CN110958698A

CN110958698A - Information indication method and device

Info

Publication number: CN110958698A
Application number: CN201811133810.9A
Authority: CN
Inventors: 邵家枫
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-09-27
Filing date: 2018-09-27
Publication date: 2020-04-03
Anticipated expiration: 2038-09-27
Also published as: WO2020063275A1; CN110958698B

Abstract

The embodiment of the application discloses an information indication method, which comprises the following steps: the method comprises the steps that terminal equipment receives DCI, wherein the DCI is used for indicating at least two MCS indexes corresponding to at least two transmission blocks, each transmission block in the at least two transmission blocks corresponds to one MCS index in the at least two MCS indexes, the terminal equipment obtains at least two MCS tables corresponding to the at least two transmission blocks, and each transmission block in the at least two transmission blocks corresponds to one MCS table in the at least two MCS tables; receiving at least two transport blocks according to at least two MCS indexes corresponding to the at least two transport blocks and at least two MCS tables corresponding to the at least two transport blocks.

Description

Information indication method and device

Technical Field

The embodiment of the application relates to the field of communication, in particular to an information indication method and device.

Background

In order to cope with explosive mobile data traffic increase, massive mobile communication device connection, and various new services and application scenarios which are continuously emerging in the future, the fifth generation (5G) mobile communication system is produced, and the 5G mobile communication system is also called a new radio access technology (NR) system.

In order to improve the user rate at the cell edge, in the NR system, a plurality of Transmit Receive Points (TRPs) are introduced. A plurality of TRPs send one or more transport blocks carried on a Physical Downlink Shared Channel (PDSCH) to a terminal device, but because the channel qualities of the plurality of TRPs and the terminal device are different, how to select modulation coding information adapted to the channel quality is an urgent problem to be solved.

Disclosure of Invention

The embodiment of the application provides an information indication method and an information indication device, and solves the problem of how to select modulation coding information adaptive to channel quality between a plurality of network devices and terminal devices.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:

in a first aspect, an embodiment of the present application provides an information indication method, where the method is applicable to a terminal device, or the method is applicable to a communication apparatus that can support the terminal device to implement the method, for example, the communication apparatus includes a chip system, and the method includes: receiving Downlink Control Information (DCI), and acquiring at least two Modulation Coding Scheme (MCS) tables corresponding to at least two transmission blocks; the DCI is used for indicating at least two MCS indexes corresponding to at least two transport blocks; each transmission block in the at least two transmission blocks corresponds to one MCS index in the at least two MCS indexes; each of the at least two transport blocks corresponds to one of the at least two MCS tables; then, at least two transport blocks are received according to at least two MCS indexes corresponding to the at least two transport blocks and at least two MCS tables corresponding to the at least two transport blocks. The information indication method provided by the embodiment of the application can enable a transmission block scheduled by one DCI to correspond to two or more MCS tables, thereby improving the utilization rate of system resources under the condition of multi-TRP transmission.

The following implementation manners may be included for obtaining at least two MCS tables corresponding to at least two transport blocks:

in one possible design, at least two MCS tables corresponding to at least two transport blocks are obtained according to higher layer signaling. Thus, using higher layer signaling configuration techniques has the benefits of: the modification to the protocol is less, and at least two MCS tables indicating the correspondence of at least two transport blocks can be simply implemented.

With reference to the above possible design manners, in another possible design, at least two MCS tables corresponding to at least two transport blocks are obtained according to a bit field in the DCI. Specifically, at least two MCS tables corresponding to at least two transport blocks are obtained according to a bit state of a first bit field in the DCI, where the first bit field includes N bits, and N is the number of transport blocks of the at least two transport blocks, or 2, or 3; or, obtaining at least two MCS tables corresponding to at least two transport blocks according to bit states of at least two second bit fields in the DCI, where each of the at least two second bit fields is 1bit, and the number of the second bit fields is the same as the number of the transport blocks of the at least two transport blocks. Therefore, different MCS tables can be dynamically indicated, dynamic setting can be realized along with rapid change of channel quality, and system efficiency can be effectively improved.

With reference to the foregoing possible design manner, in another possible design, at least two MCS tables corresponding to at least two transport blocks are obtained according to first information, where the first information includes at least one of the following: radio Network Temporary Identity (RNTI) for scrambling DCI, a search space in which the DCI is located, or a format of the DCI. Therefore, at least two MCS tables corresponding to at least two transport blocks are indicated in an implicit indication mode, and downlink system overhead is effectively reduced.

With reference to the first aspect and the foregoing possible design manners, in another possible design, before receiving DCI, the method further includes: and sending first notification information, wherein the first notification information is used for notifying the network equipment that the terminal equipment has the capability of receiving at least two transport blocks respectively corresponding to the at least two MCS tables.

With reference to the first aspect and the foregoing possible design manners, in another possible design, before receiving DCI, the method further includes: and receiving first configuration information, wherein the first configuration information is used for configuring at least two transport blocks which indicate that the terminal equipment can receive at least two MCS tables respectively.

With reference to the first aspect and the foregoing possible design manners, in another possible design, before obtaining at least two MCS tables corresponding to at least two transport blocks, the method further includes: and determining a first mode according to the format of the DCI, wherein the first mode is that at least two transport blocks respectively correspond to one MCS table.

In a second aspect, an embodiment of the present application provides an information indication method, where the method is applicable to a network device, or the method is applicable to a communication apparatus that may support the network device to implement the method, for example, the communication apparatus includes a chip system, and the method includes: and transmitting the DCI and indicating at least two MCS tables corresponding to at least two transport blocks. The DCI is used for indicating at least two MCS indexes corresponding to at least two transport blocks; each transmission block in the at least two transmission blocks corresponds to one MCS index in the at least two MCS indexes; each of the at least two transport blocks corresponds to one of the at least two MCS tables; then, at least two transport blocks are transmitted according to at least two MCS indexes corresponding to the at least two transport blocks and at least two MCS tables corresponding to the at least two transport blocks. The information indication method provided by the embodiment of the application can enable a transmission block scheduled by one DCI to correspond to two or more MCS tables, thereby improving the utilization rate of system resources under the condition of multi-TRP transmission.

The following implementations may be included for at least two MCS tables indicating at least two transport block correspondences:

in one possible design, at least two MCS tables for at least two transport blocks are indicated by higher layer signaling. Thus, using higher layer signaling configuration techniques has the benefits of: the modification to the protocol is less, and at least two MCS tables indicating the correspondence of at least two transport blocks can be simply implemented.

In combination with the above possible design manners, in another possible design, at least two MCS tables corresponding to at least two transport blocks are indicated by a bit field in the DCI. Specifically, at least two MCS tables corresponding to at least two transport blocks are indicated by a bit state of a first bit field in the DCI, where the first bit field includes N bits, and N is a transport block number of the at least two transport blocks, or 2, or 3; or, at least two MCS tables corresponding to at least two transport blocks are indicated by bit states of at least two second bit fields in the DCI, each of the at least two second bit fields is 1bit, and the number of the second bit fields is the same as the number of the transport blocks of the at least two transport blocks. Therefore, different MCS tables can be dynamically indicated, dynamic setting can be realized along with rapid change of channel quality, and system efficiency can be effectively improved.

With reference to the foregoing possible design manner, in another possible design, the first information indicates at least two MCS tables corresponding to at least two transport blocks, where the first information includes at least one of: radio Network Temporary Identity (RNTI) for scrambling DCI, a search space in which the DCI is located, or a format of the DCI. Therefore, at least two MCS tables corresponding to at least two transport blocks are indicated in an implicit indication mode, and downlink system overhead is effectively reduced.

With reference to the second aspect and the foregoing possible design manners, in another possible design, before sending the DCI, the method further includes: and receiving first notification information, wherein the first notification information is used for notifying the network equipment that the terminal equipment has the capability of receiving at least two transport blocks respectively corresponding to at least two MCS tables.

With reference to the second aspect and the foregoing possible design manners, in another possible design, before sending the DCI, the method further includes: and sending first configuration information, wherein the first configuration information is used for configuring at least two transport blocks which indicate that the terminal equipment can receive at least two MCS tables respectively.

With reference to the second aspect and the foregoing possible design manners, in another possible design, before indicating at least two MCS tables corresponding to at least two transport blocks, the method further includes: and indicating a first mode according to the format of the DCI, wherein the first mode is that at least two transport blocks respectively correspond to one MCS table.

In a third aspect, an embodiment of the present application further provides an information indicating apparatus, configured to implement the method described in the first aspect. The information indicating apparatus is an information indicating apparatus for a terminal device or a terminal device supported to implement the method described in the first aspect, and for example, the information indicating apparatus includes a chip system. For example, the information indicating apparatus includes: a receiving unit and a processing unit. The receiving unit is configured to receive DCI, where the DCI is configured to indicate at least two modulation and coding scheme MCS indexes corresponding to at least two transport blocks, where each of the at least two transport blocks corresponds to one MCS index of the at least two MCS indexes; the processing unit is configured to acquire at least two MCS tables corresponding to at least two transport blocks indicated by the DCI received by the receiving unit, where each transport block in the at least two transport blocks corresponds to one MCS table in the at least two MCS tables; the receiving unit is further configured to receive the at least two transport blocks according to the at least two MCS indexes corresponding to the at least two transport blocks and the at least two MCS tables corresponding to the at least two transport blocks, which are obtained by the processing unit.

in one possible design, the processing unit is specifically configured to: and acquiring at least two MCS tables corresponding to at least two transport blocks according to the high-layer signaling.

In combination with the above possible design, in another possible design, the processing unit is specifically configured to: and acquiring at least two MCS tables corresponding to at least two transport blocks according to the bit field in the DCI received by the receiving unit. Specifically, at least two MCS tables corresponding to at least two transport blocks are obtained according to a bit state of a first bit field in the DCI received by the receiving unit, where the first bit field includes N bits, and N is a transport block number of the at least two transport blocks, or 2, or 3; or, at least two MCS tables corresponding to at least two transport blocks are obtained according to bit states of at least two second bit fields in the DCI received by the receiving unit, where each of the at least two second bit fields is 1bit, and the number of the second bit fields is the same as the number of the transport blocks of the at least two transport blocks.

In combination with the above possible design, in another possible design, the processing unit is specifically configured to: obtaining at least two MCS tables corresponding to at least two transport blocks according to first information, wherein the first information comprises at least one of the following: RNTI for scrambling DCI, search space where DCI is located, or format of DCI.

In combination with the above possible design, in another possible design, the apparatus further includes: and a sending unit. The sending unit is configured to send first notification information, where the first notification information is used to notify a network device that a terminal device has a capability of receiving at least two transport blocks corresponding to at least two MCS tables, respectively.

In combination with the above possible design, in another possible design, the receiving unit is further configured to: and receiving first configuration information, wherein the first configuration information is used for configuring at least two transport blocks which indicate that the terminal equipment can receive at least two MCS tables respectively.

In another possible design, in combination with the above possible design, the processing unit is further configured to: and determining a first mode according to the format of the DCI received by the receiving unit, wherein the first mode is that at least two transport blocks respectively correspond to one MCS table.

In a fourth aspect, an embodiment of the present application further provides an information indicating apparatus, configured to implement the method described in the second aspect. The information indicating apparatus is a network device or an information indicating apparatus supporting the network device to implement the method described in the second aspect, and for example, the information indicating apparatus includes a chip system. For example, the information indicating apparatus includes: a sending unit and a processing unit. The transmitting unit is configured to transmit DCI, where the DCI is configured to indicate at least two modulation and coding scheme MCS indexes corresponding to at least two transport blocks, where each of the at least two transport blocks corresponds to one MCS index of the at least two MCS indexes; the processing unit is configured to indicate at least two MCS tables corresponding to at least two transport blocks, where each transport block in the at least two transport blocks corresponds to one MCS table in the at least two MCS tables; the sending unit is further configured to send the at least two transport blocks according to at least two MCS indexes corresponding to the at least two transport blocks and at least two MCS tables corresponding to the at least two transport blocks.

in one possible design, the processing unit is specifically configured to: and indicating at least two MCS tables corresponding to at least two transport blocks through high-layer signaling.

In combination with the above possible design, in another possible design, the processing unit is specifically configured to: at least two MCS tables corresponding to the at least two transport blocks are indicated by a bit field in the DCI. Specifically, at least two MCS tables corresponding to at least two transport blocks are indicated by a bit state of a first bit field in the DCI, where the first bit field includes N bits, and N is a transport block number of the at least two transport blocks, or 2, or 3; or, at least two MCS tables corresponding to at least two transport blocks are indicated by bit states of at least two second bit fields in the DCI, each of the at least two second bit fields is 1bit, and the number of the second bit fields is the same as the number of the transport blocks of the at least two transport blocks.

In combination with the above possible design, in another possible design, the processing unit is specifically configured to: indicating at least two MCS tables corresponding to at least two transport blocks by first information, the first information including at least one of: RNTI for scrambling DCI, search space where DCI is located, or format of DCI.

In combination with the above possible design, in another possible design, the apparatus further includes: and a receiving unit. The receiving unit is configured to receive first notification information, where the first notification information is used to notify the network device that the terminal device has a capability of receiving at least two transport blocks corresponding to at least two MCS tables, respectively.

In combination with the above possible design, in another possible design, the sending unit is further configured to: and sending first configuration information, wherein the first configuration information is used for configuring at least two transport blocks which indicate that the terminal equipment can receive at least two MCS tables respectively.

In another possible design, in combination with the above possible design, the processing unit is further configured to: and indicating a first mode through the format of the DCI, wherein the first mode is that at least two transport blocks respectively correspond to one MCS table.

In a fifth aspect, an embodiment of the present application provides a terminal device, where the terminal device has a function of implementing a behavior of the terminal device in the above method design. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions. The modules may be software and/or hardware.

In one possible design, a structure of a terminal device includes a transceiver and a processor, and the transceiver is configured to support the terminal device to receive DCI for indicating at least two MCS indices corresponding to at least two transport blocks, where each of the at least two transport blocks corresponds to one of the at least two MCS indices. The processor is configured to obtain at least two MCS tables corresponding to at least two transport blocks, where each transport block of the at least two transport blocks corresponds to one MCS table of the at least two MCS tables.

In a sixth aspect, an embodiment of the present application provides a network device, where the network device has a function of implementing a behavior of the network device in practice. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions.

In one possible design, the network device includes a processor and a transceiver in its structure, and the processor is configured to support the network device to perform the corresponding functions in the above method. The transceiver is used for supporting communication between the network device and the terminal device, and transmitting information or instructions related to the method to the terminal device or receiving information or instructions related to the method transmitted by the terminal device. The network device may also include a memory, coupled to the processor, that retains program instructions and data necessary for the network device.

In a seventh aspect, an embodiment of the present application further provides a computer-readable storage medium, including: computer software instructions; the computer software instructions, when executed in the information indicating apparatus, cause the information indicating apparatus to perform the methods of the first to second aspects described above.

In an eighth aspect, embodiments of the present application further provide a computer program product including instructions, which, when run in an information indicating apparatus, cause the information indicating apparatus to perform the methods described in the first aspect to the second aspect.

In a ninth aspect, an embodiment of the present application provides a chip system, where the chip system includes a processor and may further include a memory, and is configured to implement the functions of the network device or the terminal device in the foregoing method. The chip system may be formed by a chip, and may also include a chip and other discrete devices.

In a tenth aspect, an embodiment of the present application further provides a communication system, where the communication system includes the terminal device described in the third aspect or an information indicating apparatus supporting the terminal device to implement the method described in the first aspect, and the network device described in the fourth aspect or an information indicating apparatus supporting the network device to implement the method described in the second aspect;

or the communication system comprises the terminal device described in the fifth aspect or an information indicating apparatus supporting the terminal device to implement the method described in the first aspect, and the network device described in the sixth aspect or an information indicating apparatus supporting the network device to implement the method described in the second aspect.

In addition, the technical effects brought by the design manners of any aspect can be referred to the technical effects brought by the different design manners in the first aspect and the second aspect, and are not described herein again.

In the embodiment of the present application, names of the terminal device, the network device, and the information indicating apparatus do not limit the device itself, and in actual implementation, the devices may appear by other names. Provided that the function of each device is similar to the embodiments of the present application, and fall within the scope of the claims of the present application and their equivalents.

Drawings

Fig. 1 is a diagram illustrating an example of DCI transmission provided in the prior art;

fig. 2 is a diagram illustrating a typical scenario of multiple TRP transmission according to an embodiment of the present application;

fig. 3 is a diagram illustrating an architecture of a communication system according to an embodiment of the present application;

fig. 4 is a diagram illustrating an architecture of another communication system according to an embodiment of the present application;

fig. 5 is a flowchart of an information indicating method according to an embodiment of the present application;

fig. 6 is a flowchart of another information indication method provided in the embodiment of the present application;

fig. 7 is a diagram illustrating an example of an information indicating apparatus according to an embodiment of the present disclosure;

FIG. 8 is a block diagram illustrating another exemplary information indicating device according to an embodiment of the present disclosure;

fig. 9 is a diagram illustrating a network device according to an embodiment of the present application;

fig. 10 is a diagram illustrating a composition example of a terminal device according to an embodiment of the present application.

Detailed Description

For clarity and conciseness of the following descriptions of the various embodiments, a brief introduction to the related art is first given:

in a wireless communication system, a network device may employ a dynamic manner to schedule time-frequency resources for data transmission with a terminal device. For example, as shown in fig. 1, for the downlink, the network device may send DCI to the terminal device through a Physical Downlink Control Channel (PDCCH), where the DCI may indicate indication information such as time-frequency resources occupied by the PDSCH and MCS indexes. And the transmission block is loaded on the PDSCH to send downlink data to the terminal equipment. After receiving the DCI, the terminal device may receive the transport block on the PDSCH indicated by the DCI, decode the transport block according to other indication information of the DCI, and acquire downlink data carried on the transport block. Further, for the uplink, the terminal device may send uplink data on a Physical Uplink Shared Channel (PUSCH) indicated by the DCI, and the terminal device may also feed back a result of decoding the transport block to the network device on a Physical Uplink Control Channel (PUCCH) or the PUSCH indicated by the DCI. If the terminal equipment correctly receives the transmission block, the information fed back to the network equipment is Acknowledgement (ACK), and if the terminal equipment incorrectly receives the transmission block, the information fed back to the network equipment is Negative Acknowledgement (NACK). The ACK and NACK information is collectively referred to as hybrid automatic repeat request (HARQ) information in the communication system. Generally, the terminal device feeds back HARQ information corresponding to the PDSCH to the network device, so that the network device can quickly retransmit the terminal device after learning that the terminal device has received an error, thereby ensuring reliability of data transmission.

The time-frequency resources include time-domain resources and/or frequency-domain resources. The NR system supports various time scheduling units, which may be one or more time domain symbols in length. The symbols are Orthogonal Frequency Division Multiplexing (OFDM) symbols. The NR system is composed of slots (slots), one slot including 14 symbols. The NR system supports various subcarrier spacings. The time lengths corresponding to the slot slots under different subcarrier intervals are different. For example, when the subcarrier spacing is 15 kilohertz (kHz), one slot corresponds to a time length of 1 millisecond (ms). For example, when the sub-carriers are spaced apart by 30kHz, one slot corresponds to a time length of 0.5 ms. For example, when the sub-carriers are spaced 60kHz apart, then one slot corresponds to a time length of 0.25 ms. For example, when the sub-carriers are spaced at 120kHz, then one slot corresponds to a time length of 0.125 ms. Since the number of symbols of one slot is 14 symbols at all times, it can be understood that the length of time corresponding to a symbol also varies with the variation of the subcarrier spacing. The frequency domain resource may be one or more Resource Blocks (RBs), or one or more Resource Elements (REs), or one or more carriers/cells, or one or more fractional Bandwidths (BWPs), or one or more RBs on one or more BWPs on one or more carriers, or one or more REs on one or more RBs on one or more BWPs on one or more carriers. The time domain resource may be one or more time slots or one or more symbols over one or more time slots.

In order to improve the user rate at the cell edge, in the NR system, a plurality of TRPs are introduced. Fig. 2 is a diagram illustrating a typical scenario of multi-TRP transmission according to an embodiment of the present application. The first TRP transmits the first PDSCH, and the second TRP transmits the second PDSCH. The first PDSCH is indicated by transmitting first DCI on the first PDCCH, and the second PDSCH is indicated by the first DCI or second DCI transmitted on the second PDCCH. The DCI here may indicate time-frequency resources occupied by the PDSCH, MCS index, and other indication information. The first PDSCH carries a first transmission block, the second PDSCH carries a second transmission block, and the two PDSCHs correspond to different code words. The terminal device may receive the two PDSCHs on the same or different time-frequency resources.

In the NR system, when a network device transmits at least two transport blocks through at least two TRPs, the network device needs to determine MCS information used by the at least two transport blocks according to channel qualities of the at least two TRPs. However, the channel quality of the at least two TRPs and the channel quality of the terminal device may be good for a part of TRPs, and poor for another part of TRPs. Because of the current 3GPP protocol, the MCS information used by at least two transport blocks is MCS information in one MCS table. Therefore, in order to ensure the accuracy of TRP transmission with poor channel quality, the network device can only select a more conservative MCS table to inform MCS information.

The following is the manner in the prior art to indicate the MCS table:

in a first implementation manner, when information indicated by an MCS-table field in a high-level signaling PDSCH configuration (PDSCH-configuration) is qam256, and an RNTI of a scrambled PDCCH is a cell-radio network temporary identity (C-RNTI) or a scheduled radio network temporary identity (CS-RNTI), the terminal device determines MCS information according to MCS table 2 and an MCS index indicated by the DCI using MCS table 2.

In a second implementation manner, when a modulation and coding scheme-cell-network temporal identifier (MCS-C-RNTI) is not configured in the high-level signaling, information indicated by an MCS-table field in a PDSCH configuration (PDSCH-configuration) of the high-level signaling is qam64LowSE, an RNTI of the scrambled PDCCH is C-RNTI, and a search space where the PDCCH is located is a user-specific search space, the terminal device uses MCS table 3, and determines MCS information according to MCS table 3 and an MCS index indicated by DCI.

In a third implementation manner, when the MCS-C-RNTI is configured in the high-level signaling and the RNTI of the scrambled PDCCH is scrambled by the MCS-C-RNTI, the terminal equipment uses the MCS table 3 to determine the MCS information according to the MCS table 3 and the MCS index indicated by the DCI.

In a fourth implementation manner, when the MCS-table field in the high-level signaling semi-persistent scheduling (SPS) -config does not have indication information, the information indicated by the MCS-table field in the high-level signaling PDSCH-config is qam256, and the RNTI of the scrambled PDCCH is CS-RNTI, the terminal device determines the MCS information according to the MCS table 2 and the MCS index indicated by the DCI using the MCS table 2.

In a fifth implementation manner, when the information indicated by the MCS-table field configuration in the SPS-config is qam64LowSE, and the RNTI of the scrambled PDCCH is CS-RNTI, the terminal device determines the MCS information according to the MCS table 3 and the MCS index indicated by the DCI using the MCS table 3.

In a sixth implementable manner, on the condition that the first implementable manner to the fifth implementable manner are not satisfied, the terminal device determines MCS information from the MCS table 1 and an MCS index indicated by the DCI using the MCS table 1.

MCS table 1 to MCS table 3 are shown in tables 1 to 3 below.

TABLE 1

TABLE 2

TABLE 3

However, this results in a decrease of spectral efficiency of TRP transmission with good channel quality, i.e. the TRP with good channel quality has no way to transmit data with higher coding rate or higher modulation order. Therefore, in order to solve this problem, it is necessary to make different transport blocks use MCS information in multiple MCS tables, so how to indicate multiple MCS tables is an urgent problem to be solved.

In order to solve the above problem, an embodiment of the present application provides an information indication method, and the basic principle is as follows: the network equipment indicates at least two MCS tables corresponding to at least two transport blocks, and sends DCI to the terminal equipment, wherein the DCI is used for indicating at least two MCS indexes corresponding to the at least two transport blocks, and the at least two transport blocks are sent according to the at least two MCS indexes corresponding to the at least two transport blocks and the at least two MCS tables corresponding to the at least two transport blocks. After receiving the DCI, the terminal device acquires at least two MCS tables corresponding to at least two transport blocks, and receives the at least two transport blocks according to at least two MCS indexes corresponding to the at least two transport blocks and the at least two MCS tables corresponding to the at least two transport blocks, wherein each transport block in the at least two transport blocks corresponds to one MCS index in the at least two MCS indexes, and each transport block in the at least two transport blocks corresponds to one MCS table in the at least two MCS tables. The information indication method provided by the embodiment of the application can enable a transmission block scheduled by one DCI to correspond to two or more MCS tables, thereby improving the utilization rate of system resources under the condition of multi-TRP transmission and improving the accuracy of TRP transmission.

The terms "first", "second" and "third", etc. in the description and claims of this application and in the drawings are used for distinguishing between different objects and not for limiting a particular order.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

Embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Fig. 3 is a diagram showing an example of an architecture of a communication system that can be applied to the embodiments of the present application. As shown in fig. 3, the communication system includes a core network device 301, a network device 302, and at least one terminal device (such as a terminal device 303 and a terminal device 304 shown in fig. 3). The terminal equipment is connected with the network equipment in a wireless mode, and the network equipment is connected with the core network equipment in a wireless or wired mode. The core network device and the network device may be separate physical devices, or the function of the core network device and the logic function of the network device may be integrated on the same physical device, or a physical device may be integrated with a part of the function of the core network device and a part of the function of the network device. The terminal equipment may be fixed or mobile. Fig. 3 is a schematic diagram, and other network devices, such as a wireless relay device and a wireless backhaul device, may also be included in the communication system, which are not shown in fig. 3. The embodiments of the present application do not limit the number of core network devices, and terminal devices included in the communication system.

A terminal equipment (UE) may be a wireless terminal equipment capable of receiving network equipment scheduling and indication information, and the wireless terminal equipment may be a device providing voice and/or data connectivity to a user, or a handheld device having a wireless connection function, or other processing device connected to a wireless modem. Wireless terminal devices, which may be mobile terminal devices such as mobile telephones (or "cellular" telephones), mobile phones (or mobile phones), computers, and data cards, for example, mobile devices that may be portable, pocket, hand-held, computer-included, or vehicle-mounted, may communicate with one or more core networks or the internet via a radio access network (e.g., RAN). For example, devices such as Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), tablet computers (pads), and computers with wireless transceiving functions. A wireless terminal device may also be referred to as a system, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile station), a Mobile Station (MS), a remote station (remote station), an Access Point (AP), a remote terminal device (remote terminal), an access terminal device (access terminal), a user terminal device (user terminal), a user agent (user agent), a Subscriber Station (SS), a user terminal device (CPE), a terminal (terminal), a User Equipment (UE), a Mobile Terminal (MT), etc. The wireless terminal device may also be a wearable device and a next generation communication system, e.g. a terminal device in a 5G network or a terminal device in a Public Land Mobile Network (PLMN) network for future evolution, a terminal device in an NR communication system, etc.

A network device is an entity, such as a new generation base station (gdnodeb), in a network side for transmitting or receiving signals. The network device may be a device for communicating with the mobile device. The network device may be an AP in a Wireless Local Area Network (WLAN), a Base Transceiver Station (BTS) in a global system for mobile communications (GSM) or Code Division Multiple Access (CDMA), a base station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA), an evolved Node B (eNB, or eNodeB) in a Long Term Evolution (LTE), or a relay station or access point, or a vehicle-mounted device, a wearable device, and a network device in a future 5G network or a network device in a future evolved Public Land Mobile Network (PLMN), or a network device in an NR system, etc. In addition, in this embodiment of the present application, a network device provides a service for a cell, and a terminal device communicates with the network device through a transmission resource (for example, a frequency domain resource or a spectrum resource) used by the cell, where the cell may be a cell corresponding to the network device (for example, a base station), and the cell may belong to a macro base station or a base station corresponding to a small cell (smallcell), where the small cell may include: urban cells (Metro cells), Micro cells (Micro cells), Pico cells (Pico cells), Femto cells (Femto cells), and the like, and the small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-rate data transmission services. Furthermore, the network device may be other means for providing wireless communication functionality for the terminal device, where possible. The embodiments of the present application do not limit the specific technologies and the specific device forms used by the network devices. For convenience of description, in the embodiments of the present application, an apparatus for providing a wireless communication function for a terminal device is referred to as a network device.

The communication system described above may be a 5G NR system. The embodiment of the present application may also be applied to other communication systems, as long as an entity in the communication system needs to send the indication information of the transmission direction, and another entity needs to receive the indication information and determine the transmission direction within a certain time according to the indication information. Fig. 4 is an exemplary diagram of an architecture of another communication system according to an embodiment of the present application. As shown in fig. 4, the base station and the terminal apparatuses 1 to 6 constitute a communication system. In this communication system, terminal apparatuses 1 to 6 can transmit uplink data to a base station, and the base station receives the uplink data transmitted from terminal apparatuses 1 to 6. The base station may transmit downlink data to the terminal apparatuses 1 to 6, and the terminal apparatuses 1 to 6 may receive the downlink data. Further, the terminal apparatuses 4 to 6 may constitute one communication system. In the communication system, terminal device 5 may receive uplink information transmitted by terminal device 4 or terminal device 6, and terminal device 5 may transmit downlink information to terminal device 4 or terminal device 6.

The network equipment and the terminal equipment can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; can also be deployed on the water surface; it may also be deployed on airborne airplanes, balloons, and satellites. The embodiment of the application does not limit the application scenarios of the network device and the terminal device.

The network device and the terminal device may communicate with each other through a licensed spectrum (licensed spectrum), may communicate with each other through an unlicensed spectrum (unlicensed spectrum), and may communicate with each other through both the licensed spectrum and the unlicensed spectrum. The embodiments of the present application do not limit the spectrum resources used between the network device and the terminal device.

The embodiments of the present application may be applicable to downlink signal transmission, may also be applicable to uplink signal transmission, and may also be applicable to device-to-device (D2D) signal transmission. For D2D signaling, the sending device is a terminal device and the corresponding receiving device is also a terminal device. For downlink signal transmission, the sending device is a network device, the corresponding receiving device is a terminal device, and the network device sends at least two transport blocks according to at least two MCS indexes corresponding to the at least two transport blocks and at least two MCS tables corresponding to the at least two transport blocks. For uplink signal transmission, the transmitting device is a terminal device, the corresponding receiving device is a network device, and the terminal device receives at least two transport blocks according to at least two MCS indexes corresponding to the at least two transport blocks and at least two MCS tables corresponding to the at least two transport blocks.

The following describes in detail an information indication method provided in an embodiment of the present application, taking a network device and a terminal device as examples. Fig. 5 is a flowchart of an information indicating method according to an embodiment of the present application. As shown in fig. 5, the method may include:

s501, the network equipment sends the DCI to the terminal equipment.

Illustratively, the DCI is configured to indicate at least two MCS indices corresponding to at least two transport blocks. In the embodiments of the present application, at least two may mean two, three, four, or more. Wherein each of the at least two transport blocks corresponds to one of the at least two MCS indices. It is to be understood that the number of transport blocks may be greater than or equal to the number of MCS indices. For example, when the number of transport blocks is 2, the number of MCS indexes may be 2 or 1. When the number of transport blocks is 3, the number of MCS indices may be 3, 2, or 1. When the number of transport blocks is 4, the number of MCS indices may be 4, 3, 2, or 1. It is understood that at least two MCS indices may have the same or different values. When the number of transport blocks is equal to the number of MCS indices, each transport block may correspond to a different MCS index. When the number of the transport blocks is greater than the number of the MCS indexes, at least two transport blocks corresponding to the same MCS index exist in the transport blocks indicated by the DCI, where the same MCS index may refer to the same MCS index or the same value of the MCS index. The at least two transport blocks may correspond to the same codeword or different codewords.

For convenience, two transport blocks are illustrated below. It is assumed that DCI is used to indicate that two transport blocks correspond to two MCS indexes. The two MCS indices may be different. For example, one transport block corresponds to MCS index 4 in the MCS index column in the MCS table 1, and the other transport block corresponds to MCS index 5 in the MCS index column in the MCS table 1. Alternatively, it is assumed that DCI is used to indicate that two transport blocks correspond to the same MCS index. Both transport blocks correspond to MCS index 4 in the MCS index column in MCS table 1 described above.

In addition, at least two MCS indexes corresponding to at least two transport blocks may be indicated according to a bit field in the DCI. Specifically, the DCI includes at least one MCS bit field, and each MCS bit field in the at least one MCS bit field is used to indicate an MCS index corresponding to at least one transport block of the at least two transport blocks. The terminal device may determine the bit state in the at least one MCS bit field by receiving the DCI, and further determine at least two MCS indexes corresponding to the at least two transport blocks according to the bit state of the at least one MCS bit field. It can be understood that the at least two MCS indexes may be values of the same MCS index, as shown in table 4, the first transport block and the second transport block correspond to the same MCS index, and are both MCS index 1; for another example, as shown in table 5, the MCS index corresponding to the first transmission is different from the MCS index corresponding to the second transport block, e.g., the MCS index is 1 and the MCS index is 10.

TABLE 4

Bit field in DCI	Information of bit field indication in DCI
		MCS bit field of first transport block	MCS index corresponding to first transport block
MCS bit field of the second transport block	MCS index corresponding to second transport block

TABLE 5

In addition, the DCI is further used to indicate one or more of indication information, reference signal information, and redundancy version information of a time-frequency resource in which the PDSCH carrying the at least two transport blocks is located. The redundancy version information includes one of 0, 1, 2, and 3. The reference signal information includes an antenna port number.

The DCI may be one or a plurality of DCIs. If the number of the DCI is multiple, the DCI is used to indicate at least two MCS indexes corresponding to at least two transport blocks, and it is understood that the DCI is collectively indicated by multiple DCIs. Take two DCIs as an example, wherein part of the indication information in at least two MCS indexes corresponding to at least two transport blocks is transmitted by the first DCI, and the other part of the indication information is transmitted by the second DCI.

Alternatively, if the DCI indicates that one transport block corresponds to one MCS index, the network device or the terminal device may determine the MCS table using any one of the indication manners of the six MCS tables, and further determine the MCS information according to the MCS table and the MCS index determined using any one of the indication manners of the six MCS tables. If the DCI indicates at least two MCS indexes corresponding to at least two transport blocks, step S502 is performed. Because when the DCI indicates only one transport block, one transport block generally does not correspond to multiple MCS tables, any one of the indication manners of the six MCS tables may be used to determine the MCS information corresponding to the transport block, and the information indication method described in the embodiments of the present application is not required to determine at least two MCS tables.

S502, the network equipment indicates at least two MCS tables corresponding to the at least two transport blocks.

Before transmitting a transport block, a network device may receive channel-state information (CSI) reported by a terminal device, where the CSI is used to feed back a TRP and a downlink channel quality of the terminal device. Typically, CSI is carried on PUCCH or PUSCH. The network device may determine MCS information for use by the at least two transport blocks based on channel qualities of the at least two TRPs. The MCS information used by the transport block may be determined by the MCS table and the MCS index. It is to be understood that, if the channel quality of the TRP is better, the MCS table corresponding to the transport block transmitted by the TRP with better channel quality may be the MCS table 1 or the MCS table 2, and then the MCS index corresponding to the transport block is determined in the MCS table 1 or the MCS table 2. The MCS tables corresponding to transport blocks for TRP transmission with better channel quality may be the same MCS table. If the channel quality of the TRP is poor, the MCS table corresponding to the transport block transmitted by the TRP with poor channel quality may be the MCS table 3, and then the MCS index corresponding to the transport block is determined in the MCS table 3.

It should be noted that one TRP may transmit one transport block or may transmit multiple transport blocks, and the number of transport blocks that can be transmitted by each TRP is not limited in the embodiment of the present application. For example, each of the two TRPs may transmit one transport block, the transport blocks transmitted by the two TRPs are different, or each of the two TRPs may transmit two identical transport blocks. The channel quality of the TRP may be evaluated based on the path loss value between the terminal device and the network device.

Alternatively, the network device may also evaluate the channel quality of the TRP based on the physical geographical location between the terminal device and the TRP. For example, the channel quality is better for a short distance between the TRP and the terminal device, and the channel quality is worse for a long distance between the TRP and the terminal device. Configuring an MCS table 1 or an MCS table 2 for a transport block transmitted to a terminal device closer to the TRP; the MCS table 3 is configured for transport blocks transmitted to terminal devices that are farther away from the TRP.

Wherein each of the at least two transport blocks corresponds to one of the at least two MCS tables. It is to be understood that the number of transport blocks may be greater than or equal to the number of MCS tables. When the number of the transport blocks is equal to the number of the MCS tables, each transport block corresponds to a different MCS table. When the number of transport blocks is greater than the number of MCS tables, there are at least two transport blocks corresponding to the same MCS table.

An implementation manner of indicating at least two MCS tables corresponding to at least two transport blocks by the network device is described in detail below.

In a first implementation, at least two MCS tables corresponding to at least two transport blocks may be indicated according to higher layer signaling.

Higher layer signaling may refer to signaling sent through a higher layer protocol layer. The higher layer protocol layer is at least one protocol layer of each protocol layer above the physical layer. The higher layer protocol layer may specifically be at least one of the following protocol layers: a Medium Access Control (MAC) layer, a Radio Link Control (RLC) layer, a Packet Data Convergence Protocol (PDCP) layer, a Radio Resource Control (RRC) layer, and a non-access stratum (NAS) layer. Similarly, signaling sent by the physical layer may refer to physical layer signaling. Physical layer signaling may also be referred to as dynamic signaling. The physical layer signaling may be control information carried in the DCI, for example, indication information such as MCS index indicated by the DCI.

Assume that two MCS tables corresponding to two transport blocks are determined according to higher layer signaling. Illustratively, the first transport block is transport block 1 or codeword 0 and the second transport block is transport block 2 or codeword 1. The network device may indicate, through the high layer signaling, that the MCS table corresponding to the first transport block is the first MCS table, and may indicate, through the high layer signaling, that the MCS table corresponding to the second transport block is the second MCS table. Or, the first transport block is transport block 2 or codeword 1, and the second transport block is transport block 1 or codeword 0. For convenience of description, in the embodiment of the present application, the first MCS table may be the MCS table 1 shown in table 1 above. The second MCS table may be the MCS table 2 shown in table 2 above. The third MCS table may be the MCS table 3 shown in table 3 above.

In addition, the higher layer signaling may be configured for the serving cell, i.e., different serving cells may adopt different transmission strategies. For example, for a first serving cell, each transport block corresponds to a transmission policy of an MCS table; and for the second serving cell, according to the transmission strategy that the two transmission blocks correspond to the same MCS table. Thus, the network device can decide on which serving cell to use a plurality of MCS tables and on which serving cell to use one MCS table according to the magnitude of the channel difference of a plurality of TRPs. Similarly, the high layer signaling may also be for a part of bandwidth, and the implementation manner is similar to that of the serving cell, which is not described herein again in this embodiment of the present application.

Alternatively, the higher layer signaling may also be configured for HARQ process numbers, i.e. different HARQ process numbers may adopt different transmission strategies. The HARQ process number is typically signaled in the DCI or determined according to predefined rules. For example, each transport block corresponding to the first HARQ process number corresponds to a transmission policy of an MCS table, respectively; and the transmission block corresponding to the second HARQ process number corresponds to the transmission strategy of the same MCS table. Therefore, the network equipment flexibly determines the used HARQ process number according to the conditions of a plurality of TRP channels, and further flexibly determines whether a plurality of MCS tables are used. And the terminal equipment in the same service cell or part of bandwidth is switched to the transmission strategy under different services.

Alternatively, the higher layer signaling may also be configured for DCI, i.e., different DCIs may employ different transmission strategies. Different DCIs may refer to different DCI formats. For example, the DCI format may refer to DCI format 1_0 and DCI format 1_ 1. The DCI format may be RNTI of different scrambled DCIs, or the search spaces in which the DCIs are located may be different. Exemplarily, the transport blocks corresponding to the first DCI format respectively correspond to the transmission strategies of one MCS table; and the transmission block corresponding to the second DCI format corresponds to the transmission strategy of the same MCS table. Thus, the network device may also use the DCI to determine a transmission policy for the MCS table corresponding to the transport block. And the terminal equipment in the same service cell or part of bandwidth is switched to the transmission strategy under different services.

Thus, using higher layer signaling configuration techniques has the benefits of: the modification to the protocol is less, and at least two MCS tables indicating the correspondence of at least two transport blocks can be simply implemented.

In a second implementation, at least two MCS tables corresponding to at least two transport blocks may be indicated according to a bit field in the DCI.

Illustratively, at least two MCS tables corresponding to at least two transport blocks are indicated according to a bit status of a first bit field in the DCI. The first bit field includes N bits, which may be a transport block number of at least two transport blocks. Of course, the number N of bits included in the first bit field may also be predefined, for example, N is 2, or N is 3, and the specific number of N is not limited in the embodiment of the present application. It is understood that at least two MCS tables corresponding to at least two transport blocks are jointly indicated by a bit state of N bits included in a first bit field in DCI.

Assume that the first bit field in the DCI indicates two MCS tables for two transport blocks. If the number of bits N included in the first bit field is the number of transport blocks of at least two transport blocks. The bit states of the first bit field may include "00", "01", "10", and "11". The correspondence between the bit state of the first bit field and the information indicated by the first bit field is shown in tables 6 to 9.

TABLE 6

TABLE 7

TABLE 8

TABLE 9

It should be noted that the correspondence between the bit state of the first bit field and the information indicated by the first bit field shown in tables 6 to 9 is only an illustrative example, and the correspondence between the bit state of the first bit field and the information indicated by the first bit field may be other correspondence in practical application, which is not limited in the embodiment of the present application. For example, "00" in table 6 indicates that the first transport block corresponds to the first MCS table and the second transport block corresponds to the second MCS table, "01" indicates that the first transport block corresponds to the second MCS table and the second transport block corresponds to the first MCS table, "10" indicates that the first transport block corresponds to the second MCS table and the second transport block corresponds to the second MCS table, and "11" indicates that the first transport block corresponds to the first MCS table and the second transport block corresponds to the first MCS table.

If the number of bits N included in the first bit field is predefined. When N is 2, the correspondence relationship between the bit state of the first bit field and the information indicated by the first bit field can be referred to tables 6 to 9. When N is 3, the correspondence between the bit state of the first bit field and the information indicated by the first bit field is shown in table 10. The bit states of the first bit field may include "000", "001", "010", "011", "100", "101", "110", and "111".

Watch 10

The first MCS table in tables 6 to 10 may be MCS table 1 shown in table 1. The second MCS table may be MCS table 2 shown in table 2. The third MCS table may be the MCS table 3 shown in table 3 above.

Optionally, at least two MCS tables corresponding to at least two transport blocks may also be determined according to bit states of at least two second bit fields in the DCI. Each of the at least two second bit fields is 1bit, and the number of the second bit fields is the same as the number of the transport blocks of the at least two transport blocks. Alternatively, the number of the second bit fields may be less than or equal to the number of the transport blocks, and then at least two transport blocks correspond to the same MCS table.

It is assumed that two MCS tables corresponding to two transport blocks are indicated using two second bit fields in DCI. The bit state of the second bit field may include "0" and "1". The correspondence relationship between the bit state of the second bit field and the information indicated by the second bit field is shown in tables 11 to 12.

TABLE 11

Bit state of first and second bit field	Information indicated by the first and second bit fields
		0	The first transport block corresponds to a first MCS table
1	The first transport block corresponds to the second MCS table or the third MCS table

TABLE 12

Second one secondBit state of bit field	Information indicated by the second bit field
		0	The second transport block corresponds to the first MCS table
1	The second transport block corresponds to the second MCS table or the third MCS table

Further, when the higher layer signaling configuration is different, the information corresponding to the state of the same bit field may also be different. For example, in the case where the higher layer signaling (MCS-table) configuration qam64LowSE (e.g., MCS table 3) or qam256 (e.g., MCS table 2), the information indicated by the bit field is different. For another example, when qam64LowSE is configured or qam64LowSE is not configured in the higher layer signaling (mcs-table), the information indicated by the bit field is different. As shown in table 13, when qam64LowSE (e.g., MCS table 3) is configured by higher layer signaling (MCS-table), the correspondence between the bit state of the first bit field and the information indicated by the first bit field may be the correspondence shown in table 6 or table 7.

Watch 13

It is to be understood that when the higher layer signaling is not configured with qam64LowSE nor qam256, the first bit field may not need the indication information, i.e. the first bit field may not exist. Of course, other bit numbers or other corresponding relations between bit states and indication information may be used, and the embodiment of the present application is not limited.

Optionally, the indication information corresponding to the partial bit state may be predefined, and the indication information corresponding to the partial bit state may be configured according to a higher layer signaling. For example, the bit state of a first bit in the first bit field may be predefined, and the bit state of a second bit in the first bit field may be configured according to higher layer signaling. Exemplary, as shown in tables 14 to 15.

TABLE 14

Watch 15

It should be noted that the corresponding relationship between the bit state and the indication information is predefined.

Compared with at least two MCS tables corresponding to at least two transmission blocks indicated by high-level signaling, different MCS tables can be dynamically indicated according to the explicit indication mode of the bit field in the DCI, the dynamic setting can be realized along with the rapid change of the channel quality, and the system efficiency can be effectively improved.

In a third implementation manner, at least two MCS tables corresponding to at least two transport blocks may be indicated according to the first information. The first information includes at least one of: RNTI for scrambling DCI, search space where DCI is located, or format of DCI.

Wherein the search space includes a Common Search Space (CSS) or a User Specific Search Space (USSS). The RNTI comprises system information RNTI (SI-RNTI), temporary cell RNTI (TC-RNTI), paging RNTI (paging-RNTI, P-RNTI), cell RNTI (C-RNTI), configuration scheduling RNTI (CS-RNTI) and modulation and coding mode cell RNTI (MCS-C-RNTI).

A set of candidate PDCCHs to which the terminal device monitors may be defined as a PDCCH search space set. The search space set (search space set) may be a Common Search Space Set (CSSS) or a user-specific search space set (UE-SSS). Each PDCCH may scramble the CRC of the PDCCH using the RNTI, which may also be used by the terminal device to distinguish between different PDCCH channels. One user may monitor candidate PDCCHs in one or more of the following sets of search spaces.

Type 0-candidate PDCCHs in the PDCCH common search space set are configured by higher layer signaling (e.g., searchspacezero), and RNTI of the scrambled PDCCH is SI-RNTI.

Type 0A-the candidate PDCCH in the PDCCH common search space set is configured by higher layer signaling (e.g., search-osi), and RNTI of the scrambled PDCCH is SI-RNTI.

Type 1-the candidate PDCCH in the PDCCH common search space set is configured by higher layer signaling (e.g., RA-search space), and the RNTI of the scrambled PDCCH is RA-RNTI or TC-RNT.

Type 2-the candidate PDCCH in the PDCCH common search space set is configured by higher layer signaling (e.g., pagengsearchspace), and the RNTI of the scrambled PDCCH is P-RNTI.

The Type3-PDCCH candidate in the PDCCH common search space set is configured by higher layer signaling (such as searchspace), and RNTI of the scrambled PDCCH is C-RNTI, CS-RNTI or other RNTI scrambles such as MCS-C-RNTI.

The candidate PDCCH in the user-specific search space set is configured by higher layer signaling (e.g., searchspace), and the RNTI of the scrambled PDCCH is a C-RNTI, a CS-RNTI or an MCS-C-RNTI.

Illustratively, it is assumed that two MCS tables corresponding to two transport blocks are indicated according to the first information. And under the condition that the RNTI of the scrambled DCI is the first RNTI and the search space where the DCI is located is the first search space, indicating that the MCS table corresponding to the first transmission block is the first MCS table and the MCS table corresponding to the second transmission block is the second MCS table. The first RNTI may be a first RNTI _1 or a first RNTI _2, where the first RNTI _1 and the first RNTI _2 may be MCS-C-RNTI and C-RNTI, or other RNTIs may be adopted, and as long as the first RNTI _1 and the first RNTI _2 are different, they are both the protection scope of the embodiment of the present application. The first search space may be a common search space or a user-specific search space. In the embodiment of the present application, the first MCS table and the second MCS table may be any two of the MCS table 1, the MCS table 2, and the MCS table 3, or may be other MCS tables, and the embodiment of the present application is not limited as long as the first MCS table and the second MCS table are different and are the protection scope of the embodiment of the present application. For example, the correspondence relationship between the first RNTI, the first search space, and the indication information is shown in table 16:

TABLE 16

Table 17 shows another corresponding relationship between the first RNTI and the first search space and the indication information, where it needs to be specifically stated that the tables corresponding to the CSS are the same, and the tables corresponding to the USS are different, that is, the terminal device determines whether at least two MCS tables corresponding to at least two transmissions are the same according to the search space where the DCI is located.

TABLE 17

Of course, the first RNTI, the first search space, and the indication information may also be other corresponding relationships, for example, the indication information corresponding to the MCS-C-RNTI and the CSS may be that the first transport block corresponds to the first MCS table and the second transport block corresponds to the second MCS table, which is not described herein again in this embodiment of the present application. Further, when the higher layer signaling configuration is different, the information corresponding to the state of the same bit field may also be different. For example, in the case where the higher layer signaling (MCS-table) configuration qam64LowSE (e.g., MCS table 3) or qam256 (e.g., MCS table 2), the information indicated by the bit field is different. For another example, when qam64LowSE is configured or qam64LowSE is not configured in the higher layer signaling (mcs-table), the information indicated by the bit field is different. As shown in table 18.

Watch 18

Exemplarily, the DCI formats include DCI format 1_0 and DCI format 1_ 1. For example, when the format of the DCI is the first DCI format, the information indication method according to the embodiment of the present application may indicate at least two MCS tables corresponding to at least two transport blocks, and determine multiple MCS tables. When the format of the DCI is a second DCI format, the same MCS table corresponding to at least two transport blocks may be indicated. In this embodiment of the present application, the specific corresponding manner may be predefined or configured by high layer signaling, and the indicated information may be predefined or configured by high layer signaling. The first DCI format may be DCI format 1_1, and the second DCI format may be DCI format 1_ 0. Alternatively, the first DCI format may be DCI format 1_0, and the second DCI format may be DCI format 1_ 1. As shown in table 19.

Watch 19

How the network device indicates at least two MCS tables corresponding to at least two transport blocks is explained in detail above by three different realizations. Of course, three different realizations may also be combined to use at least two MCS tables indicating at least two transport block correspondences.

In the first mode, the corresponding relationship between the bit state and the indication information is configured by high-level signaling. Or the partial corresponding relation is configured for high-level signaling, and the partial corresponding relation is predefined. It can be understood that the corresponding relationship between the transport block and the MCS table may be preconfigured or set by a higher layer signaling, and the corresponding relationship configured by the higher layer signaling may be set in different fields of one higher layer signaling or may be set by different higher layer signaling. As shown in table 20, the bit status of the first bit field and the information indicated by the first bit field are configured by high layer signaling. The first correspondence may indicate that the first transport block corresponds to a first MCS table and the second transport block corresponds to the first MCS table; the second correspondence may indicate that the first transport block corresponds to the first MCS table and the second transport block corresponds to the second MCS table; the third correspondence may indicate that the first transport block corresponds to the second MCS table, and the second transport block corresponds to the first MCS table; the fourth correspondence may indicate that the first transport block corresponds to the second MCS table, and the second transport block corresponds to the second MCS table, which is not limited in this embodiment of the application.

Watch 20

Bit state of the first bit field	Information indicated by the first bit field
		00	First corresponding relation
01	Second correspondence relationship
		10	Third corresponding relation
11	Fourth corresponding relation

In the second mode, at least two MCS tables corresponding to at least two transport blocks are jointly indicated according to the bit field and the first information in the DCI.

Exemplary, as shown in table 21. Assuming that the first information is a search space in which the DCI is located, the third bit field includes one bit. For the explanation of the corresponding relationship in the indicated information, reference may be made to the description in table 20, and the corresponding relationship may also be all defined in advance, which is not limited in the embodiment of the present application.

TABLE 21

First search space	Third bit field (1bit)	Information for indication
			CSS	0	First corresponding relation
USS	0	Second correspondence relationship
			CSS	1	Third corresponding relation
USS	1	Fourth corresponding relation

As shown in table 22. It is assumed that the first information is an RNTI of the scrambled DCI, and the third bit field includes one bit. And the RNTI of the scrambled DCI is a first RNTI. For the explanation of the corresponding relationship in the indicated information, reference may be made to the description in table 20, and the corresponding relationship may also be all defined in advance, which is not limited in the embodiment of the present application.

TABLE 22

First RNTI	Third bit field (1bit)	Information for indication
			First RNTI _1	0	First corresponding relation
First RNTI _2	0	Second correspondence relationship
			First RNTI _1	1	Third corresponding relation
First RNTI _2	1	Fourth corresponding relation

As shown in table 23. It is assumed that the first information includes a search space in which the DCI is located and an RNTI which scrambles the DCI, and the third bit field includes one bit. The first information comprises that the search space is a first search space, and the RNTI of the scrambled DCI is a first RNTI. For the explanation of the corresponding relationship in the indicated information, reference may be made to the description in table 20, and the corresponding relationship may also be all defined in advance, which is not limited in the embodiment of the present application. Wherein the fifth correspondence may indicate that the first transport block corresponds to the first MCS table, and the second transport block corresponds to the third MCS table; the sixth correspondence may indicate that the first transport block corresponds to the third MCS table and the second transport block corresponds to the first MCS table; the seventh correspondence may indicate that the first transport block corresponds to the second MCS table, and the second transport block corresponds to the third MCS table; the eighth correspondence may indicate that the first transport block corresponds to the third MCS table, and the second transport block corresponds to the second MCS table, which is not limited in this embodiment of the application. For example, the first RNTI _2 is an MCS-C-RNTI.

TABLE 23

As shown in table 24. Assuming that the first information is a search space where the DCI is located and an RNTI where the DCI is scrambled, the third bit field includes one bit. The first information comprises that the search space is a first search space, and the RNTI of the scrambled DCI is a first RNTI. For the explanation of the corresponding relationship in the indicated information, reference may be made to the description in table 20, and the corresponding relationship may also be all defined in advance, which is not limited in the embodiment of the present application. Wherein the fifth correspondence may indicate that the first transport block corresponds to the first MCS table, and the second transport block corresponds to the third MCS table; the sixth correspondence may indicate that the first transport block corresponds to the third MCS table and the second transport block corresponds to the first MCS table; the seventh correspondence may indicate that the first transport block corresponds to the second MCS table, and the second transport block corresponds to the third MCS table; the eighth correspondence may indicate that the first transport block corresponds to the third MCS table, and the second transport block corresponds to the second MCS table, which is not limited in this embodiment of the application.

Watch 24

First RNTI	First search space	Third bit field (1bit)	Information for indication
				First RNTI _1	CSS	0	First corresponding relation
First RNTI _1	CSS	1	Second correspondence relationship
				First RNTI _1	USS	0	Third corresponding relation
First RNTI _1	USS	1	Fourth corresponding relation
				First RNTI _2	CSS	0	Fifth corresponding relation
First RNTI _2	CSS	1	Sixth corresponding relation
				First RNTI _2	USS	0	Seventh corresponding relation
First RNTI _2	USS	1	Eighth corresponding relation

As shown in table 25. Assuming that the first information is a DCI format, the third bit field includes one bit. For the explanation of the corresponding relationship in the indicated information, reference may be made to the description in table 20, and the corresponding relationship may also be all defined in advance, which is not limited in the embodiment of the present application.

TABLE 25

DCI format	Third bit field (1bit)	Information for indication
			First DCI Format	0	First corresponding relation
First DCI Format	1	Second correspondence relationship
			Second DCI Format	0	Third corresponding relation
Second DCI Format	1	Fourth corresponding relation

As shown in table 26. Assuming that the first information is a DCI format of the DCI and a search space in which the DCI is located, the third bit field includes one bit. The first information includes that the search space is a first search space. For the explanation of the corresponding relationship in the indicated information, reference may be made to the description in table 20, and the corresponding relationship may also be all defined in advance, which is not limited in the embodiment of the present application.

Watch 26

DCI format	First search space	Third bit field (1bit)	Information for indication
				First DCI Format	CSS	0	First corresponding relation
First DCI Format	CSS	1	Second correspondence relationship
				First DCI Format	USS	0	Third corresponding relation
First DCI Format	USS	1	Fourth corresponding relation
				Second DCI Format	CSS	0	Fifth corresponding relation
Second DCI Format	CSS	1	Sixth corresponding relation
				Second DCI Format	USS	0	Seventh corresponding relation
Second DCI Format	USS	1	Eighth corresponding relation

As shown in table 27. Assuming that the first information is a DCI format, an RNTI scrambling DCI, and a search space in which the DCI is located, the third bit field includes one bit. The first information comprises that the search space is a first search space, and the RNTI of the scrambled DCI is a first RNTI. For the explanation of the corresponding relationship in the indicated information, reference may be made to the description in table 20, and the corresponding relationship may also be all defined in advance, which is not limited in the embodiment of the present application.

Watch 27

DCI format	First RNTI	First search space	Information for indication
				First DCI Format	First RNTI _1	CSS	First corresponding relation
First DCI Format	First RNTI _1	CSS	Second correspondence relationship
				First DCI Format	First RNTI _1	USS	Third corresponding relation
First DCI Format	First RNTI _1	USS	Fourth corresponding relation
				Second DCI Format	First RNTI _2	CSS	Fifth corresponding relation
Second DCI Format	First RNTI _2	CSS	Sixth corresponding relation
				Second DCI Format	First RNTI _2	USS	Seventh corresponding relation
Second DCI Format	First RNTI _2	USS	Eighth corresponding relation

The correspondence between the bit states and the information for indication shown in tables 4 to 27 is only illustrative, and other correspondence may be used in actual applications. For example, the correspondence of the bit state and the information for indication in each table may be exchanged with each other. The bit states in the tables may be represented in combination with the correspondence between the bit states and the information for indication. The contents of each table from table 4 to table 27 may be all or part of the table, and all of the tables are within the scope of the present application as long as the mapping relationship is embodied.

Taking tables 6 and 7 as an example, for example, the contents of the first and second rows in table 6, and the contents of the third and fourth rows in table 7 may be used in combination.

Alternatively, as shown in table 28. Assuming that the first information is a DCI format, an RNTI scrambling DCI, and a search space in which the DCI is located, the third bit field includes one bit. The first information comprises that the search space is a first search space, and the RNTI of the scrambled DCI is a first RNTI. For the explanation of the corresponding relationship in the indicated information, reference may be made to the description in table 20, and the corresponding relationship may also be all defined in advance, which is not limited in the embodiment of the present application.

Watch 28

DCI format	First RNTI	First search space	Third bit field (1bit)	Information for indication
					First DCI Format	First RNTI _1	CSS	0	First corresponding relation
First DCI Format	First RNTI _1	CSS	1	Second correspondence relationship
					First DCI Format	First RNTI _1	USS	0	Third corresponding relation
First DCI Format	First RNTI _1	USS	1	Fourth corresponding relation
					First DCI Format	First RNTI _2	CSS	0	Fifth corresponding relation
First DCI Format	First RNTI _2	CSS	1	Sixth corresponding relation
					First DCI Format	First RNTI _2	USS	0	Seventh corresponding relation
First DCI Format	First RNTI _2	USS	1	Eighth corresponding relation
					Second DCI Format	First RNTI _1	CSS	0	Ninth corresponding relation
Second DCI Format	First RNTI _1	CSS	1	Tenth corresponding relation
					Second DCI Format	First RNTI _1	USS	0	Eleventh corresponding relation
Second DCI Format	First RNTI _1	USS	1	Twelfth corresponding relation
					Second DCI Format	First RNTI _2	CSS	0	Thirteenth correspondence relationship
Second DCI Format	First RNTI _2	CSS	1	Fourteenth corresponding relation
					Second DCI Format	First RNTI _2	USS	0	Fifteenth corresponding relation
Second DCI Format	First RNTI _2	USS	1	Sixteenth correspondence relationship

Of course, fewer rows may be included in table 28, and in particular, table 28 may retain only the first row, or table 28 may retain only the second row, and table 28 may retain only the third row, or table 28 may retain only the fourth row, or table 28 may retain only the contents of the first row and the second row, or table 28 may retain only the contents of the first row and the third row, or table 28 may retain only the contents of the first row and the fourth row, table 28 may retain only the contents of the second row and the third row, or table 28 may retain only the contents of the second row and the fourth row, or table 28 may retain only the contents of the third row and the fourth row, or table 28 may retain only the contents of the first row, the second row and the fourth row, or table 28 may retain only the contents of the second row, the third row and the fourth row, and so on, and is not particularly limited herein. For economy, the contents of each of tables 4-28 are not illustrated.

In addition, the above tables 4 to 28 may include more rows. For example, the first DCI format _1, the first RNTI _1, the CSS, and 1 correspond to a fifth mapping relationship, etc., and are not illustrated here.

It should be noted that, the order of the steps of the information indication method provided in the embodiment of the present application may be appropriately adjusted, and the steps may also be increased or decreased according to the situation, for example, the order between S501 and S502 may be interchanged, that is, before the network device sends DCI, at least two MCS tables corresponding to at least two transport blocks are indicated first. Any method that can be easily conceived by those skilled in the art within the technical scope of the present disclosure is covered by the protection scope of the present disclosure, and thus, the detailed description thereof is omitted.

S503, the network device sends the at least two transport blocks to the terminal device according to the at least two MCS indexes corresponding to the at least two transport blocks and the at least two MCS tables corresponding to the at least two transport blocks.

S504, the terminal device receives the DCI sent by the network device.

Illustratively, the DCI is configured to indicate the at least two MCS indices corresponding to the at least two transport blocks, where each of the at least two transport blocks corresponds to one of the at least two MCS indices. For the specific explanation of the DCI, reference may be made to the detailed description of S501, and details are not repeated herein in this embodiment of the application.

S505, the terminal device obtains the at least two MCS tables corresponding to the at least two transport blocks.

Wherein each of the at least two transport blocks corresponds to one of the at least two MCS tables. The manner in which the terminal device obtains the at least two MCS tables corresponding to the at least two transport blocks may refer to an indication manner in which the network device indicates the at least two MCS tables corresponding to the at least two transport blocks, and for specific explanation, refer to detailed description of S502, which is not described herein again in this embodiment of the present application.

It should be noted that, the order of the steps of the information indication method provided in the embodiment of the present application may be appropriately adjusted, and the steps may also be increased or decreased according to the situation, for example, the order between S504 and S505 may be interchanged, that is, before the terminal device receives DCI, at least two MCS tables corresponding to at least two transport blocks are obtained first. Any method that can be easily conceived by those skilled in the art within the technical scope of the present disclosure is covered by the protection scope of the present disclosure, and thus, the detailed description thereof is omitted.

S506, the terminal equipment receives the at least two transport blocks according to the at least two MCS indexes corresponding to the at least two transport blocks and the at least two MCS tables corresponding to the at least two transport blocks.

Here, the receiving may refer to both receiving the at least two transport blocks from the network device and decoding the at least two transport blocks according to the at least two MCS indexes corresponding to the at least two transport blocks and the at least two MCS tables corresponding to the at least two transport blocks to obtain data information carried by the at least two transport blocks.

For example, when the terminal device receives two transport blocks according to two MCS indexes corresponding to the two transport blocks and two MCS tables corresponding to the two transport blocks, the terminal device may determine first MCS information according to a first MCS index corresponding to the first transport block and the first MCS table, and then decode the first transport block according to the first MCS information to obtain data information carried by the first transport block. The second MCS information may be determined according to a second MCS index and a second MCS table corresponding to the second transport block, and then the second transport block is decoded according to the second MCS information to obtain data information carried by the second transport block.

The MCS information includes at least one of a modulation scheme, a coding rate, and a spectral efficiency. Wherein the modulation mode comprises at least one of the following: binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), 16 Quadrature Amplitude Modulation (QAM), 64QAM, and 256 QAM. The modulation mode is generally represented by a modulation order, where a modulation order 1 corresponds to pi/2BPSK, a modulation order 2 corresponds to QPSK, a modulation order 4 corresponds to 16QAM, a modulation order 6 corresponds to 64QAM, and a modulation order 8 corresponds to 256 QAM. Values of the coding rate 1024 include values equal to or greater than 30 and equal to or less than 948.

Optionally, the at least two transport blocks partially overlap or completely overlap on the time-frequency resource. Optionally, the at least two transmissions correspond to at least two different codewords. Optionally, the at least two transmissions correspond to at least two different antenna port numbers. Optionally, the at least two transport blocks correspond to at least the same HARQ process number.

Further, before the network device sends DCI, that is, before S501, the terminal device may report that the terminal device has the capability of receiving at least two transport blocks corresponding to at least two MCS tables, respectively; and/or the network equipment configuration indicates that the terminal equipment can receive at least two transport blocks respectively corresponding to the at least two MCS tables. As shown in fig. 6, the embodiment of the present application may further include the following steps:

s601, the network equipment sends first configuration information to the terminal equipment.

The first configuration information is used for configuring at least two transport blocks which indicate that the terminal equipment can receive at least two MCS tables respectively corresponding to the at least two MCS tables. Optionally, the first configuration information is used to configure at least two transport blocks that indicate that the terminal device can simultaneously receive at least two MCS tables respectively. Simultaneous reception here means that at least two transport blocks partially or completely overlap on time-frequency resources and/or that the at least two transmissions correspond to at least two different code words and/or that the at least two transmissions correspond to at least two different antenna port numbers and/or that the at least two transmissions correspond to the same HARQ process number.

S602, the terminal device receives the first configuration information sent by the network device.

Optionally, the network device may further send, to the terminal device, second configuration information, where the second configuration information is used to configure at least two transport blocks that indicate that the terminal device does not have a capability of receiving at least two MCS tables respectively. Optionally, the second configuration information is used to configure at least two transport blocks corresponding to at least two MCS tables that can be received simultaneously by the terminal device. It should be understood that the second configuration information may also be configured to indicate that the terminal device has at least two transport blocks capable of simultaneously receiving at least two transport blocks corresponding to the same MCS table.

S603, the terminal device sends first notification information to the network device.

The first notification information is used for notifying the network device that the terminal device has the capability of receiving at least two transport blocks respectively corresponding to at least two MCS tables. Optionally, the first notification information is used to notify the network device that the terminal device has a capability of simultaneously receiving at least two transport blocks respectively corresponding to at least two MCS tables.

S604, the network device receives the first notification information sent by the terminal device.

Optionally, the terminal device may further send second notification information, where the second notification information is used to notify a network device that the terminal device does not have a capability of receiving at least two transport blocks respectively corresponding to at least two MCS tables. Optionally, the second notification information is used to notify the network device that the terminal device does not have the capability of simultaneously receiving at least two transport blocks corresponding to at least two MCS tables, respectively. The second notification information is used for notifying the network device that the terminal device only has the capability of simultaneously receiving at least two transport blocks corresponding to the same MCS table. The embodiments of the present application do not limit this.

When the terminal device reports that the terminal device does not have the capability of simultaneously receiving at least two transport blocks corresponding to at least two MCS tables and/or the network device configures that the terminal device cannot simultaneously receive at least two transport blocks corresponding to at least two MCS tables, the terminal device may determine the same MCS table corresponding to at least two transport blocks according to any one of the indication modes of the six MCS tables.

Before the network device indicates at least two MCS tables corresponding to the at least two transport blocks, the method further comprises:

s605, the network equipment determines a first mode according to the format of the DCI and/or the RNTI of the scrambled DCI.

Illustratively, the first mode is that at least two transport blocks correspond to one MCS table, respectively. The network device may also determine a second mode according to the DCI format and/or the DCI-scrambled RNTI, where the second mode is that at least two transport blocks correspond to the same MCS table.

Meanwhile, before the terminal device obtains at least two MCS tables corresponding to at least two transport blocks, the method may further include: s606, the terminal equipment determines the first mode according to the format of the DCI and/or the RNTI of the scrambled DCI.

For the explanation of the format of the DCI and the RNTI of the scrambled DCI, reference may be made to the explanations in the third implementation manner, and details are not described herein again in the embodiments of the present application.

A brief description will be given below of a scenario in which the information indication method according to the embodiments of the present application can be used to indicate at least two MCS tables corresponding to at least two transport blocks.

Scenario one, the DCI indicates that at least two transport blocks use different reference signal information. In one possible design, at least two transport blocks use different reference signal information. For example, different antenna ports, time-frequency resources occupied by different reference signals, or scrambling codes scrambled by different reference signals are equivalent to notifying the terminal device that the two transmission blocks are from different TRPs, in this case, the information indication method described in the embodiment of the present application may be used to determine the correspondence between the MCS table and the transmission blocks, and determine a plurality of MCS tables. It can be understood that when at least two transport blocks use different reference signal information, then the terminal device determines the MCS tables corresponding to the at least two transport blocks. When at least two transport blocks use the same reference signal information, the terminal device may determine the same MCS table corresponding to at least two transport blocks according to any one of the indication manners of the six MCS tables.

Further, optionally, when at least two transport blocks correspond to the same HARQ process number and at least two transport blocks use different reference signal information, the information indication method described in the embodiment of the present application may be used to determine the correspondence between the MCS table and the transport blocks, and determine multiple MCS tables. When at least two transport blocks use the same reference signal information or at least two transport blocks correspond to different HARQ processes, the same MCS table corresponding to at least two transport blocks may be determined according to any one of the indication manners of the six MCS tables.

In scenario two, when the time-frequency resources in which at least two transport blocks indicated by the DCI are located overlap.

Specifically, when resources in which transport blocks indicated by DCI are located partially overlap or completely overlap in a time domain, the information indication method described in the embodiment of the present application may be used to determine a corresponding relationship between an MCS table and the transport blocks, and determine a plurality of MCS tables. When the resources in which the transport blocks indicated by the DCI are located do not overlap in the time domain, the same MCS table corresponding to at least two transport blocks may be determined according to any one of the indication manners of the six MCS tables.

Specifically, when the resources in which the transport blocks indicated by the DCI are located partially overlap or completely overlap in the frequency domain, the information indication method described in the embodiment of the present application may be used to determine the correspondence between the MCS tables and the transport blocks, and determine a plurality of MCS tables. When the resources of the transport blocks indicated by the DCI do not overlap in the frequency domain, the same MCS table corresponding to at least two transport blocks may be determined according to any one of the indication manners of the six MCS tables. The resource where the transport block indicated by the DCI is located may overlap in the frequency domain, where the frequency domain resources where the at least two transport blocks are located may have overlapping REs or PRBs in the same downlink bandwidth portion and/or in the same serving cell.

Specifically, when resources in which a transport block indicated by DCI is located partially overlap or completely overlap in a time-frequency domain, the information indication method described in the embodiment of the present application may be used to determine a corresponding relationship between an MCS table and the transport block, and determine a plurality of MCS tables. When the resources in which the transport blocks indicated by the DCI are located do not overlap in the time-frequency domain, the same MCS table corresponding to at least two transport blocks may be determined according to any one of the indication manners of the six MCS tables.

Scenario three, when at least two transport blocks indicated by the DCI correspond to at least two codewords.

When at least two transport blocks indicated by the DCI correspond to at least two codewords, the information indication method described in the embodiment of the present application may be used to determine a corresponding relationship between an MCS table and a transport block, and determine a plurality of MCS tables. When at least two transport blocks indicated by the DCI all correspond to the same codeword, the same MCS table corresponding to the at least two transport blocks may be determined according to any one of the indication manners of the six MCS tables.

It should be noted that, the above has detailed descriptions on the scenarios that can use the information indication method described in the embodiments of the present application to indicate at least two MCS tables corresponding to at least two transport blocks, respectively. Of course, at least two MCS tables indicating at least two transport block correspondences may be used in combination with the three scenarios.

Further, optionally, when at least two transport blocks correspond to the same HARQ process number and time-frequency resources overlap, the information indication method described in the embodiment of the present application may be used to determine the correspondence between the MCS table and the transport blocks, and determine multiple MCS tables. When the resources in which the transport blocks indicated by the DCI are located do not overlap in the time-frequency domain or at least two transport blocks correspond to different HARQ processes, the same MCS table corresponding to at least two transport blocks may be determined according to any one of the indication manners of the six MCS tables.

Further, optionally, when resources in which transport blocks indicated by the DCI are located partially overlap or completely overlap in a time-frequency domain and at least two transport blocks use different reference signal information, the information indication method described in the embodiment of the present application may be used to determine a correspondence between the MCS table and the transport blocks, and determine multiple MCS tables. When the resources in which the transport blocks indicated by the same reference signal information or DCI are used by the at least two transport blocks do not overlap in the time-frequency domain, the same MCS table corresponding to the at least two transport blocks may be determined according to any one of the indication manners of the six MCS tables.

Further, optionally, when resources in which transport blocks indicated by DCI are located partially overlap or completely overlap in a time-frequency domain and at least two transport blocks indicated by DCI correspond to at least two codewords, the information indication method described in this embodiment of the present application may be used to determine a correspondence between an MCS table and the transport blocks, and determine a plurality of MCS tables. When at least two transport blocks indicated by the DCI all correspond to the same codeword or resources where the transport blocks indicated by the DCI are located do not overlap in the time-frequency domain, the same MCS table corresponding to the at least two transport blocks may be determined according to any one of the indication manners of the six MCS tables.

The information indication method provided by the embodiment of the application can enable a transmission block scheduled by one DCI to correspond to two or more MCS tables, thereby improving the utilization rate of system resources under the condition of multi-TRP transmission.

It should be noted that, for the indication manner of the MCS table corresponding to more than three transport blocks, reference may be made to the description of two transport blocks in each embodiment described above, and details of the embodiments of the present application are not described herein again.

Particularly, when the DCI is used to indicate one MCS index corresponding to one transport block and one MCS table corresponding to one transport block, the information indication mode may also be indicated according to the embodiment of the present application. For example, one MCS table corresponding to one transport block is indicated according to higher layer signaling. Or, one MCS table corresponding to one transport block is indicated according to a bit field in the DCI. And indicating an MCS table corresponding to one transport block according to the first information. The first information includes at least one of: RNTI for scrambling DCI, search space where DCI is located, or format of DCI. And the network equipment sends a transmission block to the terminal equipment according to the MCS index corresponding to the transmission block and the MCS table corresponding to the transmission block. After receiving the DCI sent by the network device, the terminal device obtains the MCS table corresponding to the transport block, and receives a transport block according to an MCS index corresponding to the transport block and the MCS table corresponding to the transport block. For a specific implementation manner, reference may be made to the detailed description of each embodiment described above, and the embodiments of the present application are not described herein again.

In the embodiments provided in the present application, the method provided in the embodiments of the present application is introduced from the perspective of the terminal device, the network device, and the interaction between the terminal device and the network device. It is understood that, for each network element, for example, the terminal device and the network device, to implement each function in the method provided in the foregoing embodiments of the present application, the terminal device and the network device include a hardware structure and/or a software module corresponding to executing each function. Those of skill in the art will readily appreciate that the present application is capable of hardware or a combination of hardware and computer software implementing the various illustrative algorithm steps described in connection with the embodiments disclosed herein. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the terminal device and the network device may be divided into the functional modules according to the above method examples, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation.

Fig. 7 shows a possible example of the composition of the information indicating apparatus mentioned above and in the embodiments, where the function modules are divided according to the respective functions, and the information indicating apparatus is capable of executing the steps executed by the network device in any method embodiment of the present application. As shown in fig. 7, the information indicating apparatus is a network device or an information indicating apparatus supporting the network device to implement the method provided in the embodiment, for example, the information indicating apparatus may be a system on a chip. The information indicating apparatus may include: a transmitting unit 701 and a processing unit 702.

A sending unit 701, configured to support the information indicating apparatus to execute the method described in the embodiment of the present application. For example, the sending unit 701 is configured to execute or support the information indicating apparatus to execute S501 and S503 in the information indicating method shown in fig. 5, and S501, S503 and S601 in the information indicating method shown in fig. 6.

A processing unit 702 configured to support the information indicating apparatus to execute S502 in the information indicating method shown in fig. 5, and S502 and S605 in the information indicating method shown in fig. 6.

Further, the information indicating apparatus may further include a receiving unit 703. A receiving unit 703, configured to support the information indicating apparatus to execute S604 in the information indicating method shown in fig. 6.

It should be noted that all relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

The information indicating device provided by the embodiment of the application is used for executing the method of any embodiment, so that the same effects as those of the method of the embodiment can be achieved.

The entity device corresponding to the receiving unit may be a receiver, the entity device corresponding to the sending unit may be a transmitter, and the entity device corresponding to the processing unit may be a processor.

In the case of adopting the functional modules divided corresponding to the respective functions, fig. 8 shows a possible composition example of the information indicating apparatus mentioned above and in the embodiments as a second example, the information indicating apparatus is capable of executing the steps executed by the terminal device in any method embodiment in the method embodiments of the present application. As shown in fig. 8, the information indicating apparatus is a terminal device or an information indicating apparatus supporting the terminal device to implement the method provided in the embodiment, for example, the information indicating apparatus may be a chip system. The information indicating apparatus may include: a receiving unit 801 and a processing unit 802.

A receiving unit 801, configured to support an information indicating apparatus to perform the method described in the embodiment of the present application. For example, the receiving unit 801 is configured to receive data, for example, to support the information indicating apparatus to perform S504 in the information indicating method shown in fig. 5, and S504 and S602 in the information indicating method shown in fig. 6.

A processing unit 802 for executing or supporting the information indicating apparatus to execute S505 and S506 in the information indicating method shown in fig. 5, and S505, S506, and S606 in the information indicating method shown in fig. 6.

Further, the information indication apparatus may further include a sending unit 803. A sending unit 803, configured to support the information indicating apparatus to execute S603 in the information indicating method shown in fig. 6.

Fig. 9 shows a schematic diagram of a possible structure of the network device involved in the above embodiments.

The network device includes a transmitter/receiver 901, a controller/processor 902, and memory 903. The transmitter/receiver 901 is used to support the network device to send and receive information to and from the terminal device in the above embodiments. The controller/processor 902 performs various functions for communicating with terminal devices. In the uplink, uplink signals from the terminal device are received via the antenna, conditioned by the receiver 901, and further processed by the controller/processor 192 to recover the traffic data and signaling information sent by the terminal device. On the downlink, traffic data and signaling messages are processed by a controller/processor 902 and conditioned by a transmitter 901 to generate a downlink signal, which is transmitted via an antenna to terminal devices. Controller/processor 902 may also perform the processes of fig. 5 and 6 involving network devices and/or other processes for the techniques described herein. The memory 903 is used to store program codes and data of the network device.

Fig. 10 shows a simplified schematic diagram of a possible design structure of the terminal device involved in the above-described embodiment. The terminal device includes a transmitter 1001, a receiver 1002, a controller/processor 1003, a memory 1004, and a modem processor 1005.

The transmitter 1001 is configured to transmit an uplink signal, which is transmitted to the network device described in the above embodiments via the antenna. On the downlink, the antenna receives a downlink signal (DCI) transmitted by the network device in the above-described embodiment. The receiver 1002 is configured to receive a downlink signal (DCI) received from an antenna. In modem processor 1005, an encoder 1006 receives traffic data and signaling messages to be transmitted on the uplink and processes the traffic data and signaling messages. A modulator 1007 further processes (e.g., symbol maps and modulates) the coded traffic data and signaling messages and provides output samples. A demodulator 1009 processes (e.g., demodulates) the input samples and provides symbol estimates. A decoder 1008 processes (e.g., decodes) the symbol estimates and provides decoded data and signaling messages that are sent to the terminal device. Encoder 1006, modulator 1007, demodulator 1009, and decoder 1008 may be implemented by a combined modem processor 1005. These elements are processed according to the radio access technology employed by the radio access network.

The controller/processor 1003 controls and manages the operation of the terminal device, and executes the processing performed by the terminal device in the above-described embodiment. For example, the method is used for controlling the terminal device to obtain at least two MCS tables corresponding to at least two transport blocks, where each transport block in the at least two transport blocks corresponds to one MCS table in the at least two MCS tables; receiving at least two transport blocks according to at least two MCS indices corresponding to the at least two transport blocks and at least two MCS tables corresponding to the at least two transport blocks and/or other processes of the techniques described herein. As an example, the controller/processor 1003 is configured to support the terminal device to perform the procedures S505 and S506 in fig. 5, and the procedures S505, S506, and S606 in fig. 6.

In the embodiments of the present application, the processor may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the methods, steps, and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a processor.

In the embodiment of the present application, the memory may be a non-volatile memory, such as a Hard Disk Drive (HDD) or a solid-state drive (SSD), and may also be a volatile memory (e.g., a random-access memory (RAM)). The memory is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such. The memory in the embodiments of the present application may also be circuitry or any other device capable of performing a storage function for storing program instructions and/or data.

Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions.

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

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

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The method provided by the embodiment of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, a network appliance, a terminal, or other programmable apparatus. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., Digital Video Disk (DVD)), or a semiconductor medium (e.g., SSD), among others.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An information indication method, comprising:

receiving Downlink Control Information (DCI), wherein the DCI is used for indicating at least two Modulation Coding Scheme (MCS) indexes corresponding to at least two transport blocks, and each transport block in the at least two transport blocks corresponds to one MCS index in the at least two MCS indexes;

acquiring at least two MCS tables corresponding to the at least two transport blocks, wherein each transport block in the at least two transport blocks corresponds to one MCS table in the at least two MCS tables;

and receiving the at least two transport blocks according to at least two MCS indexes corresponding to the at least two transport blocks and at least two MCS tables corresponding to the at least two transport blocks.

2. The information indication method of claim 1, wherein the obtaining at least two MCS tables corresponding to the at least two transport blocks comprises:

acquiring at least two MCS tables corresponding to the at least two transmission blocks according to a high-level signaling; and/or

And acquiring at least two MCS tables corresponding to the at least two transport blocks according to the bit field in the DCI.

3. The information indication method of claim 2, wherein the obtaining at least two MCS tables corresponding to the at least two transport blocks according to the bit field in the DCI comprises:

acquiring at least two MCS tables corresponding to the at least two transport blocks according to a bit state of a first bit field in the DCI, wherein the first bit field comprises N bits, and N is the number of the transport blocks of the at least two transport blocks, or 2, or 3; alternatively, the first and second electrodes may be,

and acquiring at least two MCS tables corresponding to the at least two transport blocks according to bit states of at least two second bit fields in the DCI, wherein each second bit field in the at least two second bit fields is 1bit, and the number of the second bit fields is the same as the number of the transport blocks of the at least two transport blocks.

4. The information indication method according to claim 2 or 3, wherein said obtaining at least two MCS tables corresponding to the at least two transport blocks comprises:

acquiring at least two MCS tables corresponding to the at least two transport blocks according to first information, wherein the first information comprises at least one of the following: and scrambling the Radio Network Temporary Identifier (RNTI) of the DCI, the search space where the DCI is located or the format of the DCI.

5. The information indication method according to any of claims 1-4, wherein before said receiving downlink control information, DCI, said method further comprises:

and sending first notification information, wherein the first notification information is used for notifying the network equipment that the terminal equipment has the capability of receiving at least two transport blocks respectively corresponding to at least two MCS tables.

6. The information indication method according to any of claims 1-5, wherein before said receiving downlink control information, DCI, said method further comprises:

receiving first configuration information, wherein the first configuration information is used for configuring at least two transport blocks which indicate that the terminal equipment can receive at least two MCS tables respectively.

7. The information indication method according to any of claims 1-6, wherein before said obtaining at least two MCS tables corresponding to said at least two transport blocks, said method further comprises:

and determining a first mode according to the format of the DCI, wherein the first mode is that the at least two transmission blocks respectively correspond to one MCS table.

8. An information indication method, comprising:

sending Downlink Control Information (DCI), wherein the DCI is used for indicating at least two Modulation Coding Scheme (MCS) indexes corresponding to at least two transport blocks, and each transport block in the at least two transport blocks corresponds to one MCS index in the at least two MCS indexes;

indicating at least two MCS tables corresponding to the at least two transport blocks, wherein each transport block in the at least two transport blocks corresponds to one MCS table in the at least two MCS tables;

and sending the at least two transport blocks according to at least two MCS indexes corresponding to the at least two transport blocks and at least two MCS tables corresponding to the at least two transport blocks.

9. The information indication method of claim 8, wherein said indicating at least two MCS tables corresponding to said at least two transport blocks comprises:

indicating at least two MCS tables corresponding to the at least two transport blocks through a high layer signaling; and/or

Indicating at least two MCS tables corresponding to the at least two transport blocks through a bit field in the DCI.

10. The information indication method of claim 9, wherein the indicating at least two MCS tables corresponding to the at least two transport blocks through bit fields in the DCI comprises:

indicating at least two MCS tables corresponding to the at least two transport blocks through a bit state of a first bit field in the DCI, wherein the first bit field comprises N bits, and N is the transport block number of the at least two transport blocks, or 2, or 3; alternatively, the first and second electrodes may be,

indicating at least two MCS tables corresponding to the at least two transport blocks through bit states of at least two second bit fields in the DCI, wherein each of the at least two second bit fields is 1bit, and the number of the second bit fields is the same as the number of the transport blocks of the at least two transport blocks.

11. The information indication method according to claim 9 or 10, wherein said indicating at least two MCS tables corresponding to said at least two transport blocks comprises:

indicating at least two MCS tables corresponding to the at least two transport blocks by first information, the first information including at least one of: and scrambling the Radio Network Temporary Identifier (RNTI) of the DCI, the search space where the DCI is located or the format of the DCI.

12. The information indication method according to any of claims 8-11, wherein before said sending of the downlink control information, DCI, the method further comprises:

and receiving first notification information, wherein the first notification information is used for notifying the network equipment that the terminal equipment has the capability of receiving at least two transport blocks respectively corresponding to at least two MCS tables.

13. The information indication method according to any of claims 8-12, wherein before said sending of the downlink control information, DCI, said method further comprises:

and sending first configuration information, wherein the first configuration information is used for configuring at least two transport blocks which indicate that the terminal equipment can receive at least two MCS tables respectively.

14. The information indication method according to any of claims 8-13, wherein before said indicating at least two MCS tables corresponding to said at least two transport blocks, said method further comprises:

and indicating a first mode through the format of the DCI, wherein the first mode is that the at least two transport blocks respectively correspond to one MCS table.

15. An information indicating device, comprising:

a receiving unit, configured to receive downlink control information DCI, where the DCI is used to indicate at least two modulation and coding scheme MCS indexes corresponding to at least two transport blocks, where each of the at least two transport blocks corresponds to one of the at least two MCS indexes;

a processing unit, configured to acquire at least two MCS tables corresponding to the at least two transport blocks indicated by the DCI received by the receiving unit, where each of the at least two transport blocks corresponds to one of the at least two MCS tables;

the receiving unit is further configured to receive the at least two transport blocks according to the at least two MCS indexes corresponding to the at least two transport blocks and the at least two MCS tables corresponding to the at least two transport blocks, which are obtained by the processing unit.

16. The apparatus according to claim 15, wherein the processing unit is specifically configured to:

And acquiring at least two MCS tables corresponding to the at least two transport blocks according to the bit field in the DCI received by the receiving unit.

17. The apparatus according to claim 16, wherein the processing unit is specifically configured to:

acquiring at least two MCS tables corresponding to the at least two transport blocks according to a bit state of a first bit field in the DCI received by the receiving unit, where the first bit field includes N bits, and N is the number of transport blocks of the at least two transport blocks, or 2, or 3; alternatively, the first and second electrodes may be,

and obtaining at least two MCS tables corresponding to the at least two transport blocks according to bit states of at least two second bit fields in the DCI received by the receiving unit, wherein each of the at least two second bit fields is 1bit, and the number of the second bit fields is the same as the number of the transport blocks of the at least two transport blocks.

18. The apparatus according to claim 16 or 17, wherein the processing unit is specifically configured to:

19. The apparatus according to any one of claims 15-18, further comprising:

a sending unit, configured to send first notification information, where the first notification information is used to notify a network device that a terminal device has a capability of receiving at least two transport blocks respectively corresponding to at least two MCS tables.

20. The apparatus according to any of claims 15-19, wherein the receiving unit is further configured to:

21. The apparatus according to any of claims 15-20, wherein the processing unit is further configured to:

and determining a first mode according to the format of the DCI received by the receiving unit, wherein the first mode is that the at least two transport blocks respectively correspond to one MCS table.

22. An information indicating device, comprising:

a sending unit, configured to send downlink control information DCI, where the DCI is used to indicate at least two modulation and coding scheme MCS indexes corresponding to at least two transport blocks, where each of the at least two transport blocks corresponds to one of the at least two MCS indexes;

a processing unit, configured to indicate at least two MCS tables corresponding to the at least two transport blocks, where each of the at least two transport blocks corresponds to one of the at least two MCS tables;

the sending unit is further configured to send the at least two transport blocks according to at least two MCS indexes corresponding to the at least two transport blocks and at least two MCS tables corresponding to the at least two transport blocks.

23. The apparatus according to claim 22, wherein the processing unit is specifically configured to:

24. The apparatus according to claim 23, wherein the processing unit is specifically configured to:

25. The apparatus according to claim 23 or 24, wherein the processing unit is specifically configured to:

26. The apparatus according to any one of claims 22-25, further comprising:

the terminal device comprises a receiving unit, a sending unit and a receiving unit, wherein the receiving unit is used for receiving first notification information which is used for notifying the network device that the terminal device has the capability of receiving at least two transport blocks respectively corresponding to at least two MCS tables.

27. The apparatus according to any of claims 22-26, wherein the sending unit is further configured to:

28. The apparatus according to any of claims 22-27, wherein the processing unit is further configured to:

29. A computer-readable storage medium, comprising: computer software instructions;

when the computer software instructions are run in an information indicating device or a chip built in an information indicating device, the device is caused to perform the information indicating method according to any one of claims 1-7.

30. A computer-readable storage medium, comprising: computer software instructions;

when the computer software instructions are run in an information indicating apparatus or a chip built in an information indicating apparatus, cause the apparatus to perform the information indicating method according to any one of claims 8 to 14.