CN114257353A

CN114257353A - Channel transmission method, receiving method, terminal and base station

Info

Publication number: CN114257353A
Application number: CN202010999102.4A
Authority: CN
Inventors: 李岩; 王飞; 郑毅; 柯颋
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2022-03-29
Anticipated expiration: 2040-09-22
Also published as: CN114257353B; WO2022063063A1

Abstract

A channel transmission method, a receiving method, a terminal and a base station are provided, the method comprises: the terminal determines a reference DCI from the two received DCIs, and determines the reference configuration information of channel repeated transmission according to the reference DCI; and according to the reference configuration information of the channel repeated transmission, performing the repeated transmission of the channel. The channel transmission method, the receiving method, the terminal and the base station provided by the embodiment of the invention can perform channel repeated transmission based on the channel transmission resource determined by the reference DCI in a multi-TRP scene, and alternately use the two DCIs to determine other configuration information of each repeated transmission in the repeated transmission of the channel, thereby fully utilizing diversity gain brought by a plurality of TRPs and improving the reliability of the channel transmission.

Description

Channel transmission method, receiving method, terminal and base station

Technical Field

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

Background

In the prior art, in a Physical Uplink Shared Channel (PUSCH) scheduling manner, time domain resource Information of a PUSCH is indicated by Downlink Control Information (DCI), and specifically includes a slot offset K2(slot offset K2), a Start symbol (Start symbol) and a length (length), as shown in fig. 1. The DCI indicates a hybrid automatic repeat request process number (HARQ process number) and a New data indication (New data indication), and indicates that retransmission data is scheduled when the HARQ process numbers are the same and NDI is not flipped. In addition, the number of repetitions PUSCH is configured by Radio Resource Control (RRC) signaling (2,4,8), or when the DCI indicates the PUSCH time domain Resource location, indicates the number of repetitions. In addition, a Redundancy Version (RV) of the PUSCH is indicated by the DCI, and the specific value may be any of: 0231,2310,3102,1023. For example, RV in fig. 1 is "0231", meaning that the redundancy versions of 4 adjacent PUSCHs are RV0, RV2, RV3 and RV1, "2310", respectively, and the like are similar.

In a Physical Uplink Control Channel (PUCCH) scheduling method, a PUCCH resource identifier (PUCCH resource ID) is indicated by DCI, an interval between a PDSCH and a PUCCH is indicated by DCI, that is, a PDSCH-to-HARQ-feedback timing indicator (PDSCH-to-HARQ-feedback timing indicator), times nrofSlots (2,4,8) of a repetition slot are configured by RRC signaling, a starting symbol index (starting symbol index) and a symbol number (nrofSymbols) are configured by RRC signaling, and a starting symbol S and a symbol number L of each repetition are the same. Fig. 2 shows a schematic diagram of PUCCH scheduling.

In a Multi-transmission-reception node (Multi-TRP) scenario, a Control Resource Set (CORESET Set) of 2 TRPs is associated with different CORESET pool indexes (CORESET pool indexes), and a terminal determines which TRP a PDCCH carried on CORESET is from by determining the CORESET pool index associated with CORESET.

For example, TRP0 correlates coresetpoolndex ═ 0 and TRP1 correlates coresetpoolndex ═ 1. The terminal sends 1 PUSCH, and 2 TRPs can be received. The terminal transmits 1 PUCCH, and 2 TRPs can be received.

In order to improve the Multi-TRP scenario PUSCH reliability, the introduction of PUSCH repetition transmission (PUSCH repetition) is considered. As shown in fig. 3, when 2 DCIs schedule PUSCHs for retransmission transmission, the conventional scheme can only transmit a PUSCH of one TRP first, for example, in a PUSCH of slot n (RV is 0) and a PUSCH of slot n +1 (RV is 2) scheduled by DCI-0, and then transmit a PUSCH of another TRP, for example, a PUSCH of slot n +2 (RV is 3) and a PUSCH of slot n +3 (RV is 1) scheduled by DCI-1, and the robustness of this transmission scheme is poor.

Disclosure of Invention

At least one embodiment of the present invention provides a channel transmission method, a receiving method, a terminal and a base station, which can improve reliability of channel transmission in a Multi-transmit-receive node (Multi-TRP) scenario.

According to an aspect of the present invention, at least one embodiment provides a channel transmission method, including:

the terminal determines a reference DCI from the two received DCIs, and determines the reference configuration information of channel repeated transmission according to the reference DCI;

and according to the reference configuration information of the channel repeated transmission, performing the repeated transmission of the channel.

In addition, according to at least one embodiment of the present invention, the control resource sets CORESET of the two DCIs are respectively associated with two control resource set pool indexes with different values, and/or the hybrid automatic repeat request process numbers HARQ process numbers and/or the New data indicators indicated by the two DCIs are the same.

Furthermore, according to at least one embodiment of the present invention, the channel is a physical uplink shared channel, PUSCH, and the reference configuration information is a redundancy version of PUSCH transmission and/or time domain resource information of PUSCH transmission.

Furthermore, according to at least one embodiment of the present invention, the performing repeated transmission of the channel according to the reference configuration information of the repeated transmission of the channel includes:

and in the repeated transmission of the channel, determining the redundancy version of each repeated transmission according to the PUSCH transmission redundancy version indicated by the reference DCI.

In addition, according to at least one embodiment of the present invention, the channel is a physical uplink control channel PUCCH, and the reference configuration information is a PUCCH resource identity PRI and/or a PDSCH-to-HARQ _ feedback timing indicator indicated by a PDSCH-to-HARQ _ feedback timing.

and in the repeated transmission of the channel, determining the transmission resource of the PUCCH according to the PRI indicated by the reference DCI and/or the PDSCH-to-HARQ _ feedback timing indicator.

Further, according to at least one embodiment of the present invention, in the repeated transmission of the channel, the two DCIs are used alternately to determine other configuration information for each repeated transmission, and the other configuration information includes at least one of: the method comprises the steps of transmitting a precoding matrix indicator (TPMI), a rank RI, a sounding reference Signal Resource Indicator (SRI), a demodulation reference signal (DMRS) port and a Modulation and Coding Scheme (MCS).

Furthermore, according to at least one embodiment of the present invention, the determining a reference DCI from two DCIs may be any one of:

determining a first control resource set pool index with a preset value from the two control resource set pool indexes, and determining DCI on a control resource set associated with the first control resource set pool index as the reference DCI;

determining a first PDCCH with a later monitoring occasion from two PDCCHs, and determining the DCI detected on the first PDCCH as the reference DCI, wherein the two PDCCHs are the PDCCHs for detecting the two DCIs respectively;

and determining the DCI corresponding to the earlier PUSCH or PUCCH transmission time as the reference DCI according to the PUSCH or PUCCH transmission time scheduled by the two DCIs.

In addition, according to at least one embodiment of the present invention, the preset value is 0, 1 or a first value, and the first value is a value of a control resource pool index associated with the control resource set 0.

In addition, according to at least one embodiment of the present invention, when the monitoring occasions of the two PDCCHs are the same, a second control resource pool index with a larger or smaller value is determined from the two control resource pool indexes, and DCI on a control resource set associated with the second control resource pool index is determined as the reference DCI.

According to another aspect of the present invention, at least one embodiment provides a channel receiving method, including:

the base station determines a reference DCI from the two DCIs sent to the terminal, and determines the reference configuration information repeatedly transmitted by the terminal channel according to the reference DCI;

and receiving the channel repeatedly transmitted by the terminal according to the reference configuration information repeatedly transmitted by the channel.

Furthermore, according to at least one embodiment of the present invention, the receiving the channel repeatedly transmitted by the terminal according to the reference configuration information repeatedly transmitted by the channel includes:

and determining the redundancy version repeatedly transmitted by the terminal each time according to the PUSCH transmission redundancy version indicated by the reference DCI in the process of receiving the channel repeatedly transmitted by the terminal.

and determining the transmission resource of the PUCCH according to the PRI and/or the PDSCH-to-HARQ _ feedback timing indicator indicated by the reference DCI during the receiving of the channel repeatedly transmitted by the terminal.

Furthermore, according to at least one embodiment of the present invention, in receiving the channel repeatedly transmitted by the terminal, determining other configuration information of each repeated transmission of the terminal by alternately using the two DCIs, where the other configuration information includes at least one of: the method comprises the steps of transmitting a precoding matrix indicator (TPMI), a rank RI, a sounding reference Signal Resource Indicator (SRI), a demodulation reference signal (DMRS) port and a Modulation and Coding Scheme (MCS).

In addition, in accordance with at least one embodiment of the present invention,

the preset value is 0, 1 or a first value, and the first value is a value of a control resource set pool index associated with the control resource set 0.

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

the processor is used for determining a reference DCI from the two received DCIs and determining the reference configuration information of channel repeated transmission according to the reference DCI;

and the transceiver is used for carrying out repeated transmission of the channel according to the reference configuration information of the repeated transmission of the channel.

Furthermore, according to at least one embodiment of the present invention, the transceiver is further configured to determine, in the repeated transmission of the channel, a redundancy version for each repeated transmission according to the PUSCH transmission redundancy version indicated by the reference DCI, and perform the repeated transmission of the channel according to the determined redundancy version and the time domain resource information of the PUSCH transmission.

In addition, according to at least one embodiment of the present invention, the transceiver is further configured to determine, in the repeated transmission of the channel, a transmission resource of a PUCCH according to the PRI and/or the PDSCH-to-HARQ _ feedback timing indicator indicated by the reference DCI, and perform the repeated transmission of the channel according to the determined transmission resource of the PUCCH.

Furthermore, according to at least one embodiment of the present invention, the transceiver is further configured to determine, in repeated transmission of the channel, other configuration information for each repeated transmission by alternately using the two DCIs, where the other configuration information includes at least one of: the method comprises the steps of transmitting a precoding matrix indicator (TPMI), a rank RI, a sounding reference Signal Resource Indicator (SRI), a demodulation reference signal (DMRS) port and a Modulation and Coding Scheme (MCS).

Furthermore, in accordance with at least one embodiment of the present invention, the processor is further configured to determine a reference DCI from two DCIs according to any one of the following:

a determining module, configured to determine a reference DCI from the two received DCIs, and determine reference configuration information for channel repeat transmission according to the reference DCI;

and the transmission module is used for carrying out repeated transmission of the channel according to the reference configuration information of the repeated transmission of the channel.

According to another aspect of the present invention, at least one embodiment provides a terminal including: a processor, a memory and a program stored on the memory and executable on the processor, which program, when executed by the processor, performs the steps of the channel transmission method as described above.

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

the processor is used for determining a reference DCI from two DCIs sent to the terminal and determining the reference configuration information repeatedly transmitted by the terminal channel according to the reference DCI;

and the transceiver is used for receiving the channel repeatedly transmitted by the terminal according to the reference configuration information repeatedly transmitted by the channel.

Furthermore, according to at least one embodiment of the present invention, the transceiver is further configured to determine, in receiving the channel repeatedly transmitted by the terminal, a redundancy version of each repeated transmission of the terminal according to the PUSCH transmission redundancy version indicated by the reference DCI.

In addition, according to at least one embodiment of the present invention, the transceiver is further configured to determine, during reception of the channel repeatedly transmitted by the terminal, a transmission resource of a PUCCH according to the PRI and/or the PDSCH-to-HARQ _ feedback timing indicator indicated by the reference DCI.

Furthermore, according to at least one embodiment of the present invention, the transceiver is further configured to determine other configuration information of each repeated transmission of the terminal by alternately using the two DCIs in receiving the channel of the repeated transmission of the terminal, where the other configuration information includes at least one of: the method comprises the steps of transmitting a precoding matrix indicator (TPMI), a rank RI, a sounding reference Signal Resource Indicator (SRI), a demodulation reference signal (DMRS) port and a Modulation and Coding Scheme (MCS).

In accordance with another aspect of the present invention, at least one embodiment provides a base station comprising a transceiver and a processor, wherein,

the determining module is used for determining a reference DCI from the two DCIs sent to the terminal by the base station and determining the reference configuration information repeatedly transmitted by the terminal channel according to the reference DCI;

and the receiving module is used for receiving the channel repeatedly transmitted by the terminal according to the reference configuration information repeatedly transmitted by the channel.

According to another aspect of the present invention, 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, which program, when executed by the processor, carries out the steps of the channel receiving method as described above.

According to another aspect of the invention, at least one embodiment provides a computer readable storage medium having a program stored thereon, which when executed by a processor, performs the steps of the method as described above.

Compared with the prior art, the channel transmission method, the receiving method, the terminal and the base station provided by the embodiment of the invention can perform channel repeated transmission based on the channel transmission resource determined by the reference DCI in a multi-TRP scene, and determine other configuration information of each repeated transmission by alternately using the two DCIs in the repeated transmission of the channel, thereby fully utilizing diversity gain brought by a plurality of TRPs and improving the reliability of the channel transmission.

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 only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic diagram of PUSCH scheduling in the prior art;

fig. 2 is a diagram illustrating PUCCH scheduling in the prior art;

fig. 3 is a diagram illustrating PUSCH repetition transmission in the prior art;

FIG. 4 is a schematic diagram of an application scenario according to an embodiment of the present invention;

fig. 5 is a schematic diagram of PUSCH retransmission according to an embodiment of the present invention;

fig. 6 is a diagram illustrating PUCCH retransmission according to an embodiment of the present invention;

fig. 7 is a flowchart illustrating a channel transmission method according to an embodiment of the present invention;

fig. 8 is a schematic flowchart of a channel receiving method according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a base station according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of a base station according to an embodiment of the present invention.

Detailed Description

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

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. In the description and in 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 Evolution (LTE-a) systems, and may also be used for various wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), 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. CDMA systems may implement Radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA), and so on. UTRA includes Wideband CDMA (Wideband Code Division Multiple Access, WCDMA) and other CDMA variants. TDMA systems may implement radio technologies such as Global System for Mobile communications (GSM). The OFDMA system may implement radio technologies such as Ultra Mobile Broadband (UMB), evolved-UTRA (E-UTRA), IEEE 802.21(Wi-Fi), IEEE802.16(WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are parts of the Universal Mobile Telecommunications System (UMTS). LTE and higher LTE (e.g., LTE-A) are new UMTS releases that use E-UTRA. UTRA, E-UTRA, UMTS, LTE-A, and GSM are described in documents from an organization named "third Generation Partnership Project" (3 GPP). CDMA2000 and UMB are described in documents from an organization named "third generation partnership project 2" (3GPP 2). The techniques described herein may be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes the NR system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied 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 described methods may be performed in an order different than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Referring to fig. 4, fig. 4 is a block diagram of a wireless communication system to which an embodiment of the present invention is applicable. 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 a User Equipment (UE), where the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or a vehicle-mounted Device, and the specific type of the terminal 11 is not limited in the embodiment of the present invention. The network device 12 may be a Base Station and/or a core network element, wherein the Base Station may be a 5G or later-version Base Station (e.g., a gNB, a 5G NR NB, etc.), or a Base Station in other communication systems (e.g., an eNB, a WLAN access point, or other access points, etc.), wherein the 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 (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, it should be noted that, in the embodiment of the present invention only takes the Base Station in the NR system as an example, but does not limit the specific type of base station.

The base stations may communicate with the terminals 11 under the control of a base station controller, which may be part of the core network or some of the base stations in various examples. Some base stations may communicate control information or user data with the core network through a backhaul. In some examples, some of the base stations may communicate with each other, directly or indirectly, over backhaul links, which may be wired or wireless communication links. A wireless communication system may support operation on multiple carriers (waveform signals of different frequencies). A multi-carrier transmitter can transmit modulated signals on the 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 transmitted on a different carrier and may carry control information (e.g., reference signals, control channels, etc.), overhead information, data, and so on.

The base station may communicate wirelessly with the terminal 11 via one or more access point antennas. Each base station may provide communication coverage for a respective coverage area. The coverage area of an access point may be divided into sectors that form only a portion of the coverage area. A wireless communication system may include different types of base stations (e.g., macro, micro, 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.

The communication links in a wireless communication system may comprise an Uplink for carrying Uplink (UL) transmissions (e.g., from terminal 11 to network device 12) or a Downlink for carrying Downlink (DL) transmissions (e.g., from network device 12 to terminal 11). The UL transmission may also be referred to as reverse link transmission, while the DL transmission may also be referred to as forward link transmission. Downlink transmissions may be made using licensed frequency bands, unlicensed frequency bands, or both. Similarly, uplink transmissions may be made using licensed frequency bands, unlicensed frequency bands, or both.

As described in the background art, in the PUSCH repeated transmission in the Multi-TRP scenario in the prior art, the diversity gain of multiple TRPs is not fully utilized, resulting in poor transmission robustness. In order to fully utilize diversity gain of multiple TRPs, an embodiment of the present invention provides a channel transmission method, which can implement cross transmission of PUSCH channels with 2 TRPs, and RV versions are sorted according to PUSCH transmission opportunity (occase), for example, {0231 }. Fig. 5 is a schematic diagram of a PUSCH that can be implemented by using the channel transmission scheme according to an embodiment of the present invention.

Similarly, the PUCCH repetition transmission of the prior art has the same problem. In order to improve reliability of PUCCH transmission in a Multi-TRP scenario, PUCCH repetition transmission is introduced in the embodiment of the present invention, and transmission as shown in fig. 6 can be implemented.

Referring to fig. 7, a channel transmission method according to an embodiment of the present invention, when applied to a terminal side, includes:

step 71, the terminal determines a reference DCI from the two received DCIs, and determines the reference configuration information of the channel repeat transmission according to the reference DCI.

Here, the core esets of the two DCIs are respectively associated with two control resource pool indexes with different values, or the hybrid automatic repeat request process numbers (HARQ process numbers) and/or New data indicators (New data indicators) indicated by the two DCIs are the same.

Optionally, the core esets of the two DCIs are respectively associated with two control resource pool indexes with different values, and a hybrid automatic repeat request process number (HARQ process number) and/or a New data indicator (New data indicator) indicated by the two DCIs are the same.

Here, the hybrid automatic repeat request process number (HARQ process number) and/or New data indicator (New data indicator) indicated by the two DCIs are the same, and may specifically be: the hybrid automatic repeat request process numbers indicated by the two DCIs are the same, or the new data indications indicated by the two DCIs are the same, or the hybrid automatic repeat request process numbers indicated by the two DCIs and the new data indications are the same.

When the CORESET of the two DCIs are respectively associated with two control resource pool indexes with different values, the CORESET indicates that the two DCIs are respectively the DCIs sent by different TRPs. And when the hybrid automatic repeat request process numbers indicated by the two DCIs are the same, indicating that the two DCIs are scheduling instructions for the same channel. And when the new data indications indicated by the two DCIs are the same, indicating that the channels aimed by the two DCIs are simultaneously the initial transmission or the retransmission.

And 72, performing repeated transmission of the channel according to the reference configuration information of the repeated transmission of the channel.

Here, in the embodiment of the present invention, reference configuration information for channel repeat transmission is determined according to the same DCI (i.e., reference DCI), and then the channel repeat transmission is performed according to the reference configuration information, so that the channel repeat transmission can be performed based on the reference configuration information indicated by the same DCI.

Taking PUSCH as an example:

the embodiment of the invention can predefine the first PUSCH transmission position determined only by referring to the time domain resource information indicated by a DCI (reference DCI) and determine the redundancy version of the PUSCH transmission according to the RV indicated in the reference DCI.

Specifically, when the channel is a PUSCH, the reference configuration information may include: a redundancy version of the PUSCH transmission, and/or time domain resource information of the PUSCH transmission. The time domain resource information of the PUSCH transmission may be a transmission position of a first PUSCH determined according to the time domain resource information indicated by the reference DCI. When PUSCH repeated transmission is performed, the redundancy version of each repeated transmission may be determined according to the PUSCH transmission redundancy version indicated by the reference DCI.

Determining redundancy versions (for convenience of description, referred to as reference redundancy versions) of the PUSCH transmission according to the determined reference DCI, wherein the RV of the 1 st PUSCH adopts a first value in the reference redundancy versions, the RV of the 2 nd PUSCH adopts a second value in the reference redundancy versions, the RV of the 3rd PUSCH adopts a third value in the reference redundancy versions, the RV of the 4 th PUSCH adopts a fourth value in the reference redundancy versions, and so on, determining the RV of the 2 TRP scheduled PUSCH.

For example, referring to that the PUSCH transmission redundancy version indicated by the DCI is 0231, the redundancy version of the first PUSCH is 0, the redundancy version of the 2 nd PUSCH is 2, the redundancy version of the 3rd PUSCH is 3, the redundancy version of the 4 th PUSCH is 1, and so on. The adjacent PUSCHs are PUSCHs scheduled by different DCIs.

Here, the time domain resource information between the PDCCH and the PUSCH is determined according to the determined reference DCI, and the time domain position of the first PUSCH transmission is obtained, where the other configuration information of the first PUSCH is determined according to the DCI, the other configuration information of the 2 nd PUSCH is determined according to another DCI, the other configuration information of the 3rd PUSCH is determined according to the determined reference DCI, the other configuration information of the 4 th PUSCH is determined according to the another DCI, and so on, so as to implement PUSCH cross transmission of 2 TRP scheduling.

Taking PUCCH as an example:

the embodiment of the invention can predefine the determination of the first PUCCH transmission position by only referring to the PDSCH-to-HARQ _ feedback timing indicator indicated by a DCI (reference DCI) and the determination of the PUCCH resource ID according to the PRI indicated in the DCI.

When the channel is a PUCCH, the reference configuration information includes a PUCCH Resource Identity (PRI), and/or a PDSCH-to-HARQ _ feedback timing indicator (PDSCH-to-HARQ _ feedback timing indicator) of the HARQ. When performing PUCCH repetition transmission, the transmission resource of the PUCCH may be determined according to the PRI and/or the PDSCH-to-HARQ _ feedback timing indicator indicated by the reference DCI.

And obtaining a time domain position of the first PUCCH transmission according to the PDSCH-to-HARQ _ feedback timing indicator determined by the reference DCI, wherein the other configuration information of the first PUCCH is determined according to the DCI, the other configuration information of the 2 nd PUCCH is determined according to another DCI, the other configuration information of the 3rd PUCCH is determined according to the determined DCI, the other configuration information of the 4 th PUCCH is determined according to another DCI, and the like to realize PUCCH cross transmission of 2 TRP scheduling.

In the above repeated transmission of the PUSCH or PUCCH, the two DCIs are alternately used to determine other configuration information of each repeated transmission, where the other configuration information includes at least one of: a Transmitted Precoding Matrix Indicator (TPMI), a Rank (RI), a sounding Reference Signal Resource Indicator (SRI), a Demodulation Reference Signal (DMRS) port, and a Modulation and Coding Scheme (MCS), etc.

Several implementation manners for determining one reference DCI from two DCIs are provided below, and the reference DCI may be determined in any one of the following manners according to the embodiments of the present invention.

1) And determining a first control resource set pool index with a preset value from the two control resource set pool indexes, and determining DCI on the control resource set associated with the first control resource set pool index as the reference DCI.

Here, the preset value is 0, 1 or a first value, and the first value is a value of a control resource set pool index associated with the control resource set 0(CORESET 0).

For example, the predefined reference DCI is DCI on the CORESET associated with CORESET poolndex 0 or DCI on the CORESET associated with CORESET poolndex 1. As another example, the predefined reference DCI is a DCI on CORESET that is the same CORESET poolindex parameter associated with CORESET 0.

2) Determining a first PDCCH with a later monitoring opportunity from the two PDCCHs, and determining the DCI detected on the first PDCCH as the reference DCI, wherein the two PDCCHs are the PDCCHs for detecting the two DCIs respectively.

For example, the PDCCHs with the later monitoring opportunity are selected to determine DCI according to PDCCH monitoring opportunity sequencing, the PDCCHs with the same monitoring opportunity are sequenced according to coresetpoolndex, the PDCCH with the larger (or smaller) coresetpoolndex number is selected to determine DCI, the first PUSCH transmission position is determined according to the time domain resource information indicated by the DCI, and the redundancy version for PUSCH transmission is determined according to the RV indicated in the DCI.

For another example, the PDCCHs with the later monitoring timing are selected to determine DCI according to PDCCH monitoring timing ordering, the PDCCHs with the same monitoring timing are ordered according to coresetpoolndex, the PDCCHs with the smaller coresetpoolndex numbers are selected to determine DCI, the first PUCCH transmission position is determined according to the PDSCH-to-HARQ _ feedback timing indicator indicated by the DCI, and the PUCCH resource ID is determined according to the PRI indicated in the DCI.

Here, when the monitoring occasions of the two PDCCHs are the same, a second control resource set pool index with a larger value (or a smaller value) is determined from the two control resource set pool indexes, and DCI on a control resource set associated with the second control resource set pool index is determined as the reference DCI.

3) And determining the DCI corresponding to the earlier PUSCH or PUCCH transmission time as the reference DCI according to the PUSCH or PUCCH transmission time scheduled by the two DCIs.

For example, taking PUSCH as an example, the PUSCH is sequenced according to the PUSCH transmission timing positions scheduled by the two DCIs, the PUSCH with the front transmission timing is used as the first PUSCH, the first PUSCH transmission position is determined according to the DCI scheduling the PUSCH, and the redundancy version of PUSCH transmission is determined according to the RV indicated in the DCI.

For another example, in order to sort PUCCH transmission timing positions scheduled according to 2 DCIs, a PUCCH with a transmission timing earlier is used as a first PUCCH, the first PUCCH transmission position is determined according to a PDSCH-to-HARQ _ feedback timing indicator indicated by the DCI scheduling the PUCCH, and a PUCCH resource ID is determined according to a PRI indicated in the DCI.

Through the above steps, in a multi-TRP scenario, in the embodiment of the present invention, channel repetition transmission may be performed based on a channel transmission resource determined by referring to DCI, and in the channel repetition transmission, the two pieces of DCI are alternately used to determine other configuration information for each repetition transmission, for example, when the two pieces of DCI are DCI 0 and DCI 1, a 1 st channel is transmitted using the other configuration information indicated by DCI 0, a2 nd channel is transmitted using the other configuration information indicated by DCI 1, a 3rd channel is transmitted using the other configuration information indicated by DCI 0, a 4 th channel is transmitted using the other configuration information indicated by DCI 1, and so on. Through the cross transmission mode, the embodiment of the invention can fully utilize diversity gain brought by a plurality of TRPs and improve the reliability of channel transmission.

The channel transmission method according to the embodiment of the present invention is explained above from the terminal side, and is explained further below from the base station side.

Referring to fig. 8, an embodiment of the present invention provides a channel receiving method, applied to a base station side, including:

step 81, the base station determines a reference DCI from the two DCIs sent to the terminal, and determines the reference configuration information repeatedly transmitted by the terminal channel according to the reference DCI.

Here, the core esets of the two DCIs are respectively associated with two control resource pool indexes with different values, and/or the HARQ process number indicated by the two DCIs and/or the New data indicator are the same.

And step 82, receiving the channel repeatedly transmitted by the terminal according to the reference configuration information repeatedly transmitted by the channel.

Through the above steps, the embodiment of the present invention may determine the reference configuration information of the channel repeat transmission according to the same DCI (i.e., the reference DCI), and then receive the channel repeat transmission by the terminal according to the reference configuration information, thereby implementing the reception of the repeat transmission channel based on the reference configuration information indicated by the same DCI.

When the channel is a PUSCH, the reference configuration information is a redundancy version transmitted by the PUSCH and/or time domain resource information transmitted by the PUSCH. At this time, in step 82, the base station may determine the redundancy version that the terminal repeatedly transmits each time according to the PUSCH transmission redundancy version indicated by the reference DCI.

When the channel is a PUCCH, the reference configuration information is a PUCCH resource identifier PRI and/or a PDSCH-to-HARQ _ feedback timing indicator indicated by a PDSCH-to-HARQ feedback timing. At this time, in step 82, the base station may determine the transmission resource of the PUCCH according to the PRI indicated by the reference DCI and/or the PDSCH-to-HARQ _ feedback timing indicator.

In addition, in step 82, the base station may determine other configuration information of each repeated transmission of the terminal by using the two DCIs alternately, where the other configuration information includes at least one of: TPMI, I, SRI, DMRS ports and MCS, etc.

Similarly, in the step 81, a reference DCI is determined, which may be any one of the following manners:

Here, the preset value is 0, 1 or a first value, and the first value is a value of a control resource set pool index associated with the control resource set 0.

Here, when the monitoring occasions of the two PDCCHs are the same, a second control resource set pool index with a larger or smaller value is determined from the two control resource set pool indexes, and DCI on a control resource set associated with the second control resource set pool index is determined as the reference DCI.

Various methods of embodiments of the present invention have been described above. An apparatus for carrying out the above method is further provided below.

Referring to fig. 9, an embodiment of the present invention provides a terminal 90, including:

a determining module 91, configured to determine a reference DCI from the two received DCIs, and determine reference configuration information for channel repeat transmission according to the reference DCI;

a transmission module 92, configured to perform repeated transmission of the channel according to the reference configuration information of the repeated transmission of the channel

Optionally, the control resource sets CORESET of the two DCIs are respectively associated with two control resource set pool indexes with different values, and/or the HARQ process number indicated by the two DCIs and/or the New data indicator indicated by the New data are the same. Optionally, the channel is a physical uplink shared channel PUSCH, and the reference configuration information is a redundancy version transmitted by the PUSCH and/or time domain resource information transmitted by the PUSCH.

Optionally, the transmission module is further configured to determine, in the repeated transmission of the channel, a redundancy version of each repeated transmission according to the PUSCH transmission redundancy version indicated by the reference DCI.

Optionally, the channel is a physical uplink control channel PUCCH, and the reference configuration information is a PUCCH resource identifier PRI and/or a PDSCH-to-HARQ _ feedback timing indicator indicated by a PDSCH-to-HARQ feedback timing.

Optionally, the transmission module is further configured to determine, in the repeated transmission of the channel, a transmission resource of the PUCCH according to the PRI and/or the PDSCH-to-HARQ _ feedback timing indicator indicated by the reference DCI.

Optionally, the transmission module is further configured to determine, in the repeated transmission of the channel, other configuration information of each repeated transmission by alternately using the two DCIs, where the other configuration information includes at least one of: the method comprises the steps of transmitting a precoding matrix indicator (TPMI), a rank RI, a sounding reference Signal Resource Indicator (SRI), a demodulation reference signal (DMRS) port and a Modulation and Coding Scheme (MCS).

Optionally, the determining module is further configured to determine a reference DCI from the two DCIs according to any one of the following manners:

Optionally, the preset value is 0, 1 or a first value, and the first value is a value of a control resource set pool index associated with the control resource set 0.

Optionally, when the monitoring occasions of the two PDCCHs are the same, a second control resource pool index with a larger or smaller value is determined from the two control resource pool indexes, and DCI on a control resource set associated with the second control resource pool index is determined as the reference DCI.

The apparatus in this embodiment is an apparatus corresponding to the method shown in fig. 7, and the implementation manners in the above embodiments are all applied to the embodiment of the apparatus, and the same technical effects can be achieved. The apparatus provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are not repeated here.

Referring to fig. 10, a schematic structural diagram of a terminal according to an embodiment of the present invention is provided, where the terminal 1000 includes: a processor 1001, a transceiver 1002, a memory 1003, a user interface 1004, and a bus interface.

In this embodiment of the present invention, the terminal 1000 further includes: programs stored on the memory 1003 and executable on the processor 1001.

The processor 1001, when executing the program, implements the following steps: '

Determining a reference DCI from the two received DCIs, and determining reference configuration information of channel repeated transmission according to the reference DCI;

Optionally, the control resource sets CORESET of the two DCIs are respectively associated with two control resource set pool indexes with different values, and/or the HARQ process number indicated by the two DCIs and/or the New data indicator indicated by the New data are the same.

Optionally, the channel is a physical uplink shared channel PUSCH, and the reference configuration information is a redundancy version transmitted by the PUSCH and/or time domain resource information transmitted by the PUSCH.

Optionally, the processor further implements the following steps when executing the program: and in the repeated transmission of the channel, determining the redundancy version of each repeated transmission according to the PUSCH transmission redundancy version indicated by the reference DCI.

Optionally, the processor further implements the following steps when executing the program: and in the repeated transmission of the channel, determining the transmission resource of the PUCCH according to the PRI indicated by the reference DCI and/or the PDSCH-to-HARQ _ feedback timing indicator.

Optionally, the processor further implements the following steps when executing the program: in the repeated transmission of the channel, determining other configuration information of each repeated transmission by alternately using the two DCIs, wherein the other configuration information comprises at least one of the following: the method comprises the steps of transmitting a precoding matrix indicator (TPMI), a rank RI, a sounding reference Signal Resource Indicator (SRI), a demodulation reference signal (DMRS) port and a Modulation and Coding Scheme (MCS).

Optionally, the processor further implements the following steps when executing the program: determining a first control resource set pool index with a preset value from the two control resource set pool indexes, and determining DCI on a control resource set associated with the first control resource set pool index as the reference DCI;

It can be understood that, in the embodiment of the present invention, when being executed by the processor 1001, the computer program can implement the processes of the embodiment of the channel transmission method shown in fig. 7, and can achieve the same technical effects, and details are not described herein to avoid repetition.

In fig. 10, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 1001 and various circuits of memory represented by memory 1003 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1002 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The user interface 1004 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 1001 is responsible for managing a bus architecture and general processes, and the memory 1003 may store data used by the processor 1001 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 embodiments are all applicable to the embodiment of the terminal, and the same technical effects can be achieved. In the terminal, the transceiver 1002 and the memory 1003, and the transceiver 1002 and the processor 1001 may be communicatively connected through a bus interface, and the functions of the processor 1001 may also be implemented by the transceiver 1002, and the functions of the transceiver 1002 may also be implemented by the processor 1001. It should be noted that, the terminal provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are omitted here.

In some embodiments of the invention, there is also provided a computer readable storage medium having a program stored thereon, which when executed by a processor, performs the steps of:

When executed by the processor, the program can implement all the implementation manners in the channel transmission method applied to the terminal side, and can achieve the same technical effect, and is not described herein again to avoid repetition.

An embodiment of the present invention provides a base station 110 shown in fig. 11, including:

a determining module 111, configured to determine, by the base station, one reference DCI from two DCIs sent to the terminal, and determine, according to the reference DCI, reference configuration information that is repeatedly transmitted in a channel of the terminal;

a receiving module 112, configured to receive the channel repeatedly transmitted by the terminal according to the reference configuration information repeatedly transmitted by the channel.

Optionally, the receiving module is further configured to determine, during receiving the channel repeatedly transmitted by the terminal, a redundancy version repeatedly transmitted by the terminal each time according to the PUSCH transmission redundancy version indicated by the reference DCI.

Optionally, the receiving module is further configured to determine, during receiving the channel repeatedly transmitted by the terminal, a transmission resource of a PUCCH according to the PRI and/or the PDSCH-to-HARQ _ feedback timing indicator indicated by the reference DCI.

Optionally, the receiving module is further configured to, in receiving the channel repeatedly transmitted by the terminal, determine other configuration information of each repeated transmission of the terminal by alternately using the two DCIs, where the other configuration information includes at least one of: the method comprises the steps of transmitting a precoding matrix indicator (TPMI), a rank RI, a sounding reference Signal Resource Indicator (SRI), a demodulation reference signal (DMRS) port and a Modulation and Coding Scheme (MCS).

The apparatus in this embodiment is an apparatus corresponding to the method shown in fig. 8, and the implementation manners in the above embodiments are all applied to the embodiment of the apparatus, and the same technical effects can be achieved. It should be noted that, the apparatus provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are omitted here.

Referring to fig. 12, an embodiment of the present invention provides a structural schematic diagram of a base station 1200, including: a processor 1201, a transceiver 1202, a memory 1203 and a bus interface, wherein:

in this embodiment of the present invention, the base station 1200 further includes: a program stored on the memory 1203 and executable on the processor 1201, which when executed by the processor 1201, performs the steps of:

determining a reference DCI from two DCIs sent to a terminal, and determining reference configuration information of terminal channel repeated transmission according to the reference DCI;

Optionally, the processor further implements the following steps when executing the program: and determining the redundancy version repeatedly transmitted by the terminal each time according to the PUSCH transmission redundancy version indicated by the reference DCI in the process of receiving the channel repeatedly transmitted by the terminal.

Optionally, the processor further implements the following steps when executing the program: and determining the transmission resource of the PUCCH according to the PRI and/or the PDSCH-to-HARQ _ feedback timing indicator indicated by the reference DCI during the receiving of the channel repeatedly transmitted by the terminal.

Optionally, the processor further implements the following steps when executing the program: in receiving the channel repeatedly transmitted by the terminal, determining other configuration information of each repeated transmission of the terminal by alternately using the two DCIs, wherein the other configuration information comprises at least one of the following: the method comprises the steps of transmitting a precoding matrix indicator (TPMI), a rank RI, a sounding reference Signal Resource Indicator (SRI), a demodulation reference signal (DMRS) port and a Modulation and Coding Scheme (MCS).

Optionally, the processor further implements the following steps when executing the program: determining a reference DCI from the two DCIs in any of the following ways:

It can be understood that, in the embodiment of the present invention, when being executed by the processor 1201, the computer program can implement each process of the embodiment of the channel receiving method shown in fig. 8, and can achieve the same technical effect, and is not described herein again to avoid repetition.

In fig. 12, the bus architecture may include any number of interconnected buses and bridges, with various circuits linking one or more processors, represented by the processor 1201, and memory, represented by the memory 1203. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1202 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.

The processor 1201 is responsible for managing a bus architecture and general processing, and the memory 1203 may store data used by the processor 1201 in performing operations.

It should be noted that the terminal in this embodiment is a base station corresponding to the method shown in fig. 8, and the implementation manners in the above embodiments are all applied to this base station. In the base station, the transceiver 1202 and the memory 1203, and the transceiver 1202 and the processor 1201 may be communicatively connected through a bus interface, the function of the processor 1201 may also be implemented by the transceiver 1202, and the function of the transceiver 1202 may also be implemented by the processor 1201. It should be noted that, the base station provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are not repeated herein.

When executed by the processor, the program can implement all the implementation manners in the channel receiving method applied to the base station, and can achieve the same technical effect, and in order to avoid repetition, the detailed description is omitted here.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention.

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

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A method for channel transmission, comprising:

2. The method of claim 1,

the control resource sets CORESET of the two DCIs are respectively related to two control resource set pool indexes with different values, and/or the HARQ process numbers indicated by the two DCIs and/or the New data indicator indicated by the New DCIs are the same.

3. The method of claim 1,

the channel is a Physical Uplink Shared Channel (PUSCH), and the reference configuration information is a redundancy version transmitted by the PUSCH and/or time domain resource information transmitted by the PUSCH.

4. The method of claim 3, wherein the performing the repeated transmission of the channel according to the reference configuration information of the repeated transmission of the channel comprises:

5. The method of claim 1,

the channel is a Physical Uplink Control Channel (PUCCH), and the reference configuration information is a PUCCH Resource Identifier (PRI) and/or a PDSCH-to-HARQ feedback timing indicator.

6. The method of claim 5, wherein the performing the repeated transmission of the channel according to the reference configuration information of the repeated transmission of the channel comprises:

7. The method of any one of claims 1 to 6,

in the repeated transmission of the channel, determining other configuration information of each repeated transmission by alternately using the two DCIs, wherein the other configuration information comprises at least one of the following: the method comprises the steps of transmitting a precoding matrix indicator (TPMI), a rank RI, a sounding reference Signal Resource Indicator (SRI), a demodulation reference signal (DMRS) port and a Modulation and Coding Scheme (MCS).

8. The method according to any of claims 1 to 6, wherein said determining a reference DCI from two received DCIs is any of:

9. The method of claim 8,

10. The method of claim 8,

and when the monitoring occasions of the two PDCCHs are the same, determining a second control resource set pool index with a larger or smaller value from the two control resource set pool indexes, and determining the DCI on the control resource set associated with the second control resource set pool index as the reference DCI.

11. A channel receiving method, comprising:

12. The method of claim 11,

13. The method of claim 11,

14. The method as claimed in claim 13, wherein said receiving the channel repeatedly transmitted by the terminal according to the reference configuration information repeatedly transmitted by the channel comprises:

15. The method of claim 11,

16. The method as claimed in claim 15, wherein said receiving the channel repeatedly transmitted by the terminal according to the reference configuration information repeatedly transmitted by the channel comprises:

17. The method of any one of claims 11 to 16,

in receiving the channel repeatedly transmitted by the terminal, determining other configuration information of each repeated transmission of the terminal by alternately using the two DCIs, wherein the other configuration information comprises at least one of the following: the method comprises the steps of transmitting a precoding matrix indicator (TPMI), a rank RI, a sounding reference Signal Resource Indicator (SRI), a demodulation reference signal (DMRS) port and a Modulation and Coding Scheme (MCS).

18. The method according to any of claims 11 to 16, wherein said determining a reference DCI from two DCIs sent to a terminal is any of:

19. The method of claim 18,

20. The method of claim 18,

21. A terminal, comprising:

22. The terminal of claim 21,

23. The terminal of claim 21,

24. The terminal of claim 21,

the transceiver is further configured to determine, in the repeated transmission of the channel, a redundancy version for each repeated transmission according to the PUSCH transmission redundancy version indicated by the reference DCI.

25. The terminal of claim 21,

26. The terminal of claim 25,

the transceiver is further configured to determine, during the repeated transmission of the channel, a transmission resource of the PUCCH according to the PRI and/or the PDSCH-to-HARQ _ feedback timing indicator indicated by the reference DCI.

27. The terminal according to any of the claims 21 to 26,

the transceiver is further configured to determine other configuration information for each repeated transmission by alternately using the two DCIs in the repeated transmission of the channel, where the other configuration information includes at least one of: the method comprises the steps of transmitting a precoding matrix indicator (TPMI), a rank RI, a sounding reference Signal Resource Indicator (SRI), a demodulation reference signal (DMRS) port and a Modulation and Coding Scheme (MCS).

28. The terminal of any of claims 21 to 26, wherein the processor is further configured to determine a reference DCI from two DCIs in any one of:

29. A terminal, comprising:

30. A terminal, comprising: processor, memory and program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the channel transmission method according to any of claims 1 to 10.

31. A base station, comprising:

32. The base station of claim 31,

33. The base station of claim 31,

34. The base station of claim 31,

the transceiver is further configured to determine, during receiving the channel repeatedly transmitted by the terminal, a redundancy version repeatedly transmitted by the terminal each time according to the PUSCH transmission redundancy version indicated by the reference DCI.

35. The base station of claim 31,

36. The base station of claim 35,

the transceiver is further configured to determine a transmission resource of the PUCCH according to the PRI and/or the PDSCH-to-HARQ _ feedback timing indicator indicated by the reference DCI when receiving the channel repeatedly transmitted by the terminal.

37. The base station according to any of claims 31 to 36,

the transceiver is further configured to determine other configuration information of each repeated transmission of the terminal by alternately using the two DCIs in receiving the channel of the repeated transmission of the terminal, where the other configuration information includes at least one of: the method comprises the steps of transmitting a precoding matrix indicator (TPMI), a rank RI, a sounding reference Signal Resource Indicator (SRI), a demodulation reference signal (DMRS) port and a Modulation and Coding Scheme (MCS).

38. The base station according to any of claims 31 to 36,

the processor is further configured to determine a reference DCI from the two DCIs according to any one of the following manners:

39. A base station comprising a transceiver and a processor, wherein,

40. A base station, comprising: processor, memory and a program stored on the memory and executable on the processor, which program, when executed by the processor, carries out the steps of the channel receiving method according to any one of claims 11 to 20.

41. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 20.