CN110798295B

CN110798295B - Method and device for determining physical shared channel transmission data

Info

Publication number: CN110798295B
Application number: CN201810878993.0A
Authority: CN
Inventors: 鲁智; 孙鹏; 孙晓东
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-08-03
Filing date: 2018-08-03
Publication date: 2021-04-02
Anticipated expiration: 2038-08-03
Also published as: WO2020024814A1; CN110798295A

Abstract

The embodiment of the invention discloses a method and equipment for determining physical shared channel transmission data, wherein the method comprises the following steps: receiving DCI, wherein the DCI is used for scheduling a physical shared channel; determining at least one spatial transmission parameter of the physical shared channel; transmitting at least one TB of the physical shared channel according to the at least one spatial transmission parameter; it is determined whether TBs transmitted by different spatial transmission parameters are the same. The embodiment of the invention can effectively improve the reliability and effectiveness of the data transmission of the physical shared channel.

Description

Method and device for determining physical shared channel transmission data

Technical Field

The present invention relates to the field of communications, and in particular, to a method and an apparatus for determining a physical shared channel to transmit data.

Background

A fifth Generation (5-Generation) mobile communication system can accommodate more diverse application scenarios and service requirements. Currently, the main application scenarios of 5G include enhanced Mobile Broadband (eMBB), high reliability Low Latency Communication (URLLC), mass Machine Type Communication (mtc), and the like. The application scenes put forward the requirements of high reliability, low time delay, large bandwidth, wide coverage and the like on the system. Since multiple Transmission and Reception Point (TRP) Transmission can increase reliability and throughput of data Transmission, data Transmission based on multiple TRP is one of important technologies in a 5G communication system. For example, the network side device may transmit the same or different data to the terminal device based on the plurality of TRPs.

However, for multi-TRP data transmission when one physical shared channel is scheduled according to one Downlink Control Information (DCI), a terminal device cannot determine whether data from multiple TRPs are the same data at present, which results in low reliability of data transmission.

Disclosure of Invention

The embodiment of the invention aims to provide a method and equipment for determining physical shared channel transmission data, so as to solve the problem of low reliability of data transmission in the prior art.

In a first aspect, an embodiment of the present invention provides a method for determining data transmission on a physical shared channel, where the method is applied to a terminal device, and the method includes:

receiving DCI, wherein the DCI is used for scheduling a physical shared channel;

determining at least one spatial transmission parameter of the physical shared channel;

transmitting at least one TB of the physical shared channel according to the at least one spatial transmission parameter;

it is determined whether TBs transmitted by different spatial transmission parameters are the same.

In a second aspect, an embodiment of the present invention further provides a method for determining that a physical shared channel transmits data, which is applied to a network side device, where the method includes:

transmitting DCI, wherein the DCI is used for scheduling a physical shared channel;

indicating at least one spatial transmission parameter of the physical shared channel;

indicating whether the TBs transmitted by different spatial transmission parameters are the same;

transmitting at least one TB of the physical shared channel according to the at least one spatial transmission parameter.

In a third aspect, an embodiment of the present invention further provides a terminal device, including:

a receiving module, configured to receive DCI, where the DCI is used to schedule a physical shared channel;

a determining module for determining at least one spatial transmission parameter of the physical shared channel;

a transmission module, configured to transmit at least one TB of the physical shared channel according to the at least one spatial transmission parameter;

and the determining module is further used for determining whether the TBs transmitted by the different spatial transmission parameters are the same.

In a fourth aspect, an embodiment of the present invention further provides a terminal device, where the terminal device includes a processor, a memory, and a computer program stored in the memory and executable on the processor, and when the computer program is executed by the processor, the steps of the method for determining a physical shared channel to transmit data according to the first aspect are implemented.

In a fifth aspect, the embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, which when executed by a processor, implements the steps of the method for determining physical shared channel transmission data according to the first aspect.

In a sixth aspect, an embodiment of the present invention further provides a network side device, including:

a transmitting module, configured to transmit DCI, where the DCI is used to schedule a physical shared channel;

an indication module configured to indicate at least one spatial transmission parameter of the physical shared channel;

the indication module is further configured to indicate whether TBs transmitted by different spatial transmission parameters are the same;

a transmission module, configured to transmit at least one TB of the physical shared channel according to the at least one spatial transmission parameter.

In a seventh aspect, an embodiment of the present invention further provides a network-side device, where the network-side device includes a processor, a memory, and a computer program stored in the memory and executable on the processor, and when the computer program is executed by the processor, the method for determining physical shared channel transmission data according to the second aspect is implemented.

In an eighth aspect, the embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the steps of the method for determining physical shared channel transmission data according to the second aspect.

In the embodiment of the present invention, the terminal device receives the DCI for scheduling the physical shared channel, determines at least one spatial transmission parameter of the physical shared channel, transmits at least one TB of the physical shared channel according to the at least one spatial transmission parameter, and determines whether the TBs transmitted by different spatial transmission parameters are the same, thereby effectively improving reliability and effectiveness of data transmission of the physical shared channel.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic diagram of a network architecture according to an embodiment of the present invention;

fig. 2 is a flowchart illustrating a method for determining data transmission on a physical shared channel according to an embodiment of the present invention;

fig. 3 is a diagram illustrating PDSCH transmission according to an embodiment of the present invention;

fig. 4 is a flowchart illustrating another method for determining data transmission on a physical shared channel according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a network-side device according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a network-side device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, fig. 1 is a schematic diagram of a network architecture according to an embodiment of the present invention. As shown in fig. 1, the UE includes a User terminal 11 and a base station 12, where the User terminal 11 may be a terminal Equipment (UE), for example: the terminal side Device 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, Mobile Internet Device), or a Wearable Device (Wearable Device), and it should be noted that the specific type of the user terminal 11 is not limited in the embodiments of the present invention. The base station 12 may be a base station of 5G and later releases (e.g., a gNB, a 5G NR NB), or a base station in other communication systems, or referred to as a node B, and it should be noted that, in the embodiment of the present invention, only the 5G base station is taken as an example, but the specific type of the base station 12 is not limited.

It should be noted that the specific functions of the user terminal 11 and the base station 12 are described in detail through a plurality of embodiments below.

Fig. 2 is a flowchart illustrating a method for determining data transmission on a physical shared channel according to an embodiment of the present invention. The method is applied to the terminal equipment, and can be as follows.

Step 210, receiving Downlink Control Information (DCI), where the DCI is used to schedule a physical shared channel.

At step 220, at least one spatial transmission parameter of the physical shared channel is determined.

Step 230, at least one Transport Block (TB) of the physical shared channel is transmitted according to the at least one spatial transmission parameter.

In step 240, it is determined whether the TBs transmitted by different spatial transmission parameters are the same.

When the network side equipment schedules the physical shared channel for data transmission, the network side equipment sends DCI for scheduling the physical shared channel to the terminal equipment, so that the terminal equipment determines at least one space transmission parameter of the physical shared channel after receiving the DCI. Wherein one spatial transmission parameter corresponds to one TRP.

The terminal equipment transmits at least one TB of the physical shared channel according to the at least one spatial transmission parameter. In order to ensure reliability and effectiveness of data transmission, the terminal device needs to determine whether TBs transmitted by different spatial transmission parameters are the same.

In the embodiment of the present invention, determining at least one spatial transmission parameter of a physical shared channel includes:

the DCI includes a spatial parameter indication field, where the spatial parameter indication field is used to indicate at least one spatial transmission parameter.

In an embodiment, the Physical Shared Channel is a Physical Downlink Shared Channel (PDSCH), and the spatial transmission parameter is a Quasi-co-location (QCL) parameter.

The network side device may configure a plurality of QCL parameters. When the network side device schedules the PDSCH, a QCL parameter indication field may be added to the DCI for scheduling the PDSCH transmitted to the terminal device, where the QCL parameter indication field is used to indicate at least one QCL parameter of the PDSCH to the terminal device.

After receiving the DCI for scheduling the PDSCH, the terminal device may determine at least one QCL parameter of the PDSCH according to the QCL parameter indication field in the DCI.

The ways of indicating at least one QCL parameter of PDSCH to the terminal device by the QCL parameter indication field in DCI for scheduling PDSCH include at least two of the following.

(1) The QCL parameter indication field indicates identification information (QCL parameter ID) of each of at least one QCL parameter of the PDSCH to the terminal device.

For example, the network side device is configured with 4 QCL parameters: QCL parameters 1 to 4. When the network side device schedules the PDSCH, a QCL parameter indication domain is added in DCI which is sent to the terminal device and used for scheduling the PDSCH, wherein the QCL parameter indication domain comprises: ID of QCL parameter 1 and ID of QCL parameter 2.

When the terminal device receives the DCI, according to the QCL parameter indication field in the DCI, it may be determined that the QCL parameter of the PDSCH is: QCL parameter 1 and QCL parameter 2.

And the terminal equipment receives the PDSCH transmitted by the network side equipment by using the QCL parameters 1 and 2.

(2) And indicating at least one QCL parameter of the PDSCH to the terminal equipment according to the bit number and the domain value of the QCL parameter indication domain.

For example, the network side device is configured with 4 QCL parameters: QCL parameters 1 to 4. When the network side device schedules the PDSCH, a 4-bit (bit) QCL parameter indication field is added to the DCI for scheduling the PDSCH transmitted to the terminal device, and the field value of the QCL parameter indication field is 0110.

When the terminal device receives the DCI, according to a field value 0110 of the 4-bit QCL parameter indication field in the DCI, it may be determined that the QCL parameter of the PDSCH is: QCL parameter 2 and QCL parameter 3.

And the terminal equipment receives the PDSCH transmitted by the network side equipment by using the QCL parameters 2 and 3.

In another embodiment, the Physical Shared Channel is a Physical Uplink Shared Channel (PUSCH), and the spatial transmission parameter is a spatial domain transmission filter parameter.

The network side device can configure a plurality of spatial domain transmission filter parameters. When the network side device schedules the PUSCH, a spatial domain transmission filter parameter indication field may be added to the DCI for scheduling the PUSCH transmitted to the terminal device, where the spatial domain transmission filter parameter indication field is used to indicate at least one spatial domain transmission filter parameter of the PUSCH to the terminal device.

After receiving the DCI for scheduling the PUSCH, the terminal device may determine at least one spatial domain transmission filter parameter of the PUSCH according to the spatial domain transmission filter parameter indication field.

The manner in which the spatial domain transmission filter parameter indication field in the DCI for scheduling the PUSCH indicates the at least one spatial domain transmission filter parameter of the PUSCH to the terminal apparatus includes at least two of the following.

(1) The spatial domain transmission filter parameter indication field indicates, to the terminal apparatus, identification information (spatial domain transmission filter parameter ID) of each of at least one spatial domain transmission filter parameter of the PUSCH.

For example, the network side device is configured with 4 spatial domain transmission filter parameters: spatial domain transmission filter parameter 1-spatial domain transmission filter parameter 4. When the network side equipment schedules the PUSCH, a spatial domain transmission filter parameter indication field is added in DCI (Downlink control information) which is sent to the terminal equipment and used for scheduling the PUSCH, wherein the spatial domain transmission filter parameter indication field comprises: the ID of the spatial domain transmission filter parameter 1 and the ID of the spatial domain transmission filter parameter 2.

When the terminal device receives the DCI, according to the spatial domain transmission filter parameter indication field in the DCI, it may determine that the spatial domain transmission filter parameter of the PUSCH is: a spatial domain transmission filter parameter 1 and a spatial domain transmission filter parameter 2.

And the terminal equipment uses the specific domain transmission filter parameter 1 and the specific domain transmission filter parameter 2 to send the PUSCH to the network side equipment.

(2) And indicating at least one specific domain transmission filter parameter of the PUSCH to the terminal equipment according to the bit number and the domain value of the specific domain transmission filter parameter indication domain.

For example, the network side device is configured with 4 spatial domain transmission filter parameters: spatial domain transmission filter parameter 1-spatial domain transmission filter parameter 4. When the network side device schedules the PUSCH, a spatial domain transmission filter parameter indication field of 4 bits (bit) is added to DCI (Downlink control information) which is sent to the terminal device and used for scheduling the PUSCH, and the field value of the spatial domain transmission filter parameter indication field is 0110.

When the terminal device receives the DCI, according to the field value 0110 of the field indicated by the 4-bit spatial domain transmission filter parameter in the DCI, it may determine that the spatial domain transmission filter parameter of the PUSCH is: a spatial domain transmission filter parameter 2 and a spatial domain transmission filter parameter 3.

And the terminal equipment uses the specific domain transmission filter parameter 2 and the specific domain transmission filter parameter 3 to send the PUSCH to the network side equipment.

When at least one TB of a physical shared channel is transmitted using at least one spatial transmission parameter, in order to ensure reliability and validity of data transmission, a terminal device needs to determine whether TBs transmitted using different spatial transmission parameters are the same.

The following is a detailed description of PDSCH and PUSCH, respectively.

The first method comprises the following steps: when at least one TB of the PDSCH is transmitted using the at least one QCL parameter, it is determined whether the TBs transmitted by different QCL parameters are the same.

The terminal device sequentially executes the above steps 230 to 240, receives at least one TB of the PDSCH transmitted by the network side device using at least one QCL parameter, and further determines whether the TBs transmitted by different QCL parameters are the same.

The way to determine whether TBs transmitted by different QCL parameters are the same includes at least two of the following.

(1) And the network side equipment indicates whether the TB transmitted by different QCL parameters is the same or not to the terminal equipment in a display indication mode.

Wherein, the mode of displaying the indication comprises:

a. in the embodiment of the present invention, determining whether TBs transmitted by different QCL parameters are the same includes:

the DCI comprises a coding indication field, wherein the coding indication field is used for indicating whether the TBs transmitted by different QCL parameters are the same according to a pre-configured transmission rule bit mapping table.

The method comprises the steps that a network side device is configured in advance, or the network side device and a terminal device agree in advance a transmission rule bit mapping table, wherein the transmission rule bit mapping table is used for indicating transmission rules between two TBs of the PDSCH and QCL parameters corresponding to domain values of different encoding indication domains.

For example, table 1 is a transmission rule bit mapping table.

TABLE 1

The current QCL parameter i is a QCL parameter of a Control Resource Set (CORESET) corresponding to a Physical Downlink Control Channel (PDCCH) for carrying DCI for scheduling the PDSCH, that is, the terminal device receives the DCI for scheduling the PDSCH using the QCL parameter i.

As shown in table 1, the coded indication field is 3 bits, and it can be determined whether TBs transmitted by different QCL parameters are the same according to the field values of the coded indication field, where "O" represents the same one TB (TB1), "X" represents the same another TB (TB2), and TB1 and TB2 are different TBs.

For example, the terminal device receives DCI for scheduling the PDSCH, and a domain value of a coding indication field in the DCI is 011, the terminal device may determine that a first TB received using the QCL parameter i and a second TB received using the QCL parameter i are different TBs of the PDSCH, a first TB received using the QCL parameter j and a second TB received using the QCL parameter j are different TBs of the PDSCH, a first TB received using the QCL parameter i and a first TB received using the QCL parameter j are the same TB of the PDSCH, and a second TB received using the QCL parameter i and a second TB received using the QCL parameter j are the same TB of the PDSCH.

Fig. 3 is a schematic diagram of PDSCH transmission according to an embodiment of the present invention.

As shown in fig. 3 (a), the TB received by the terminal device using QCL parameter i is a different TB of the PDSCH from the TB received using QCL parameter j;

as shown in fig. 3 (b), the first TB received by the terminal device using QCL parameter i is the same TB of the PDSCH as the TB received by QCL parameter j, and the second TB received by the terminal device using QCL parameter i is different from the TB received by QCL parameter j.

It should be noted that, the network side device configures a plurality of QCL parameters in the transmission rule bit mapping table, which is not specifically limited herein.

For example, table 2 is another transmission rule bit mapping table.

TABLE 2

b. In the embodiment of the present invention, determining whether TBs transmitted by different QCL parameters are the same includes:

the Transmission Configuration Indication state (TCI state) in the DCI includes a TB state Indication field, where the TB state Indication field is used to indicate whether TBs transmitted by different QCL parameters are the same according to a second Transmission rule configured in advance.

The DCI for scheduling the PDSCH includes a TCI state, and the network side device adds a TB state indication field in the TCI state, where the TB state indication field is used to indicate whether TBs transmitted by different QCL parameters are the same according to a second transmission rule configured in advance.

The TB state indication field is also used for indicating whether the same layer data of the TB is transmitted or not when different QCL parameters transmit the same TB.

The network side device pre-configures a second transmission rule, where the pre-configured second transmission rule is a PDSCH transmission rule corresponding to different domain values of the TB status indication domain, and may include:

n1, PDSCH is transmitted using QCL parameter i.

n2, PDSCH is transmitted using QCL parameter j.

n3, transmitting the TB1 of PDSCH using QCL parameter i and QCL parameter j, and transmitting the same layer data of TB1, transmitting the TB2 of PDSCH using QCL parameter i.

That is, the first TB transmitted using QCL parameter i and the second TB transmitted using QCL parameter i are different TBs of the PDSCH, and the first TB transmitted using QCL parameter i and the first TB transmitted using QCL parameter j are the same layer data of the same TB of the PDSCH.

n4, transmitting the PDSCH TB1 using QCL parameter i and QCL parameter j, transmitting different layer data of TB1, and transmitting the PDSCH TB2 using QCL parameter i.

That is, the first TB transmitted using QCL parameter i and the second TB transmitted using QCL parameter i are different TBs of the PDSCH, and the first TB transmitted using QCL parameter i and the first TB transmitted using QCL parameter j are different layer data of the same TB of the PDSCH.

n5, transmitting the TB1 of PDSCH using QCL parameter i and QCL parameter j, and transmitting the same layer data of TB1, transmitting the TB2 of PDSCH using QCL parameter j.

That is, the first TB transmitted using QCL parameter j and the second TB transmitted using QCL parameter j are different TBs of the PDSCH, and the first TB transmitted using QCL parameter i and the first TB transmitted using QCL parameter j are the same layer data of the same TB of the PDSCH.

n6, transmitting the PDSCH TB1 using QCL parameter i and QCL parameter j, transmitting different layer data of TB1, and transmitting the PDSCH TB2 using QCL parameter j.

That is, the first TB transmitted using QCL parameter j and the second TB transmitted using QCL parameter j are different TBs of the PDSCH, and the first TB transmitted using QCL parameter i and the first TB transmitted using QCL parameter j are different layer data of the same TB of the PDSCH.

n7, the PDSCH TB1 is transmitted using QCL parameter i, the PDSCH TB2 is transmitted using QCL parameter i and QCL parameter j, and the same layer data of TB2 is transmitted.

That is, the first TB transmitted using QCL parameter i and the second TB transmitted using QCL parameter i are different TBs of the PDSCH, and the second TB transmitted using QCL parameter i and the second TB transmitted using QCL parameter j are the same layer data of the same TB of the PDSCH.

n8, the PDSCH TB1 is transmitted using QCL parameter i, the PDSCH TB2 is transmitted using QCL parameter i and QCL parameter j, and different layer data of TB2 is transmitted.

That is, the first TB transmitted using QCL parameter i and the second TB transmitted using QCL parameter i are different TBs of the PDSCH, and the second TB transmitted using QCL parameter i and the second TB transmitted using QCL parameter j are different layer data of the same TB of the PDSCH.

n9, the PDSCH TB1 is transmitted using QCL parameter j, the PDSCH TB2 is transmitted using QCL parameter i and QCL parameter j, and the same layer data of TB2 is transmitted.

That is, the first TB transmitted using QCL parameter j and the second TB transmitted using QCL parameter j are different TBs of the PDSCH, and the second TB transmitted using QCL parameter i and the second TB transmitted using QCL parameter j are the same layer data of the same TB of the PDSCH.

n10, the PDSCH TB1 is transmitted using QCL parameter j, the PDSCH TB2 is transmitted using QCL parameter i and QCL parameter j, and different layer data of TB2 is transmitted.

That is, the first TB transmitted using QCL parameter j and the second TB transmitted using QCL parameter j are different TBs of the PDSCH, and the second TB transmitted using QCL parameter i and the second TB transmitted using QCL parameter j are different layer data of the same TB of the PDSCH.

It should be noted that the second transmission rule may be preconfigured according to an actual situation, and the PDSCH transmission rules corresponding to different domain values may include other transmission rules besides n1 to n10, which is not limited herein.

The terminal device receives DCI for scheduling the PDSCH, and a domain value of a TB state indication field in a TCI state indicated by the DCI is n3, the terminal device may determine that a first TB received using the QCL parameter i and a second TB received using the QCL parameter i are different TBs of the PDSCH, and the first TB received using the QCL parameter i and the first TB received using the QCL parameter j are the same TB of the PDSCH.

c. In the embodiment of the present invention, determining whether TBs transmitted by different QCL parameters are the same includes:

the DCI comprises a signaling domain, wherein the signaling domain is used for indicating whether TBs transmitted by different QCL parameters are the same or not.

In an embodiment, when the PDSCH is transmitted using 2 QCL parameters (QCL parameter i and QCL parameter j), the network side device adds a 2-bit signaling field to the DCI for scheduling the PDSCH, where a first bit is used to indicate whether a first TB transmitted by the 2 QCL parameters is the same TB, and a second bit is used to indicate whether a second TB transmitted by the 2 QCL parameters is the same TB.

For example, a PDSCH is transmitted by using a QCL parameter i and a QCL parameter j, the terminal device receives DCI for scheduling the PDSCH, where the DCI includes a 2-bit signaling domain, and a corresponding signaling domain value is 01, the terminal device may determine that a first TB received by using the QCL parameter i and a first TB received by using the QCL parameter j are the same TB of the PDSCH, and a second TB received by using the QCL parameter i and a second TB received by using the QCL parameter j are different TBs of the PDSCH.

In another embodiment, when the PDSCH is transmitted using 2 QCL parameters (QCL parameter i and QCL parameter j), the network side device adds a 4-bit signaling field to the DCI for scheduling the PDSCH, where a first bit is used to indicate whether a first TB transmitted using QCL parameter i and a first TB transmitted using QCL parameter j are the same TB, a second bit is used to indicate whether a second TB transmitted using QCL parameter i and a second TB transmitted using QCL parameter j are the same TB, a third bit is used to indicate whether the first TB transmitted using QCL parameter i and the second TB transmitted using QCL parameter j are the same TB, and a fourth bit is used to indicate whether the second TB transmitted using QCL parameter i and the first TB transmitted using QCL parameter j are the same TB.

For example, a PDSCH is transmitted by using a QCL parameter i and a QCL parameter j, a terminal device receives DCI for scheduling the PDSCH sent by a network side device, where the DCI includes a 4-bit signaling field, and a corresponding signaling field value is 1110, the terminal device may determine that a first TB received by using the QCL parameter i and a first TB received by using the QCL parameter j are different TBs of the PDSCH, a second TB received by using the QCL parameter i and a second TB received by using the QCL parameter j are different TBs of the PDSCH, the first TB received by using the QCL parameter i and the second TB received by using the QCL parameter j are different TBs of the PDSCH, and the second TB received by using the QCL parameter i and the first TB received by using the QCL parameter j are the same TB of the PDSCH.

In another embodiment, when transmitting PDSCH using 2 QCL parameters (QCL parameter i and QCL parameter j), the network side device adds a 3-bit signaling field to DCI for scheduling PDSCH, where the first bit is identification information:

when the first bit is 0, the second bit is used for indicating whether the first TB transmitted by using the QCL parameter i and the first TB transmitted by using the QCL parameter j are the same TB, and the third bit is used for indicating whether the second TB transmitted by using the QCL parameter i and the second TB transmitted by using the QCL parameter j are the same TB;

when the first bit is 1, the second bit is used to indicate whether the first TB transmitted using the QCL parameter i and the second TB transmitted using the QCL parameter j are the same TB, and the third bit is used to indicate whether the second TB transmitted using the QCL parameter i and the first TB transmitted using the QCL parameter j are the same TB.

For example, a PDSCH is transmitted by using a QCL parameter i and a QCL parameter j, a terminal device receives DCI for scheduling the PDSCH sent by a network side device, where the DCI includes a 3-bit signaling domain, and a corresponding signaling domain value is 010, the terminal device may determine that a first TB received by using the QCL parameter i and a first TB received by using the QCL parameter j are different TBs of the PDSCH, and a second TB received by using the QCL parameter i and a second TB received by using the QCL parameter j are the same TB of the PDSCH; or the like, or, alternatively,

the PDSCH is transmitted by using the QCL parameter i and the QCL parameter j, the terminal device receives DCI for scheduling the PDSCH, which is sent by the network side device, where the DCI includes a 3-bit signaling domain, and a corresponding signaling domain value is 101, the terminal device may determine that a first TB received by using the QCL parameter i and a second TB received by using the QCL parameter j are the same TB of the PDSCH, and the second TB received by using the QCL parameter i and the first TB received by using the QCL parameter j are different TBs of the PDSCH.

(2) And the network side equipment indicates whether the TBs transmitted by different QCL parameters are the same or not to the terminal equipment in a hidden indication mode.

The hidden indication mode comprises the following steps:

in the embodiment of the present invention, determining whether TBs transmitted by different spatial transmission parameters are the same includes:

and determining whether the TBs transmitted by different space transmission parameters are the same according to the CORESET corresponding to the PDCCH bearing the DCI and a first transmission rule configured in advance.

The network side equipment configures a plurality of CORESET IDs for the terminal equipment, and for CORESET corresponding to a PDCCH for carrying DCI used for scheduling PDSCH, a first transmission rule is configured in advance according to the following formula,

mod(CORESET ID,x)＝Y。

in an embodiment, the preconfigured first transmission rule is:

transmitting the PDSCH using QCL parameter i when receiving a PDCCH carrying DCI for scheduling the PDSCH on a CORESET of mod (CORESET ID,4) ═ 1;

transmitting the PDSCH using QCL parameter j when receiving a PDCCH carrying DCI for scheduling the PDSCH on a CORESET of mod (CORESET ID,4) ═ 2;

when receiving a PDCCH carrying DCI for scheduling a PDSCH on a CORESET of mod (CORESET ID,4) ═ 3, TB1 for the PDSCH is transmitted using QCL parameter i and QCL parameter j, TB2 for the PDSCH is transmitted using QCL parameter i,

namely, the first TB transmitted by using the QCL parameter i and the second TB transmitted by using the QCL parameter i are different TBs of the PDSCH, and the first TB transmitted by using the QCL parameter i and the first TB transmitted by using the QCL parameter j are the same TB of the PDSCH;

when receiving a PDCCH carrying DCI for scheduling a PDSCH on CORESET mod (CORESET ID,4) to 0 (except CORESET ID to 0), TB1 of the PDSCH is transmitted using QCL parameter i and QCL parameter j, TB2 of the PDSCH is transmitted using QCL parameter i, wherein QCL parameter i and QCL parameter j transmit different layer data of TB1,

For example, the terminal device receives a PDCCH that carries DCI for scheduling a PDSCH and is transmitted by the network side device on a CORESET ID of 7, and because mod (CORESET ID of 7,4) is 3, according to the first transmission rule configured in advance, the terminal device may determine that a first TB received using the QCL parameter i and a second TB received using the QCL parameter i are different TBs of the PDSCH and that the first TB received using the QCL parameter i and the first TB received using the QCL parameter j are the same TB of the PDSCH.

The first transmission rule configured in advance may be configured as a rule of other forms according to the actual situation, in addition to the above description, and is not limited specifically here.

In another embodiment, when a PDCCH carrying DCI for scheduling a PDSCH is received on CORESET at mod (CORESET ID,3) 0 (except CORESET ID 0), TB1 of the PDSCH is transmitted using QCL parameter i, TB2 of the PDSCH is transmitted using QCL parameter i and QCL parameter j,

namely, the first TB transmitted by using the QCL parameter i and the second TB transmitted by using the QCL parameter i are different TBs of the PDSCH, and the second TB transmitted by using the QCL parameter i and the second TB transmitted by using the QCL parameter j are the same TB of the PDSCH;

when receiving a PDCCH carrying DCI for scheduling a PDSCH on a CORESET of mod (CORESET ID,3) ═ 1, TB1 for the PDSCH is transmitted using QCL parameter i, TB2 for the PDSCH is transmitted using QCL parameter i and QCL parameter j, where QCL parameter i and QCL parameter j transmit different layer data of TB2,

In the embodiment of the invention, the method further comprises the following steps:

and determining whether the same layer data of the TB is transmitted or not when the same TB is transmitted by different QCL parameters.

The manner of determining whether the same layer data of the TB is transmitted when different QCL parameters transmit the same TB includes the following two ways.

(1) And the network side equipment indicates whether the same layer data of the TB is transmitted or not when different QCL parameters transmit the same TB to the terminal equipment in a display indication mode.

In the embodiment of the present invention, determining whether to transmit the same layer data of the TB when different QCL parameters transmit the same TB includes:

the DCI comprises a TB layer transmission indication field, wherein the TB layer transmission indication field is used for indicating whether the same layer data of the TB is transmitted or not when the same TB is transmitted by different QCL parameters.

When the network side device schedules the PDSCH, a 2-bit TB layer transmission indication field may be added to the DCI for scheduling the PDSCH sent to the terminal device, where the TB layer transmission indication field is used to indicate to the terminal device whether to transmit the same layer data of the TB when different QCL parameters transmit the same TB.

When the domain value of the TB layer transmission indication domain is 0, the TB layer transmission indication domain is used for indicating different QCL parameters to transmit the same layer data of the same TB;

and when the domain value of the TB layer transmission indication domain is 1, the TB layer transmission indication domain is used for indicating different QCL parameters to transmit different layer data of the same TB.

For example, when the QCL parameter i and the QCL parameter j transmit the same TB (TB1), the TB1 transmitted by the QCL parameter i uses DMRS ports 1-2, the TB1 transmitted by the QCL parameter j uses orthogonal demodulation reference signals (DMRSs) ports 3-4, and the domain value of the TB layer transmission indication field is 0, the terminal device may determine that the TB1 received by using the QCL parameter i and the TB1 received by using the QCL parameter j are both first layer data and second layer data in the TB 1; or the like, or, alternatively,

when the QCL parameter i and the QCL parameter j transmit the same TB (TB1), the TB1 transmitted by the QCL parameter i uses DMRS ports 1-2, the TB1 transmitted by the QCL parameter j uses DMRS ports 3-4, and the domain value of the TB layer transmission indication domain is 1, so that the terminal device may determine that the TB1 received by the QCL parameter i is the first layer data and the second layer data in the TB1, and the TB1 received by the QCL parameter j is the third layer data and the fourth layer data in the TB 1.

(2) And the network side equipment indicates whether the same layer data of the TB is transmitted or not when different QCL parameters transmit the same TB to the terminal equipment in a hidden indication mode.

and determining whether the same layer data of the TB is transmitted or not when the same TB is transmitted by different QCL parameters according to the DMRS port numbers used by the different QCL parameters and a pre-configured layer mapping rule.

And the network side equipment configures a layer mapping rule in advance, wherein the layer mapping rule is used for indicating the mapping relation between the DMRS port number and the TB.

In an embodiment, when there are 8 DMRS ports, the layer mapping rule configured in advance includes that the first four DMRS ports correspond to a first TB for QCL parameter transmission, and the last 4 DMRS ports correspond to a second TB for QCL parameter transmission.

For example, when the QCL parameter uses DMRS ports 1-4, the QCL parameter is transmitted as a first TB (TB 1); when the QCL parameters use DMRS ports 5-8, the QCL parameters are transmitted as a second TB (TB 2).

When the QCL parameter i and the QCL parameter j are used for transmitting the PDSCH, when the QCL parameter i uses DMRS ports 1-4 and the QCL parameter j uses ports 3-6, the terminal equipment can determine that: receiving using QCL parameter i for first layer data and second layer data of TB 1; receiving third layer data and fourth layer data of TB1 by using QCL parameter i and QCL parameter j respectively; for first layer data and second layer data of TB2, received using QCL parameter j.

And the second method comprises the following steps: when at least one TB of the PUSCH is transmitted using at least one spatial domain transmission filter parameter, it is determined whether the TBs transmitted by different spatial domain transmission filter parameters are the same.

The terminal device executes the step 240 first, then executes the step 240, determines whether the TBs transmitted by different spatial domain transmission filter parameters are the same, and then sends at least one TB of the PUSCH to the network side device by using at least one spatial domain transmission filter parameter.

The manner of determining whether the TBs transmitted by different spatial domain transmission filter parameters are the same includes at least two of the following.

(1) And the network side equipment indicates whether the TB transmitted by different spatial domain transmission filter parameters is the same or not to the terminal equipment in a display indication mode.

In the embodiment of the present invention, determining whether TBs transmitted by different spatial domain transmission filter parameters are the same includes:

the DCI comprises an encoding indication field, wherein the encoding indication field is used for indicating whether the TBs transmitted by different spatial domain transmission filter parameters are the same or not according to a pre-configured transmission rule bit mapping table.

The network side equipment is configured in advance, or the network side equipment and the terminal equipment agree in advance a transmission rule bit mapping table, wherein the transmission rule bit mapping table is used for indicating a transmission rule between a spatial domain transmission filter parameter and two TBs of a PUSCH, and the transmission rule corresponds to field values of different encoding indication fields.

For example, table 3 is a transmission rule bit mapping table.

TABLE 3

The current spatial domain transmission filter parameter i is a QCL parameter of the CORESET corresponding to the PDCCH carrying the DCI for scheduling the PUSCH.

As shown in table 1, the coded indication field is 3 bits, and it can be determined whether the TBs transmitted by different spatial domain transmission filter parameters are the same according to the field value of the coded indication field, where "O" represents the same one TB (TB1), "X" represents the same another TB (TB2), and TB1 and TB2 are different TBs.

For example, the terminal device receives DCI for scheduling a PUSCH, and a domain value of a coding indication domain in the DCI is 011, the terminal device may determine that a first TB sent using a spatial domain transmission filter parameter i and a second TB sent using a spatial domain transmission filter parameter i are different TBs of the PUSCH, a first TB sent using a spatial domain transmission filter parameter j and a second TB sent using a spatial domain transmission filter parameter j are different TBs of the PUSCH, a first TB sent using a spatial domain transmission filter parameter i and a first TB sent using a spatial domain transmission filter parameter j are the same TB of the PUSCH, and a second TB sent using a spatial domain transmission filter parameter i and a second TB sent using a spatial domain transmission filter parameter j are the same TB of the PUSCH.

It should be noted that, the network side device configures a plurality of spatial domain transmission filter parameters in the transmission rule bit mapping table, which is not specifically limited herein.

For example, table 4 is another transmission rule bit mapping table.

TABLE 4

(2) The network side equipment indicates whether the TB transmitted by different spatial domain transmission filter parameters is the same or not to the terminal equipment in a hidden indication mode.

and determining whether the TB transmitted by different spatial domain transmission filter parameters is the same according to the CORESET corresponding to the PDCCH bearing the DCI and a first transmission rule configured in advance.

The network side equipment configures a plurality of spatial domain transmission filter IDs for the terminal equipment, and configures a first transmission rule in advance according to the following formula aiming at CORESET corresponding to a PDCCH carrying DCI for scheduling PUSCH,

mod(CORESET ID,x)＝Y。

in an embodiment, the preconfigured first transmission rule is:

transmitting the PUSCH using QCL parameter i when receiving a PDCCH carrying DCI for scheduling PUSCH on CORESET of mod (CORESET ID,4) ═ 1;

transmitting PUSCH using QCL parameter j when receiving PDCCH carrying DCI for scheduling PUSCH on CORESET of mod (CORESET ID,4) ═ 2;

when receiving a PDCCH carrying DCI for scheduling a PUSCH on a CORESET of mod (CORESET ID,4) ═ 3, TB1 of the PUSCH is transmitted using a spatial domain transmission filter parameter i and a spatial domain transmission filter parameter j, TB2 of the PUSCH is transmitted using a spatial domain transmission filter parameter i,

namely, the first TB transmitted by using the spatial domain transmission filter parameter i and the second TB transmitted by using the spatial domain transmission filter parameter i are different TBs of the PUSCH, and the first TB transmitted by using the spatial domain transmission filter parameter i and the first TB transmitted by using the spatial domain transmission filter parameter j are the same TB of the PUSCH;

when receiving a PDCCH carrying DCI for scheduling a PUSCH on a CORESET of mod (CORESET ID,3) 0 (except CORESET ID 0), TB1 of the PUSCH is transmitted using the spatial domain transmission filter parameter i, TB2 of the PUSCH is transmitted using the spatial domain transmission filter parameter i and the spatial domain transmission filter parameter j,

namely, the first TB transmitted using the spatial domain transmission filter parameter i and the second TB transmitted using the spatial domain transmission filter parameter j are different TBs of the PUSCH.

For example, the terminal device receives a PDCCH carrying DCI for scheduling a PUSCH and transmitted by the network side device on the core set ID of 7, and since mod (core set ID of 7,4) is 3, according to the first transmission rule configured in advance, the terminal device may determine that a first TB transmitted using the spatial domain transmission filter parameter i and a second TB transmitted using the spatial domain transmission filter parameter i are different TBs of the PUSCH, and a first TB transmitted using the spatial domain transmission filter parameter i and a first TB transmitted using the spatial domain transmission filter parameter j are the same TB of the PUSCH.

In the embodiment of the present invention, the DCI includes: and configuring information corresponding to each spatial transmission parameter in the at least one spatial transmission parameter when different TBs are transmitted.

Wherein the configuration information includes: modulation and Coding Scheme (MCS), new data indication, redundancy version, etc.

For example, in DCI for scheduling PDSCH, adding configuration information corresponding to each QCL parameter in at least one QCL parameter when each QCL parameter transmits a different TB; or the like, or, alternatively,

and adding corresponding configuration information when each specific domain transmission filter parameter in at least one specific domain transmission filter parameter transmits different TBs in the DCI for scheduling the PUSCH.

Table 5 shows the corresponding configuration information when different TBs are transmitted for the QCL parameter added in the DCI.

TABLE 5

When one TB of the physical shared channel is repeatedly transmitted on different spatial transmission parameters, the network side device needs to indicate the same Hybrid Automatic Repeat Request (HACK) process for the TB, so that all the different spatial transmission parameters transmitting the TB can receive Acknowledgement/Negative Acknowledgement (ACK, Acknowledgement)/Negative Acknowledgement (NACK).

The method for sending ACK/NACK to the network side equipment by the terminal equipment comprises at least three following modes:

(1) in the embodiment of the invention, according to the pre-configured HARQ-ACK common ID, at least one spatial transmission parameter is used for sending ACK/NACK.

For example, when the same TB (TB1) is transmitted by using QCL parameter i and QCL parameter j, the network side device pre-configures a common ID used when HARQ-ACK is fed back to the terminal device, so that after the terminal device uses TB1 received by QCL parameter i and QCL parameter j, ACK/NACK is sent to the network side device according to the common ID, and both the TRP corresponding to QCL parameter i and the TRP corresponding to QCL parameter j can receive the ACK/NACK.

(2) In the embodiment of the invention, DCI comprises a HARQ-ACK feedback indication domain;

and transmitting ACK/NACK by using at least one spatial transmission parameter according to the HARQ-ACK feedback indication domain.

And adding a HARQ-ACK feedback indication domain in DCI of the scheduling physical shared channel, so that the terminal equipment uses corresponding spatial transmission parameters to send ACK/NACK according to the domain value of the HARQ-ACK feedback indication domain.

Table 6 is an example of spatial transmission parameters for transmitting ACK/NACK indicated by different field values of the HARQ-ACK feedback indication field.

TABLE 6

Threshold value 1	Sending ACK/NACK using spatial domain transmission filter parameter i
		Threshold value of 2	Sending ACK/NACK using spatial domain transmission filter parameter j
Threshold value 3	Sending ACK/NACK using spatial domain transmission filter parameter k
		……	……

(3) In the embodiment of the invention, the ACK/NACK is sent by using at least one space transmission parameter according to the preset feedback sequence.

For example, the network side device configures a feedback sequence in advance, and according to the preconfigured feedback sequence, the terminal device sends ACK/NACK using the spatial domain transmission filter parameter i for the first time, sends ACK/NACK using the spatial domain transmission filter parameter j for the second time, sends ACK/NACK using the spatial domain transmission filter parameter k for the third time, and so on.

According to the technical scheme recorded in the embodiment of the invention, the terminal equipment receives DCI used for scheduling the physical shared channel, further determines at least one space transmission parameter of the physical shared channel, transmits at least one TB of the physical shared channel according to the at least one space transmission parameter, and determines whether the TBs transmitted by different space transmission parameters are the same, so that the reliability and the effectiveness of data transmission of the physical shared channel can be effectively improved.

Fig. 4 is a flowchart illustrating another method for determining data transmission on a physical shared channel according to an embodiment of the present invention. The method is applied to the network side equipment, and can be as follows.

And step 410, sending the DCI, wherein the DCI is used for scheduling the physical shared channel.

At step 420, at least one spatial transmission parameter of the physical shared channel is indicated.

Step 430, indicating whether the TBs transmitted by different spatial transmission parameters are the same.

Step 440, transmitting at least one TB of the physical shared channel according to the at least one spatial transmission parameter.

When the network side equipment schedules the physical shared channel for data transmission, the network side equipment sends DCI for scheduling the physical shared channel to the terminal equipment, indicates whether at least one space transmission parameter of the physical shared channel is the same as TB transmitted by different space transmission parameters for the terminal equipment, and then transmits at least one TB of the physical shared channel by using at least one space transmission parameter. Wherein one spatial transmission parameter corresponds to one TRP.

In the embodiment of the present invention, the indicating at least one spatial transmission parameter of the physical shared channel includes:

In an embodiment, the physical shared channel is PDSCH and the spatial transmission parameter is QCL parameter.

The specific indication process is similar to the related process in the method embodiment of fig. 2, and is not described here again.

In another embodiment, the physical shared channel is a PUSCH and the spatial transmission parameter is a spatial domain transmission filter parameter.

When at least one TB of the physical shared channel is transmitted using at least one spatial transmission parameter, in order to ensure reliability and validity of data transmission, the network side device needs to indicate to the terminal device whether TBs transmitted with different spatial transmission parameters are the same.

The following is a detailed description of PDSCH and PUSCH, respectively.

The first method comprises the following steps: when at least one TB of the PDSCH is transmitted using the at least one QCL parameter, it is indicated whether the TBs transmitted by different QCL parameters are the same.

The network side device indicates to the terminal device to receive the PDSCH by using the at least one QCL parameter, and indicates whether TBs transmitted by different QCL parameters are the same.

The manner of indicating whether TBs transmitted by different QCL parameters are the same includes at least two of the following.

Wherein, the mode of displaying the indication comprises:

a. in the embodiment of the present invention, indicating whether TBs transmitted by different QCL parameters are the same includes:

b. In the embodiment of the present invention, indicating whether TBs transmitted by different QCL parameters are the same includes:

the TCI state in the DCI comprises a TB state indication field, wherein the TB state indication field is used for indicating whether the TBs transmitted by different QCL parameters are the same or not according to a second transmission rule configured in advance.

c. In the embodiment of the present invention, indicating whether TBs transmitted by different QCL parameters are the same includes:

The hidden indication mode comprises the following steps:

in the embodiment of the present invention, indicating whether TBs transmitted by different spatial transmission parameters are the same includes:

and indicating whether the TBs transmitted by different space transmission parameters are the same or not according to the CORESET corresponding to the PDCCH bearing the DCI and a first transmission rule configured in advance.

and indicating whether the same layer data of the TB is transmitted or not when different QCL parameters transmit the same TB.

The manner of indicating whether the same layer data of the TB is transmitted or not when different QCL parameters transmit the same TB includes the following two manners.

In the embodiment of the present invention, when different QCL parameters are indicated to transmit the same TB, whether the same layer data of the TB is transmitted includes:

and indicating whether the same layer data of the TB is transmitted or not when different QCL parameters transmit the same TB according to the DMRS port numbers used by the different QCL parameters and a pre-configured layer mapping rule.

And the second method comprises the following steps: when at least one TB of the PUSCH is transmitted using at least one spatial domain transmission filter parameter, it is indicated whether the TBs transmitted by the different spatial domain transmission filter parameters are the same.

The network side equipment indicates the terminal equipment to use at least one specific domain transmission filter parameter to send PUSCH and indicates whether TB (transport block) transmitted by different specific domain transmission filter parameters are the same or not.

In the embodiment of the present invention, indicating whether TBs transmitted by different spatial domain transmission filter parameters are the same includes:

and indicating whether the TB transmitted by different spatial domain transmission filter parameters is the same or not according to the CORESET corresponding to the PDCCH bearing the DCI and a first transmission rule configured in advance.

When one TB of the physical shared channel is repeatedly transmitted on different spatial transmission parameters, the network side device needs to indicate the same HACK procedure for the TB, so that the ACK/NACK can be received by the different spatial transmission parameters for transmitting the TB.

The method for the network side equipment to receive the ACK/NACK sent by the terminal equipment comprises at least three of the following ways:

(1) in the embodiment of the invention, according to the pre-configured HARQ-ACK common ID, at least one spatial transmission parameter is used for receiving ACK/NACK.

For example, when the same TB (TB1) is transmitted using QCL parameter i and QCL parameter j, the network side device pre-configures a HARQ-ACK common ID for QCL parameter i and QCL parameter j, so that the terminal device sends ACK/NACK to the network side device according to the HARQ-ACK common ID after using TB1 received by QCL parameter i and QCL parameter j, thereby enabling the network side device to receive the ACK/NACK according to both QCL parameter i and QCL parameter j.

receiving ACK/NACK using at least one spatial transmission parameter according to the HARQ-ACK feedback indication field.

And adding a HARQ-ACK feedback indication domain in DCI of a scheduling physical shared channel, so that the terminal equipment uses corresponding spatial transmission parameters to send ACK/NACK according to the domain value of the HARQ-ACK feedback indication domain, and the network side equipment can use the spatial transmission parameters to receive the ACK/NACK.

(3) In the embodiment of the invention, the ACK/NACK is received by using at least one spatial transmission parameter according to the preconfigured feedback sequence.

For example, the network side device configures a feedback sequence in advance, the terminal device sends ACK/NACK by using the spatial domain transmission filter parameter i for the first time, sends ACK/NACK by using the spatial domain transmission filter parameter j for the second time, sends ACK/NACK by using the spatial domain transmission filter parameter k for the third time, and so on according to the preconfigured feedback sequence;

and the network side equipment receives ACK/NACK by using the spatial domain transmission filter parameter i for the first time, receives ACK/NACK by using the spatial domain transmission filter parameter j for the second time, receives ACK/NACK by using the spatial domain transmission filter parameter k for the third time and so on according to the preconfigured feedback sequence.

According to the technical scheme recorded in the embodiment of the invention, the network side equipment sends the DCI for scheduling the physical shared channel, indicates at least one space transmission parameter of the physical shared channel, and indicates whether TBs transmitted by different space transmission parameters are the same or not, and then transmits at least one TB of the physical shared channel according to the at least one space transmission parameter, so that the reliability and the effectiveness of data transmission of the physical shared channel can be effectively improved.

Fig. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present invention. The terminal device 500 shown in fig. 4 includes:

a receiving module 501, configured to receive DCI, where the DCI is used to schedule a physical shared channel;

a determining module 502 for determining at least one spatial transmission parameter of a physical shared channel;

a transmission module 503, configured to transmit at least one TB of a physical shared channel according to at least one spatial transmission parameter;

the determining module 502 is further configured to determine whether TBs transmitted by different spatial transmission parameters are the same.

Optionally, the determining module 502 is further configured to:

Optionally, the physical shared channel is a PDSCH, and the spatial transmission parameter is a QCL parameter.

Optionally, the physical shared channel is a PUSCH, and the spatial transmission parameter is a spatial domain transmission filter parameter.

Optionally, the determining module 502 is further configured to:

the DCI comprises a coding indication field, wherein the coding indication field is used for indicating whether the TBs transmitted by different spatial transmission parameters are the same according to a pre-configured transmission rule bit mapping table.

Optionally, the determining module 502 is further configured to:

Optionally, the DCI includes: and configuring information corresponding to each spatial transmission parameter in the at least one spatial transmission parameter when different TBs are transmitted.

Optionally, the determining module 502 is further configured to:

Optionally, the TB indication field is further used to indicate whether the same layer data of the TB is transmitted when different QCL parameters transmit the same TB.

Optionally, the determining module 502 is further configured to:

Optionally, the terminal device 500 further includes:

a sending module, configured to send ACK/NACK using at least one spatial transmission parameter according to a pre-configured HARQ-ACK common ID.

Optionally, the DCI includes a HARQ-ACK feedback indication field;

the sending module is further configured to:

The terminal device 500 provided in the embodiment of the present invention can implement each process implemented by the terminal device in the method embodiment of fig. 2, and is not described herein again to avoid repetition.

Fig. 6 is a schematic structural diagram of a network-side device according to an embodiment of the present invention. The network-side device 600 shown in fig. 5 includes:

a sending module 601, configured to send DCI, where the DCI is used to schedule a physical shared channel;

an indicating module 602, configured to indicate at least one spatial transmission parameter of a physical shared channel;

an indicating module 602, configured to indicate whether TBs transmitted by different spatial transmission parameters are the same;

a transmitting module 603 configured to transmit at least one TB of the physical shared channel according to the at least one spatial transmission parameter.

Optionally, the indicating module 602 is further configured to:

Optionally, the TB indication field is further configured to indicate whether to transmit the same layer data of the TB when different QCL parameters transmit the same TB.

Optionally, the indicating module 602 is further configured to:

Optionally, the network-side device 600 further includes:

a receiving module for receiving ACK/NACK using at least one spatial transmission parameter according to a pre-configured HARQ-ACK common ID.

Optionally, the DCI includes a HARQ-ACK feedback indication field;

the receiving module is further configured to:

The network side device 600 provided in the embodiment of the present invention can implement each process implemented by the network side device in the method embodiment of fig. 4, and is not described here again to avoid repetition.

Fig. 7 is a schematic structural diagram of another terminal device according to an embodiment of the present invention. The terminal device 700 shown in fig. 7 includes: at least one processor 701, a memory 702, at least one network interface 704, and a user interface 703. The various components in the terminal device 700 are coupled together by a bus system 705. It is understood that the bus system 705 is used to enable communications among the components. The bus system 705 includes a power bus, a control bus, and a status signal bus in addition to a data bus. But for clarity of illustration the various busses are labeled in figure 7 as the bus system 705.

The user interface 703 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, trackball, touch pad, or touch screen, among others.

It is to be understood that the memory 702 in embodiments of the present invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static random access memory (SRAM, Static RAM), Dynamic random access memory (DRAM, Dynamic RAM), Synchronous Dynamic random access memory (SDRAM, Synchronous DRAM), Double Data Rate Synchronous Dynamic random access memory (DDRSDRAM, Double Data Rate SDRAM), Enhanced Synchronous Dynamic random access memory (ESDRAM, Enhanced SDRAM), Synchronous link Dynamic random access memory (SLDRAM, Synch link DRAM), and Direct memory bus random access memory (DRRAM, Direct Rambus RAM). The memory 702 of the systems and methods described in this embodiment of the invention is intended to comprise, without being limited to, these and any other suitable types of memory.

In some embodiments, memory 702 stores the following elements, executable modules or data structures, or a subset thereof, or an expanded set thereof: an operating system 7021 and application programs 7022. The operating system 7021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks. The application 7022 includes various applications, such as a Media Player (Media Player), a Browser (Browser), and the like, for implementing various application services. Programs that implement methods in accordance with embodiments of the present invention can be included within application program 7022.

In this embodiment of the present invention, the terminal device 700 further includes: a computer program stored on a memory 702 and executable on a processor 701, the computer program when executed by the processor 701 performing the steps of:

determining at least one spatial transmission parameter of a physical shared channel;

transmitting at least one TB of a physical shared channel according to at least one spatial transmission parameter;

The method disclosed in the above embodiments 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 implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 701. The Processor 701 may be a general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may reside in ram, flash memory, rom, prom, or eprom, registers, among other computer-readable storage media known in the art. The computer readable storage medium is located in the memory 702, and the processor 701 reads the information in the memory 702, and performs the steps of the above method in combination with the hardware thereof. In particular, the computer readable storage medium has stored thereon a computer program which, when being executed by the processor 701, carries out the steps of the method embodiment as in fig. 2.

It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units designed to perform the functions described herein, or a combination thereof.

For a software implementation, the techniques described in this disclosure may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described in this disclosure. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.

The terminal device 700 can implement each process implemented by the terminal device in the foregoing method embodiment of fig. 2, and details are not described here again to avoid repetition.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the method embodiment in fig. 2, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

Fig. 8 is a schematic structural diagram of another network-side device according to an embodiment of the present invention. The network side device 800 shown in fig. 8 is capable of implementing the details of the method embodiment of fig. 4 and achieving the same effect. As shown in fig. 8, the network-side device 800 includes: a processor 801, a transceiver 802, a memory 803, a user interface 804 and a bus interface, wherein:

in this embodiment of the present invention, the network side device 800 further includes: a computer program stored on the memory 803 and executable on the processor 801, which computer program when executed by the processor 801 performs the steps of:

indicating at least one spatial transmission parameter of a physical shared channel;

In FIG. 8, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by the processor 801, and various circuits, represented by the memory 803, 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 802 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 804 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 801 is responsible for managing the bus architecture and general processing, and the memory 803 may store data used by the processor 801 in performing operations.

The network side device 800 can implement each process implemented by the network side device in the foregoing method embodiment of fig. 4, and details are not described here again to avoid repetition.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the method embodiment in fig. 4, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method for determining data transmission of a physical shared channel, applied to a terminal device, is characterized in that the method comprises:

receiving Downlink Control Information (DCI), wherein the DCI is used for scheduling a physical shared channel;

determining a plurality of spatial transmission parameters of the physical shared channel, wherein one spatial transmission parameter corresponds to one TRP;

transmitting at least one transport block, TB, of the physical shared channel according to the plurality of spatial transmission parameters;

2. The method of claim 1, wherein determining a plurality of spatial transmission parameters for the physical shared channel comprises:

the DCI includes a spatial parameter indication field, where the spatial parameter indication field is used to indicate the plurality of spatial transmission parameters.

3. The method of claim 2, wherein the physical shared channel is a Physical Downlink Shared Channel (PDSCH) and the spatial transmission parameter is a quasi-co-located (QCL) parameter.

4. The method of claim 2, wherein the physical shared channel is a Physical Uplink Shared Channel (PUSCH), and the spatial transmission parameter is a spatial domain transmission filter parameter.

5. The method of claim 3 or 4, wherein determining whether the TBs transmitted with different spatial transmission parameters are the same comprises:

the DCI comprises a coding indication field, wherein the coding indication field is used for indicating whether the TBs transmitted by different space transmission parameters are the same according to a pre-configured transmission rule bit mapping table.

6. The method of claim 3 or 4, wherein determining whether the TBs transmitted with different spatial transmission parameters are the same comprises:

and determining whether the TBs transmitted by different spatial transmission parameters are the same according to a control resource set CORESET corresponding to a physical downlink control channel PDCCH bearing the DCI and a first transmission rule configured in advance.

7. The method of claim 3 or 4, wherein the DCI comprises: and configuring information corresponding to each spatial transmission parameter in the plurality of spatial transmission parameters when different TBs are transmitted.

8. The method of claim 3, wherein determining whether TBs transmitted with different spatial transmission parameters are the same comprises:

the transmission configuration indication state TCI state in the DCI includes a TB state indication field, where the TB state indication field is used to indicate whether TBs transmitted by different QCL parameters are the same according to a second transmission rule configured in advance.

9. The method of claim 8, wherein said TB indication field is further used to indicate whether same layer data of the TB is transmitted when different QCL parameters transmit the same TB.

10. The method of claim 3, wherein the method further comprises:

and determining whether to transmit the same layer data of the TB when different QCL parameters transmit the same TB.

11. The method of claim 10, wherein determining whether to transmit the same layer data of the TB when different QCL parameters transmit the same TB comprises:

the DCI comprises a TB layer transmission indication field, wherein the TB layer transmission indication field is used for indicating whether the same layer data of the TB is transmitted or not when different QCL parameters transmit the same TB.

12. The method of claim 10, wherein determining whether to transmit the same layer data of the TB when different QCL parameters transmit the same TB comprises:

and determining whether to transmit the same layer data of the TB when different QCL parameters transmit the same TB according to the port numbers of orthogonal demodulation reference signals (DMRS) used by the different QCL parameters and a pre-configured layer mapping rule.

13. The method of claim 1, wherein the method further comprises:

and sending acknowledgement information ACK/negative acknowledgement information NACK by using the plurality of spatial transmission parameters according to a pre-configured hybrid automatic repeat request acknowledgement HARQ-ACK public identification ID.

14. The method of claim 1, wherein a HARQ-ACK feedback indication field is included in the DCI;

the method further comprises the following steps:

and sending ACK/NACK by using the plurality of spatial transmission parameters according to the HARQ-ACK feedback indication domain.

15. A method for determining physical shared channel transmission data is applied to a network side device, and is characterized in that the method comprises the following steps:

indicating a plurality of spatial transmission parameters of the physical shared channel, wherein one spatial transmission parameter corresponds to one TRP;

transmitting at least one TB of the physical shared channel according to the plurality of spatial transmission parameters.

16. The method of claim 15, wherein indicating a plurality of spatial transmission parameters for the physical shared channel comprises:

17. The method of claim 16, wherein the physical shared channel is PDSCH and the spatial transmission parameter is a QCL parameter.

18. The method of claim 16, wherein the physical shared channel is a PUSCH and the spatial transmission parameter is a spatial domain transmission filter parameter.

19. The method of claim 17 or 18, wherein indicating whether TBs transmitted by different spatial transmission parameters are the same comprises:

20. The method of claim 17 or 18, wherein indicating whether TBs transmitted by different spatial transmission parameters are the same comprises:

and indicating whether the TBs transmitted by different space transmission parameters are the same or not according to a CORESET corresponding to the PDCCH bearing the DCI and a first transmission rule configured in advance.

21. The method of claim 17 or 18, wherein the DCI comprises: and configuring information corresponding to each spatial transmission parameter in the plurality of spatial transmission parameters when different TBs are transmitted.

22. The method of claim 17, wherein indicating whether TBs transmitted by different spatial transmission parameters are the same comprises:

the TCI state in the DCI comprises a TB state indication domain, wherein the TB state indication domain is used for indicating whether TBs transmitted by different QCL parameters are the same or not according to a second transmission rule configured in advance.

23. The method of claim 22, wherein the TB indication field is further used to indicate whether same layer data of the TB is transmitted when different QCL parameters transmit the same TB.

24. The method of claim 17, wherein the method further comprises:

25. The method of claim 24, wherein indicating whether to transmit the same layer data of the TB when different QCL parameters transmit the same TB, comprises:

26. The method of claim 24, wherein indicating whether to transmit the same layer data of the TB when different QCL parameters transmit the same TB, comprises:

and indicating whether to transmit the same layer data of the TB when different QCL parameters transmit the same TB according to the DMRS port numbers used by the different QCL parameters and a pre-configured layer mapping rule.

27. The method of claim 15, wherein the method further comprises:

and receiving ACK/NACK by using the plurality of spatial transmission parameters according to the pre-configured HARQ-ACK common ID.

28. The method of claim 15, wherein a HARQ-ACK feedback indication field is included in the DCI;

the method further comprises the following steps:

and receiving ACK/NACK by using the plurality of spatial transmission parameters according to the HARQ-ACK feedback indication domain.

29. A terminal device, comprising:

a determining module, configured to determine multiple spatial transmission parameters of the physical shared channel, where one spatial transmission parameter corresponds to one sending and receiving point TRP;

a transmission module, configured to transmit at least one TB of the physical shared channel according to the plurality of spatial transmission parameters;

30. A terminal device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the method for determining physical shared channel transmission data according to any of claims 1 to 14.

31. 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 for determining physical shared channel transmission data according to any one of claims 1 to 14.

32. A network-side device, comprising:

an indicating module, configured to indicate multiple spatial transmission parameters of the physical shared channel, where one spatial transmission parameter corresponds to one transmission reception point TRP;

a transmission module, configured to transmit at least one TB of the physical shared channel according to the plurality of spatial transmission parameters.

33. A network-side device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the method for determining physical shared channel transmission data according to any of claims 15 to 28.

34. A computer-readable storage medium, having stored thereon a computer program which, when being executed by a processor, carries out the steps of the method for determining physical shared channel transmission data according to any one of claims 15 to 28.