WO2021196975A1

WO2021196975A1 - Information receiving and sending method and apparatus, storage medium, and terminal

Info

Publication number: WO2021196975A1
Application number: PCT/CN2021/079180
Authority: WO
Inventors: 王化磊; 马大为; 周欢
Original assignee: 北京紫光展锐通信技术有限公司
Priority date: 2020-03-31
Filing date: 2021-03-05
Publication date: 2021-10-07
Also published as: CN113472408A; CN113472408B

Abstract

Disclosed are an information receiving and sending method and apparatus, a storage medium, and a terminal. The method comprises: acquiring configuration information of a CORESET, wherein the configuration information of the CORESET includes first TCI state information; and according to the first TCI state information, performing information receiving and/or sending. According to the present invention, there is an opportunity to directly or indirectly determine, according to first TCI state information, antenna port information which is used for determining pre-coding information of a PUSCH scheduled by a PDCCH, and/or rank information of the PUSCH scheduled by the PDCCH.

Description

Information transceiving method and device, storage medium and terminal

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on March 31, 2020, the application number is 202010245404.2, and the invention title is "Information Transceiving Method and Device, Storage Medium, and Terminal", the entire content of which is incorporated by reference In this application.

Technical field

The present invention relates to the field of communication technology, and in particular to an information transceiving method and device, storage medium, and terminal.

Background technique

In the New Radio (NR) standard text (Rel-15/Rel-16), for codebook-based uplink transmission, the scheduling downlink control channel (Downlink Control Information, DCI) includes a sounding reference signal resource indicator ( Sounding Reference Signal resource indicator, SRI) field. According to the SRI field, the terminal can obtain the spatial information of the Physical Uplink Shared Channel (PUSCH) and the antenna port information used to determine the precoding information of the PUSCH, which is based on the antenna Port information acquisition precoding matrix indicator (Transmitted Precoding Matrix Indicator, TPMI). If the network does not enable the terminal to send at full power, the antenna port information can also be obtained through higher layers such as Radio Resource Control (RRC); but if the network enables the terminal to send at full power, especially in full power transmission mode 2, Then the antenna port information needs to be able to be obtained from the SRI field in the DCI.

In NR Rel-15/Rel-16, for non-codebook-based uplink transmission, the scheduling DCI includes the SRI field. According to the SRI field, the terminal can learn the spatial information of the PUSCH and the rank information of the PUSCH, which is based on the rank information. Acquire Demodulation Reference Signal (DMRS) information for PUSCH.

In NR Rel-15/16, the downlink is to obtain relevant transmission information, such as airspace information, through the transmission configuration indicator (TCI) state.

In future standard protocols, such as Rel-17 project to support a unified TCI state-based indication framework for uplink and downlink, that is, for uplink transmission, its scheduling DCI, such as DCI 0_1/DCI 0_2, may no longer include SRI Field instead of the transmission configuration indication TCI field. In Rel-15/16, the TCI field is used to indicate related transmission information, such as spatial information, Doppler spread, and Doppler shift. ), delay spread (delay spread), average delay (average delay), that is, for uplink transmission, if a unified TCI state-based indication framework for uplink and downlink is supported, it is easy to fail to obtain the precoding determined for PUSCH Information about the antenna port information, or the problem that the rank information of PUSCH cannot be determined.

Summary of the invention

The technical problem solved by the present invention is to provide an information transceiving method and device, storage medium, and terminal, which have the opportunity to directly or indirectly determine the antenna used to determine the precoding information of the PUSCH scheduled by the PDCCH according to the first TCI state information Port information and/or rank information of the PUSCH scheduled by the PDCCH.

To solve the above technical problems, an embodiment of the present invention provides a method for receiving and sending information, including: acquiring configuration information of CORESET, where the configuration information of CORESET includes first TCI status information; and receiving information according to the first TCI status information And/or send.

Optionally, if the CORESET configuration information indicates that the CORESET is CORESET0, and the QCL-TypeD reference signal indicated by the first TCI status information is an SRS, then the SRS and the SSB have a QCL relationship.

Optionally, the information transceiving method further includes: receiving and/or demodulating a PDCCH according to the first TCI status information; at least according to the DCI in the PDCCH, obtaining information for determining the PUSCH scheduled by the PDCCH Antenna port information for precoding information.

Optionally, obtaining the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH at least according to the DCI in the PDCCH includes: if the DCI is used for codebook-based uplink transmission, and the DCI The QCL-TypeD reference signal indicated by the included second TCI state information is an SRS, and the number of SRS ports is antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH.

Optionally, obtaining the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH at least according to the DCI in the PDCCH includes: if the DCI is used for codebook-based uplink transmission, and the DCI The QCL-TypeD reference signal indicated by the included second TCI state information is a CSI-RS, and the number of ports of the CSI-RS is antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH.

Optionally, the information transceiving method further includes: receiving and/or demodulating the PDCCH according to the first TCI status information; if the DCI in the PDCCH is used for codebook-based uplink transmission, then according to the The second TCI status information included in the DCI determines the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH.

Optionally, determining the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH according to the second TCI status information included in the DCI includes: a preset in the second TCI status information included in the DCI The number of bits is used to indicate the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH.

Optionally, the preset number of bits in the second TCI state information included in the DCI are 1 MSB bits or 1 LSB bits.

Optionally, the information transceiving method further includes: receiving and/or demodulating the PDCCH according to the first TCI status information; if the DCI in the PDCCH is used for codebook-based uplink transmission, then according to the The coding information and layer number fields of the PDCCH determine the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH.

Optionally, determining the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH according to the coding information and the layer number field of the PDCCH includes: a preset number in the coding information and the layer number field The bit is used to indicate the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH.

Optionally, the preset number of bits in the coding information and layer number field is 1 MSB bit or 1 LSB bit.

Optionally, the information transceiving method further includes: receiving and/or demodulating a PDCCH according to the first TCI state information; and determining the rank information of the PUSCH scheduled by the PDCCH at least according to the DCI in the PDCCH.

Optionally, determining the rank information of the PUSCH scheduled by the PDCCH at least according to the DCI in the PDCCH includes: if the DCI is used for non-codebook-based uplink transmission, the DCI includes a preset number of bits, Indicate the rank information of the PUSCH scheduled by the PDCCH.

Optionally, the information transceiving method further includes: receiving and/or demodulating the PDCCH according to the first TCI status information; if the DCI in the PDCCH is used for non-codebook-based uplink transmission, then The second TCI status information included in the DCI determines the rank information of the PUSCH scheduled by the PDCCH.

Optionally, determining the rank information of the PUSCH scheduled by the PDCCH according to the second TCI status information included in the DCI includes: a preset number of bits in the second TCI status information included in the DCI are used to indicate the The rank information of the PUSCH scheduled by the PDCCH.

Optionally, the preset number of bits in the second TCI state information included in the DCI is 2 MSB bits or 2 LSB bits.

Optionally, the information transceiving method further includes: receiving and/or demodulating the PDCCH according to the first TCI status information; if the DCI in the PDCCH is used for non-codebook-based uplink transmission, then according to the antenna The port field determines the rank information of the PUSCH scheduled by the PDCCH.

Optionally, determining the rank information of the PUSCH scheduled by the PDCCH according to the antenna port field includes: a preset number of bits in the antenna port field are used to indicate the rank information of the PUSCH scheduled by the PDCCH.

Optionally, the preset number of bits in the antenna port field is 2 MSB bits or 2 LSB bits.

In order to solve the above technical problems, an embodiment of the present invention provides an information transceiving device, including: an acquisition module, adapted to acquire CORESET configuration information, the CORESET configuration information includes first TCI status information; a control module, adapted to For the first TCI status information, information is received and/or sent.

In order to solve the above technical problem, an embodiment of the present invention provides a storage medium on which a computer instruction is stored, and the computer program executes the steps of the above information transceiving method when the computer program is run by a processor.

In order to solve the above technical problems, an embodiment of the present invention provides a terminal, including a memory and a processor, the memory stores computer instructions that can run on the processor, and the processor executes the computer instructions when the computer instructions are run. The steps of the above method for sending and receiving information.

Compared with the prior art, the technical solution of the embodiment of the present invention has the following beneficial effects:

In the embodiment of the present invention, the configuration information of CORESET containing the first TCI state information is acquired by setting, compared with the prior art or it is impossible to determine the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH , Or the rank information of the PUSCH cannot be determined, using the solution of the embodiment of the present invention, there is an opportunity to directly or indirectly determine the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH according to the first TCI state information, and /Or rank information of the PUSCH scheduled by the PDCCH.

Further, the configuration information set in the CORESET indicates that the CORESET is CORESET0, and the QCL-TypeD reference signal indicated by the first TCI state information is SRS, and the SRS and SSB have a QCL relationship, which is compared with the prior art , Only the case where the RSs are all downlink RSs is specified, but there is a lack of provisions for the case where RSs include both downlink signals and uplink signals. With the solution of the embodiment of the present invention, the SRS and SSB can be set. It has a QCL relationship, and effectively regulates the situation that the RS contains both downlink signals and uplink signals, so as to ensure the consistency of idle state UEs and connected state UEs.

Further, it is set to obtain the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH at least according to the DCI in the PDCCH. Compared with the prior art, it may not be possible to determine the PUSCH used to determine the PDCCH scheduling. For the antenna port information of the precoding information, the solution of the embodiment of the present invention can be used to accurately determine the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH.

Further, setting the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH according to the second TCI state information contained in the DCI may not be able to determine the PUSCH used to determine the PDCCH scheduling in the prior art. For the antenna port information of the precoding information, the solution of the embodiment of the present invention can be used to accurately determine the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH.

Further, it is configured to determine the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH according to the coding information and the layer number field of the PDCCH. Compared with the prior art, it may be impossible to determine the antenna port information used to determine the PDCCH. The antenna port information of the precoding information of the scheduled PUSCH can be accurately determined by using the solution of the embodiment of the present invention to determine the antenna port information of the precoding information of the PUSCH scheduled by the PDCCH.

Further, it is set to determine the rank information used to determine the PUSCH scheduled by the PDCCH at least according to the DCI in the PDCCH. Compared with the prior art, it may not be possible to determine the rank information of the PUSCH. Accurately determine the rank information of PUSCH.

Description of the drawings

FIG. 1 is a flowchart of a first method for sending and receiving information in an embodiment of the present invention;

2 is a partial flowchart of a second method for sending and receiving information in an embodiment of the present invention;

FIG. 3 is a partial flowchart of a third method for sending and receiving information in an embodiment of the present invention;

4 is a partial flowchart of a fourth method for sending and receiving information in an embodiment of the present invention;

FIG. 5 is a partial flowchart of a fifth method for sending and receiving information in an embodiment of the present invention;

FIG. 6 is a partial flowchart of a sixth method for sending and receiving information in an embodiment of the present invention;

FIG. 7 is a partial flowchart of a seventh method for sending and receiving information in an embodiment of the present invention;

Fig. 8 is a schematic structural diagram of an information transceiving device in an embodiment of the present invention.

Detailed ways

As mentioned earlier, in future standard protocols, such as Rel-17, a project to support a unified TCI state-based beam indication framework for uplink and downlink, that is, for uplink transmission, it schedules DCI, such as DCI 0_1/DCI 0_2, The SRI field may no longer be included. Instead, the transmission configuration indication status TCI field is used. In Rel-15/16, the TCI field is used to indicate related transmission information, such as airspace information, Doppler spread, and more. Doppler shift (Doppler shift), delay spread (delay spread), average delay (average delay), that is, for uplink transmission, if the unified uplink and downlink indication framework based on the TCI state is supported, it is easy to cause uncertainty The antenna port information used for the precoding information of the PUSCH, or the problem that the rank information of the PUSCH cannot be determined. The inventors of the present invention have discovered through research that for codebook-based uplink transmission, according to the TCI field in the scheduling DCI, the terminal can only learn the spatial information of the PUSCH, but cannot specifically learn the antenna used to determine the precoding information of the PUSCH. Port information: For non-codebook-based uplink transmission, according to the TCI field in its scheduling DCI, the terminal can only learn the spatial information of the PUSCH, but cannot learn its rank (rank) information.

In the embodiment of the present invention, configuration information of CORESET is acquired, and the configuration information of CORESET includes first TCI state information; information is received and/or sent according to the first TCI state information. With the above solution, the configuration information of CORESET containing the first TCI state information is acquired by setting, compared with the prior art, either the antenna port information used to determine the precoding information of the PUSCH cannot be obtained, or the rank information of the PUSCH cannot be determined. Using the solution of the embodiment of the present invention, there is an opportunity to directly or indirectly determine the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH and/or the PUSCH scheduled by the PDCCH according to the first TCI state information The rank information.

In order to make the above objectives, features and beneficial effects of the present invention more obvious and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to Fig. 1, Fig. 1 is a flowchart of a first method for sending and receiving information in an embodiment of the present invention. The first method for sending and receiving information may include step S11 to step S12:

Step S11: Obtain configuration information of CORESET, where the configuration information of CORESET includes first TCI state information;

Step S12: Perform information reception and/or transmission according to the first TCI status information.

It can be understood that, in specific implementation, the method can be implemented in the form of a software program that runs on a processor integrated inside a chip or a chip module.

In the specific implementation of step S11, the TCI state (State) information of the control resource set (Control Resource Set, CORESET) can be configured.

Specifically, taking NR Rel-15/16 as an example, the media access control layer (Media Access Control, MAC) control element (Control Element, CE) is supported to configure the TCI state of CORESET 0.

In the specific implementation of step S12, the information receiving and sending method in the embodiment of the present application performs information receiving and/or sending according to the first TCI status information.

Further, if the configuration information of the CORESET indicates that the CORESET is CORESET0, and the QCL-TypeD reference signal indicated by the first TCI status information is an SRS, then the SRS and the SSB have a quasi co-site address (Quasi co-site). location, QCL) relationship.

Specifically, the RSs included in the TCI state in NR Rel-15/16 are all downlink RSs, such as CSI-RS, or SSB. When the TCI state configured by CORESET 0 includes the CSI-RS, in order to ensure that the UE in the idle state Consistent with the UE in the connected state, the protocol is further standardized, and this CSI-RS has a QCL relationship with the SSB.

In future standard protocols, such as Rel-17 project to support a unified TCI state-based indication framework for uplink and downlink, that is, the reference signal (Reference Signal, RS) included in the TCI state may include uplink signals in addition to downlink signals. Signals, such as SRS, that is, the RS included in the TCI state may be a synchronization signal block (Synchronization Signal block, SSB), a channel state information reference signal (Channel State Information Reference Signal, CSI-RS), or an SRS, resulting in CORESET 0 configuration When the RS included in the TCI state is SRS, if no further constraint conditions are set, it will be difficult to ensure the consistency between the idle state UE and the connected state UE.

In the embodiment of the present invention, the configuration information set in the CORESET indicates that the CORESET is CORESET0, and the quasi co-location type D (QCL-TypeD) indicated by the first TCI status information The reference signal is the SRS. The SRS and the SSB have a QCL relationship. Compared with the prior art, only the case where the RSs are all downlink RSs is specified, but there is a lack of RSs containing both downlink signals and uplink signals. Condition regulation, using the scheme of the embodiment of the present invention, the QCL relationship between the SRS and the SSB can be set to effectively stipulate the situation that the RS contains both downlink signals and uplink signals, so as to ensure that the UE in the idle state and the UE in the connected state are effectively regulated. Consistency.

Referring to FIG. 2, FIG. 2 is a partial flowchart of the second method for sending and receiving information in an embodiment of the present invention. The second method for sending and receiving information may include step S11 to step S12 shown in FIG. 1, and may also include step S21 to step S22. Each step is described below.

It should be pointed out that the sequence number of each step in this embodiment does not represent a limitation on the execution order of each step. For example, steps S21 to S22 can be executed between steps S11 and S12, and can also be executed after step S12.

In step S21, the PDCCH is received and/or demodulated according to the first TCI state information.

In step S22, the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH is obtained at least according to the DCI in the PDCCH.

In the embodiment of the present invention, the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH is obtained by setting at least the DCI in the PDCCH. Compared with the prior art, it may not be possible to determine the For the antenna port information of the PUSCH precoding information, the solution of the embodiment of the present invention can be used to accurately determine the antenna port information used to determine the PUSCH precoding information.

In a specific implementation manner of the embodiment of the present invention, the step of obtaining antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH according to at least the DCI in the PDCCH may include: if the DCI is used For codebook-based uplink transmission, and the QCL-TypeD reference signal indicated by the second TCI status information included in the DCI is an SRS, the number of SRS ports is the antenna used to determine the precoding information of the PUSCH scheduled by the PDCCH Port information.

It should be pointed out that in this embodiment of the application, in order to distinguish the TCI status information contained in the CORESET configuration information from the TCI status information contained in the DCI, the first TCI status information is used to indicate the TCI contained in the CORESET configuration information. Status information, using the second TCI status information to represent the TCI status information contained in the DCI.

In another specific implementation manner of the embodiment of the present invention, the step of obtaining antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH according to at least the DCI in the PDCCH may include: if the DCI Used for codebook-based uplink transmission, and the QCL-TypeD reference signal indicated by the second TCI status information included in the DCI is a CSI-RS, and the number of ports of the CSI-RS is used to determine the PDCCH scheduling Antenna port information of PUSCH precoding information.

In the embodiment of the present invention, by setting the second TCI state information contained in the DCI to determine the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH, compared to the prior art, it may not be possible to determine the To determine the antenna port information of the precoding information of the PUSCH scheduled by the PDCCH, using the solution of the embodiment of the present invention, the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH can be accurately determined.

Referring to FIG. 3, FIG. 3 is a partial flowchart of a third method for sending and receiving information in an embodiment of the present invention. The third method for sending and receiving information may include steps S11 to S12 shown in FIG. 1, and may also include steps S31 to S32. Each step is described below.

It should be pointed out that the sequence number of each step in this embodiment does not represent a limitation on the execution order of each step. For example, steps S31 to S32 can be executed between steps S11 and S12, and can also be executed after step S12.

In step S31, the PDCCH is received and/or demodulated according to the first TCI state information.

In the specific implementation, for more details about step S31, please refer to the description of step S21 in FIG. 2 for execution, which will not be repeated here.

In step S32, if the DCI in the PDCCH is used for codebook-based uplink transmission, determine the antenna used to determine the precoding information of the PUSCH scheduled by the PDCCH according to the second TCI status information contained in the DCI Port information.

Further, according to the second TCI state information contained in the DCI, the step of determining antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH may include: The preset number of bits is used to indicate the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH.

Further, the preset number of bits in the second TCI state information that the DCI may include is 1 MSB bit or 1 LSB bit.

As a non-limiting example, if the downlink control information is used for codebook-based uplink transmission, and the terminal obtains port information through the TCI field, a possible way is as follows:

If the high-level parameters (such as tci-PresentInDCI) are not enabled, the TCI field contains 1 bit, such as X ₀ , if X ₀ =0, then the number of ports is 2, if X0 = 1, the number of ports is 4; otherwise, If the high-level parameter (for example, tci-PresentInDCI) is enabled, the TCI field contains 4 bits, such as X ₀ X ₁ X ₂ X ₃ , where X0 is used to indicate port number information, and the 3 bits X1X2X3 are used to indicate TCI status.

In the embodiment of the present invention, the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH is determined by setting the second TCI status information contained in the DCI, which may not be determined compared to the prior art. The antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH can accurately determine the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH by using the solution of the embodiment of the present invention.

Referring to FIG. 4, FIG. 4 is a partial flowchart of a fourth method for sending and receiving information in an embodiment of the present invention. The fourth method for sending and receiving information may include steps S11 to S12 shown in FIG. 1, and may also include steps S41 to S42, and each step is described below.

It should be pointed out that the sequence number of each step in this embodiment does not represent a limitation on the execution order of each step. For example, steps S41 to S42 can be executed between steps S11 and S12, and can also be executed after step S12.

In step S41, the PDCCH is received and/or demodulated according to the first TCI state information.

In the specific implementation, for more details about step S41, please refer to the description of step S21 in FIG. 2 for execution, which will not be repeated here.

In step S42, if the DCI in the PDCCH is used for codebook-based uplink transmission, determine the antenna used to determine the precoding information of the PUSCH scheduled by the PDCCH according to the coding information and layer number field of the PDCCH Port information.

Further, the step of determining the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH according to the coding information and the layer number field of the PDCCH may include: presets in the coding information and the layer number field The number of bits is used to indicate the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH.

Furthermore, the preset number of bits in the coding information and layer number field may be 1 MSB bit or 1 LSB bit.

As a non-limiting example, if the downlink control information is used for codebook-based uplink transmission, the terminal obtains the information according to the coding information and the number of layers (Precoding information and number of layers) field in the DCI of the PDCCH. To determine the antenna port information of the precoding information of the PUSCH scheduled by the PDCCH, in a specific implementation manner of the embodiment of the present invention, 1 MSB bit or 1 LSB bit of the Precoding information and number of layers field is used to indicate Number of ports.

In another specific implementation manner of the embodiment of the present invention, the Precoding information and number of layers field may be 5 bits, such as X0X1X2X3X4, where X0 is used to represent port number information, and X1X2X3X4 is used to represent Precoding information and number of layers information.

In the embodiment of the present invention, the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH is determined by setting the coding information and the layer number field of the PDCCH, which may not be determined compared to the prior art. The antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH can accurately determine the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH by using the solution of the embodiment of the present invention.

Referring to FIG. 5, FIG. 5 is a partial flowchart of a fifth method for sending and receiving information in an embodiment of the present invention. The fifth information transceiving method may include step S11 to step S12 shown in FIG. 1, and may also include step S51 to step S52, and each step will be described below.

It should be pointed out that the sequence number of each step in this embodiment does not represent a limitation on the execution order of each step. For example, steps S51 to S52 can be executed between steps S11 and S12, and can also be executed after step S12.

In step S51, the PDCCH is received and/or demodulated according to the first TCI state information.

In the specific implementation, for more details about step S51, please refer to the description of step S21 in FIG. 2 for execution, which will not be repeated here.

In step S52, the rank information of the PUSCH scheduled by the PDCCH is determined according to at least the DCI in the PDCCH.

Further, the step of determining the rank information of the PUSCH scheduled by the PDCCH at least according to the DCI in the PDCCH may include: if the DCI is used for non-codebook-based uplink transmission, the DCI includes a preset number of Bit to indicate the rank information of the PUSCH scheduled by the PDCCH.

In the embodiment of the present invention, the rank information of the PUSCH scheduled by the PDCCH is determined by setting at least the DCI in the PDCCH. Compared with the prior art, the rank information of the PUSCH may not be determined. Solution, the rank information of PUSCH can be accurately determined.

Referring to FIG. 6, FIG. 6 is a partial flowchart of the sixth method for sending and receiving information in an embodiment of the present invention. The sixth information transceiving method may include step S11 to step S12 shown in FIG. 1, and may also include step S61 to step S62, and each step will be described below.

It should be pointed out that the sequence number of each step in this embodiment does not represent a limitation on the execution order of each step. For example, steps S61 to S62 can be executed between steps S11 and S12, and can also be executed after step S12.

In step S61, the PDCCH is received and/or demodulated according to the first TCI state information.

In the specific implementation, for more details about step S61, please refer to the description of step S21 in FIG. 2 for execution, which will not be repeated here.

In step S62, if the DCI in the PDCCH is used for non-codebook-based uplink transmission, the rank information of the PUSCH scheduled by the PDCCH is determined according to the second TCI status information included in the DCI.

Further, according to the second TCI status information contained in the DCI, the step of determining the rank information of the PUSCH scheduled by the PDCCH may include: a preset number of bits in the second TCI status information contained in the DCI are used to indicate Rank information of the PUSCH scheduled by the PDCCH.

Further, the preset number of bits in the second TCI state information included in the DCI may be 2 MSB bits or 2 LSB bits.

As a non-limiting example, if the downlink control information is used for non-codebook-based uplink transmission, and the terminal obtains rank information through the TCI field, then TCI can be used in a specific implementation of the embodiment of the present invention. The 2 MSB bits of the field are used to indicate rank information; alternatively, 2 LSB bits may be used to indicate rank information.

If the high-level parameters (such as tci-PresentInDCI) are not enabled, the TCI field contains 2 bits, such as X0 and X1. If X0X1=00, it means the rank is 1, if X0X1=0, it means the rank is 2, and if X0X1= 10, it means that the rank is 3, if X0X1=11, it means that the rank is 4;

Otherwise, if a high-level parameter (for example, tci-PresentInDCI) is enabled, the TCI field contains 5 bits, such as X0X1X2X3X4, where the 2 bits X0X1 are used to indicate rank information, and the 3 bits X2X3X4 are used to indicate the TCI status.

In the embodiment of the present invention, by setting a preset number of bits in the second TCI status information included in the DCI to indicate the rank information of the PUSCH scheduled by the PDCCH, it may not be possible to determine the PUSCH compared to the prior art. The rank information of the PUSCH can be accurately determined by adopting the scheme of the embodiment of the present invention.

Referring to FIG. 7, FIG. 7 is a partial flowchart of a seventh method for sending and receiving information in an embodiment of the present invention. The seventh method for sending and receiving information may include steps S11 to S12 shown in FIG. 1, and may also include steps S71 to S72. Each step is described below.

It should be pointed out that the sequence number of each step in this embodiment does not represent a limitation on the execution order of each step. For example, steps S71 to S72 can be executed between steps S11 and S12, and can also be executed after step S12.

In step S71, the PDCCH is received and/or demodulated according to the first TCI state information.

In the specific implementation, for more details about step S71, please refer to the description of step S21 in FIG. 2 for execution, which will not be repeated here.

In step S72, if the DCI in the PDCCH is used for non-codebook-based uplink transmission, the rank information of the PUSCH scheduled by the PDCCH is determined according to the antenna port field.

Further, according to the antenna ports (Antenna ports) field, the step of determining the rank information of the PUSCH scheduled by the PDCCH may include: a preset number of bits in the antenna port field are used to indicate the PUSCH scheduled by the PDCCH The rank information.

Furthermore, the preset number of bits in the antenna port field is 2 MSB bits or 2 LSB bits.

As a non-limiting example, if the downlink control information is used for non-codebook-based uplink transmission, and the terminal obtains rank information through the antenna port field, in a specific implementation manner of the embodiment of the present invention, The 2 MSB bits of the antenna port field are used to indicate rank information; conversely, 2 LSB bits can also be used to indicate rank information.

The antenna port field is 5 bits, such as X0X1X2X3X4, where X0X1 is used to indicate port number information, and X2X3X4 is used to indicate antenna port information.

In the embodiment of the present invention, by setting the rank information of the PUSCH scheduled by the PDCCH according to the antenna port field, compared with the prior art that may not be able to determine the rank information of the PUSCH, the solution in the embodiment of the present invention is adopted, The rank information of PUSCH can be accurately determined.

Referring to FIG. 8, FIG. 8 is a schematic structural diagram of an information transceiving device in an embodiment of the present invention. The information transceiving device may include:

The obtaining module 81 is adapted to obtain configuration information of CORESET, where the configuration information of CORESET includes first TCI state information;

The control module 82 is adapted to receive and/or send information according to the first TCI status information.

In a specific implementation, the above-mentioned device may correspond to a chip with data processing function in user equipment, such as a baseband chip; or a chip module including a chip with data processing function in user equipment, or a user equipment.

For the principle, specific implementation, and beneficial effects of the information transceiving device, please refer to the foregoing and related descriptions of the information transceiving method shown in FIG. 1 to FIG. 7, which will not be repeated here.

It should be pointed out that this technical solution can be applied to 5G (5 Generation) communication systems, 4G and 3G communication systems, and various new communication systems in the future, such as 6G and 7G.

The embodiment of the present invention also provides a storage medium on which computer instructions are stored, and the computer instructions execute the steps of the foregoing method when the computer instructions are executed. The storage medium may be a computer-readable storage medium, for example, it may include non-volatile memory (non-volatile) or non-transitory (non-transitory) memory, and may also include optical disks, mechanical hard drives, solid state hard drives, and the like.

Specifically, in the embodiment of the present invention, the processor may be a central processing unit (central processing unit, CPU for short), and the processor may also be other general-purpose processors or digital signal processors (DSP for short). ), application specific integrated circuit (ASIC for short), field programmable gate array (FPGA for short) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.

It should also be understood that the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (read-only memory, ROM for short), programmable read-only memory (programmable ROM, PROM for short), erasable PROM (EPROM for short) , Electrically Erasable Programmable Read-Only Memory (EPROM, EEPROM for short) or flash memory. The volatile memory may be a random access memory (random access memory, RAM for short), which is used as an external cache. By way of exemplary but not restrictive description, many forms of random access memory (random access memory, referred to as RAM) are available, such as static random access memory (static RAM, referred to as SRAM), dynamic random access memory (DRAM), synchronous Dynamic random access memory (synchronous DRAM, referred to as SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, referred to as DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, referred to as ESDRAM), Synchronously connect dynamic random access memory (synchlink DRAM, referred to as SLDRAM) and direct memory bus random access memory (direct rambus RAM, referred to as DR RAM).

An embodiment of the present invention also provides a terminal, including a memory and a processor, the memory stores computer instructions that can run on the processor, and the processor executes the steps of the above method when the computer instructions are executed. . The terminal includes, but is not limited to, terminal devices such as mobile phones, computers, and tablets.

Specifically, the terminal in the embodiments of the present application may refer to various forms of user equipment (user equipment, UE for short), access terminal, user unit, user station, mobile station, mobile station (mobile station, MS), remote Station, remote terminal, mobile equipment, user terminal, terminal equipment, wireless communication equipment, user agent, or user device. The terminal device can also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), Handheld devices with wireless communication functions, computing devices, or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in the future 5G network, or future evolution of the public land mobile communication network (Public Land Mobile Network, referred to as The terminal equipment in the PLMN) is not limited in the embodiment of the present application.

Regarding the various modules/units contained in the various devices and products described in the above embodiments, they may be software modules/units, hardware modules/units, or part software modules/units and part hardware modules/units. . For example, for various devices and products that are applied to or integrated in a chip, the various modules/units contained therein can be implemented in the form of hardware such as circuits, or at least part of the modules/units can be implemented in the form of software programs. Runs on the integrated processor inside the chip, and the remaining (if any) part of the modules/units can be implemented by hardware methods such as circuits; for each device and product applied to or integrated in the chip module, the modules/units contained therein can be All are implemented by hardware such as circuits. Different modules/units can be located in the same component (such as a chip, circuit module, etc.) or different components of the chip module, or at least part of the modules/units can be implemented by software programs. The software program runs on the processor integrated inside the chip module, and the remaining (if any) part of the modules/units can be implemented by hardware methods such as circuits; for each device and product applied to or integrated in the terminal, the modules contained therein The modules/units can all be implemented by hardware such as circuits, and different modules/units can be located in the same component (for example, chip, circuit module, etc.) or different components in the terminal, or at least part of the modules/units can be implemented in the form of software programs Implementation, the software program runs on the processor integrated inside the terminal, and the remaining (if any) part of the modules/units can be implemented by hardware such as circuits.

Although the present invention is disclosed as above, the present invention is not limited to this. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be subject to the scope defined by the claims.

Claims

A method for sending and receiving information, characterized in that it comprises:

Acquiring configuration information of CORESET, where the configuration information of CORESET includes first TCI state information;

According to the first TCI status information, information is received and/or sent.
The method of sending and receiving information according to claim 1, wherein:

If the configuration information of the CORESET indicates that the CORESET is CORESET0, and the QCL-TypeD reference signal indicated by the first TCI status information is an SRS, then the SRS and the SSB have a QCL relationship.
The method for sending and receiving information according to claim 1, further comprising:

Receiving and/or demodulating the PDCCH according to the first TCI state information;

At least according to the DCI in the PDCCH, the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH is obtained.
The method for information transceiving according to claim 3, wherein, at least according to the DCI in the PDCCH, obtaining the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH comprises:

If the DCI is used for codebook-based uplink transmission, and the QCL-TypeD reference signal indicated by the second TCI status information contained in the DCI is an SRS, the number of SRS ports is used to determine the PUSCH scheduled by the PDCCH Antenna port information for precoding information.
The method for information transceiving according to claim 3, wherein, at least according to the DCI in the PDCCH, obtaining the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH comprises:

If the DCI is used for codebook-based uplink transmission, and the QCL-TypeD reference signal indicated by the second TCI status information contained in the DCI is a CSI-RS, then the number of ports of the CSI-RS is used to determine the The antenna port information of the precoding information of the PUSCH scheduled by the PDCCH.
The method for sending and receiving information according to claim 1, further comprising:

Receiving and/or demodulating the PDCCH according to the first TCI state information;

If the DCI in the PDCCH is used for codebook-based uplink transmission, the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH is determined according to the second TCI state information included in the DCI.
The method for information transceiving according to claim 6, wherein, according to the second TCI state information contained in the DCI, determining the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH comprises:

The preset number of bits in the second TCI status information included in the DCI is used to indicate antenna port information for determining the precoding information of the PUSCH scheduled by the PDCCH.
The method for sending and receiving information according to claim 7, wherein the preset number of bits in the second TCI status information included in the DCI is 1 MSB bit or 1 LSB bit.
The method for sending and receiving information according to claim 1, further comprising:

Receiving and/or demodulating the PDCCH according to the first TCI state information;

If the DCI in the PDCCH is used for codebook-based uplink transmission, the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH is determined according to the coding information and the layer number field of the PDCCH.
The method for information transceiving according to claim 9, characterized in that, according to the coding information and layer number field of the PDCCH, determining the antenna port information used to determine the precoding information of the PUSCH scheduled by the PDCCH comprises:

The coding information and the preset number of bits in the layer number field are used to indicate the antenna port information for determining the precoding information of the PUSCH scheduled by the PDCCH.
The method for sending and receiving information according to claim 10, wherein the preset number of bits in the coded information and layer number fields is 1 MSB bit or 1 LSB bit.
The method for sending and receiving information according to claim 1, further comprising:

Receiving and/or demodulating the PDCCH according to the first TCI state information;

Determine the rank information of the PUSCH scheduled by the PDCCH at least according to the DCI in the PDCCH.
The method for receiving and sending information according to claim 12, wherein the determining the rank information of the PUSCH scheduled by the PDCCH according to at least the DCI in the PDCCH comprises:

If the DCI is used for non-codebook-based uplink transmission, the DCI includes a preset number of bits to indicate rank information of the PUSCH scheduled by the PDCCH.
The method for sending and receiving information according to claim 1, further comprising:

Receiving and/or demodulating the PDCCH according to the first TCI state information;

If the DCI in the PDCCH is used for non-codebook-based uplink transmission, the rank information of the PUSCH scheduled by the PDCCH is determined according to the second TCI state information included in the DCI.
The method for information transceiving according to claim 14, wherein the determining the rank information of the PUSCH scheduled by the PDCCH according to the second TCI status information contained in the DCI comprises:

The preset number of bits in the second TCI status information included in the DCI is used to indicate rank information of the PUSCH scheduled by the PDCCH.
The method for information transceiving according to claim 15, wherein the preset number of bits in the second TCI status information included in the DCI is 2 MSB bits or 2 LSB bits.
The method for sending and receiving information according to claim 1, further comprising:

Receiving and/or demodulating the PDCCH according to the first TCI state information;

If the DCI in the PDCCH is used for non-codebook-based uplink transmission, the rank information of the PUSCH scheduled by the PDCCH is determined according to the antenna port field.
The method for receiving and sending information according to claim 17, wherein, according to the antenna port field, determining the rank information of the PUSCH scheduled by the PDCCH comprises:

The preset number of bits in the antenna port field is used to indicate the rank information of the PUSCH scheduled by the PDCCH.
The method for information transceiving according to claim 18, wherein the preset number of bits in the antenna port field is 2 MSB bits or 2 LSB bits.
An information transceiver device, characterized in that it comprises:

An obtaining module, adapted to obtain configuration information of CORESET, where the configuration information of CORESET includes first TCI state information;

The control module is adapted to receive and/or send information according to the first TCI status information.
A storage medium having a computer program stored thereon, wherein the computer program executes the steps of the information receiving and sending method according to any one of claims 1 to 19 when the computer program is run by a processor.
A terminal comprising a memory and a processor, and a computer program that can run on the processor is stored on the memory, wherein the processor executes any one of claims 1 to 19 when the computer program is running. The steps of the information receiving and sending method described in the item.