determine the redundancy version corresponding to each PUSCH transmission occasion in the set.

Optionally, the receiving module is further configured to: according to the position of each PUSCH transmission occasion in the set, determine the redundancy version corresponding to the PUSCH transmission occasion from the redundancy version mode.

Optionally, the receiving module is also used for:

For the i-th PUSCH transmission opportunity scheduled by the first DCI, a first remainder is obtained by taking a modulo Z operation on i; according to the first remainder, a redundancy version corresponding to the PUSCH transmission opportunity is selected from the redundancy version mode ;

Optionally, when the first PUSCH transmission opportunity scheduled by the first DCI is located before the first PUSCH transmission opportunity scheduled by the second DCI, the receiving module is further configured to:

Optionally, the receiving module is further configured to:

Wherein, the value range of the k is 0˜N+M−1.

Optionally, the base station further includes:

A sending module, configured to send a first DCI and send a second DCI, wherein the sending timing of the second DCI is earlier than the PUSCH transmission timing scheduled by the first DCI.

It should be noted that the device in this embodiment is a device corresponding to the method shown in FIG. 9 above, and the implementation manners in the above embodiments are all applicable to the embodiments of the device, and the same technical effect can also be achieved. It should be noted here that the above-mentioned device provided by the embodiment of the present disclosure can realize all the method steps realized by the above-mentioned method embodiment, and can achieve the same technical effect, and the same as the method embodiment in this embodiment is not repeated here. The parts and beneficial effects will be described in detail.

Referring to FIG. 13, an embodiment of the present disclosure provides a schematic structural diagram of a base station 1300, including: a processor 1301, a transceiver 1302, a memory 1303, and a bus interface, wherein:

In this embodiment of the present disclosure, the base station 1300 further includes: a program stored on the memory 1303 and executable on the processor 1301, the program implements the following steps when executed by the processor 1301:

Receive the PUSCH repeatedly transmitted by the terminal, where the repeatedly transmitted PUSCH is scheduled by the first DCI and the second DCI

It is understandable that in the embodiment of the present disclosure, when the computer program is executed by the processor 1301, each process of the above-mentioned embodiment of the method for receiving the physical uplink shared channel shown in FIG. 9 can be implemented, and the same technical effect can be achieved, which is: To avoid repetition, I will not repeat them here.

In FIG. 13 , the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1301 and various circuits of memory represented by memory 1303 linked together. The bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein. The bus interface provides the interface. Transceiver 1302 may be a number of elements, including a transmitter and a receiver, that provide a means for communicating with various other devices over a transmission medium.

The processor 1301 is responsible for managing the bus architecture and general processing, and the memory 1303 may store data used by the processor 1301 when performing operations.

It should be noted that the terminal in this embodiment is a base station corresponding to the method shown in FIG. 8 above, and the implementation manners in the above embodiments are all applicable to this base station, and the same technical effect can also be achieved in the embodiments of . In the base station, the transceiver 1302 and the memory 1303, as well as the transceiver 1302 and the processor 1301 can be communicated and connected through a bus interface, the function of the processor 1301 can also be realized by the transceiver 1302, and the function of the transceiver 1302 can also be realized by the processor The device 1301 is implemented. It should be noted here that the above-mentioned base station provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment, and can achieve the same technical effect, which is not the same as the method embodiment in this embodiment. The parts and beneficial effects will be described in detail.

The PUSCH repeatedly transmitted by the terminal is received, wherein the repeatedly transmitted PUSCH is scheduled by the first DCI and the second DCI.

When the program is executed by the processor, all the implementations in the above-mentioned method for receiving the physical uplink shared channel applied to the base station can be implemented, and the same technical effect can be achieved. In order to avoid repetition, details are not described here.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this disclosure.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the embodiments provided in the present disclosure, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solutions of the embodiments of the present disclosure.

In addition, each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the present disclosure can be embodied in the form of software products in essence, or the parts that contribute to related technologies or the parts of the technical solutions. The computer software product is stored in a storage medium, including several The instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present disclosure. The aforementioned storage medium includes: a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk and other mediums that can store program codes.

It can be understood that the embodiments described in the embodiments of the present disclosure may be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, modules, units, sub-modules, sub-units, etc. can be implemented in one or more Application Specific Integrated Circuits (ASIC), Digital Signal Processing (DSP), digital signal processing equipment ( DSP Device, DSPD), Programmable Logic Device (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processor, controller, microcontroller, microprocessor, for in other electronic units or combinations thereof that perform the functions described in this disclosure.

The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited to this. should be included within the scope of protection of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

A method for transmitting a physical uplink shared channel, comprising:

The terminal repeatedly transmits the PUSCH scheduled by the first DCI and the second DCI.
The method of claim 1, wherein,

The first parameter indicated by the first DCI and the second DCI is the same, and the first parameter includes at least one of a redundancy version mode, a HARQ process number, and a new data indication.
The method of claim 1, wherein,

The first DCI schedules N PUSCH transmission occasions, and the second DCI schedules M PUSCH transmission occasions;

The mapping mode of the PUSCH transmission occasion includes a sequential mapping mode and/or a cyclic mapping mode.
The method of claim 3, wherein,

In the sequential mapping mode, the N times of PUSCH transmission opportunities scheduled by the first DCI are transmitted before or after the M times of PUSCH transmission opportunities scheduled by the second DCI;

In the cyclic mapping mode, the PUSCH transmission opportunity scheduled by the first DCI and the PUSCH transmission opportunity scheduled by the second DCI are sequentially and alternately transmitted in the time domain.
The method of claim 3, wherein,

In the sequential mapping mode, the N times of PUSCH transmission opportunities scheduled by the first DCI are respectively located in consecutive N time slots; the M times of PUSCH transmission opportunities scheduled by the second DCI are respectively located in consecutive M times. in time slots;

In the cyclic mapping mode, the N times of PUSCH transmission opportunities scheduled by the first DCI and the M times of PUSCH transmission opportunities scheduled by the second DCI are located in consecutive N+M time slots.
The method of claim 3, wherein,

the N is configured by the first DCI, MAC CE or RRC message;

The M is configured by the second DCI, MAC CE or RRC message.
The method of claim 1, wherein the repeating transmission of the PUSCH scheduled by the first DCI and the second DCI comprises:

Taking the PUSCH transmission occasions scheduled by the first DCI and the second DCI as a set, a redundancy version corresponding to each PUSCH transmission occasion in the set is determined.
The method of claim 7, wherein the determining the redundancy version corresponding to each PUSCH transmission occasion in the set comprises:

According to the position of each PUSCH transmission occasion in the set, the redundancy version corresponding to the PUSCH transmission occasion is determined from the redundancy version mode.
The method of claim 1, wherein,

The repeating transmission of the PUSCH scheduled by the first DCI and the second DCI includes:

For the i-th PUSCH transmission opportunity scheduled by the first DCI, a first remainder is obtained by taking the modulo Z operation on i; according to the first remainder, a redundancy version corresponding to the PUSCH transmission opportunity is selected from the redundancy version mode ;

For the jth PUSCH transmission opportunity scheduled by the second DCI, a second remainder is obtained by taking the modulo Z operation on (N+j); according to the second remainder, the PUSCH transmission is selected from the redundancy version mode The redundant version corresponding to the timing;

Wherein, the value range of the i is 0～N-1, and the value range of the j is 0～M-1.
The method of claim 1, wherein,

When the first PUSCH transmission opportunity scheduled by the first DCI is located before the first PUSCH transmission opportunity scheduled by the second DCI, repeating the transmission of the PUSCH scheduled by the first DCI and the second DCI includes:

When N=M: for the i-th PUSCH transmission opportunity scheduled by the first DCI, the third remainder is obtained by taking the modulo Z operation on 2i; according to the third remainder, the PUSCH transmission is selected from the redundancy version mode The redundancy version corresponding to the timing; for the jth PUSCH transmission timing scheduled by the second DCI, the fourth remainder is obtained by taking the modulo Z operation on 2j+1; according to the fourth remainder, from the redundancy version mode Selecting the redundancy version corresponding to the PUSCH transmission opportunity;

When N>M: For the i-th PUSCH transmission opportunity scheduled by the first DCI, take the modulo Z operation on 2i when i is less than or equal to M-1, and take the modulo Z on i+M when i is greater than M-1 The operation obtains a fifth remainder; according to the fifth remainder, a redundancy version corresponding to the PUSCH transmission opportunity is selected from the redundancy version mode; for the jth PUSCH transmission opportunity scheduled by the second DCI, for 2j +1 modulo Z operation to obtain the sixth remainder; according to the sixth remainder, select the redundancy version corresponding to the PUSCH transmission occasion from the redundancy version mode;

When N<M: for the i-th PUSCH transmission opportunity scheduled by the first DCI, take the modulo Z operation on 2i to obtain a seventh remainder; according to the seventh remainder, select the The redundancy version corresponding to the PUSCH transmission opportunity; for the jth PUSCH transmission opportunity scheduled by the second DCI, take the modulo Z operation on 2j when j is less than or equal to N-1, and perform the operation on j+N when j is greater than N-1 The eighth remainder is obtained by taking the modulo Z operation; according to the eighth remainder, the redundancy version corresponding to the PUSCH transmission opportunity is selected from the redundancy version mode;

Wherein, the value range of the i is 0～N-1, and the value range of the j is 0～M-1.
The method of claim 1, wherein,

The repeating transmission of the PUSCH scheduled by the first DCI and the second DCI includes:

For the kth PUSCH transmission opportunity in the set, the ninth remainder is obtained by taking the modulo Z operation on k; according to the ninth remainder, the redundancy version corresponding to the PUSCH transmission opportunity is selected from the redundancy version mode ;

Wherein, the value range of the k is 0˜N+M−1.
The method of claim 1, further comprising:

A first DCI is received, and a second DCI is received, wherein the reception timing of the second DCI is earlier than the PUSCH transmission timing scheduled by the first DCI.
The method of claim 1, wherein,

The high-level parameter control resource set pool indices associated with the CORESET carrying the first DCI and the second DCI are different.
The method of claim 1, further comprising:

On the PUSCH transmission opportunity scheduled by the first DCI or the second DCI, power control adjustment is performed on the PUSCH transmission opportunity according to the transmission power control command indicated in the corresponding DCI.
The method of claim 14, wherein,

The transmission power control command indicated by the DCI whose value of the associated control resource set pool index is 0 is used for the closed-loop power control adjustment of the PUSCH scheduled by the DCI whose value of the associated control resource set pool index is 0;

The transmission power control command indicated by the DCI with the associated control resource set pool index value of 1 is used for closed-loop power control adjustment of the PUSCH scheduled by the DCI with the associated control resource set pool index value of 1.
The method of claim 1, wherein,

For the default spatial information and/or the default path loss reference signal of the PUSCH transmission occasion scheduled by the first DCI or the second DCI, refer to the quasi-co-location type QCL-TypeD of the control resource set with the smallest ID in the corresponding control resource set or Reference signal for the QCL hypothesis.
The method of claim 16, wherein,

The default spatial information and/or the default path loss reference signal of the PUSCH transmission opportunity scheduled by the DCI whose value of the associated control resource set pool index is 0 refers to the control resource set associated with the control resource set pool index whose value is 0. The minimum ID of the QCL-TypeD or QCL hypothetical reference signal;

The default spatial information and/or the default path loss reference signal of the PUSCH transmission opportunity scheduled by the DCI whose associated control resource set pool index is 1, refer to the control resource set associated with the control resource set pool index whose value is 1 The minimum ID of the QCL-TypeD or QCL hypothetical reference signal.
A method for receiving a physical uplink shared channel, comprising:

The base station receives the PUSCH repeatedly transmitted by the terminal, wherein the repeatedly transmitted PUSCH is scheduled by the first DCI and the second DCI.
The method of claim 18, wherein,

The first parameter indicated by the first DCI and the second DCI is the same, and the first parameter includes at least one of a redundancy version mode, a HARQ process number, and a new data indication.
The method of claim 18, wherein,

The first DCI schedules N PUSCH transmission occasions, and the second DCI schedules M PUSCH transmission occasions;

The mapping mode of the PUSCH transmission occasion includes a sequential mapping mode and/or a cyclic mapping mode.
The method of claim 20, wherein,

In the sequential mapping mode, the N times of PUSCH transmission opportunities scheduled by the first DCI are transmitted before or after the M times of PUSCH transmission opportunities scheduled by the second DCI;

In the cyclic mapping mode, the PUSCH transmission opportunity scheduled by the first DCI and the PUSCH transmission opportunity scheduled by the second DCI are sequentially and alternately transmitted in the time domain.
The method of claim 20, wherein,

In the sequential mapping mode, the N times of PUSCH transmission opportunities scheduled by the first DCI are respectively located in consecutive N time slots; the M times of PUSCH transmission opportunities scheduled by the second DCI are respectively located in consecutive M times. in time slots;

In the cyclic mapping mode, the N times of PUSCH transmission opportunities scheduled by the first DCI and the M times of PUSCH transmission opportunities scheduled by the second DCI are located in consecutive N+M time slots.
The method of claim 20, wherein,

the N is configured by the first DCI, MAC CE or RRC message;

The M is configured by the second DCI, MAC CE or RRC message.
The method of claim 18, wherein the base station receives the PUSCH repeatedly transmitted by the terminal, comprising:

Taking the PUSCH transmission occasions scheduled by the first DCI and the second DCI as a set, a redundancy version corresponding to each PUSCH transmission occasion in the set is determined.
The method of claim 24, wherein the determining the redundancy version corresponding to each PUSCH transmission occasion in the set comprises:

According to the position of each PUSCH transmission occasion in the set, the redundancy version corresponding to the PUSCH transmission occasion is determined from the redundancy version mode.
The method of claim 18, wherein,

The base station receives the PUSCH repeatedly transmitted by the terminal, including:

For the i-th PUSCH transmission opportunity scheduled by the first DCI, a first remainder is obtained by taking the modulo Z operation on i; according to the first remainder, a redundancy version corresponding to the PUSCH transmission opportunity is selected from the redundancy version mode ;

For the jth PUSCH transmission opportunity scheduled by the second DCI, a second remainder is obtained by taking the modulo Z operation on (N+j); according to the second remainder, the PUSCH transmission is selected from the redundancy version mode The redundant version corresponding to the timing;

Wherein, the value range of the i is 0～N-1, and the value range of the j is 0～M-1.
The method of claim 18, wherein,

When the first PUSCH transmission opportunity scheduled by the first DCI is located before the first PUSCH transmission opportunity scheduled by the second DCI, the base station receives the PUSCH repeatedly transmitted by the terminal, including:

When N=M: for the i-th PUSCH transmission opportunity scheduled by the first DCI, take the modulo Z operation on 2i to obtain the third remainder; according to the third remainder, select the PUSCH transmission from the redundancy version mode The redundancy version corresponding to the timing; for the jth PUSCH transmission timing scheduled by the second DCI, the fourth remainder is obtained by taking the modulo Z operation on 2j+1; according to the fourth remainder, from the redundancy version mode Selecting the redundancy version corresponding to the PUSCH transmission opportunity;

When N>M: For the i-th PUSCH transmission opportunity scheduled by the first DCI, take the modulo Z operation on 2i when i is less than or equal to M-1, and take the modulo Z on i+M when i is greater than M-1 The operation obtains a fifth remainder; according to the fifth remainder, a redundancy version corresponding to the PUSCH transmission opportunity is selected from the redundancy version mode; for the jth PUSCH transmission opportunity scheduled by the second DCI, for 2j +1 modulo Z operation to obtain the sixth remainder; according to the sixth remainder, select the redundancy version corresponding to the PUSCH transmission occasion from the redundancy version mode;

When N<M: for the i-th PUSCH transmission opportunity scheduled by the first DCI, take the modulo Z operation on 2i to obtain the seventh remainder; according to the seventh remainder, select the The redundancy version corresponding to the PUSCH transmission opportunity; for the jth PUSCH transmission opportunity scheduled by the second DCI, when j is less than or equal to N-1, take the modulo Z operation on 2j, and when j is greater than N-1, perform the operation on j+N The eighth remainder is obtained by taking the modulo Z operation; according to the eighth remainder, the redundancy version corresponding to the PUSCH transmission opportunity is selected from the redundancy version mode;

Wherein, the value range of the i is 0～N-1, and the value range of the j is 0～M-1.
The method of claim 18, wherein,

The base station receives the PUSCH repeatedly transmitted by the terminal, including:

For the kth PUSCH transmission opportunity in the set, the ninth remainder is obtained by taking the modulo Z operation on k; according to the ninth remainder, the redundancy version corresponding to the PUSCH transmission opportunity is selected from the redundancy version mode ;

Wherein, the value range of the k is 0˜N+M−1.
The method of claim 18, further comprising:

A first DCI is sent, and a second DCI is sent, wherein the transmission timing of the second DCI is earlier than the PUSCH transmission timing scheduled by the first DCI.
The method according to claim 29, wherein the high-layer parameter control resource set pool indices associated with the CORESETs carrying the first DCI and the second DCI are different.
The method of claim 18, wherein,

For the default spatial information and/or the default path loss reference signal of the PUSCH transmission occasion scheduled by the first DCI or the second DCI, refer to the quasi-co-location type QCL-TypeD of the control resource set with the smallest ID in the corresponding control resource set or Reference signal for the QCL hypothesis.
The method of claim 31, wherein,

The default spatial information and/or the default path loss reference signal of the PUSCH transmission timing scheduled by the DCI whose value of the associated control resource set pool index is 0, refer to the control resource set associated with the control resource set pool index whose value is 0. The minimum ID of the QCL-TypeD or QCL hypothetical reference signal;

The default spatial information and/or the default path loss reference signal of the PUSCH transmission timing scheduled by the DCI with the associated control resource set pool index of 1, refer to the control resource set associated with the control resource set pool index of 1. The minimum ID of the QCL-TypeD or QCL hypothetical reference signal.
A terminal that includes:

a transceiver, configured to repeatedly transmit the PUSCH scheduled by the first DCI and the second DCI.
A terminal that includes:

A transmission module, configured to repeatedly transmit the PUSCH scheduled by the first DCI and the second DCI.
A terminal, comprising: a processor, a memory, and a program stored on the memory and executable on the processor, the program being executed by the processor to achieve the invention as claimed in any one of claims 1 to 17 steps of the method described.
A base station, comprising:

A transceiver, configured to receive the PUSCH repeatedly transmitted by the terminal, wherein the repeatedly transmitted PUSCH is scheduled by the first DCI and the second DCI.
A base station, comprising:

A receiving module, configured to receive the PUSCH repeatedly transmitted by the terminal, wherein the repeatedly transmitted PUSCH is scheduled by the first DCI and the second DCI.
A base station, comprising: a processor, a memory, and a program stored on the memory and executable on the processor, the program being executed by the processor to achieve the invention as claimed in any one of claims 18 to 32 steps of the method described.
A computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 32 are implemented.