WO2018082387A1

WO2018082387A1 - Control information transmission method, base station and terminal

Info

Publication number: WO2018082387A1
Application number: PCT/CN2017/099750
Authority: WO
Inventors: 陈冬雷; 夏树强; 郝鹏; 左志松; 游爱民
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-11-03
Filing date: 2017-08-30
Publication date: 2018-05-11
Also published as: CN108024317A

Abstract

A control information transmission method, comprising: a base station sending first resource status indication information to a first terminal by means of a physical downlink control channel, the physical downlink control channel being located in a third scheduling unit; the third scheduling unit is a scheduling unit having a first scheduling interval length; the first resource status indication information is used to indicate that a resource occupied by downlink data scheduled by the physical downlink control channel is a resource in a puncturing mode or a resource in a normal mode; the downlink data is located in a first scheduling unit, the first scheduling unit being a scheduling unit having a first scheduling interval length; and the first terminal is a terminal having a first scheduling interval.

Description

Control information transmission method, base station and terminal

Technical field

The present application relates to, but is not limited to, the field of mobile communication networks, and in particular, to a control information transmission method, a base station, and a terminal.

Background technique

In the 3GPP (Third Generation Partnership Project) NR (New Radio) demand report, it is clear that the NR network needs to support low latency and high reliability services (URLLC, Ultra-Reliable and Low Latency Communications). . The performance indicators of the URLLC service include two, which are the user plane average delay and reliability. For user plane delay, the uplink and downlink are both 0.5 millisecond (ms) average delay; in terms of reliability, it is required to achieve 99.999% reliable transmission for a given size of data packet within 1 ms under certain channel conditions. This will require a shorter scheduling interval for the URLLC service, for example using 125 microseconds as the length of a slot, or 2 subcarrier spacings of 15 kHz with a normal cyclic prefix (CP, Cyclic Prefix). The length of the OFDM (Orthogonal Frequency Division Multiplexing) is the length of one time slot. The time slot here is used as a scheduling unit, and the length of the time slot is also the scheduling interval.

For enhanced mobile broadband services (eMBB, enhanced mobile BroadBand), the delay requirement is more relaxed than URLLC, and the average delay of both uplink and downlink user planes is 4ms. Therefore, the base station can adopt a longer scheduling interval. The eMBB data is scheduled to reduce the control channel overhead caused by frequent scheduling. For example, 0.5 ms or 1 ms is used as the length of one slot, where the slot is the scheduling unit having the first scheduling interval length, and the length of the slot is the first scheduling interval.

For the downlink data transmission of the eMBB service, as shown in FIG. 1, two different scheduling units having a first scheduling interval length, and the first type of scheduling unit having a first scheduling interval length on the left side includes a downlink part (DL part). , the uplink part (UL part) and a guard interval (GP, Guard Period), this type of scheduling unit with the first scheduling interval length is used in the network of Time Division Duplexing (TDD) mode; Two types of scheduling units having a first scheduling interval length include only a downlink portion, and this type has a first scheduling interval. The scheduling unit of the length can be used in the network of the TDD duplex mode or in the network of the Frequency Division Duplex (FDD) mode. The downlink part of the two types of scheduling units having the first scheduling interval length includes two parts, the downlink control part (DL ctrl) is used for transmitting downlink control information, and the downlink data part (DL data) is used for transmitting downlink data, two parts. Send by time division. The downlink control information is sent on the physical downlink control channel, and the downlink data is sent on the physical downlink data channel.

Because the URLLC service has a very low transmission delay requirement, the waiting time in the queue must also be short. For the downlink service, when the URLLC service arrives at the base station, the URLLC service needs to be quickly scheduled. Similarly, for uplink services, it is also necessary to quickly send out from the terminal. Frequency division multiplexing is adopted for the eMBB service and the URLLC service. It is a way to reserve sufficient resources for the URLLC service. However, because the URLLC service transmission frequency is relatively low, and the scheduling requirement is short due to extremely high reliability requirements. In this case, a large amount of frequency resources need to be reserved. Therefore, the method of reserving resources will bring a great waste of resources, and there are certain limitations for the NR network to support the URLLC service.

When the base station performs the eMBB downlink service transmission, a more efficient way to support the URLLC service and the eMBB service multiplexing is to allow the URLLC service to punch the eMBB service that is already being transmitted. Since the eMBB service is punctured by the URLLC service, if the eMBB terminal does not know which part of the data it receives is covered by the URLLC data, the eMBB terminal directly decodes all the received data, and the performance is drastically reduced. Therefore, it is necessary to The location of the eMBB data punctured by the URLLC tells the eMBB terminal, thereby improving the performance of the eMBB terminal. The URLLC service of the URLLC terminal shown in FIG. 2 punctifies the eMBB service of the eMBB terminal. However, in some cases, the data of the eMBB terminal is determined not to be punctured by the URLLC. At this time, if the eMBB terminal still detects the location punched by the URLLC, it will bring more power consumption to the terminal.

Summary of invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

The embodiment of the present application provides a control information transmission method, a base station, and a terminal, which can notify a terminal having a first scheduling interval not to detect a URLLC puncturing position, thereby saving power consumption of the terminal and improving the power consumption of the terminal. Transmission efficiency.

In a first aspect, an embodiment of the present application provides a control information transmission method, where the method includes:

The base station sends the first resource status indication information to the first terminal by using the physical downlink control channel, where the physical downlink control channel is located in a third scheduling unit, and the third scheduling unit is a scheduling unit having a first scheduling interval length, The first resource status indication information is used to indicate that the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in a puncturing mode or a resource in a normal mode, where the downlink data is located in a first scheduling unit, The first scheduling unit is a scheduling unit having a first scheduling interval length, and the first terminal is a terminal having a first scheduling interval.

In a second aspect, an embodiment of the present application provides a control information transmission method, where the method includes:

The first terminal receives the first resource status indication information that is sent by the base station by using the physical downlink control channel, and decodes the downlink data scheduled by the physical downlink control channel according to the first resource status indication information, where the physical downlink control is performed. The channel is located in the third scheduling unit, the third scheduling unit is a scheduling unit having a first scheduling interval length, and the first resource status indication information is used to indicate resources occupied by the downlink data scheduled by the physical downlink control channel. For the resource in the puncturing mode or the resource in the normal mode, the downlink data is located in the first scheduling unit, and the first scheduling unit is a scheduling unit having a first scheduling interval length.

In a third aspect, the embodiment of the present application provides a base station, where the base station includes: a sending unit, configured to send, by using a physical downlink control channel, first resource status indication information to a first terminal, where the physical downlink control channel is located The third scheduling unit is a scheduling unit having a first scheduling interval length, where the first resource status indication information is used to indicate that the resource occupied by the downlink data scheduled by the physical downlink control channel is punctured. The resource in the mode or the resource in the normal mode, the downlink data is located in the first scheduling unit, the first scheduling unit is a scheduling unit having a first scheduling interval length, and the first terminal is configured to have a first scheduling interval. Terminal.

In a fourth aspect, the embodiment of the present application provides a terminal, where the terminal includes: a receiving unit and a processing unit, where the receiving unit is configured to receive first resource status indication information that is sent by the base station by using a physical downlink control channel, where The physical downlink control channel is located in a third scheduling unit, the third scheduling unit is a scheduling unit having a first scheduling interval length, and the first resource status indication information is used to indicate the physical downlink control channel scheduling. The resources occupied by the downlink data are resources in the puncturing mode or resources in the normal mode, and the downlink data is located in the first scheduling unit. The first scheduling unit is a scheduling unit having a first scheduling interval length;

The processing unit is configured to decode downlink data scheduled by the physical downlink control channel according to the first resource status indication information.

The embodiment of the present application further provides a computer readable storage medium storing computer executable instructions, where the computer executable instructions are executed by a processor to implement the control information transmission method of the first aspect.

The embodiment of the present application further provides a computer readable storage medium storing computer executable instructions, where the computer executable instructions are executed by a processor to implement the control information transmission method of the second aspect.

The embodiment of the present application provides a control information transmission method, a base station, and a terminal. In the case where a URLLC service connection exists, the eMBB terminal is dynamically notified to the downlink data having the first scheduling interval that is not punctured by the URLLC. The punching position of the URLLC is detected, thereby saving terminal power consumption. In addition, when the URLLC terminal does not exist in the connection state of the URLLC service in the cell, the eMBB terminal is dynamically notified that the location of the puncturing of the URLLC does not need to be detected, thereby saving terminal power consumption. Therefore, the control information transmission method, the base station, and the terminal provided by the embodiments of the present application can dynamically adapt to the change of the URLLC load in the cell, thereby rapidly changing the resources used in the puncturing mode, and allowing the eMBB terminal to punch less. Decoding in mode to save power. Since the frequency of occurrence of the URLLC service is very low, the base station dynamically punctifies the service data of each eMBB terminal at a predetermined location by puncturing the eMBB terminal service data in the URLLC service, so that each eMBB terminal receives itself. The location of the URLLC service is detected in the data, which improves the transmission efficiency.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

In the drawings, which are not necessarily to scale, the Like reference numerals with different letter suffixes may indicate different examples of similar components. The drawings generally illustrate the various embodiments discussed herein by way of example and not limitation.

1 is a schematic diagram of two types of scheduling units having a first scheduling interval length for downlink eMBB service transmission;

2 is a schematic diagram of a URLLC service with a shorter scheduling interval for puncturing an eMBB service of an eMBB terminal having a first scheduling interval for performing URLLC service transmission;

FIG. 3 is a schematic diagram of allocating resources in a normal mode by two types of terminals with different scheduling intervals according to an embodiment of the present disclosure;

4 is a schematic diagram of resources occupied by downlink data scheduled by a physical downlink control channel according to a first resource status indication information provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of receiving first resource state indication information located in a physical downlink control channel according to an embodiment of the present disclosure;

FIG. 6 is a schematic flowchart 1 of a method for transmitting control information according to an embodiment of the present application;

FIG. 7 is a second schematic flowchart of a control information transmission method according to an embodiment of the present disclosure;

FIG. 8 is a schematic diagram of setting a transmission power to 0 in a set of predetermined resource elements for indicating a punching position according to an embodiment of the present application; FIG.

FIG. 9 is a schematic diagram of sending punch location information to an eMBB terminal at a predetermined location according to an embodiment of the present application; FIG.

FIG. 10 is a schematic structural diagram 1 of a base station according to an embodiment of the present application;

FIG. 11 is a schematic structural diagram 1 of a terminal according to an embodiment of the present application;

FIG. 12 is a second schematic structural diagram of a terminal according to an embodiment of the present disclosure;

FIG. 13 is a schematic structural diagram 2 of a base station according to an embodiment of the present disclosure;

FIG. 14 is a schematic structural diagram 3 of a terminal according to an embodiment of the present disclosure.

Detailed

The technical solutions in the embodiments of the present application will be clearly and completely described in the following with reference to the accompanying drawings in the embodiments.

In the embodiment of the present application, two modes are defined for the state of the network downlink resource, which are resources in the puncturing mode and resources in the normal mode. For the resources in the punch mode, the punch The resource in the mode is shared by the first terminal and the second terminal, where the first terminal is a terminal having a first scheduling interval, and the second terminal is a terminal having a shorter scheduling interval than the first scheduling interval, when the base station has utilized When the resource in the resource area of the puncturing mode sends data to the first terminal, the base station may send the second scheduling unit to the second terminal by puncturing the downlink data of the first terminal, as shown in FIG. 2, the eMMB UE1 For the first terminal, the URLLC UE1 is the second terminal, and the two terminals jointly use the resources in the shared resource area S.

When the downlink data transmission is performed by using the resources in the puncturing mode, the behavior of the base station and the first terminal includes: when the downlink data sent by the base station to the first terminal in the resource in the puncturing mode is played by the second scheduling unit of the second terminal In the hole, the base station notifies the location where the first terminal is punctured, the first terminal detects the position of the punched hole, and when the punched position is detected, removes the corresponding position in the punched position in the received downlink data. The data is decoded to improve data demodulation performance. Wherein, replacing the data in the corresponding area of the punching position by using the zero log likelihood ratio is a method for decoding the data in the corresponding area of the punched position in the received downlink data for decoding.

When the base station sends downlink data to the first terminal in the resource in the puncturing mode but is not punctured by the second scheduling unit, the first terminal does not detect the puncturing position and directly decodes the downlink data. The first terminal decodes the downlink data transmitted by the resource in the puncturing mode, and is referred to as decoding in the puncturing mode.

For the resources in the normal mode, the resources in the normal mode are used by the first terminal or the second terminal separately. As shown in FIG. 3, the first terminal separately uses the independent resource area X1, and the second terminal uses the independent resource area X2 separately. .

When the downlink data transmission is performed by using the resources in the normal mode, the behavior of the base station and the first terminal includes: the base station does not need to notify the first terminal of the punching position, and the first terminal does not need to detect the punching position, and directly translates the downlink data. code. The first terminal decodes downlink data transmitted by using resources in the normal mode, and is referred to as decoding in the normal mode.

When the downlink data is sent to the first terminal by using the resources in the puncturing mode and the resources in the normal mode, the first terminal has different behaviors, that is, if the resource used for data transmission is a resource in the puncturing mode, the first The terminal selects the decoding in the puncturing mode. If the resource used for data transmission is a resource in the normal mode, the first terminal selects the decoding in the normal mode. Therefore, the base station can notify the first terminal to use the data by signaling. The transmitted resource is the resource in the punch mode or the normal mode. Resources.

In addition, compared with sending the punch position information only in the retransmission, notifying the position of the punched hole in the new transmission will improve the performance of the newly transmitted data, and the punching position information can still be transmitted in the retransmission. In order to prevent the new transmission hole position detection error, the retransmission data and the new transmission data are combined and decoded.

The embodiment of the present application provides a control information transmission method, where the method is applied to a base station, and the method may include: the base station sending the first resource status indication information to the first terminal by using a physical downlink control channel.

The physical downlink control channel is located in a third scheduling unit, the third scheduling unit is a scheduling unit having a first scheduling interval length, and the first resource status indication information is used to indicate the physical downlink control channel scheduling. The resources occupied by the downlink data are the resources in the puncturing mode or the resources in the normal mode, the downlink data is located in the first scheduling unit, and the first scheduling unit is a scheduling unit having a length of the first scheduling interval. The first terminal is a terminal having a first scheduling interval.

It should be noted that the third scheduling unit and the first scheduling unit are each one of a type of scheduling unit having a first scheduling interval. Here, the first scheduling unit and the third scheduling unit may be the same scheduling unit, or may not be the same scheduling unit.

In a possible implementation, the sending, by the base station, the first resource status indication information to the first terminal by using the physical downlink control channel may include:

The base station sends the first resource status indication information to the first terminal in an explicit manner by using downlink control information (DCI, Downlink Control Information) in the physical downlink control channel.

The sending, by the base station, the first resource status indication information to the first terminal in an explicit manner by using the DCI in the physical downlink control channel, may include:

A bit (bit) is included in the DCI, and the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in a puncturing mode or a resource in a normal mode.

Transmitting, by the base station, the first part by DCI located in the physical downlink control channel A resource status indication information is sent to the first terminal.

The sending, by the base station, the first resource status indication information to the first terminal in an implicit manner by using the DCI located in the physical downlink control channel, may include:

The DCI is scrambled by using the RN (Radio Network Temporary Identity) to indicate that the resources occupied by the downlink data scheduled by the physical downlink control channel are resources in the puncturing mode or the normal mode. Resources under.

For example, as shown in FIG. 4, the resource occupied by the downlink data scheduled by the physical downlink control channel by using the first resource status indication information located in the physical downlink control channel is a resource in the puncturing mode or a normal mode. Schematic diagram of the resource.

The eMBB terminal (UE, User Equipment) in FIG. 4 has a first scheduling interval, that is, the eMBB terminal is the first terminal in the control information transmission method provided by the embodiment, and the URLLC terminal has a shorter scheduling interval than the first scheduling interval. That is, the URLLC terminal is the second terminal in the control information transmission method provided by this embodiment.

The Figure 4 includes three slots, namely, slot 1, slot 2, and slot 3. In the three slots in the figure, the base station considers that the resource area Xa in slot 1 and slot 2 will serve as the eMBB terminal. The resource area used independently, in the slot 3, the resource area Xb will be used as a resource area independently used by the eMBB terminal.

When the downlink data of the eMBB terminal is scheduled in the resource area Xa of the slot 1 and the slot 2, the first resource status indication information in the corresponding physical downlink control channel indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is in the normal mode. Resources, such as eMBB UE4 and eMBB UE5, will decode in the normal mode when decoding the downlink data, that is, the punching position is not detected.

When the downlink data of the eMBB terminal is scheduled in the resource area Xb of the slot 3, the first resource status indication information in the corresponding physical downlink control channel indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in the normal mode. For example, the eMBB UE6, when decoding the downlink data, the terminal will use the decoding in the normal mode, that is, the punching position is not detected.

In the resource area S1 of slot 1 and slot 2, the base station considers that the eMBB terminal scheduled in the resource area may be punctured by the URLLC terminal, and therefore, the resource area is a URLLC terminal and an eMBB. The resource area shared by the terminal.

When the downlink data of the eMBB terminal is scheduled in the resource area S1 of the slot 1 and the slot 2, the first resource status indication information in the corresponding physical downlink control channel also indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is The resources in the hole mode, such as eMBB UE1 and eMBB UE2, will decode in the puncturing mode when decoding the downlink data, that is, including detecting the puncturing position. In slot 2, since the URLLC terminal does not The downlink data of the eMBB UE2 is punctured, and therefore, the terminal eMBB UE2 will not detect the puncturing position.

When the downlink data of the eMBB terminal is scheduled in the resource area S2 of the slot 3, the first resource status indication information in the corresponding physical downlink control channel also indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is in the puncturing mode. The resource, such as eMBB UE3, will decode in the puncturing mode when decoding the downlink data, that is, including detecting the puncturing position.

The control information transmission method provided in this embodiment dynamically informs the eMBB terminal that the downlink data of the first scheduling interval that is not punctured by the URLLC is not required to detect the puncturing position of the URLLC in the case where the URLLC service connection exists. Thereby saving terminal power consumption. In addition, when the URLLC terminal does not exist in the connection state of the URLLC service in the cell, the eMBB terminal is dynamically notified that the location of the puncturing of the URLLC does not need to be detected, thereby saving terminal power consumption. Therefore, the control information transmission method provided in this embodiment can dynamically adapt to the change of the URLLC load in the cell, thereby rapidly changing the resources used in the puncturing mode, and allowing the terminal to perform decoding in the puncturing mode less. Save power.

An embodiment of the present application provides a control information transmission method, where the method is applied to a first terminal, where the first terminal is a terminal having a first scheduling interval, and the method may include: receiving, by the first terminal, the base station by using a physical downlink control channel. The first resource status indication information is used to decode the downlink data scheduled by the physical downlink control channel according to the first resource status indication information.

The physical downlink control channel is located in a third scheduling unit, the third scheduling unit is a scheduling unit having a first scheduling interval length, and the first resource status indication information is used to indicate the physical downlink control channel scheduling. The resources occupied by the downlink data are the resources in the puncturing mode or the resources in the normal mode, the downlink data is located in the first scheduling unit, and the first scheduling unit is a scheduling unit having a length of the first scheduling interval.

It should be noted that the third scheduling unit and the first scheduling unit both have a first scheduling interval. A scheduling unit in a class of scheduling units. Here, the first scheduling unit and the third scheduling unit may be the same scheduling unit, or may not be the same scheduling unit.

In a possible implementation, the first terminal receiving the first resource status indication information sent by the base station by using the physical downlink control channel may include:

The first terminal receives the first resource status indication information that is notified by the base station in an implicit manner by using a DCI located in the physical downlink control channel.

The first resource status indication information that is notified by the DCI in an implicit manner includes: scrambling the DCI by using different RNTIs, and indicating that the downlink data scheduled by the physical downlink control channel is occupied by the downlink data. The resource is a resource in the puncturing mode or a resource in the normal mode.

The first terminal receives the first resource status indication information that is notified by the base station in an explicit manner by using a DCI located in the physical downlink control channel.

The first resource status indication information that is notified by the DCI in an explicit manner includes: including, in the DCI, a bit that is used to indicate that the resource occupied by the downlink data scheduled by the physical downlink control channel is punctured. Resources in mode or resources in normal mode.

Illustratively, the resource in the puncturing mode is a resource shared by the first terminal and the second terminal, and the second terminal is a terminal having a shorter scheduling interval than the first scheduling interval, when Receiving, by the terminal, the base station, by using the resource in the puncturing mode, to enable the base station to punct the resource, and sending, by the puncturing location, the second scheduling unit to the second terminal, where the second The scheduling unit is a scheduling unit having a shorter scheduling interval length than the first scheduling interval, wherein the puncturing location is based on the second terminal adopting the second scheduling unit in the downlink of the first scheduling unit Part of the location where the punching transmission is generated.

In a possible implementation, the decoding, by the first terminal, the downlink data scheduled by the physical downlink control channel according to the first resource status indication information, may include:

When the first resource status indication information indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in a puncturing mode, the first terminal selects a decoding in a puncturing mode, where The decoding in the puncturing mode includes: the first terminal detects the punching position, and is connected The data in the corresponding area of the punching position is removed from the received data for decoding.

In a possible implementation, the decoding, by the first terminal, the downlink data scheduled by the physical downlink control channel according to the first resource status indication information, may include: when the first resource status indication information indicates the When the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in the normal mode, the first terminal selects the decoding in the normal mode.

Illustratively, as shown in FIG. 5, a schematic diagram of receiving first resource status indication information located in a physical downlink control channel. The eMBB terminal in FIG. 5 has a first scheduling interval, that is, the eMBB terminal is the first terminal in the control information transmission method provided by this embodiment, and the URLLC terminal has a shorter scheduling interval than the first scheduling interval, that is, the URLLC terminal is the current The second terminal in the control information transmission method provided by the embodiment.

The FIG. 5 includes four eMBB terminals: eMBB UE1, eMBB UE2, eMBB UE3, eMBB UE4, and two URLLC terminals: URLLC UE1 and URLLC UE2, wherein both URLLC UE1 and URLLC UE2 have periodic services. The URLLC UE1 performs periodic service transmission in slots 1, slot 3, and slot 5, and URLLC UE2 performs periodic service transmission in slots 2 and slot 5. In each time slot, as the URLLC terminal service occurs, the independent resource area used for eMBB terminal scheduling also changes.

When the downlink data of the eMBB terminal is scheduled in the independent resource region of each time slot, the first resource state indication information in the corresponding physical downlink control channel indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is in the normal mode. Resources, such as eMBB UE2 in slot1 and eMBB UE4 in slot2, these eMBB terminals will use the decoding in the normal mode when decoding the corresponding downlink data, that is, the punching position is not detected.

When the downlink data of the eMBB terminal is scheduled in the shared resource area of each time slot, the first resource state indication information in the corresponding physical downlink control channel indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is a puncturing mode. The following resources, for example, eMBB UE1 in slot1 and eMBB UE3 in slot2, these terminals will use the decoding in the puncturing mode when decoding the corresponding downlink data, that is, detecting the puncturing position.

As the URLLC service changes, the shared resource area and the independent resource area in the cell also change. By adopting the method of transmitting the first resource status indication information in the physical downlink control channel, the base station can quickly match the shared resource area with the URLLC service. As shown in slot 4 in Figure 5, because of URLLC UE2 is also a periodic service and is sent in slot 2 and slot 5. Therefore, the independent resource area in slot 4 includes all downlink resources. Since no URLLC service occurs in the time slot, more resources are made into resources in the independent resource area, thereby reducing The eMBB terminal performs decoding in the puncturing mode.

In the control information transmission method provided in this embodiment, in the case that there is a URLLC service connection, the eMBB terminal can dynamically learn that the punch location of the URLLC does not need to be detected for the downlink data having the first scheduling interval that is not punctured by the URLLC. , thereby saving terminal power consumption. In addition, when there is no connection state of the URLLC service in the cell, the eMBB terminal can dynamically learn that the punch location of the URLLC does not need to be detected, thereby saving terminal power consumption. Therefore, the control information transmission method provided in this embodiment can dynamically adapt to the change of the URLLC load in the cell, thereby rapidly changing the resources used in the puncturing mode, and allowing the terminal to perform decoding in the puncturing mode less. Save power.

The embodiment of the present application provides a control information transmission method. As shown in FIG. 6, the method may include:

Step 101: The base station sends the first resource status indication information to the first terminal by using a physical downlink control channel.

Step 102: The first terminal receives the first resource status indication information that is sent by the base station by using the physical downlink control channel, and decodes the downlink data scheduled by the physical downlink control channel according to the first resource status indication information.

The decoding, by the first terminal, the downlink data scheduled by the physical downlink control channel according to the first resource status indication information, may include:

When the first resource status indication information indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in the puncturing mode, the first terminal selects the decoding in the puncturing mode, and the playing The decoding in the hole mode includes: the first terminal detects a punching position, and removes data in the corresponding area of the punching position in the received data for decoding;

When the first resource status indication information indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in the normal mode, the first terminal selects decoding in the normal mode.

Step 103: The base station sends the second resource status indication information by using a physical downlink broadcast channel.

The physical downlink broadcast channel is located in a fourth scheduling unit, and the fourth scheduling unit is a scheduling unit having a first scheduling interval length, where the base station passes the second resource status indication information and the first resource. The status indicator information is combined, and the resource that is used by the downlink data that is scheduled by the physical downlink control channel is the resource in the puncturing mode or the resource in the normal mode, and the second resource status indication information is used to indicate the physical downlink. The downlink resources of the cell corresponding to the broadcast channel are resources in the puncturing mode or resources in the normal mode.

The base station, by combining the second resource status indication information and the first resource status indication information, indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in the puncturing mode or in a normal mode. Resources that can include:

When the base station sends the second resource status indication information by the physical downlink broadcast channel to indicate that the downlink resource of the cell is a resource in the puncturing mode, in the cell corresponding to the physical downlink broadcast channel, the base station passes the The first resource status indication information in the physical downlink control channel indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in a puncturing mode or a resource in a normal mode;

When the base station sends the second resource status indication information on the physical downlink broadcast channel to indicate that the downlink resource of the cell is a resource in the normal mode, the base station passes the second resource in the cell corresponding to the physical downlink broadcast channel. The status indication information indicates that the resource occupied by the downlink data received by the first terminal in the downlink part of the first scheduling unit is a resource in a normal mode.

Step 104: The first terminal receives the second resource status indication information that is sent by the base station by using the physical downlink broadcast channel, and schedules the physical downlink control channel according to the second resource status indication information and the first resource status indication information. The downlink data is decoded.

In a possible implementation, when the base station sends the second resource status indication information by using the physical downlink broadcast channel to indicate that the downlink resource of the cell is a resource in the puncturing mode, the physical downlink broadcast channel corresponds to the physical downlink broadcast channel. The first terminal passes the physical downlink control signal according to the first resource status indication information that is located in the physical downlink control channel by the base station. The downlink data of the channel scheduling is decoded.

In a possible implementation manner, when the base station sends the second resource status indication information on the physical downlink broadcast channel to indicate that the downlink resource of the cell is a resource in the normal mode, in the cell corresponding to the physical downlink broadcast channel, The first terminal uses the decoding in the normal mode for the downlink data received in the downlink part of the first scheduling unit.

It should be noted that the fourth scheduling unit, the third scheduling unit, and the first scheduling unit are all one of a type of scheduling unit having a first scheduling interval. Here, the fourth scheduling unit, the third scheduling unit, and the first scheduling unit may be the same scheduling unit, or may not be the same scheduling unit.

Illustratively, the eMBB terminal has a first scheduling interval and the URLLC terminal has a shorter scheduling interval than the first scheduling interval. According to the requirements of TR38.913, the typical services of URLLC, such as robotic surgery, industrial control, etc., may only occur in specific areas. In many rural areas, it may not be necessary to support URLLC services. Therefore, in many base stations, terminals do not need to be opened. Hole detection function, which reduces terminal power consumption. The base station sends the 1-bit information through the physical downlink broadcast channel, and the 1-bit information, that is, the second resource indication information, notifies the eMBB terminal in the cell corresponding to the physical downlink broadcast channel, and the downlink resource of the cell is a resource in the normal mode, when eMBB When the terminal receives all the downlink data with the first scheduling interval, the terminal always selects the decoding in the normal mode, that is, does not detect whether the received downlink data is punctured and punctured by the URLLC service, thereby saving terminal power consumption. .

In addition, when the base station supports the URLLC service and supports the URLLC service to punct the downlink data of the eMBB terminal, the base station notifies the eMBB terminal in the cell corresponding to the physical downlink broadcast channel by transmitting the 1-bit indication information, and the downlink resource of the cell. For the resources in the puncturing mode, when the eMBB terminal receives all the downlink data with the first scheduling interval in the cell, the terminal performs scheduling on the physical downlink control channel according to the first resource state indication information of the base station in the physical downlink control channel. Decoding, if the first resource status indication information indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in the puncturing mode, the eMBB terminal selects the decoding in the puncturing mode, if When the first resource status indication information indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in the normal mode, the eMBB terminal selects the decoding in the normal mode, where the decoding in the puncturing mode includes: the eMBB terminal Detection The punching position removes data in the corresponding area of the punching position in the received data for decoding.

When the system information is sent to indicate that the downlink resource in the terminal cell is a resource in the puncturing mode or a resource in the normal mode, if the system information is similar to the SIB (System Information Block) in the LTE (Long Term Evolution) Block 1 or SIB transmission in the system information message. Since these SIB information is transmitted on the physical downlink data channel, whether the physical downlink data channel can be punctured at this time, the base station and the terminal have not reached an agreement. Assuming that the downlink resource in the default cell of the eMBB terminal is a resource in the puncturing mode, when the base station does not support the URLLC service to punct the eMBB terminal service, when the eMBB terminal receives the system information located on the physical downlink data channel, If the system information is transmitted incorrectly, the terminal will detect the punch location to determine whether the system information on the physical downlink data channel is punctured, and the eMBB terminal causes unnecessary power consumption.

Assuming that the downlink resource in the default cell of the eMBB terminal is a resource in the normal mode, if the base station supports the URLLC service and allows the eMBB terminal service to be punctured, if the base station uses the URLLC service pair to indicate to the eMBB terminal The downlink resources in the cell are punctured for the resources in the puncturing mode or the resources in the normal mode, and then the eMBB terminal will most likely receive the erroneous reception for indicating the downlink in the cell to the eMBB terminal. The resource is system information of resources in the puncturing mode or resources in the normal mode. In order to enable the system information for indicating that the downlink resource in the cell is the resource in the puncturing mode or the resource in the normal mode is not punctured by the service of the URLLC terminal, the downlink will be used for the URLLC service. The resources of the link impose certain restrictions.

Therefore, it is recommended to transmit information for indicating to the eMBB terminal that the downlink resource in the cell is a resource in the puncturing mode or a resource in the normal mode in the physical downlink broadcast channel.

The control information transmission method provided in this embodiment dynamically informs the eMBB terminal that the downlink data of the first scheduling interval that is not punctured by the URLLC is not required to detect the puncturing position of the URLLC in the case where the URLLC service connection exists. Thereby saving terminal power consumption. In addition, when the URLLC terminal does not exist in the connection state of the URLLC service in the cell, the eMBB terminal is dynamically notified that the location of the puncturing of the URLLC does not need to be detected, thereby saving terminal power consumption. Therefore, the control information transmission method provided in this embodiment can dynamically adapt to the change of the URLLC load in the cell, thereby rapidly changing the resources used in the puncturing mode, so that the terminal performs the puncturing mode less. Decode to save power.

The embodiment of the present application provides a control information transmission method. As shown in FIG. 7, the method may include:

Step 201: The base station sends the first resource status indication information to the first terminal by using a physical downlink control channel.

Illustratively, the resources in the puncturing mode are resources shared by the first terminal and the second terminal, and the second terminal is a terminal having a shorter scheduling interval than the first scheduling interval. When the base station uses the resources in the puncturing mode to send data to the first terminal, allowing the base station to punct the resources in the puncturing mode, and sending the resources to the second terminal at the puncturing position. a second scheduling unit, the second scheduling unit is a scheduling unit having a shorter scheduling interval length than the first scheduling interval, wherein the puncturing location is based on the second terminal adopting the second scheduling unit A location where the puncturing transmission is generated is performed in a downlink portion of the first scheduling unit.

In a possible implementation manner, when the first resource status indication information indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in the puncturing mode, if the second terminal uses the a second scheduling unit performing puncturing transmission on a downlink portion of the first scheduling unit, the base station performing at least one of: a predetermined set of the first scheduling unit within one symbol after the puncturing position The power for downlink data transmission is set to 0 on the resource element, and the power for downlink data transmission is set to 0 on a predetermined resource element in the first scheduling unit in one symbol before the puncturing transmission; If the second terminal does not use the second scheduling unit to perform puncturing transmission on the downlink part of the first scheduling unit, send downlink data with power greater than 0 on the set of predetermined resource elements.

The at least one predetermined resource element may be included in each physical resource block (PRB) in the frequency domain in the first scheduling unit.

Wherein the time domain and the frequency domain of the set of predetermined resource elements in the first scheduling unit The first terminal may be notified by one or more of the following combinations:

The base station is configured to the first terminal by using a radio resource control (RRC) message;

The base station notifies the first terminal by using a DCI in a physical downlink control channel located in a fifth scheduling unit, where the fifth scheduling unit is a scheduling unit having a first scheduling interval;

And obtaining, by the base station and the first terminal, a time domain and a frequency domain location of the predetermined set of resource elements in the first scheduling unit by using a predefined rule.

Step 202: The first terminal receives the first resource status indication information that is sent by the base station by using the physical downlink control channel, and decodes the downlink data scheduled by the physical downlink control channel according to the first resource status indication information.

Illustratively, the first terminal detects the puncturing position, and the data in the corresponding area of the puncturing position is removed for decoding in the received data, which may include:

The first terminal detects a discontinuous transmission (DTX) in a predetermined set of resource element positions in the first scheduling unit, and determines, according to the location of the DTX, that the second terminal uses the second scheduling The unit performs a punching position generated by the punching transmission in the downlink portion of the first scheduling unit, and removes the data in the corresponding position of the punching position and the DTX in the received data for decoding.

For example, determining, according to the location of the DTX, the puncturing position that the second terminal uses the second scheduling unit to perform the puncturing transmission in the downlink part of the first scheduling unit may include:

Determining a frequency domain location of the punctured portion in the downlink portion according to a frequency domain location of the resource element where the DTX is located, and determining a punctured portion of the downlink portion according to a time domain location of the resource element where the DTX is located Time domain location.

The location of the predetermined set of resource elements may be obtained by combining one or more of the following manners: the first terminal acquires the set of predetermined resource element locations configured by the base station by using an RRC message; Determining, by the first terminal, the set of predetermined resource element locations notified by the base station by DCI in a physical downlink control channel located in a fifth scheduling unit, where the fifth scheduling unit is a scheduling unit having a first scheduling interval The first terminal obtains the set of predetermined resource element locations by a predefined rule.

It should be noted that the fifth scheduling unit, the third scheduling unit, and the first scheduling unit are all one of a type of scheduling unit having a first scheduling interval. Here, the fifth scheduling unit, the third scheduling unit, and the first scheduling unit may be the same scheduling unit, or may not be the same scheduling unit.

Illustratively, the eMBB terminal has a first scheduling interval, that is, the eMBB terminal is the first terminal in the method provided by the embodiment, and the first scheduling interval includes 14 OFDM (Orthogonal Frequency Division Multiplexing). The symbols are numbered from 0 to 13, and the physical resource block (PRB) is a basic resource unit for resource allocation to the eMBB terminal, occupying 12 subcarriers in the frequency domain and 14 symbols in the time domain. The URLLC terminal has a shorter scheduling interval than the first scheduling interval, that is, the URLLC terminal is the second terminal in the method provided by this embodiment.

As shown in FIG. 8, a schematic diagram for indicating the punching position by setting the transmission power to 0 in a predetermined set of resource elements. In the schematic diagram, in slot 1, the base station sends downlink data to eMBB UE1 and eMBB UE2, and URLLC UE1 performs URLLC service transmission on the 8th and 9th symbols, and performs downlink data of eMBB UE1 and eMBB UE2. hole. It is assumed that the eMBB UE1 uses two PRBs for data transmission, and the eMBB UE2 uses one PRB for data transmission. When the downlink data of the eMBB UE1 and the eMBB UE2 are punctured by the URLLC terminal on the 8th and 9th OFDM symbols, the base station is in the The transmit power is set to 0 on a set of predetermined resource elements in the same frequency domain as the eMBB UE1 and eMBB UE2 downlink data transmission on the 7 and 10th OFDM symbols. Assume that the power of one resource element in each PRB is set to 0. For example, among the 0th to 11th resource elements in each PRB, the transmission power of the 6th resource element is set to 0, then the 7th symbol The power of two resource elements will be set to 0 in the frequency domain of the resources occupied by the eMBB UE1. In the frequency domain of the resources occupied by the eMBB UE2, the power of one resource element will be set to 0. Similarly, in the frequency domain of the resource occupied by the eMBB UE1 on the 10th symbol, the power of two resource elements will be set to 0, and there is one resource element in the frequency domain of the resource occupied by the eMBB UE2. The power will be set to zero. The locations of these resource elements are preset at the base station side and the terminal side. When eMBB UE1 and eMBB UE2 detect DTX at these corresponding positions in the downlink data received by themselves, it will know exactly that the URLLC service is punctured. The position of the downlink data is decoded, the data in the corresponding area of these locations is removed for decoding, and the downlink data performance is improved.

In slot 2, the base station sends downlink data to the eMBB UE3, and the URLLC UE2 performs URLLC service transmission on the 10th and 11th symbols, and punctured the downlink data of the eMBB UE3. It is assumed that eMBB UE3 uses 3 PRBs for data transmission. When the downlink data of eMBB UE3 is punctured by URLLC terminals on the 10th and 11th OFDM symbols, the base station is used for eMBB on the 9th and 12th OFDM symbols. The UE3 downlink data transmission sets the transmission power to 0 on a predetermined set of resource elements in the same frequency domain. Since the URLLC UE2 only punctured the upper two PRBs of the eMBB UE3 in the frequency domain, only the corresponding frequencies are needed. A set of predetermined resource element transmit power is set to 0 within the domain. Assume that the power of one resource element in each PRB is set to 0. For example, among the 0th to 11th resource elements in each PRB, the transmission power of the 6th resource element is set to 0, then the 9th symbol is Within the frequency domain of the resources occupied by the eMBB UE3, the power of two resource elements will be set to 0. Similarly, the 12th symbol has two resource elements in the frequency domain of the resources occupied by the eMBB UE3. The power will be set to zero. The locations of these resource elements are preset at the base station side and the terminal side. When the eMBB UE3 detects DTX at these corresponding locations in the downlink data received by itself, it will know exactly where the URLLC service is punctured. When decoding the downlink data, the data in the corresponding area of these locations is removed for decoding, and the downlink data performance is improved.

In slot 3, the base station sends downlink data to the eMBB UE4, and the URLLC UE2 performs URLLC service transmission on the second and third symbols, and punctifies the downlink data of the eMBB UE4, and the URLLC UE3 is in the 12th and 13th. The URLLC service is sent on the symbols, and the downlink data of the eMBB UE4 is punctured. Assume that eMBB UE4 uses 1 PRB for number According to the transmission, when the downlink data of the eMBB UE4 is punctured by the URLLC UE2 on the 2nd and 3rd OFDM symbols and the URLLC UE3 is punctured on the 12th and 13th OFDM symbols, the base station is at the 1st and 4th. The transmit power is set to zero on a set of predetermined resource elements on the OFDM symbol and on the eleventh OFDM symbol in the same frequency domain for eMBB UE4 downlink data transmission. Assume that the power of one resource element in each PRB is set to 0. For example, among the 0th to 11th resource elements in each PRB, the transmission power of the 6th resource element is set to 0, then the first symbol is Within the frequency domain of the resources occupied by the eMBB UE4, the power of one resource element will be set to 0. Similarly, the fourth symbol and the eleventh symbol are in the frequency domain range of the resources occupied by the eMBB UE4, respectively. The power of a resource element will be set to zero. The locations of these resource elements are preset at the base station side and the terminal side. When the eMBB UE3 detects DTX at these corresponding locations in the downlink data received by itself, it will know exactly where the URLLC service is punctured. When decoding the downlink data, the data in the corresponding area of these locations is removed for decoding, and the downlink data performance is improved. When the URLLC UE3 punctured the eMBB UE4, since the puncturing occurs in the last two symbols in the slot, it is only necessary to set the transmission power on a predetermined set of resource elements to 0 before puncturing.

The control information transmission method provided in this embodiment dynamically informs the eMBB terminal that the downlink data of the first scheduling interval that is not punctured by the URLLC is not required to detect the puncturing position of the URLLC in the case where the URLLC service connection exists. Thereby saving terminal power consumption. In addition, when the URLLC terminal does not exist in the connection state of the URLLC service in the cell, the eMBB terminal is dynamically notified that the location of the puncturing of the URLLC does not need to be detected, thereby saving terminal power consumption. Therefore, the control information transmission method provided in this embodiment can dynamically adapt to the change of the URLLC load in the cell, thereby rapidly changing the resources used in the puncturing mode, and allowing the terminal to perform decoding in the puncturing mode less. Save power. Since the frequency of the URLLC service is very low, in the embodiment, when the URL LC service punches the eMBB terminal service data, the base station dynamically punches the service data of each eMBB terminal at a predetermined location, so that each eMBB terminal is in itself. The location of the URLLC service is detected in the received data, which improves the transmission efficiency.

Step 201: The base station sends the first resource status indication information to the first through the physical downlink control channel. a terminal.

In a possible implementation manner, when the first resource status indication information indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in the puncturing mode, if the second terminal uses the The second scheduling unit performs puncturing transmission on the downlink part of the first scheduling unit, and the base station covers the downlink data at a predetermined position in the first scheduling unit, and sends the puncturing location information to the first terminal, if The second terminal does not use the second scheduling unit to perform puncturing transmission on the downlink part of the first scheduling unit, and sends downlink data at the predetermined location, where the puncturing location information is used to indicate The punching position.

The predetermined position is located on the last or last two OFDM symbols of the downlink part of the first scheduling unit in the time domain, and the downlink part of the first scheduling unit includes n OFDM symbols in the time domain, where , n>2, n is a positive integer.

The predetermined location may be notified to the first terminal by one or more combinations of the following manners: the base station is configured to the first terminal by using an RRC message; and the base station is located in a sixth scheduling unit Notifying the first terminal by the DCI in the physical downlink control channel, the sixth scheduling unit is a scheduling unit having a first scheduling interval; the base station and the first terminal obtaining the predetermined by a predefined rule position.

The punching location information and the downlink located in the downlink part of the first scheduling unit Data multiplexed on the physical downlink data channel, when the number of layers used for the physical downlink data channel used for the downlink data transmission in the downlink portion is greater than 1, the puncturing location information located in the predetermined location Repeat the transmission on each layer.

The puncturing location information is multiplexed with the downlink data located in the downlink part of the first scheduling unit on the physical downlink data channel, and is used by the physical downlink data channel used for the downlink data transmission in the downlink part. When the number of layers is greater than 1, and the physical downlink data channel used for the downlink data transmission in the downlink part is spatially multiplexed, the punctured location information is multiplexed with the downlink data of the highest modulation and coding mode, and is located at the The puncturing position information in the predetermined position is repeatedly transmitted on each layer to which the downlink data of the highest modulation coding scheme is mapped.

The puncturing location information is different from the power offset of the relative demodulation reference signal used by the downlink data located in the downlink portion of the first scheduling unit.

Step 202: The first terminal receives the first resource status indication information by using the physical downlink control channel, and decodes the downlink data scheduled by the physical downlink control channel according to the first resource status indication information.

The first terminal detects the punching position information at a predetermined position in the first scheduling unit, and obtains, according to the punching position information, that the second terminal uses the second scheduling unit in the first scheduling unit The downstream portion performs the punching position generated by the punching transmission, and removes the received data in the received data. The punching position and the data in the corresponding area of the position where the punching position information is located are decoded.

The predetermined position is located on the last or last two OFDM symbols of the downlink part of the first scheduling unit in the time domain, and the downlink part of the first scheduling unit includes n OFDM symbols in the time domain, where n>2, n is a positive integer.

The predetermined location may be obtained by combining one or more of the following manners: the first terminal acquires the base station to configure the predetermined location by using an RRC message; and the first terminal acquires, by the first terminal, the base station The predetermined location of the DCI notification in the physical downlink control channel in the sixth scheduling unit, the sixth scheduling unit is a scheduling unit having a first scheduling interval; the first terminal obtains the foregoing by using a predefined rule The scheduled location.

Illustratively, the first terminal detects the puncturing position, and before the data in the corresponding area of the puncturing position is removed for decoding, the method in this embodiment may further include: when used in the downlink part When the number of layers used in the physical downlink data channel for transmitting the downlink data is greater than 1, the punching position information is received on each layer in the predetermined position.

It should be noted that the sixth scheduling unit, the third scheduling unit, and the first scheduling unit are all one of a type of scheduling unit having a first scheduling interval. Here, the sixth scheduling unit, the third scheduling unit, and the first scheduling unit may be the same scheduling unit, or may not be the same scheduling unit.

Illustratively, the eMBB terminal has a first scheduling interval, which includes 14 OFDM symbols and is numbered from 0 to 13. The URLLC terminal has a shorter scheduling interval than the first scheduling interval.

As shown in FIG. 9, a schematic diagram of transmitting the punch position information to the eMBB terminal at a predetermined position. In the schematic diagram, in slot 1, the base station sends downlink data to eMBB UE1 and eMBB UE2, and URLLC UE1 performs URLLC service transmission on the 8th and 9th symbols, and performs downlink data of eMBB UE1 and eMBB UE2. hole. The base station will transmit the punctured location information to the eMBB UE1 at a predetermined location on the last symbol in the resource region allocated to the eMBB UE1, similarly, the base station will also be on the last symbol in the resource region allocated to the eMBB UE2. The punch location information is transmitted to the eMBB UE2 at a predetermined location. For each eMBB terminal, the predetermined location for transmitting the respective punctured location information is obtained by the base station and the terminal through predefined rules. When eMBB UE1 and eMBB UE2 are in the downlink data received by themselves When the punch position information is detected at these corresponding positions, it will know exactly where the URLLC service is punctured, and when decoding the downlink data, these positions and the predetermined information for transmitting the punch position will be removed. Data in the corresponding area of the location is decoded to improve downlink data performance.

In slot 2, the base station sends downlink data to the eMBB UE3, and the URLLC UE2 performs URLLC service transmission on the 10th and 11th symbols, and punctured the downlink data of the eMBB UE3. The base station transmits the puncturing location information to the eMBB UE1 at a predetermined position on the last symbol in the resource area allocated to the eMBB UE3. For each eMBB terminal, the predetermined location for transmitting the respective punctured location information is obtained by the base station and the terminal through predefined rules. When eMBB UE3 detects the punch location information at these corresponding locations in the downlink data received by itself, it will know exactly where the URLLC service is punctured, and when decoding the downlink data, these locations will be removed and The predetermined data in the corresponding area for transmitting the punching position information is decoded to improve the downlink data performance.

In slot 3, the base station sends downlink data to the eMBB UE4, and the URLLC UE2 performs URLLC service transmission on the second and third symbols, and punctifies the downlink data of the eMBB UE4, and the URLLC UE3 is in the 12th and 13th. The URLLC service is sent on the symbols, and the downlink data of the eMBB UE4 is punctured. The base station transmits the puncturing position information including all the puncturing positions to the eMBB UE 4 at a predetermined position on the last symbol in the resource area allocated to the eMBB UE 4. For each eMBB terminal, the predetermined location for transmitting the respective punctured location information is obtained by the base station and the terminal through predefined rules. When the eMBB UE4 detects the punch location information at these corresponding locations in the downlink data received by itself, it will know exactly where the URLLC service is punctured, and when decoding the downlink data, these locations will be removed and The predetermined data in the corresponding area for transmitting the punching position information is decoded to improve the downlink data performance. When the URLLC UE3 punctured the eMBB UE4, since the predetermined position for transmitting the puncturing position information is on the last OFDM symbol, the URLLC UE3 transmits the URLLC service only on the last second symbol. Or the URLLC UE3 sends the URLLC service on the last two symbols, and the eMBB terminal will not detect the punch location information.

The control information transmission method provided in this embodiment dynamically informs the eMBB terminal that the downlink data of the first scheduling interval that is not punctured by the URLLC is not required to detect the puncturing position of the URLLC in the case where the URLLC service connection exists. Thereby saving terminal power consumption. In addition, when small When there is no URLLC terminal in the connection state of the URLLC service, the eMBB terminal is dynamically notified that the location of the puncturing of the URLLC is not required, thereby saving terminal power consumption. Therefore, the control information transmission method provided in this embodiment can dynamically adapt to the change of the URLLC load in the cell, thereby rapidly changing the resources used in the puncturing mode, and allowing the terminal to perform decoding in the puncturing mode less. Save power. Since the frequency of the URLLC service is very low, in the embodiment, when the URL LC service punches the eMBB terminal service data, the base station dynamically punches the service data of each eMBB terminal at a predetermined location, so that each eMBB terminal is in itself. The location of the URLLC service is detected in the received data, which improves the transmission efficiency.

The embodiment of the present application provides a base station 30. As shown in FIG. 10, the base station 30 includes: a sending unit 301, configured to send, by using a physical downlink control channel, first resource status indication information to a first terminal, where the physical The downlink control channel is located in the third scheduling unit, and the third scheduling unit is a scheduling unit having a first scheduling interval length, where the first resource state indication information is used to indicate that downlink data scheduled by the physical downlink control channel is occupied. The resource is the resource in the puncturing mode or the resource in the normal mode, the downlink data is located in the first scheduling unit, the first scheduling unit is a scheduling unit having a first scheduling interval length, and the first terminal is A terminal having a first scheduling interval.

Illustratively, the sending unit 301 may be configured to send the first resource status indication information to the first terminal in an implicit manner by using a DCI located in the physical downlink control channel; or by being located in the physical The DCI in the downlink control channel sends the first resource status indication information to the first terminal in an explicit manner.

Exemplarily, the sending unit 301 may be configured to send the first resource status indication information to the first terminal in an explicit manner by DCI by: including 1 bit in the DCI, The resource used for indicating the downlink data scheduled by the physical downlink control channel is a resource in the puncturing mode or a resource in the normal mode.

Exemplarily, the sending unit 301 may be configured to: in the following manner, send the first resource status indication information to the first terminal in an implicit manner by DCI: scrambling the DCI by using different RNTIs, for The resource occupied by the downlink data that is scheduled to be scheduled by the physical downlink control channel is a resource in a puncturing mode or a resource in a normal mode.

Exemplarily, the base station 30 may further include: a processing unit 302;

The sending unit 301 may be further configured to send the second resource status indication information by using a physical downlink broadcast channel, where the physical downlink broadcast channel is located in a fourth scheduling unit, and the fourth scheduling unit has a first scheduling interval. Scheduling unit of length;

The processing unit 302 may be configured to, by using the second resource status indication information and the first resource status indication information, indicate that the resource occupied by the downlink data scheduled by the physical downlink control channel is in a puncturing mode. The resource or the resource in the normal mode, where the second resource status indication information is used to indicate that the downlink resource of the cell corresponding to the physical downlink broadcast channel is a resource in a puncturing mode or a resource in a normal mode.

Illustratively, the processing unit 302 may be configured to: when the base station sends the second resource status indication information by using the physical downlink broadcast channel to indicate that the downlink resource of the cell is a resource in the puncturing mode, The first resource status indication information in the physical downlink control channel indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in the puncturing mode or is normal. a resource in a mode; when the base station sends the second resource state indication information on the physical downlink broadcast channel to indicate that the downlink resource of the cell is a resource in the normal mode, in the cell corresponding to the physical downlink broadcast channel, The second resource status indication information indicates that the resource occupied by the downlink data received by the first terminal in the downlink part of the first scheduling unit is a resource in a normal mode.

Illustratively, the base station further includes: a processing unit 302, configured to: when the first resource status indication information indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in a puncturing mode, if The second terminal performs puncturing transmission on the downlink part of the first scheduling unit by using the second scheduling unit, and performs at least one of: in the first scheduling unit within one symbol after the puncturing position A set of predetermined resource elements will be used for downlink data transmission. The power sent is set to 0, and the power for downlink data transmission is set to 0 on a predetermined resource element in the first scheduling unit within one symbol before the puncturing transmission;

The sending unit 301 may be further configured to: if the second terminal does not use the second scheduling unit to perform puncturing transmission on a downlink part of the first scheduling unit, on the set of predetermined resource elements The power greater than 0 transmits downlink data.

Illustratively, at least one of the predetermined resource elements may be included in each PRB in the frequency domain within the first scheduling unit.

Exemplarily, the time domain and the frequency domain location of the set of predetermined resource elements in the first scheduling unit may be notified to the first terminal by one or more combination of the following manners: configured by using an RRC message And the first terminal is notified by the DCI in the physical downlink control channel located in the fifth scheduling unit, where the fifth scheduling unit is a scheduling unit having a first scheduling interval; the first terminal The time domain and frequency domain locations of the set of predetermined resource elements in the first scheduling unit are obtained by predefined rules.

Illustratively, the sending unit 301 may be configured to: when the first resource status indication information indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in a puncturing mode, if the The second terminal uses the second scheduling unit to perform puncturing transmission on the downlink part of the first scheduling unit, overwrites downlink data in a predetermined position in the first scheduling unit, and sends punctured location information to the first a terminal; if the second terminal does not use the second scheduling unit to perform puncturing transmission in a downlink portion of the first scheduling unit, transmitting downlink data at the predetermined location, where the puncturing location information Used to indicate the punching position.

Illustratively, the predetermined location is located on the last or last two OFDM symbols of the downlink part of the first scheduling unit in the time domain, and the downlink part of the first scheduling unit includes n OFDM symbols in the time domain. Where n>2, n is a positive integer.

Exemplarily, the predetermined location may be notified to the first terminal by one or more combinations of: configuring, by the RRC message, the first terminal; by physical downlink control located in the sixth scheduling unit The first terminal is notified by the DCI in the channel, and the sixth scheduling unit is a scheduling unit having a first scheduling interval; the first terminal obtains the predetermined location by a predefined rule.

Illustratively, the puncturing position information is located in a downlink portion of the first scheduling unit The downlink data is multiplexed on the physical downlink data channel, and when the number of layers used for the physical downlink data channel used for the downlink data transmission in the downlink part is greater than 1, the punching location located in the predetermined location Information is sent repeatedly on each layer.

Illustratively, the puncturing location information is multiplexed with downlink data located in a downlink portion of the first scheduling unit on a physical downlink data channel, and is used for physical downlink of the downlink data transmission in the downlink portion. When the number of layers used by the data channel is greater than 1, and the physical downlink data channel used for the downlink data transmission in the downlink part is spatially multiplexed, the punctured location information and the downlink data of the highest modulation and coding mode are complexed. The puncturing position information located in the predetermined position is repeatedly transmitted on each layer to which the downlink data of the highest modulation coding mode is mapped.

Illustratively, the puncturing location information is different from the power offset of the relative demodulation reference signal employed by the downlink data located in the downlink portion of the first scheduling unit.

It should be noted that, in practical applications, the sending unit 301 may be implemented by a transmitter located on a base station, and the processing unit 302 may be implemented by a processor located on a base station, and the base station may further include a memory storing processor executable instructions. .

For the understanding of the base station provided in this embodiment, reference may be made to the description of the foregoing control information transmission method, and details are not described herein again.

The base station provided in this embodiment dynamically informs the eMBB terminal that the downlink data with the first scheduling interval that is not punctured by the URLLC does not need to detect the punching position of the URLLC in the case where the URLLC service connection exists, thereby saving the terminal. Power consumption. In addition, when the URLLC terminal does not exist in the connection state of the URLLC service in the cell, the eMBB terminal is dynamically notified that the location of the puncturing of the URLLC does not need to be detected, thereby saving terminal power consumption. Therefore, the base station provided in this embodiment can dynamically adapt to the change of the URLLC load in the cell, thereby rapidly changing the resources used in the puncturing mode, and allowing the terminal to perform decoding in the puncturing mode less, thereby saving power consumption. . Since the frequency of the URLLC service is very low, in the embodiment, when the URL LC service punches the eMBB terminal service data, the base station dynamically punches the service data of each eMBB terminal at a predetermined location, so that each eMBB terminal is in itself. The location of the URLLC service is detected in the received data, which improves the transmission efficiency.

The embodiment of the present application provides a terminal 40. As shown in FIG. 11, the terminal 40 is a terminal having a first scheduling interval, and the terminal 40 includes: a receiving unit 401, and a processing unit 402, where

The receiving unit 401 is configured to receive first resource status indication information that is sent by the base station by using a physical downlink control channel, where the physical downlink control channel is located in a third scheduling unit, and the third scheduling unit is configured to have a first scheduling a scheduling unit of the interval length, where the first resource status indication information is used to indicate that the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in a puncturing mode or a resource in a normal mode, where the downlink data is located. In the first scheduling unit, the first scheduling unit is a scheduling unit having a first scheduling interval length;

The processing unit 402 is configured to decode downlink data scheduled by the physical downlink control channel according to the first resource status indication information.

Illustratively, the processing unit 402 may be configured to select a puncturing mode when the first resource status indication information indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in the puncturing mode. Decoding, the decoding in the puncturing mode includes: the first terminal detects a puncturing position, and removes data in the corresponding area of the puncturing position in the received data for decoding; when the first When the resource status indication information indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in the normal mode, the decoding in the normal mode is selected.

Illustratively, the receiving unit 401 may be configured to receive the first resource status indication information that is sent by the base station in an implicit manner by using a DCI located in the physical downlink control channel; or, receive the base station The first resource status indication information that is sent in an explicit manner by DCI located in the physical downlink control channel.

Illustratively, the first resource status indication information that is notified by the DCI in an explicit manner may include: 1 bit in the DCI, used to indicate resources occupied by downlink data scheduled by the physical downlink control channel. A resource in punch mode or a resource in normal mode.

Exemplarily, the first resource status indication information that is notified by the DCI in an implicit manner may be The method includes: scrambling the DCI information by using different RNTIs, and indicating that the resources occupied by the downlink data scheduled by the physical downlink control channel are resources in a puncturing mode or resources in a normal mode.

Illustratively, the receiving unit 401 may be configured to receive second resource status indication information that is sent by the base station by using a physical downlink broadcast channel, where the physical downlink broadcast channel is located in a fourth scheduling unit, where the fourth The scheduling unit is a scheduling unit having a first scheduling interval length;

The processing unit 402 may be configured to decode, according to the second resource status indication information and the first resource status indication information, downlink data scheduled by the physical downlink control channel, where the second resource status The indication information is used to indicate that the downlink resource of the cell corresponding to the physical downlink broadcast channel is a resource in a puncturing mode or a resource in a normal mode.

Illustratively, the processing unit 402 may be configured to: when the base station sends, by using the physical downlink broadcast channel, the second resource status indication information, indicating that the downlink resource of the cell is a resource in a puncturing mode, Decoding, by the base station, the downlink data scheduled by the physical downlink control channel, by using the first resource status indication information located in the physical downlink control channel, in the cell corresponding to the physical downlink broadcast channel; When the second resource state indication information is sent by the physical downlink broadcast channel to indicate that the downlink resource of the cell is a resource in the normal mode, in a cell corresponding to the physical downlink broadcast channel, in a downlink part of the first scheduling unit The received downlink data is decoded in the normal mode.

Illustratively, as shown in FIG. 12, the terminal 40 may further include: a determining unit 403 configured to detect discontinuous transmission (DTX) on a predetermined set of resource element positions in the first scheduling unit, according to Determining, by the second terminal, a punching position generated by the second terminal by using the second scheduling unit to perform punching transmission in a downlink portion of the first scheduling unit;

The processing unit 402 is configured to remove the data in the corresponding location of the puncturing position and the DTX in the received data for decoding.

Illustratively, the determining unit 403 may be configured to determine, according to a frequency domain location of the resource element where the DTX is located, a frequency domain location of the punctured portion in the downlink portion, according to a time domain of the resource element where the DTX is located. Position, determining a time domain position of the punched portion in the down portion.

Illustratively, the set of predetermined resource element locations may be obtained by combining one or more of the following manners: acquiring the set of predetermined resource element bits configured by the base station by using an RRC message. Obtaining, by the base station, the set of predetermined resource element locations notified by DCI in a physical downlink control channel located in a fifth scheduling unit, where the fifth scheduling unit is a scheduling unit having a first scheduling interval; A predefined set of rules obtains the set of predetermined resource element locations.

Illustratively, the processing unit 402 may be configured to detect the punching position information at a predetermined position in the first scheduling unit, and obtain, according to the punching position information, the second terminal adopting the second scheduling The unit performs a punching position generated by the punching transmission in the downlink portion of the first scheduling unit, and removes the data in the corresponding area of the punching position and the position where the punching position information is located in the received data for decoding.

Illustratively, the predetermined location is located on the last or last two OFDM symbols of the downlink part of the first scheduling unit in the time domain, and the downlink part of the first scheduling unit includes n OFDM symbols in the time domain. , where n>2, n is a positive integer.

Illustratively, the predetermined location is obtained by combining one or more of the following manners: acquiring, by the base station, the predetermined location by using an RRC message; acquiring the physical location of the base station by being located in a sixth scheduling unit The predetermined location of the DCI notification in the downlink control channel, the sixth scheduling unit is a scheduling unit having a first scheduling interval; the predetermined location is obtained by a predefined rule.

Exemplarily, the receiving unit 401 may be further configured to: when the number of layers used for the physical downlink data channel used for the downlink data transmission in the downlink part is greater than 1, in each of the predetermined locations Receiving the punching position information.

For example, the receiving unit 401 may be further configured to use, when the physical downlink data channel used for downlink data transmission in the downlink part, the number of layers is greater than 1, and for the downlink data transmission in the downlink part. When the physical downlink data channel is spatially multiplexed, the puncturing position information is received on each layer to which the downlink data of the highest modulation coding scheme is mapped within the predetermined location.

It should be noted that, in an actual application, the receiving unit 401 may be implemented by a receiver located on the terminal, and the processing unit 402 and the determining unit 403 may be implemented by a processor located on the terminal, and the terminal may further include a processor. The memory that executes the instructions.

For the understanding of the terminal provided in this embodiment, reference may be made to the description of the foregoing control information transmission method, and details are not described herein again.

In the terminal provided by this embodiment, in the case that there is a URLLC service connection, for the downlink data having the first scheduling interval that is not punctured by the URLLC, the eMBB terminal can dynamically learn that the punching position of the URLLC does not need to be detected, thereby saving Terminal power consumption. In addition, when there is no connection state of the URLLC service in the cell, the eMBB terminal can dynamically learn that the punch location of the URLLC does not need to be detected, thereby saving terminal power consumption. Therefore, the terminal provided in this embodiment can dynamically adapt to the change of the URLLC load in the cell, thereby rapidly changing the resources used in the puncturing mode, and allowing the terminal to perform decoding in the puncturing mode less, thereby saving power consumption. . Since the frequency of occurrence of the URLLC service is very low, the present invention dynamically permeates the service data of each eMBB terminal at a predetermined location by the base station in the URLLC service, so that each eMBB terminal receives itself. The location of the URLLC service is detected in the data, which improves the transmission efficiency.

The embodiment of the present application provides a base station. As shown in FIG. 13, the base station 50 may include: a transmitter 501 configured to send first resource status indication information to the first terminal by using a physical downlink control channel, where the physical downlink The control channel is located in the third scheduling unit, and the third scheduling unit is a scheduling unit having a first scheduling interval length, where the first resource status indication information is used to indicate that the downlink data scheduled by the physical downlink control channel is occupied by The resource is the resource in the puncturing mode or the resource in the normal mode, the downlink data is located in the first scheduling unit, the first scheduling unit is a scheduling unit having a first scheduling interval length, and the first terminal has The terminal of the first scheduling interval.

Exemplarily, the transmitter 501 may be configured to send the first resource status indication information to the first terminal in an implicit manner by using a DCI located in the physical downlink control channel; or by being located in the physical The DCI in the downlink control channel sends the first resource in an explicit manner The status indication information is sent to the first terminal.

Illustratively, the sending, by the DCI, the first resource status indication information to the first terminal in an explicit manner includes: including, in the DCI, 1 bit, used to indicate that downlink data scheduled by the physical downlink control channel is occupied. The resources are resources in the punch mode or resources in the normal mode.

For example, the sending, by the DCI, the first resource status indication information to the first terminal in an implicit manner includes: scrambling the DCI by using different RNTIs, and indicating the physical downlink control channel scheduling. The resources occupied by the downlink data are resources in the puncturing mode or resources in the normal mode.

Exemplarily, the base station 50 may further include: a processor 502;

The transmitter 501 is further configured to send the second resource status indication information by using a physical downlink broadcast channel, where the physical downlink broadcast channel is located in a fourth scheduling unit, and the fourth scheduling unit is configured to have a first scheduling interval length. Scheduling unit;

The processor 502 is configured to, by using the second resource state indication information and the first resource state indication information, indicate that the resource occupied by the downlink data scheduled by the physical downlink control channel is in a puncturing mode. The resource or the resource in the normal mode, where the second resource status indication information is used to indicate that the downlink resource of the cell corresponding to the physical downlink broadcast channel is a resource in a puncturing mode or a resource in a normal mode.

Illustratively, the processor 502 may be configured to: when the base station sends the second resource status indication information by using the physical downlink broadcast channel to indicate that the downlink resource of the cell is a resource in a puncturing mode, The first resource status indication information in the physical downlink control channel indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in the puncturing mode or is normal. a resource in a mode; when the base station sends the second resource state indication information on the physical downlink broadcast channel to indicate that the downlink resource of the cell is a resource in the normal mode, in the cell corresponding to the physical downlink broadcast channel, The second resource status indication information indicates that the resource occupied by the downlink data received by the first terminal in the downlink part of the first scheduling unit is a resource in a normal mode.

Illustratively, the base station 50 may further include: a processor 502, configured to: when the first resource status indication information indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in a puncturing mode If the second terminal adopts the second scheduling unit at the first Performing a puncturing transmission on a downlink portion of the scheduling unit, performing at least one of: setting a power setting for downlink data transmission on a predetermined set of resource elements in the first scheduling unit within one symbol after the puncturing location 0, the power for downlink data transmission is set to 0 on a predetermined resource element in the first scheduling unit within one symbol before the puncturing transmission;

The transmitter 501 may be further configured to: if the second terminal does not use the second scheduling unit to perform puncturing transmission on a downlink part of the first scheduling unit, on the set of predetermined resource elements The power greater than 0 transmits downlink data.

Illustratively, the transmitter 501 may be configured to: when the first resource status indication information indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in a puncturing mode, if the The second terminal uses the second scheduling unit to perform puncturing transmission on the downlink part of the first scheduling unit, overwrites downlink data in a predetermined position in the first scheduling unit, and sends punctured location information to the first a terminal; if the second terminal does not use the second scheduling unit to perform puncturing transmission in a downlink portion of the first scheduling unit, transmitting downlink data at the predetermined location, where the puncturing location information Used to indicate the punching position.

Exemplarily, the predetermined location may be notified to the first terminal by one or more combinations of: configuring, by the RRC message, the first terminal; by physical downlink control located in the sixth scheduling unit Notifying the first terminal by the DCI in the channel, the sixth scheduling unit is a scheduling unit having a first scheduling interval; the first terminal obtaining the reservation by a predefined rule s position.

Illustratively, the puncturing location information is multiplexed with downlink data located in a downlink portion of the first scheduling unit on a physical downlink data channel, and is used for physical downlink of the downlink data transmission in the downlink portion. When the number of layers used by the data channel is greater than 1, the punch position information located in the predetermined position is repeatedly transmitted on each layer.

The embodiment of the present application provides a terminal 60. As shown in FIG. 14, the terminal 60 is a terminal having a first scheduling interval, and the terminal 60 includes a receiver 601 and a processor 602.

The receiver 601 is configured to receive a first resource that is sent by the base station by using a physical downlink control channel. The source state indication information, where the physical downlink control channel is located in a third scheduling unit, the third scheduling unit is a scheduling unit having a first scheduling interval length, and the first resource state indication information is used to indicate the The resources occupied by the downlink data of the physical downlink control channel are the resources in the puncturing mode or the resources in the normal mode, where the downlink data is located in the first scheduling unit, and the first scheduling unit has the length of the first scheduling interval. Scheduling unit;

The processor 602 is configured to decode downlink data scheduled by the physical downlink control channel according to the first resource status indication information.

Illustratively, the processor 602 may be configured to select a puncturing mode when the first resource status indication information indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in a puncturing mode. Decoding, the decoding in the puncturing mode includes: the first terminal detects a puncturing position, and removes data in the corresponding area of the puncturing position in the received data for decoding; when the first When the resource status indication information indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in the normal mode, the decoding in the normal mode is selected.

Illustratively, the receiver 601 may be configured to receive, by the base station, the first resource status indication information that is implicitly notified by using a DCI located in the physical downlink control channel; or, receive the base station The first resource status indication information notified in an explicit manner by a DCI located in the physical downlink control channel.

Illustratively, the first resource status indication information that is notified by the DCI in an implicit manner may include: scrambling the DCI by using different RNTIs to indicate the physical downlink control The resources occupied by the downlink data scheduled by the channel are resources in the puncturing mode or resources in the normal mode.

Illustratively, the receiver 601 may be configured to receive second resource status indication information that is sent by the base station by using a physical downlink broadcast channel, where the physical downlink broadcast channel is located in a fourth scheduling unit, where the fourth The scheduling unit is a scheduling unit having a first scheduling interval length;

The processor 602 may be configured to decode, according to the second resource state indication information and the first resource state indication information, downlink data scheduled by the physical downlink control channel, where the second resource The status indication information is used to indicate that the downlink resource of the cell corresponding to the physical downlink broadcast channel is a resource in a puncturing mode or a resource in a normal mode.

Illustratively, the processor 602 may be configured to: when the base station sends the second resource status indication information by using the physical downlink broadcast channel to indicate that the downlink resource of the cell is a resource in a puncturing mode, Decoding, by the base station, the downlink data scheduled by the physical downlink control channel, by using the first resource status indication information located in the physical downlink control channel, in the cell corresponding to the physical downlink broadcast channel; When the second resource state indication information is sent by the physical downlink broadcast channel to indicate that the downlink resource of the cell is a resource in the normal mode, in a cell corresponding to the physical downlink broadcast channel, in a downlink part of the first scheduling unit The received downlink data is decoded in the normal mode.

Illustratively, the processor 602 may be configured to detect DTX on a predetermined set of resource element locations in the first scheduling unit, and determine, according to the location of the DTX, the second terminal to use the second scheduling unit a punching position generated by the punching transmission of the downlink portion of the first scheduling unit;

The processor 602 may be configured to remove data in the corresponding location of the punctured location and the location of the DTX in the received data for decoding.

Illustratively, the processor 602 may be configured to determine a frequency domain location of the punctured portion in the downlink part according to a frequency domain location of the resource element where the DTX is located, according to a time domain of the resource element where the DTX is located. Position, determining a time domain position of the punched portion in the down portion.

Illustratively, the set of predetermined resource element locations may be obtained by combining one or more of the following manners: acquiring the set of predetermined resource element locations configured by the base station by using an RRC message; acquiring the base station Passing through the DCI pass in the physical downlink control channel located in the fifth scheduling unit Knowing the set of predetermined resource element locations, the fifth scheduling unit is a scheduling unit having a first scheduling interval; obtaining the set of predetermined resource element locations by a predefined rule.

Illustratively, the processor 602 may be configured to detect the punch location information at a predetermined position in the first scheduling unit, and obtain, according to the punch location information, the second terminal adopts the second schedule The unit performs a punching position generated by the punching transmission in the downlink portion of the first scheduling unit, and removes the data in the corresponding area of the punching position and the position where the punching position information is located in the received data for decoding.

Illustratively, the predetermined location may be obtained by combining one or more of the following manners: acquiring, by the base station, the predetermined location by using an RRC message; acquiring, by the base station, by being located in a sixth scheduling unit The predetermined location of the DCI notification in the physical downlink control channel, the sixth scheduling unit is a scheduling unit having a first scheduling interval; the predetermined location is obtained by a predefined rule.

Exemplarily, the receiver 601 may be further configured to: when the number of layers used by the physical downlink data channel for the downlink data transmission in the downlink part is greater than 1, in each of the predetermined locations Receiving the punching position information.

Exemplarily, the receiver 601 may be further configured to use, when the physical downlink data channel used for downlink data transmission in the downlink part, has a layer number greater than 1, and to use the downlink data transmission in the downlink part. When the physical downlink data channel is spatially multiplexed, the puncturing position information is received on each layer to which the downlink data of the highest modulation coding scheme is mapped within the predetermined location.

In the terminal provided by this embodiment, in the case that there is a URLLC service connection, for the downlink data having the first scheduling interval that is not punctured by the URLLC, the eMBB terminal can dynamically learn that the punching position of the URLLC does not need to be detected, thereby saving Terminal power consumption. In addition, when there is no connection state of the URLLC service in the cell, the eMBB terminal can dynamically learn that the punch location of the URLLC does not need to be detected, thereby saving terminal power consumption. Therefore, this is The terminal provided by the embodiment can dynamically adapt to the change of the URLLC load in the cell dynamically, thereby rapidly changing the resources used in the puncturing mode, so that the terminal can perform decoding in the puncturing mode less, thereby saving power consumption. Since the frequency of the URLLC service is very low, in the embodiment, when the URL LC service punches the eMBB terminal service data, the base station dynamically punches the service data of each eMBB terminal at a predetermined location, so that each eMBB terminal is in itself. The location of the URLLC service is detected in the received data, which improves the transmission efficiency.

The embodiment of the present application further provides a computer readable storage medium storing computer executable instructions, which are implemented by the processor to implement the above control information transmission method applied to a base station.

The embodiment of the present application further provides a computer readable storage medium storing computer executable instructions, which are implemented by the processor to implement the above control information transmission method applied to the terminal.

Those skilled in the art will appreciate that embodiments of the present application can be provided as a method, system, or computer program product. Accordingly, the application can take the form of a hardware embodiment, a software embodiment, or an embodiment in combination with software and hardware. Moreover, the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.

The present application is described with reference to at least one of the flowcharts and block diagrams of the method, the device (system), and the computer program product according to the present embodiment. It shall be understood that at least one of each of the processes and blocks of at least one of the flowcharts and the block diagrams, and the flow of the at least one of the flowcharts and the block diagrams, or the combination of the blocks, or the flow and the blocks, can be implemented by the computer program instructions. . These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. A device that implements at least one of the following: a function specified in a flow or a flow of a flowchart, a block or a plurality of blocks in a block diagram.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements at least one of the following: a function specified in a flow or a flow of a flowchart, a block or a plurality of blocks in a block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing at least one of the functions specified in a flow or a flow of a flowchart, a block or a plurality of blocks in a block diagram.

Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and functional blocks or units of the methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules or units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical The components work together. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on a computer readable medium, which may include computer storage media (or non-transitory media) and communication media (or transitory media). As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and nonvolatile, implemented in any method or technology for storing information, such as computer readable instructions, data structures, program modules or other data. Sex, removable and non-removable media. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridge, magnetic tape, magnetic disk storage or other magnetic storage device, or may Any other medium used to store the desired information and that can be accessed by the computer. Moreover, it is well known to those skilled in the art that communication media typically includes computer readable instructions, data structures, program modules, or other data in a modulated data signal, such as a carrier wave or other transport mechanism, and can include any information delivery media. .

The above is only the preferred embodiment of the present application and is not intended to limit the scope of the present application.

Industrial applicability

The embodiment of the present application provides a control information transmission method, a base station, and a terminal, which saves power consumption of the terminal and improves transmission efficiency.

Claims

A control information transmission method includes:

The base station sends the first resource status indication information to the first terminal (101, 201) through the physical downlink control channel, where the physical downlink control channel is located in the third scheduling unit, and the third scheduling unit has the first scheduling interval. a scheduling unit of the length, where the first resource status indication information is used to indicate that the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in a puncturing mode or a resource in a normal mode, where the downlink data is located in a In a scheduling unit, the first scheduling unit is a scheduling unit having a first scheduling interval length, and the first terminal is a terminal having a first scheduling interval.
The method according to claim 1, wherein the resources in the puncturing mode are resources shared by the first terminal and the second terminal, and the second terminal has a shorter interval than the first scheduling interval. Dispatching the terminal, when the base station uses the resources in the puncturing mode to send data to the first terminal, allowing the base station to punct the resources in the puncturing mode, at the punching position Transmitting, to the second terminal, a second scheduling unit, where the second scheduling unit is a scheduling unit having a shorter scheduling interval length than the first scheduling interval, wherein the punching location is according to the second terminal And adopting, by the second scheduling unit, a location generated by the punch transmission in the downlink portion of the first scheduling unit.
The method according to claim 1, wherein the transmitting, by the base station, the first resource status indication information to the first terminal by using the physical downlink control channel, includes:

The base station sends the first resource status indication information to the first terminal in an implicit manner by using downlink control information DCI located in the physical downlink control channel;

Or the base station sends the first resource status indication information to the first terminal in an explicit manner by using downlink control information DCI located in the physical downlink control channel.
The method according to claim 3, wherein the base station sends the first resource status indication information to the first terminal in an explicit manner by using downlink control information DCI located in the physical downlink control channel, including :

The downlink control information DCI includes a 1-bit bit, and is used to indicate that the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in a puncturing mode or a resource in a normal mode.
The method according to claim 3, wherein the base station sends the first resource status indication information to the first terminal in an implicit manner by using downlink control information DCI located in the physical downlink control channel, including :

The downlink control information DCI is scrambled by using different radio network temporary identifiers (RNTIs) to indicate that the resources occupied by the downlink data scheduled by the physical downlink control channel are resources in the puncturing mode or resources in the normal mode.
The method according to claim 1, further comprising: the base station transmitting, by using a physical downlink broadcast channel, second resource status indication information (103), wherein the physical downlink broadcast channel is located in a fourth scheduling unit, where The fourth scheduling unit is a scheduling unit having a first scheduling interval length, and the base station indicates, by using the second resource status indication information and the first resource status indication information, the downlink of the physical downlink control channel scheduling. The resource occupied by the data is the resource in the puncturing mode or the resource in the normal mode, and the second resource state indication information is used to indicate that the downlink resource of the cell corresponding to the physical downlink broadcast channel is in the puncturing mode. Resources or resources in normal mode.
The method according to claim 6, wherein the base station, by combining the second resource status indication information and the first resource status indication information, indicates resources occupied by downlink data scheduled by the physical downlink control channel. For resources in puncturing mode or resources in normal mode, include:

When the base station sends the second resource status indication information by the physical downlink broadcast channel to indicate that the downlink resource of the cell is a resource in the puncturing mode, in the cell corresponding to the physical downlink broadcast channel, the base station passes the And the first resource status indication information in the physical downlink control channel, where the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in a puncturing mode or a resource in a normal mode;

When the base station sends the second resource status indication information on the physical downlink broadcast channel to indicate that the downlink resource of the cell is a resource in the normal mode, the base station passes the second resource in the cell corresponding to the physical downlink broadcast channel. The status indication information indicates that the resource occupied by the downlink data received by the first terminal in the downlink part of the first scheduling unit is a resource in a normal mode.
The method of claim 2, the method further comprising:

When the first resource status indication information indicates the downlink number of the physical downlink control channel scheduling According to the resource occupied by the puncturing mode, if the second terminal uses the second scheduling unit to perform puncturing transmission on the downlink part of the first scheduling unit, the base station performs at least one of the following : setting the power for downlink data transmission to 0 on a predetermined set of resource elements in the first scheduling unit within one symbol after the puncturing position, within a symbol before the puncturing transmission Setting a power for downlink data transmission to 0 on a predetermined resource element in the first scheduling unit; if the second terminal does not use the second scheduling unit to perform puncturing in a downlink portion of the first scheduling unit Transmission, transmitting downlink data at a power greater than zero on the set of predetermined resource elements.
The method according to claim 8, wherein at least one of said predetermined resource elements is included in each physical resource block PRB in the frequency domain within said first scheduling unit.
The method of claim 8 wherein the time domain and frequency domain locations of said set of predetermined resource elements in said first scheduling unit are notified to said first terminal by one or more of the following combinations :

The base station is configured to the first terminal by using a radio resource control RRC message;

The base station notifies the first terminal by using downlink control information DCI in a physical downlink control channel located in the fifth scheduling unit, where the fifth scheduling unit is a scheduling unit having a first scheduling interval;

And obtaining, by the base station and the first terminal, a time domain and a frequency domain location of the predetermined set of resource elements in the first scheduling unit by using a predefined rule.
The method of claim 2, the method further comprising:

When the first resource status indication information indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in the puncturing mode, if the second terminal uses the second scheduling unit in the a downlink portion of a scheduling unit performs puncturing transmission, and the base station covers downlink data at a predetermined position in the first scheduling unit, and sends punctured location information to the first terminal, if the second terminal does not adopt the The second scheduling unit performs puncturing transmission in a downlink portion of the first scheduling unit, and transmits downlink data at the predetermined position, wherein the puncturing position information is used to indicate the puncturing position.
The method of claim 11 wherein said predetermined location is located in the time domain On the last or last two orthogonal frequency division multiplexing OFDM symbols of the downlink part of the first scheduling unit, the downlink part of the first scheduling unit includes n OFDM symbols in the time domain, where n>2, n Is a positive integer.
The method of claim 11 wherein said predetermined location is notified to said first terminal by one or more of the following:

The base station is configured to the first terminal by using an RRC message;

The base station notifies the first terminal by using downlink control information DCI in a physical downlink control channel located in a sixth scheduling unit, where the sixth scheduling unit is a scheduling unit having a first scheduling interval;

The base station and the first terminal obtain the predetermined location by a predefined rule.
The method of claim 11, wherein the puncturing location information is multiplexed with downlink data located in a downlink portion of the first scheduling unit on a physical downlink data channel, when used in the downlink portion When the number of layers used for the physical downlink data channel in which the downlink data is transmitted is greater than 1, the puncturing position information located in the predetermined position is repeatedly transmitted on each layer.
The method of claim 11, wherein the puncturing location information is multiplexed with downlink data located in a downlink portion of the first scheduling unit on a physical downlink data channel, when used in the downlink portion When the physical downlink data channel used for downlink data transmission uses a layer number greater than 1, and the physical downlink data channel used for the downlink data transmission in the downlink portion performs space division multiplexing, the puncturing position information and the highest modulation The downlink data of the coding mode is multiplexed, and the punctured location information located in the predetermined location is repeatedly transmitted on each layer to which the downlink data of the highest modulation coding scheme is mapped.
The method of claim 11 wherein said puncturing location information is different from a power offset of a relative demodulation reference signal employed by downlink data located in a downlink portion of said first scheduling unit.
A control information transmission method includes:

The first terminal receives the first resource status indication information that is sent by the base station by using the physical downlink control channel, and decodes the downlink data scheduled by the physical downlink control channel according to the first resource status indication information (102, 202), where The physical downlink control channel is located in a third scheduling unit, The third scheduling unit is a scheduling unit having a first scheduling interval length, where the first resource status indication information is used to indicate that resources occupied by downlink data scheduled by the physical downlink control channel are resources in a puncturing mode or In the normal mode, the downlink data is located in the first scheduling unit, and the first scheduling unit is a scheduling unit having a first scheduling interval length.
The method according to claim 17, wherein the resources in the puncturing mode are resources shared by the first terminal and the second terminal, and the second terminal has a shorter interval than the first scheduling interval. Dispatching the terminal, when the first terminal receives the data transmission by the base station by using the resource in the puncturing mode, allowing the base station to punct the resource, and sending the second to the second terminal at the puncturing position a scheduling unit, the second scheduling unit is a scheduling unit having a shorter scheduling interval length than the first scheduling interval, wherein the puncturing location is based on the second terminal adopting the second scheduling unit The downstream portion of the first scheduling unit performs a location where the puncturing transmission is generated.
The method according to claim 18, wherein the first terminal decodes the downlink data scheduled by the physical downlink control channel according to the first resource status indication information, including:

When the first resource status indication information indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in the puncturing mode, the first terminal selects the decoding in the puncturing mode, and the playing The decoding in the hole mode includes: the first terminal detects a punching position, and removes data in the corresponding area of the punching position in the received data for decoding;

When the first resource status indication information indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in the normal mode, the first terminal selects decoding in the normal mode.
The method according to claim 17, wherein the first terminal receives the first resource status indication information that is sent by the base station by using the physical downlink control channel, and includes:

Receiving, by the first terminal, the first resource status indication information that is notified by the base station in an implicit manner by using downlink control information DCI located in the physical downlink control channel;

Or the first terminal receives the first resource status indication information that is sent by the base station in an explicit manner by using downlink control information DCI located in the physical downlink control channel.
The method of claim 17 further comprising:

Receiving, by the first terminal, a second resource status that is sent by the base station by using a physical downlink broadcast channel Instructing information (104), wherein the physical downlink broadcast channel is located in a fourth scheduling unit, and the fourth scheduling unit is a scheduling unit having a first scheduling interval length;

Decoding, by the first terminal, the downlink data scheduled by the physical downlink control channel according to the second resource state indication information and the first resource state indication information, where the second resource status indication The information is used to indicate that the downlink resource of the cell corresponding to the physical downlink broadcast channel is a resource in a puncturing mode or a resource in a normal mode.
The method according to claim 19, wherein the first terminal detects a puncturing position, and the data in the corresponding area of the puncturing position is removed in the received data for decoding, including:

The first terminal detects discontinuous transmission of DTX on a predetermined set of resource element positions in the first scheduling unit, and determines, according to the location of the DTX, that the second terminal uses the second scheduling unit in the A downlink portion of a scheduling unit performs a puncturing position generated by puncturing transmission, and the data in the corresponding location of the puncturing position and the position of the DTX is removed in the received data for decoding.
The method according to claim 22, wherein the determining, according to the location of the DTX, the punching position of the second terminal by using the second scheduling unit to perform punching transmission in a downlink portion of the first scheduling unit ,include:

Determining a frequency domain location of the punctured portion in the downlink portion according to a frequency domain location of the resource element where the DTX is located, and determining a punctured portion of the downlink portion according to a time domain location of the resource element where the DTX is located Time domain location.
The method according to claim 22, wherein the set of predetermined resource element positions are obtained by one or more combination of the following manners: the first terminal acquires the one configured by the base station by using an RRC message a predetermined resource element location of the group; the first terminal acquires the set of predetermined resource element locations notified by the base station by downlink control information DCI located in a physical downlink control channel in a fifth scheduling unit, the fifth The scheduling unit is a scheduling unit having a first scheduling interval; the first terminal obtains the set of predetermined resource element locations by a predefined rule.
The method according to claim 19, wherein the first terminal detects a puncturing position, and the data in the corresponding area of the puncturing position is removed in the received data for decoding, including:

The first terminal detects the punching position information at a predetermined position in the first scheduling unit, and obtains, according to the punching position information, the second terminal adopts the second scheduling unit at the first The downstream part of the scheduling unit performs a punching position generated by the punching transmission, and removes the data in the corresponding area of the punching position and the position where the punching position information is located in the received data for decoding.
The method according to claim 25, wherein the first terminal detects a punching position, and before the data in the corresponding area of the punched position is removed for decoding in the received data, the method further comprises: when used for the When the number of layers used by the physical downlink data channel for downlink data transmission in the downlink portion is greater than 1, the punch location information is received on each layer in the predetermined location.
The method of claim 25, wherein the first terminal detects the puncturing position, and before the data in the corresponding area of the puncturing position is removed for decoding, the method further includes:

When the number of layers used for the physical downlink data channel used for downlink data transmission in the downlink part is greater than 1, and the physical downlink data channel used for the downlink data transmission in the downlink part is spatially multiplexed, The puncturing position information is received on each layer to which the downlink data of the highest modulation coding mode is mapped within the predetermined location.
A base station, comprising: a sending unit (301) configured to send first resource status indication information to a first terminal by using a physical downlink control channel, where the physical downlink control channel is located in a third scheduling unit, the third The scheduling unit is a scheduling unit having a first scheduling interval length, where the first resource status indication information is used to indicate that resources occupied by downlink data scheduled by the physical downlink control channel are resources in a puncturing mode or in a normal mode. The downlink data is located in the first scheduling unit, the first scheduling unit is a scheduling unit having a first scheduling interval length, and the first terminal is a terminal having a first scheduling interval.
The base station according to claim 28, wherein resources in the puncturing mode are resources shared by the first terminal and the second terminal, and the second terminal has a shorter interval than the first scheduling interval. Dispatching the terminal, when the base station uses the resources in the puncturing mode to send data to the first terminal, allowing the base station to punct the resources in the puncturing mode, at the punching position Transmitting, to the second terminal, a second scheduling unit, where the second scheduling unit is a scheduling unit having a shorter scheduling interval length than the first scheduling interval, wherein the punching location is according to the second terminal And adopting, by the second scheduling unit, a location generated by the punch transmission in the downlink portion of the first scheduling unit.
The base station according to claim 28, the base station further comprising: a processing unit (302);

The sending unit (301) is further configured to send the second resource by using a physical downlink broadcast channel. Status indication information, where the physical downlink broadcast channel is located in a fourth scheduling unit, and the fourth scheduling unit is a scheduling unit having a first scheduling interval length;

The processing unit (302) is configured to indicate, by using the second resource state indication information and the first resource state indication information, that the resource occupied by the downlink data scheduled by the physical downlink control channel is a puncturing mode. The resource in the normal mode or the resource in the normal mode, where the second resource state indication information is used to indicate that the downlink resource of the cell corresponding to the physical downlink broadcast channel is a resource in a puncturing mode or a resource in a normal mode. .
The base station according to claim 29, the base station further includes: a processing unit (302) configured to: when the first resource status indication information indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is punctured If the second terminal uses the second scheduling unit to perform puncturing transmission on the downlink portion of the first scheduling unit, performing at least one of the following: a symbol after the puncturing position Setting the power for downlink data transmission to 0 on a predetermined set of resource elements in the first scheduling unit, in a symbol before the puncturing transmission, on a predetermined resource element in the first scheduling unit Set the power for downlink data transmission to 0;

The sending unit (301) is further configured to: if the second terminal does not use the second scheduling unit to perform puncturing transmission on a downlink part of the first scheduling unit, on the predetermined set of resource elements The downlink data is transmitted with a power greater than zero.
A terminal includes: a receiving unit (401) and a processing unit (402), wherein

The receiving unit (401) is configured to receive first resource status indication information that is sent by the base station by using a physical downlink control channel, where the physical downlink control channel is located in a third scheduling unit, and the third scheduling unit is configured to have a scheduling unit with a scheduling interval length, wherein the first resource status indication information is used to indicate that resources occupied by the downlink data scheduled by the physical downlink control channel are resources in a puncturing mode or resources in a normal mode, where the downlink The data is located in a first scheduling unit, and the first scheduling unit is a scheduling unit having a first scheduling interval length;

The processing unit (402) is configured to decode downlink data scheduled by the physical downlink control channel according to the first resource status indication information.
The terminal according to claim 32, wherein resources in the puncturing mode are resources shared by the first terminal and the second terminal, and the second terminal has a ratio of the first scheduling And the terminal that allows the base station to punct the resource when the base station receives the resource in the puncturing mode by using the resource in the puncturing mode, and the terminal is punctured to the second terminal at the puncturing position. Transmitting, by the second scheduling unit, a scheduling unit having a shorter scheduling interval length than the first scheduling interval, where the puncturing location is according to the second terminal adopting the second scheduling The unit performs a location generated by the punch transmission in the downstream portion of the first scheduling unit.
The terminal according to claim 33, wherein the processing unit (402) is configured to: when the first resource status indication information indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is in a puncturing mode Decoding in the puncturing mode, the decoding in the puncturing mode includes: the first terminal detects a puncturing position, and removes data in the corresponding area of the puncturing position in the received data. Decoding; when the first resource status indication information indicates that the resource occupied by the downlink data scheduled by the physical downlink control channel is a resource in the normal mode, the decoding in the normal mode is selected.
The terminal according to claim 34, the terminal further comprising: a determining unit (403) configured to detect discontinuous transmission of DTX on a predetermined set of resource element positions in the first scheduling unit, according to the DTX Position determining that the second terminal uses the second scheduling unit to perform a punching position generated by punching transmission in a downlink portion of the first scheduling unit;

The processing unit (402) is configured to remove, in the received data, the data in the corresponding location of the puncturing location and the location of the DTX for decoding.