WO2020087540A1

WO2020087540A1 - Control information transmission method, devices, and storage medium

Info

Publication number: WO2020087540A1
Application number: PCT/CN2018/113830
Authority: WO
Inventors: 贺传峰
Original assignee: Oppo广东移动通信有限公司
Priority date: 2018-11-02
Filing date: 2018-11-02
Publication date: 2020-05-07
Also published as: CN112237037A; CN112237037B

Abstract

Disclosed in the present invention is a control information transmission method, comprising: a terminal device determines rate matching information in a time unit on the basis of downlink control information, the rate matching information being used by the terminal device for data reception. Embodiments of the present invention further provide another control information transmission method, a terminal device, a network device, and a storage medium.

Description

Control information transmission method, equipment and storage medium

Technical field

The present invention relates to the field of wireless communication technology, and in particular, to a control information transmission method, device, and storage medium.

Background technique

In the 5G New Radio (NR) system, the terminal equipment (User Equipment, UE) needs to be rate-matched according to the actual transmission position of the synchronization signal block (Synchronization Signal); Uncertainty, in a transmission window, the number of candidate transmission positions of the SSB configured by the network device is greater than the number of SSBs actually sent by the network device; therefore, how to determine the actual transmission position of the SSB among the candidate transmission positions of the SSB is urgent solved problem.

Summary of the invention

To solve the above technical problems, embodiments of the present invention provide a control information transmission method, device, and storage medium, and the UE can determine the actual sending location of the SSB.

In a first aspect, an embodiment of the present invention provides a control information transmission method, including: a UE determining rate matching information in a time unit based on DCI; the rate matching information is used for data reception by the terminal device.

In a second aspect, an embodiment of the present invention provides a method for transmitting control information, including: a network device sends DCI to a UE, where the DCI is used by the terminal device to determine rate matching information for the terminal device to receive data in a time unit .

In a third aspect, an embodiment of the present invention provides a terminal device. The terminal device includes: a processing unit configured to determine rate matching information in a time unit based on DCI; the rate matching information is used by the terminal device to perform data receive.

According to a fourth aspect, an embodiment of the present invention provides a network device, including: a sending unit configured to send DCI to a terminal device, where the DCI is used by the terminal device to determine a rate matching for the terminal device to receive data in a time unit information.

According to a fifth aspect, an embodiment of the present invention provides a terminal device, including: a processor and a memory for storing a computer program that can be run on the processor, where the processor is used to execute the above when the computer program is run The steps of the method performed by the terminal device.

According to a sixth aspect, an embodiment of the present invention provides a network device, including: a processor and a memory for storing a computer program that can be run on the processor, where the processor is used to execute the above when the computer program is run The steps of the method performed by the network device.

In a seventh aspect, an embodiment of the present invention provides a storage medium that stores an executable program, and when the executable program is executed by a processor, the method executed by the terminal device described above is implemented.

In an eighth aspect, an embodiment of the present invention provides a storage medium that stores an executable program, and when the executable program is executed by a processor, the method executed by the network device described above is implemented.

In the control information transmission method provided by the embodiment of the present invention, the UE determines the position of the SSB actually sent within a time unit through the indication of the DCI, so that the UE performs rate matching of downlink data reception according to the position of the actually sent SSB to improve data Transmission efficiency.

BRIEF DESCRIPTION

Figure 1 is a schematic diagram of an SSB in the related art;

2 is a schematic diagram of the distribution of SSBs under different subcarriers in the related art;

FIG. 3 is a schematic diagram of SSB transmission by increasing SSB transmission opportunities;

4 is a schematic diagram of the structure of a communication system according to an embodiment of the invention;

5 is a schematic diagram of an optional processing flow of a control information transmission method applied to a terminal device according to an embodiment of the present invention;

6 is a schematic diagram of a UE performing rate matching according to SSB location information according to an embodiment of the present invention;

7 is a schematic diagram of an optional processing flow of a control information transmission method applied to a network device according to an embodiment of the present invention;

8 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

9 is a schematic structural diagram of a network device according to an embodiment of the present invention;

10 is a schematic diagram of a hardware composition structure of an electronic device provided by an embodiment of the present invention.

detailed description

In order to understand the features and technical contents of the embodiments of the present invention in more detail, the following describes the implementation of the embodiments of the present invention in detail with reference to the drawings. The accompanying drawings are for reference only and are not intended to limit the embodiments of the present invention.

Before describing the embodiments of the present invention in detail, the relevant content of the NR system will be briefly described.

Common channels and signals in the NR system, such as synchronization signals and broadcast channels, need to cover the entire cell through multi-beam scanning so that UEs in the cell can receive them. Multi-beam transmission of SS is realized by defining a SS / Physical Broadcast Channel (Physical Broadcast Channel, PBCH) set. An SS burst contains one or more SS / PBCH blocks. An SS / PBCH block is used to carry the synchronization signal and broadcast channel of a beam. Therefore, an SS / PBCH burst can contain the same beam synchronization signal as the number of SS / PBCH blocks in the cell. The maximum number of SS / PBCH blocks L is related to the frequency band of the system: when the frequency of the system is up to 3 GHz, the value of L is 4; when the frequency range of the system is from 3 GHz to 6 GHz, the value of L is 8; when the frequency of the system When the range is 6 GHz to 52.6 GHz, the value of L is 64.

A schematic diagram of an SS / PBCH block (hereinafter referred to as SSB) is shown in FIG. 1, including a symbolic primary synchronization signal (Primary Synchronization Signal, PSS), a symbolic (Secondary Synchronization Signal, SSS), and two symbols of new wireless NR-PBCH (New Radio Access Technology-Physical Broadcast Channel CHannel).

All SS / PBCH blocks in the SS / PBCH burst set are sent within a 5ms time window and are repeatedly sent at a certain period. The sending period is configured by the high-level parameter SSB-timing, including 5ms, 10ms, 20ms, 40ms 80ms, 160ms, etc.

Schematic diagram of the distribution of SSB under different subcarriers, as shown in Figure 2; Figure 2 shows the time slot distribution of SS / PBCH blocks in different subcarrier verification and frequency bands, with 15kHz subcarrier spacing, L = 4 For example, a slot contains 14 symbols and can carry two SS / PBCH blocks. Four SS / PBCH blocks are distributed in the first two slots in the 5ms time window. Among them, L is the maximum number of SSBs, and the actual number of SSBs sent may be less than L. The network device notifies the UE of the location of the SSB actually sent through the system information in the form of bitmap.

The following is a brief description of unlicensed spectrum and SSB transmission on unlicensed spectrum.

Unlicensed spectrum is a spectrum allocated by countries and regions that can be used for radio equipment communication. This spectrum is generally regarded as a shared spectrum, that is, as long as the communication equipment in different communication systems meets the regulatory requirements set by the country or region on the spectrum, it can be To use this spectrum, there is no need to apply to the government for a proprietary spectrum license. In order to allow various communication systems that use unlicensed spectrum for wireless communication to coexist amicably on this spectrum, some countries or regions have stipulated the legal requirements that must be met when using unlicensed spectrum. For example, in Europe, communication devices follow the "Listen-Before-Talk" (LBT) principle, that is, communication devices need to perform channel interception before sending signals on channels of unlicensed spectrum. When the channel interception result is that the channel is idle, the communication device can transmit signals; if the channel interception result of the communication device on the channel of the unlicensed spectrum is that the channel is busy, the communication device cannot transmit signals. And in order to ensure fairness, in a transmission, the communication device uses the channel of the unlicensed spectrum for signal transmission for a period of time that cannot exceed the maximum channel occupation time (Maximum Channel Occupation Time, MCOT).

In NR systems, NR technology is used on unlicensed spectrum to achieve data transmission. During the SSB transmission process, due to the possibility of LBT failure, the SSB transmission time defined in the NR may not be able to successfully send the SSB. An improved solution is to increase the sending opportunity of SSB and define the sending time of the new SSB as an alternative; when the SSB cannot be sent at a sending time due to LBT failure, the SSB is sent at the alternative sending time. Schematic diagram of SSB transmission by increasing the SSB transmission opportunity. As shown in Figure 3, when the LBT performed before the transmission time of SSB index 0 fails, channel monitoring continues. If the LBT performed before SSB index 2 succeeds, the SSB index 2 starts to send the remaining SSB, and after sending SSB index 7 and then sends the SSB index 0 and SSB index 1 that were not successfully sent before. Among them, the actual sending time of SSB index0 and SSB index1 is the alternative sending time. According to the moment when LBT succeeds, the actual sending time of SSB may be at the initial sending time or the alternative sending time. Fig. 3 is only used as a solution to increase the SSB transmission opportunity, and there are other optional solutions, which will not be repeated here.

In addition, due to the possibility of failure to perform LBT on the unlicensed spectrum, SSB transmission may not be transmitted according to a predefined pattern; an improvement scheme is to introduce multiple candidate positions within a time window for possible SSB sent. For example, in the frequency band below 6GHz, there are up to 8 SSB indexes, and the network device can broadcast the specific SSB transmission position of the UE through an 8-bit bitmap. Each bit represents the transmission status of an SSB or not. The UE performs rate matching when receiving downlink transmission data. In the unlicensed spectrum, since the timing of obtaining the channel usage right is uncertain, it is impossible to notify the terminal of the actual transmission position of the SSB through only semi-static system information. At this time, it is necessary to determine at which positions of the multiple candidate positions the SSB actually sends the SSB for rate matching when the UE receives downlink transmission data.

Considering the uncertainty in obtaining the channel usage rights on the unlicensed spectrum, in a transmission window, the number of SSB candidate positions configured by the network device is greater than the number of SSBs actually sent by the network device X. That is to say, for each demodulation reference signal (DRS) transmission window, the network device can determine to use the X candidate positions available from the Y candidate positions according to the detection result of the LBT in the DRS transmission window To transmit SSB, the positions of X SSBs actually transmitted in different DRS transmission windows may be different. Therefore, it is necessary to consider how to indicate the position of the SSB actually transmitted in a DRS window. In the NR transmission technology on the unlicensed spectrum below 6 GHz, an improvement scheme is that the maximum number of SSB transmissions is 8, and there is a maximum number of Y = 64 candidate transmission positions in a time window.

The invention provides a control information transmission method. The information processing method of the embodiment of the present application can be applied to various communication systems, such as: Global Mobile Communication (Global System of Mobile Communication, GSM) system, Code Division Multiple Access (Code Division Division) Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), Long Term Evolution (LTE) system, LTE frequency division Duplex (Frequency Division Duplex, FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunications System (Universal Mobile Telecommunication System, UMTS), Global Interoperability Microwave Access (Worldwide Interoperability for Microwave Access, WiMAX) Communication system or 5G system, etc.

Exemplarily, the communication system 100 applied in the embodiment of the present application is shown in FIG. 4. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, terminal). The network device 110 can provide communication coverage for a specific geographic area, and can communicate with terminal devices located within the coverage area. Optionally, the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system (Evolutional Node B, eNB or eNodeB), or a wireless controller in the Cloud Radio Access Network (CRAN), or the network equipment can be a mobile switching center, a relay station, an access point, an in-vehicle device, Wearable devices, hubs, switches, bridges, routers, network-side devices in 5G networks or network devices in future public land mobile networks (Public Land Mobile Network, PLMN), etc.

The communication system 100 also includes at least one terminal device 120 within the coverage of the network device 110. As used herein, "terminal equipment" includes, but is not limited to, connections via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Lines (DSL), digital cables, and direct cable connections ; And / or another data connection / network; and / or via wireless interfaces, such as for cellular networks, wireless local area networks (Wireless Local Area Network, WLAN), digital TV networks such as DVB-H networks, satellite networks, AM- FM broadcast transmitter; and / or another terminal device configured to receive / transmit communication signals; and / or Internet of Things (IoT) equipment. A terminal device configured to communicate through a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal", or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular phones; Personal Communication Systems (PCS) terminals that can combine cellular radiotelephones with data processing, fax, and data communication capabilities; can include radiotelephones, pagers, Internet / internal PDA with network access, web browser, notepad, calendar, and / or Global Positioning System (GPS) receiver; and conventional laptop and / or palm-type receivers or others including radiotelephone transceivers Electronic device. Terminal equipment can refer to access terminal, user equipment (User Equipment, UE), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or User device. Access terminals can be cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital processing (Personal Digital Assistant (PDA), wireless communication Functional handheld devices, computing devices, or other processing devices connected to a wireless modem, in-vehicle devices, wearable devices, terminal devices in a 5G network, or terminal devices in a future-evolving PLMN, etc.

Optionally, terminal equipment 120 may perform terminal direct connection (Device to Device, D2D) communication.

Alternatively, the 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.

FIG. 4 exemplarily shows one network device and two terminal devices. Optionally, the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within the coverage area. This application The embodiment does not limit this.

Optionally, the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.

It should be understood that the devices with communication functions in the network / system in the embodiments of the present application may be referred to as communication devices. Taking the communication system 100 shown in FIG. 4 as an example, the communication device may include a network device 110 and a terminal device 120 with a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here. The communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities, and other network entities, which are not limited in the embodiments of the present application.

The optional processing flow of the control information transmission method applied to the terminal device provided by the embodiment of the present invention, as shown in FIG. 5, includes the following steps:

In step S201, the terminal device determines the rate matching information in the time unit based on the downlink control information.

In the embodiment of the present invention, the rate matching information is used for data reception by the terminal device.

During specific implementation, the UE first detects the first search space and detects the physical downlink control channel (Physical Downlink Control, PDCCH) to obtain DCI; the DCI is used to carry the rate matching information; optionally, the DCI is DCI format1-0 or the DCI is DCI format1-1.

Wherein, the first search space is a UE-specific search space; correspondingly, the DCI is a UE-specific DCI. Optionally, the time unit is a time unit where a downlink scheduled data channel is located; the time unit may be one slot, or other values.

In some embodiments, the rate matching information is SSB location information.

Optionally, the location information of the SSB may be whether the SSB is sent at the candidate sending position in the time unit; taking the scheduled time unit as a slot for example, since the sending position of the SSB in a slot is predefined , A bitmap carrying 2 bits of information through DCI, used to indicate whether the SSB is sent at the sending location within a slot. For example, if the sending positions of two SSBs are predefined in a slot, whether the SSB is sent at the corresponding position can be judged by the bit value corresponding to the sending positions of the two SSBs in the bitmap. For example, the bit values corresponding to the transmission positions of the two SSBs are 10, the bit value 1 indicates that the corresponding position transmits the SSB, and the bit value 0 indicates that the corresponding position does not transmit the SSB.

Optionally, the location information of the SSB may also be the transmission situation of the SSB in the time unit. Since the sending position of the SSB in a slot is predefined, taking the actual transmitted SSB always occupying the candidate sending position of the continuous SSB as an example, the sending situation of the SSB in the time unit includes:

No SSB is transmitted at the candidate transmission location within the time unit, all SSBs are transmitted at the candidate transmission location within the time unit, and only the first SSB is transmitted at the candidate transmission location within the time unit.

Optionally, the location information of the SSB is: the last sending location of the SSB in the time unit. Since the SSB is transmitted at consecutive candidate positions, when the last transmission position of the SSB in the time unit is determined, the candidate transmission position before the last transmission position also transmits the SSB.

Based on the above embodiment, the UE determines the location information of the SSB in the time unit according to the indication of the DCI, that is, determines the rate matching information in the time unit.

In other embodiments, the UE cannot determine the rate matching information in the time unit based only on the DCI, and needs to determine the bitmap based on the actual transmission position of the SSB. In specific implementation, the UE obtains a bitmap of the actual transmission position of the SSB from the network device through a system message; the UE can determine the candidate transmission of the SSB within the time unit through a transmission position index of the SSB indicated in the DCI and the received bitmap Whether to send SSB at the location. Here, one transmission position of the SSB indicated in the DCI may be the actual transmission position of the last SSB, or may be the actual transmission position of any SSB.

For example, the 8-bit bitmap is used to characterize the actual sending position of the SSB. The bitmap value is 01000100. When the sending position of the last SSB indicated by the DCI corresponds to the 6th bit value in the 8-bit bitmap, the UE can determine the 8-bit bitmap. The SSB is sent at the position corresponding to the second bit value in the bitmap. When the sending position of the first SSB indicated by the DCI corresponds to the 6th bit value in the 8-bit bitmap, the UE may determine that the SSB is not sent at another position in the 8-bit bitmap.

In the embodiment of the present invention, when the network device schedules the downlink transmission of the UE, the UE is notified by DCI of the SSB location information in the time unit where the physical downlink shared channel (PDSCH) transmission is located. After receiving the location information of the SSB, the UE performs rate matching on resource elements (Resources, REs) overlapping the resources of the scheduled PDSCH at the indicated location of the SSB when receiving the PDSCH, so as to correctly receive the PDSCH. As shown in FIG. 6, the slot where SSB index 2 and 3 are located is the same as the slot where PDSCH is located. DCI indicates the location information of the SSB in the PDSCH scheduling resource, that is, whether SSB index 2, 3 in the slot is actually sent; when the slot SSB indexes 2 and 3 are sent internally. When receiving the PDSCH, the UE performs rate matching on the REs overlapping the resources of the scheduled PDSCH at the indicated SSB position to correctly receive the PDSCH.

The optional processing flow of the control information transmission method applied to the network device provided by the embodiment of the present invention, as shown in FIG. 7, includes the following steps:

Step S301: The network device sends DCI to the UE, where the DCI is used by the UE to determine rate matching information for the UE to receive data in a time unit.

In some embodiments, the rate matching information is SSB location information

The description of the location information of DCI and SSB in the embodiment of the present invention is the same as that in the above step S201, and is not repeated here.

An embodiment of the present invention further provides a terminal device. As shown in FIG. 8, a schematic structural diagram of the composition of the terminal device 400 includes:

The processing unit 401 is configured to determine rate matching information in a time unit based on DCI; the rate matching information is used for data reception by the terminal device.

In some embodiments, the processing unit is configured to detect a first search space to obtain the DCI, and the DCI is used to carry the rate matching information. Wherein, the rate matching information is location information of SSB.

In some embodiments, the location information of the SSB is: whether the SSB is transmitted at the candidate transmission location in the time unit; or, the location information of the SSB is: the transmission situation of the SSB in the time unit Or, the location information of the SSB is: the last sending location of the SSB in the time unit.

Wherein, the transmission situation of the SSB in the time unit includes: no SSB is transmitted in the candidate transmission position in the time unit, all SSBs are transmitted in the candidate transmission position in the time unit, and the Only the first SSB is transmitted at the candidate transmission position within the time unit.

An application scenario of an embodiment of the present invention is that the SSB is sent at consecutive candidate positions.

In some embodiments, the processing unit 401 is configured to obtain a bitmap of the actual sending location of the SSB from the network device; based on the bitmap and a sending location index index of the SSB indicated in the DCI, determine Whether the SSB is transmitted at the candidate transmission position of the SSB in the time unit.

In the embodiment of the present invention, the DCI is a DCI used for downlink scheduling, and the time unit is a time unit where a downlink scheduled data channel is located.

An embodiment of the present invention also provides a network device. As shown in FIG. 9, a schematic structural diagram of the composition of the network device 500 includes:

The sending unit 501 is configured to send DCI to U, where the DCI is used by the terminal device to determine rate matching information for the terminal device to receive data in a time unit.

Wherein, the DCI is located in the first search space of the terminal device, and the DCI is used to carry the rate matching information. The rate matching information is SSB location information.

In some embodiments, the sending unit 501 is further configured to send a bitmap of the actual sending position of the SSB to the terminal device; the bitmap and a sending position index index of the SSB indicated in the DCI, use The terminal device determines whether the SSB is transmitted at the candidate transmission position of the SSB within the time unit.

In the embodiment of the present invention, the UE determines the location of the actually transmitted SSB in a scheduled time unit through dedicated DCI, so that the UE performs rate matching of downlink data reception according to the location of the actually transmitted SSB.

Embodiments of the invention also provide a terminal device, including a processor and a memory for storing a computer program that can run on the processor, where the processor is used to execute the control performed by the terminal device when the computer program is run Information transmission method steps.

An embodiment of the present invention further provides a network device, including a processor and a memory for storing a computer program that can run on the processor, where the processor is used to execute Steps of control information transmission method.

10 is a schematic diagram of a hardware composition structure of an electronic device (network device or terminal device) according to an embodiment of the present invention. The electronic device 700 includes: at least one processor 701, a memory 702, and at least one network interface 704. The various components in the electronic device 700 are coupled together via a bus system 705. It can be understood that the bus system 705 is used to implement connection and communication between these components. In addition to the data bus, the bus system 705 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, various buses are marked as the bus system 705 in FIG.

It can be understood that the memory 702 may be a volatile memory or a non-volatile memory, and may also include both volatile and non-volatile memory. Among them, the non-volatile memory may be ROM, programmable read-only memory (PROM, Programmable Read-Only Memory), erasable programmable read-only memory (EPROM, Erasable Programmable Read-Only Memory), electrically erasable Programmable Read Only Memory (EEPROM, Electrically Erasable, Programmable Read-Only Memory), Ferromagnetic Random Access Memory (FRAM), Flash Memory (Flash), Magnetic Surface Memory, CD, or CD-ROM (CD -ROM, Compact, Disc, Read-Only, Memory); the magnetic surface memory can be either disk storage or tape storage. The volatile memory may be a random access memory (RAM, Random Access Memory), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static random access memory (SRAM, Static Random Access Memory), synchronous static random access memory (SSRAM, Synchronous Static Random Access Memory), dynamic random access Memory (DRAM, Dynamic Random Access), synchronous dynamic random access memory (SDRAM, Synchronous Dynamic Random Access Memory), double data rate synchronous dynamic random access memory (DDRSDRAM, Double Data Rate, Synchronous Dynamic Random Access Random Access Memory), enhanced Type synchronous dynamic random access memory (ESDRAM, Enhanced Synchronous Dynamic Random Access Memory), synchronous connection dynamic random access memory (SLDRAM, SyncLink Dynamic Random Access Memory), direct memory bus random access memory (DRRAM, Direct Rambus Random Access Random Access Memory ). The memory 702 described in this embodiment of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.

The memory 702 in the embodiment of the present invention is used to store various types of data to support the operation of the electronic device 700. Examples of these data include: any computer program for operating on the electronic device 700, such as an application program 7022. The program for implementing the method of the embodiment of the present invention may be included in the application program 7022.

The method disclosed in the foregoing embodiment of the present invention may be applied to the processor 701, or implemented by the processor 701. The processor 701 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 701 or an instruction in the form of software. The aforementioned processor 701 may be a general-purpose processor, a digital signal processor (DSP, Digital Processor), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and the like. The processor 701 may implement or execute the disclosed methods, steps, and logical block diagrams in the embodiments of the present invention. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present invention may be directly implemented and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium. The storage medium is located in the memory 702. The processor 701 reads the information in the memory 702 and completes the steps of the foregoing method in combination with its hardware.

In an exemplary embodiment, the electronic device 700 may be one or more application specific integrated circuits (ASIC, Application Integrated Circuit), DSP, programmable logic device (PLD, Programmable Logic Device), complex programmable logic device (CPLD , Complex Programmable Logic Device), FPGA, general-purpose processor, controller, MCU, MPU, or other electronic components to implement the aforementioned method.

Embodiments of the present application also provide a computer-readable storage medium for storing computer programs.

Optionally, the computer-readable storage medium may be applied to the network device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiments of the present application. For brevity, here No longer.

Optionally, the computer-readable storage medium may be applied to the terminal device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding process implemented by the terminal device in each method of the embodiments of the present application. No longer.

The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each flow and / or block in the flowchart and / or block diagram and a combination of the flow and / or block in the flowchart and / or block diagram may be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, special-purpose computer, embedded processing machine, or other programmable data processing device to produce a machine that enables the generation of instructions executed by the processor of the computer or other programmable data processing device An apparatus for realizing the functions specified in one block or multiple blocks of one flow or multiple flows of a flowchart and / or one block or multiple blocks of a block diagram.

These computer program instructions may also be stored in a computer-readable memory that can guide a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including an instruction device, the instructions The device implements the functions specified in one block or multiple blocks of the flowchart one flow or multiple flows and / or block diagrams.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operating steps are performed on the computer or other programmable device to produce computer-implemented processing, which is executed on the computer or other programmable device The instructions provide steps for implementing the functions specified in one block or multiple blocks of the flowchart one flow or multiple flows and / or block diagrams.

The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modification, equivalent replacement and improvement made within the spirit and principle of the present invention should be included in Within the protection scope of the present invention.

Claims

A control information transmission method, the method includes:

The terminal device determines rate matching information in a time unit based on the downlink control information DCI; the rate matching information is used for data reception by the terminal device.
The method according to claim 1, wherein the DCI is obtained by detecting a first search space by the terminal device, and the DCI is used to carry the rate matching information.
The method according to claim 1 or 2, wherein the rate matching information is position information of a synchronization signal block SSB.
The method according to claim 3, wherein the location information of the SSB is:

Whether the SSB is transmitted at the candidate transmission location within the time unit.
The method according to claim 4, wherein whether the SSB is transmitted at the candidate transmission location within the time unit includes:

Each candidate transmission position in the time unit corresponds to one bit in the bitmap, and the value of each bit is used to indicate whether the corresponding candidate transmission position transmits SSB.
The method according to claim 3, wherein the location information of the SSB is:

The transmission status of the SSB in the time unit.
The method according to claim 6, wherein the transmission situation of the SSB in the time unit includes:

No SSB is transmitted at the candidate transmission location within the time unit, all SSBs are transmitted at the candidate transmission location within the time unit, and only the first SSB is transmitted at the candidate transmission location within the time unit.
The method according to claim 3, wherein the location information of the SSB is:

In the time unit, the last sending position of the SSB.
The method according to any one of claims 6 to 8, wherein the SSB is transmitted on consecutive candidate positions.
The method according to any one of claims 1 to 3, wherein the rate matching information in the determined time unit includes:

The terminal device obtains a bitmap of the actual sending position of the SSB from the network device;

The terminal device determines whether the SSB is transmitted at the candidate transmission location of the SSB in the time unit based on the bitmap and one transmission location index index of the SSB indicated in the DCI.
The method according to any one of claims 1 to 10, wherein the DCI is DCI for downlink scheduling.
The method according to any one of claims 1 to 11, wherein the time unit is a time unit where a downlink scheduled data channel is located.
A control information transmission method, the method includes:

The network device sends downlink control information DCI to the terminal device, where the DCI is used by the terminal device to determine rate matching information for the terminal device to receive data in a time unit.
The method according to claim 13, wherein the DCI is located in a first search space of the terminal device, and the DCI is used to carry the rate matching information.
The method according to claim 13 or 14, wherein the rate matching information is position information of a synchronization signal block SSB.
The method according to claim 15, wherein the location information of the SSB is:

Whether the SSB is transmitted at the candidate transmission location within the time unit.
The method according to claim 16, wherein whether the SSB is transmitted at the candidate transmission location within the time unit includes:

Each candidate transmission position in the time unit corresponds to one bit in the bitmap, and the value of each bit is used to indicate whether the corresponding candidate transmission position transmits SSB.
The method according to claim 15, wherein the location information of the SSB is:

The transmission status of the SSB in the time unit.
The method according to claim 18, wherein the transmission situation of the SSB in the time unit includes:

No SSB is transmitted at the candidate transmission location within the time unit, all SSBs are transmitted at the candidate transmission location within the time unit, and only the first SSB is transmitted at the candidate transmission location within the time unit.
The method according to claim 15, wherein the location information of the SSB is:

In the time unit, the last sending position of the SSB.
The method according to any one of claims 18 to 20, wherein the SSB is transmitted on consecutive candidate positions.
The method according to any one of claims 13 to 15, wherein the method further comprises:

The network device sends a bitmap of the actual sending location of the SSB to the terminal device;

The bitmap and a transmission position index index of the SSB indicated in the DCI are used by the terminal device to determine whether the SSB is transmitted at the candidate transmission position of the SSB in the time unit.
The method according to any one of claims 13 to 22, wherein the DCI is DCI for downlink scheduling.
The method according to any one of claims 13 to 23, wherein the time unit is a time unit where a downlink scheduled data channel is located.
A terminal device, the terminal device includes:

The processing unit is configured to determine rate matching information in the time unit based on the downlink control information DCI; the rate matching information is used for data reception by the terminal device.
The terminal device according to claim 25, wherein the processing unit is configured to detect a first search space to obtain the DCI, and the DCI is used to carry the rate matching information.
The terminal device according to claim 25 or 26, wherein the rate matching information is position information of a synchronization signal block SSB.
The terminal device according to claim 27, wherein the location information of the SSB is:

Whether the SSB is transmitted at the candidate transmission location within the time unit.
The terminal device according to claim 28, wherein whether the SSB is transmitted at the candidate transmission location within the time unit includes:

Each candidate transmission position in the time unit corresponds to one bit in the bitmap, and the value of each bit is used to indicate whether the corresponding candidate transmission position transmits SSB.
The terminal device according to claim 27, wherein the location information of the SSB is:

The transmission status of the SSB in the time unit.
The terminal device according to claim 30, wherein the transmission situation of the SSB in the time unit includes:

No SSB is transmitted at the candidate transmission location within the time unit, all SSBs are transmitted at the candidate transmission location within the time unit, and only the first SSB is transmitted at the candidate transmission location within the time unit.
The terminal device according to claim 27, wherein the location information of the SSB is:

In the time unit, the last sending position of the SSB.
The terminal device according to any one of claims 30 to 32, wherein the SSB is transmitted on consecutive candidate positions.
The terminal device according to any one of claims 25 to 27, wherein the processing unit is configured to obtain a bitmap of the actual transmission position of the SSB from the network device; based on the bitmap and the SSB indicated in the DCI A sending location index index to determine whether the SSB is sent at the candidate sending location of the SSB in the time unit.
The terminal device according to any one of claims 25 to 34, wherein the DCI is DCI for downlink scheduling.
The terminal device according to any one of claims 25 to 35, wherein the time unit is a time unit where a downlink scheduled data channel is located.
A network device, the network device includes:

The sending unit is configured to send downlink control information DCI to the terminal device, where the DCI is used by the terminal device to determine rate matching information for the terminal device to receive data in a time unit.
The network device according to claim 37, wherein the DCI is located in a first search space of the terminal device, and the DCI is used to carry the rate matching information.
The network device according to claim 37 or 38, wherein the rate matching information is location information of the synchronization signal block SSB.
The network device according to claim 39, wherein the location information of the SSB is:

Whether the SSB is transmitted at the candidate transmission location within the time unit.
The network device according to claim 40, wherein whether the SSB is transmitted at the candidate transmission location within the time unit includes:

Each candidate transmission position in the time unit corresponds to one bit in the bitmap, and the value of each bit is used to indicate whether the corresponding candidate transmission position transmits SSB.
The network device according to claim 39, wherein the location information of the SSB is:

The transmission status of the SSB in the time unit.
The network device according to claim 40, wherein the transmission situation of the SSB in the time unit includes:

No SSB is transmitted at the candidate transmission location within the time unit, all SSBs are transmitted at the candidate transmission location within the time unit, and only the first SSB is transmitted at the candidate transmission location within the time unit.
The network device according to claim 39, wherein the location information of the SSB is:

In the time unit, the last sending position of the SSB.
The network device according to any one of claims 42 to 44, wherein the SSB is sent on consecutive candidate positions.
The network device according to any one of claims 37 to 39, wherein the sending unit is further configured to send a bitmap of the actual sending position of the SSB to the terminal device;

The bitmap and a transmission position index index of the SSB indicated in the DCI are used by the terminal device to determine whether the SSB is transmitted at the candidate transmission position of the SSB in the time unit.
The network device according to any one of claims 37 to 46, wherein the DCI is DCI for downlink scheduling.
The network device according to any one of claims 37 to 47, wherein the time unit is a time unit where a downlink scheduled data channel is located.
A terminal device includes a processor and a memory for storing a computer program that can run on the processor, wherein,

When the processor is used to execute the computer program, it executes the steps of the control information transmission method according to any one of claims 1 to 12.
A network device includes a processor and a memory for storing a computer program capable of running on the processor, wherein,

When the processor is used to execute the computer program, the steps of the control information transmission method according to any one of claims 13 to 24 are executed.
A storage medium stores an executable program, and when the executable program is executed by a processor, the control information transmission method according to any one of claims 1 to 12 is implemented.
A storage medium stores an executable program, and when the executable program is executed by a processor, the control information transmission method according to any one of claims 12 to 24 is implemented.