CN113287272B

CN113287272B - Data transmission processing method, device and storage medium

Info

Publication number: CN113287272B
Application number: CN201980087930.6A
Authority: CN
Inventors: 陈文洪
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2023-04-28
Anticipated expiration: 2039-06-18
Also published as: CN113287272A; WO2020252669A1

Abstract

The invention discloses a data transmission processing method, which comprises the following steps: the terminal equipment determines rate matching parameters corresponding to at least two data transmissions scheduled by downlink control information, wherein the data transmissions are physical downlink shared channels or transmission layers; and the terminal equipment respectively carries out rate de-matching on the at least two data transmissions based on the rate matching parameters. The invention also discloses another data transmission processing method, equipment and a storage medium.

Description

Data transmission processing method, device and storage medium

Technical Field

The present invention relates to the field of wireless communications technologies, and in particular, to a data transmission processing method, a device, and a storage medium.

Background

In the related art, for a plurality of downlink transmissions scheduled by the same physical downlink control channel (Physical Downlink Control Channel, PDCCH), the downlink transmissions may come from different Transmission/Reception points (TRP), and different TRP corresponds to different physical resources. Therefore, how to perform rate matching and de-rate matching on multiple downlink transmissions scheduled by the same PDCCH can improve scheduling flexibility and data transmission performance, and no effective solution exists at present.

Disclosure of Invention

In order to solve the technical problems, embodiments of the present invention provide a data transmission processing method, a device, and a storage medium, which can improve scheduling flexibility and data transmission performance.

In a first aspect, an embodiment of the present invention provides a data transmission processing method, including: the terminal equipment determines rate matching parameters respectively corresponding to at least two data transmissions scheduled by downlink control information (Downlink Control Information, DCI), wherein the data transmissions comprise a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) or a transmission layer; and the terminal equipment respectively carries out rate de-matching on the at least two data transmissions based on the rate matching parameters.

In a second aspect, an embodiment of the present invention provides a data transmission processing method, including: the network equipment determines rate matching parameters corresponding to at least two data transmissions scheduled by DCI respectively, wherein the data transmissions comprise a PDSCH or a transmission layer; and the network equipment respectively carries out rate matching on the at least two data transmissions based on the rate matching parameters.

In a third aspect, an embodiment of the present invention provides a terminal device, including: a first determining unit, configured to determine rate matching parameters corresponding to at least two data transmissions scheduled by one DCI, where the data transmissions are PDSCH or a transmission layer;

And the first processing unit is configured to perform rate de-matching on the at least two data transmissions respectively based on the rate matching parameters.

In a fourth aspect, an embodiment of the present invention provides a network device, including: a second determining unit, configured to determine rate matching parameters corresponding to at least two data transmissions scheduled by one DCI, where the data transmissions include a PDSCH or a transport layer;

and the second processing unit is configured to perform rate matching on the at least two data transmissions respectively based on the rate matching parameters.

In a fifth aspect, an embodiment of the present invention provides a terminal device, including a processor and a memory for storing a computer program capable of running on the processor, where the processor is configured to execute steps of a data transmission processing method executed by the terminal device when the computer program is run.

In a sixth aspect, an embodiment of the present invention provides a network device, including a processor and a memory for storing a computer program capable of running on the processor, where the processor is configured to execute steps of a data transmission processing method executed by the network device when the computer program is run.

In a seventh aspect, an embodiment of the present invention provides a storage medium storing an executable program, where the executable program, when executed by a processor, implements the data transmission processing method executed by the terminal device.

In an eighth aspect, an embodiment of the present invention provides a storage medium storing an executable program, where the executable program when executed by a processor implements the data transmission processing method executed by the network device.

The data transmission processing method provided by the embodiment of the invention comprises the following steps: the terminal equipment determines rate matching parameters corresponding to at least two data transmissions scheduled by one DCI respectively; and the terminal equipment respectively carries out rate de-matching on the at least two data transmissions based on the rate matching parameters. The network equipment determines rate matching parameters corresponding to at least two data transmissions scheduled by DCI, wherein the data transmissions comprise PDSCH or a transmission layer; and the network equipment respectively carries out rate matching on the at least two data transmissions based on the rate matching parameters. In the embodiment of the invention, when one DCI is adopted to schedule the data transmission from different TRPs, the data transmission of different TRPs can be subjected to rate matching or de-rate matching by adopting the independent rate matching parameters corresponding to each TRP, so that the scheduling flexibility is improved, and the optimal transmission performance is achieved. In one aspect, data transmission transmitted through one TRP only needs to perform rate matching on a common reference signal (Common Reference Signal, CRS) transmitted by the TRP itself, and does not need to perform rate matching on all TRP transmitted CRSs participating in transmission, so that available physical resources can be increased. On the other hand, the data transmission sent by different TRPs adopts different rate matching resources, so that the interference on the data transmission can be reduced as much as possible while the efficiency of the rate matching resources is ensured.

Drawings

Fig. 1a is a schematic diagram of a terminal device feeding back ACK/NACK to a network device according to the present invention;

fig. 1b is another schematic diagram of a terminal device feeding back ACK/NACK to a network device according to the present invention;

fig. 2 is a diagram illustrating transmission of PDSCH according to the present invention;

fig. 3 is a schematic diagram of PDSCH retransmission according to the present invention;

fig. 4 is another schematic diagram of PDSCH retransmission according to the present invention;

FIG. 5 is a schematic diagram of a process flow for downstream beam management in accordance with the present invention;

fig. 6 is a schematic diagram of an alternative processing flow of a method for processing a radio resource control message according to an embodiment of the present invention;

fig. 7 is a schematic diagram of an alternative processing flow of a data transmission processing method applied to a terminal device according to an embodiment of the present invention;

fig. 8 is a schematic diagram illustrating a PDSCH repeated transmission employing different rate matching parameters according to an embodiment of the present invention;

FIG. 9 is a diagram illustrating different rate matching parameters for different CDM groups according to an embodiment of the present invention;

FIG. 10 is a schematic diagram of the present invention employing different rate matching parameters for different TCI states;

fig. 11 is a schematic diagram of using different rate matching parameters for occupying different frequency domain resources according to an embodiment of the present invention;

fig. 12 is a schematic diagram of using different rate matching parameters for occupying different time domain resources according to an embodiment of the present invention;

Fig. 13 is a schematic diagram of an alternative processing flow of a data transmission processing method applied to a network device according to an embodiment of the present invention;

fig. 14 is a schematic diagram of yet another alternative processing flow of the data transmission processing method according to the embodiment of the present invention;

fig. 15 is a schematic diagram of a composition structure of a terminal device according to an embodiment of the present invention;

fig. 16 is a schematic diagram of a composition structure of a network device according to an embodiment of the present invention;

fig. 17 is a schematic diagram of a hardware composition structure of an electronic device according to an embodiment of the present invention.

Detailed Description

So that the manner in which the features and techniques of the embodiments of the present invention can be understood in more detail, a more particular description of the invention, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the present invention.

Before explaining the data transmission processing method provided by the embodiment of the invention in detail, a brief description of related art data processing procedure is provided.

A New Radio (NR) system introduces a downlink incoherent transmission based on a plurality of TRPs. Wherein the backhaul (backhaul) connection between TRPs may be ideal or non-ideal; for an ideal backhaul, information interaction can be rapidly and dynamically carried out among all TRPs; for non-ideal backhaul, information interaction between TRPs can only be performed quasi-statically due to larger time delay. In downlink incoherent transmission, multiple TRPs may independently schedule PDSCH transmission of one terminal device using different control channels, and the scheduled PDSCH may be transmitted in the same time slot or different time slots. The terminal device needs to support simultaneous reception of PDCCH and PDSCH from different TRPs. A schematic diagram of the terminal device feeding back acknowledgement/non-acknowledgement (ACK/NACK) to the network device, as shown in fig. 1a, the ACK/NACK may be fed back to TRP1 and TRP2 corresponding to different PDSCH transmission respectively; the terminal device feeds back ACK/NACK to the network device, as shown in fig. 1b, and may also combine all ACK/NACKs and report to one TRP, as reported to TRP1. The ACK/NACK feedback manner shown in fig. 1a may be applied to two scenarios, that is, ideal backhaul and non-ideal backhaul; the ACK/NACK feedback scheme shown in fig. 1b can only be applied to an ideal backhaul scenario. Wherein PDSCH transmitted by different TRPs may carry the same data; in this way, the transmission reliability of PDSCH can be further improved through diversity transmission of a plurality of TRPs. At this time, the terminal device only needs to report one ACK/NACK for multiple PDSCH carrying the same data.

In one transmission scheme, DCI transmitted by different TRPs for scheduling PDSCH may be carried by different sets of control resources (CORESETs), i.e., a network device configures multiple CORESETs, each TRP being scheduled with a respective CORESET.

In another transmission manner, as shown in fig. 2, multiple TRPs may use the same DCI to schedule PDSCH transmission of one terminal device; wherein different TRPs simultaneously transmit data of different transmission layers. The terminal device needs to support simultaneous reception of PDSCH transmission layers from different TRPs. As shown in the left diagram of fig. 2, data transmission of different TRPs requires configuration of independent transmission configuration indication (Transmission Configuration Indicator, TCI) status and demodulation reference signal (Demodulation Reference Signal, DMRS) ports; if the DMRS port 0 is configured for TRP1, the DMRS port 2 is configured for TRP 2; also, DMRS ports of different TRPs need to belong to different code division multiplexing (Code Division Multiplexing, CDM) groups to ensure orthogonality between ports. In addition, as shown in the right diagram of fig. 2, the network device may dynamically select, according to channel quality, a TRP with better channel condition from TRP1 or TRP2 for transmitting PDSCH to avoid mutual interference, and this transmission mode is called dynamic transmission point switching (Dynamic Point Select, DPS).

In order to improve transmission reliability of PDSCH, repeated transmission of PDSCH is introduced in NR systems. That is, PDSCH carrying the same data is transmitted multiple times through different time slots or TRP or redundancy version, so as to obtain diversity gain and reduce false detection probability (Block Error Ratio, BLER). An illustration of PDSCH retransmission, which may occur over multiple time slots, is shown in fig. 3. Another illustration of PDSCH retransmission may be performed on multiple TRPs, as shown in fig. 4, such as on TRP1 and TRP 2. For repetition of multiple slots, one DCI may schedule multiple PDSCH carrying the same data to be transmitted on consecutive multiple slots, using the same frequency domain resources. For repetition of multiple TRPs, PDSCH carrying the same data is transmitted separately on different TRPs, different beams may be employed (where multiple TCI states need to be indicated in one DCI, each for one repetition of transmission). The repetition of multiple TRPs may also be combined with the repetition of multiple time slots, with successive time slots being used for transmission, with different TRPs being used for transmission in different time slots.

In an NR system, a network device may employ an analog beam to transmit a downlink PDSCH. Prior to analog beamforming, the network device needs to determine the beam to use through a downstream beam management procedure, which may be based on channel state information reference signal (Channel State Information Reference Signal, CSI-RS) resources or synchronization signal blocks (Synchronization Signal Block, SSB). As shown in fig. 5, the network device sends multiple SSBs or multiple CSI-RS resources for beam management, the terminal device performs measurement based on the SSBs or CSI-RS resources sent by the network device, selects multiple SSBs or CSI-RS resources with the best reception quality, and reports the corresponding SSB index or CSI-RS resource index and the corresponding reference signal received power (Reference Signal Receiving Power, RSRP) to the network device. The network equipment obtains an optimal SSB or CSI-RS resource according to the report of the terminal equipment, and determines a sending beam used by the optimal SSB or CSI-RS resource as a sending beam used for downlink transmission, thereby being used for transmitting a downlink control channel or a data channel. Before transmitting the downlink control channel or the data channel, the network device indicates a corresponding Quasi Co-located (QCL) reference signal to the terminal device through the TCI state, so that the terminal device can receive the corresponding downlink control channel or the data channel by adopting a receiving beam used for receiving the QCL reference signal before.

The applicant finds that, in the process of implementing data transmission, for downlink transmission scheduled by the same PDCCH, terminal equipment only uses the same group of rate matching parameters to perform rate de-matching; such as a CRS configuration, a zero-power CSI-RS configuration, and a Rate-matching pattern (Rate-matching pattern). However, in the case where the downlink transmission is from different TRPs, the different TRPs may have different CRS positions, different CSI-RS positions, etc.; accordingly, rate matching is also required for different physical resources.

In view of the foregoing, the present invention provides a data transmission processing method, which can be applied to various communication systems, for example: global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) systems, general packet radio service (General Packet Radio Service, GPRS), LTE systems, LTE frequency division duplex (Frequency Division Duplex, FDD) systems, LTE time division duplex (Time Division Duplex, TDD), universal mobile telecommunications system (Universal Mobile Telecommunication System, UMTS), worldwide interoperability for microwave access (Worldwide Interoperability for Microwave Access, wiMAX) communication systems, or 5G systems, etc.

Exemplary, a communication system 100 to which embodiments of the present application apply is shown in fig. 6. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within the coverage area. Alternatively, the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device may be a mobile switching center, a relay station, an access point, a vehicle device, a wearable device, a hub, a switch, a bridge, a router, a network-side device in a 5G network, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.

The communication system 100 further comprises at least one terminal device 120 located within the coverage area of the network device 110. "terminal device" as used herein includes, but is not limited to, a connection via a wireline, such as via a public-switched telephone network (Public Switched Telephone Networks, PSTN), a digital subscriber line (Digital Subscriber Line, DSL), a digital cable, a direct cable connection; and/or another data connection/network; and/or via a wireless interface, e.g., for a cellular network, a wireless local area network (Wireless Local Area Network, WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter; and/or means of the other terminal device arranged to receive/transmit communication signals; and/or internet of things (Internet of Things, ioT) devices. Terminal devices arranged to communicate over a wireless interface may be referred to as "wireless communication terminals", "wireless terminals" or "mobile terminals". Examples of mobile terminals include, but are not limited to, satellites or cellular telephones; a personal communications system (Personal Communications System, PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; a PDA that can include a radiotelephone, pager, internet/intranet access, web browser, organizer, calendar, and/or a global positioning system (Global Positioning System, GPS) receiver; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A terminal device may refer to an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network or a terminal device in a future evolved PLMN, etc.

Alternatively, direct terminal (D2D) communication may be performed between the terminal devices 120.

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

Fig. 6 illustrates one network device and two terminal devices by way of example, and alternatively, the communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage area of each network device, which is not limited in this embodiment of the present application.

Optionally, the communication system 100 may further include a network controller, a mobility management entity, and other network entities, which are not limited in this embodiment of the present application.

It should be understood that a device having a communication function in a network/system in an embodiment of the present application may be referred to as a communication device. Taking the communication system 100 shown in fig. 6 as an example, the communication device may include the network device 110 and the terminal device 120 with communication functions, where the network device 110 and the terminal device 120 may be the specific devices described above, which are not described herein again; the communication device may also include other devices in the communication system 100, such as a network controller, a mobility management entity, and other network entities, which are not limited in this embodiment of the present application.

An optional processing flow of the data transmission processing method applied to the terminal device provided by the embodiment of the invention, as shown in fig. 7, includes the following steps:

in step S201, the terminal device determines rate matching parameters corresponding to at least two data transmissions scheduled by one DCI.

In the embodiment of the present invention, the data transmission includes a PDSCH or a transmission layer. In the case that the data transmission is PDSCH, at least two data transmissions scheduled by the one DCI occupy different time domain resources; alternatively, at least two data transmissions of the one DCI schedule occupy different frequency domain resources within the same time domain resource. At least two data transmissions, such as one DCI schedule, occupy different subbands in the same slot or occupy different frequency bands in one slot. And in the case that the data transmission is a transmission layer, at least two data transmissions scheduled by the DCI occupy the same time domain resource. Different transport layers, such as one DCI schedule, occupy the same orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbol and may occupy the same PRB or occupy different PRBs on the same OFDM symbol.

In some embodiments, the terminal device receives a higher layer signaling sent by the network device, where the higher layer signaling indicates corresponding rate matching parameters for different PDSCH or different transport layers, respectively; optionally, the higher layer signaling is radio resource control (Radio Resource Control, RRC) signaling. In other embodiments, the DCI for scheduling the data transmission includes at least two zero-power CSI-RS configurations, and the terminal device determines at least two zero-power CSI-RS configurations indicated by the indication information, which are rate matching parameters corresponding to the at least two data transmissions, respectively.

In one embodiment of the present invention, different data transmissions of the at least two data transmissions correspond to different rate matching parameters; i.e. different ones of the at least two data transmissions, whether carrying the same data or not, correspond to different rate matching parameters. Or if different data transmissions carry the same data, such as data transmissions in a repeated transmission process, at this time, the different data transmissions correspond to different rate matching parameters. Taking DCI scheduling four repeated transmissions of the same PDSCH (i.e., four PDSCH carrying the same data) as an example, each repeated transmission carries the same data, and different repeated transmissions may correspond to different rate matching parameters. In specific implementation, the PDSCH repeated transmission adopts a schematic diagram of different rate matching parameters, as shown in fig. 8, the rate matching parameters corresponding to each repeated transmission may be different, or the rate matching parameters corresponding to the first part of repeated transmission may be different from the rate matching parameters corresponding to the second part of repeated transmission; wherein the first partial retransmission and the second partial retransmission each comprise at least two retransmissions. At this time, the same rate matching parameters may be used for data transmission carrying different data, such as PDSCH.

In another embodiment of the present invention, data transmission in different transmission modes is adopted in the at least two data transmissions, and different rate matching parameters are corresponding to the data transmission. Wherein, the data transmission adopting different transmission modes can be transmitted by different TRPs. The transmission mode comprises any one of the following steps: DMRS port group for transmission, transmission configuration indication (Transmission Configuration Indicator, TCI) status for transmission, frequency domain resources for transmission and time domain resources for transmission.

In specific implementation, the terminal device may determine rate matching parameters corresponding to data transmission in different transmission modes according to rate matching parameters configured by the network device through higher layer signaling for data transmission in different transmission modes. For example, the network device may configure different LTE CRS patterns for PDSCH or a transmission layer adopting different transmission modes as a rate matching parameter, or configure different PDSCH rate matching patterns as a rate matching parameter, or configure different ZP CSI-RS resources as a rate matching parameter.

The rate matching parameters of data transmission are described below for different transmission modes.

1) And if the transmission mode is the DMRS port group adopted by transmission, the data transmission adopting different DMRS port groups in the at least two data transmissions corresponds to different rate matching parameters. Here, one DMRS port group may include one or more DMRS ports, for example, one or more DMRS ports in the same CDM group may be included. Specifically, the data transmission using DMRS ports in different CDM groups in the at least two data transmissions may correspond to different rate matching parameters. Different CDM groups employ different rate matching parameters as shown in fig. 9. In the case that different transmission layers of one PDSCH are respectively transmitted using the DMRS port of CDM group 0 and the DMRS port of CDM group 1, the terminal device determines, through RRC parameters transmitted by the network device, that the DMRS port of CDM group 0 corresponds to rate matching parameter configuration 1, and that the DMRS port of CDM group 1 corresponds to rate matching parameter configuration 2, so that the transmission layer using the DMRS port of CDM group 0 corresponds to rate matching parameter configuration 1, and the transmission layer using the DMRS port of CDM group 1 corresponds to rate matching parameter configuration 1. For another example, if the PDSCH transmission employs DMRS ports in CDM group 0, CDM group 1, and CDM group 2, the DMRS ports in CDM group 0 and CDM group 1 may employ the same rate matching parameters, and the DMRS ports in CDM group 2 employ different rate matching parameters than CDM group 0 and CDM group 1.

2) And if the transmission mode is the TCI state adopted by transmission, the data transmission adopting different TCI states in the at least two data transmissions corresponds to different rate matching parameters. For example, the DCI schedules multiple repeated transmissions of PDSCH, different repeated transmissions may employ different TCI states; wherein, the PDSCH in TCI state 0 and the PDSCH in TCI state 1 are adopted, and different high-layer parameters are adopted as rate matching parameters. Different TCI states employ different rate matching parameters as shown in fig. 10. For another example, the DCI schedules multiple transport layer groups (or DCI schedules multiple corresponding DMRS port groups), and different transport layer groups (or different DMRS port groups) may employ different TCI states. The transmission layer group (or DMRS port group) with TCI state 0 and the transmission layer group (or DMRS port group) with TCI state 1 adopt different rate matching parameters, for example, the transmission layer group (or DMRS port group) with TCI state 0 corresponds to the rate matching parameter configuration 1 and the transmission layer group (or DMRS port group) with TCI state 1 corresponds to the rate matching parameter configuration 2. Wherein, a transmission layer group contains at least one transmission layer, a DMRS port group contains at least one DMRS port, and each DMRS port is used for transmitting data of a transmission layer.

3) If the transmission mode is the frequency domain resource adopted by transmission, the data transmission occupying different frequency domain resources in the at least two data transmissions corresponds to different rate matching parameters. For example, if DCI schedules PDSCH on two frequency bands, PDSCH on different frequency bands corresponds to different rate matching parameters. Or if the DCI schedules transmission of two transport layers, where PRBs occupied by a first transport layer and a second transport layer are different, the transport layers on the different PRBs correspond to different rate matching parameters. As shown in fig. 11, DCI schedules data of two transmission layers, transmission layer 0 occupies PRB set 0, transmission layer 1 occupies PRB set 1, transmission layer 0 corresponds to rate matching parameter configuration 1, and transmission layer 1 corresponds to rate matching parameter configuration 2; i.e. transport layer 0 and transport layer 1 correspond to different rate matching parameters, respectively.

4) And if the transmission mode is the time domain resource adopted by transmission, the data transmission occupying different time domain resources in the at least two data transmissions corresponds to different rate matching parameters. For example, data transmissions on different time slots or different mini-slots of the at least two data transmissions correspond to different rate matching parameters; wherein one mini-slot occupies at least one OFDM symbol within one slot. Alternatively, PDSCH on one slot group or one mini slot group corresponds to one rate matching parameter. Schematic diagram of occupying different time domain resources and adopting different rate matching parameters, as shown in fig. 12, one DCI schedules PDSCH repeated transmission on four slots, the first slot and the third slot correspond to rate matching parameter configuration 1, and the second slot and the fourth slot correspond to rate matching parameter configuration 2; i.e. the odd and even time slots respectively correspond to different rate matching parameters.

In an embodiment of the present invention, the rate matching parameter includes at least one of the following: LTE CRS pattern for rate matching, PDSCH rate matching pattern, and Zero Power (ZP) CSI-RS.

The LTE CRS pattern used for rate matching is physical resources occupied by LTE CRS; e.g., LTE-CRS-To Match Around configured by RRC parameters. The PDSCH rate matching pattern is a physical resource dedicated for PDSCH rate matching; such as Rate Match Pattern or Rate Match Pattern Group configured by RRC parameters. The ZP CSI-RS resource is configured for the CSI-RS resource without actual CSI-RS transmission; such as ZP-CSI-RS-Resource or ZP-CSI-RS-Resource ID configured by RRC parameters.

Step S202, the terminal equipment respectively carries out rate de-matching on the at least two data transmissions based on the rate matching parameters.

In the embodiment of the invention, the terminal equipment firstly receives at least two data transmissions sent by the network equipment, and then respectively carries out rate de-matching on the at least two data transmissions based on the rate matching parameters. In the specific implementation, the terminal equipment determines the rate matching resource corresponding to each PDSCH or the transmission layer according to the rate matching parameter corresponding to the PDSCH or the transmission layer; and performing de-rate matching of the PDSCH or the transmission layer based on the rate matching resources. For example, the terminal device receives signals of each PDSCH or transport layer on other physical resources than the rate matching resources corresponding to the PDSCH or transport layer. That is, the terminal device assumes that the rate matching resources are not used for transmission of the corresponding PDSCH or transport layer, and thus does not need to receive signals of the PDSCH or transport layer on the rate matching resources. For another example, the terminal device uses other physical resources except the rate matching resources corresponding to each PDSCH or the transmission layer as available transmission resources of the PDSCH or the transmission layer, calculates an actual code rate of performing channel coding on data carried by the PDSCH or the transmission layer, and performs channel decoding on the data according to the code rate.

It should be noted that, the available transmission resources in the embodiments of the present invention are not necessarily all physical resources actually used for data transmission, and also need to consider rate matching of other signals, such as a synchronization channel, a periodic CSI-RS, a DMRS, a control channel, and so on.

An optional processing flow of the data transmission processing method applied to the network device provided in the embodiment of the present invention, as shown in fig. 13, includes the following steps:

in step S301, the network device determines rate matching parameters corresponding to at least two data transmissions scheduled by one DCI.

In the embodiment of the invention, the data transmission comprises a PDSCH or a transmission layer; the at least two data transmissions are each based on a different TRP.

It should be noted that, in the embodiment of the present invention, the descriptions of the rate matching parameters corresponding to at least two data transmissions scheduled by one DCI are the same as the descriptions of the rate matching parameters corresponding to at least two data transmissions scheduled by one DCI in the above step S201, and are not repeated here.

In step S302, the network device performs rate matching on the at least two data transmissions based on the rate matching parameters.

In some embodiments, the network device determines a rate matching resource corresponding to each data transmission based on the rate matching parameters corresponding to at least two data transmissions, respectively; and carrying out rate matching on the data transmission on the rate matching resource corresponding to each data transmission.

In specific implementation, the network device may use other physical resources except the rate matching resource corresponding to the TRP as available transmission resources of the PDSCH or the transmission layer transmitted by the TRP, calculate an actual code rate of performing channel coding on data carried by the PDSCH or the transmission layer, so as to perform channel coding on the data according to the code rate. That is, the network device assumes that the rate matching resources are not used for transmission of the corresponding PDSCH or transport layer, and thus does not need to transmit signals of the PDSCH or transport layer on the rate matching resources.

After performing step S302, the method further comprises:

in step S303, the network device sends the data transmission after rate matching to the terminal device.

In an alternative embodiment of the present invention, the network device sends the data after channel coding to the terminal device on the available transmission resources through the PDSCH or the transmission layer. In particular implementations, a network device transmits a single DCI that is used to schedule PDSCH or a transport layer for transmission of multiple TRPs, respectively.

In some embodiments, one DCI may schedule N PDSCH of N TRP transmissions (one PDSCH per TRP transmission); alternatively, one DCI may schedule M transmission layers of N TRP transmissions (each TRP transmitting one or more of the transmission layers).

Wherein PDSCH transmitted by each of the plurality of TRPs occupies different time domain resources, e.g., occupies different time slots or mini-slots. Alternatively, PDSCH transmitted by each of the plurality of TRPs occupies different frequency domain resources within the same time domain resource, e.g., occupies different subbands in the same time slot. In the embodiment of the present invention, one mini slot may occupy 1 or more OFDM symbols.

Wherein the transmission layers of the respective transmissions of the plurality of TRPs occupy the same time domain resource, e.g., occupy the same OFDM symbol.

In the embodiment of the present invention, after step S301, the method further includes:

step S300, the network device sends a high-layer signaling to the terminal device, wherein the high-layer signaling is used for indicating different rate matching parameters corresponding to the at least two data transmissions respectively.

In the embodiment of the invention, the network equipment firstly configures a rate matching parameter corresponding to each TRP for the PDSCH or the transmission layer transmitted by each TRP through a high-layer signaling.

In particular implementations, the network device may configure different rate matching parameters for PDSCH or transport layers employing different transmission schemes. Wherein, PDSCH or transmission layer adopting different transmission modes can be transmitted by different TRPs.

In some embodiments, at least one of the following may be employed to configure rate matching parameters for PDSCH or transport layers of different transmission modes:

1) Different rate matching parameters are configured for PDSCH or transport layers employing different DMRS port groups. For example, the PDSCH scheduled by DCI employs DMRS ports in multiple CDM groups for transmission of multiple transmission layers, and the network device may configure different rate matching parameters for the DMRS ports in different CDM groups, i.e., different CDM groups employ different rate matching parameters (e.g., different RRC parameters), so that the corresponding transmission layers employ different rate matching parameters.

2) Different rate matching parameters are configured for PDSCH or transport layers employing different TCI states. For example, a PDSCH or a transport layer employing TCI state 0 employs different RRC parameters as rate matching parameters than a PDSCH or a transport layer employing TCI state 1.

3) Different rate matching parameters are configured for PDSCH or transport layers occupying different frequency domain resources. For example, if one DCI schedules PDSCH transmissions on two frequency bands, the network device configures different rate matching parameters for PDSCH transmissions on different frequency bands.

4) Different rate matching parameters are configured for PDSCH or transport layers occupying different time domain resources. Specifically, PDSCH transmitted on different time slots or different mini-slots may be configured with different rate matching parameters, where one mini-slot occupies several OFDM symbols within one slot. For example, if one DCI schedules PDSCH repeated transmission on four slots, the first two slots and the last two slots are respectively configured with different rate matching parameters.

5) Different rate matching parameters are configured for different PDSCH transmitting the same data. For example, if one DCI schedules four repeated transmissions of PDSCH, each repeated transmission carrying the same data, the network device may configure different rate matching parameters for different repeated transmissions.

In step S300', the network device transmits a DCI to the terminal device.

In the embodiment of the present invention, the DCI may schedule N PDSCH transmitted by N TRPs (one PDSCH transmitted by each TRP); alternatively, the DCI may schedule M transmission layers of N TRP transmissions (each TRP transmitting one or more of the transmission layers).

In some embodiments, PDSCH transmitted by each of the plurality of TRPs occupies different time domain resources, e.g., occupies different time slots or mini-slots. Alternatively, PDSCH transmitted by each of the plurality of TRPs occupies different frequency domain resources within the same time domain resource, e.g., occupies different subbands in the same time slot. In the present invention, one mini slot may occupy several OFDM symbols.

In other embodiments, the transmission layers of the respective transmissions of the plurality of TRPs occupy the same time domain resources, e.g., occupy the same OFDM symbol.

It should be noted that, there is no execution sequence between the step S300 and the step S300', the step S300 may be executed first, and then the step S300' may be executed, or the step S300' may be executed first, and then the step S300 may be executed. Step S300 and step S300' are each performed before step S303.

Taking the example that the rate matching parameter is zero power CSI-RS resource as an example, another optional processing flow of the data transmission processing method, as shown in fig. 14, includes:

in step S401, the network device determines rate matching parameters corresponding to multiple TRPs for PDSCH transmission, where the rate matching parameters are zero-power CSI-RS resources.

In the embodiment of the invention, the network equipment can indicate K candidate zero-power CSI-RS resources to the terminal equipment in advance through RRC signaling. The network device may determine different zero power CSI-RS resources for different TRPs from among the K candidate zero power CSI-RS resources.

Step S402, the terminal device receives, through RRC signaling, K candidate zero-power CSI-RS resources configured by the network device.

In step S403, the network device transmits a DCI to the terminal device, where the DCI is used to schedule PDSCH or a transmission layer transmitted by the plurality of TRPs.

In the embodiment of the invention, the DCI also contains zero-power CSI-RS indication information; the zero-power CSI-RS indication information is used for indicating a plurality of zero-power CSI-RS resources respectively configured for PDSCH or transmission layers respectively transmitted by the plurality of TRPs.

The zero-power CSI-RS indication information in the DCI is used for indicating zero-power CSI-RS resources corresponding to different PDSCH or transmission layers in the multiple PDSCH or transmission layers respectively from the K candidate zero-power CSI-RS resources.

For example, the DCI may indicate M zero-power CSI-RS resources, M > 1 and less than or equal to the number of the plurality of PDSCH or transmission layers.

In step S404, the terminal device determines zero power CSI-RS resources corresponding to different PDSCH or different transmission layers of the DCI schedule according to the zero power CSI-RS indication information.

Specifically, different PDSCH or different transmission layers of the DCI schedule respectively correspond to different zero-power CSI-RS resources indicated by the zero-power CSI-RS indication information, that is, the DCI schedules M different PDSCH or different transmission layers respectively correspond to M zero-power CSI-RS resources. Or, among the multiple PDSCH scheduled by DCI, different PDSCH transmitting the same data corresponds to different zero-power CSI-RS resources indicated by the zero-power CSI-RS indication information.

In specific implementation, the terminal device may determine that different PDSCH or different transmission layers of the DCI schedule each correspond to zero-power CSI-RS resources by at least one of the following methods:

1) And adopting PDSCH or transmission layers of different DMRS port groups to correspond to different zero-power CSI-RS resources indicated by the zero-power CSI-RS indication information. For example, DMRS ports in different CDM groups correspond to different zero-power CSI-RS resources indicated by the indication information, such that the respective transmission layers correspond to different zero-power CSI-RS resources.

2) And adopting PDSCH or transmission layers in different TCI states to correspond to different zero-power CSI-RS resources indicated by the zero-power CSI-RS indication information.

3) PDSCH or transmission layer occupying different frequency domain resources corresponds to different zero power CSI-RS resources indicated by the zero power CSI-RS indication information.

4) PDSCH or transmission layers occupying different time domain resources correspond to different zero power CSI-RS resources indicated by the zero power CSI-RS indication information. For example, PDSCH transmitted on different time slots or different mini-slots corresponds to different zero-power CSI-RS resources indicated by the indication information.

Specifically, reference may be made to the method in step S201.

Step S405, the network device performs rate matching of PDSCH or a transmission layer transmitted by each of the plurality of TRPs according to the zero power CSI-RS resources corresponding to each of the plurality of TRPs.

In specific implementation, the network device performs rate matching on the PDSCH or the transmission layer transmitted by each TRP on the zero-power CSI-RS resource corresponding to the TRP.

For example, the network device uses physical resources other than zero-power CSI-RS resources corresponding to one TRP as available transmission resources of PDSCH or a transmission layer transmitted by the TRP, calculates an actual code rate of channel coding data carried by the PDSCH or the transmission layer, and thus performs channel coding on the data according to the code rate. That is, the network device assumes that the zero-power CSI-RS resources are not used for transmission of the corresponding PDSCH or transport layer, and thus does not need to transmit signals of the corresponding PDSCH or transport layer on the zero-power CSI-RS resources.

In step S406, the network device sends the PDSCH or the transport layer after rate matching to the terminal device.

In some embodiments, the network device sends the channel-coded data to the terminal device through the PDSCH or the transport layer on other physical resources except the zero-power CSI-RS resource.

In step S407, the terminal device uses zero power CSI-RS resources corresponding to the different PDSCH or the transmission layer to perform rate de-matching of the different PDSCH or the different transmission layer.

In specific implementation, the terminal device performs de-rate matching of each PDSCH or transmission layer based on zero-power CSI-RS resources corresponding to the PDSCH or transmission layer.

In some embodiments, the terminal device receives signals of one PDSCH or a transmission layer on other physical resources than the zero-power CSI-RS resource corresponding to the PDSCH or the transmission layer. That is, the terminal device assumes that the zero-power CSI-RS resources are not used for transmission of the corresponding PDSCH or transport layer, and thus does not need to receive signals of the corresponding PDSCH or transport layer on the zero-power CSI-RS resources.

In other embodiments, the terminal device uses physical resources other than zero-power CSI-RS resources corresponding to each PDSCH or the transmission layer as available transmission resources of the PDSCH or the transmission layer, calculates an actual code rate of performing channel coding on data carried by the PDSCH or the transmission layer, and thus performs channel decoding on the data according to the code rate.

It should be noted that the available transmission resources in this embodiment are not necessarily all physical resources actually used for data transmission, and also rate matching of other signals, such as a synchronization channel, a periodic CSI-RS, a DMRS, a control channel, etc., is considered.

In order to implement the data transmission processing method, an embodiment of the present invention provides a terminal device, where a composition structure of the terminal device 500, as shown in fig. 15, includes:

a first determining unit 501 configured to determine rate matching parameters corresponding to at least two data transmissions of one DCI schedule, where the data transmissions include a PDSCH or a transport layer;

the first processing unit 502 is configured to perform rate de-matching on the at least two data transmissions, respectively, based on the rate matching parameters.

In the embodiment of the invention, different data transmission in the at least two data transmissions corresponds to different rate matching parameters; or different data transmission carrying the same data in the at least two data transmissions correspond to different rate matching parameters.

In the embodiment of the invention, the data transmission adopting different transmission modes in the at least two data transmissions corresponds to different rate matching parameters.

In an embodiment of the present invention, the transmission manner includes any one of the following: DMRS port group employed for transmission, TCI state employed for transmission, frequency domain resources employed for transmission, and time domain resources employed for transmission.

In the embodiment of the present invention, in the case that the transmission mode is a DMRS port group adopted for transmission, data transmission adopting different transmission modes in the at least two data transmissions corresponds to different rate matching parameters, including:

and adopting the data transmission of the DMRS ports in different CDM groups in the at least two data transmissions, and corresponding to different rate matching parameters.

In the embodiment of the present invention, in the case that the transmission mode is a time domain resource adopted for transmission, data transmission adopting different transmission modes in the at least two data transmissions corresponds to different rate matching parameters, including:

the data transmission in different time slots or different mini time slots in the at least two data transmissions corresponds to different rate matching parameters; wherein one mini-slot occupies at least one orthogonal frequency division multiplexing OFDM symbol within one slot.

In this embodiment of the present invention, the first determining unit 501 is configured to determine, according to a higher layer signaling sent by a network device, different rate matching parameters corresponding to the at least two data transmissions respectively.

In the embodiment of the present invention, the DCI includes indication information of at least two zero-power channel state information reference signal CSI-RS configurations, and the first determining unit 501 is configured to determine at least two zero-power CSI-RS configurations indicated by the indication information, which are rate matching parameters corresponding to the at least two data transmissions respectively.

In the embodiment of the invention, the data transmission is PDSCH, and at least two data transmissions scheduled by one DCI occupy different time domain resources; alternatively, at least two data transmissions of the one DCI schedule occupy different frequency domain resources within the same time domain resource.

In the embodiment of the present invention, the data transmission is a transmission layer, and at least two data transmissions scheduled by the one DCI occupy the same time domain resource.

In the embodiment of the present invention, the first processing unit 502 is configured to determine a rate matching resource corresponding to each data transmission based on at least two rate matching parameters corresponding to each data transmission; and receiving the data transmission based on physical resources except the rate matching resources corresponding to each data transmission.

In an embodiment of the present invention, the rate matching parameter includes at least one of the following: LTE CRS pattern for rate matching, PDSCH rate matching pattern, and zero-power CSI-RS.

In order to implement the above data transmission processing method, an embodiment of the present invention provides a network device, where the composition structure of the network device 600, as shown in fig. 16, includes:

in the embodiment of the present invention, the second determining unit 601 is configured to determine rate matching parameters corresponding to at least two data transmissions scheduled by one downlink control information DCI, where the data transmissions include a PDSCH or a transmission layer;

the second processing unit 602 is configured to perform rate matching on the at least two data transmissions, respectively, based on the rate matching parameters.

In the embodiment of the present invention, the at least two data transmissions are respectively transmitted based on different TRPs.

In the embodiment of the present invention, the DCI includes at least two zero-power CSI-RS configuration indication information, where the at least two zero-power CSI-RS configurations indicated by the indication information are rate matching parameters corresponding to the at least two data transmissions respectively.

In the embodiment of the invention, different data transmission carrying different data in the at least two data transmission corresponds to different rate matching parameters; or different data transmission carrying the same data in the at least two data transmissions correspond to different rate matching parameters.

In the embodiment of the present invention, the transmission mode is any one of the following: DMRS port group employed for transmission, TCI state employed for transmission, frequency domain resources employed for transmission, and time domain resources employed for transmission.

the data employing DMRS ports in different CDM groups in the at least two data transmissions correspond to different rate matching parameters.

the data transmission in different time slots or different mini time slots in the at least two data transmissions corresponds to different rate matching parameters; wherein one mini-slot occupies at least one OFDM symbol within one slot.

In an embodiment of the present invention, the network device 600 further includes:

the first sending unit 603 is configured to send a higher layer signaling to the terminal device, where the higher layer signaling is used to indicate different rate matching parameters corresponding to the at least two data transmissions respectively.

In the embodiment of the present invention, the second processing unit 602 is configured to determine, based on the rate matching parameters corresponding to at least two data transmissions, a rate matching resource corresponding to each data transmission; and carrying out rate matching on the data transmission on the rate matching resource corresponding to each data transmission.

the second transmitting unit 604 is configured to transmit the data transmission after the rate matching.

The embodiment of the invention also provides the terminal equipment, which comprises a processor and a memory for storing a computer program capable of running on the processor, wherein the processor is used for executing the steps of the data transmission processing method executed by the terminal equipment when the computer program runs.

The embodiment of the invention also provides a network device, which comprises a processor and a memory for storing a computer program capable of running on the processor, wherein the processor is used for executing the steps of the data transmission processing method executed by the network device when the computer program runs.

Fig. 17 is a schematic diagram of a hardware composition structure of an electronic device (a terminal device and a network device) according to an embodiment of the present invention, and an electronic device 700 includes: at least one processor 701, memory 702, and at least one network interface 704. The various components in the electronic device 700 are coupled together by a bus system 705. It is appreciated that the bus system 705 is used to enable connected communications between these components. The bus system 705 includes a power bus, a control bus, and a status signal bus in addition to the data bus. But for clarity of illustration, the various buses are labeled as bus system 705 in fig. 17.

It is to be appreciated that the memory 702 can be either volatile memory or nonvolatile memory, and can include both volatile and nonvolatile memory. Wherein the nonvolatile Memory may be ROM, programmable read-Only Memory (PROM, programmable Read-Only Memory), erasable programmable read-Only Memory (EPROM, erasable Programmable Read-Only Memory), electrically erasable programmable read-Only Memory (EEPROM, electrically Erasable Programmable Read-Only Memory), magnetic random access Memory (FRAM, ferromagnetic random access Memory), flash Memory (Flash Memory), magnetic surface Memory, optical disk, or compact disk read-Only Memory (CD-ROM, compact Disc Read-Only Memory); the magnetic surface memory may be a disk memory or a tape memory. The volatile memory may be random access memory (RAM, random Access Memory), which acts as external cache memory. By way of example, and not limitation, many forms of RAM are available, such as static random access memory (SRAM, static Random Access Memory), synchronous static random access memory (SSRAM, synchronous Static Random Access Memory), dynamic random access memory (DRAM, dynamic Random Access Memory), synchronous dynamic random access memory (SDRAM, synchronous Dynamic Random Access Memory), double data rate synchronous dynamic random access memory (ddr SDRAM, double Data Rate Synchronous Dynamic Random Access Memory), enhanced synchronous dynamic random access memory (ESDRAM, enhanced Synchronous Dynamic Random Access Memory), synchronous link dynamic random access memory (SLDRAM, syncLink Dynamic Random Access Memory), direct memory bus random access memory (DRRAM, direct Rambus Random Access Memory). The memory 702 described in embodiments of the present invention is intended to comprise, without being limited to, these and any other suitable types of memory.

The memory 702 in embodiments of the invention is used to store various types of data to support the operation of the electronic device 700. Examples of such data include: any computer program for operating on the electronic device 700, such as application 7022. A program for implementing the method of the embodiment of the present invention may be contained in the application program 7022.

The method disclosed in the above embodiment of the present invention may be applied to the processor 701 or implemented by the processor 701. The processor 701 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in the processor 701 or by instructions in the form of software. The processor 701 may be a general purpose processor, a digital signal processor (DSP, digital Signal Processor), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The processor 701 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. The general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiment of the invention can be directly embodied in the hardware of the decoding processor or can be implemented by combining hardware and software modules in the decoding processor. The software modules may be located in a storage medium in a memory 702. The processor 701 reads information in the memory 702 and, in combination with its hardware, performs the steps of the method as described above.

In an exemplary embodiment, the electronic device 700 can be implemented by one or more application specific integrated circuits (ASIC, application Specific Integrated Circuit), DSP, programmable logic device (PLD, programmable Logic Device), complex programmable logic device (CPLD, complex Programmable Logic Device), FPGA, general purpose processor, controller, MCU, MPU, or other electronic components for performing the aforementioned methods.

The embodiment of the application also provides a storage medium for storing the computer program.

Optionally, the storage medium may be applied to a terminal device in the embodiments of the present application, and the computer program makes a computer execute corresponding flows in each method in the embodiments of the present application, which are not described herein for brevity.

Optionally, the storage medium may be applied to a network device in the embodiments of the present application, and the computer program causes a computer to execute corresponding flows in the methods in the embodiments of the present application, which are not described herein for brevity.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

The above description is not intended to limit the scope of the invention, but is intended to cover any modifications, equivalents, and improvements within the spirit and principles of the invention.

Claims

1. A data transmission processing method, the method comprising:

The method comprises the steps that terminal equipment determines rate matching parameters respectively corresponding to at least two data transmissions scheduled by downlink control information DCI, wherein the data transmissions comprise a physical downlink shared channel PDSCH or a transmission layer;

and the terminal equipment respectively carries out rate de-matching on the at least two data transmissions based on the rate matching parameters.

2. The method of claim 1, wherein different ones of the at least two data transmissions correspond to different rate matching parameters;

or different data transmission carrying the same data in the at least two data transmissions correspond to different rate matching parameters.

3. The method of claim 1, wherein data transmissions of the at least two data transmissions using different transmission modes correspond to different rate matching parameters.

4. A method according to claim 3, wherein the transmission means comprises any one of:

a demodulation reference signal (DMRS) port group adopted by transmission;

the transmission configuration adopted by the transmission indicates the TCI state;

transmitting the adopted frequency domain resource;

and transmitting the adopted time domain resources.

5. The method according to claim 3 or 4, wherein, in the case that the transmission mode is the DMRS port group adopted by the transmission, the data transmission adopting different transmission modes in the at least two data transmissions corresponds to different rate matching parameters, including:

And adopting data transmission of the DMRS ports in different code division multiplexing CDM groups in the at least two data transmissions, and corresponding to different rate matching parameters.

6. The method according to claim 3 or 4, wherein, in the case that the transmission mode is a time domain resource adopted by transmission, the data transmission adopting different transmission modes in the at least two data transmissions corresponds to different rate matching parameters, including:

the data transmission in different time slots or different mini time slots in the at least two data transmissions corresponds to different rate matching parameters;

wherein one mini-slot occupies at least one orthogonal frequency division multiplexing OFDM symbol within one slot.

7. The method according to any one of claims 1 to 4, wherein the determining, by the terminal device, rate matching parameters respectively corresponding to at least two data transmissions of one DCI schedule includes:

and the terminal equipment determines different rate matching parameters corresponding to the at least two data transmissions respectively according to the high-layer signaling sent by the network equipment.

8. The method according to any one of claims 1 to 4, wherein the determining, by the terminal device, rate matching parameters respectively corresponding to at least two data transmissions of one DCI schedule includes:

The DCI comprises indication information of at least two zero-power channel state information reference signal (CSI-RS) configurations, and the terminal equipment determines the at least two zero-power CSI-RS configurations indicated by the indication information as rate matching parameters corresponding to the at least two data transmissions respectively.

9. The method of any of claims 1-4, wherein the data transmission is a PDSCH, at least two data transmissions of the one DCI schedule occupying different time domain resources;

alternatively, at least two data transmissions of the one DCI schedule occupy different frequency domain resources within the same time domain resource.

10. The method of any of claims 1-4, wherein the data transmission is a transport layer, and at least two data transmissions of the one DCI schedule occupy the same time-domain resource.

11. The method according to any one of claims 1 to 4, wherein the terminal device de-rate-matches the at least two data transmissions based on the rate-matching parameters, respectively, comprising:

the terminal equipment determines the rate matching resource corresponding to each data transmission based on the rate matching parameters corresponding to at least two data transmissions respectively;

And receiving the data transmission based on physical resources except the rate matching resources corresponding to each data transmission.

12. The method of any of claims 1-4, wherein the rate matching parameters comprise at least one of:

long term evolution common reference signal LTE CRS pattern for rate matching;

PDSCH rate matching pattern;

zero power CSI-RS.

13. A data transmission processing method, the method comprising:

the network equipment determines rate matching parameters respectively corresponding to at least two data transmissions scheduled by downlink control information DCI, wherein the data transmissions comprise a physical downlink shared channel PDSCH or a transmission layer;

and the network equipment respectively carries out rate matching on the at least two data transmissions based on the rate matching parameters.

14. The method of claim 13, wherein the at least two data transmissions are transmitted separately based on different transmission reception points TRP.

15. The method of claim 13 or 14, wherein the DCI includes indication information of at least two zero-power channel state information reference signal, CSI-RS, configurations indicated by the indication information, being rate matching parameters corresponding to the at least two data transmissions, respectively.

16. The method according to claim 13 or 14, wherein different ones of the at least two data transmissions carry different data, corresponding to different rate matching parameters;

17. The method according to claim 13 or 14, wherein data transmissions of different transmission modes are adopted in the at least two data transmissions, corresponding to different rate matching parameters.

18. The method of claim 17, wherein the transmission mode is any one of the following:

a demodulation reference signal (DMRS) port group adopted by transmission;

transmitting the adopted frequency domain resource;

and transmitting the adopted time domain resources.

19. The method of claim 17, wherein, in the case where the transmission manner is a DMRS port group employed for transmission, data transmissions employing different transmission manners of the at least two data transmissions correspond to different rate matching parameters, comprising:

and adopting data of the DMRS ports in different code division multiplexing CDM groups to correspond to different rate matching parameters in the at least two data transmissions.

20. The method of claim 17, wherein, in the case where the transmission mode is a time domain resource employed for transmission, the data transmission employing different transmission modes of the at least two data transmissions corresponds to different rate matching parameters, comprising:

wherein one mini-slot occupies at least one OFDM symbol within one slot.

21. The method according to claim 13 or 14, wherein the method further comprises:

the network device sends a high-layer signaling to the terminal device, wherein the high-layer signaling is used for indicating different rate matching parameters corresponding to the at least two data transmissions respectively.

22. The method of claim 13 or 14, wherein the data transmission is a PDSCH, at least two data transmissions of the one DCI schedule occupying different time-domain resources;

23. The method of claim 13 or 14, wherein the data transmission is a transport layer, and at least two data transmissions of the one DCI schedule occupy the same time-domain resource.

24. The method according to claim 13 or 14, wherein the network device rate-matches the at least two data transmissions, respectively, based on the rate-matching parameters, comprising:

the network equipment determines the rate matching resource corresponding to each data transmission based on the rate matching parameters corresponding to at least two data transmissions respectively;

and carrying out rate matching on the data transmission on the rate matching resource corresponding to each data transmission.

25. The method according to claim 13 or 14, wherein the method further comprises:

the network device transmits the data transmission after the rate matching.

26. The method of claim 13 or 14, wherein the rate matching parameters include at least one of:

long term evolution common reference signal LTE CRS pattern for rate matching;

PDSCH rate matching pattern;

zero power CSI-RS.

27. A terminal device, the terminal device comprising:

a first determining unit, configured to determine rate matching parameters corresponding to at least two data transmissions scheduled by one downlink control information DCI, where the data transmissions are a physical downlink shared channel PDSCH or a transport layer;

28. The terminal device of claim 27, wherein different ones of the at least two data transmissions correspond to different rate matching parameters;

29. The terminal device of claim 27, wherein data transmissions of the at least two data transmissions using different transmission modes correspond to different rate matching parameters.

30. The terminal device of claim 29, wherein the transmission manner includes any one of:

a demodulation reference signal (DMRS) port group adopted by transmission;

transmitting the adopted frequency domain resource;

and transmitting the adopted time domain resources.

31. The terminal device of claim 29 or 30, wherein, in the case that the transmission manner is a DMRS port group adopted by transmission, data transmission adopting different transmission manners in the at least two data transmissions corresponds to different rate matching parameters, including:

32. The terminal device according to claim 29 or 30, wherein, in the case that the transmission manner is a time domain resource adopted by transmission, data transmission adopting different transmission manners in the at least two data transmissions corresponds to different rate matching parameters, including:

33. The terminal device according to any of claims 27 to 30, wherein the first determining unit is configured to determine different rate matching parameters corresponding to the at least two data transmissions, respectively, according to higher layer signaling sent by the network device.

34. The terminal device of any of claims 27 to 30, wherein the DCI comprises indication information of at least two zero-power channel state information reference signal, CSI-RS, configurations, and the first determining unit is configured to determine at least two zero-power CSI-RS configurations indicated by the indication information, and to respectively correspond to the at least two data transmissions.

35. The terminal device of any of claims 27 to 30, wherein the data transmission is a PDSCH, at least two data transmissions of the one DCI schedule occupying different time domain resources;

36. The terminal device of any of claims 27 to 30, wherein the data transmission is a transport layer, and at least two data transmissions of the one DCI schedule occupy the same time-domain resource.

37. The terminal device according to any of claims 27 to 30, wherein the first processing unit is configured to determine a rate matching resource corresponding to each data transmission based on the rate matching parameters corresponding to at least two data transmissions, respectively;

38. The terminal device of any of claims 27 to 30, wherein the rate matching parameters include at least one of:

long term evolution common reference signal LTE CRS pattern for rate matching;

PDSCH rate matching pattern;

Zero power CSI-RS.

39. A network device, the network device comprising:

a second determining unit, configured to determine rate matching parameters corresponding to at least two data transmissions scheduled by one downlink control information DCI, where the data transmissions include a physical downlink shared channel PDSCH or a transport layer;

40. The network device of claim 39, wherein the at least two data transmissions are transmitted separately based on different transmission-reception points TRP.

41. The network device of claim 39 or 40, wherein the DCI includes indication information of at least two zero-power channel state information reference signal, CSI-RS, configurations indicated by the indication information, being rate matching parameters corresponding to the at least two data transmissions, respectively.

42. The network device of claim 39 or 40, wherein different ones of the at least two data transmissions carry different data, corresponding to different rate matching parameters;

43. The network device of claim 39 or 40, wherein data transmissions of the at least two data transmissions using different transmission modes correspond to different rate matching parameters.

44. The network device of claim 43, wherein the transmission scheme is any one of:

a demodulation reference signal (DMRS) port group adopted by transmission;

transmitting the adopted frequency domain resource;

and transmitting the adopted time domain resources.

45. The network device of claim 43, wherein, in the case where the transmission mode is a DMRS port group adopted for transmission, data transmission adopting different transmission modes in the at least two data transmissions corresponds to different rate matching parameters, including:

46. The network device of claim 43, wherein, in the case where the transmission mode is a time domain resource employed for transmission, the data transmission employing different transmission modes of the at least two data transmissions corresponds to different rate matching parameters, comprising:

wherein one mini-slot occupies at least one OFDM symbol within one slot.

47. The network device of claim 39 or 40, wherein the network device further comprises:

the first sending unit is configured to send a high-layer signaling to the terminal device, where the high-layer signaling is used to instruct the at least two data transmissions to respectively correspond to different rate matching parameters.

48. The network device of claim 39 or 40, wherein the data transmission is a PDSCH, at least two data transmissions of the one DCI schedule occupying different time-domain resources;

49. The network device of claim 39 or 40, wherein the data transmission is a transport layer, and at least two data transmissions of the one DCI schedule occupy the same time-domain resource.

50. The network device of claim 39 or 40, wherein the second processing unit is configured to determine a rate matching resource corresponding to each data transmission based on the rate matching parameters corresponding to at least two data transmissions, respectively;

51. The network device of claim 39 or 40, wherein the network device further comprises:

and the second sending unit is configured to send the data transmission after the rate matching.

52. The network device of claim 39 or 40, wherein the rate matching parameters include at least one of:

long term evolution common reference signal LTE CRS pattern for rate matching;

PDSCH rate matching pattern;

zero power CSI-RS.

53. A terminal device comprising a processor and a memory for storing a computer program capable of running on the processor, wherein,

the processor is configured to execute the steps of the data transmission processing method according to any one of claims 1 to 12 when the computer program is run.

54. A network device comprising a processor and a memory for storing a computer program capable of running on the processor, wherein,

the processor is configured to execute the steps of the data transmission processing method according to any one of claims 13 to 26 when the computer program is run.

55. A storage medium storing an executable program which, when executed by a processor, implements the data transmission processing method of any one of claims 1 to 12.

56. A storage medium storing an executable program which, when executed by a processor, implements the data transmission processing method of any one of claims 13 to 26.