CN112399617B

CN112399617B - Information transmission method, terminal and network side equipment

Info

Publication number: CN112399617B
Application number: CN201910758732.XA
Authority: CN
Inventors: 王蒙军; 苏昕; 高雪娟; 高秋彬; 陈润华
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2022-06-28
Anticipated expiration: 2039-08-16
Also published as: CN112399617A

Abstract

The invention provides an information transmission method, a terminal and network side equipment. The information transmission method of the invention comprises the following steps: acquiring indication information corresponding to each PDSCH in at least two PDSCHs, wherein the at least two PDSCHs are sent by different network side equipment, and the indication information is used for indicating the corresponding relation between the PDSCH and the network side equipment sending the PDSCH; sequencing the HARQ-ACK codebooks corresponding to the PDSCHs based on the sequence between the at least two pieces of indication information to obtain a target HARQ-ACK codebook; and reporting the target HARQ-ACK codebook. The invention can ensure that the HARQ-ACK codebook sequence jointly reported by the terminal from the HARQ-ACK codebooks corresponding to the PDSCHs of different network side devices to the network side device is consistent with the HARQ-ACK codebook sequence received and understood by the network side device, thereby avoiding the wrong understanding of the network side device on the HARQ-ACK feedback information.

Description

Information transmission method, terminal and network side equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to an information transmission method, a terminal, and a network device.

Background

In an NR (New Radio, New air interface) system, a terminal will support receiving two PDSCHs (Physical Downlink Shared channels) within the same TTI (Transmission Time Interval). The two PDSCHs may completely coincide in time domain and frequency domain, and they are from different TRPs (Transmit-Receive points), and are independently scheduled through different DCIs (Downlink Control Information), and the terminal may jointly feed back an HARQ-ACK (Hybrid automatic repeat request acknowledgement) codebook to a certain TRP.

If the terminal is configured to adopt the semi-static HARQ-ACK codebook joint feedback, the HARQ-ACK information sequence of the two PDSCHs which need to be fed back by the terminal is possibly inconsistent with the HARQ-ACK information sequence of the two PDSCHs which are received and understood by the TRP, so that the understanding of the TRP to the HARQ-ACK feedback information is wrong, and the problem that a transmission and feedback mechanism fails is caused.

Disclosure of Invention

The invention aims to provide an information transmission method, a terminal and network side equipment, which are used for solving the problem that in the prior art, because the HARQ-ACK information sequence of two PDSCHs required to be fed back by the terminal is inconsistent with the HARQ-ACK information sequence of the two PDSCHs received and understood by a TRP, the understanding of the TRP to the HARQ-ACK feedback information is wrong, and further a transmission and feedback mechanism fails.

In order to achieve the above object, an embodiment of the present invention provides an information transmission method, which is applied to a terminal, and includes:

acquiring indication information corresponding to each PDSCH in at least two PDSCHs (physical downlink shared channels), wherein the at least two PDSCHs are sent by different network side equipment, and the indication information is used for indicating the corresponding relation between the PDSCH and the network side equipment sending the PDSCH;

Based on the sequence between at least two pieces of the indication information, sequencing a hybrid automatic repeat request response (HARQ) -ACK codebook corresponding to each PDSCH to obtain a target HARQ-ACK codebook;

and reporting the target HARQ-ACK codebook.

Wherein the indication information comprises at least one of:

a control resource set identifier CORESET-ID corresponding to a physical downlink control channel PDCCH for indicating a terminal to receive the PDSCH;

information indicated by an indication field contained in Downlink Control Information (DCI);

index value configured by the network side higher layer.

The method for obtaining a target HARQ-ACK codebook by sequencing a hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook corresponding to each PDSCH based on a sequence between at least two pieces of indication information comprises the following steps:

under the condition of corresponding to the same indication information, sequencing the HARQ-ACK codebooks which correspond to each PDSCH and are demodulated and decoded according to the sequence of the carrier domain; combining the sorted HARQ-ACK codebooks according to the sequence between at least two pieces of the indication information to obtain a target HARQ-ACK codebook; alternatively, the first and second electrodes may be,

under the condition of corresponding to the same carrier domain, sequencing the HARQ-ACK codebooks which correspond to each PDSCH and are demodulated and decoded according to the sequence between at least two pieces of indication information; and combining the sequenced HARQ-ACK codebooks according to the sequence of the carrier domains to obtain a target HARQ-ACK codebook.

Wherein, before the HARQ-ACK codebook corresponding to each PDSCH is ordered based on the order between at least two of the indication information to obtain a target HARQ-ACK codebook, the method further includes:

and receiving PDSCHs respectively sent by at least two pieces of network side equipment in the same minimum time unit based on a dynamic scheduling mode or a semi-persistent scheduling mode indicated by the PDCCH.

Wherein the target HARQ-ACK codebook is a semi-static codebook.

In order to achieve the above object, an embodiment of the present invention further provides a method, applied to a network side device, including:

receiving a target hybrid automatic repeat request-acknowledgement (HARQ-ACK) codebook sent by a terminal;

the target HARQ-ACK codebook is an HARQ-ACK codebook obtained by the terminal after sequencing the HARQ-ACK codebooks corresponding to the PDSCHs based on the sequence between the indication information corresponding to each PDSCH in the acquired at least two PDSCHs.

Before receiving a target hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook sent by a terminal, the method further comprises the following steps:

and configuring indication information for the terminal, wherein the indication information is used for indicating the corresponding relation between the PDSCH sent by the network side equipment and the network side equipment.

Wherein the indication information comprises at least one of:

a control resource set identifier CORESET-ID corresponding to a physical downlink control channel PDCCH for indicating a terminal to receive a PDSCH;

information indicated by an indication field contained in downlink control information DCI;

index value configured by the network side higher layer.

After receiving a target hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook sent by a terminal, the method further comprises the following steps:

and obtaining the HARQ-ACK codebook corresponding to the network side equipment according to the target HARQ-ACK codebook and the sequence between the at least two pieces of indication information.

Wherein, the obtaining of the HARQ-ACK codebook corresponding to the network side device according to the target HARQ-ACK codebook and the sequence between the at least two pieces of indication information includes:

splitting the target HARQ-ACK codebook according to the sequence between at least two pieces of indication information to obtain the HARQ-ACK codebook which corresponds to the network side equipment and is ordered according to the sequence of the carrier domain; alternatively, the first and second electrodes may be,

splitting the target HARQ-ACK codebook according to the sequence of a carrier domain to obtain at least two split HARQ-ACK codebooks; and obtaining an HARQ-ACK codebook corresponding to the network side equipment according to the sequence between at least two pieces of the indication information.

In order to achieve the above object, an embodiment of the present invention further provides a terminal, including: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor; the processor implements the following steps when executing the program:

and reporting the target HARQ-ACK codebook.

Wherein the indication information comprises at least one of:

index value configured by the network side higher layer.

Wherein the processor, when executing the program, further implements the steps of:

under the condition of corresponding to the same indication information, sequencing the HARQ-ACK codebooks which correspond to each PDSCH and are demodulated and decoded according to the sequence of the carrier domain; combining the sorted HARQ-ACK codebooks according to the sequence between at least two pieces of the indication information to obtain a target HARQ-ACK codebook; alternatively, the first and second liquid crystal display panels may be,

Wherein the target HARQ-ACK codebook is a semi-static codebook.

In order to achieve the above object, an embodiment of the present invention further provides a terminal, including:

an obtaining module, configured to obtain indication information corresponding to each PDSCH in at least two PDSCH (physical downlink shared channel), where the at least two PDSCHs are sent by different network side devices, and the indication information is used to indicate a correspondence between the PDSCH and the network side device that sends the PDSCH;

a codebook sorting module, configured to sort, based on a sequence between at least two pieces of the indication information, a HARQ-ACK codebook corresponding to each PDSCH to obtain a target HARQ-ACK codebook;

And the codebook reporting module is used for reporting the target HARQ-ACK codebook.

In order to achieve the above object, an 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 information transmission method as described above.

In order to achieve the above object, an embodiment of the present invention further provides a network side device, including: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor, the processor implementing the steps when executing the program of:

receiving a target hybrid automatic repeat request response (HARQ-ACK) codebook sent by a terminal;

Wherein the processor implements the following steps when executing the program:

Wherein the indication information comprises at least one of:

index value configured by the network side higher layer.

and obtaining an HARQ-ACK codebook corresponding to the network side equipment according to the target HARQ-ACK codebook and the sequence between the at least two pieces of indication information.

splitting the target HARQ-ACK codebook according to the sequence of the carrier domain to obtain at least two split HARQ-ACK codebooks; and obtaining an HARQ-ACK codebook corresponding to the network side equipment according to the sequence between at least two pieces of the indication information.

In order to achieve the above object, an embodiment of the present invention further provides a network side device, including:

The second receiving module is used for receiving a target hybrid automatic repeat request-acknowledgement (HARQ-ACK) codebook sent by the terminal;

the target HARQ-ACK codebook is an HARQ-ACK codebook obtained by sequencing the HARQ-ACK codebooks corresponding to the PDSCHs by the terminal based on the sequence between the indication information corresponding to the PDSCHs in the acquired at least two PDSCHs.

The technical scheme of the invention at least has the following beneficial effects:

in the above technical solution of the embodiment of the present invention, by obtaining indication information corresponding to each PDSCH in at least two PDSCHs, the at least two PDSCHs are sent by different network side devices, and the indication information is used for indicating a correspondence between the PDSCH and the network side device sending the PDSCH; based on the sequence between at least two pieces of the indication information, sequencing a hybrid automatic repeat request response (HARQ) -ACK codebook corresponding to each PDSCH to obtain a target HARQ-ACK codebook; and reporting the target HARQ-ACK codebook, so that the terminal can jointly report the HARQ-ACK codebook sequence corresponding to the PDSCH demodulated and decoded from different network side equipment to the network side equipment to be consistent with the HARQ-ACK codebook sequence received and understood by the network side equipment, thereby avoiding the network side equipment from understanding the HARQ-ACK feedback information wrongly and further ensuring that a transmission and feedback mechanism is effective.

Drawings

Fig. 1 is a schematic flowchart of an information transmission method according to an embodiment of the present invention;

fig. 2 is a flowchart illustrating a second exemplary information transmission method according to the present invention;

fig. 3 is a block diagram of a terminal according to an embodiment of the present invention;

fig. 4 is a schematic block diagram of a terminal according to an embodiment of the present invention;

fig. 5 is a block diagram of a network device according to an embodiment of the present invention;

fig. 6 is a schematic block diagram of a network device according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, a schematic flow chart of an information transmission method provided in an embodiment of the present invention is applied to a terminal, and includes:

step 101: acquiring indication information corresponding to each PDSCH in at least two PDSCHs (physical downlink shared channels), wherein the at least two PDSCHs are sent by different network side equipment, and the indication information is used for indicating the corresponding relation between the PDSCH and the network side equipment sending the PDSCH;

in this step, at least two PDSCHs are PDSCHs sent by different network side devices and received by the terminal within the same minimum time unit.

It should be noted that the minimum time unit includes, but is not limited to: one TTI, one slot, or two OFDM (Orthogonal Frequency Division Multiplexing) symbols.

Here, the network side device includes but is not limited to: base station or TRP.

Step 102: based on the sequence between at least two pieces of the indication information, sequencing a hybrid automatic repeat request response (HARQ) -ACK codebook corresponding to each PDSCH to obtain a target HARQ-ACK codebook;

in this step, the sequence between at least two pieces of the indication information includes: ascending or descending. Of course, other sequences may be included, and are not specifically limited herein.

It should be noted that both the network side device and the terminal know the sequence between the at least two pieces of indication information, and a specific learning manner may be protocol agreement or mutual notification.

Here, the terminal receives at least two PDSCHs, and obtains an HARQ-ACK codebook corresponding to each PDSCH by demodulating and decoding each PDSCH.

Step 103: and reporting the target HARQ-ACK codebook.

In this step, specifically, the target HARQ-ACK codebook is reported to one of the network side devices. Here, which network side device is specifically reported to is determined by the network side.

Preferably, the target HARQ-ACK codebook is a semi-static codebook.

According to the information transmission method, the indication information corresponding to each PDSCH in at least two PDSCHs is obtained, the at least two PDSCHs are sent by different network side equipment, and the indication information is used for indicating the corresponding relation between the PDSCH and the network side equipment which sends the PDSCH; sequencing the HARQ-ACK codebooks corresponding to the PDSCHs based on the sequence of the at least two pieces of indication information to obtain a target HARQ-ACK codebook; and reporting the target HARQ-ACK codebook, so that the terminal can jointly report the HARQ-ACK codebook sequence corresponding to the PDSCH demodulated and decoded from different network side equipment to the network side equipment to be consistent with the HARQ-ACK codebook sequence received and understood by the network side equipment, thereby avoiding the network side equipment from understanding the HARQ-ACK feedback information wrongly and further ensuring that a transmission and feedback mechanism is effective.

Preferably, the indication information includes at least one of:

Index value configured by the network side higher layer.

Here, a network side device, such as a base station, configures the CORESET information for the terminal. Here, the CORESET-ID is used to identify a corresponding CORESET configuration, and can indicate a PDCCH from a different network side device for instructing the terminal to receive the PDSCH. Since the terminal receives the PDSCH according to PDCCH scheduling, the CORESET-ID may indirectly indicate the correspondence between the PDSCH and the network side device that transmitted the PDSCH.

In addition, a field mode can be added in the DCI, an indication field is added, and the PDSCH from different network side devices is indicated by the value of the indication field.

As a preferred implementation, step 102 may include:

It should be noted that, the HARQ-ACK codebooks in each carrier domain are ordered according to the slot interval from the feedback time point.

Here, if the indication information is the CORESET-ID corresponding to the PDCCH for instructing the terminal to receive the PDSCH, the HARQ-ACK codebooks demodulated and decoded for each PDSCH are sorted in the order of the carrier domain when the same CORESET-ID is associated, and the sorted HARQ-ACK codebooks are combined in the order between at least two CORESET-IDs, that is, based on the CORESET-ID order, that is, are concatenated in the order based on the CORESET-ID order.

The execution of the above steps is specifically described below with reference to the following examples.

Example 1

Under the condition that the indication information is a CORESET-ID corresponding to a PDCCH for indicating the terminal to receive the PDSCH, firstly, the terminal acquires the CORESET-ID configured for the terminal by different network side equipment (base station or TRP), for example, when the CORESET-ID configured for the terminal by TRP-1 is 3, and when the CORESET-ID is 3, the PDCCH for indicating the terminal to receive the PDSCH is from the TRP-1; and the CORESET-ID configured by the TRP-2 for the terminal is 4, and when the CORESET-ID is 4, the PDCCH for indicating the terminal to receive the PDSCH is from the TRP-2.

It should be noted that, in this example, different network side devices cooperate to dynamically schedule the PDSCH.

Specifically, the terminal receives PDSCH groups from different CORESET-IDs, an ACK/NACK codebook obtained by demodulating and decoding each PDSCH group is sorted according to the ascending order of a carrier domain to obtain two ACK/NACK sequences, and then the two ACK/NACK sequences are cascaded according to the ascending order of the CORESET IDs.

Here, the HARQ-ACK codebook obtained by demodulating and decoding the PDSCH from TRP-1 is sorted in ascending order of the carrier domain, see table 1; the PDSCH from TRP-2 is demodulated and decoded to obtain an HARQ-ACK codebook, and the HARQ-ACK codebook is sorted according to the ascending order of a carrier domain and is referred to a table 2; an ACK/NACK codebook in which two ACK/NACK sequences are concatenated in ascending order of CORESET ID, see table 3.

TABLE 1

Note that Δ T in table 1 indicates a slot interval from the ACK/NACK feedback time point. Wherein, each row corresponds to the same carrier wave and the ACK/NACK codebook is at different time intervals from the ACK/NACK feedback time point; each column corresponds to an ACK/NACK codebook under different carriers at the same time interval from the ACK/NACK feedback time point.

TABLE 2

TABLE 3

It should be noted that the meanings of the rows and columns in tables 2 and 3 are the same as those in table 1, and are not described herein again.

Example two

Under the condition that the indication information is a CORESET-ID corresponding to a PDCCH for indicating the terminal to receive the PDSCH, firstly, the terminal acquires the CORESET-ID configured for the terminal by different network side equipment (base station or TRP), for example, when the CORESET-ID configured for the terminal by TRP-1 is 4, and when the CORESET-ID is 4, the PDCCH for indicating the terminal to receive the PDSCH is from the TRP-1; when the CORESET-ID configured for the terminal by TRP-2 is 2, and the CORESET-ID is 2, the PDCCH for indicating the terminal to receive the PDSCH is from the TRP-2.

Specifically, the terminal receives the PDSCH according to PDCCH scheduling, demodulates and decodes the PDSCH from TRP-1 and TRP-2 to obtain an HARQ-ACK codebook, specifically an ACK/NACK codebook, and firstly sorts the HARQ-ACK codebook according to the ascending order of carrier domains, and then cascades the sorted ACK/NACK codebook according to the descending order of CORESET-ID.

Here, the HARQ-ACK codebook obtained by demodulating and decoding the PDSCH from TRP-2 is sorted in ascending order of the carrier domain, see table 4; a HARQ-ACK codebook is obtained after the PDSCH from the TRP-1 is demodulated and decoded, and the HARQ-ACK codebook is sorted according to the ascending order of the carrier domain, which is shown in a table 5; the ACK/NACK codebooks in table 4 and table 5 were concatenated in descending order of CORESET-ID, see table 6.

TABLE 4

Note that Δ T in table 4 indicates a slot interval from the ACK/NACK feedback time point. Wherein, each row corresponds to the same carrier wave, and the ACK/NACK codebook is under different time intervals from the ACK/NACK feedback time point; each column corresponds to an ACK/NACK codebook under different carriers at the same time interval from the ACK/NACK feedback time point.

TABLE 5

TABLE 6

Note that the meanings indicated in each row and each column in tables 5 and 6 are the same as those in table 4, and are not described again here.

Example three

Under the condition that the indication information is CORESET-ID corresponding to PDCCH for indicating the terminal to receive PDSCH, firstly, the terminal acquires CORESET information configured for the terminal by different network side equipment (base station or TRP), TRP-2 and TRP-3 cooperate, the semi-continuous PDSCH of the terminal is configured through RRC signaling, and the CORESET-ID corresponding to the PDCCH for activating the semi-continuous PDSCH-1 is configured for the terminal by the TRP-2 and is 3; TRP-3 configures the PDCCH activating the semi-persistent PDSCH-2 for the terminal to correspond to a CORESET-ID of 4.

Specifically, the terminal activates and receives the semi-continuous PDSCH through the received different PDCCHs according to RRC signaling configuration, and obtains an HARQ-ACK codebook, specifically an ACK/NACK codebook, by demodulating and decoding the PDSCH from the TRP-2 and the TRP-3, the HARQ-ACK codebook, specifically the ACK/NACK codebook, is firstly sorted according to the ascending order of the carrier domain, and then the sorted ACK/NACK codebook is cascaded according to the ascending order of the CORESET-ID.

Here, the HARQ-ACK codebook obtained by demodulating and decoding the semi-continuous PDSCH from TRP-2 that needs to be fed back and whose CORESET-ID is 3 is received by the terminal is sorted according to the ascending order of the carrier domain, see table 7; a terminal receives an HARQ-ACK codebook which is obtained by demodulating and decoding a CORESET-ID 4 semi-continuous PDSCH which needs to be fed back and comes from TRP-3, and the HARQ-ACK codebook is sorted according to the ascending order of carrier domains, and the HARQ-ACK codebook is shown in a table 8; the ACK/NACK codebooks in Table 8 and Table 9 were concatenated in ascending order of CORESET-ID, see Table 9.

TABLE 7

Note that Δ T in table 7 indicates a slot interval from the ACK/NACK feedback time point. Wherein, each line corresponds to the same carrier wave, the same working Bandwidth, namely BWP (Bandwidth Part) 1, ACK/NACK codebook under different time intervals from ACK/NACK feedback time point; each column corresponds to the ACK/NACK codebook under different carriers at the same time interval from the ACK/NACK feedback time point and the same working bandwidth, i.e., BWP 1.

TABLE 8

TABLE 9

Note that the meanings indicated in table 7 and table 8 for each row and each column are the same as those in table 9, and are not described again here.

Or if the indication information is the CORESET-ID corresponding to the PDCCH for indicating the terminal to receive the PDSCH, sequencing the HARQ-ACK codebooks demodulated and decoded corresponding to each PDSCH according to the sequence between at least two CORESET-IDs under the condition that the indication information corresponds to the same carrier domain; and combining the sequenced HARQ-ACK codebooks according to the sequence of the carrier domains, namely cascading the HARQ-ACK codebooks based on the sequence of the carrier domains.

The execution of the above steps is specifically described below with reference to an example.

Example four

Under the condition that the indication information is a CORESET-ID corresponding to a PDCCH for indicating the terminal to receive the PDSCH, first, the terminal acquires a CORESET-ID configured for the terminal by different network side devices (base stations or TRPs), for example, when the CORESET-ID configured for the terminal by TRP-1 is 4, and when the CORESET-ID is 4, the PDCCH for indicating the terminal to receive the PDSCH is from the TRP-1; when the CORESET-ID configured for the terminal by TRP-2 is 2, and the CORESET-ID is 2, the PDCCH for indicating the terminal to receive the PDSCH is from the TRP-2.

Specifically, the terminal receives PDSCH according to PDCCH scheduling, demodulates and decodes the PDSCH from TRP-1 and TRP-2 to obtain an HARQ-ACK codebook, specifically an ACK/NACK codebook, firstly sequences the PDSCH according to the descending order of CORESET-ID corresponding to the same carrier domain, and then cascades the sequenced ACK/NACK codebook according to the ascending order of the carrier domain. That is, HARQ-ACK codebooks obtained by demodulating and decoding PDSCHs from TRP-1 and TRP-2 are interleaved and combined based on the order of carrier domains and the order of CORESET-IDs.

Here, the HARQ-ACK codebook obtained by demodulating and decoding the PDSCH of core set-ID 4 received by the terminal is shown in table 10; a HARQ-ACK codebook obtained by demodulating and decoding the PDSCH of core set-ID 2 received by the terminal is shown in table 11; the same carrier domains are firstly corresponded, sorted according to the descending order of CORESET-ID, and then the sorted ACK/NACK codebook is cascaded according to the ascending order of the carrier domains, which is referred to as the ACK/NACK codebook in the table 12.

TABLE 10

TABLE 11

TABLE 12

And if the indication information is the information indicated by the indication fields contained in the DCI, concatenating the HARQ-ACK codebooks demodulated and decoded by the PDSCH based on the sequence between the information indicated by the indication fields contained in the at least two DCIs, namely based on the index value sequence of the indication fields of the DCI.

Here, further, the HARQ-ACK codebook demodulated and decoded for each PDSCH may be sorted according to the order of the carrier domain, corresponding to the information indicated by the indication domain included in the same DCI; then, cascading the sequenced HARQ-ACK codebooks according to the sequence between the indicated information of the indication domains contained in at least two DCIs; or the same carrier domain may be first ordered according to the order between the information indicated by the indication domains contained in the at least two DCIs, and then the ordered HARQ-ACK codebooks may be concatenated according to the order of the carrier domain.

Example five

When the indication information is information indicated by an indication field contained in DCI, first, a terminal receives DCI transmitted by different network side devices, for example, the terminal receives DCI transmitted by TRP-B, where the indication field (for example, PDSCH-group-ind or TRP-ind) contained in DCI is 0, which indicates that the indicated PDSCH is from TRP-B; and the terminal receives DCI transmitted by the TRP-A, wherein the DCI comprises an indication domain of 1, and the indication domain indicates that the indicated PDSCH comes from the TRP-A.

When an indication field (such as PDSCH-group-ind or TRP-ind) contained in the DCI is 0, the terminal takes a received ACK/NACK codebook corresponding to the PDSCH as a first part; when the indication field contained in the DCI is 1, the terminal uses the received ACK/NACK codebook corresponding to the PDSCH as the second part, that is, concatenates the two parts of codebooks in ascending order according to the information indicated by the indication field contained in the DCI.

Here, the HARQ-ACK codebook obtained after demodulating and decoding the PDSCH with PDSCH-group-ind of 0 is shown in table 13; a HARQ-ACK codebook obtained by demodulating and decoding the PDSCH with PDSCH-group-ind of 1, see table 14; and an ACK/NACK codebook obtained by concatenating the two HARQ-ACK codebooks in an ascending order according to the DCI indication field, that is, the added 1-bit field, is shown in table 15.

Watch 13

Note that Δ T in table 13 indicates a slot interval from the ACK/NACK feedback time point. Wherein, each row corresponds to the same carrier wave and the ACK/NACK codebook is at different time intervals from the ACK/NACK feedback time point; each column corresponds to an ACK/NACK codebook under different carriers at the same time interval from the ACK/NACK feedback time point.

TABLE 14

Watch 15

Note that the meanings of the rows and columns in tables 14 and 15 are the same as those in table 13, and are not described again here.

If the indication information is an index value configured by a network side high layer, the HARQ-ACK codebooks demodulated and decoded corresponding to each PDSCH may be concatenated based on an order between at least two index values configured by the network side high layer, that is, based on an index order configured by the network side high layer.

The order of the carrier domain includes: ascending or descending. Of course, other sequences may be included, and are not specifically limited herein.

Based on the embodiment shown in fig. 1, as a preferred implementation manner, before step 102, the method further includes:

It should be noted that the minimum time unit includes, but is not limited to: one TTI, one slot, or two OFDM symbols.

According to the information transmission method, the indication information corresponding to each PDSCH in at least two PDSCHs is obtained, the at least two PDSCHs are sent by different network side equipment, and the indication information is used for indicating the corresponding relation between the PDSCH and the network side equipment which sends the PDSCH; based on the sequence between at least two pieces of the indication information, sequencing a hybrid automatic repeat request response (HARQ) -ACK codebook corresponding to each PDSCH to obtain a target HARQ-ACK codebook; and reporting the target HARQ-ACK codebook, so that the terminal can jointly report the HARQ-ACK codebook sequence corresponding to the PDSCH demodulated and decoded from different network side equipment to the network side equipment to be consistent with the HARQ-ACK codebook sequence received and understood by the network side equipment, thereby avoiding the network side equipment from understanding the HARQ-ACK feedback information wrongly and further ensuring that a transmission and feedback mechanism is effective.

As shown in fig. 2, a schematic flow diagram of an information transmission method provided in an embodiment of the present invention is applied to a network device, and includes:

step 201: receiving a target hybrid automatic repeat request response (HARQ-ACK) codebook sent by a terminal;

Here, the indication information indicates the correspondence between the PDSCH and the network side device that transmitted the PDSCH. That is, different network side devices correspond to different PDSCHs.

The information transmission method provided by the embodiment of the invention receives a target HARQ-ACK codebook sent by a terminal, wherein the target HARQ-ACK codebook is an HARQ-ACK codebook obtained by sequencing the HARQ-ACK codebooks corresponding to the PDSCHs based on the sequence between the indication information corresponding to each PDSCH in at least two obtained PDSCHs by the terminal, so that the HARQ-ACK codebook sequence received and understood by network side equipment is consistent with the HARQ-ACK codebook sequence corresponding to PDSCHs fed back by the terminal and demodulated and decoded by the PDSCHs from different network side equipment, thereby avoiding the understanding error of the network side equipment on the HARQ-ACK feedback information and further ensuring the effectiveness of a transmission and feedback mechanism.

As a preferred implementation manner, before step 201, the method further includes:

Specifically, the indication information includes at least one of:

index value configured by the network side higher layer.

Here, a network side device, such as a base station, configures the CORESET information for the terminal. Here, the core set-ID is used to identify a corresponding core set configuration, and can indicate a PDCCH from a different network side device for instructing the terminal to receive a PDSCH. Since the terminal receives the PDSCH according to PDCCH scheduling, the CORESET-ID may indirectly indicate the correspondence between the PDSCH and the network side device that transmitted the PDSCH.

In addition, the network side device may indicate the PDSCH from different network side devices by adding a field manner, that is, adding an indication field, to the DCI and taking a value of the indication field.

Here, for example, if the network side device is TRP-1, TRP-1 configures CORESET-ID to be 3 for the terminal, that is, when the CORESET-ID acquired by the terminal is 3, the PDCCH indicating the terminal to receive the PDSCH is from TRP-1.

It should be noted that, in the present example, the network side device cooperates with other network side devices to dynamically schedule the PDSCH, and configures the CORESET information and CORESET-ID corresponding to different PDCCHs of the terminal. For example, the CORESET-ID corresponding to the PDCCH of the PDSCH scheduled by TRP-1 is 3; the PDCCH of the TRP-2 scheduling PDSCH corresponds to a CORESET-ID of 4.

Here, corresponding to the second example at the terminal side, for example, if the network side device is TRP-2, TRP-2 configures CORESET-ID to be 2 for the terminal, that is, when the CORESET-ID acquired by the terminal is 2, it is described that the PDCCH indicating the terminal to receive the PDSCH is from TRP-2.

It should be noted that, in the present example, the network side device cooperates with other network side devices to dynamically schedule the PDSCH, and configures the CORESET information and CORESET-ID corresponding to different PDCCHs of the terminal. For example, the CORESET-ID corresponding to the PDCCH of the PDSCH scheduled by TRP-1 is 4; the PDCCH of the TRP-2 scheduling PDSCH corresponds to a CORESET-ID of 2.

Here, for example, the network side device is TRP-3 corresponding to the terminal side, and the terminal semi-persistent PDSCH is configured through RRC signaling, that is, the core-ID corresponding to the PDCCH that TRP-3 configures the terminal to activate semi-persistent PDSCH-2 is 4.

It should be noted that, in this example, the network side device cooperates with other network side devices, PDSCH is semi-persistently scheduled through PDCCH, the terminal semi-persistently PDSCH is configured through RRC signaling, and the core set-ID corresponding to PDCCH activating semi-persistently PDSCH-1 is configured for the terminal by TRP-2 and is 3; TRP-3 configures the PDCCH activating the semi-persistent PDSCH-2 for the terminal to correspond to a CORESET-ID of 4.

Here, for example, if the network side device is TRP- ｃA, the TPR- ｃA adds 1-bit field (e.g., PDSCH-group-ind or TRP-ind) in the DCI information field to indicate the PDSCH from the TPR- ｃA, e.g., the field is configured to be 1.

It should be noted that the network side device in this example cooperates with other network side devices to schedule the PDSCH, and configures values of the indication fields in DCI different from the terminal. For example, the field in the TPR- A configuration DCI is 1, which indicates that the indicated PDSCH is from TPR- A; the TPR-B configures this field in the DCI to be 0, indicating that the indicated PDSCH is from TPR-B.

As a preferred implementation manner, before step 201, the method further includes: and transmitting the PDSCH to the terminal.

Based on the embodiment shown in fig. 1, as a preferred implementation manner, after step 201, the method further includes:

The method specifically comprises the following steps:

Here, the at least two split HARQ-ACK codebooks may be understood that each HARQ-ACK codebook corresponds to the same carrier domain, and the corresponding carrier domains are different between different HARQ-ACK codebooks.

It should be noted that, through protocol specification or mutual notification between network side devices or mutual notification between a network side device and a terminal, the network side device can know the order between the at least two pieces of instruction information. The HARQ-ACK codebook received by the network side equipment is the HARQ-ACK codebook obtained by sequencing at least two HARQ-ACK codebooks by the terminal side according to the sequence between at least two pieces of the indication information, and the network side equipment knows the sequence and can obtain the HARQ-ACK codebook corresponding to the network equipment according to the sequence.

In addition, since the network side device and the other network side device coordinate to schedule the PDSCH, the network side device also knows the indication information configured by the other network side device to the terminal, that is, the order of the indication information corresponding to the other network side device is also known, and after this step, the method may further include:

And respectively sending the other HARQ-ACK codebooks except the HARQ-ACK codebook corresponding to the other HARQ-ACK codebooks which are obtained after splitting to the corresponding network side equipment according to the sequence between the at least two pieces of indication information.

Therefore, other network side equipment can conveniently perform corresponding data transmission according to the respective HARQ-ACK codebook.

As shown in fig. 3, an embodiment of the present invention further provides a terminal, including: including a memory 320, a processor 300, a transceiver 310, a bus interface, and a program stored in the memory 320 and operable on the processor 300, the processor 300 is configured to read the program in the memory 320 and execute the following processes:

Acquiring indication information corresponding to each PDSCH in at least two PDSCHs (physical downlink shared channels), wherein the at least two PDSCHs are sent by different network side equipment, and the indication information is used for indicating the corresponding relation between the PDSCHs and the network side equipment sending the PDSCHs;

sequencing the HARQ-ACK codebooks corresponding to the PDSCH based on the sequence of the at least two pieces of indication information to obtain a target HARQ-ACK codebook;

and reporting the target HARQ-ACK codebook.

Wherein in fig. 3 the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 300, and various circuits, represented by memory 320, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 310 may be a number of elements including a transmitter and a transceiver providing a means for communicating with various other apparatus over a transmission medium. For different user devices, the user interface 330 may also be an interface capable of interfacing with a desired device externally, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 300 is responsible for managing the bus architecture and general processing, and the memory 320 may store data used by the processor 300 in performing operations.

Optionally, the indication information includes at least one of:

index value configured by the network side higher layer.

Optionally, the processor 300 further implements the following steps when executing the program:

under the condition of corresponding to the same carrier domain, sequencing the HARQ-ACK codebooks which correspond to each PDSCH and are demodulated and decoded according to the sequence between at least two pieces of indication information; and combining the sequenced HARQ-ACK codebooks according to the sequence of the carrier domains to obtain a target HARQ-ACK codebook. Optionally, the processor 300 further implements the following steps when executing the program:

Optionally, the target HARQ-ACK codebook is a semi-static codebook.

As shown in fig. 4, an embodiment of the present invention further provides a terminal, including:

an obtaining module 401, configured to obtain indication information corresponding to each PDSCH in at least two PDSCH (physical downlink shared channel), where the at least two PDSCH are sent by different network side devices, and the indication information is used to indicate a correspondence between the PDSCH and the network side device that sends the PDSCH;

a codebook sorting module 402, configured to sort, based on a sequence between at least two pieces of the indication information, a HARQ-ACK codebook corresponding to each PDSCH to obtain a target HARQ-ACK codebook;

a codebook reporting module 403, configured to report the target HARQ-ACK codebook.

Optionally, the indication information includes at least one of:

Index value configured by the network side higher layer.

In the terminal according to the embodiment of the present invention, the codebook sorting module 402 includes:

a first codebook sorting unit, configured to sort, according to a carrier domain order, HARQ-ACK codebooks that correspond to each PDSCH demodulation decoding, in a case where the same indication information corresponds to the same HARQ-ACK codebook; combining the sorted HARQ-ACK codebooks according to the sequence between at least two pieces of the indication information to obtain a target HARQ-ACK codebook; alternatively, the first and second electrodes may be,

a second codebook sorting unit, configured to sort, according to an order between at least two pieces of the indication information, HARQ-ACK codebooks that correspond to each PDSCH demodulation decoding, in a case where the HARQ-ACK codebooks correspond to the same carrier domain; and combining the sequenced HARQ-ACK codebooks according to the sequence of the carrier domains to obtain a target HARQ-ACK codebook.

The terminal of the embodiment of the invention further comprises:

a first receiving module, configured to receive, in a same minimum time unit, PDSCHs respectively sent by at least two network side devices based on a dynamic scheduling manner or a semi-persistent scheduling manner indicated by a PDCCH.

Optionally, the target HARQ-ACK codebook is a semi-static codebook.

The terminal of the embodiment of the invention acquires the indication information corresponding to each PDSCH in at least two PDSCHs through the acquisition module, wherein the at least two PDSCHs are sent by different network side equipment, and the indication information is used for indicating the corresponding relation between the PDSCH and the network side equipment sending the PDSCH; the codebook sorting module sorts the HARQ-ACK codebooks corresponding to the hybrid automatic repeat request responses of the PDSCHs based on the sequence between the at least two pieces of indication information to obtain a target HARQ-ACK codebook; and the codebook reporting module reports the target HARQ-ACK codebook, so that the terminal can jointly report the HARQ-ACK codebook sequence corresponding to the PDSCH demodulated and decoded from different network side equipment to the network side equipment, and the HARQ-ACK codebook sequence received and understood by the network side equipment is consistent with the HARQ-ACK codebook sequence received and understood by the network side equipment, thereby avoiding the understanding error of the network side equipment on the HARQ-ACK feedback information and further ensuring the effectiveness of a transmission and feedback mechanism.

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

and reporting the target HARQ-ACK codebook.

When executed by the processor, the program can implement all the implementation manners in the embodiment of the method applied to the terminal side shown in fig. 1, and details are not described here for avoiding repetition.

As shown in fig. 5, an embodiment of the present invention further provides a network side device, including: a transceiver 510, a memory 520, a processor 500 and a program stored on the memory and executable on the processor, the processor 500 being configured to read the program in the memory 520 and execute the following processes:

Wherein in fig. 5, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 500, and various circuits, represented by memory 520, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 510 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 may store data used by the processor 500 in performing operations.

Optionally, the processor 500 further implements the following steps when executing the program:

Optionally, the indication information includes at least one of:

index value configured by the network side higher layer.

As shown in fig. 6, the present invention further provides a network device, including:

a second receiving module 601, configured to receive a target HARQ-ACK codebook sent by a terminal;

The network side device of the embodiment of the invention further comprises:

a configuration module, configured to configure indication information for a terminal, where the indication information is used to indicate a correspondence between a PDSCH sent by the network side device and the network side device.

Optionally, the indication information includes at least one of:

index value configured by the network side higher layer.

The network side device of the embodiment of the invention further comprises:

and the codebook processing module is used for obtaining the HARQ-ACK codebook corresponding to the network side equipment according to the target HARQ-ACK codebook and the sequence between the at least two pieces of indication information.

In the network side device of the embodiment of the present invention, the codebook processing module includes:

a first codebook processing unit, configured to split the target HARQ-ACK codebook according to an order between at least two pieces of the indication information, to obtain an HARQ-ACK codebook that corresponds to the network side device and is ordered according to an order of a carrier domain; alternatively, the first and second liquid crystal display panels may be,

a second codebook processing unit, configured to split the target HARQ-ACK codebook according to a carrier domain order, to obtain at least two split HARQ-ACK codebooks; and obtaining an HARQ-ACK codebook corresponding to the network side equipment according to the sequence between at least two pieces of the indication information.

The network side equipment of the embodiment of the invention receives a target HARQ-ACK codebook sent by a terminal through a second receiving module, wherein the target HARQ-ACK codebook is an HARQ-ACK codebook obtained by the terminal by sequencing the HARQ-ACK codebooks corresponding to the PDSCHs based on the sequence between the acquired indication information corresponding to each PDSCH in the at least two PDSCHs, so that the HARQ-ACK codebook sequence received and understood by the network side equipment is consistent with the HARQ-ACK codebook sequence fed back by the terminal and corresponding to the PDSCHs from different network side equipment after demodulation and decoding, thereby avoiding the understanding error of the HARQ-ACK feedback information by the network side equipment, and further ensuring the effectiveness of a transmission and feedback mechanism.

When executed by the processor, the program can implement all implementation manners in the method embodiment applied to the network side device side shown in fig. 2, and details are not described here for avoiding repetition.

In various embodiments of the present invention, it should be understood that the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. An information transmission method applied to a terminal is characterized by comprising the following steps:

and reporting the target HARQ-ACK codebook.

2. The method of claim 1, wherein the indication information comprises at least one of:

index value configured by the network side higher layer.

3. The method of claim 2, wherein the network side device comprises a transmission reception point TRP, and the DCI transmitted by different TRPs comprises an indication field indicating PDSCH transmitted by different TRPs.

4. The method of claim 1 or 2, wherein the ordering the HARQ-ACK codebook corresponding to each PDSCH based on the order between at least two of the indication information to obtain a target HARQ-ACK codebook comprises:

Under the condition of corresponding to the same indication information, sequencing the HARQ-ACK codebooks which correspond to each PDSCH and are demodulated and decoded according to the sequence of the carrier domain; combining the sorted HARQ-ACK codebooks according to the sequence between at least two pieces of indication information to obtain a target HARQ-ACK codebook; alternatively, the first and second liquid crystal display panels may be,

5. The method as claimed in claim 1, wherein the method further comprises, before the hybrid automatic repeat request acknowledgement HARQ-ACK codebook corresponding to each PDSCH is ordered based on an order between at least two of the indication information to obtain a target HARQ-ACK:

6. The method of claim 1, wherein the target HARQ-ACK codebook is a semi-static codebook.

7. An information transmission method is applied to network side equipment, and is characterized by comprising the following steps:

the target HARQ-ACK codebook is an HARQ-ACK codebook obtained by the terminal after sequencing the HARQ-ACK codebooks corresponding to the PDSCHs based on the sequence between the indication information corresponding to each PDSCH in the acquired at least two PDSCHs; the indication information is used for indicating the corresponding relation between the PDSCH and the network side equipment for sending the PDSCH.

8. The method of claim 7, wherein before receiving a target hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook transmitted by a terminal, the method further comprises:

9. The method according to claim 7 or 8, wherein the indication information comprises at least one of:

Index value configured by the network side higher layer.

10. The method of claim 9, wherein the network side device comprises a Transmission Reception Point (TRP), and wherein DCI transmitted by different TRPs comprises an indication field indicating PDSCH transmitted by different TRPs.

11. The method of claim 7, wherein after receiving a target hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook sent by a terminal, the method further comprises:

12. The method of claim 11, wherein obtaining the HARQ-ACK codebook corresponding to the network side device according to the target HARQ-ACK codebook and an order between at least two pieces of the indication information comprises:

13. A terminal, comprising: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor; wherein the processor implements the following steps when executing the program:

and reporting the target HARQ-ACK codebook.

14. The terminal according to claim 13, wherein the indication information comprises at least one of:

index value configured by the network side higher layer.

15. The terminal of claim 14, wherein the network side device comprises a transmission reception point TRP, and wherein DCI transmitted by different TRPs includes an indication field indicating PDSCH transmitted by different TRPs.

16. A terminal according to claim 13 or 14, wherein the processor when executing the program further performs the steps of:

under the condition of corresponding to the same indication information, sequencing the HARQ-ACK codebooks which correspond to each PDSCH and are demodulated and decoded according to the sequence of a carrier domain; combining the sorted HARQ-ACK codebooks according to the sequence between at least two pieces of indication information to obtain a target HARQ-ACK codebook; alternatively, the first and second liquid crystal display panels may be,

under the condition of corresponding to the same carrier domain, sequencing the HARQ-ACK codebooks which correspond to each PDSCH after demodulation and decoding according to the sequence between at least two pieces of indication information; and combining the sorted HARQ-ACK codebooks according to the sequence of the carrier domains to obtain a target HARQ-ACK codebook.

17. The terminal of claim 13, wherein the processor, when executing the program, further performs the steps of:

and receiving PDSCHs respectively sent by at least two network side devices in the same minimum time unit based on a dynamic scheduling mode or a semi-persistent scheduling mode indicated by the PDCCH.

18. The terminal of claim 13, wherein the target HARQ-ACK codebook is a semi-static codebook.

19. A terminal, comprising:

a codebook cascading module, configured to rank, based on a sequence between at least two pieces of the indication information, HARQ-ACK codebooks corresponding to the respective PDSCHs to obtain a target HARQ-ACK codebook;

20. A network-side device, comprising: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor, wherein the processor when executing the program performs the steps of:

21. The network-side device of claim 20, wherein the processor, when executing the program, performs the following steps:

22. The network-side device according to claim 20 or 21, wherein the indication information comprises at least one of:

index value configured by the network side higher layer.

23. The network side device of claim 22, wherein the network side device comprises a transmission reception point TRP, and wherein DCI transmitted by different TRPs includes an indication field indicating PDSCH transmitted by different TRPs.

24. The network-side device of claim 20, wherein the processor, when executing the program, performs the following steps:

25. The network-side device of claim 24, wherein the processor executes the program to perform the following steps:

26. A network-side device, comprising:

27. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the information transmission method according to one of claims 1 to 6 or the steps of the information transmission method according to one of claims 7 to 12.