WO2020199033A1

WO2020199033A1 - Communication method and apparatus

Info

Publication number: WO2020199033A1
Application number: PCT/CN2019/080657
Authority: WO
Inventors: 罗之虎; 李军; 毕文平; 单宝堃; 金哲; 程型清
Original assignee: 华为技术有限公司
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2020-10-08

Abstract

A communication method and apparatus. The method comprises: a terminal device receiving first configuration information sent by a network device; the terminal device determining a first transmission manner or a second transmission manner according to the first configuration information; and the terminal device receiving, in the first transmission manner or the second transmission manner, first DCI sent by the network device, and a plurality of TBs scheduled by the first DCI. By using the method and apparatus of the present application, DCI and a plurality of TBs scheduled by the DCI can be received by a terminal device in different transmission manners.

Description

Communication method and device

Technical field

This application relates to the field of communication technology, and in particular to a communication method and device.

Background technique

In a wireless communication system, a transport block (TB) can adopt different transmission methods. How a terminal device receives DCI and multiple TBs scheduled by the DCI according to different transmission methods is a current research hotspot.

Summary of the invention

The present application provides a communication method and device to realize that a terminal device receives DCI and multiple TBs scheduled by DCI according to different transmission modes.

In a first aspect, a communication method is provided, including: a terminal device receives first configuration information sent by a network device; the terminal device determines a first transmission mode or a second transmission mode according to the first configuration information; wherein, In the first transmission mode, the first downlink control information DCI adopts the first format, and the multiple transmission blocks TB scheduled by the first DCI adopt the transmission mode with scheduling intervals. In the second transmission mode, The first DCI adopts a second format, and the multiple TBs scheduled by the first DCI adopt a transmission mode without scheduling interval; the terminal device receives the network according to the first transmission mode or the second transmission mode. The first DCI sent by the device and the multiple TBs scheduled by the first DCI.

It can be seen from the above that different transmission modes can be determined according to different configuration information, and the first DCI and multiple TBs scheduled by the first DCI can be received according to different transmission modes to meet the transmission requirements of different transmission modes.

In a possible design, the first configuration information includes a first parameter, the first parameter indicates the number of TBs scheduled by the first DCI, and the terminal device determines the first parameter according to the first configuration information. A transmission method or a second transmission method, including: the value of the first parameter is a first value, and the terminal device determines the first transmission method; or, the value of the first parameter is a second value , The terminal device determines the second transmission mode.

In a possible design, the first configuration information includes a first parameter, and the first parameter indicates the number of TBs scheduled by the first DCI, and the terminal device determines the number of TBs according to the first configuration information. The first transmission mode or the second transmission mode includes: the first parameter is configured, and the terminal device determines the first transmission mode; or, the first parameter is not configured, and the terminal device Determine the second transmission mode.

It can be seen from the above that the first transmission mode and the second transmission mode are determined according to whether the first parameter is configured. In contrast, determining the first transmission mode and the second transmission mode according to different values of the first parameter can save network overhead.

In a possible design, the first configuration information includes a second parameter, the second parameter indicates that the network device supports the first DCI to schedule multiple TBs, or the second parameter indicates that The network device does not support the first DCI to schedule multiple TBs, and the method further includes: the terminal device determines, according to the second parameter, that the network device supports the first DCI to schedule multiple TBs, or, It is determined that the network device does not support the first DCI to schedule multiple TBs.

In a possible design, for each single-cell multicast traffic channel SC-MTCH, the first parameter and/or the second parameter are independently configured.

In a possible design, the first configuration information includes a first configuration parameter list and a second configuration parameter list, and the terminal device determines the first transmission mode or the second transmission mode according to the first configuration information, The method includes: the terminal device determines that the first configuration parameter list corresponds to a first transmission mode; or, the terminal device determines that the second configuration parameter list corresponds to a second transmission mode.

It can be seen from the above that in this design, according to the different configuration parameter lists, different transmission modes can be determined, which is simple and easy to implement, and has high compatibility with the existing technology.

In a possible design, the number of SC-MTCH configuration information groups included in the first configuration parameter list is a first number, and the number of SC-MTCH configuration information groups included in the second configuration parameter list is The second quantity, the sum of the first quantity and the second quantity does not exceed a preset value.

In a possible design, the multiple TBs scheduled by the first DCI adopt a scheduling interval transmission mode, including: the multiple TBs scheduled by the first DCI include a first TB and a second TB, and the The first TB and the second TB are adjacent in the time domain, and there is a scheduling interval between the first TB and the second TB; the multiple TBs scheduled by the first DCI adopt a transmission mode without a scheduling interval, including: There is no scheduling interval between any two adjacent TBs in the time domain among the multiple TBs scheduled by the first DCI.

In a second aspect, a communication method is provided, including: a network device sends first configuration information to a terminal device; wherein the first configuration information is used by the terminal device to determine a first transmission mode or a second transmission mode, and In the first transmission mode, the first downlink control information DCI adopts the first format, and the multiple transmission blocks TB scheduled by the first DCI adopt the transmission mode with scheduling intervals. In the second transmission mode, The first DCI adopts the second format, and the multiple TBs scheduled by the first DCI adopt a transmission mode without a scheduling interval; the network device sends the first DCI and the first DCI scheduled data to the terminal device. Multiple terabytes.

In a possible design, the first configuration information includes a first parameter, and the first parameter represents the number of TBs scheduled by the first DCI; wherein the value of the first parameter is a first value , Represents the first transmission mode; or, the value of the first parameter is a second value, represents the second transmission mode.

In a possible design, the first configuration information includes a first parameter, and the first parameter indicates the number of TBs scheduled by the first DCI; wherein, the first parameter is configured to indicate the first A transmission mode; or, if the first parameter is not configured, it indicates the second transmission mode.

In a possible design, the first configuration information includes a second parameter, the second parameter indicates that the network device supports the first DCI to schedule multiple TBs, or the second parameter indicates that The network device does not support the first DCI to schedule multiple TBs.

In a possible design, the first configuration information includes a first configuration parameter list and a second configuration parameter list, the first configuration parameter list corresponds to the first transmission mode, and the second configuration parameter list corresponds to the second configuration parameter list. transfer method.

In a possible design, the multiple TBs scheduled by the first DCI adopt a scheduling interval transmission mode, including: the multiple TBs scheduled by the first DCI include a first TB and a second TB, and the The first TB and the second TB are adjacent in the time domain, and there is a scheduling interval between the first TB and the second TB; the multiple TBs scheduled by the first DCI adopt a transmission mode without a scheduling interval, including : There is no scheduling interval between any two adjacent TBs in the time domain among the multiple TBs scheduled by the first DCI.

In a third aspect, a communication device is provided. The device may be a terminal device, or a device in a terminal device, or a device that can be matched and used with a terminal device. In one design, the device may include modules that perform one-to-one correspondence of the methods/operations/steps/actions described in the first aspect. The modules may be hardware circuits, software, or hardware circuits combined with software. . Exemplarily, the device may include a transceiving module and a processing module, and the transceiving module and the processing module can perform the corresponding function in any of the design examples of the first aspect, specifically:

The transceiver module is used to receive the first configuration information sent by the network device;

A processing module, configured to determine a first transmission mode or a second transmission mode according to the first configuration information;

Wherein, in the first transmission mode, the first downlink control information DCI adopts a first format, the multiple transmission blocks TB scheduled by the first DCI adopt a transmission mode with a scheduling interval, and in the second transmission mode Where the first DCI adopts a second format, and the multiple TBs scheduled by the first DCI adopt a transmission mode without scheduling interval;

The transceiver module is further configured to receive the first DCI sent by the network device and multiple TBs scheduled by the first DCI according to the first transmission mode or the second transmission mode.

Regarding the functions of the transceiver module and the processing module, reference may be made to the record in the first aspect, which will not be described here.

In a fourth aspect, a communication device is provided. The device may be a network device, or a device in a network device, or a device that can be matched and used with a network device. In one design, the device may include modules that perform one-to-one correspondence of the methods/operations/steps/actions described in the second aspect. The modules may be hardware circuits, software, or hardware circuits combined with software. . Exemplarily, the device may include a transceiving module, and the transceiving module is configured to perform the corresponding function in any of the design examples in the second aspect, specifically:

A processing module, configured to determine first configuration information, first downlink control information DCI, and multiple transmission blocks TB scheduled by the first DCI;

A transceiver module, configured to send the first configuration information, the first DCI, and multiple TBs scheduled by the first DCI to a terminal device;

The first configuration information is used by the terminal device to determine a first transmission mode or a second transmission mode. In the first transmission mode, the first DCI adopts a first format, and the first DCI The multiple scheduled TBs adopt a transmission mode with a scheduling interval. In the second transmission mode, the first DCI adopts a second format, and the multiple TBs scheduled by the first DCI adopt a transmission mode without a scheduling interval.

Regarding the specific functions of the processing module and the transceiver module, please refer to the record of the second aspect above, which will not be described here.

In a fifth aspect, an embodiment of the present application provides a device, which includes a processor, configured to implement the method described in the first aspect. The device may also include a memory for storing instructions and/or data. The memory is coupled with the processor, and when the processor executes the program instructions stored in the memory, the method described in the first aspect can be implemented. The device may also include a communication interface, which is used for the device to communicate with other devices. Exemplarily, the communication interface may be a transceiver, circuit, bus, module, pin, or other type of communication interface. The device may be a network device, etc. In a possible device, the device includes:

Memory, used to store program instructions;

The communication interface is used to receive the first configuration information sent by the network device.

The processor is configured to determine a first transmission mode or a second transmission mode according to the first configuration information, and control the communication interface to receive the data sent by the network device according to the first transmission mode or the second transmission mode The first DCI and multiple TBs scheduled by the first DCI.

For the functions of the processor and the communication interface, please refer to the record in the first aspect, which will not be repeated here.

In a sixth aspect, an embodiment of the present application provides a device, which includes a processor, configured to implement the method described in the second aspect. The device may also include a memory for storing instructions and/or data. The memory is coupled with the processor, and when the processor executes the program instructions stored in the memory, the method described in the second aspect can be implemented. The device may also include a communication interface, which is used for the device to communicate with other devices. Exemplarily, the communication interface may be a transceiver, circuit, bus, module, pin, or other type of communication interface. The device may be a terminal device and so on. In a possible device, the device includes:

Memory, used to store program instructions;

A processor, configured to determine first configuration information, first downlink control information DCI, and multiple transmission TBs scheduled by the first DCI;

The communication interface is used to send the first configuration information, the first DCI, and the multiple TBs scheduled by the first DCI to a terminal device.

For the functions of the processor and the communication interface, reference may be made to the record in the second aspect, which will not be repeated here.

In a seventh aspect, embodiments of the present application also provide a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute any possible design of the first aspect, the first aspect, the second aspect, or the first aspect. Any of the two possible design methods.

In an eighth aspect, the embodiments of the present application also provide a chip system. The chip system includes a processor and may also include a memory for implementing any possible design of the first aspect, the first aspect, the second aspect, or the second aspect Any possible design method. The chip system can be composed of chips, or can include chips and other discrete devices.

In the ninth aspect, the embodiments of the present application also provide a computer program product, including instructions, which when run on a computer, cause the computer to execute any possible design of the first aspect, the first aspect, the second aspect, or the second aspect. Any possible design method.

In a tenth aspect, an embodiment of the present application provides a system, which includes the device described in the third aspect or the fifth aspect and the device described in the fourth or sixth aspect.

Description of the drawings

Fig. 1 is a schematic diagram of a communication system provided by an embodiment of the application;

2 is a flowchart of a communication method provided by an embodiment of the application;

3a and 3b are schematic diagrams of scheduling multiple TBs in the first DCI according to an embodiment of the application;

FIG. 4 is a schematic diagram of an enhanced SC-PTM provided by an embodiment of the application;

FIG. 5 is a schematic structural diagram of a device provided by an embodiment of the application;

FIG. 6 is a schematic diagram of another structure of a device provided by an embodiment of the application.

detailed description

The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

FIG. 1 shows a communication system 100 provided by an embodiment of the present application. The communication system 100 includes a terminal device 101 and an access network device 102. Optionally, the communication system 100 may further include a core network device 103.

The terminal device 101 connects to the access network device 102 in a wireless manner, and the access network device 102 can be connected to the core network device 103 in a wired or wireless manner. Optionally, the core network device 103 and the access network device 102 may be separate and different physical devices, or the core network device 103 and the access network device 102 are the same physical device, and the core network device 103 is integrated on the physical device. All/part of the functions and all/part of the logical functions of the access network device 102. The terminal device 101 may be fixed or mobile.

It can be understood that, in the embodiments of the present application, the composition of the communication system 100 shown in FIG. 1 is only an exemplary description, and is not intended to limit the present application. For example, in an example, the communication system 100 may also include a wireless relay device or a wireless backhaul device. In the communication system 100 shown in FIG. 1, the number of core network equipment, access network equipment, and terminal equipment is not limited. For example, the communication system 100 may include a number of terminal devices other than two terminal devices.

In an example, the access network equipment 102 and the terminal equipment 101 can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted, etc.; the access network equipment 102 and the terminal equipment 101 can also be deployed on the water; the access network equipment 102 and terminal equipment 101 can also be deployed on airplanes, balloons, and satellites in the air. The embodiment of the present application does not limit the application scenarios of the access network device 102 and the terminal device 101.

In an example, the communication system shown in FIG. 1 may be suitable for downlink signal transmission, may also be suitable for uplink signal transmission, and may also be suitable for device-to-device (D2D) signal transmission. For downlink signal transmission, the sending device is the access network device 102, and the corresponding receiving device is the terminal device 101. For uplink signal transmission, the sending device is the terminal device 101, and the corresponding receiving device is the access network device 102. For D2D signal transmission, the sending device is the terminal device 101, and the corresponding receiving device is also the terminal device 101. The embodiment of the present application does not limit the signal transmission direction.

In an example, communication between the access network device 102 and the terminal device 101 and between the terminal device 101 and the terminal device 101 may be through a licensed spectrum (licensed spectrum), or communication may be conducted through an unlicensed spectrum (unlicensed spectrum), It is also possible to communicate through licensed spectrum and unlicensed spectrum at the same time. The access network device 102 and the terminal device 101 and the terminal device 101 and the terminal device 101 can communicate through the frequency spectrum below 6G, or communicate through the frequency spectrum above 6G, and can also use the frequency spectrum below 6G and 6G at the same time. Above the spectrum to communicate. The embodiment of the present application does not limit the spectrum resource used between the access network device 102 and the terminal device 101.

For ease of understanding, the description of concepts related to the present application is exemplarily given for reference, as shown below. It can be understood that the above description of related concepts is only an exemplary description, and is not intended to limit the application.

1) A network device is an entity used to transmit or receive signals on the network side. The network device may be a device used to communicate with terminal devices. For example, the network device may include the access network device 102 and/or the core network device 103 shown in FIG. 1. Alternatively, the network equipment may include a new generation Node B (gNodeB). Alternatively, the network equipment may be an AP in a wireless local area network (WLAN), a base station (global system for mobile communication, GSM) or code division multiple access (CDMA). basetransceiver station, BTS), can also be a base station (NodeB, NB) in wideband code division multiple access (WCDMA), or an evolved base station in long term evolution (LTE) (evolutional Node B, eNB or eNodeB), or relay station or access point, or in-vehicle equipment, wearable equipment, and network equipment in the future 5G network or the public land mobile network (PLMN) network Network equipment, or gNodeB in the NR system. In addition, in the embodiments of the present application, the network equipment provides services for the cell, and the terminal equipment communicates with the network equipment through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell. The cell may be a network equipment. (E.g. base station) The corresponding cell, the cell can belong to a macro base station or a base station corresponding to a small cell. The small cell here can include: Metro cell, Micro cell, and Pico cell (Pico cell), Femto cell, etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services. In addition, in other possible situations, the network device may be another device that provides wireless communication functions for the terminal device. The embodiment of the present application does not limit the specific technology and specific device form adopted by the network device. For ease of description, in the embodiments of the present application, a device that provides a wireless communication function for a terminal device is called a network device.

2) A terminal device can be a wireless terminal device that can receive network device scheduling and instruction information. A wireless terminal device can be a device that provides voice and/or data connectivity to users, or a handheld device with wireless connection function, or a connection Other processing equipment to the wireless modem. A wireless terminal device can communicate with one or more core networks or the Internet via a wireless access network (e.g., radio access network, RAN). The wireless terminal device can be a mobile terminal device, such as a mobile phone (or called a "cellular" phone). , Mobile phones), computers, and data cards, for example, may be portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile devices, which exchange language and/or data with the wireless access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), tablets Computer (Pad), computer with wireless transceiver function and other equipment. Wireless terminal equipment can also be called system, subscriber unit, subscriber station, mobile station, mobile station (MS), remote station (remote station), access point ( access point, AP), remote terminal equipment (remote terminal), access terminal equipment (access terminal), user terminal equipment (user terminal), user agent (user agent), subscriber station (subscriber station, SS), user terminal equipment (customer premises equipment, CPE), terminal (terminal), user equipment (user equipment, UE), mobile terminal (mobile terminal, MT), etc. Wireless terminal devices can also be wearable devices and next-generation communication systems, for example, terminal devices in a 5G network or terminal devices in a public land mobile network (PLMN) network that will evolve in the future, and in NR communication systems. Terminal equipment, etc.

3) Single cell point to multipoint (SC-PTM) is a broadcast technology based on multicast. The multicast technology is when a network device sends the same downlink data to multiple terminal devices A network device can configure a multicast group for multiple terminal devices. The network device only needs to send data to the multicast group once, and all terminal devices in the multicast group can receive the downlink data.

For example, two logical channels are introduced in SC-PTM, namely single cell multi-cast control channel (SC-MCCH) and single cell multi-cast traffic channel (single cell multi-cast traffic). channel, SC-MTCH). Among them, SC-MCCH is a control channel, used to notify terminal equipment to receive control information required by SC-MTCH, and SC-MTCH is a data service channel, used to transmit service data in multicast.

4) Effective downlink subframe: In different communication systems, there are different definitions.

For example, for a narrowband Internet of Things (NB-IoT) system, the effective subframe may be referred to as a downlink subframe (NB-IoT DL subframe) in NB-IoT.

For example, the terminal device may determine that it does not include a narrowband primary synchronization signal (NPSS), or a narrowband secondary synchronization signal (NSSS), or a narrowband physical broadcast channel (NPBCH), or The subframes transmitted by the NB system information block type (SystemInformation block type1-NB) are NB-IoT downlink subframes.

Alternatively, the terminal device may receive configuration parameters, which are used to configure NB-IoT downlink subframes. The terminal device can determine the NB-IoT downlink subframe according to the configuration parameter. The configuration parameters can be configured through system messages or radio resource control (radio resource control, RRC) signaling, etc. The embodiment of the present application does not specifically limit the configuration of the configuration signaling.

For example, for an enhanced machine type communication (eMTC) system, or a long term evolution-machine type communication (LTE-M) system, the effective subframe can be called bandwidth reduction and low complexity / Coverage enhancement (bandwidth-reduced Low-complexity or coverage enhanced, BL/CE) downlink subframes. Among them, the BL/CE downlink subframe can be configured through configuration parameters, and the configuration parameters are configured through system messages or RRC signaling. The embodiment of the present application does not specifically limit the configuration manner of the configuration signaling.

5) And/or: Describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone, where A, B can be singular or plural. The character "/" generally indicates that the associated objects are in an "or" relationship.

It is understandable that in the description of this application, words such as "first" and "second" are only used for the purpose of distinguishing description, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying order.

In the embodiments of the present application, words such as "exemplary" or "for example" are used as examples, illustrations, or illustrations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as "exemplary" or "for example" are used to present related concepts in a specific manner.

As shown in FIG. 2, a schematic flow chart of a communication method is provided. The network device in the flow may be the access network device 102 or the core network device 103 in FIG. 1, and the terminal device may be the terminal device 101 in FIG. , The process can include:

S201. The network device sends first configuration information to the terminal device. For example, the first configuration information may be system messages, radio resource control (radio resource control, RRC) signaling, media access control (media access control, MAC) control element (CE), etc.

S202. The terminal device receives the first configuration information sent by the network device.

S203. The terminal device determines the first transmission mode or the second transmission mode according to the first configuration information.

S204. The network device sends first downlink control information (down control information, DCI) to the terminal device.

Wherein, the first DCI carries scheduling information of multiple transport blocks (TB).

S205. The terminal device receives the first DCI sent by the network device.

Optionally, the terminal device may receive the first DCI according to the first transmission mode or the second transmission mode. For example, if the first transmission mode includes the first DCI in the first format, the terminal device may receive the first DCI according to the first format. Alternatively, the second transmission mode includes the first DCI in the second format, and the terminal device may receive the first DCI according to the second format.

S206. The network device sends multiple TBs scheduled by the first DCI to the terminal device.

S207. The terminal device receives multiple TBs scheduled by the first DCI sent by the network device.

Optionally, the terminal device may receive multiple TBs scheduled by the first DCI according to the first transmission mode or the second transmission mode. For example, the first transmission mode includes a transmission mode with a scheduling interval, and the terminal device may receive multiple TBs scheduled by the first DCI in a manner with a scheduling interval according to the scheduling information in the first DCI. Or, the second transmission mode includes a transmission mode without a scheduling interval, and the terminal device may receive multiple TBs scheduled by the first DCI in a manner without a scheduling interval according to the scheduling information in the first DCI.

For example, the multiple TBs scheduled by the first DCI may be continuous or non-continuous. For example, the first DCI schedules 4 TBs, and the numbers of the 4 TBs are TB1, TB2, TB3, and TB4 as an example.

As shown in Figure 3a, TB1 to TB4 can be continuous in the time domain. Compared with the continuous transmission of different TBs, the multicast transmission efficiency is higher than that of the non-continuous transmission of TBs.

Or, as shown in Figure 3b, TB1 to TB4 may be non-continuous in the time domain. Wherein, the time domain interval between any two TBs of TB1 to TB4 may be predefined or notified by the network device through signaling.

Optionally, in the process shown in FIG. 2, it may further include: the network device determines the first configuration information, the first DCI, and multiple TBs scheduled by the first DCI. It is understandable that, in the embodiment of the present application, the sequence of the first configuration information, the first DCI, and the multiple TBs scheduled by the first DCI is not limited to the network device determining and/or sending.

Example one

The first configuration information includes a first parameter, and the value of the first parameter may include a first value or a second value, the first value represents the first transmission mode, and the second value represents the second transmission mode. For example, the value of the first value may be 1, and the value of the second value may be 0. Or, the value of the first value may be 0, and the value of the second value may be 1. Optionally, the first parameter may indicate the number of TBs scheduled by the first DCI. For example, when the value of the first parameter (that is, the above-mentioned first value) is 1, it can indicate the first transmission mode, and when the value of the first parameter (that is, the above-mentioned second value) is a positive integer from 2 to 8, May represent the second transmission mode.

For example, a specific implementation of S203 may be: when the first parameter takes the first value, the terminal device determines the first transmission mode. When the first parameter takes the second value, the terminal device determines the second transmission mode.

For example, a specific implementation of S203 may be: when the first parameter is configured, the terminal device determines the first transmission mode. When the first parameter is not configured, the terminal device determines the second transmission mode.

Optionally, the first configuration information may also include a second parameter. When the second parameter is configured, the second parameter indicates that the network device supports the first DCI to schedule multiple TBs. When the second parameter is not configured When the second parameter indicates that the network device does not support the first DCI scheduling multiple TBs; or, when the second parameter is configured, the second parameter indicates that the network device does not support the first DCI scheduling Multiple TBs, when the second parameter is not configured, the second parameter indicates that the network device supports the first DCI to schedule multiple TBs. The value of the second parameter may include a third value or a fourth value. The third value indicates that the network device supports the first DCI to schedule multiple TBs, and the fourth value indicates that the network device does not support the first DCI to schedule multiple TBs. . For example, when the value of the third value is 0, it may indicate that the network device supports the first DCI to schedule multiple TBs. When the value of the fourth value is 1, it may indicate that the network device does not support the first DCI to schedule multiple TBs. . Or, when the value of the third value is 1, it may indicate that the network device supports the first DCI to schedule multiple TBs, and when the value of the fourth value is 0, it may indicate that the network device does not support the first DCI to schedule multiple TBs Wait.

Optionally, the process shown in FIG. 2 may further include: the terminal device determines, according to the second parameter, that the network device supports the first DCI to schedule multiple TBs, or determines that the network device does not support The first DCI schedules multiple TBs. For example, when the value of the second parameter is the third value, it can be determined that the network device supports the first DCI to schedule multiple TBs. When the value of the second parameter is the fourth value, it can be determined that the network device does not support the first DCI to schedule multiple TBs. Or, when the second parameter is configured, it may be determined that the network device supports the first DCI to schedule multiple TBs. When the second parameter is not configured, it can be determined that the network device does not support the first DCI to schedule multiple TBs, etc.

In this embodiment, for each single-cell multicast traffic channel SC-MTCH, the first parameter and/or the second parameter are independently configured.

For example, the first configuration information may be an SC-MTCH configuration information list, that is, it includes multiple SC-MTCH configuration information. The configuration information of each SC-MTCH may include the first parameter and/or the second parameter.

For example, the first configuration information may also be the configuration information of the SC-MTCH that a terminal device is interested in. The configuration information of the SC-MTCH may include the first parameter and/or the second parameter. For example, the first configuration information may also be SC-MTCH configuration information of interest to multiple terminal devices. The configuration information of each SC-MTCH of the multiple SC-MTCHs may include the first parameter and/or the second parameter.

For a specific communication system, taking the NB-IoT system as an example, the first configuration information may refer to the message SCPTMConfiguration-NB, or information element (IE) SC-MTCH-InfoList-NB, or SC-MTCH-Info -NB. Taking eMTC or LTE-M as an example, the first configuration information may refer to the message SCPTMConfiguration-BR, or IE SC-MTCH-InfoList-BR, or SC-MTCH-Info-BR.

Example two

The first configuration information may include the third parameter and/or the fourth parameter. The third parameter indicates the number of TBs scheduled by the first DCI. The value of the third parameter can be the fifth value or the sixth value. For example, the value of the fifth value can be a positive integer from 2 to 8, and the value of the sixth value can be 1.

For example, a specific implementation of the above S203 may be: the value of the third parameter is a fifth value, and the terminal device determines the first transmission mode. Optionally, the process shown in FIG. 2 may further include: when the value of the third parameter is a sixth value, it is determined that the network device does not support the first DCI to schedule multiple TBs.

For example, a specific implementation of the above S203 may be: when the third parameter is configured, the terminal device determines the first transmission mode; when the third parameter is not configured, the terminal device It is determined that the network device does not support the first DCI to schedule multiple TBs.

Or, when the third parameter is configured, the terminal device determines that the network device supports the first DCI to schedule multiple TBs, and the terminal device determines the first transmission mode; when the third When the parameter is not configured, the terminal device determines that the network device does not support the first DCI to schedule multiple TBs.

Optionally, the process shown in FIG. 2 may further include: when the fourth parameter is configured, the terminal device determines the second transmission mode. When the fourth parameter is not configured, it is determined that the network device does not support the first DCI to schedule multiple TBs.

Alternatively, when the fourth parameter is configured, the terminal device determines that the network device supports the first DCI to schedule multiple TBs, and the terminal device determines the second transmission mode. When the fourth parameter is not configured, it is determined that the network device does not support the first DCI to schedule multiple TBs.

In this embodiment, for each single-cell multicast traffic channel SC-MTCH, the third parameter and/or the fourth parameter are independently configured.

For example, the first configuration information may be an SC-MTCH configuration information list, that is, it includes multiple SC-MTCH configuration information. The configuration information of each SC-MTCH may include the third parameter and/or the fourth parameter.

For example, the first configuration information may also be the configuration information of the SC-MTCH that a terminal device is interested in. The configuration information of the SC-MTCH may include the third parameter and/or the fourth parameter.

For example, the first configuration information may also be SC-MTCH configuration information of interest to multiple terminal devices. The configuration information of each SC-MTCH of the multiple SC-MTCHs may include the third parameter and/or the fourth parameter.

Example three

The first configuration information may include a first configuration parameter list and a second configuration parameter list. Wherein, the first configuration parameter list may correspond to the first transmission mode, and the second configuration parameter list may correspond to the second transmission mode.

For example, a specific implementation of S203 may be: the terminal device determines that the first configuration parameter list corresponds to the first transmission mode; or, the terminal device determines that the second configuration parameter list corresponds to the second transmission mode .

For example, the first configuration parameter list may include one or more sets of SC-MTCH configuration information, and the second configuration parameter list may include one or more sets of SC-MTCH configuration information. For example, each group of SC-MTCH configuration information or each SC-MTCH configuration information group may include one or more of the following:

Session control (Session) information: including session ID and temporary mobile group identity (TMGI), used to distinguish the identifier of the multicast service. One multicast service corresponds to one session ID;

Wireless network temporary identity (radio network temporary identity, G-RNTI): used for DCI scheduling SC-MTCH, corresponding to session ID;

SC-MTCH scheduling information: including SC-MTCH reception and dormancy information, etc., indicating when the terminal device should receive SC-MTCH service data;

Neighboring cell information: Neighboring cell information is used to indicate whether the neighboring cell provides the session that the user is interested in;

Carrier configuration information of SC-MTCH: indicates on which carrier the SC-MTCH is transmitted;

Scheduling SC-MTCH narrowband physical downlink control channel (narrowband physical downlink control channel, NPDCCH) configuration information: including parameters R _max , G, α _offset, etc. Among them, the period of the search space is G*R _max (milliseconds), the duration in each period is R _max valid downlink subframes, and the starting position is offset from the starting position of each period backward by G *R _max *α _offset (milliseconds). The maximum transport block (transport block, TBS) of SC-MTCH in physical layer transmission: TBS can be configured as 680bit or 2536bit.

SC-MCCH scheduling information: including discontinuous reception (DRX) configuration information, etc.

For example, it is set that the first configuration parameter list includes a first number of SC-MTCH configuration information groups, and the second configuration parameter list includes a second number of SC-MTCH configuration information groups, the sum of the first number and the second number Does not exceed the predetermined value. For example, for NB-IoT services, the aforementioned predetermined value may be 64. For eMTC services, the aforementioned predetermined value may be 128.

The first parameter list may include the number of TBs scheduled by the first DCI.

For a specific communication system, taking the NB-IoT system as an example, the first configuration information may refer to the message SCPTMConfiguration-NB, or the information element (IE) SC-MTCH-InfoList-NB. Taking eMTC or LTE-M as an example, the first configuration information may refer to the message SCPTMConfiguration-BR, or IE SC-MTCH-InfoList-BR.

Example four

In the embodiment of the present application, the format of the first DCI includes the first format and the second format, and the transmission modes of multiple TBs include a transmission mode with a scheduling interval and a transmission mode without a scheduling interval.

Example 1: The first transmission mode may be: the first DCI adopts the first format, and the transmission mode of multiple TBs scheduled by the first DCI is a scheduling interval. The second transmission mode may be: the first DCI adopts the second format, and the transmission mode of multiple TBs scheduled by the first DCI is that there is no scheduling interval.

For example 1, if the terminal device determines the first transmission mode according to the first configuration information.

A specific implementation of S205 shown in FIG. 2 may be: the terminal device determines that the format of the first DCI is the first format. The terminal device receives the first DCI according to the first format. Wherein, the first DCI carries scheduling information of multiple TBs.

A specific implementation of S207 shown in FIG. 2 may be: the terminal device determines that the transmission of multiple TBs scheduled by the first DCI has a scheduling interval. According to the scheduling information in the first DCI, the terminal device receives multiple TBs scheduled by the first DCI in a manner with a scheduling interval.

For example 1, if the terminal device determines the second transmission mode according to the first configuration information.

A specific implementation of S205 shown in FIG. 2 may be: the terminal device determines that the format of the first DCI is the second format. The terminal device receives the first DCI according to the second format. Wherein, the first DCI carries scheduling information of multiple TBs.

A specific implementation of S207 shown in FIG. 2 may be: the terminal device determines that the transmission of multiple TBs scheduled by the first DCI has no scheduling interval. According to the scheduling information in the first DCI, the terminal device receives multiple TBs scheduled by the first DCI in a manner without a scheduling interval.

It should be noted that, in the embodiments of the present application, the format of the first DCI included in the first transmission mode and the second transmission mode and the transmission mode of multiple TBs scheduled by the first DCI are not specifically limited. For example, in an example of the present application, for ease of distinction, the following example may be referred to as example two. The first transmission mode may be: the first DCI adopts the first format, and the transmission mode of multiple TBs scheduled by the first DCI is that there is no scheduling interval. The second transmission mode may be: the first DCI adopts the second format, and the transmission mode of the multiple TBs scheduled by the first DCI is a scheduling interval. In the transmission mode of the above example two, the process of receiving the first DCI and the multiple TBs scheduled by the first DCI by the terminal device is similar to the process recorded in the above example one, and will not be described here.

Example five

In the embodiment of the present application, the format of the first DCI includes the first format and the second format.

For example, in the first transmission mode, the first DCI adopts the first format. In the second transmission mode, the first DCI adopts the second format.

For example, if the terminal device determines the first transmission mode according to the first configuration information.

A specific implementation of the foregoing S205 may be: the terminal device determines that the format of the first DCI is the first format. The terminal device receives the first DCI according to the first format. Wherein, the first DCI carries scheduling information of multiple TBs.

A specific implementation of the foregoing S207 may be: the terminal device receives multiple TBs scheduled by the first DCI according to the scheduling information in the first DCI.

For example, if the terminal device determines the second transmission mode according to the first configuration information.

A specific implementation of the foregoing S205 may be: the terminal device determines that the format of the first DCI is the second format. The terminal device receives the first DCI according to the second format. Wherein, the first DCI carries scheduling information of multiple TBs.

In the embodiment of the present application, the transmission of multiple TBs scheduled by the first DCI may have a scheduling interval or no scheduling interval, which is not limited here.

Example Six

In the embodiment of the present application, the transmission modes of multiple TBs scheduled by the first DCI include a transmission mode with a scheduling interval and a transmission mode without a scheduling interval.

In the first transmission mode, multiple TBs scheduled by the first DCI adopt a transmission mode with a scheduling interval. In the second transmission mode, multiple TBs scheduled by the first DCI adopt a transmission mode without scheduling interval.

A specific implementation of the foregoing S205 may be: the terminal device receives the first DCI, and the first DCI carries scheduling information of multiple TBs.

A specific implementation of the foregoing S207 may be: the terminal device determines that the transmission of multiple TBs scheduled by the first DCI has a scheduling interval. According to the scheduling information in the first DCI, the terminal device receives multiple TBs scheduled by the first DCI in a manner with a scheduling interval.

A specific implementation of the foregoing S207 may be: the terminal device determines that the transmission of multiple TBs scheduled by the first DCI has no scheduling interval. According to the scheduling information in the first DCI, the terminal device receives multiple TBs scheduled by the first DCI in a manner without a scheduling interval.

In the embodiment of this application, the format of the first DCI may be the first format or the second format, which is not limited here.

Example Seven

In the example of this application, the first DCI in the first format and the first DCI in the second format in the fourth to sixth embodiments above are introduced.

It should be noted that the first format and the second format in the embodiment of this application may be different DCI formats, for example, the first format is DCI format A, and the second format is DCI format B. The first format and the second format can also be the same DCI format, but the fields included in the DCI of the first format are different from the fields included in the DCI of the second format, or the fields included in the DCI of the first format are different from those in the second format. The fields included in the DCI of the format are the same, but the meaning or value is different.

Optionally, the first format may also be referred to as format N1 (format N1). As shown in Table 1, the first DCI of the first format may include at least one of the following: SC-MCCH change notification information field, scheduling delay field, resource allocation field, modulation and coding scheme (MCS), repetition The number of times field and DCI repeat times field, etc.

Among them, the SC-MCCH change notification information field is used to notify whether the configuration information in the SC-MCCH has been changed; the scheduling delay field is used to determine the length of time between the end of DCI transmission and the start time of the downlink transmission scheduled by the DCI ; The resource allocation field is used to indicate the allocation of scheduling resources, such as time domain resource allocation; the MCS field is used to indicate the modulation order; the repetition number field is used to indicate the number of repetitions used in TB transmission; the DCI repetition number field is used to indicate DCI The number of repetitions. Optionally, the size of TB can be determined according to the MCS domain and the resource allocation domain

Table 1

信息(Information)Information (Information)	大小(Size[bits])Size (Size[bits])
SC-MCCH变更通知信息域SC-MCCH change notification information field	22
调度时延域Scheduling delay domain	33
资源分配域Resource allocation domain	33
MCS域MCS domain	44
重复次数域Repetition field	44
DCI重复次数域DCI repeat count field	22

It should be noted that for the DCI in the first format described above, the number of TBs scheduled by the first DCI can be indicated by the first configuration information in the process shown in FIG. 2. For example, in the foregoing embodiment 1, the first parameter in the first configuration information may indicate the number of TBs scheduled by the first DCI. In the third embodiment above, the third parameter in the first configuration information may indicate the number of TBs scheduled by the first DCI.

For example, as shown in Table 2, the first DCI in the second format may include at least one of the following: SC-MCCH change notification information field, scheduling delay field, resource allocation field, MCS field, repeat count field, DCI repeat count The number of domains and scheduling TB domains, etc. Regarding the SC-MCCH change notification information field, the scheduling delay field, the resource allocation field, the MCS field, the repetition number field and the DCI repetition number field, please refer to the introduction in Table 1, which will not be described here. Regarding the number of scheduled TB fields , May specifically include the number of second DCI scheduled TBs in the second format. Further, as shown in Table 2, the value of the size n of the number of scheduled TBs field is specifically related to the maximum number of TBs that can be scheduled in the first DCI of the second format. For example, if the first DCI of the second format can schedule up to 8 TBs, the value of n can be 3, and the number of scheduled TB fields is used to determine {1,2,3,4,5,6,7,8} One of the values, or the value of n can be 2. The number of scheduled TB fields is used to determine one of {1,2,4,8}.

Table 2

信息(Information)Information (Information)	大小(Size[bits])Size (Size[bits])
SC-MCCH变更通知信息域SC-MCCH change notification information field	22
调度时延域Scheduling delay domain	33
资源分配域Resource allocation domain	33
MCS域MCS domain	44
重复次数域Repetition field	44
DCI重复次数域DCI repeat count field	22
调度TB的数量域The number of scheduled TB fields	nn

Example eight

In the example of this application, the TB transmission mode with a scheduling interval and the TB transmission mode without a scheduling interval in the fourth to sixth embodiments above are introduced.

For example, the transmission of multiple TBs scheduled by the first DCI without a scheduling interval may refer to: occupying continuous valid downlink subframes in the time domain to transmit multiple TBs scheduled by the first DCI. The scheduling interval for the transmission of multiple TBs scheduled by the first DCI may refer to: occupying non-contiguous valid downlink subframes in the time domain to transmit multiple TBs scheduled by the first DCI. For example, there are 10 consecutive valid downlink subframes, numbered sequentially 1, 2, 3, 4, 5, 6, 7, 8, 9, 10. If the first DCI schedules multiple TBs, the effective downlink subframes occupied The numbers of the subframes are 1, 2, and 3, and it can be considered that the transmission mode of multiple TBs has no scheduling interval. If for multiple TBs scheduled by the first DCI, the numbers of the valid downlink subframes occupied are 1, 3, and 5 respectively, and there are other valid downlink subframes between the effective downlink subframe 1 and the effective downlink subframe 3, and /Or, if there are other valid downlink subframes between the effective downlink subframe 3 and the effective downlink subframe 5, it can be considered that the transmission mode of multiple TBs has a scheduling interval.

For example, the scheduling interval for the transmission of multiple TBs scheduled by the first DCI may refer to that there is a scheduling interval between at least one group of two TBs adjacent in time among the multiple TBs scheduled by the first DCI. It is set that the multiple TBs scheduled by the first DCI include the first TB and the second TB, and the first TB and the second TB are adjacent in the time domain, then the multiple TBs scheduled by the first DCI can be specified with a scheduling interval. Including: there is a scheduling interval between the first TB and the second TB. Taking specific values as an example, suppose that the multiple TBs scheduled by the first DCI include 3 TBs, which are called first TB, second TB, and third TB in chronological order, where the first TB and the second TB are in the time domain Adjacent, the second TB and the third TB are adjacent in the time domain, so the multiple TBs scheduled by the first DCI have a scheduling interval, which means: there is a scheduling interval between the first TB and the second TB, and the second TB There is a scheduling interval with the third TB; or, there is a scheduling interval between the first TB and the second TB, and there is no scheduling interval between the second TB and the third TB; or, there is no scheduling interval between the first TB and the second TB. Scheduling interval, there is a scheduling interval between the second TB and the third TB.

There is no scheduling interval for transmission of multiple TBs scheduled by the first DCI, which may mean that there is no scheduling interval between any two of the multiple TBs scheduled by the first DCI between adjacent TBs in the time domain. If the multiple TBs scheduled by the first DCI include the first TB and the second TB, and the first TB and the second TB are adjacent in the time domain, the multiple TBs scheduled by the first DCI without a scheduling interval may specifically include: There is no scheduling interval between the first TB and the first TB. Taking specific values as an example, suppose that the multiple TBs scheduled by the first DCI include 3 TBs, which are called first TB, second TB, and third TB in chronological order, where the first TB and the second TB are in the time domain Adjacent, the second TB and the third TB are adjacent in the time domain, so the multiple TBs scheduled by the first DCI have no scheduling interval means: there is no scheduling interval between the first TB and the second TB, and the second TB There is no scheduling interval between and the third TB.

Example 9

The embodiments of this application provide an application scenario, and the method provided in the above embodiments can be specifically applied to this scenario. Taking the NB-IoT system as an example, the specific process may be:

Step 1: The terminal device obtains system information from the network device. For example, the system message may specifically be a system broadcast message (system broadcast information, SIB). The system message includes the configuration information of the SC-MCCH and the configuration information of the first NPDCCH used to schedule the SC-MCCH.

For example, the SC-MCCH configuration information may include one or more of the following parameters: SC-MCCH carrier configuration information, SC-MCCH modification period (SC-MCCH modification period, MP), SC-MCCH repetition period (SC-MCCH repetition period, RP), SC-MCCH transmission offset, and SC-MCCH scheduling information.

Among them, the carrier configuration information of the SC-MCCH is used to indicate on which carrier the SC-MCCH is transmitted. MP is used to indicate how long the SC-MCCH may change. Optionally, the duration of the change can be in units of frames; RP is used to indicate how long the SC-MCCH will be sent repeatedly within a change period Optionally, the duration of repeated transmission may be in units of frames; the transmission offset of the SC-MCCH is used to indicate the offset of the transmission frame of the SC-MCCH relative to the beginning of the cycle within the starting position of a repetition period. The SC-MCCH scheduling information is mainly DRX configuration information.

For example, the configuration information of the first NPDCCH used to schedule the SC-MCCH may include one or more of the following parameters: R _max , G, and α _offset . Among them, the period of the search space is G*R _max (milliseconds), the duration in each period is R _max valid downlink subframes, and the starting position is offset from the starting position of each period backward by G *R _max *α _offset (milliseconds).

Step 2: The terminal device receives the first NPDCCH according to the configuration information of the first NPDCCH, and the CRC of the first NPDCCH is scrambled by SC-RNTI. The first NPDCCH carries a first DCI, and the first DCI carries SC-MCCH scheduling information.

Step 3: The terminal device receives the SC-MCCH according to the configuration information of the SC-MCCH and the scheduling information of the first DCI. The SC-MCCH includes the configuration information of the SC-MTCH and the configuration information of the second NPDCCH used to schedule the SC-MTCH . Optionally, the configuration information for the SC-MTCH may include one or more sets of SC-MTCH configuration information. For each set of SC-MTCH configuration information, refer to the record in the third embodiment above, which will not be described here. Optionally, the configuration information for the SC-MTCH may include the first configuration information in the process shown in FIG. 2 above.

Step 4: The terminal device receives the second NPDCCH according to the configuration information of the second NPDCCH. The CRC of the first NPDCCH is scrambled by G-RNTI. The second NPDCCH carries second DCI, and the second DCI carries SC-MTCH scheduling information.

Step 5: The terminal device receives the SC-MTCH according to the configuration information of the SC-MTCH and the scheduling information of the second DCI, and the SC-MTCH carries the multicast service data.

Optionally, in the embodiment of this application, the second DCI can schedule SC-MTCH, the service package of the SC-MTCH can include one or more SC-MTCH TB, and the second DCI can schedule multiple SC-MTCHs TB. The second DCI in the ninth embodiment may correspond to the first DCI in the first to eighth embodiments.

Optionally, in order to increase the coverage of the SC-PTM, as shown in FIG. 4, the system message, the first NPDCCH, the second NPDCCH, the SC-MCCH, and the SC-MTCH need to be repeatedly sent.

It can be understood that, in the embodiments of the present application, different embodiments may be used alone, or different embodiments may also be used in combination with each other, and the use of different embodiments is not limited in the present application.

In the above-mentioned embodiments provided in the present application, the methods provided in the embodiments of the present application are respectively introduced from the perspectives of the interaction between the network device, the terminal, the network device and the terminal, and the interaction between the terminal and the terminal. In order to implement the functions in the methods provided in the above embodiments of the present application, the network device and the terminal may include hardware structures and/or software modules, and the above functions are implemented in the form of hardware structures, software modules, or hardware structures plus software modules. Whether one of the above-mentioned functions is executed in a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraint conditions of the technical solution.

Example ten

An embodiment of the present application also provides an apparatus 500, which includes a processing module 501 and a transceiver module 502.

Example 1: The apparatus 500 is used to implement the function of the terminal device in the above method. The device can be a terminal device or a device in a terminal device. Among them, the device may be a chip system. In the embodiments of the present application, the chip system may be composed of chips, or may include chips and other discrete devices.

Wherein, the transceiver module 502 is configured to receive the first configuration information sent by the network device;

The processing module 501 is configured to determine a first transmission mode or a second transmission mode according to the first configuration information;

For the description of the first transmission mode and the second transmission mode, reference may be made to the records in the fourth embodiment, the fifth embodiment, and the sixth embodiment, and the description is omitted here.

The transceiver module 502 is further configured to receive the first DCI sent by the network device and multiple TBs scheduled by the first DCI according to the first transmission mode or the second transmission mode.

In Example 1, for the specific execution process of the processing module 501 and the transceiver module 502, refer to the record on the terminal device side in the above method embodiment, which is not described here.

Example 2: The apparatus 500 is used to implement the function of the network device in the above method. The device can be a network device or a device in a network device. Among them, the device may be a chip system. In the embodiments of the present application, the chip system may be composed of chips, or may include chips and other discrete devices.

The processing module 501 is used to determine the first configuration information, the first DCI, and multiple TBs scheduled by the first DCI.

Wherein, the first configuration information is used by the terminal device to determine the first transmission mode or the second transmission mode. For the description of the first transmission mode and the second transmission mode, please refer to the fourth and fifth embodiments above. The record in the sixth embodiment will not be described here.

The transceiver module 502 is configured to send the first configuration information, the first DCI, and multiple TBs scheduled by the first DCI to a terminal device.

In the second example, for the specific execution process of the processing module 501 and the transceiver module 502, please refer to the record on the network device side in the above method embodiment, which will not be described here. The division of modules in the embodiments of the present application is illustrative, and is only a logical function division. In actual implementation, there may be other division methods. In addition, the functional modules in the various embodiments of the present application may be integrated into one process. In the device or module, it can also exist alone physically, or two or more modules can be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware or software functional modules.

Example 11

Similar to the above-mentioned concept, as shown in FIG. 6, an embodiment of the present application provides an apparatus 600.

Example 1: The device 600 is used to implement the function of the terminal device in the above method. The device may be a terminal device or a device in a terminal device.

The apparatus 600 includes at least one processor 601, configured to implement the functions of the terminal device in the foregoing method. For example, the processor 601 may determine the first transmission mode or the second transmission mode according to the first configuration information. For the description of the first transmission mode and the second transmission mode, please refer to the records in the fourth embodiment, the fifth embodiment and the sixth embodiment above, and the description is omitted here.

The device 600 may also include at least one memory 602 for storing program instructions and/or data. The memory 602 is coupled with the processor 601. The coupling in the embodiments of the present application is an interval coupling or a communication connection between devices, units or modules, and may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules. The processor 601 may cooperate with the memory 602 to operate. The processor 601 may execute program instructions stored in the memory 602. At least one of the at least one memory may be included in the processor.

The apparatus 600 may further include a communication interface 603 for communicating with other devices through a transmission medium, so that the apparatus used in the apparatus 600 can communicate with other devices. Exemplarily, the communication interface 603 may be a transceiver, circuit, bus, module, pin, or other type of communication interface, and the other device may be a network device. The processor 601 uses the communication interface 603 to send and receive data, and is used to implement the method in the foregoing embodiment.

In Example 1, for the specific working process of the processor 601 and the communication interface 603, refer to the introduction on the terminal device side in the foregoing method embodiment, which will not be described here.

Example 2: The device 600 is used to implement the function of the network device in the foregoing method. The device may be a network device or a device in a network device.

The apparatus 600 includes at least one processor 601, configured to implement the function of the network device in the foregoing method. For example, the processor 601 may determine the first configuration information, the first DCI, and multiple TBs scheduled by the first DCI. The first configuration information is used to determine the first transmission mode and the second transmission mode. For the description of the first transmission mode and the second transmission mode, refer to the records in the fourth, fifth, and sixth embodiments above. No more explanation here.

The device 600 may also include a memory 602 for storing program instructions and/or data. The memory 602 is coupled with the processor 601. The coupling in the embodiments of the present application is an interval coupling or a communication connection between devices, units, or modules, and may be in telecommunication, mechanical or other forms, and is used for information exchange between devices, units, or modules. The processor 601 may cooperate with the memory 602 to operate. The processor 601 may execute program instructions stored in the memory 602. At least one of the at least one memory may be included in the processor.

In the second example, for the specific working process of the processor 601 and the communication interface 603, refer to the introduction on the network device side in the foregoing method embodiment, which will not be described here.

The embodiment of the present application does not limit the connection medium between the aforementioned communication interface 603, the processor 601, and the memory 602. In the embodiment of the present application, the memory 602, the processor 601, and the communication interface 603 are connected by a bus 604 in FIG. 6. The bus is represented by a thick line in FIG. 6, and the connection modes between other components are only for schematic illustration. , Is not limited. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, only one thick line is used in FIG. 6, but it does not mean that there is only one bus or one type of bus.

In the embodiments of the present application, the processor may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and may implement or Perform the methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.

In the embodiment of the present application, the memory may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or a volatile memory (volatile memory), for example Random-access memory (random-access memory, RAM). The memory is any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto. The memory in the embodiments of the present application may also be a circuit or any other device capable of realizing a storage function, for storing program instructions and/or data.

The methods provided in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented by software, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present invention are generated in whole or in part. The computer may be a general-purpose computer, a dedicated computer, a computer network, network equipment, user equipment, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server, or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a digital video disc (digital video disc, DVD for short)), or a semiconductor medium (for example, SSD).

Obviously, those skilled in the art can make various changes and modifications to the application without departing from the scope of the application. In this way, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application also intends to include these modifications and variations.

In the embodiments of the present application, provided that there is no logical contradiction, the embodiments can be mutually cited. For example, methods and/or terms between method embodiments can be mutually cited, such as functions and/or functions between device embodiments. Or terms may refer to each other, for example, functions and/or terms between the device embodiment and the method embodiment may refer to each other.

In the embodiments of the present application, "at least one" refers to one or more, and "multiple" refers to two or more. "And/or" describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone, where A, B can be singular or plural. The character "/" generally indicates that the associated objects are in an "or" relationship. "The following at least one item (a)" or similar expressions refers to any combination of these items, including any combination of a single item (a) or plural items (a). For example, at least one of a, b, or c can mean: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, c can be single or multiple.

Claims

A communication method, characterized in that it comprises:

The terminal device receives the first configuration information sent by the network device;

The terminal device determines the first transmission mode or the second transmission mode according to the first configuration information;

Wherein, in the first transmission mode, the first downlink control information DCI adopts a first format, the multiple transmission blocks TB scheduled by the first DCI adopt a transmission mode with a scheduling interval, and in the second transmission mode Where the first DCI adopts a second format, and the multiple TBs scheduled by the first DCI adopt a transmission mode without scheduling interval;

The terminal device receives the first DCI sent by the network device and the multiple TBs scheduled by the first DCI according to the first transmission mode or the second transmission mode.
The method according to claim 1, wherein the first configuration information includes a first parameter, and the first parameter indicates the number of TBs scheduled by the first DCI, and the terminal device according to the first The configuration information to determine the first transmission mode or the second transmission mode includes:

The value of the first parameter is a first value, and the terminal device determines the first transmission mode;

Alternatively, the value of the first parameter is a second value, and the terminal device determines the second transmission mode.
The method according to claim 1, wherein the first configuration information includes a first parameter, and the first parameter indicates the number of TBs scheduled by the first DCI, and the terminal device according to the first The configuration information to determine the first transmission mode or the second transmission mode includes:

The first parameter is configured, and the terminal device determines the first transmission mode;

Or, the first parameter is not configured, and the terminal device determines the second transmission mode.
The method according to any one of claims 1 to 3, wherein the first configuration information includes a second parameter, and the second parameter indicates that the network device supports the first DCI to schedule multiple TBs Or, the second parameter indicates that the network device does not support the first DCI to schedule multiple TBs, and the method further includes:

According to the second parameter, the terminal device determines that the network device supports the first DCI to schedule multiple TBs, or determines that the network device does not support the first DCI to schedule multiple TBs.
The method according to any one of claims 2 to 4, wherein for each single-cell multicast traffic channel SC-MTCH, the first parameter and/or the second parameter are independently configured.
The method according to claim 1, wherein the first configuration information includes a first configuration parameter list and a second configuration parameter list, and the terminal device determines a first transmission mode or a second configuration parameter list according to the first configuration information. The second transmission method includes:

Determining, by the terminal device, that the first configuration parameter list corresponds to a first transmission mode;

Alternatively, the terminal device determines that the second configuration parameter list corresponds to the second transmission mode.
The method according to claim 6, wherein the number of SC-MTCH configuration information groups included in the first configuration parameter list is a first number, and the SC-MTCH configuration information groups included in the second configuration parameter list The number of information groups is a second number, and the sum of the first number and the second number does not exceed a preset value.
The method according to any one of claims 1 to 7, wherein:

The multiple TBs scheduled by the first DCI adopt a scheduling interval transmission mode, including: the multiple TBs scheduled by the first DCI include a first TB and a second TB, and the first TB and the second TB are The domains are adjacent, and there is a scheduling interval between the first TB and the second TB;

The multiple TBs scheduled by the first DCI adopt a transmission mode without a scheduling interval, including: there is no scheduling interval between any two adjacent TBs in the time domain among the multiple TBs scheduled by the first DCI.
A communication method, characterized in that it comprises:

The network device sends the first configuration information to the terminal device;

Wherein, the first configuration information is used by the terminal device to determine a first transmission mode or a second transmission mode. In the first transmission mode, the first downlink control information DCI adopts a first format, and the first Multiple transmission block TBs scheduled by one DCI adopt a transmission mode with scheduling interval. In the second transmission mode, the first DCI adopts the second format, and the multiple TBs scheduled by the first DCI adopt no scheduling interval. Transmission method;

The network device sends the first DCI and the multiple TBs scheduled by the first DCI to the terminal device.
9. The method of claim 9, wherein the first configuration information includes a first parameter, and the first parameter indicates the number of TBs scheduled by the first DCI;

Wherein, the value of the first parameter is a first value, which represents the first transmission mode; or, the value of the first parameter is a second value, which represents the second transmission mode.
9. The method of claim 9, wherein the first configuration information includes a first parameter, and the first parameter indicates the number of TBs scheduled by the first DCI;

Wherein, the first parameter is configured, indicating the first transmission mode; or, the first parameter is not configured, indicating the second transmission mode.
The method according to any one of claims 9 to 11, wherein the first configuration information includes a second parameter, and the second parameter indicates that the network device supports the first DCI to schedule multiple TBs Or, the second parameter indicates that the network device does not support the first DCI to schedule multiple TBs.
The method according to any one of claims 10 to 12, wherein for each single-cell multicast traffic channel SC-MTCH, the first parameter and/or the second parameter are independently configured.
The method according to claim 9, wherein the first configuration information includes a first configuration parameter list and a second configuration parameter list, the first configuration parameter list corresponds to the first transmission mode, and the second configuration parameter list The parameter list corresponds to the second transmission mode.
The method according to claim 14, wherein the number of SC-MTCH configuration information groups included in the first configuration parameter list is a first number, and the SC-MTCH configuration information groups included in the second configuration parameter list The number of information groups is a second number, and the sum of the first number and the second number does not exceed a preset value.
The method according to any one of claims 9 to 15, wherein:

The multiple TBs scheduled by the first DCI adopt a scheduling interval transmission mode, including: the multiple TBs scheduled by the first DCI include a first TB and a second TB, and the first TB and the second TB TBs are adjacent in the time domain, and there is a scheduling interval between the first TB and the second TB;

The multiple TBs scheduled by the first DCI adopt a transmission mode without a scheduling interval, including: there is no scheduling interval between any two adjacent TBs in the time domain among the multiple TBs scheduled by the first DCI.
A communication device, characterized by comprising:

The transceiver module is used to receive the first configuration information sent by the network device;

A processing module, configured to determine a first transmission mode or a second transmission mode according to the first configuration information;

Wherein, in the first transmission mode, the first downlink control information DCI adopts a first format, the multiple transmission blocks TB scheduled by the first DCI adopt a transmission mode with a scheduling interval, and in the second transmission mode Where the first DCI adopts a second format, and the multiple TBs scheduled by the first DCI adopt a transmission mode without scheduling interval;

The transceiver module is further configured to receive the first DCI sent by the network device and multiple TBs scheduled by the first DCI according to the first transmission mode or the second transmission mode.
The apparatus according to claim 17, wherein the first configuration information includes a first parameter, and the first parameter indicates the number of TBs scheduled by the first DCI, and the processing module is specifically configured to:

The value of the first parameter is a first value, and the first transmission mode is determined;

Alternatively, the value of the first parameter is a second value, and the second transmission mode is determined.
The apparatus according to claim 17, wherein the first configuration information includes a first parameter, and the first parameter indicates the number of TBs scheduled by the first DCI, and the processing module is specifically configured to:

The first parameter is configured to determine the first transmission mode;

Or, the first parameter is not configured, and the second transmission mode is determined.
The apparatus according to any one of claims 17 to 19, wherein the first configuration information includes a second parameter, and the second parameter indicates that the network device supports the first DCI to schedule multiple TBs Or, the second parameter indicates that the network device does not support the first DCI to schedule multiple TBs, and the processing module is further configured to:

According to the second parameter, it is determined that the network device supports the first DCI to schedule multiple TBs, or it is determined that the network device does not support the first DCI to schedule multiple TBs.
The apparatus according to any one of claims 18 to 20, wherein for each single-cell multicast traffic channel SC-MTCH, the first parameter and/or the second parameter are independently configured.
The apparatus according to claim 17, wherein the first configuration information includes a first configuration parameter list and a second configuration parameter list, and the processing module is specifically configured to:

Determining that the first configuration parameter list corresponds to the first transmission mode;

Or, it is determined that the second configuration parameter list corresponds to the second transmission mode.
The apparatus according to claim 22, wherein the number of SC-MTCH configuration information groups included in the first configuration parameter list is a first number, and the SC-MTCH configuration information groups included in the second configuration parameter list The number of information groups is a second number, and the sum of the first number and the second number does not exceed a preset value.
The device according to any one of claims 17 to 23, wherein:

The multiple TBs scheduled by the first DCI adopt a scheduling interval transmission mode, including: the multiple TBs scheduled by the first DCI include a first TB and a second TB, and the first TB and the second TB are The domains are adjacent, and there is a scheduling interval between the first TB and the second TB;

The multiple TBs scheduled by the first DCI adopt a transmission mode without a scheduling interval, including: there is no scheduling interval between any two adjacent TBs in the time domain among the multiple TBs scheduled by the first DCI.
A communication device, characterized by comprising:

A processing module, configured to determine first configuration information, first downlink control information DCI, and multiple transmission blocks TB scheduled by the first DCI;

A transceiver module, configured to send the first configuration information, the first DCI, and multiple TBs scheduled by the first DCI to a terminal device;

The first configuration information is used by the terminal device to determine a first transmission mode or a second transmission mode. In the first transmission mode, the first DCI adopts a first format, and the first DCI The multiple scheduled TBs adopt a transmission mode with a scheduling interval. In the second transmission mode, the first DCI adopts a second format, and the multiple TBs scheduled by the first DCI adopt a transmission mode without a scheduling interval.
The apparatus according to claim 25, wherein the first configuration information includes a first parameter, and the first parameter indicates the number of TBs scheduled by the first DCI;

Wherein, the value of the first parameter is a first value, which represents the first transmission mode; or, the value of the first parameter is a second value, which represents the second transmission mode.
The apparatus according to claim 25, wherein the first configuration information includes a first parameter, and the first parameter indicates the number of TBs scheduled by the first DCI;

Wherein, the first parameter is configured, indicating the first transmission mode; or, the first parameter is not configured, indicating the second transmission mode.
The apparatus according to any one of claims 25 to 27, wherein the first configuration information includes a second parameter, and the second parameter indicates that the network device supports the first DCI to schedule multiple TBs Or, the second parameter indicates that the network device does not support the first DCI to schedule multiple TBs.
The apparatus according to any one of claims 26 to 28, wherein for each single-cell multicast traffic channel SC-MTCH, the first parameter and/or the second parameter are independently configured.
The apparatus according to claim 25, wherein the first configuration information includes a first configuration parameter list and a second configuration parameter list, the first configuration parameter list corresponds to a first transmission mode, and the second configuration parameter list The parameter list corresponds to the second transmission mode.
The apparatus according to claim 30, wherein the number of SC-MTCH configuration information groups included in the first configuration parameter list is a first number, and the SC-MTCH configuration information groups included in the second configuration parameter list The number of information groups is a second number, and the sum of the first number and the second number does not exceed a preset value.
The device according to any one of claims 25 to 31, wherein:

The multiple TBs scheduled by the first DCI adopt a scheduling interval transmission mode, including: the multiple TBs scheduled by the first DCI include a first TB and a second TB, and the first TB and the second TB TBs are adjacent in the time domain, and there is a scheduling interval between the first TB and the second TB;

The multiple TBs scheduled by the first DCI adopt a transmission mode without a scheduling interval, including: there is no scheduling interval between any two adjacent TBs in the time domain among the multiple TBs scheduled by the first DCI.
A communication device, comprising a processor and a memory, the memory stores instructions, and when the processor executes the instructions, the device executes the method according to any one of claims 1 to 16 .
A computer-readable storage medium, characterized by comprising instructions, which when run on a computer, causes the computer to execute the method according to any one of claims 1 to 16.