WO2019033392A1

WO2019033392A1 - Signal transmission method, terminal device and network device

Info

Publication number: WO2019033392A1
Application number: PCT/CN2017/098036
Authority: WO
Inventors: 陈文洪; 张治�
Original assignee: Oppo广东移动通信有限公司
Priority date: 2017-08-18
Filing date: 2017-08-18
Publication date: 2019-02-21
Also published as: CN109565768B; CN109565768A

Abstract

Disclosed are a signal transmission method, a terminal device and a network device. The method comprises: the terminal device detects downlink control information (DCI) on a physical downlink control channel (PDCCH), the DCI being used for scheduling transmission of a signal on a first physical resource; if the DCI is detected by the terminal device, the terminal device does not detect a synchronizing signal block on the first physical resource. Therefore, when the DCI is detected by the terminal device, the terminal device may not detect the synchronizing signal block on the first physical resource scheduled by the DCI, so as to reduce detection complexity of the terminal device on the synchronizing signal block.

Description

Signal transmission method, terminal device and network device

Technical field

The embodiments of the present application relate to the field of wireless communications, and, more particularly, to a method, a terminal device, and a network device for signal transmission.

Background technique

In the 5G New Radio (NR) system, the terminal device completes the initial access process by detecting a Synchronizing Signal Block (SS Block), and each synchronization signal block includes a Primary Synchronization Signal (PSS). , Secondary Synchronization Signal (SSS) and Physical Broadcast Channel (PBCH). The terminal device can detect the synchronization signal on multiple transmission resources distributed on a periodic basis, but the network device does not necessarily send the synchronization signal block on each transmission resource, and the terminal device does not know that the transmission resources can be detected. The sync signal block, if the terminal device detects the sync signal block on each transmission resource, adds unnecessary detection complexity.

Summary of the invention

The embodiment of the present application provides a method for transmitting a signal, a terminal device, and a network device, which can reduce detection complexity when the terminal device detects a synchronization signal block.

The first aspect provides a method for signal transmission, including: detecting, by a terminal device, downlink control information DCI on a physical downlink control channel PDCCH, where the DCI is used for scheduling transmission of a signal on a first physical resource; When the device detects the DCI, the synchronization signal block is not detected on the first physical resource.

Therefore, when detecting the DCI, the terminal device may not detect the synchronization signal block on the first physical resource scheduled by the DCI, thereby reducing the detection complexity of the synchronization signal block by the terminal device.

In a possible implementation manner, the method further includes: if the terminal device does not detect the DCI, detecting the synchronization signal block on the first physical resource.

In a possible implementation manner, the method further includes: when detecting the DCI, the terminal device detects the signal of the DCI scheduling on the first physical resource.

In a possible implementation, the first physical resource and the second physical resource are at least partially Overlap, the second physical resource is a reserved physical resource for transmitting a synchronization signal block.

In a possible implementation, if the terminal device detects the DCI, the synchronization signal block is not detected on the first physical resource, including: if the terminal device detects the DCI, The synchronization signal block is detected on a physical resource reserved for transmitting a synchronization signal block in the first physical resource.

In a possible implementation manner, the first physical resource includes a time domain resource, a frequency domain resource, or a time-frequency resource.

In a possible implementation manner, the time domain resource includes an orthogonal frequency division multiplexing OFDM symbol, a time slot, or a mini time slot.

In a possible implementation manner, the first physical resource is a time slot or a mini time slot for transmitting the PDCCH.

In a possible implementation, the signal of the DCI scheduling includes a physical uplink shared channel (PUSCH), a physical downlink shared channel (PDSCH), an aperiodic channel state indication reference signal (CSI-RS), or a periodic sounding reference signal. SRS.

A second aspect provides a method for signal transmission, including: a network device transmitting downlink control information DCI on a physical downlink control channel PDCCH, where the DCI is used for scheduling transmission of a signal on a first physical resource; The synchronization signal block is not transmitted on the first physical resource.

Therefore, the network device sends the DCI on the PDCCH, and does not send the synchronization signal on the first physical resource scheduled by the DCI, so that the terminal device does not detect the synchronization signal on the first physical resource when detecting the DCI on the PDCCH. The block reduces the detection complexity of the synchronization signal block by the terminal device.

In a possible implementation manner, the method further includes: sending, by the network device, the signal of the DCI scheduling on the first physical resource.

In a possible implementation, the first physical resource and the second physical resource at least partially overlap, and the second physical resource is a reserved physical resource for transmitting a synchronization signal block.

In a possible implementation manner, the network device does not send the synchronization signal block on the first physical resource, including: the network device is not reserved in the first physical resource for transmitting a synchronization signal block. On the physical resource, the synchronization signal block is transmitted.

In a possible implementation manner, the time domain resource includes an orthogonal frequency division multiplexing OFDM symbol Number, time slot or mini time slot.

In a third aspect, a terminal device is provided, which can perform the operations of the terminal device in the above first aspect or any optional implementation manner of the first aspect. In particular, the terminal device may comprise a modular unit for performing the operations of the terminal device in any of the possible implementations of the first aspect or the first aspect described above.

In a fourth aspect, a network device is provided, which can perform the operations of the network device in any of the foregoing optional implementations of the second aspect or the second aspect. In particular, the network device may comprise a modular unit for performing the operations of the network device in any of the possible implementations of the second aspect or the second aspect described above.

In a fifth aspect, a terminal device is provided, the terminal device comprising: a processor, a transceiver, and a memory. The processor, the transceiver, and the memory communicate with each other through an internal connection path. The memory is for storing instructions for executing instructions stored by the memory. When the processor executes the instruction stored by the memory, the executing causes the terminal device to perform the method in the first aspect or any possible implementation manner of the first aspect, or the execution causes the terminal device to implement the terminal provided by the third aspect device.

In a sixth aspect, a network device is provided, the network device comprising: a processor, a transceiver, and a memory. The processor, the transceiver, and the memory communicate with each other through an internal connection path. The memory is for storing instructions for executing instructions stored by the memory. When the processor executes the instruction stored by the memory, the executing causes the network device to perform the method in any of the possible implementations of the second aspect or the second aspect, or the execution causes the network device to implement the network provided by the fourth aspect device.

In a seventh aspect, a computer readable storage medium is provided, the computer readable storage medium storing a program causing the terminal device to perform the signal transmission of any of the above first aspects, and various implementations thereof Methods.

In an eighth aspect, a computer readable storage medium is provided, the computer readable storage medium storing a program causing a network device to perform the second aspect described above, and various implementations thereof Any of the methods of signal transmission.

In a ninth aspect, a system chip is provided, the system chip comprising an input interface, an output interface, a processor, and a memory, the processor is configured to execute an instruction stored by the memory, and when the instruction is executed, the processor can implement the foregoing The method of any of the first aspect or any of the possible implementations of the first aspect.

According to a tenth aspect, a system chip is provided, the system chip includes an input interface, an output interface, a processor, and a memory, the processor is configured to execute an instruction stored by the memory, and when the instruction is executed, the processor can implement the foregoing The method of any of the second aspect or any possible implementation of the second aspect.

In an eleventh aspect, a computer program product comprising instructions for causing a computer to execute the method of any of the first aspect or the first aspect of the first aspect, when the computer program product is run on a computer.

According to a twelfth aspect, there is provided a computer program product comprising instructions which, when executed on a computer, cause the computer to perform the method of any of the second aspect or the second aspect of the second aspect.

DRAWINGS

FIG. 1 is a schematic structural diagram of an application scenario of an embodiment of the present application.

FIG. 2 is a schematic flowchart of a method for signal transmission according to an embodiment of the present application.

FIG. 3 is a schematic flowchart of a method for signal transmission in an embodiment of the present application.

FIG. 4 is a schematic block diagram of a terminal device according to an embodiment of the present application.

FIG. 5 is a schematic block diagram of a network device according to an embodiment of the present application.

FIG. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present application.

FIG. 7 is a schematic structural diagram of a network device according to an embodiment of the present application.

FIG. 8 is a schematic structural diagram of a system chip according to an embodiment of the present application.

Detailed ways

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

It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as a Global System of Mobile Communication (GSM) system, a Code Division Multiple Access (CDMA) system, and a wideband code. Multiple access (Wideband) Code Division Multiple Access (WCDMA) system, Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunications System (Universal Mobile Telecommunication System, UMTS), and future 5G communication systems.

The present application describes various embodiments in connection with a terminal device. The terminal device may also refer to a user equipment (User Equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, and a user agent. Or user device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication. Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks, or future evolved land-based public land mobile network (PLMN) networks Terminal equipment, etc.

The present application describes various embodiments in connection with a network device. The network device may be a device for communicating with the terminal device, for example, may be a base station (Base Transceiver Station, BTS) in the GSM system or CDMA, or may be a base station (NodeB, NB) in the WCDMA system, or may be An evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or the network device may be a relay station, an access point, an in-vehicle device, a wearable device, and a network side device in a future 5G network or a future evolved PLMN network. Network side devices, etc.

FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application. The communication system in FIG. 1 may include a network device 10 and a terminal device 20. The network device 10 is configured to provide communication services for the terminal device 20 and access the core network. The terminal device 20 can access the network by searching for synchronization signals, broadcast signals, and the like transmitted by the network device 10, thereby performing communication with the network. The arrows shown in FIG. 1 may represent uplink/downlink transmissions by a cellular link between the terminal device 20 and the network device 10.

The network in the embodiment of the present application may refer to a Public Land Mobile Network (PLMN) or a Device to Device (D2D) network or a Machine to Machine/Man (M2M) network. Or other networks, FIG. 1 is only a simplified schematic diagram of an example, and other terminal devices may also be included in the network, which are not shown in FIG.

FIG. 2 is a schematic flowchart of a method for signal transmission according to an embodiment of the present application. The method shown in FIG. 2 can be performed by a terminal device, which can be, for example, the terminal device 20 shown in FIG. 1. As shown in FIG. 2, the method for transmitting signals includes:

In 210, the terminal device detects DCI on the PDCCH, wherein the DCI is used to schedule transmission of signals on the first physical resource.

Optionally, the first physical resource includes a time domain resource, a frequency domain resource, or a time-frequency resource.

Specifically, the first physical resource includes at least one time domain resource, or includes at least one frequency domain resource, or includes at least one time-frequency resource. A part of the physical resources in the first physical resource may be a reserved physical resource for transmitting a synchronization signal block.

Optionally, the time domain resource includes an Orthogonal Frequency Division Multiplexing (OFDM) symbol, a slot, or a mini-slot.

Optionally, the first physical resource is a time slot or a mini time slot in which the PDCCH is located.

Optionally, the first physical resource and the second physical resource at least partially overlap, and the second physical resource is a reserved physical resource for transmitting the synchronization signal block SS Block. The SS Block may include a synchronization signal (PSS, SSS) and a PBCH.

In other words, the first physical resource may be a reserved physical resource for transmitting the synchronization signal block SS Block, or a time domain between the first physical resource and the reserved physical resource for transmitting the synchronization signal block. / or overlap in the frequency domain.

The second physical resource may be, for example, a reserved time domain resource for transmitting a synchronization signal block, such as a number of OFDM symbols reserved for transmission of a synchronization signal block; or may be reserved for transmitting a synchronization signal block Frequency domain resources, such as several PRBs reserved for the transmission of synchronization signal blocks. Optionally, the second physical resource may include multiple physical resources that are periodically distributed.

The second physical resource may be, for example, pre-approved by the network device and the terminal device, and pre-stored in the terminal device.

In 220, if the terminal device detects the DCI, the synchronization signal block is not detected on the first physical resource.

Specifically, the terminal device detects the DCI on the PDCCH, and if the terminal device detects the DCI, does not detect the synchronization signal block on the first physical resource scheduled by the DCI. Since the terminal device may not detect the synchronization signal block on the first physical resource when detecting the DCI, the detection complexity of the synchronization signal block by the terminal device may be reduced.

Further, optionally, in 220, if the terminal device detects the DCI, detecting the synchronization signal block on the first physical resource, if the terminal device detects the DCI, not in the first physical resource. Detecting the synchronization signal on a reserved physical resource for transmitting a synchronization signal block Piece.

Specifically, if the terminal device detects the DCI, the terminal device does not detect the synchronization signal block in the physical resource for transmitting the synchronization signal block reserved in the first physical resource, but may still be in the first physical resource. The sync signal block is detected on other physical resources. That is, if the terminal device detects the DCI, the terminal device may not detect the synchronization signal block only on the part of the first physical resource that overlaps with the second physical resource.

For example, it is assumed that the first physical resource includes the time slot in which the PDCCH is located. When the terminal device does not detect the DCI on the PDCCH, the detection of the synchronization signal block may not be performed in the time slot in which the PDCCH is located.

For another example, the time slot in which the PDCCH is located includes N OFDM symbols, where the first physical resource occupies only M OFDM symbols in the N OFDM symbols, and when the terminal device detects the DCI on the PDCCH, The detection of the sync signal block is not performed in the M symbols, but the terminal device can perform the detection of the sync signal block on the symbols other than the M symbols in the slot.

Optionally, the method further includes 230.

In 230, if the terminal device does not detect the DCI, the synchronization signal block is detected on the first physical resource.

Specifically, if the terminal device does not successfully detect the DCI on the PDCCH, the terminal device may detect the synchronization signal block on a physical resource reserved for transmitting the synchronization signal block in the first physical resource. Since the terminal device detects the synchronization signal block on the first physical resource when the DCI is not successfully detected, and does not need to perform the synchronization signal block on each reserved physical resource for transmitting the synchronization signal block. The detection can thus reduce the detection complexity of the synchronization signal block by the terminal device. And the part of the reserved physical resources for transmitting the synchronization signal block that is not used can also be used to transmit other data or reference signals, thereby improving resource utilization.

Optionally, the method further includes: when detecting the DCI, the terminal device detects the signal scheduled by the DCI on the first physical resource.

Optionally, the signal transmitted on the first physical resource may include a Physical Uplink Shared Channel (PUSCH), a Physical Downlink Shared Channel (PDSCH), and an aperiodic channel state. Indicates a Channel State Indication Reference Signal (CSI-RS) or a periodic Sounding Reference Signals (SRS).

Therefore, in the embodiment of the present application, the terminal device may not detect the synchronization signal block on the first physical resource scheduled by the DCI when the DCI is successfully detected, thereby reducing the detection complexity of the synchronization signal block by the terminal device.

FIG. 3 is a schematic flowchart of a method for signal transmission in an embodiment of the present application. The method illustrated in FIG. 3 may be performed by a network device, such as network device 10 shown in FIG. As shown in FIG. 3, the method for signal transmission includes:

In 310, the network device sends downlink control information DCI on the physical downlink control channel PDCCH, where the DCI is used to schedule transmission of signals on the first physical resource;

At 320, the network device does not transmit a synchronization signal block on the first physical resource.

Specifically, the network device sends the DCI on the PDCCH, and does not send the synchronization signal block on the first physical resource scheduled by the DCI, so that the terminal device does not detect the first physical resource when detecting the DCI on the PDCCH. The synchronization signal block reduces the detection complexity of the synchronization signal block by the terminal device.

Optionally, the method further includes: sending, by the network device, the signal of the DCI scheduling on the first physical resource.

Optionally, the first physical resource and the second physical resource at least partially overlap, and the second physical resource is a reserved physical resource for transmitting a synchronization signal block.

Optionally, the network device does not send the synchronization signal block on the first physical resource, including: the network device is not on the physical resource for transmitting the synchronization signal block reserved in the first physical resource, and is sent The sync signal block.

For example, if the first physical resource includes the time slot in which the PDCCH is located, the network device may not send the synchronization signal block in the time slot in which the PDCCH is located.

For another example, if the time slot in which the PDCCH is located includes N OFDM symbols, where the first physical resource occupies only M OFDM symbols in the N OFDM symbols, the network device may not send the synchronization signal block in the M symbols. However, on other symbols than the M symbols in the time slot, the network device can transmit a synchronization signal block.

Optionally, the time domain resource comprises an orthogonal frequency division multiplexing OFDM symbol, a time slot or a mini time slot.

Optionally, the first physical resource is a time slot or a mini time slot for transmitting the PDCCH.

Optionally, the signal of the DCI scheduling includes a physical uplink shared channel PUSCH, and The downlink shared channel PDSCH, the aperiodic channel state indication reference signal CSI-RS, or the periodic sounding reference signal SRS.

It should be understood that the network device determines the specific details of the process of not transmitting the synchronization signal block on the physical resources. For reference, the related description of the terminal device in FIG. 2 is omitted, and details are not described herein for brevity.

It should also be understood that, in various embodiments of the present application, the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be implemented in the present application. The implementation of the examples constitutes any limitation.

FIG. 4 is a schematic block diagram of a terminal device 400 according to an embodiment of the present application. As shown in FIG. 4, the terminal device 400 includes a detecting unit 410, and the detecting unit 410 is configured to:

The downlink control information DCI is detected on the physical downlink control channel PDCCH, where the DCI is used to schedule transmission of a signal on the first physical resource; if the DCI is detected, the synchronization signal block is not detected on the first physical resource.

Optionally, the detecting unit 410 is further configured to: when the DCI is not detected, detect the synchronization signal block on the first physical resource.

Optionally, the detecting unit 410 is further configured to: when the DCI is detected, detect the signal of the DCI scheduling on the first physical resource.

Optionally, the detecting unit 410 is specifically configured to: if the DCI is detected, not detecting the synchronization signal block on a physical resource for transmitting a synchronization signal block reserved in the first physical resource.

Optionally, the signal of the DCI scheduling includes a physical uplink shared channel (PUSCH), a physical downlink shared channel (PDSCH), an aperiodic channel state indication reference signal (CSI-RS), or a periodic sounding reference signal SRS.

FIG. 5 is a schematic block diagram of a network device 500 in accordance with an embodiment of the present application. As shown in FIG. 5, the network device 500 includes a transmitting unit 510 and a determining unit 520. among them:

The sending unit 510 is configured to send downlink control information DCI on the physical downlink control channel PDCCH, where the DCI is used to schedule transmission of a signal on the first physical resource;

The determining unit 520 is configured to determine that the synchronization signal block is not sent on the first physical resource.

Optionally, the sending unit 510 is further configured to: send the signal of the DCI scheduling on the first physical resource.

Optionally, the determining unit 520 is specifically configured to: determine to send the synchronization signal block on a physical resource that is not reserved in the first physical resource for transmitting a synchronization signal block.

FIG. 6 is a schematic structural diagram of a terminal device 600 according to an embodiment of the present application. As shown in FIG. 6, the terminal device includes a processor 610, a transceiver 620, and a memory 630, wherein the processor 610, the transceiver 620, and the memory 630 communicate with each other through an internal connection path. The memory 630 is configured to store instructions for executing the instructions stored by the memory 630 to control the transceiver 620 to receive signals or transmit signals. Wherein, the transceiver 620 is configured to:

Therefore, the terminal device may not be in the first physical resource scheduled by the DCI when detecting the DCI. The synchronization signal block is detected on top, thereby reducing the detection complexity of the synchronization signal block by the terminal device.

Optionally, the transceiver 620 is further configured to: if the DCI is not detected, detect the synchronization signal block on the first physical resource.

Optionally, the transceiver 620 is further configured to: when the DCI is detected, detect the signal of the DCI scheduling on the first physical resource.

Optionally, the transceiver 620 is specifically configured to: if the DCI is detected, not detecting the synchronization signal block on a physical resource for transmitting a synchronization signal block reserved in the first physical resource.

It should be understood that, in the embodiment of the present application, the processor 610 may be a central processing unit (CPU), and the processor 610 may also be another general-purpose processor, a digital signal processor (Digital Signal Processor, DSP). ), Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 630 can include read only memory and random access memory and provides instructions and data to the processor 610. A portion of the memory 630 may also include a non-volatile random access memory.

In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 610 or an instruction in a form of software. The steps of the positioning method disclosed in the embodiment of the present application may be directly implemented by the hardware processor, or may be performed by a combination of hardware and software modules in the processor 610. The software module can be located in a random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, etc. In the medium. The storage medium is located in the memory 630, and the processor 610 reads the information in the memory 630 and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.

The terminal device 600 according to the embodiment of the present application may correspond to the terminal device for performing the method 200 in the foregoing method 200, and the terminal device 400 according to the embodiment of the present application, and each unit or module in the terminal device 600 is used for The operations or processes performed by the terminal device in the above method 200 are performed. Here, in order to avoid redundancy, detailed description thereof will be omitted.

FIG. 7 is a schematic structural diagram of a network device 700 according to an embodiment of the present application. As shown in FIG. 7, the network device includes a processor 710, a transceiver 720, and a memory 730, wherein the processor 710, the transceiver 720, and the memory 730 communicate with each other through an internal connection path. The memory 730 is configured to store instructions for executing the instructions stored by the memory 730 to control the transceiver 720 to receive signals or transmit signals. Wherein, the transceiver 720 is configured to:

Transmitting downlink control information DCI on the physical downlink control channel PDCCH, where the DCI is used to schedule transmission of a signal on the first physical resource;

The processor is configured to: determine not to transmit a synchronization signal block on the first physical resource.

Optionally, the transceiver 720 is further configured to: send the signal of the DCI scheduling on the first physical resource.

Optionally, the processor 710 is specifically configured to: determine to send the synchronization signal block on a physical resource that is not reserved in the first physical resource for transmitting a synchronization signal block.

It should be understood that, in the embodiment of the present application, the processor 710 may be a central processing unit (CPU), and the processor 710 may also be other general-purpose processors, digital signal processors (DSPs), and application specific integrated circuits. (ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and more. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 730 can include read only memory and random access memory and provides instructions and data to the processor 710. A portion of the memory 730 may also include a non-volatile random access memory. In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 710 or an instruction in a form of software. The steps of the positioning method disclosed in the embodiment of the present application may be directly implemented by the hardware processor, or may be performed by a combination of hardware and software modules in the processor 710. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in memory 730, and processor 710 reads the information in memory 730 and, in conjunction with its hardware, performs the steps of the above method. To avoid repetition, it will not be described in detail here.

The network device 700 according to the embodiment of the present application may correspond to the network device for performing the method 300 in the foregoing method 300, and the network device 500 according to the embodiment of the present application, and each unit or module in the network device 700 is used for The operations or processes performed by the network device in the above method 300 are performed. Here, in order to avoid redundancy, detailed description thereof will be omitted.

FIG. 8 is a schematic structural diagram of a system chip according to an embodiment of the present application. The system chip 800 of FIG. 8 includes an input interface 801, an output interface 802, at least one processor 803, and a memory 804. The input interface 801, the output interface 802, the processor 803, and the memory 804 are interconnected by an internal connection path. . The processor 803 is configured to execute code in the memory 804.

Alternatively, when the code is executed, the processor 803 can implement the method 200 performed by the terminal device in the method embodiment. For the sake of brevity, it will not be repeated here.

Alternatively, when the code is executed, the processor 803 can implement the method 300 performed by the network device in a method embodiment. For the sake of brevity, it will not be repeated here.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. Professionals can use different parties for each specific application The described functionality is implemented, but such implementation should not be considered to be beyond the scope of the present application.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one monitoring unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

This functionality, if implemented as a software functional unit and sold or used as a standalone product, can be stored on a computer readable storage medium. Based on such understanding, the technical solution of the present application, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

The above is only a specific embodiment of the present application, but the scope of protection of the embodiments of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the embodiments of the present application. , should be covered in the scope of protection of this application for personal gain. Therefore, the scope of protection of the embodiments of the present application should be determined by the scope of protection of the claims.

Claims

A method of signal transmission, characterized in that the method comprises:

The terminal device detects downlink control information DCI on the physical downlink control channel PDCCH, where the DCI is used to schedule transmission of signals on the first physical resource;

If the terminal device detects the DCI, the synchronization signal block is not detected on the first physical resource.
The method of claim 1 further comprising:

If the terminal device does not detect the DCI, detecting the synchronization signal block on the first physical resource.
The method according to claim 1 or 2, wherein the method further comprises:

Upon detecting the DCI, the terminal device detects the signal of the DCI scheduling on the first physical resource.
The method according to any one of claims 1 to 3, wherein the first physical resource and the second physical resource at least partially overlap, and the second physical resource is reserved for transmitting a synchronization signal block. Physical resources.
The method according to any one of claims 1 to 4, wherein if the terminal device detects the DCI, detecting a synchronization signal block on the first physical resource includes:

And if the terminal device detects the DCI, detecting the synchronization signal block on a physical resource for transmitting a synchronization signal block reserved in the first physical resource.
The method according to any one of claims 1 to 5, wherein the first physical resource comprises a time domain resource, a frequency domain resource or a time-frequency resource.
The method of claim 6 wherein the time domain resources comprise orthogonal frequency division multiplexed OFDM symbols, time slots or mini time slots.
The method according to any one of claims 1 to 7, wherein the first physical resource is a time slot or a mini time slot for transmitting the PDCCH.
The method according to any one of claims 1 to 8, wherein the signal of the DCI scheduling comprises a physical uplink shared channel PUSCH, a physical downlink shared channel PDSCH, and an aperiodic channel state indication reference signal CSI. -RS, or periodic sounding reference signal SRS.
A method of signal transmission, characterized in that the method comprises:

The network device sends downlink control information DCI on the physical downlink control channel PDCCH, where