WO2021008517A1 - 下行控制信道的检测方法、传输方法及设备 - Google Patents

下行控制信道的检测方法、传输方法及设备 Download PDF

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Publication number
WO2021008517A1
WO2021008517A1 PCT/CN2020/101846 CN2020101846W WO2021008517A1 WO 2021008517 A1 WO2021008517 A1 WO 2021008517A1 CN 2020101846 W CN2020101846 W CN 2020101846W WO 2021008517 A1 WO2021008517 A1 WO 2021008517A1
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Prior art keywords
downlink control
control channel
resource pattern
ssb
physical downlink
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PCT/CN2020/101846
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English (en)
French (fr)
Inventor
王磊
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大唐移动通信设备有限公司
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Application filed by 大唐移动通信设备有限公司 filed Critical 大唐移动通信设备有限公司
Priority to US17/619,058 priority Critical patent/US20220360418A1/en
Priority to EP20841325.2A priority patent/EP4002740A4/en
Publication of WO2021008517A1 publication Critical patent/WO2021008517A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements

Definitions

  • the present disclosure relates to the field of communications, in particular to a detection method, transmission method and equipment for a downlink control channel.
  • the synchronization signal block SSB is periodically transmitted according to a fixed pattern.
  • Each SSB occupies 4 consecutive orthogonal frequency division multiplexing OFDM symbols in the time domain, and in the time slot for transmitting the SSB, the first SSB occupies the 4th to the 7th OFDM symbols.
  • the downlink control channel and SSB are multiplexed by time division multiplexing TDM, and they are located on the first N symbols of each slot.
  • the first symbol of the slot is used to transmit Common Reference Signal (CRS) and cannot be used to transmit other channels.
  • CRS Common Reference Signal
  • DFT-s-OFDM waveforms are used.
  • different channels cannot be transmitted on one time domain symbol on the transmission bandwidth. If the control resource set CORESET and the symbol for transmitting the SSB collide, all the physical downlink control channels PDCCH in the CORESET will not be transmitted normally, and the scheduling will fail.
  • the purpose of the present disclosure is to provide a detection method, transmission method, and equipment for a downlink control channel, so as to solve the problem that the CORESET and SSB symbols collide, causing the PDCCH in the CORESET to fail to be transmitted normally and scheduling failure.
  • the embodiments of the present disclosure provide a method for detecting a downlink control channel, which is applied to user equipment, and includes:
  • the corresponding physical downlink control channel resource pattern is used to detect the downlink control channel in the current time slot.
  • the detecting the downlink control channel in the current time slot using the corresponding physical downlink control channel resource pattern according to whether there is a synchronization signal block SSB in the current time slot includes:
  • the first physical downlink control channel resource pattern is used to detect the downlink control channel
  • the first physical downlink control channel resource pattern occupies consecutive N1 symbols in the time domain and B1 resource blocks in the frequency domain, and the N1 symbols do not overlap with symbols for transmitting SSB, where N1 is greater than Or a positive integer equal to 1, and B1 is a positive integer greater than or equal to 1.
  • the first physical downlink control channel resource pattern is predefined by a protocol or determined according to the resource location of the SSB.
  • the detecting the downlink control channel in the current time slot using the corresponding physical downlink control channel resource pattern according to whether there is a synchronization signal block SSB in the current time slot includes:
  • the second physical downlink control channel resource pattern is used to detect the downlink control channel
  • the second physical downlink control channel resource pattern occupies consecutive N2 symbols in the time domain and B2 resource blocks in the frequency domain. Both N2 and B2 are positive integers greater than or equal to 1.
  • the second physical downlink control channel resource pattern is configured by the network device through high-layer signaling.
  • the embodiments of the present disclosure provide a downlink control channel transmission method, which is applied to network equipment, and includes:
  • the corresponding physical downlink control channel resource pattern is used to transmit the downlink control channel in the current time slot.
  • the using the corresponding physical downlink control channel resource pattern to transmit the downlink control channel in the current time slot according to whether there is a synchronization signal block SSB in the current time slot includes:
  • the first physical downlink control channel resource pattern is used to transmit the downlink control channel;
  • the first physical downlink control channel resource pattern occupies consecutive N1 symbols in the time domain and B1 resource blocks in the frequency domain, and the N1 symbols do not overlap with symbols for transmitting SSB, where N1 is greater than Or a positive integer equal to 1, and B1 is a positive integer greater than or equal to 1.
  • the first physical downlink control channel resource pattern is predefined by a protocol or determined according to the resource location of the SSB.
  • the using the corresponding physical downlink control channel resource pattern to transmit the downlink control channel in the current time slot according to whether there is a synchronization signal block SSB in the current time slot includes:
  • the second physical downlink control channel resource pattern is used to transmit the downlink control channel;
  • the second physical downlink control channel resource pattern occupies consecutive N2 symbols in the time domain and B2 resource blocks in the frequency domain. Both N2 and B2 are positive integers greater than or equal to 1.
  • the second physical downlink control channel resource pattern is configured by the network device through high-layer signaling.
  • the embodiments of the present disclosure provide a user equipment, including a transceiver, a memory, a processor, and a program stored in the memory and running on the processor; the processor executes the The following steps are implemented during the program:
  • the corresponding physical downlink control channel resource pattern is used to detect the downlink control channel in the current time slot.
  • the processor is further configured to:
  • the first physical downlink control channel resource pattern is used to detect the downlink control channel
  • the first physical downlink control channel resource pattern occupies consecutive N1 symbols in the time domain and B1 resource blocks in the frequency domain, and the N1 symbols do not overlap with symbols for transmitting SSB, where N1 is greater than Or a positive integer equal to 1, and B1 is a positive integer greater than or equal to 1.
  • the first physical downlink control channel resource pattern is predefined by a protocol or determined according to the resource location of the SSB.
  • the processor is further configured to:
  • the second physical downlink control channel resource pattern is used to detect the downlink control channel
  • the second physical downlink control channel resource pattern occupies consecutive N2 symbols in the time domain and B2 resource blocks in the frequency domain. Both N2 and B2 are positive integers greater than or equal to 1.
  • the second physical downlink control channel resource pattern is configured by the network device through high-layer signaling.
  • the embodiments of the present disclosure provide a network device, including a transceiver, a memory, a processor, and a program stored on the memory and running on the processor; the transceiver executes the The following steps are implemented during the program:
  • the corresponding physical downlink control channel resource pattern is used to transmit the downlink control channel in the current time slot.
  • the transceiver is also used for:
  • the first physical downlink control channel resource pattern is used to transmit the downlink control channel;
  • the first physical downlink control channel resource pattern occupies consecutive N1 symbols in the time domain and B1 resource blocks in the frequency domain, and the N1 symbols do not overlap with symbols for transmitting SSB, where N1 is greater than Or a positive integer equal to 1, and B1 is a positive integer greater than or equal to 1.
  • the first physical downlink control channel resource pattern is predefined by a protocol or determined according to the resource location of the SSB.
  • the transceiver is also used for:
  • the second physical downlink control channel resource pattern is used to transmit the downlink control channel;
  • the second physical downlink control channel resource pattern occupies consecutive N2 symbols in the time domain and B2 resource blocks in the frequency domain. Both N2 and B2 are positive integers greater than or equal to 1.
  • the second physical downlink control channel resource pattern is configured by the network device through high-layer signaling.
  • an apparatus for detecting a downlink control channel which is applied to user equipment, and includes:
  • the processing module is configured to use the corresponding physical downlink control channel resource pattern to detect the downlink control channel in the current time slot according to whether there is a synchronization signal block SSB in the current time slot.
  • a downlink control channel transmission device which is applied to network equipment, and includes:
  • the transmission module is configured to use the corresponding physical downlink control channel resource pattern to transmit the downlink control channel in the current time slot according to whether there is a synchronization signal block SSB in the current time slot.
  • the embodiment of the present disclosure provides a readable storage medium on which a program is stored, and when the program is executed by a processor, the steps in the downlink control channel transmission method applied to the user equipment as described above are implemented, or The steps in the downlink control channel transmission method applied to the network equipment as above are implemented.
  • the methods of some embodiments of the present disclosure can detect the downlink control channel in the current time slot using an applicable PDCCH resource pattern according to whether there is an SSB in the current time slot, which can avoid the decrease of the capacity of the downlink control channel and the existence of SSB.
  • the downlink control channel cannot be sent in the time slot.
  • FIG. 1 is a schematic flowchart of a method for detecting a downlink control channel according to some embodiments of the disclosure
  • FIG. 2 is one of the application schematic diagrams of the method of some embodiments of the disclosure.
  • FIG. 3 is the second schematic diagram of application of the method of some embodiments of the present disclosure.
  • FIG. 4 is a schematic flowchart of a method for transmitting a downlink control channel according to some embodiments of the disclosure
  • FIG. 5 is a schematic structural diagram of user equipment according to some embodiments of the present disclosure.
  • Fig. 6 is a schematic structural diagram of a network device according to some embodiments of the present disclosure.
  • the downlink control channel detection method of some embodiments of the present disclosure, applied to user equipment includes:
  • Step 101 According to whether there is a synchronization signal block SSB in the current time slot, use the corresponding physical downlink control channel resource pattern to detect the downlink control channel in the current time slot.
  • a variety of physical downlink control channel PDCCH resource pattern patterns are set for whether there is an SSB in the time slot, where the PDCCH resource pattern is the size of the physical resource used for downlink control channel transmission.
  • the user equipment can use the applicable PDCCH resource pattern to detect the downlink control channel in the current time slot according to whether there is an SSB in the current time slot, which can avoid the decrease in the capacity of the downlink control channel and avoid the failure of the time slot with SSB. Send the downlink control channel.
  • the corresponding network equipment will also use the corresponding PDCCH resource pattern to transmit the downlink control channel in the current time slot according to whether there is an SSB in the current time slot, so as to complete the UE detection and reception of the downlink control information.
  • step 101 includes:
  • the first physical downlink control channel resource pattern is used to detect the downlink control channel
  • the first physical downlink control channel resource pattern occupies consecutive N1 symbols in the time domain and B1 resource blocks in the frequency domain, and the N1 symbols do not overlap with symbols for transmitting SSB, where N1 is greater than Or a positive integer equal to 1, and B1 is a positive integer greater than or equal to 1.
  • the first PDCCH resource pattern is a PDCCH resource pattern applicable to downlink control channel detection in a time slot for transmitting SSB, wherein the first PDCCH resource pattern occupies consecutive N1 symbols in the time domain and B1 resources in the frequency domain Block RB.
  • the user equipment can use the first PDCCH resource pattern to detect and receive the downlink control channel in the time slot where the SSB exists.
  • the network device uses the first PDCCH resource pattern to transmit the downlink control channel in the time slot for transmitting the SSB.
  • the first physical downlink control channel resource pattern is predefined by the protocol or determined according to the resource location of the SSB.
  • the first PDCCH resource pattern predefined by the protocol or the first PDCCH resource pattern determined according to the resource position of the SSB, it occupies consecutive N1 symbols in the time domain and does not overlap with the SSB in the time domain.
  • step 101 further includes:
  • the second physical downlink control channel resource pattern is used to detect the downlink control channel
  • the second physical downlink control channel resource pattern occupies consecutive N2 symbols in the time domain and B2 resource blocks in the frequency domain. Both N2 and B2 are positive integers greater than or equal to 1.
  • the second PDCCH resource pattern is a PDCCH resource pattern applicable to downlink control channel detection in time slots without SSB transmission, wherein the second PDCCH resource pattern occupies consecutive N2 symbols in the time domain and B2 symbols in the frequency domain Resource block RB.
  • the user equipment can use the second PDCCH resource pattern to detect and receive the downlink control channel in the time slot where there is no SSB.
  • the network device uses the second PDCCH resource pattern to transmit the downlink control channel in the time slot without SSB transmission.
  • the second physical downlink control channel resource pattern is configured by the network device through high-layer signaling.
  • Scenario 1 A network device such as a base station needs to send two SSBs (SSB#1 and SSB#2) within a period of 20ms, and the SSB is sent within 5ms.
  • SSB#1 occupies the symbol ⁇ #2#3#4#5 ⁇
  • SSB#2 occupies the symbol ⁇ #8#9#10#11 ⁇ .
  • the downlink control channel transmission area configured by the base station for the user equipment is: symbols in the slot ⁇ #1#2#3 ⁇ , occupying the entire transmission bandwidth B3 in the frequency domain.
  • the symbol #0 is used to transmit CRS.
  • the downlink control channel transmission area is called PDCCH resource pattern1.
  • define the PDCCH resource pattern2 specifically: occupy the symbol ⁇ #1 ⁇ in the slot in the time domain, and occupy the entire transmission bandwidth B3 in the frequency domain.
  • the base station transmits the downlink control channel according to PDCCH resource pattern1, and the user equipment detects and receives the downlink control channel according to PDCCH resource pattern1; In 0), the base station sends the downlink control channel according to the PDCCH resource pattern2, and the user equipment detects and receives the downlink control channel according to the PDCCH pattern2. That is, the base station and the user equipment adaptively adjust the transmission and reception area of the downlink control channel according to the transmission position of the SSB.
  • the base station does not need to perform downlink control channel transmission according to a single PDCCH resource pattern, thereby avoiding a decrease in the capacity of the control channel on the slot for transmitting the SSB, and ensuring that the user equipment detects and receives the PDCCH in the SSB time slot.
  • Scenario 2 A network device such as a base station needs to send two SSBs (SSB#1 and SSB#2) within a period of 20ms, and the SSB is sent within 5ms.
  • SSB#1 occupies the symbol ⁇ #2 #3 #4 #5 ⁇
  • SSB#2 occupies the symbol ⁇ #8 #9 #10 #11 ⁇ .
  • the downlink control channel transmission area configured by the base station for the user equipment is: symbols in the slot ⁇ #1 #2 #3 ⁇ , occupying bandwidth B4 in the frequency domain.
  • the bandwidth B4 can be implicitly determined by the frequency domain size of CORESET#0, for example, the same as the number of RBs occupied by CORESET#0 in the frequency domain.
  • the symbol #0 is used to transmit CRS.
  • the downlink control channel transmission area is called PDCCH resource pattern3.
  • define the PDCCH resource pattern4 specifically: occupy the symbol ⁇ #1 ⁇ in the slot in the time domain, and occupy the entire transmission bandwidth B5 in the frequency domain, where B5>B4.
  • the base station sends the downlink control channel according to PDCCH resource pattern4, and the user equipment detects and receives the downlink control channel according to PDCCH resource pattern4;
  • the base station sends the downlink control channel according to the PDCCH resource pattern3, and the user equipment detects and receives the downlink control channel according to the PDCCH resource pattern3. That is, the base station and the user equipment adaptively adjust the transmission and reception area of the downlink control channel according to the transmission position of the SSB.
  • the base station does not need to perform downlink control channel transmission according to a single PDCCH resource pattern, thereby avoiding a decrease in the capacity of the downlink control channel, and ensuring that the user equipment detects and receives the PDCCH in the SSB time slot.
  • the downlink control channel detection method of some embodiments of the present disclosure can detect the downlink control channel in the current time slot by using the applicable PDCCH resource pattern according to whether there is an SSB in the current time slot, which can avoid the capacity of the downlink control channel. Decrease, to prevent the time slot with SSB from being unable to transmit the downlink control channel.
  • an embodiment of the present disclosure provides a method for transmitting a downlink control channel, which is applied to a network device, and includes:
  • Step 401 According to whether there is a synchronization signal block SSB in the current time slot, the corresponding physical downlink control channel resource pattern is used to transmit the downlink control channel in the current time slot.
  • the network device can use the applicable PDCCH resource pattern to transmit the downlink control channel in the current time slot according to whether there is an SSB in the current time slot, which can avoid the decrease of the downlink control channel capacity and prevent the time slot with SSB from being unable to transmit Downlink control channel.
  • step 401 includes:
  • the first physical downlink control channel resource pattern is used to transmit the downlink control channel;
  • the first physical downlink control channel resource pattern occupies consecutive N1 symbols in the time domain and B1 resource blocks in the frequency domain, and the N1 symbols do not overlap with symbols for transmitting SSB, where N1 is greater than Or a positive integer equal to 1, and B1 is a positive integer greater than or equal to 1.
  • the first PDCCH resource pattern is a PDCCH resource pattern applicable to downlink control channel detection in a time slot for transmitting SSB, wherein the first PDCCH resource pattern occupies consecutive N1 symbols in the time domain and B1 resources in the frequency domain Block RB.
  • the first physical downlink control channel resource pattern is predefined by a protocol or determined according to the resource location of the SSB.
  • the first PDCCH resource pattern predefined by the protocol or the first PDCCH resource pattern determined according to the resource position of the SSB, it occupies consecutive N1 symbols in the time domain and does not overlap with the SSB in the time domain.
  • step 401 includes:
  • the second physical downlink control channel resource pattern is used to transmit the downlink control channel;
  • the second physical downlink control channel resource pattern occupies consecutive N2 symbols in the time domain and B2 resource blocks in the frequency domain. Both N2 and B2 are positive integers greater than or equal to 1.
  • the second PDCCH resource pattern is a PDCCH resource pattern applicable to downlink control channel detection in time slots without SSB transmission, wherein the second PDCCH resource pattern occupies consecutive N2 symbols in the time domain and B2 symbols in the frequency domain Resource block RB. In this way, in a time slot where there is no SSB, the network device can use the second PDCCH resource pattern to transmit the downlink control channel in the current time slot.
  • the second physical downlink control channel resource pattern is configured by the network device through high-layer signaling.
  • this method is applied to network equipment, and cooperates with the detection method of the downlink control channel applied to the user equipment to realize the transmission and reception of the downlink control channel.
  • the implementation manners of the foregoing method embodiments applied to user equipment are applicable to the device, and the same technical effects can also be achieved.
  • an embodiment of the present disclosure also provides a user equipment, including a transceiver 520, a memory 540, a processor 510, and a program stored on the memory 540 and running on the processor 510 ;
  • the processor 510 implements the following steps when executing the program:
  • the corresponding physical downlink control channel resource pattern is used to detect the downlink control channel in the current time slot.
  • processor 510 is further configured to:
  • the first physical downlink control channel resource pattern is used to detect the downlink control channel
  • the first physical downlink control channel resource pattern occupies consecutive N1 symbols in the time domain and B1 resource blocks in the frequency domain, and the N1 symbols do not overlap with symbols for transmitting SSB, where N1 is greater than Or a positive integer equal to 1, and B1 is a positive integer greater than or equal to 1.
  • the first physical downlink control channel resource pattern is predefined by a protocol or determined according to the resource location of the SSB.
  • processor 510 is further configured to:
  • the second physical downlink control channel resource pattern is used to detect the downlink control channel
  • the second physical downlink control channel resource pattern occupies consecutive N2 symbols in the time domain and B2 resource blocks in the frequency domain. Both N2 and B2 are positive integers greater than or equal to 1.
  • the second physical downlink control channel resource pattern is configured by the network device through high-layer signaling.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 510 and various circuits of the memory represented by the memory 540 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, no further descriptions are provided herein.
  • the bus interface provides the interface.
  • the transceiver 520 may be one element or multiple elements, such as multiple receivers and transmitters, and provide a unit for communicating with various other devices on the transmission medium. For example, the transceiver 520 receives external data from other devices. The transceiver 520 is used to send the data processed by the processor 510 to other devices.
  • a user interface 530 may also be provided, such as a keypad, display, speaker, microphone, joystick.
  • the processor 510 is responsible for managing the bus 500 and general processing.
  • the memory 540 may be used to store data used by the processor 510 when performing operations.
  • the processor 510 may be a CPU, ASIC, FPGA, or CPLD.
  • an embodiment of the present disclosure provides a network device, including a transceiver 620, a memory 630, a processor 610, and a program stored on the memory 630 and running on the processor 510;
  • the processor 610 implements the following steps when executing the program:
  • the corresponding physical downlink control channel resource pattern is used to transmit the downlink control channel in the current time slot.
  • the transceiver 620 is also used for:
  • the first physical downlink control channel resource pattern is used to transmit the downlink control channel;
  • the first physical downlink control channel resource pattern occupies consecutive N1 symbols in the time domain and B1 resource blocks in the frequency domain, and the N1 symbols do not overlap with symbols for transmitting SSB, where N1 is greater than Or a positive integer equal to 1, and B1 is a positive integer greater than or equal to 1.
  • the first physical downlink control channel resource pattern is predefined by a protocol or determined according to the resource location of the SSB.
  • the transceiver 620 is also used for:
  • the second physical downlink control channel resource pattern is used to transmit the downlink control channel;
  • the second physical downlink control channel resource pattern occupies consecutive N2 symbols in the time domain and B2 resource blocks in the frequency domain. Both N2 and B2 are positive integers greater than or equal to 1.
  • the second physical downlink control channel resource pattern is configured by the network device through high-layer signaling.
  • the transceiver 620 is used to receive and send data under the control of the processor 610.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 610 and various circuits of the memory represented by the memory 630 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, no further descriptions are provided herein.
  • the bus interface provides the interface.
  • the transceiver 620 may be a plurality of elements, that is, include a transmitter and a receiver, and provide a unit for communicating with various other devices on the transmission medium.
  • the processor 610 is responsible for managing the bus architecture and general processing, and the memory 630 can store data used by the processor 610 when performing operations.
  • the processor 610 is responsible for managing the bus architecture and general processing, and the memory 630 can store data used by the processor 610 when performing operations.
  • the embodiment of the present disclosure provides a device for detecting a downlink control channel, which is applied to user equipment, and includes:
  • the processing module is configured to use the corresponding physical downlink control channel resource pattern to detect the downlink control channel in the current time slot according to whether there is a synchronization signal block SSB in the current time slot.
  • the processing module includes:
  • the first processing sub-module is used to detect the downlink control channel using the first physical downlink control channel resource pattern in the time slot for transmitting the SSB;
  • the first physical downlink control channel resource pattern occupies consecutive N1 symbols in the time domain and B1 resource blocks in the frequency domain, and the N1 symbols do not overlap with symbols for transmitting SSB, where N1 is greater than Or a positive integer equal to 1, and B1 is a positive integer greater than or equal to 1.
  • the first physical downlink control channel resource pattern is predefined by a protocol or determined according to the resource location of the SSB.
  • the processing module includes:
  • the second processing submodule is used to detect the downlink control channel using the second physical downlink control channel resource pattern in the time slot without SSB transmission;
  • the second physical downlink control channel resource pattern occupies consecutive N2 symbols in the time domain and B2 resource blocks in the frequency domain. Both N2 and B2 are positive integers greater than or equal to 1.
  • the second physical downlink control channel resource pattern is configured by the network device through high-layer signaling.
  • the device can detect the downlink control channel in the current time slot by using the applicable PDCCH resource pattern according to whether there is an SSB in the current time slot, which can avoid the decrease of downlink control channel capacity and prevent the time slot with SSB from being unable to transmit the downlink control channel.
  • the device applies the above-mentioned method applied to user equipment, and the implementation manner of the embodiment of the above-mentioned method applied to user equipment is applicable to the device, and the same technical effect can be achieved.
  • the embodiment of the present disclosure also provides a downlink control channel transmission device, which is applied to network equipment, and includes:
  • the transmission module is configured to use the corresponding physical downlink control channel resource pattern to transmit the downlink control channel in the current time slot according to whether there is a synchronization signal block SSB in the current time slot.
  • the transmission module includes:
  • the first transmission submodule is used to transmit the downlink control channel using the first physical downlink control channel resource pattern in the time slot for transmitting the SSB;
  • the first physical downlink control channel resource pattern occupies consecutive N1 symbols in the time domain and B1 resource blocks in the frequency domain, and the N1 symbols do not overlap with symbols for transmitting SSB, where N1 is greater than Or a positive integer equal to 1, and B1 is a positive integer greater than or equal to 1.
  • the first physical downlink control channel resource pattern is predefined by a protocol or determined according to the resource location of the SSB.
  • the transmission module includes:
  • the second transmission submodule is used to transmit the downlink control channel using the second physical downlink control channel resource pattern in the time slot without SSB transmission;
  • the second physical downlink control channel resource pattern occupies consecutive N2 symbols in the time domain and B2 resource blocks in the frequency domain. Both N2 and B2 are positive integers greater than or equal to 1.
  • the second physical downlink control channel resource pattern is configured by the network device through high-layer signaling.
  • the device can use the applicable PDCCH resource pattern to transmit the downlink control channel in the current time slot according to whether there is an SSB in the current time slot, which can avoid the decrease of the capacity of the downlink control channel and prevent the time slot with the SSB from being unable to transmit the downlink control channel.
  • the device applies the above-mentioned method applied to network equipment, and the implementation manner of the embodiment of the above-mentioned method applied to network equipment is applicable to this device, and the same technical effect can be achieved.
  • Another embodiment of the present disclosure also provides a readable storage medium on which a program is stored.
  • the program is executed by a processor, the steps in the downlink control channel transmission method applied to the user equipment as described above, or The above is applied to the steps in the downlink control channel transmission method of the network equipment.
  • Computer-readable media include permanent and non-permanent, removable and non-removable media, and information storage can be realized by any method or technology.
  • the information can be computer-readable instructions, data structures, program modules, or other data.
  • Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, CD-ROM, digital versatile disc (DVD) or other optical storage, Magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media can be used to store information that can be accessed by computing devices. According to the definition in this article, computer-readable media does not include transitory media, such as modulated data signals and carrier waves.
  • the user equipment described in this specification includes but is not limited to smart phones, tablet computers, etc., and many of the described functional components are called modules, in order to more particularly emphasize the independence of their implementation methods.
  • the modules may be implemented by software so as to be executed by various types of processors.
  • an identified executable code module may include one or more physical or logical blocks of computer instructions, for example, it may be constructed as an object, process, or function. Nevertheless, the executable code of the identified module does not need to be physically located together, but can include different instructions stored in different bits. When these instructions are logically combined together, they constitute a module and implement the requirements of the module. purpose.
  • the executable code module may be a single instruction or many instructions, and may even be distributed on multiple different code segments, distributed in different programs, and distributed across multiple memory devices.
  • operational data can be identified within the module, and can be implemented in any suitable form and organized in any suitable type of data structure. The operating data may be collected as a single data set, or may be distributed in different locations (including on different storage devices), and at least partly may only exist as electronic signals on the system or network.
  • the module can be realized by software, considering the level of existing hardware technology, the module can be realized by software. Without considering the cost, those skilled in the art can build the corresponding hardware circuit to realize the corresponding function.
  • the hardware circuit includes conventional very large-scale integrated (VLSI) circuits or gate arrays, and existing semiconductors such as logic chips, transistors, or other discrete components.
  • VLSI very large-scale integrated
  • Modules can also be implemented with programmable hardware devices, such as field programmable gate arrays, programmable array logic, programmable logic devices, etc.
  • modules, units, sub-modules, sub-units, etc. can be implemented in one or more application specific integrated circuits (ASICs), digital signal processors (Digital Signal Processing, DSP), digital signal processing equipment ( DSP Device, DSPD), Programmable Logic Device (PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, Other electronic units or combinations thereof that perform the functions described in this application.
  • ASICs application specific integrated circuits
  • DSP Digital Signal Processing
  • DSP Device digital signal processing equipment
  • PLD Programmable Logic Device
  • Field-Programmable Gate Array Field-Programmable Gate Array
  • FPGA Field-Programmable Gate Array

Abstract

本公开提供一种下行控制信道的检测方法、传输方法及设备，涉及通信领域。该方法应用于用户设备，包括：根据当前时隙中是否存在同步信号块SSB，使用对应的物理下行控制信道资源图样在所述当前时隙中检测下行控制信道。

Description

下行控制信道的检测方法、传输方法及设备
相关申请的交叉引用
本申请主张在2019年7月18日在中国提交的中国专利申请号No.201910651951.8的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信领域，特别是指一种下行控制信道的检测方法、传输方法及设备。
背景技术
在卫星通信系统中，同步信号块SSB按照固定的图样进行周期发送。每个SSB在时域上占据4个连续的正交频分复用OFDM符号，且在传输SSB的时隙内，第一个SSB占据第4至第7个OFDM符号。考虑到峰值平均功率比PAPR的需求，下行控制信道和SSB采用时分复用TDM的方式进行复用，且位于每个时隙(slot)的前N个符号上。而slot的第一个符号用于传输公共参考信号(Common Reference Signal，CRS)，不能用于传输其他信道。
然而，卫星通信系统中采用离散傅里叶变换扩频正交频分复用DFT-s-OFDM波形，为了保证单载波特性，传输带宽上的一个时域符号上不能传输不同信道。如果控制资源集CORESET和传输SSB的符号发生了碰撞，将导致CORESET内的所有物理下行控制信道PDCCH均不能正常传输，从而导致调度失败。
发明内容
本公开的目的是提供一种下行控制信道的检测方法、传输方法及设备，以解决CORESET和SSB的符号发生了碰撞而导致CORESET内的PDCCH不能正常传输，调度失败的问题。
为达到上述目的，本公开的实施例提供一种下行控制信道的检测方法，应用于用户设备，包括：
根据当前时隙中是否存在同步信号块SSB，使用对应的物理下行控制信道资源图样在所述当前时隙中检测下行控制信道。
可选地，所述根据当前时隙中是否存在同步信号块SSB，使用对应的物理下行控制信道资源图样在所述当前时隙中检测下行控制信道，包括：
在传输SSB的时隙中，使用第一物理下行控制信道资源图样检测下行控制信道；其中，
所述第一物理下行控制信道资源图样在时域上占据连续的N1个符号，在频域上占据B1个资源块，且所述N1个符号与传输SSB的符号无重叠，其中，N1为大于或等于1的正整数，B1为大于或等于1的正整数。
可选地，所述第一物理下行控制信道资源图样为协议预定义或者根据SSB的资源位置确定的。
可选地，所述根据当前时隙中是否存在同步信号块SSB，使用对应的物理下行控制信道资源图样在所述当前时隙中检测下行控制信道，包括：
在无SSB传输的时隙中，使用第二物理下行控制信道资源图样检测下行控制信道；其中，
所述第二物理下行控制信道资源图样在时域上占据连续的N2个符号，在频域上占据B2个资源块，N2和B2均为大于或等于1的正整数。
可选地，所述第二物理下行控制信道资源图样为网络设备通过高层信令配置的。
为达到上述目的，本公开的实施例提供一种下行控制信道的传输方法，应用于网络设备，包括：
根据当前时隙中是否存在同步信号块SSB，使用对应的物理下行控制信道资源图样在所述当前时隙中传输下行控制信道。
可选地，所述根据当前时隙中是否存在同步信号块SSB，使用对应的物理下行控制信道资源图样在所述当前时隙中传输下行控制信道，包括：
在传输SSB的时隙中，使用第一物理下行控制信道资源图样传输下行控制信道；其中，
所述第一物理下行控制信道资源图样在时域上占据连续的N1个符号，在频域上占据B1个资源块，且所述N1个符号与传输SSB的符号无重叠，其 中，N1为大于或等于1的正整数，B1为大于或等于1的正整数。
可选地，所述第一物理下行控制信道资源图样为协议预定义或者根据SSB的资源位置确定的。
可选地，所述根据当前时隙中是否存在同步信号块SSB，使用对应的物理下行控制信道资源图样在所述当前时隙中传输下行控制信道，包括：
在无SSB传输的时隙中，使用第二物理下行控制信道资源图样传输下行控制信道；其中，
所述第二物理下行控制信道资源图样在时域上占据连续的N2个符号，在频域上占据B2个资源块，N2和B2均为大于或等于1的正整数。
可选地，所述第二物理下行控制信道资源图样为网络设备通过高层信令配置的。
为达到上述目的，本公开的实施例提供一种用户设备，包括收发器、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序；所述处理器执行所述程序时实现以下步骤：
根据当前时隙中是否存在同步信号块SSB，使用对应的物理下行控制信道资源图样在所述当前时隙中检测下行控制信道。
可选地，所述处理器还用于：
在传输SSB的时隙中，使用第一物理下行控制信道资源图样检测下行控制信道；其中，
所述第一物理下行控制信道资源图样在时域上占据连续的N1个符号，在频域上占据B1个资源块，且所述N1个符号与传输SSB的符号无重叠，其中，N1为大于或等于1的正整数，B1为大于或等于1的正整数。
可选地，所述第一物理下行控制信道资源图样为协议预定义或者根据SSB的资源位置确定的。
可选地，所述处理器还用于：
在无SSB传输的时隙中，使用第二物理下行控制信道资源图样检测下行控制信道；其中，
所述第二物理下行控制信道资源图样在时域上占据连续的N2个符号，在频域上占据B2个资源块，N2和B2均为大于或等于1的正整数。
可选地，所述第二物理下行控制信道资源图样为网络设备通过高层信令配置的。
为达到上述目的，本公开的实施例提供一种网络设备，包括收发器、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序；所述收发器执行所述程序时实现以下步骤：
根据当前时隙中是否存在同步信号块SSB，使用对应的物理下行控制信道资源图样在所述当前时隙中传输下行控制信道。
可选地，所述收发器还用于：
在传输SSB的时隙中，使用第一物理下行控制信道资源图样传输下行控制信道；其中，
所述第一物理下行控制信道资源图样在时域上占据连续的N1个符号，在频域上占据B1个资源块，且所述N1个符号与传输SSB的符号无重叠，其中，N1为大于或等于1的正整数，B1为大于或等于1的正整数。
可选地，所述第一物理下行控制信道资源图样为协议预定义或者根据SSB的资源位置确定的。
可选地，所述收发器还用于：
在无SSB传输的时隙中，使用第二物理下行控制信道资源图样传输下行控制信道；其中，
所述第二物理下行控制信道资源图样在时域上占据连续的N2个符号，在频域上占据B2个资源块，N2和B2均为大于或等于1的正整数。
可选地，所述第二物理下行控制信道资源图样为网络设备通过高层信令配置的。
为达到上述目的，本公开的实施例提供一种下行控制信道的检测装置，应用于用户设备，包括：
处理模块，用于根据当前时隙中是否存在同步信号块SSB，使用对应的物理下行控制信道资源图样在所述当前时隙中检测下行控制信道。
为达到上述目的，本公开的实施例提供一种下行控制信道的传输装置，应用于网络设备，包括：
传输模块，用于根据当前时隙中是否存在同步信号块SSB，使用对应的 物理下行控制信道资源图样在所述当前时隙中传输下行控制信道。
为达到上述目的，本公开的实施例提供一种可读存储介质，其上存储有程序，所述程序被处理器执行时实现如上应用于用户设备的下行控制信道的传输方法中的步骤，或者实现如上应用于网络设备的下行控制信道的传输方法中的步骤。
本公开的上述技术方案的有益效果如下：
本公开的一些实施例的方法，能够根据当前时隙中是否存在SSB，使用适用的PDCCH资源图样(pattern)在当前时隙中检测下行控制信道，可以避免下行控制信道容量的下降，避免存在SSB的时隙无法发送下行控制信道。
附图说明
图1为本公开的一些实施例的下行控制信道的检测方法的流程示意图；
图2为本公开的一些实施例的方法的应用示意图之一；
图3为本公开的一些实施例的方法的应用示意图之二；
图4为本公开的一些实施例的下行控制信道的传输方法的流程示意图；
图5为本公开的一些实施例的用户设备的结构示意图；以及
图6为本公开的一些实施例的网络设备的结构示意图。
具体实施方式
为使本公开要解决的技术问题、技术方案和优点更加清楚，下面将结合附图及具体实施例进行详细描述。
如图1所示，本公开的一些实施例的下行控制信道的检测方法，应用于用户设备，包括：
步骤101，根据当前时隙中是否存在同步信号块SSB，使用对应的物理下行控制信道资源图样在所述当前时隙中检测下行控制信道。
本公开的实施例中，针对时隙中是否存在SSB，设置了多种物理下行控制信道PDCCH资源图样pattern，其中PDCCH资源pattern为用于下行控制信道传输的物理资源大小。这样，用户设备按照步骤101，能够根据当前时隙中是否存在SSB，使用适用的PDCCH资源pattern在当前时隙中检测下行 控制信道，可以避免下行控制信道容量的下降，避免存在SSB的时隙无法发送下行控制信道。
当然，对应的网络设备也会根据当前时隙中是否存在SSB，使用对应的PDCCH资源pattern在该当前时隙中传输下行控制信道，以完成用户用户设备对下行控制信息的检测接收。
可选地，步骤101包括：
在传输SSB的时隙中，使用第一物理下行控制信道资源图样检测下行控制信道；其中，
所述第一物理下行控制信道资源图样在时域上占据连续的N1个符号，在频域上占据B1个资源块，且所述N1个符号与传输SSB的符号无重叠，其中，N1为大于或等于1的正整数，B1为大于或等于1的正整数。
这里，第一PDCCH资源pattern是适用传输SSB的时隙中下行控制信道检测的PDCCH资源pattern，其中该第一PDCCH资源pattern在时域上占据连续的N1个符号，在频域上占据B1个资源块RB。如此，用户设备在存在SSB的时隙中，就能够使用第一PDCCH资源pattern来进行下行控制信道的检测接收。
相应的，网络设备在传输SSB的时隙中，是使用该第一PDCCH资源pattern传输下行控制信道的。
该实施例中，为保证PDCCH的传输资源在时域上与SSB没有重叠，可选地，所述第一物理下行控制信道资源图样为协议预定义或者根据SSB的资源位置确定的。
这里，对于协议预定义的第一PDCCH资源pattern，或者根据SSB的资源位置确定的第一PDCCH资源pattern，其在时域上占据连续的N1个符号在时域上与SSB没有重叠。
此外，该实施例中，步骤101还包括：
在无SSB传输的时隙中，使用第二物理下行控制信道资源图样检测下行控制信道；其中，
所述第二物理下行控制信道资源图样在时域上占据连续的N2个符号，在频域上占据B2个资源块，N2和B2均为大于或等于1的正整数。
这里，第二PDCCH资源pattern是适用无SSB传输的时隙中下行控制信道检测的PDCCH资源pattern，其中该第二PDCCH资源pattern在时域上占据连续的N2个符号，在频域上占据B2个资源块RB。如此，用户设备在不存在SSB的时隙中，就能够使用第二PDCCH资源pattern来进行下行控制信道的检测接收。
相应的，网络设备在无SSB传输的时隙中，是使用该第二PDCCH资源pattern传输下行控制信道的。
可选地，所述第二物理下行控制信道资源图样为网络设备通过高层信令配置的。
下面结合具体场景说明本公开的一些实施例的方法的应用：
场景一、网络设备如基站，需要在20ms周期内发送两个SSB(SSB#1和SSB#2)，且该SSB在5ms内发送完毕。在发送SSB的时隙slot(slot#0)内，SSB#1占据符号{#2 #3 #4 #5}，SSB#2占据符号{#8 #9 #10 #11}。基站为用户设备配置的下行控制信道传输区域为：slot内的符号{#1 #2 #3}，频域上占据整个传输带宽B3。其中符号#0用于传输CRS。该下行控制信道传输区域称为PDCCH资源pattern1。同时定义PDCCH资源pattern2，具体为:在时域上占据slot内的符号{#1}，在频域上占据整个传输带宽B3。
如图2所示，在没有传输SSB的slot(slot#1)内，基站按照PDCCH资源pattern1发送下行控制信道，用户设备按照PDCCH资源pattern1检测并接收下行控制信道；在传输SSB的slot(slot#0)内，基站按照PDCCH资源pattern2发送下行控制信道，用户设备按照PDCCH pattern2检测并接收下行控制信道。也即，基站和用户设备按照SSB的传输位置，自适应的调整下行控制信道的传输和接收区域。
据此，基站不需要按照单一PDCCH资源pattern进行下行控制信道传输，从而避免造成为传输SSB的slot上控制信道容量的下降，而且可以保证用户设备在SSB时隙对于PDCCH的检测和接收。
场景二、网络设备如基站，需要在20ms周期内发送两个SSB(SSB#1和SSB#2)，且该SSB在5ms内发送完毕。在发送SSB的slot(slot#0)内，SSB#1占据符号{#2 #3 #4 #5}，SSB#2占据符号{#8 #9 #10 #11}。基站为 用户设备配置的下行控制信道传输区域为：slot内的符号{#1 #2 #3}，频域上占据带宽B4。其中带宽B4可已通过CORESET#0的频域大小隐式确定，例如与CORESET#0在频域上所占RB个数相同。其中符号#0用于传输CRS。该下行控制信道传输区域称为PDCCH资源pattern3。同时定义PDCCH资源pattern4，具体为:在时域上占据slot内的符号{#1}，在频域上占据整个传输带宽B5，其中B5>B4。
如图3所示，在没有传输SSB的slot(slot#1)内，基站按照PDCCH资源pattern4发送下行控制信道，用户设备按照PDCCH资源pattern4检测并接收下行控制信道；在传输SSB的slot(slot#0)内，基站按照PDCCH资源pattern3发送下行控制信道，用户设备按照PDCCH资源pattern3检测并接收下行控制信道。也即，基站和用户设备按照SSB的传输位置，自适应的调整下行控制信道的传输和接收区域。
据此，基站不需要按照单一PDCCH资源pattern进行下行控制信道传输，从而避免造成下行控制信道容量的下降，而且可以保证用户设备在SSB时隙对于PDCCH的检测接收。
综上，本公开的一些实施例的下行控制信道的检测方法，能够根据当前时隙中是否存在SSB，使用适用的PDCCH资源pattern在当前时隙中检测下行控制信道，可以避免下行控制信道容量的下降，避免存在SSB的时隙无法发送下行控制信道。
如图4所示，本公开的实施例提供一种下行控制信道的传输方法，应用于网络设备，包括：
步骤401，根据当前时隙中是否存在同步信号块SSB，使用对应的物理下行控制信道资源图样在所述当前时隙中传输下行控制信道。
通过该步骤，网络设备能够根据当前时隙中是否存在SSB，使用适用的PDCCH资源pattern在该当前时隙中传输下行控制信道，可以避免下行控制信道容量的下降，避免存在SSB的时隙无法发送下行控制信道。
可选地，步骤401，包括：
在传输SSB的时隙中，使用第一物理下行控制信道资源图样传输下行控制信道；其中，
所述第一物理下行控制信道资源图样在时域上占据连续的N1个符号，在频域上占据B1个资源块，且所述N1个符号与传输SSB的符号无重叠，其中，N1为大于或等于1的正整数，B1为大于或等于1的正整数。
这里，第一PDCCH资源pattern是适用传输SSB的时隙中下行控制信道检测的PDCCH资源pattern，其中该第一PDCCH资源pattern在时域上占据连续的N1个符号，在频域上占据B1个资源块RB。
可选地，所述第一物理下行控制信道资源图样为协议预定义或者根据SSB的资源位置确定的。
这里，对于协议预定义的第一PDCCH资源pattern，或者根据SSB的资源位置确定的第一PDCCH资源pattern，其在时域上占据连续的N1个符号在时域上与SSB没有重叠。
可选地，步骤401，包括：
在无SSB传输的时隙中，使用第二物理下行控制信道资源图样传输下行控制信道；其中，
所述第二物理下行控制信道资源图样在时域上占据连续的N2个符号，在频域上占据B2个资源块，N2和B2均为大于或等于1的正整数。
这里，第二PDCCH资源pattern是适用无SSB传输的时隙中下行控制信道检测的PDCCH资源pattern，其中该第二PDCCH资源pattern在时域上占据连续的N2个符号，在频域上占据B2个资源块RB。如此，网络设备在不存在SSB的时隙中，就能够使用第二PDCCH资源pattern在该当前时隙中传输下行控制信道。
可选地，所述第二物理下行控制信道资源图样为网络设备通过高层信令配置的。
需要说明的是，该方法应用于网络设备，与上述应用于用户设备的下行控制信道的检测方法配合，实现下行控制信道的发送和接收。上述应用于用户设备的方法实施例的实现方式适用于该装置，也能达到相同的技术效果。
如图5所示，本公开的实施例还提供了一种用户设备，包括收发器520、存储器540、处理器510及存储在所述存储器540上并可在所述处理器510上运行的程序；所述处理器510执行所述程序时实现以下步骤：
根据当前时隙中是否存在同步信号块SSB，使用对应的物理下行控制信道资源图样在所述当前时隙中检测下行控制信道。
可选地，所述处理器510还用于：
在传输SSB的时隙中，使用第一物理下行控制信道资源图样检测下行控制信道；其中，
所述第一物理下行控制信道资源图样在时域上占据连续的N1个符号，在频域上占据B1个资源块，且所述N1个符号与传输SSB的符号无重叠，其中，N1为大于或等于1的正整数，B1为大于或等于1的正整数。
可选地，所述第一物理下行控制信道资源图样为协议预定义或者根据SSB的资源位置确定的。
可选地，所述处理器510还用于：
在无SSB传输的时隙中，使用第二物理下行控制信道资源图样检测下行控制信道；其中，
所述第二物理下行控制信道资源图样在时域上占据连续的N2个符号，在频域上占据B2个资源块，N2和B2均为大于或等于1的正整数。
可选地，所述第二物理下行控制信道资源图样为网络设备通过高层信令配置的。
在图5中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器510代表的一个或多个处理器和存储器540代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发器520可以是一个元件，也可以是多个元件，比如多个接收机和发送机，提供用于在传输介质上与各种其他装置通信的单元。例如：收发器520从其他设备接收外部数据。收发器520用于将处理器510处理后的数据发送给其他设备。取决于计算系统的性质，还可以提供用户接口530，例如小键盘、显示器、扬声器、麦克风、操纵杆。
处理器510负责管理总线500和通常的处理。而存储器540可以被用于存储处理器510在执行操作时所使用的数据。
可选的，处理器510可以是CPU、ASIC、FPGA或CPLD。
如图6所示，本公开的实施例提供一种网络设备，包括收发器620、存储器630、处理器610及存储在所述存储器630上并可在所述处理器510上运行的程序；所述处理器610执行所述程序时实现以下步骤：
根据当前时隙中是否存在同步信号块SSB，使用对应的物理下行控制信道资源图样在所述当前时隙中传输下行控制信道。
可选地，所述收发器620还用于：
在传输SSB的时隙中，使用第一物理下行控制信道资源图样传输下行控制信道；其中，
所述第一物理下行控制信道资源图样在时域上占据连续的N1个符号，在频域上占据B1个资源块，且所述N1个符号与传输SSB的符号无重叠，其中，N1为大于或等于1的正整数，B1为大于或等于1的正整数。
可选地，所述第一物理下行控制信道资源图样为协议预定义或者根据SSB的资源位置确定的。
可选地，所述收发器620还用于：
在无SSB传输的时隙中，使用第二物理下行控制信道资源图样传输下行控制信道；其中，
所述第二物理下行控制信道资源图样在时域上占据连续的N2个符号，在频域上占据B2个资源块，N2和B2均为大于或等于1的正整数。
可选地，所述第二物理下行控制信道资源图样为网络设备通过高层信令配置的。
其中，收发器620用于在处理器610的控制下接收和发送数据。在图6中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器610代表的一个或多个处理器和存储器630代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发器620可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。处理器610负责管理总线架构和通常的处理，存储器630可以存储处理器610在执行操作时所使用的数据。
处理器610负责管理总线架构和通常的处理，存储器630可以存储处理器610在执行操作时所使用的数据。
本公开的实施例提供一种下行控制信道的检测装置，应用于用户设备，包括：
处理模块，用于根据当前时隙中是否存在同步信号块SSB，使用对应的物理下行控制信道资源图样在所述当前时隙中检测下行控制信道。
可选地，所述处理模块包括：
第一处理子模块，用于在传输SSB的时隙中，使用第一物理下行控制信道资源图样检测下行控制信道；其中，
所述第一物理下行控制信道资源图样在时域上占据连续的N1个符号，在频域上占据B1个资源块，且所述N1个符号与传输SSB的符号无重叠，其中，N1为大于或等于1的正整数，B1为大于或等于1的正整数。
可选地，所述第一物理下行控制信道资源图样为协议预定义或者根据SSB的资源位置确定的。
可选地，所述处理模块包括：
第二处理子模块，用于在无SSB传输的时隙中，使用第二物理下行控制信道资源图样检测下行控制信道；其中，
所述第二物理下行控制信道资源图样在时域上占据连续的N2个符号，在频域上占据B2个资源块，N2和B2均为大于或等于1的正整数。
可选地，所述第二物理下行控制信道资源图样为网络设备通过高层信令配置的。
该装置能够根据当前时隙中是否存在SSB，使用适用的PDCCH资源pattern在当前时隙中检测下行控制信道，可以避免下行控制信道容量的下降，避免存在SSB的时隙无法发送下行控制信道。
需要说明的是，该装置应用了上述应用于用户设备的方法，上述应用于用户设备的方法实施例的实现方式适用于该装置，也能达到相同的技术效果。
本公开的实施例还提供了一种下行控制信道的传输装置，应用于网络设备，包括：
传输模块，用于根据当前时隙中是否存在同步信号块SSB，使用对应的 物理下行控制信道资源图样在所述当前时隙中传输下行控制信道。
可选地，所述传输模块包括：
第一传输子模块，用于在传输SSB的时隙中，使用第一物理下行控制信道资源图样传输下行控制信道；其中，
所述第一物理下行控制信道资源图样在时域上占据连续的N1个符号，在频域上占据B1个资源块，且所述N1个符号与传输SSB的符号无重叠，其中，N1为大于或等于1的正整数，B1为大于或等于1的正整数。
可选地，所述第一物理下行控制信道资源图样为协议预定义或者根据SSB的资源位置确定的。
可选地，所述传输模块包括：
第二传输子模块，用于在无SSB传输的时隙中，使用第二物理下行控制信道资源图样传输下行控制信道；其中，
所述第二物理下行控制信道资源图样在时域上占据连续的N2个符号，在频域上占据B2个资源块，N2和B2均为大于或等于1的正整数。
可选地，所述第二物理下行控制信道资源图样为网络设备通过高层信令配置的。
该装置能够根据当前时隙中是否存在SSB，使用适用的PDCCH资源pattern在该当前时隙中传输下行控制信道，可以避免下行控制信道容量的下降，避免存在SSB的时隙无法发送下行控制信道。
需要说明的是，该装置应用了上述应用于网络设备的方法，上述应用于网络设备的方法实施例的实现方式适用于该装置，也能达到相同的技术效果。
本公开的另一实施例还提供了一种可读存储介质，其上存储有程序，所述程序被处理器执行时实现如上应用于用户设备的下行控制信道的传输方法中的步骤，或者实现如上应用于网络设备的下行控制信道的传输方法中的步骤。
计算机可读介质包括永久性和非永久性、可移动和非可移动媒体可以由任何方法或技术来实现信息存储。信息可以是计算机可读指令、数据结构、程序的模块或其他数据。计算机的存储介质的例子包括，但不限于相变内存(PRAM)、静态随机存取存储器(SRAM)、动态随机存取存储器(DRAM)、 其他类型的随机存取存储器(RAM)、只读存储器(ROM)、电可擦除可编程只读存储器(EEPROM)、快闪记忆体或其他内存技术、只读光盘只读存储器(CD-ROM)、数字多功能光盘(DVD)或其他光学存储、磁盒式磁带，磁带磁磁盘存储或其他磁性存储设备或任何其他非传输介质，可用于存储可以被计算设备访问的信息。按照本文中的界定，计算机可读介质不包括暂存电脑可读媒体(transitory media)，如调制的数据信号和载波。
进一步需要说明的是，此说明书中所描述的用户设备包括但不限于智能手机、平板电脑等，且所描述的许多功能部件都被称为模块，以便更加特别地强调其实现方式的独立性。
本公开的一些实施例中，模块可以用软件实现，以便由各种类型的处理器执行。举例来说，一个标识的可执行代码模块可以包括计算机指令的一个或多个物理或者逻辑块，举例来说，其可以被构建为对象、过程或函数。尽管如此，所标识模块的可执行代码无需物理地位于一起，而是可以包括存储在不同位里上的不同的指令，当这些指令逻辑上结合在一起时，其构成模块并且实现该模块的规定目的。
实际上，可执行代码模块可以是单条指令或者是许多条指令，并且甚至可以分布在多个不同的代码段上，分布在不同程序当中，以及跨越多个存储器设备分布。同样地，操作数据可以在模块内被识别，并且可以依照任何适当的形式实现并且被组织在任何适当类型的数据结构内。所述操作数据可以作为单个数据集被收集，或者可以分布在不同位置上(包括在不同存储设备上)，并且至少部分地可以仅作为电子信号存在于系统或网络上。
在模块可以利用软件实现时，考虑到现有硬件工艺的水平，所以可以以软件实现的模块，在不考虑成本的情况下，本领域技术人员都可以搭建对应的硬件电路来实现对应的功能，所述硬件电路包括常规的超大规模集成(VLSI)电路或者门阵列以及诸如逻辑芯片、晶体管之类的现有半导体或者是其它分立的元件。模块还可以用可编程硬件设备，诸如现场可编程门阵列、可编程阵列逻辑、可编程逻辑设备等实现。
可以理解的是，本公开的一些实施例描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现，模块、单元、子 模块、子单元等可以实现在一个或多个专用集成电路(Application Specific Integrated Circuits，ASIC)、数字信号处理器(Digital Signal Processing，DSP)、数字信号处理设备(DSP Device，DSPD)、可编程逻辑设备(Programmable Logic Device，PLD)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)、通用处理器、控制器、微控制器、微处理器、用于执行本申请所述功能的其它电子单元或其组合中。
上述范例性实施例是参考该些附图来描述的，许多不同的形式和实施例是可行而不偏离本公开精神及教示，因此，本公开不应被建构成为在此所提出范例性实施例的限制。更确切地说，这些范例性实施例被提供以使得本公开会是完善又完整，且会将本公开范围传达给那些熟知此项技术的人士。在该些图式中，组件尺寸及相对尺寸也许基于清晰起见而被夸大。在此所使用的术语只是基于描述特定范例性实施例目的，并无意成为限制用。如在此所使用地，除非该内文清楚地另有所指，否则该单数形式“一”、“一个”和“该”是意欲将该些多个形式也纳入。会进一步了解到该些术语“包含”及/或“包括”在使用于本说明书时，表示所述特征、整数、步骤、操作、构件及/或组件的存在，但不排除一或更多其它特征、整数、步骤、操作、构件、组件及/或其族群的存在或增加。除非另有所示，陈述时，一值范围包含该范围的上下限及其间的任何子范围。
以上所述是本公开的可选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本公开所述原理的前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本公开的保护范围。

Claims (23)

  1. 一种下行控制信道的检测方法，应用于用户设备，包括：
    根据当前时隙中是否存在同步信号块SSB，使用对应的物理下行控制信道资源图样在所述当前时隙中检测下行控制信道。
  2. 根据权利要求1所述的方法，其中，所述根据当前时隙中是否存在同步信号块SSB，使用对应的物理下行控制信道资源图样在所述当前时隙中检测下行控制信道，包括：
    在传输SSB的时隙中，使用第一物理下行控制信道资源图样检测下行控制信道；其中，
    所述第一物理下行控制信道资源图样在时域上占据连续的N1个符号，在频域上占据B1个资源块，且所述N1个符号与传输SSB的符号无重叠，其中，N1为大于或等于1的正整数，B1为大于或等于1的正整数。
  3. 根据权利要求2所述的方法，其中，所述第一物理下行控制信道资源图样为协议预定义或者根据SSB的资源位置确定的。
  4. 根据权利要求1所述的方法，其中，所述根据当前时隙中是否存在同步信号块SSB，使用对应的物理下行控制信道资源图样在所述当前时隙中检测下行控制信道，包括：
    在无SSB传输的时隙中，使用第二物理下行控制信道资源图样检测下行控制信道；其中，
    所述第二物理下行控制信道资源图样在时域上占据连续的N2个符号，在频域上占据B2个资源块，N2和B2均为大于或等于1的正整数。
  5. 根据权利要求4所述的方法，其中，所述第二物理下行控制信道资源图样为网络设备通过高层信令配置的。
  6. 一种下行控制信道的传输方法，应用于网络设备，包括：
    根据当前时隙中是否存在同步信号块SSB，使用对应的物理下行控制信道资源图样在所述当前时隙中传输下行控制信道。
  7. 根据权利要求6所述的方法，其中，所述根据当前时隙中是否存在同步信号块SSB，使用对应的物理下行控制信道资源图样在所述当前时隙中传 输下行控制信道，包括：
    在传输SSB的时隙中，使用第一物理下行控制信道资源图样传输下行控制信道；其中，
    所述第一物理下行控制信道资源图样在时域上占据连续的N1个符号，在频域上占据B1个资源块，且所述N1个符号与传输SSB的符号无重叠，其中，N1为大于或等于1的正整数，B1为大于或等于1的正整数。
  8. 根据权利要求7所述的方法，其中，所述第一物理下行控制信道资源图样为协议预定义或者根据SSB的资源位置确定的。
  9. 根据权利要求6所述的方法，其中，所述根据当前时隙中是否存在同步信号块SSB，使用对应的物理下行控制信道资源图样在所述当前时隙中传输下行控制信道，包括：
    在无SSB传输的时隙中，使用第二物理下行控制信道资源图样传输下行控制信道；其中，
    所述第二物理下行控制信道资源图样在时域上占据连续的N2个符号，在频域上占据B2个资源块，N2和B2均为大于或等于1的正整数。
  10. 根据权利要求9所述的方法，其中，所述第二物理下行控制信道资源图样为网络设备通过高层信令配置的。
  11. 一种用户设备，包括收发器、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序；其中，所述处理器执行所述程序时实现以下步骤：
    根据当前时隙中是否存在同步信号块SSB，使用对应的物理下行控制信道资源图样在所述当前时隙中检测下行控制信道。
  12. 根据权利要求11所述的用户设备，其中，所述处理器还用于：
    在传输SSB的时隙中，使用第一物理下行控制信道资源图样检测下行控制信道；其中，
    所述第一物理下行控制信道资源图样在时域上占据连续的N1个符号，在频域上占据B1个资源块，且所述N1个符号与传输SSB的符号无重叠，其中，N1为大于或等于1的正整数，B1为大于或等于1的正整数。
  13. 根据权利要求12所述的用户设备，其中，所述第一物理下行控制信 道资源图样为协议预定义或者根据SSB的资源位置确定的。
  14. 根据权利要求11所述的用户设备，其中，所述处理器还用于：
    在无SSB传输的时隙中，使用第二物理下行控制信道资源图样检测下行控制信道；其中，
    所述第二物理下行控制信道资源图样在时域上占据连续的N2个符号，在频域上占据B2个资源块，N2和B2均为大于或等于1的正整数。
  15. 根据权利要求14所述的用户设备，其中，所述第二物理下行控制信道资源图样为网络设备通过高层信令配置的。
  16. 一种网络设备，包括收发器、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序；其中，所述收发器执行所述程序时实现以下步骤：
    根据当前时隙中是否存在同步信号块SSB，使用对应的物理下行控制信道资源图样在所述当前时隙中传输下行控制信道。
  17. 根据权利要求16所述的网络设备，其中，所述收发器还用于：
    在传输SSB的时隙中，使用第一物理下行控制信道资源图样传输下行控制信道；其中，
    所述第一物理下行控制信道资源图样在时域上占据连续的N1个符号，在频域上占据B1个资源块，且所述N1个符号与传输SSB的符号无重叠，其中，N1为大于或等于1的正整数，B1为大于或等于1的正整数。
  18. 根据权利要求17所述的网络设备，其中，所述第一物理下行控制信道资源图样为协议预定义或者根据SSB的资源位置确定的。
  19. 根据权利要求16所述的网络设备，其中，所述收发器还用于：
    在无SSB传输的时隙中，使用第二物理下行控制信道资源图样传输下行控制信道；其中，
    所述第二物理下行控制信道资源图样在时域上占据连续的N2个符号，在频域上占据B2个资源块，N2和B2均为大于或等于1的正整数。
  20. 根据权利要求19所述的网络设备，其中，所述第二物理下行控制信道资源图样为网络设备通过高层信令配置的。
  21. 一种下行控制信道的检测装置，应用于用户设备，包括：
    处理模块，用于根据当前时隙中是否存在同步信号块SSB，使用对应的物理下行控制信道资源图样在所述当前时隙中检测下行控制信道。
  22. 一种下行控制信道的传输装置，应用于网络设备，包括：
    传输模块，用于根据当前时隙中是否存在同步信号块SSB，使用对应的物理下行控制信道资源图样在所述当前时隙中传输下行控制信道。
  23. 一种可读存储介质，其上存储有程序，其中，所述程序被处理器执行时实现如权利要求1至5任一项所述的下行控制信道的传输方法中的步骤，或者实现如权利要求6至10任一项所述的下行控制信道的传输方法中的步骤。
PCT/CN2020/101846 2019-07-18 2020-07-14 下行控制信道的检测方法、传输方法及设备 WO2021008517A1 (zh)

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