WO2020011094A1 - 搜索空间参数确定方法和终端设备 - Google Patents

搜索空间参数确定方法和终端设备 Download PDF

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Publication number
WO2020011094A1
WO2020011094A1 PCT/CN2019/094683 CN2019094683W WO2020011094A1 WO 2020011094 A1 WO2020011094 A1 WO 2020011094A1 CN 2019094683 W CN2019094683 W CN 2019094683W WO 2020011094 A1 WO2020011094 A1 WO 2020011094A1
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Prior art keywords
ssb
csi
target
terminal device
tci state
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PCT/CN2019/094683
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English (en)
French (fr)
Inventor
杨宇
孙鹏
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维沃移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to AU2019302968A priority Critical patent/AU2019302968B2/en
Priority to CA3105524A priority patent/CA3105524C/en
Priority to JP2021500214A priority patent/JP7262567B2/ja
Priority to RU2021102369A priority patent/RU2759842C1/ru
Priority to EP19833312.2A priority patent/EP3823188A4/en
Priority to SG11202013243QA priority patent/SG11202013243QA/en
Priority to KR1020217003712A priority patent/KR20210028246A/ko
Publication of WO2020011094A1 publication Critical patent/WO2020011094A1/zh
Priority to US17/147,268 priority patent/US20210136773A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • 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
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/231—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the layers above the physical layer, e.g. RRC or MAC-CE signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems

Definitions

  • the present disclosure relates to the field of communications, and in particular, to a method and terminal device for determining search space parameters.
  • the fifth generation (5th Generation, 5G) mobile communication system New Radio (NR) introduces large-scale antenna technology, which can better support Multi-User Multiple-Input Multiple-Output, MU-MIMO) antenna technology.
  • a digital signal to analog beamforming technique is used to achieve a rough match between the transmitted signal and the channel.
  • the purpose of the embodiments of the present disclosure is to provide a method for determining search space parameters and a terminal device, so as to solve the problem that the terminal device cannot accurately determine the parameter information of search space # 0 in the related art.
  • an embodiment of the present disclosure provides a method for determining a search space parameter, which is applied to a terminal device.
  • the method includes:
  • the dedicated signaling is used to configure the TCI state of CORESET # 0 for the terminal device, and the Source RS indicated by the TCI state of CORESET # 0 is a CSI-RS;
  • parameter information of search space # 0 in the CORESET # 0 is determined.
  • an embodiment of the present disclosure further provides a terminal device, including:
  • a receiving module configured to receive dedicated signaling, wherein the dedicated signaling is used to configure the TCI state of CORESET # 0 for the terminal device, and the Source RS indicated by the TCI state of CORESET # 0 is a CSI-RS;
  • a first determining module configured to determine a target SSB having a first association relationship with the CSI-RS
  • the second determining module is configured to determine parameter information of the search space # 0 in the CORESET # 0 according to the target SSB.
  • an embodiment of the present disclosure further provides a terminal device.
  • the terminal device includes a processor, a memory, and a computer program stored on the memory and executable on the processor.
  • the computer program is When the processor executes, the steps of the search space parameter determining method according to the first aspect are implemented.
  • an embodiment of the present disclosure further provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the search space according to the first aspect is implemented. Steps of the parameter determination method.
  • the TCI state of CORESET # 0 is configured for the terminal device through dedicated signaling.
  • the terminal device determines that there is a first association with the CSI-RS.
  • the target SSB of the relationship so that the terminal device can accurately determine the parameter information of the search space # 0 according to the target SSB, thereby effectively implementing the terminal device to accurately monitor the search space # 0.
  • FIG. 1 is a schematic diagram of a network architecture according to an embodiment of the present disclosure
  • FIG. 2 is a schematic flowchart of a search space parameter determining method according to an embodiment of the present disclosure
  • FIG. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of another terminal device according to an embodiment of the present disclosure.
  • FIG. 1 is a schematic diagram of a network architecture according to an embodiment of the present disclosure. As shown in FIG. 1, it includes a user terminal 11 and a base station 12.
  • the user terminal 11 may be a terminal equipment (UE), for example, a mobile phone, a tablet computer (Tablet Personal Computer), and a laptop computer (Laptop). Computer), personal digital assistant (PDA), mobile Internet device (MID) or wearable device (Wearable Device) and other terminal-side devices, it should be noted that in the embodiment of the present disclosure and The specific type of the user terminal 11 is not limited.
  • the above base station 12 may be a base station of 5G and later versions (for example, gNB, 5G, NR, and NB), or a base station in another communication system, or referred to as a Node B. It should be noted that in the embodiment of the present disclosure, only 5G The base station is taken as an example, but the specific type of the base station 12 is not limited.
  • FIG. 2 is a schematic flowchart of a search space parameter determining method according to an embodiment of the present disclosure. The method is applied to a terminal device, and the method may be as follows.
  • Step 210 Receive dedicated signaling, where the dedicated signaling is used to configure a terminal device with a Transmission Configuration Indication State (TCI state) of CORESET # 0, and a source reference signal (Source Reference Signal) indicated by TCI of CORESET # 0 Reference Signal (Source RS) is a channel state information reference signal (Channel Information Reference Signal (CSI-RS).
  • TCI state Transmission Configuration Indication State
  • Source Reference Signal Source Reference Signal
  • CSI-RS Channel Information Reference Signal
  • Step 220 Determine a target synchronization signal block (Synchronizing Signal Block) having a first association relationship with the CSI-RS.
  • Step 230 Determine parameter information of search space # 0 in CORESET # 0 according to the target SSB.
  • the network-side device configures the related information of CORESET # 0 for the terminal device through the Physical Broadcast Channel (PBCH).
  • PBCH Physical Broadcast Channel
  • the PBCH is a component of the SSB.
  • the CORESET # 0 and the SSB where the PBCH is located are spatially quasi co-located (spatial Quasi-colocation (spatial, QCL), so the terminal device can determine the parameter information of search space # 0 in CORESET # 0 according to the SSB where the PBCH where the related information of CORESET # 0 is configured is located.
  • the network-side device configures the TCI state of CORESET # 0 for the terminal device through the PBCH, and the SSB where the PBCH is located is the first SSB.
  • the network-side device sends downlink control information (Dlinklink Control Information) to the terminal device to schedule the PDSCH. If the terminal device receives the DCI receiving time and the PDSCH receiving time, The time offset between the receiving moments is less than or equal to a preset threshold.
  • the terminal device receives the PDSCH according to the TCI state of the CORESET with the smallest ID on the active bandwidth section (Bbandwidth Part (BWP)) of the current serving cell.
  • BWP Bandwidth Part
  • the terminal device switches SSB due to location movement, it switches from the first SSB to the second SSB, but the network-side device still sends according to the QCL information of CORESET # 0 configured by the PBCH in the first SSB without knowing it.
  • PDSCH which causes network-side equipment and terminal equipment to fail to correctly transmit data during the PDSCH scheduling process.
  • the network-side device configures the TCI of CORESET # 0 for the terminal device through dedicated signaling. In order to make the network-side device and the terminal device have the same understanding of the TCI state of CORESET # 0, and ensure that the network-side device and the terminal device perform data transmission correctly.
  • the network-side device configures the TCI state of CORESET # 0 for the terminal device through dedicated signaling.
  • the Source RS indicated by the TCI state of CORESET # 0 can be SSB or other RS such as CSI-RS.
  • the dedicated signaling includes at least one of the following:
  • Radio Resource Control RRC signaling
  • MAC Medium Access Control Layer Control Unit
  • the network-side device configures the TCI state of CORESET # 0 for the terminal device through RRC signaling; or, the network-side device configures and indicates the TCI state of CORESET # 0 for the terminal device through RRC signaling and MAC CE signaling.
  • TCI state of CORESET # 0 indicates the RS in the reference signal set (Reference Signal Set, RS Set), that is, the source RS.
  • the terminal device When the terminal device receives the dedicated signaling for configuring the TCI state of CORESET # 0 sent by the network-side device, and determines the Source indicated by the TCI state of CORESET # 0 configured by the network-side device according to the configuration information in the dedicated signaling CSI-RS, that is, when CORESET # 0 and CSI-RS are quasi-colocation (QCL), in order to determine the parameter information of search space # 0 in CORESET # 0, the terminal device needs to determine the relationship with the CSI-RS The target SSB with the first association relationship is used to determine the parameter information of search space # 0 according to the target SSB.
  • the first association relationship is that the CSI-RS and the target SSB are Quasi-colocation (QCL).
  • the first association relationship is that the CSI-RS and the target SSB are at least spatial quasi co-location spatial QCL.
  • determining a target SSB having an association relationship with a CSI-RS includes:
  • the terminal device In order to determine the target SSB that has a first association relationship with the CSI-RS indicated by the TCI state of CORESET # 0, the terminal device first determines the TCI state of the CSI-RS, where the TCI state of the CSI-RS is the network-side device configuration or Instructions.
  • the network-side device configures or indicates the TCI state of the RS for the terminal device, which is used to indicate the QCL information of the RS.
  • the SourceRS and the target reference signal TargetRS indicated by the TCI of the CSI-RS may be: the source RS is the SSB, and the target RS is the periodic channel state information reference signal (Periodic CSI-RS, P-CSI-RS) / Semi-Persistent CSI-RS (SP-CSI-RS); Source RS is P-CSI-RS, Target RS is P-CSI -RS; Source RS is SSB / P-CSI-RS / SP-CSI-RS, and Target RS is an aperiodic channel state information reference signal (Aperiodic CSI-RS, AP-CSI-RS).
  • Source RS and Target RS are QCL.
  • the terminal device may determine the target SSB in at least the following two ways.
  • determining the target SSB according to the TCI state of the CSI-RS includes:
  • the first SSB is determined as the target SSB.
  • the source indicated by the TCI state of the CSI-RS configured or indicated by the network-side device is the first SSB, that is, the CSI-RS and the first SSB are QCL. Therefore, the terminal device can determine the first SSB as the target SSB.
  • determining the target SSB according to the TCI state of the CSI-RS includes:
  • Source RS indicated by the TCI state of the CSI-RS is the target RS, determine a second SSB having a second association relationship with the target RS, where the target RS is an RS other than the SSB;
  • the second SSB is determined as the target SSB.
  • the second association relationship is that the target RS and the second SSB are QCL.
  • the second association relationship is that the target RS and the second SSB are at least spatial QCL.
  • the terminal device needs to indirectly determine the target SSB:
  • the target RS is the Source RS indicated by the TCI state of the CSI-RS, that is, the target RS and the CSI-RS are QCL.
  • the terminal device indirectly determines that the CSI-RS and the second SSB are QCL, and can determine the second SSB as the target SSB.
  • Source RS is the first P-CSI-RS.
  • the terminal device determines the TCI state of the first P-CSI-RS configured or indicated by the network-side device, and if the Source RS indicated by the TCI state of the first P-CSI-RS is the target RS (second P-CSI-RS) That is, the first P-CSI-RS and the target RS (second P-CSI-RS) are QCL, the terminal device needs to further determine that there is a second association with the target RS (second P-CSI-RS).
  • the second SSB of the relationship that is, the target RS (second P-CSI-RS) and the second SSB are QCL, and the terminal device can indirectly determine that the first P-CSI-RS and the second SSB are QCL, and can The second SSB is determined as the target SSB.
  • the terminal device may directly or indirectly determine a second SSB that has a second association relationship with the target RS.
  • the TCI state of the target RS is determined. If the Source RS indicated by the TCI state of the target RS is the second SSB, the terminal device may directly determine the second SSB.
  • the terminal device determines the TCI state of the target RS (second P-CSI-RS) configured or indicated by the network-side device. If the target RS (second P-CSI-RS) -CSI-RS) The source RS indicated by the TCI state is the second SSB, that is, the target RS (second P-CSI-RS) and the second SSB are QCL. At this time, the terminal device can directly determine the second SSB.
  • the terminal device indirectly determines the second SSB according to the target RS: determine the second SSB that is associated with the other RS, that is, The other RS and the second SSB are QCL. Since the other RS and the target RS are QCL, the terminal device indirectly determines that the target RS and the second SSB are QCL, that is, the second SSB is indirectly determined.
  • the terminal device determines the TCI state of the target RS (second P-CSI-RS) configured or indicated by the network-side device. If the target RS (second P-CSI-RS) -CSI-RS) The source RS indicated by the TCI state is the third P-CSI-RS, that is, the third P-CSI-RS and the target RS (second P-CSI-RS) are QCL.
  • the terminal device further determines the TCI state of the third P-CSI-RS configured or indicated by the network-side device. If the Source RS indicated by the TCI state of the third P-CSI-RS is the second SSB, the third P- The CSI-RS and the second SSB are QCL.
  • the terminal device indirectly determines that the target RS (second P-CSI-RS) and the second SSB are QCL, that is, the second SSB is indirectly determined.
  • parameter information of search space # 0 in CORESET # 0 can be determined according to the target SSB.
  • search space # 0 is a search space configured in CORESET # 0 with an index of 0.
  • the parameter information of search space # 0 is used to instruct the terminal device to monitor the common search space of the physical downlink control channel (Type0 Physical Downlink Control Channel, Type0-PDCCH).
  • the parameter information of search space # 0 includes at least one of the following:
  • Time-frequency resource information and spatial receiving parameter information are time-frequency resource information and spatial receiving parameter information.
  • the terminal device determines the number of consecutive resource blocks (RB) and the number of consecutive symbols of CORESET # 0 where search space # 0 is located according to the four most important bits in pdcch-ConfigSIB1 in the target protocol table. And determine PDCCH monitoring according to the least significant 4 bits in pdcch-ConfigSIB1.
  • the time offset is defined according to the subcarrier spacing of CORESET # 0.
  • the definition takes into account the minimum resource block index (RB index) from CORESET # 0 where searchspace # 0 is located and The minimum RB index in the common RB where the first RB of the target SSB overlaps.
  • the terminal device For the multiplexing pattern 1 of the target SSB and CORESET # 0, the terminal device monitors the PDCCH on searchspace # 0 in two adjacent time slots, and the starting time slot is n0. The terminal device determines parameters such as the index of the time slot n0 according to the index of the target SSB. For the multiplexing patterns 2 and 3 of the target SSB and CORESET # 0, the terminal device monitors the PDCCH on the search space # 0 in one slot, where the period of the search space # 0 is equal to the period of the target SSB. The terminal device determines parameters such as the index of the time slot according to the index of the target SSB.
  • the space receiving parameters of search # 0 are the same as the space receiving parameters of CORESET # 0.
  • the TCI state of CORESET # 0 is configured for the terminal device through dedicated signaling.
  • the Source indicated by the TCI state of CORESET # 0 is a CSI-RS
  • the terminal device determines that it exists with the CSI-RS.
  • the target SSB of the first association relationship enables the terminal device to accurately determine the parameter information of the search space # 0 according to the target SSB, thereby effectively implementing the terminal device to accurately monitor the search space # 0.
  • FIG. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • the terminal device 300 shown in FIG. 3 includes:
  • the receiving module 301 is configured to receive dedicated signaling, wherein the dedicated signaling is used to configure the TCI state of CORESET # 0 for the terminal device 300, and the SourceRS indicated by the TCI state of CORESET # 0 is CSI-RS;
  • the second determining module 303 is configured to determine parameter information of search space # 0 in CORESET # 0 according to the target SSB.
  • first determining module 302 and the second determining module 303 may be the same hardware signal processing module having a signal processing function, or may be different software signal processing modules having a signal processing function, which are not specifically limited herein.
  • the first association relationship is that the CSI-RS and the target SSB are QCL.
  • the first determining module 302 is further configured to:
  • the first determining module 302 is further configured to:
  • the first SSB is determined as the target SSB.
  • the first determining module 302 is further configured to:
  • Source RS indicated by the TCI state of the CSI-RS is the target RS, determine a second SSB having a second association relationship with the target RS, where the target RS is an RS other than the SSB;
  • the second SSB is determined as the target SSB.
  • the second association relationship is that the target RS and the second SSB are QCL.
  • the parameter information of search space # 0 is used to indicate a common search space monitoring Type0-PDCCH.
  • the parameter information of search space # 0 includes at least one of the following:
  • Time-frequency resource information and spatial receiving parameter information are time-frequency resource information and spatial receiving parameter information.
  • the dedicated signaling includes at least one of the following:
  • the terminal device 300 provided in the embodiment of the present disclosure can implement the processes implemented by the terminal device in the method embodiment in FIG. 2. To avoid repetition, details are not described herein again.
  • FIG. 4 is a schematic structural diagram of another terminal device according to an embodiment of the present disclosure.
  • the terminal device 400 shown in FIG. 4 includes at least one processor 401, a memory 402, at least one network interface 404, and a user interface 403.
  • the various components in the terminal device 400 are coupled together via a bus system 405.
  • the bus system 405 is used to implement connection and communication between these components.
  • the bus system 405 includes a power bus, a control bus, and a status signal bus in addition to the data bus. However, for the sake of clarity, various buses are marked as the bus system 405 in FIG. 4.
  • the user interface 403 may include a display, a keyboard, or a pointing device (for example, a mouse, a trackball, a touch panel, or a touch screen).
  • a pointing device for example, a mouse, a trackball, a touch panel, or a touch screen.
  • the memory 402 in the embodiment of the present disclosure may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), and an electronic memory. Erase programmable read-only memory (EPROM, EEPROM) or flash memory.
  • the volatile memory may be Random Access Memory (RAM), which is used as an external cache.
  • RAM Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • Synchronous Dynamic Random Access Memory Synchronous Dynamic Random Access Memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM, DDRSDRAM enhanced synchronous dynamic random access memory
  • Enhanced SDRAM, ESDRAM synchronous connection dynamic random access memory
  • Synch link DRAM SLDRAM
  • Direct Rambus RAM Direct Rambus RAM
  • the memory 402 stores the following elements, executable modules or data structures, or a subset of them, or their extended set: an operating system 4021 and an application program 4022.
  • the operating system 4021 includes various system programs, such as a framework layer, a core library layer, and a driver layer, etc., for implementing various basic services and processing hardware-based tasks.
  • the application program 4022 includes various application programs, such as a media player (Player), a browser (Browser), etc., and is used to implement various application services.
  • a program for implementing the method of the embodiment of the present disclosure may be included in the application program 4022.
  • the terminal device 400 further includes a computer program stored on the memory 402 and executable on the processor 401.
  • the computer program is executed by the processor 401, the following steps are implemented:
  • Receive dedicated signaling where the dedicated signaling is used to configure the TCI state of CORESET # 0 for the terminal device, and the SourceRS indicated by the TCI state of CORESET # 0 is CSI-RS; determine the target with the first association relationship with the CSI-RS SSB; According to the target SSB, determine the parameter information of search space # 0 in CORESET # 0.
  • the method disclosed in the foregoing embodiments of the present disclosure may be applied to the processor 401, or implemented by the processor 401.
  • the processor 401 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 401 or an instruction in the form of software.
  • the above-mentioned processor 401 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA), or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA off-the-shelf programmable gate array
  • Various methods, steps, and logical block diagrams disclosed in the embodiments of the present disclosure may be implemented or executed.
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in combination with the embodiments of the present disclosure may be directly embodied as completion of execution by a hardware decoding processor, or may be performed by using a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a mature computer-readable storage medium such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, and the like in the art.
  • the computer-readable storage medium is located in the memory 402, and the processor 401 reads the information in the memory 402 and completes the steps of the above method in combination with its hardware.
  • a computer program is stored on the computer-readable storage medium, and when the computer program is executed by the processor 401, each step of the method embodiment in FIG. 2 is implemented.
  • the embodiments described in the embodiments of the present disclosure may be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof.
  • the processing unit can be implemented in one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPD, DSP devices), and programmable Programmable Logic Device (PLD), Field-Programmable Gate Array (FPGA), general purpose processor, controller, microcontroller, microprocessor, other for performing functions described in this disclosure Electronic unit or combination thereof.
  • ASICs application-specific integrated circuits
  • DSPs digital signal processors
  • DSPD digital signal processing devices
  • PLD programmable Programmable Logic Device
  • FPGA Field-Programmable Gate Array
  • the technology described in the embodiments of the present disclosure may be implemented by modules (for example, procedures, functions, etc.) that perform the functions described in the embodiments of the present disclosure.
  • Software codes may be stored in a memory and executed by a processor.
  • the memory may be implemented in the processor or external to the processor.
  • the terminal device 400 can implement the processes implemented by the terminal device in the foregoing method embodiment in FIG. 2. To avoid repetition, details are not described herein again.
  • An embodiment of the present disclosure also provides a computer-readable storage medium.
  • a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, each process of the method embodiment in FIG. 2 is implemented, and the same can be achieved.
  • the computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

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Abstract

本公开的实施例公开了一种搜索空间参数确定方法和终端设备，所述方法包括：接收专用信令，其中，所述专用信令用于为所述终端设备配置CORESET#0的TCI state，所述CORESET#0的TCI state指示的Source RS为CSI-RS；确定与所述CSI-RS存在第一关联关系的目标SSB；根据所述目标SSB，确定所述CORESET#0中search space#0的参数信息。

Description

搜索空间参数确定方法和终端设备
相关申请的交叉引用
本申请主张在2018年7月13日在中国提交的中国专利申请No.201810772269.X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，尤其涉及一种搜索空间参数确定方法和终端设备。
背景技术
第五代(5th Generation，5G)移动通信系统新空口(New Radio，NR)引入了大规模天线技术，可以更好地支持多用户-多输入多输出(Multi-User Multiple-Input Multiple-Output，MU-MIMO)天线技术。为了减低大规模天线阵列导致的设备成本以及基带处理复杂度，通过数模混合波束赋形技术，使发送信号与信道实现较为粗略的匹配。
但是，在数模混合波束赋形技术中，目前仍缺少基于控制资源集(CORESET#0)的配置信息来确定CORESET#0中搜索空间(search space#0)的参数信息的方案，导致无法准确监听search space#0。
发明内容
本公开实施例的目的是提供一种搜索空间参数确定方法和终端设备，以解决相关技术中终端设备无法准确确定search space#0的参数信息的问题。
第一方面，本公开实施例提供了一种搜索空间参数确定方法，应用于终端设备，所述方法包括：
接收专用信令，其中，所述专用信令用于为所述终端设备配置CORESET#0的TCI state，所述CORESET#0的TCI state指示的Source RS为CSI-RS；
确定与所述CSI-RS存在第一关联关系的目标SSB；
根据所述目标SSB，确定所述CORESET#0中search space#0的参数信 息。
第二方面，本公开实施例还提供了一种终端设备，包括：
接收模块，用于接收专用信令，其中，所述专用信令用于为所述终端设备配置CORESET#0的TCI state，所述CORESET#0的TCI state指示的Source RS为CSI-RS；
第一确定模块，用于确定与所述CSI-RS存在第一关联关系的目标SSB；
第二确定模块，用于根据所述目标SSB，确定所述CORESET#0中search space#0的参数信息。
第三方面，本公开实施例还提供了一种终端设备，所述终端设备包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如第一方面所述的搜索空间参数确定方法的步骤。
第四方面，本公开实施例还提供了一种计算机可读存储介质，所述计算机可读存储介质上存储计算机程序，所述计算机程序被处理器执行时实现如第一方面所述的搜索空间参数确定方法的步骤。
本公开实施例中，通过专用信令为终端设备配置CORESET#0的TCI state，当CORESET#0的TCI state指示的Source RS为CSI-RS时，终端设备确定与该CSI-RS存在第一关联关系的目标SSB，从而使得终端设备可以根据该目标SSB，准确确定search space#0的参数信息，进而有效实现终端设备准确监听search space#0。
附图说明
此处所说明的附图用来提供对本公开的进一步理解，构成本公开的一部分，本公开的示意性实施例及其说明用于解释本公开，并不构成对本公开的不当限定。在附图中：
图1为本公开实施例提供的一种网络架构示意图；
图2为本公开实施例提供的一种搜索空间参数确定方法的流程示意图；
图3为本公开实施例提供的一种终端设备的结构示意图；
图4为本公开实施例提供的另一种终端设备的结构示意图。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
参见图1，图1为本公开实施例提供的一种网络架构示意图。如图1所示，包括用户终端11和基站12，其中，用户终端11可以是终端设备(User Equipment，UE)，例如：可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)、个人数字助理(personal digital assistant，PDA)、移动上网装置(Mobile Internet Device，MID)或可穿戴式设备(Wearable Device)等终端侧设备，需要说明的是，在本公开实施例中并不限定用户终端11的具体类型。上述基站12可以是5G及以后版本的基站(例如：gNB、5G NR NB)，或者其他通信系统中的基站，或者称之为节点B，需要说明的是，在本公开实施例中仅以5G基站为例，但是并不限定基站12的具体类型。
需要说明的是，上述用户终端11和基站12的具体功能将通过以下多个实施例进行具体描述。
图2为本公开实施例提供的一种搜索空间参数确定方法的流程示意图。所述方法应用于终端设备，所述方法可以如下所示。
步骤210，接收专用信令，其中，专用信令用于为终端设备配置CORESET#0的传输配置指示状态(Transmission Configuration Indication state，TCI state)，CORESET#0的TCI state指示的源参考信号(Source Reference Signal，Source RS)为信道状态信息参考信号(Channel State Information Reference Signal，CSI-RS)。
步骤220，确定与CSI-RS存在第一关联关系的目标同步信号块(Synchronizing Signal Block，SSB)。
步骤230，根据目标SSB，确定CORESET#0中search space#0的参数信息。
实际应用中，网络侧设备通过物理广播信道(Physical Broadcast Channel，PBCH)为终端设备配置CORESET#0的相关信息，PBCH是SSB的组成部分，CORESET#0与PBCH所在SSB是空间准共址(spatial Quasi-colocation，spatial QCL)的，因此，终端设备可以根据配置CORESET#0相关信息的PBCH所在的SSB，确定CORESET#0中search space#0的参数信息。
在一些实施例中，网络侧设备通过PBCH为终端设备配置CORESET#0的TCI state，该PBCH所在的SSB为第一SSB。在物理下行共享信道(Physical Downlink Shared Channel，PDSCH)调度过程中，网络侧设备向终端设备发送调度PDSCH的下行控制信息(Downlink Control Information，DCI)，若终端设备接收DCI的接收时刻与接收PDSCH的接收时刻之间的时间偏移小于等于预设阈值，终端设备根据当前服务小区中处于激活状态的带宽部分(Bandwidth Part，BWP)上具有最小ID的CORESET的TCI state来接收PDSCH，即终端设备根据第一SSB中PBCH配置的CORESET#0的QCL信息来接收PDSCH。
若终端设备由于位置移动而发生了SSB切换，从第一SSB切换到了第二SSB，但是网络侧设备在不知情的情况下，仍然根据第一SSB中PBCH配置的CORESET#0的QCL信息来发送PDSCH，导致调度PDSCH过程中网络侧设备和终端设备无法正确进行数据传输。
本公开实施例中，为了实现灵活配置CORESET#0以及在网络侧设备和终端设备之间准确传输CORESET#0上的控制信息，网络侧设备通过专用信令为终端设备配置CORESET#0的TCI state，使得网络侧设备和终端设备对CORESET#0的TCI state的理解一致，保证网络侧设备和终端设备正确进行数据传输。
网络侧设备通过专用信令为终端设备配置CORESET#0的TCI state，此时，CORESET#0的TCI state指示的Source RS可以为SSB，也可以为CSI-RS等其他RS。
本公开实施例中，专用信令包括下述至少一种：
无线资源控制(Radio Resource Control，RRC)信令、媒体接入控制层控制单元(Medium Access Control Control Element，MAC CE)信令。
例如，网络侧设备通过RRC信令，为终端设备配置CORESET#0的TCI state；或，网络侧设备通过RRC信令和MAC CE信令，为终端设备配置和指示CORESET#0的TCI state。
需要说明的是，CORESET#0的TCI state指示的是参考信号集合(Reference Signal set，RS set)中的RS，也即source RS。
当终端设备接收到网络侧设备发送的用于配置CORESET#0的TCI state的专用信令，且根据专用信令中的配置信息，确定网络侧设备配置的CORESET#0的TCI state指示的Source RS为CSI-RS，即CORESET#0与CSI-RS是准共址(Quasi-colocation，QCL)的时，为了确定CORESET#0中search space#0的参数信息，终端设备需要确定与该CSI-RS存在第一关联关系的目标SSB，进而根据目标SSB，来确定search space#0的参数信息。
本公开实施例中，第一关联关系为CSI-RS和目标SSB是准共址(Quasi-colocation，QCL)的。
可选地，第一关联关系为CSI-RS和目标SSB至少是空间准共址spatial QCL的。
本公开实施例中，确定与CSI-RS存在关联关系的目标SSB，包括：
确定CSI-RS的TCI state；
根据CSI-RS的TCI state，确定目标SSB。
为了确定与CORESET#0的TCI state指示的CSI-RS存在第一关联关系的目标SSB，终端设备首先确定该CSI-RS的TCI state，其中，该CSI-RS的TCI state是网络侧设备配置或指示的。
实际应用中，网络侧设备为终端设备配置或指示RS的TCI state，用于指示RS的QCL信息。其中，当TCI state用于指示CSI-RS的QCL信息时，CSI-RS的TCI state指示的Source RS和目标参考信号Target RS可以为：Source RS为SSB、Target RS为周期性信道状态信息参考信号(Periodic CSI-RS，P-CSI-RS)/半持续信道状态信息参考信号(Semi-Persistent CSI-RS，SP-CSI-RS)；Source RS为P-CSI-RS、Target RS为P-CSI-RS；Source RS为SSB/P-CSI-RS/SP-CSI-RS、Target RS为非周期性信道状态信息参考信号(Aperiodic CSI-RS，AP-CSI-RS)。其中，Source RS和Target RS是QCL的。
终端设备根据CSI-RS的TCI state，确定目标SSB的方式至少可以包括下述两种。
第一种：
本公开实施例中，根据CSI-RS的TCI state，确定目标SSB，包括：
若CSI-RS的TCI state指示的Source RS为第一SSB，则将第一SSB确定为目标SSB。
网络侧设备配置或指示的CSI-RS的TCI state指示的Source RS为第一SSB，即CSI-RS与第一SSB是QCL的。因此，终端设备可以将第一SSB确定为目标SSB。
第二种：
本公开实施例中，根据CSI-RS的TCI state，确定目标SSB，包括：
若CSI-RS的TCI state指示的Source RS为目标RS，则确定与目标RS存在第二关联关系的第二SSB，其中，目标RS为SSB以外的其他RS；
将第二SSB确定为目标SSB。
本公开实施例中，第二关联关系为目标RS和第二SSB是QCL的。
可选地，第二关联关系为目标RS和第二SSB至少是spatial QCL的。
网络侧设备配置或指示的CSI-RS的TCI state指示的Source RS为目标RS，且目标RS为SSB以外的其他RS时，终端设备需要间接确定目标SSB：
首先，确定与目标RS存在第二关联关系的第二SSB，即目标RS与第二SSB是QCL的；
然后，由于目标RS是该CSI-RS的TCI state指示的Source RS，即目标RS与该CSI-RS是QCL的。
因此，终端设备间接确定该CSI-RS与第二SSB是QCL的，可以将第二SSB确定为目标SSB。
例如，当终端设备接收到网络侧设备发送的用于配置CORESET#0的TCI state的专用信令，且根据专用信令中的配置信息，确定网络侧设备配置的CORESET#0的TCI state指示的Source RS为第一P-CSI-RS。
终端设备确定网络侧设备配置或指示的该第一P-CSI-RS的TCI state，若该第一P-CSI-RS的TCI state指示的Source RS为目标RS(第二P-CSI-RS)， 即该第一P-CSI-RS与该目标RS(第二P-CSI-RS)是QCL的，则终端设备需要进一步确定与该目标RS(第二P-CSI-RS)存在第二关联关系的第二SSB，即该目标RS(第二P-CSI-RS)与第二SSB是QCL的，进而终端设备可以间接确定该第一P-CSI-RS与第二SSB是QCL的，可以将第二SSB确定为目标SSB。
需要说明的是，终端设备可以通过直接或间接的方式来确定与目标RS存在第二关联关系的第二SSB。
a、直接方式。
确定目标RS的TCI state，若目标RS的TCI state指示的Source RS为第二SSB，则终端设备可以直接确定第二SSB。
仍以上述目标RS为第二P-CSI-RS为例，终端设备确定网络侧设备配置或指示的该目标RS(第二P-CSI-RS)的TCI state，若该目标RS(第二P-CSI-RS)的TCI state指示的Source RS为第二SSB，即该目标RS(第二P-CSI-RS)与第二SSB是QCL的，此时，终端设备可以直接确定第二SSB。
b、间接方式。
确定目标RS的TCI state，若目标RS的TCI state指示的Source RS为SSB以外的其他RS，则终端设备根据目标RS间接确定第二SSB：确定与该其他RS存在关联关系的第二SSB，即该其他RS与第二SSB是QCL的，由于该其他RS与目标RS是QCL的，则终端设备间接确定目标RS与第二SSB是QCL的，即间接确定第二SSB。
仍以上述目标RS为第二P-CSI-RS为例，终端设备确定网络侧设备配置或指示的该目标RS(第二P-CSI-RS)的TCI state，若该目标RS(第二P-CSI-RS)的TCI state指示的Source RS为第三P-CSI-RS，即该第三P-CSI-RS与该目标RS(第二P-CSI-RS)是QCL的。
终端设备进一步确定网络侧设备配置或指示的该第三P-CSI-RS的TCI state，若该第三P-CSI-RS的TCI state指示的Source RS为第二SSB，即该第三P-CSI-RS与第二SSB是QCL的。
此时，终端设备间接确定该目标RS(第二P-CSI-RS)与第二SSB是QCL的，即间接确定第二SSB。
终端设备确定目标SSB之后，可以根据该目标SSB确定CORESET#0中search space#0的参数信息。
其中，search space#0为配置在CORESET#0中、索引(index)为0的搜索空间。
本公开实施例中，search space#0的参数信息用于指示终端设备监听物理下行控制信道(Type0Physical Downlink Control Channel，Type0-PDCCH)的common search space。
其中，search space#0的参数信息包括下述至少一种：
时频资源信息、空间接收参数信息。
在一实施例中，终端设备根据目标协议表格中pdcch-ConfigSIB1中最重要的4个比特，确定search space#0所在CORESET#0的连续资源块(RB，Resource Block)个数和连续符号个数，并根据pdcch-ConfigSIB1中最不重要的4个比特确定PDCCH monitoring occasions。
在目标协议中，根据CORESET#0的子载波间隔(Subcarrier Spacing)来定义时间偏移(offset)，该定义考虑了从search space#0所在CORESET#0中最小资源块索引(RB index)到与目标SSB的第一个RB相重叠的common RB中的最小RB index。
对于目标SSB和CORESET#0的复用模式1(multiplexing pattern 1)，终端设备在相邻的2个时隙中监听search space#0上的PDCCH，起始时隙为n0。终端设备根据目标SSB的index确定时隙n0的index等参数。对于目标SSB和CORESET#0的multiplexing patterns 2和3，终端设备在1个时隙中监听search space#0上的PDCCH，其中search space#0的周期等于目标SSB的周期。终端设备根据目标SSB的index确定时隙的index等参数。
search space#0的空间接收参数与CORESET#0的空间接收参数相同。
本公开实施例记载的技术方案，通过专用信令为终端设备配置CORESET#0的TCI state，当CORESET#0的TCI state指示的Source RS为CSI-RS时，终端设备确定与该CSI-RS存在第一关联关系的目标SSB，从而使得终端设备可以根据该目标SSB，准确确定search space#0的参数信息，进而有效实现终端设备准确监听search space#0。
图3为本公开实施例提供的一种终端设备的结构示意图。图3所示的终端设备300包括：
接收模块301，用于接收专用信令，其中，专用信令用于为终端设备300配置CORESET#0的TCI state，CORESET#0的TCI state指示的Source RS为CSI-RS；
第一确定模块302，用于确定与CSI-RS存在第一关联关系的目标SSB；
第二确定模块303，用于根据目标SSB，确定CORESET#0中search space#0的参数信息。
需要说明的是，第一确定模块302和第二确定模块303可以为具有信号处理功能的同一硬件信号处理模块，也可以为具有信号处理功能的不同软件信号处理模块，这里不做具体限定。
可选地，第一关联关系为CSI-RS和目标SSB是QCL的。
可选地，第一确定模块302进一步用于：
确定CSI-RS的TCI state；
根据CSI-RS的TCI state，确定目标SSB。
可选地，第一确定模块302进一步用于：
若CSI-RS的TCI state指示的Source RS为第一SSB，则将第一SSB确定为目标SSB。
可选地，第一确定模块302进一步用于：
若CSI-RS的TCI state指示的Source RS为目标RS，则确定与目标RS存在第二关联关系的第二SSB，其中，目标RS为SSB以外的其他RS；
将第二SSB确定为目标SSB。
可选地，第二关联关系为目标RS和第二SSB是QCL的。
可选地，search space#0的参数信息用于指示监听Type0-PDCCH的common search space。
可选地，search space#0的参数信息包括下述至少一种：
时频资源信息、空间接收参数信息。
可选地，专用信令包括下述至少一种：
RRC信令、MAC CE信令。
本公开实施例提供的终端设备300能够实现图2的方法实施例中终端设备实现的各个过程，为避免重复，这里不再赘述。
图4为本公开实施例提供的另一种终端设备的结构示意图。图4所示的终端设备400包括：至少一个处理器401、存储器402、至少一个网络接口404和用户接口403。终端设备400中的各个组件通过总线系统405耦合在一起。可理解，总线系统405用于实现这些组件之间的连接通信。总线系统405除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图4中将各种总线都标为总线系统405。
其中，用户接口403可以包括显示器、键盘或者点击设备(例如，鼠标，轨迹球(trackball)、触感板或者触摸屏等。
可以理解，本公开实施例中的存储器402可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synch link DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DRRAM)。本公开实施例描述的系统和方法的存储器402旨在包括但不限于这些和任意其它适合类型的存储器。
在一些实施方式中，存储器402存储了如下的元素，可执行模块或者数据结构，或者他们的子集，或者他们的扩展集：操作系统4021和应用程序 4022。
其中，操作系统4021，包含各种系统程序，例如框架层、核心库层、驱动层等，用于实现各种基础业务以及处理基于硬件的任务。应用程序4022，包含各种应用程序，例如媒体播放器(Media Player)、浏览器(Browser)等，用于实现各种应用业务。实现本公开实施例方法的程序可以包含在应用程序4022中。
在本公开实施例中，终端设备400还包括：存储在存储器上402并可在处理器401上运行的计算机程序，计算机程序被处理器401执行时实现如下步骤：
接收专用信令，其中，专用信令用于为终端设备配置CORESET#0的TCI state，CORESET#0的TCI state指示的Source RS为CSI-RS；确定与CSI-RS存在第一关联关系的目标SSB；根据目标SSB，确定CORESET#0中search space#0的参数信息。
上述本公开实施例揭示的方法可以应用于处理器401中，或者由处理器401实现。处理器401可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤可以通过处理器401中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器401可以是通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本公开实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本公开实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的计算机可读存储介质中。该计算机可读存储介质位于存储器402，处理器401读取存储器402中的信息，结合其硬件完成上述方法的步骤。具体地，该计算机可读存储介质上存储有计算机程序，计算机程序被处理器401执行时实现如图2的方法实施例的各步骤。
可以理解的是，本公开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，处理单元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(DSPD，DSP Device)、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、用于执行本公开所述功能的其它电子单元或其组合中。
对于软件实现，可通过执行本公开实施例所述功能的模块(例如过程、函数等)来实现本公开实施例所述的技术。软件代码可存储在存储器中并通过处理器执行。存储器可以在处理器中或在处理器外部实现。
终端设备400能够实现前述图2的方法实施例中终端设备实现的各个过程，为避免重复，这里不再赘述。
本公开实施例还提供一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现上述图2的方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，所述的计算机可读存储介质，如只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本公开的技术方案本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器， 空调器，或者网络设备等)执行本公开各个实施例所述的方法。
上面结合附图对本公开的实施例进行了描述，但是本公开并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本公开的启示下，在不脱离本公开宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本公开的保护之内。

Claims (12)

  1. 一种搜索空间参数确定方法，应用于终端设备，其中，所述方法包括：
    接收专用信令，其中，所述专用信令用于为所述终端设备配置控制资源集CORESET#0的传输配置指示状态TCI state，所述CORESET#0的TCI state指示的源参考信号Source RS为信道状态信息参考信号CSI-RS；
    确定与所述CSI-RS存在第一关联关系的目标同步信号块SSB；
    根据所述目标SSB，确定所述CORESET#0中搜索空间search space#0的参数信息。
  2. 如权利要求1所述的方法，其中，所述第一关联关系为所述CSI-RS和所述目标SSB是准共址QCL的。
  3. 如权利要求1所述的方法，其中，确定与所述CSI-RS存在关联关系的目标SSB，包括：
    确定所述CSI-RS的TCI state；
    根据所述CSI-RS的TCI state，确定所述目标SSB。
  4. 如权利要求3所述的方法，其中，根据所述CSI-RS的TCI state，确定所述目标SSB，包括：
    若所述CSI-RS的TCI state指示的Source RS为第一SSB，则将所述第一SSB确定为所述目标SSB。
  5. 如权利要求3所述的方法，其中，根据所述CSI-RS的TCI state，确定所述目标SSB，包括：
    若所述CSI-RS的TCI state指示的Source RS为目标参考信号RS，则确定与所述目标RS存在第二关联关系的第二SSB，其中，所述目标RS为SSB以外的其他RS；
    将所述第二SSB确定为所述目标SSB。
  6. 如权利要求5所述的方法，其中，所述第二关联关系为所述目标RS和所述第二SSB是QCL的。
  7. 如权利要求1所述的方法，其中，所述search space#0的参数信息用于指示监听物理下行控制信道Type0-PDCCH的公共搜索空间common search  space。
  8. 如权利要求1或7所述的方法，其中，所述search space#0的参数信息包括下述至少一种：
    时频资源信息、空间接收参数信息。
  9. 如权利要求1所述的方法，其中，所述专用信令包括下述至少一种：
    无线资源控制RRC信令、媒体接入控制层控制单元MAC CE信令。
  10. 一种终端设备，包括：
    接收模块，用于接收专用信令，其中，所述专用信令用于为所述终端设备配置CORESET#0的TCI state，所述CORESET#0的TCI state指示的Source RS为CSI-RS；
    第一确定模块，用于确定与所述CSI-RS存在第一关联关系的目标SSB；
    第二确定模块，用于根据所述目标SSB，确定所述CORESET#0中search space#0的参数信息。
  11. 一种终端设备，包括：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计算机程序，所述计算机程序被所述处理器执行时实现如权利要求1至9中任一项所述的搜索空间参数确定方法的步骤。
  12. 一种计算机可读存储介质，其中，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1至9中任一项所述的搜索空间参数确定方法的步骤。
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