WO2024012595A1 - 物理下行控制信道检测方法、装置及通信设备 - Google Patents
物理下行控制信道检测方法、装置及通信设备 Download PDFInfo
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- 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
- H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
- H04L1/0038—Blind format detection
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- 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
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- 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
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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
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
Definitions
- the present disclosure relates to the field of communication technology, and in particular, to a physical downlink control channel detection method, device and communication equipment.
- a downlink scheduling signaling (Downlink Control Information, DCI) is supported to schedule physical shared channels of multiple cells.
- the physical shared channel includes a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) and a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH).
- PDSCH Physical Downlink Shared Channel
- PUSCH Physical Uplink Shared Channel
- PDCCH Physical Downlink Control Channel
- the purpose of this disclosure is to provide a physical downlink control channel detection method, device and communication equipment to solve the problem of how to perform PDCCH detection when the DCI configured for the terminal is used to schedule data of multiple cells.
- the present disclosure provides a physical downlink control channel detection method, including:
- the terminal determines at least one first cell that performs physical downlink control channel PDCCH detection, the PDCCH detection is used to detect first downlink control information DCI, and the first DCI is used to schedule transmission data of multiple cells;
- the terminal performs PDCCH detection according to the at least one first cell.
- the method of the embodiment of the present disclosure further includes:
- the first indication information is used to indicate cell information for performing PDCCH detection
- the terminal determines at least one first cell for physical downlink control channel PDCCH detection, including:
- At least one first cell for performing PDCCH detection is determined.
- the first indication information includes search space parameters of the cell.
- determining at least one first cell to perform PDCCH detection according to the first indication information includes:
- the cell corresponding to the search space parameter is determined as the first cell.
- the method of the embodiment of the present disclosure further includes:
- the candidate PDCCH information includes a control channel unit CCE aggregation level and the number of candidate PDCCHs corresponding to the CCE aggregation level;
- the terminal performs PDCCH detection based on the at least one first cell, including:
- PDCCH detection is performed according to the PDCCH detection timing and candidate PDCCH information corresponding to each first cell.
- determining the PDCCH detection timing and candidate PDCCH information corresponding to each first cell includes:
- the first cell is a scheduled cell
- the PDCCH detection timing and candidate PDCCH information corresponding to the scheduled cell are determined according to the search space parameters of the scheduling cell and the search space parameters of the scheduled cell.
- determining the PDCCH detection timing corresponding to each first cell includes:
- the first selection method includes: selecting a cell with the largest or smallest cell index value, selecting a scheduling cell, and one or more of a preset selection sequence.
- different first cells correspond to different CCE aggregation levels.
- determining candidate PDCCH information corresponding to each first cell includes:
- the second indication information includes: candidate PDCCH identifiers corresponding to the at least two first cells, or identifiers of CCEs occupied by the candidate PDCCHs respectively corresponding to the at least two first cells.
- the candidate PDCCH identifiers corresponding to different first cells are different, and the offset information of the CCE index corresponding to each first cell is the same, and the offset information is used to determine the The reference position of the candidate PDCCH.
- the identifiers of CCEs occupied by candidate PDCCHs corresponding to different first cells are different, and the CCEs occupied by the candidate PDCCHs corresponding to each first cell are located in the first ranking result.
- the CCE occupied by the candidate PDCCH corresponding to the previous first cell before the first cell is determined, and the first sorting result is obtained by sorting the at least two first cells in a preset order.
- Embodiments of the present disclosure also provide a physical downlink control channel detection method, including:
- the network side device sends first indication information, the first indication information is used to indicate cell information for performing PDCCH detection, the PDCCH detection is used to detect the first downlink control information DCI, and the first DCI is used to schedule multiple Cell transmission data.
- the first indication information includes search space parameters of the cell.
- the first indication information is used to indicate the search space parameter.
- the cell corresponding to the search space parameter is the cell that performs PDCCH detection.
- the search space parameters include CCE aggregation levels, and CCEs corresponding to different first cells have different aggregation levels, and the first cell is a cell that performs PDCCH detection.
- the search space parameters include CCE aggregation level
- the method further includes:
- the second indication information includes candidate PDCCH identifiers corresponding to the at least two first cells, or includes identifiers of CCEs occupied by the candidate PDCCHs respectively corresponding to the at least two first cells.
- the candidate PDCCH identifiers corresponding to different first cells are different, and the offset information of the CCE index corresponding to each first cell is the same, and the offset information is used to determine the The reference position of the candidate PDCCH.
- the identifiers of CCEs occupied by candidate PDCCHs corresponding to different first cells are different, and the CCEs occupied by the candidate PDCCHs corresponding to each first cell are located in the first ranking result.
- the CCE occupied by the candidate PDCCH corresponding to the previous first cell before the first cell is determined, and the first sorting result is obtained by sorting the at least two first cells in a preset order.
- Embodiments of the present disclosure also provide a physical downlink control channel detection device, which is applied to a terminal and includes a memory, a transceiver, and a processor;
- Memory used to store computer programs
- transceiver used to send and receive data under the control of the processor
- processor used to read the computer program in the memory and perform the following operations:
- the PDCCH detection is used to detect first downlink control information DCI, and the first DCI is used to schedule transmission data of multiple cells;
- PDCCH detection is performed according to the at least one first cell.
- the first indication information is used to indicate cell information for performing PDCCH detection
- At least one first cell for performing PDCCH detection is determined.
- the first indication information includes search space parameters of the cell.
- the cell corresponding to the search space parameter is determined as the first cell.
- the candidate PDCCH information includes a control channel unit CCE aggregation level and the number of candidate PDCCHs corresponding to the CCE aggregation level;
- PDCCH detection is performed according to the PDCCH detection timing and candidate PDCCH information corresponding to each first cell.
- the first cell is a scheduled cell
- the PDCCH detection timing and candidate PDCCH information corresponding to the scheduled cell are determined according to the search space parameters of the scheduling cell and the search space parameters of the scheduled cell.
- the first selection method includes: selecting a cell with the largest or smallest cell index value, selecting a scheduling cell, and one or more of a preset selection sequence.
- different first cells correspond to different CCE aggregation levels.
- the second indication information includes: candidate PDCCH identifiers corresponding to the at least two first cells, or identifiers of CCEs occupied by the candidate PDCCHs respectively corresponding to the at least two first cells.
- Embodiments of the present disclosure also provide a physical downlink control channel detection device, which is applied to network side equipment, including a memory, a transceiver, and a processor;
- Memory used to store computer programs
- transceiver used to send and receive data under the control of the processor
- processor used to read the computer program in the memory and perform the following operations:
- the first indication information is sent through the transceiver.
- the first indication information is used to indicate the cell information for performing PDCCH detection.
- the PDCCH detection is used to detect the first downlink control information DCI.
- the first DCI is used to schedule multiple Cell transmission data.
- Embodiments of the present disclosure also provide a physical downlink control channel detection device, which is applied to terminals and includes:
- a first determining unit configured to determine at least one first cell that performs physical downlink control channel PDCCH detection.
- the PDCCH detection is used to detect first downlink control information DCI.
- the first DCI is used to schedule transmission of multiple cells. data;
- the first detection unit is configured to perform PDCCH detection according to the at least one first cell.
- Embodiments of the present disclosure also provide a physical downlink control channel detection device, which is applied to network side equipment, including:
- the first sending unit is configured to send first indication information.
- the first indication information is used to indicate cell information for performing PDCCH detection.
- the PDCCH detection is used to detect first downlink control information DCI.
- the first DCI is used For scheduling transmission data of multiple cells.
- Embodiments of the present disclosure also provide a processor-readable storage medium that stores program instructions, and the program instructions are used to cause the processor to perform the physical downlink control channel detection as described above. Method steps.
- the terminal determines at least one first cell that performs physical downlink control channel PDCCH detection.
- the PDCCH detection is used to detect the first downlink control information DCI.
- the first DCI is used to schedule transmission of multiple cells.
- the terminal performs PDCCH detection based on the plurality of first cells, thereby achieving the purpose of performing PDCCH detection when the terminal is configured to use DCI for scheduling transmission data of multiple cells.
- Figure 1 shows a structural diagram of a network system to which embodiments of the present disclosure are applicable
- Figure 2 shows a schematic diagram of two scheduling methods of single-cell scheduling
- Figure 3 shows a schematic diagram of multi-cell scheduling
- Figure 4 shows one of the flow diagrams of the physical downlink control channel detection method according to the embodiment of the present disclosure
- Figure 5 shows a schematic diagram of different cells performing PDCCH blind detection on different time slots in an embodiment of the present disclosure
- Figure 6 shows a schematic diagram of explicit indication detection timing in an embodiment of the present disclosure
- Figure 7 shows one of the schematic diagrams of candidate PDCCHs corresponding to different cells in the embodiment of the present disclosure
- Figure 8 shows the second schematic diagram of candidate PDCCHs corresponding to different cells in the embodiment of the present disclosure
- Figure 9 shows the third schematic diagram of candidate PDCCHs corresponding to different cells in the embodiment of the present disclosure.
- Figure 10 shows the fourth schematic diagram of candidate PDCCHs corresponding to different cells in the embodiment of the present disclosure
- Figure 11 shows the second schematic flow chart of the physical downlink control channel detection method according to the embodiment of the present disclosure
- Figure 12 shows one of the structural block diagrams of the physical downlink control channel detection device according to the embodiment of the present disclosure
- Figure 13 shows the second structural block diagram of the physical downlink control channel detection device according to the embodiment of the present disclosure
- Figure 14 shows one of the module schematic diagrams of the physical downlink control channel detection device according to the embodiment of the present disclosure
- Figure 15 shows a schematic module diagram of a physical downlink control channel detection device according to an embodiment of the present disclosure. two.
- GSM Global System of Mobile communication
- CDMA Code Division Multiple Access
- WCDMA Wideband Code Division Multiple Access
- TD-SCDMA Time Division Synchronous Code Division Multiple Access
- GPRS general packet radio service
- LTE Long Term Evolution
- LTE-LTE Frequency Division Duplexing-LTE
- LTE-A Long Term Evolution Advanced
- UMTS Universal Mobile Telecommunication System
- WiMAX Worldwide Interoperability For Microwave Access
- 5th Generation, 5G) New Radio (NR) system etc.
- the system may also include core network parts, such as the evolved packet system (Evolved Packet System, EPS), 5G system (5G System, 5GS), and 5G core network (5G Core Network, 5GC).
- Evolved Packet System Evolved Packet System
- 5G System 5G System
- 5G Core Network 5G Core Network
- FIG. 1 shows a block diagram of a wireless communication system to which embodiments of the present disclosure are applicable.
- the wireless communication system includes a terminal 11, a network side device 12, a relay system or a Reconfigurable Intelligence Surface (RIS) system.
- the terminal 11 can also be called a terminal device or a user terminal (User Equipment, UE).
- the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), or a notebook computer or a personal digital computer.
- the network side device 12 may be a base station or a core network, Among them, the base station may be called a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service Set (Extended Service Set, ESS), B node, evolved B node (eNB), home B node, home evolved B node, wireless local area network (Wireless Local Area Network, WLAN) access point, WiFi node, sending and receiving point (Transmitting Receiving Point, TRP) or some other appropriate terminology in the field.
- the base station is not limited to specific technical terms. It should be noted that in the embodiment of the present disclosure, only the NR system is used. The base station in is taken as an example, but the specific type of base station is not limited.
- the scheduling data can be the physical downlink shared channel (PDSCH) or the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH). ).
- PDSCH physical downlink shared channel
- PUSCH Physical Uplink Shared Channel
- Cross-carrier scheduling DCI and scheduled data are not on the same carrier.
- DCI-1 and scheduled PDSCH-1 are both in CELL-1 (cell 1), and PDSCH-1 is self-scheduled by CELL-1.
- the scheduling cell the cell that transmits DCI
- the scheduled cell the cell that transmits data
- DCI-2 and scheduled PDSCH-2 are distributed in different cells, and PDSCH-2 is scheduled across carriers.
- the scheduling cell (the cell that transmits DCI) is CELL-1
- the scheduled cell (the cell that transmits data) is CELL-2.
- DCI-3 and scheduled PDSCH-3 are both in CELL-3 (cell 3), and PDSCH-3 is self-scheduled by CELL-3.
- the scheduling cell the cell that transmits DCI
- the scheduled cell the cell that transmits data
- one DCI is supported to schedule data on multiple cells. That is, the scheduling signaling DCI is sent on one cell, and the data scheduled by it may be sent on multiple cells. As shown in Figure 3, scheduling signaling DCI is sent on CELL-1 (cell 1), and this signaling schedules PDSCH on three cells.
- CELL-1 is both the scheduling cell (the cell that sends DCI) and the scheduled cell (the cell that transmits data);
- CELL-2 and CELL-3 are the scheduled cells (the cell that transmits data);
- the above-mentioned DCI scheduling signaling is carried on the PDCCH.
- the terminal In order to receive DCI, the terminal needs to detect multiple PDCCH candidate channels. Because the terminal does not know whether the base station has sent DCI, the terminal needs to detect all candidate PDCCHs. , this process is called PDCCH blind detection.
- PDCCH is used to send downlink control information (DCI).
- DCI downlink control information
- the information it transmits includes public control information (system information, paging information, etc.) and user-specific control information (downlink resource allocation instructions, uplink resource scheduling, triggering PRACH, Uplink power control parameters, etc.).
- CORESET represents the size of the PDCCH channel resource block.
- a CORESET is composed of several control channel elements (Control-Channel Element, CCE), and each CCE is composed of 6 resource blocks (Resource Block, RB).
- CCE Control-Channel Element
- RB Resource Block
- a CORESET has a maximum of 96 physical resource blocks (PRBs) in the frequency domain and a maximum of 3 symbols in the time domain. That is, CORESET consists of up to 48 CCEs.
- PRBs physical resource blocks
- a CORESET multiple candidate PDCCHs (candidate PDCCH) are included.
- the control channels of these candidates require UE to monitor (monitor).
- any one or more CCEs can form a candidate PDCCH.
- the standard currently stipulates that a PDCCH composed of 1 CCE is called a candidate PDCCH with CCE aggregation level 1.
- a PDCCH composed of 2 CCEs is called a candidate PDCCH with CCE aggregation level 2.
- a PDCCH composed of 4 CCEs is called CCE.
- Candidate PDCCH with aggregation level 4 is called CCE.
- the current standard protocol stipulates that the CCE aggregation levels supported are: 1, 2, 4, 8, and 16.
- the search space defines the time range in which the UE needs to perform PDCCH detection (note that the wide frequency domain and long time range have been defined in CORESET).
- the search space is divided into a public search space and a UE-specific search space.
- the common search space refers to the search space of all UEs or a group that needs to perform PDCCH detection, denoted as CSS (common search space).
- the UE-specific search space is a search space specially configured by the base station for a certain UE, and the configured UE needs to perform PDCCH detection, recorded as USS ((UE specific search space).
- Configuring the USS search space mainly includes the following parameters:
- the maximum T in the standard is 20480.
- This parameter indicates the position of the first symbol of the PDCCH detection opportunity in a specific time slot.
- This parameter indicates the candidate PDCCH information when the terminal performs PDCCH blind detection.
- Configuration includes two pieces of information:
- Aggregation level (L) that is, the number of CCEs included in the candidate PDCCH
- the number of candidate PDCCHs at the corresponding aggregation level is the number of candidate PDCCHs at the corresponding aggregation level.
- monitoringSymbolsWithinSlot 1000000 1000000 (PDCCH detection opportunity is located in the first symbol and the 7th symbol among the 14 symbols);
- an embodiment of the present disclosure provides a physical downlink control channel detection method, including:
- Step 401 The terminal determines at least one first cell that performs physical downlink control channel PDCCH detection.
- the PDCCH detection is used to detect first downlink control information DCI.
- the first DCI is used to schedule transmission data of multiple cells.
- the terminal may explicitly or implicitly determine at least one first cell that performs PDCCH detection.
- the first cell is determined according to the first indication information sent by the network side device, or the first cell is determined according to the protocol.
- the above-mentioned first cell may be a scheduling cell or a scheduled cell.
- the scheduling cell in the embodiment of the present disclosure refers to the cell that transmits the above-mentioned first DCI
- the above-mentioned scheduled cell refers to the cell that transmits the data scheduled by the first DCI.
- the PDCCH detection in the embodiment of the present disclosure can also be described as PDCCH blind detection.
- Step 402 The terminal performs PDCCH detection according to the at least one first cell.
- the terminal performs PDCCH blind detection based on the PDCCH detection module corresponding to each first cell.
- the above-mentioned first cell performing PDCCH detection means counting the above-mentioned PDCCH detection workload or detection task to the cell, that is, the relevant PDCCH blind detection work is undertaken by the corresponding PDCCH detection module of the cell.
- the terminal determines that the PDCCH detection amount is only calculated to the scheduled cell, it will use the PDCCH detection module corresponding to the scheduling cell to perform PDCCH blind detection. For another example, if the terminal determines that the PDCCH detection amount is only calculated to one scheduled cell, it will use the corresponding PDCCH detection module of the scheduled cell.
- the PDCCH detection module performs PDCCH blind detection. For another example, if the terminal determines that the PDCCH detection amount is calculated in multiple cells (including at least one of the scheduling cell and the scheduled cell), the terminal uses the PDCCH detection module corresponding to each cell to perform PDCCH blind detection.
- the PDCCH detection amount (or PDCCH blind detection amount) in the embodiment of the present disclosure refers to a certain number of candidate PDCCH detections.
- CCEs corresponding to a certain number of candidate PDCCHs do not overlap (overlap).
- PDCCH detection in the embodiments of the present disclosure refers to control channel detection for multi-cell data scheduling, including: detection of downlink physical shared data channels, or/and detection of uplink physical shared channels.
- the terminal determines at least one that performs physical downlink control channel PDCCH detection.
- a first cell the PDCCH detection is used to detect the first downlink control information DCI, the first DCI is used to schedule transmission data of multiple cells, and the terminal performs PDCCH detection based on the multiple first cells, thereby achieving
- the purpose of PDCCH detection is performed when the terminal is configured with DCI that schedules transmission data of multiple cells.
- the method of the embodiment of the present disclosure further includes:
- the first indication information is used to indicate cell information for performing PDCCH detection
- the terminal determines at least one first cell for physical downlink control channel PDCCH detection, including:
- At least one first cell for performing PDCCH detection is determined.
- At least one first cell that performs physical downlink control channel PDCCH detection may be indicated explicitly or implicitly through the first indication information.
- the identity of at least one cell is explicitly indicated by the first indication information, or the first indication information implicitly indicates the above-mentioned first cell by indicating search space parameters.
- the above-mentioned first indication information may be sent through high-layer signaling.
- the first indication information includes search space parameters of the cell.
- the search space parameters corresponding to different cells can be configured independently, thereby achieving the effects of different parameters corresponding to different cells.
- the search space parameters are specifically search space parameters for multi-cell scheduling.
- the above search space parameters include: at least one of monitoring slot period and offset (monitoringSlotPeriodicityAndOffset), monitoringSymbolsWithinSlo and nrofCandidates.
- the above-mentioned first cell may be implicitly indicated by whether to configure a search space parameter for multi-cell scheduling.
- determining at least one first cell to perform PDCCH detection according to the first indication information includes:
- the cell corresponding to the search space parameter is determined as the first cell.
- the candidate PDCCHs of at least one aggregation level included in the search space parameters The number is greater than 0, and the search space parameter is the search space parameter corresponding to the scheduling cell, then it is determined that the scheduling cell is the first cell;
- the search space parameter is a search space parameter corresponding to a scheduled cell, then it is determined that the scheduled cell is the first Community;
- the search space parameter is a search space parameter corresponding to at least one cell
- the at least one cell is determined to be the first cell.
- the method of the embodiment of the present disclosure further includes:
- the candidate PDCCH information includes a control channel unit CCE aggregation level and the number of candidate PDCCHs corresponding to the CCE aggregation level;
- the terminal performs PDCCH detection based on the at least one first cell, including:
- PDCCH detection is performed according to the PDCCH detection timing and candidate PDCCH information corresponding to each first cell.
- Determining the PDCCH detection timing and candidate PDCCH information corresponding to each first cell includes:
- the first cell is a scheduled cell
- the PDCCH detection timing and candidate PDCCH information corresponding to the scheduled cell are determined according to the search space parameters of the scheduling cell and the search space parameters of the scheduled cell.
- the search space for multi-cell scheduling is configured only on the scheduling cell, and the candidate PDCCH parameter nrofCandidates>0, it is considered that the PDCCH blind detection of the multi-cell scheduling DCI is only calculated to the scheduling cell.
- the terminal determines the search space parameters of the scheduling cell (such as CORESET number, PDCCH blind detection nrofCandidates, detection period/offset monitoringSlotPeriodicityAndOffset, monitoringSymbolsWithinSlot, etc.) to calculate the PDCCH detection timing and candidate PDCCH information of the scheduled cell.
- the search space parameters of the scheduling cell such as CORESET number, PDCCH blind detection nrofCandidates, detection period/offset monitoringSlotPeriodicityAndOffset, monitoringSymbolsWithinSlot, etc.
- the candidate PDCCH parameter nrofCandidates if only one scheduled cell is configured with a search space for multi-cell scheduling, and the candidate PDCCH parameter nrofCandidates>0, it is considered that the PDCCH blind detection of multi-cell scheduling DCI is only calculated for the scheduled cell, And based on the search space parameters configured in the scheduling cell and the scheduled cell (such as PDCCH blind detection nrofCandidates, or/and the detection period/offset monitoringSlotPeriodicityAndOffset, or/and the detection symbol position monitoringSymbolsWithinSlot in the time slot), determine the multi-cell scheduling DCI PDCCH detection timing and candidate PDCCH information.
- the search space parameters configured in the scheduling cell and the scheduled cell such as PDCCH blind detection nrofCandidates, or/and the detection period/offset monitoringSlotPeriodicityAndOffset, or/and the detection symbol position monitoringSymbolsWithinSlot in the time slot
- the nrofCandidates value of the multi-cell scheduled search space of a scheduled cell is greater than 0, it is implicitly indicated that the PDCCH blind detection is calculated to the scheduled cell, otherwise it indicates that the PDCCH blind detection is not calculated to the scheduled cell.
- the candidate PDCCH parameter nrofCandidates>0 it is considered that the PDCCH blind detection of multi-cell scheduling DCI is calculated to multiple cells; and according to the scheduling The search space parameters configured for the cell and the scheduled cell determine the PDCCH detection timing and candidate PDCCH information for multi-cell scheduling DCI.
- the first cell is implicitly indicated by the nrofCandidates value of the search space searchspace configured for multi-cell scheduling;
- the nrofCandidates value of the search space of multi-cell scheduling it implicitly indicates whether the PDCCH blind detection corresponding to the multi-cell scheduling DCI is allocated to the configuration cell.
- the configuration cell can be at least one of the scheduling cell and the scheduled cell. item.
- the terminal considers that multi-cell scheduled PDCCH blind detection is not calculated to the configured cell, otherwise it means that PDCCH blind detection is calculated to the configured cell.
- Example 1 base station side: For cell CELL-1, the nrofCandidates value of the configured search space for multi-cell scheduling is as follows:
- aggregationLevel1 n0 //Selection range ⁇ n0,n1,n2,n3,n4,n5,n6,n8 ⁇ ,
- aggregationLevel2 n0 //Selection range ⁇ n0,n1,n2,n3,n4,n5,n6,n8 ⁇ ,
- aggregationLevel4 n0 //Selection range ⁇ n0,n1,n2,n3,n4,n5,n6,n8 ⁇ ,
- aggregationLevel8 n0 //Selection range ⁇ n0,n1,n2,n3,n4,n5,n6,n8 ⁇ ,
- aggregationLevel16 n0 //Select range ⁇ n0,n1,n2,n3,n4,n5,n6,n8 ⁇ ,
- formats0-X indicates scheduling uplink data
- formats1-X represents the multi-cell scheduling DCI format for scheduling downlink data
- the search space is considered to be a search space for multi-cell scheduling (the same below).
- CELL-1 can be a scheduling cell or a scheduled cell.
- Terminal side Since the number of PDCCH candidates at all aggregation levels is 0, the terminal believes that the PDCCH blind detection corresponding to the search space of multi-cell scheduling is not allocated to CELL-1 or is not calculated on CELL-1. At the same time, the multi-cell scheduling DCI format associated with the search space is not detected, and the scheduling information length of the DCI format is not calculated in the cell.
- Example 2 On the base station side, for CELL-2, the nrofCandidates value of the configured search space for multi-cell scheduling is as follows:
- aggregationLevel1 n0 //Select range ⁇ n0,n1,n2,n3,n4,n5,n6,n8 ⁇ ,
- aggregationLevel2 n0 //Select range ⁇ n0,n1,n2,n3,n4,n5,n6,n8 ⁇ ,
- aggregationLevel4 n0 //Selection range ⁇ n0,n1,n2,n3,n4,n5,n6,n8 ⁇ ,
- aggregationLevel8 n4 //Selection range ⁇ n0,n1,n2,n3,n4,n5,n6,n8 ⁇ ,
- aggregationLevel16 n8 //Selection range ⁇ n0,n1,n2,n3,n4,n5,n6,n8 ⁇ ,dci-Formats-R18 ENUMERATED ⁇ formats0-X-And-1-X,formats0-X-And-1- X ⁇ // represents the configuration of the relevant search space, which is related to multi-cell scheduling.
- formats0-X represents the multi-cell scheduling DCI format for scheduling uplink data
- formats1-X represents the multi-cell scheduling DCI format for scheduling downlink data.
- CELL-2 can be a scheduling cell or a scheduled cell.
- the terminal does not expect that the number of candidate PDCCHs corresponding to all aggregation levels of all cells participating in the scheduling is 0, that is, the terminal hopes to have at least one cell configured with at least one aggregation level corresponding to The number of candidate PDCCHs is greater than 0.
- the UE determines the cell to which the PDCCH detection amount is allocated by judging the number of all candidate PDCCHs at all configured aggregation levels. Without increasing the complexity of the relevant protocols, it is possible to indicate the allocation of candidate PDCCH blind detection work for multi-cell scheduling signaling, which can be allocated to the scheduling cell, the scheduled cell, or to multiple cells.
- different first cells have different detection offsets.
- the detection offset can be indicated by the detection slot period and offset in the above-mentioned search space parameters.
- the detection offset is used to indicate offset information for the terminal to perform PDCCH detection in one cycle.
- determining the PDCCH detection timing corresponding to each first cell includes:
- the first selection method includes: selecting a cell with the largest or smallest cell index value, selecting a scheduling cell, and one or more of a preset selection sequence.
- the detection offsets corresponding to different first cells are the same, then it is determined based on the detection offsets and candidate PDCCH information that the PDCCH detection opportunities of at least two first cells overlap, According to the first selection method, a first cell is selected from the at least two cells.
- the base station calculates PDCCH blind detection on multiple scheduling cells in a time-division manner; that is, different scheduling cells detect PDCCH
- the time is different (that is, the detection timing is different), for example, PDCCH detection is performed on different time slots, or on different symbols in the same time slot.
- Example 1 Participating in multi-carrier scheduling are CELL-1, CELL-2, CELL-3, and CELL-4.
- the "detection period/offset monitoringSlotPeriodicityAndOffset value of the search space searchspace configured for multi-cell scheduling is as follows:
- Configuration parameters of CELL-1 (scheduling cell/scheduled cell);
- monitoringSymbolsWithinSlot 1000000 0000000//The detection timing is on the first symbol of the timeslot
- formats0-X indicates scheduling uplink data
- formats1-X represents the multi-cell scheduling DCI format for scheduling downlink data ⁇ .
- formats0-X indicates scheduling uplink data
- formats1-X represents the multi-cell scheduling DCI format for scheduling downlink data ⁇ .
- formats0-X indicates scheduling uplink data
- formats1-X represents the multi-cell scheduling DCI format for scheduling downlink data ⁇ .
- formats0-X indicates scheduling uplink data
- formats1-X represents the multi-cell scheduling DCI format for scheduling downlink data ⁇ .
- the terminal On the scheduled cell, if the configured search space is multi-cell scheduling, the terminal believes that the configured detection period/offset monitoringSlotPeriodicityAndOffset is valid, and it uses this parameter and nrofCandidates, combined with "Scheduling cell configuration multi-cell scheduling related search" "Other parameters of the space" determines the PDCCH detection timing and detection amount of the cell; that is, using the "detection period/offset monitoringSlotPeriodicityAndOffset and nrofCandidates" configured in the scheduled cell to replace these two parameters in the "search space configured in the scheduled cell", Determine the PDCCH detection timing and detection amount of the scheduled cell.
- the period values configured in different cells are the same and the offsets are different, that is, the detection timing of different cells is guaranteed to be in different time units (such as : different time slots).
- the first selection method includes:
- the scheduling cell and the scheduled cell have the same configured period value, but the offset value is different.
- the scheduled cell uses the monitoringSymbolsWithinSlot of the scheduling cell; each The cell uses the offset value configured in its own cell. In this way, the goal of blind detection of PDCCH in different scheduled cells in different time slots can be achieved.
- the above-mentioned second specific embodiment can also be implemented by the following method:
- the base station configures a search space for multi-cell scheduling, it also instructs the corresponding detection opportunities to be counted on the scheduling cells "specified by the base station" (that is, explicitly indicating the detection opportunities); one implementation method is to follow the effective MO (or According to a certain time period), polling is allocated to each scheduling cell; Assume: the configured MO cycle is 1 time slot, there is 1 MO in each time slot, and the cells participating in multi-cell scheduling are CELL-1, CELL -2, CELL-3, as shown in Figure 6.
- participating in multi-carrier scheduling are CELL-1, CELL-2, CELL-3, and CELL-4.
- the "detection period/offset monitoringSymbolsWithinSlot" value of the search space of the configured multi-cell scheduling is as follows:
- monitoringSymbolsWithinSlot 1000000 0000000//The detection timing is on the first symbol of the time slot;
- formats0-X indicates the multi-cell scheduling DCI format for scheduling uplink data.
- formats1-X indicates the multi-cell scheduling for downlink data.
- formats0-X indicates scheduling uplink data
- formats1-X represents the multi-cell scheduling DCI format for scheduling downlink data
- formats0-X indicates scheduling uplink data
- formats1-X represents the multi-cell scheduling DCI format for scheduling downlink data
- formats0-X indicates scheduling uplink data
- formats1-X represents the multi-cell scheduling DCI format for scheduling downlink data
- the terminal On the scheduled cell, if the configured search space is scheduled for multiple cells, the terminal considers that the configured monitoringSymbolsWithinSlot is valid, and it uses this parameter and nrofCandidates, combined with "other parameters of the search space related to the scheduling cell configuration for multi-cell scheduling" to determine of this neighborhood PDCCH detection timing and detection amount; that is, using the "monitoringSymbolsWithinSlot and nrofCandidates” configured in the scheduled cell to replace the two parameters in the "Scheduling-related search space configured in the scheduling cell” to determine the PDCCH detection timing and detection amount of the scheduled cell.
- the scheduled cell configuration uses the configured cycle number and offset value of the scheduling cell, and the monitoringSymbolsWithinSlot configured in the local cell of the scheduled cell; when each cell configures the position of the detection opportunity in the time slot
- different scheduled cells can perform blind detection of PDCCH in different time slots, which can avoid repeated detection of different scheduled cells and reduce the power consumption of terminals for PDCCH detection.
- the PDCCH starting positions configured by different UEs are different, that is, the detection timing of different cells is guaranteed to be in different time units (such as CORESET's number of symbols).
- the configuration of the search space parameters causes overlap between different cells in the same time unit (such as the number of CORESET symbols), then select one of the cells to perform blind detection of the PDCCH.
- the selection criteria can be: The cell index value is the smallest (or largest). Scheduling area. Or calculate it on different cells in a certain order.
- the above implementation method does not need to modify the relevant protocol framework, nor does it need to add configuration information. It only defines parameters that are not defined in the original protocol or are considered invalid by the terminal (monitoringSlotPeriodicityAndOffset or/and monitoringSymbolsWithinSlot), and are considered valid. It can be implemented. Work allocation for blind testing of candidate PDCCHs.
- different first cells correspond to different CCE aggregation levels.
- the candidate PDCCH detection amounts are allocated to different cells at different aggregation levels L.
- the PDCCH blind detection is calculated on multiple scheduled cells in one time slot; that is, the candidate PDCCH detected by different scheduled cells is different. For example: for a scheduled multiple cells DCI of the cell, assuming that a total of 11 candidate PDCCHs need to be detected, There are a total of 4 scheduled cells, and each cell is allocated a corresponding number of candidate PDCCHs for blind detection;
- This embodiment allocates candidate PDCCHs to different scheduled cells in the dimensions of different aggregation levels L.
- the base station configures the corresponding number of candidate PDCCHs and aggregation level;
- the aggregation levels of the corresponding candidate PDCCHs are 2, 4, 8, and 16, and the number of candidate PDCCHs corresponding to each aggregation level are 4, 4, 2, and 1 respectively (of course, the configuration can The same or different, there are no restrictions here); CELL-1 is the scheduling cell and the scheduled cell; CELL-2/3/4 is the scheduled cell. Different cell configurations correspond to different aggregation levels (each cell can contain 0, 1 or more, without limitation); in this way, different cells assume the role of corresponding candidate PDCCH detection.
- Participating in multi-carrier scheduling are CELL-1, CELL-2, CELL-3, and CELL-4.
- the "aggregation level" value of the search space of the configured multi-cell scheduling is as follows:
- the terminal does not expect to configure the aggregation level of candidate PDCCH in different cells when the base station configures it.
- the aggregation level values of have overlap, at least we don’t want the aggregation levels to be exactly the same.
- the terminal On the scheduled cell, if the configured search space is multi-cell scheduling, the terminal considers that the parameter nrofCandidates is valid, and determines the PDCCH detection timing and detection of the cell in combination with "the scheduling cell configures other parameters of the search space related to multi-cell scheduling" Quantity; that is, using the parameters in "nrofCandidatest configured in the scheduled cell and "Scheduling-related search space configured in the scheduling cell", determine the PDCCH detection timing and detection amount of the scheduled cell.
- the aggregation level values configured by different UEs are different, that is, it is guaranteed that the detection candidate PDCCHs of different cells are different.
- determining candidate PDCCH information corresponding to each first cell includes:
- the second indication information includes: candidate PDCCH identifiers corresponding to the at least two first cells, or identifiers of CCEs occupied by the candidate PDCCHs respectively corresponding to the at least two first cells.
- candidate PDCCH identifiers corresponding to different first cells are different, or the identifiers of CCEs occupied by candidate PDCCHs corresponding to different first cells are different.
- different candidate PDCCH identifiers corresponding to different first cells means that all PDCCH identifiers corresponding to different first cells are different or part of the PDCCH identifiers are different.
- different first cells correspond to The candidate PDCCH identifiers are different, and the offset information of the CCE index corresponding to each of the first cells is the same, and the offset information is used to determine the reference position of the candidate PDCCH.
- the identifiers of CCEs occupied by candidate PDCCHs corresponding to different first cells are different, and the CCEs occupied by the candidate PDCCHs corresponding to each first cell are based on the first
- the CCE occupied by the candidate PDCCH corresponding to the previous first cell located before the first cell is determined.
- the first sorting result is obtained by sorting the at least two first cells in a preset order. .
- the above first sorting result is obtained by sorting at least two first cells in the order in which the cell numbers arrive from the smallest. Then for a certain cell, the identity of the CCE occupied by the corresponding candidate PDCCH is based on the identity of the previous cell. The last CCE index occupied by the last candidate PDCCH is determined.
- PDCCH Physical Downlink Control Channel
- a DCI that schedules multiple cells it is assumed that a total of 16 candidates need to be detected.
- PDCCH there are a total of 4 scheduled cells, then each cell is allocated 4 candidate PDCCHs for blind detection; considering that the DCI scheduled by multi-cells contains more information, a higher CCE aggregation level is required (candidate PDCCHs contain more wireless resources) to ensure reception performance. For example, only aggregation level 4/8/16 meets the requirements.
- 4 cells participate in PDCCH blind detection at least two cells use the same aggregation level L.
- the following explains how to calculate the CCE corresponding to the candidate PDCCH of different cells when the aggregation level L configured in two cells is the same. Specifically, it includes the following two methods:
- the candidate PDCCHs configured by CELL-2 are PDCCH-0 and PDCCH-1;
- the candidate PDCCHs configured by CELL-3 are PDCCH-2 and PDCCH-3;
- the candidate PDCCH configured for CELL-2 is PDCCH-0, the occupied CCE numbers are 0, 1, 2, 3, and PDCCH-1; the occupied CCE numbers are 4, 5, 6, and 7.
- the candidate PDCCH configured in CELL-3 is PDCCH-2, and the occupied CCE numbers are 8, 9, 10, 11, and PDCCH-3; the occupied CCE numbers are 12, 13, 14, and 15.
- examples of adding parameters for the starting candidate PDCCH are as follows:
- starCandidates 0//The starting candidate PDCCH number of CELL-2, corresponding to PDCCH-0, PDCCH-1 ⁇ ;
- starCandidates 2//The starting candidate PDCCH number of CELL-2, corresponding to PDCCH-2, PDCCH-3 ⁇ ;
- the terminal can determine based on the starCandidates parameter or the cell index sequence:
- the PDCCH candidate numbers corresponding to CELL-2 are 0 and 1;
- the PDCCH candidate numbers corresponding to CELL-3 are 2 and 3.
- n RNTI is the UE identification number (C-RNTI) assigned to the UE.
- n CI_offset represents the carrier indication domain offset information (CCE index offset information) configured for the UE.
- CCE index offset information the carrier indication domain offset information
- Figure 9 illustrates the corresponding candidate PDCCHs and occupied CCEs of CELL-2 and CELL-3.
- Configuration 1 Configure candidate PDCCH parameters for multi-cell scheduling search spaces in different cells
- Configuration 2 Configure the corresponding number cell_cn of each cell in the cell set for multi-cell scheduling.
- the cell sets for uplink scheduling and downlink scheduling may be the same or different; correspondingly, the corresponding numbers of the cells for uplink scheduling and downlink scheduling may be the same or different.
- the base station determines the CCE occupied by each candidate PDCCH corresponding to the cell;
- n RNTI is the UE identification number (C-RNTI) assigned to the UE.
- n CI when doing cross-carrier scheduling, The carrier indication domain information configured for the UE.
- n CI is replaced by n CI_offset , which represents the carrier indication domain offset information (offset information of the CCE index).
- lastAllocatedCCEIndex is the last CCE (with the largest number) occupied by the last candidate PDCCH (the candidate PDCCH with the largest candidate PDCCH identifier) allocated by the previous cell (in order of cell-n number in the multi-cell scheduling set) in multi-cell scheduling.
- CCE) index; for the first cell (when cell-n has the smallest value), lastAllocatedCCEIndex 0.
- cell-n in this embodiment may be the serving cell ID configured by the base station, or may be the index ID used for multi-carrier scheduling configuration. There are no limitations here.
- the base station configures different search spaces (such as: SS_set1, SS_set2) for different scheduling sets; for the scheduled cells, when configuring the search space, it is necessary to add cell instructions (such as: associated with multiple cells Scheduling search space ID), indicating the associated search space configured on the scheduling cell (that is, associated with SS_set1, or SS_set2).
- search spaces such as: SS_set1, SS_set2
- a scheduling set if the search space configuration of the base station causes the same candidate PDCCH to be repeatedly detected by two or more cells, only the candidate PDCCH will be calculated into it.
- the method is as follows:
- the candidate PDCCH-x and the candidate PDCCH-y are the same (for example: using the same aggregation level, occupying the same CCE, and the detected DCI length Same), and the candidate PDCCH-y has been included in the cell n, then for the cell m, the candidate PDCCH-x is no longer detected, that is, the candidate PDCCH-x is not included in the cell m.
- the method of the embodiment of the present disclosure can flexibly configure the candidate PDCCH detection workload to one or more cells, that is, the candidate PDCCH blind detection workload for multi-cell scheduling can be configured to the scheduling cell, or the scheduled cell, or multiple scheduled cells. community to achieve the purpose of flexible configuration and flexible scheduling.
- an embodiment of the present disclosure also provides a physical downlink control channel detection method, including:
- Step 1101 The network side device sends first indication information.
- the first indication information is used to indicate the cell information for performing PDCCH detection.
- the PDCCH detection is used to detect the first downlink control information DCI.
- the first DCI is used to detect the first downlink control information DCI. Schedule transmission data for multiple cells.
- the first indication information includes search space parameters of the cell.
- the first indication information is used to indicate that the cell corresponding to the search space parameter is Cell that performs PDCCH detection.
- the search space parameters include CCE aggregation levels, and CCEs corresponding to different first cells have different aggregation levels, and the first cell is a cell that performs PDCCH detection.
- the search space parameters include CCE aggregation level
- the method further includes:
- the second indication information includes candidate PDCCH identifiers corresponding to the at least two first cells, or includes identifiers of CCEs occupied by the candidate PDCCHs respectively corresponding to the at least two first cells.
- candidate PDCCH symbols corresponding to different first cells The identifiers are different, and the offset information of the CCE index corresponding to each of the first cells is the same, and the offset information is used to determine the reference position of the candidate PDCCH.
- the identifiers of CCEs occupied by candidate PDCCHs corresponding to different first cells are different, and the CCEs occupied by the candidate PDCCHs corresponding to each first cell are located in the first ranking result.
- the CCE occupied by the candidate PDCCH corresponding to the previous first cell before the first cell is determined, and the first sorting result is obtained by sorting the at least two first cells in a preset order.
- the physical downlink control channel detection method performed by the network side device is a method corresponding to the physical downlink control channel detection method performed by the terminal, and will not be described again here.
- the network side device sends first indication information.
- the first indication information is used to indicate cell information for performing PDCCH detection.
- the PDCCH detection is used to detect the first downlink control information DCI.
- the first indication information is used to detect the first downlink control information DCI.
- DCI is used to schedule transmission data of multiple cells.
- the terminal determines at least one first cell to perform PDCCH detection based on the first indication information, and performs PDCCH detection based on the at least one first cell, thereby realizing scheduling of multiple cells when the terminal is configured.
- the purpose of performing PDCCH detection is performed.
- the embodiment of the present disclosure provides a physical downlink control channel detection device, which is applied to a terminal and includes a memory 1220, a transceiver 1200, and a processor 1210;
- Memory 1220 used to store computer programs
- transceiver 1200 used to send and receive data under the control of the processor
- processor 1210 used to read the computer program in the memory 1220 and perform the following operations:
- the PDCCH detection is used to detect first downlink control information DCI, and the first DCI is used to schedule transmission data of multiple cells;
- PDCCH detection is performed according to the at least one first cell.
- the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1210 and various circuits of the memory represented by memory 1220 are linked together.
- the bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein.
- the bus interface provides the interface.
- Transceiver 1200 may be multiple components, That is, it includes a transmitter and a receiver, and provides a unit for communicating with various other devices on a transmission medium, including wireless channels, wired channels, optical cables and other transmission media.
- the user interface 1230 can also be an interface capable of externally connecting internal and external required equipment.
- the connected equipment includes but is not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.
- the processor 1210 is responsible for managing the bus architecture and general processing, and the memory 1220 can store data used by the processor 1210 when performing operations.
- the processor 1210 can be a CPU (Central Processor), ASIC (Application Specific Integrated Circuit), FPGA (Field-Programmable Gate Array, Field Programmable Gate Array) or CPLD (Complex Programmable Logic Device) , complex programmable logic devices), the processor can also adopt a multi-core architecture.
- CPU Central Processor
- ASIC Application Specific Integrated Circuit
- FPGA Field-Programmable Gate Array, Field Programmable Gate Array
- CPLD Complex Programmable Logic Device
- complex programmable logic devices complex programmable logic devices
- the processor is configured to execute any of the methods provided by the embodiments of the present disclosure according to the obtained executable instructions by calling the computer program stored in the memory.
- the processor and memory can also be physically separated.
- the first indication information is used to indicate cell information for performing PDCCH detection
- At least one first cell for performing PDCCH detection is determined.
- the first indication information includes search space parameters of the cell.
- the cell corresponding to the search space parameter is determined as the first cell.
- the candidate PDCCH information includes a control channel unit CCE aggregation level and the CCE aggregation level. The number of corresponding candidate PDCCHs;
- PDCCH detection is performed according to the PDCCH detection timing and candidate PDCCH information corresponding to each first cell.
- the first cell is a scheduled cell
- the PDCCH detection timing and candidate PDCCH information corresponding to the scheduled cell are determined according to the search space parameters of the scheduling cell and the search space parameters of the scheduled cell.
- the first selection method includes: selecting a cell with the largest or smallest cell index value, selecting a scheduling cell, and one or more of a preset selection sequence.
- different first cells correspond to different CCE aggregation levels.
- the second indication information includes: candidate PDCCH identifiers corresponding to the at least two first cells, or identifiers of CCEs occupied by the candidate PDCCHs respectively corresponding to the at least two first cells.
- the candidate PDCCH identifiers corresponding to different first cells are different, and the offset information of the CCE index corresponding to each first cell is the same, and the offset information The information is used to determine the reference position of the candidate PDCCH.
- the identifiers of CCEs occupied by candidate PDCCHs corresponding to different first cells are different, and the CCEs occupied by the candidate PDCCHs corresponding to each first cell are located in the first ranking result.
- the CCE occupied by the candidate PDCCH corresponding to the previous first cell before the first cell is determined, and the first sorting result is obtained by sorting the at least two first cells in a preset order.
- the embodiment of the present disclosure also provides a physical downlink control channel detection device, which is applied to network side equipment and includes a memory 1320, a transceiver 1300, and a processor 1310;
- Memory 1320 used to store computer programs
- transceiver 1300 used to send and receive data under the control of the processor
- processor 1310 used to read the computer program in the memory and perform the following operations:
- the first indication information is sent through the transceiver 1300.
- the first indication information is used to indicate the cell information for performing PDCCH detection.
- the PDCCH detection is used to detect the first downlink control information DCI.
- the first DCI is used for scheduling multiplexers. transmission data of each cell.
- the first indication information includes search space parameters of the cell.
- the first indication information is used to indicate that the cell corresponding to the search space parameter is Cell that performs PDCCH detection.
- the search space parameters include CCE aggregation levels, and CCEs corresponding to different first cells have different aggregation levels, and the first cell is a cell that performs PDCCH detection.
- the search space parameters include CCE aggregation levels
- the processor also implements the following steps when executing the program:
- the transceiver transmits Send second instruction message
- the second indication information includes candidate PDCCH identifiers corresponding to the at least two first cells, or includes identifiers of CCEs occupied by the candidate PDCCHs respectively corresponding to the at least two first cells.
- the candidate PDCCH identifiers corresponding to different first cells are different, and the offset information of the CCE index corresponding to each first cell is the same, and the offset information is used to determine the The reference position of the candidate PDCCH.
- the identifiers of CCEs occupied by candidate PDCCHs corresponding to different first cells are different, and the CCEs occupied by the candidate PDCCHs corresponding to each first cell are located in the first ranking result.
- the CCE occupied by the candidate PDCCH corresponding to the previous first cell before the first cell is determined, and the first sorting result is obtained by sorting the at least two first cells in a preset order.
- the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1310 and various circuits of the memory represented by memory 1320 are linked together.
- the bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein.
- the bus interface provides the interface.
- the transceiver 1300 may be a plurality of components, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media.
- the processor 1310 is responsible for managing the bus architecture and general processing, and the memory 1320 can store data used by the processor 1310 when performing operations.
- the processor 1310 may be a central processing unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device). ,CPLD), the processor can also adopt a multi-core architecture.
- CPU central processing unit
- ASIC Application Specific Integrated Circuit
- FPGA field programmable gate array
- FPGA Field-Programmable Gate Array
- CPLD Complex Programmable Logic Device
- the above-mentioned device provided by the embodiment of the present invention can implement all the method steps implemented by the above-mentioned physical downlink control channel detection method embodiment applied to network-side equipment, and can achieve the same technical effect.
- the parts and beneficial effects in this embodiment that are the same as those in the method embodiment will not be described in detail.
- an embodiment of the present disclosure also provides a physical downlink control channel detection device, which is applied to a terminal and includes:
- the first determining unit 1401 is used to determine at least one first cell that performs physical downlink control channel PDCCH detection.
- the PDCCH detection is used to detect the first downlink control information DCI.
- the first DCI is used to schedule multiple cells. transfer data;
- the first detection unit 1402 is configured to perform PDCCH detection according to the at least one first cell.
- the device of the embodiment of the present disclosure further includes:
- a first acquisition unit configured to acquire first indication information, where the first indication information is used to indicate cell information for performing PDCCH detection;
- the first determining unit is configured to determine at least one first cell that performs PDCCH detection according to the first indication information.
- the first indication information includes search space parameters of the cell.
- the first determining unit is configured to determine the cell corresponding to the search space parameter when the number of candidate PDCCHs of at least one aggregation level included in the search space parameter is greater than 0. The first cell.
- the device of the embodiment of the present disclosure further includes:
- the second determination unit is used to determine the PDCCH detection timing and candidate PDCCH information corresponding to each of the first cells.
- the candidate PDCCH information includes the control channel unit CCE aggregation level and the number of candidate PDCCHs corresponding to the CCE aggregation level. ;
- the first detection unit is configured to perform PDCCH detection according to the PDCCH detection timing and candidate PDCCH information corresponding to each of the first cells.
- the second determining unit is used for:
- the first cell is a scheduled cell
- the first cell when the first cell is a scheduled cell, determine the PDCCH detection timing and candidate PDCCH corresponding to the scheduled cell according to the search space parameters of the scheduled cell and the search space parameters of the scheduled cell. information.
- the second determining unit includes:
- a first selection subunit configured to select a first cell from the at least two cells in a first selection manner when the PDCCH detection opportunities of at least two first cells overlap;
- a first determination subunit configured to determine the overlapping PDCCH detection timing as the PDCCH detection timing corresponding to the selected first cell
- the first selection method includes: selecting a cell with the largest or smallest cell index value, selecting a scheduling cell, and one or more of a preset selection order.
- different first cells correspond to different CCE aggregation levels.
- the second determination unit is configured to determine the at least two first cells according to the second indication information when the CCE aggregation levels corresponding to the at least two first cells are the same.
- the second indication information includes: candidate PDCCH identifiers corresponding to the at least two first cells, or identifiers of CCEs occupied by the candidate PDCCHs respectively corresponding to the at least two first cells.
- the candidate PDCCH identifiers corresponding to different first cells are different, and the offset information of the CCE index corresponding to each first cell is the same, and the offset information is used to determine the The reference position of the candidate PDCCH.
- the identifiers of CCEs occupied by candidate PDCCHs corresponding to different first cells are different, and the CCEs occupied by the candidate PDCCHs corresponding to each first cell are located in the first sorting result.
- the CCE occupied by the candidate PDCCH corresponding to the previous first cell before the first cell is determined, and the first sorting result is obtained by sorting the at least two first cells in a preset order.
- an embodiment of the present disclosure also provides a physical downlink control channel detection device, which is applied to network side equipment, including:
- the first sending unit 1501 is configured to send first indication information.
- the first indication information is used to indicate cell information for performing PDCCH detection.
- the PDCCH detection is used to detect first downlink control information DCI.
- the first DCI Used to schedule transmission data of multiple cells.
- the first indication information includes search space parameters of the cell.
- the first indication information is used to indicate that the cell corresponding to the search space parameter is Cell that performs PDCCH detection.
- the search space parameters include CCE aggregation levels, and CCEs corresponding to different first cells have different aggregation levels, and the first cell is a cell that performs PDCCH detection.
- the search space parameters include CCE aggregation level
- the device further includes:
- the second sending unit is configured to send the second indication information when the CCE aggregation levels corresponding to at least two first cells are the same;
- the second indication information includes candidate PDCCH identifiers corresponding to the at least two first cells, or includes identifiers of CCEs occupied by the candidate PDCCHs respectively corresponding to the at least two first cells.
- the candidate PDCCH identifiers corresponding to different first cells are different, and the offset information of the CCE index corresponding to each first cell is the same, and the offset information is used to determine the The reference position of the candidate PDCCH.
- the identifiers of CCEs occupied by candidate PDCCHs corresponding to different first cells are different, and the CCEs occupied by the candidate PDCCHs corresponding to each first cell are located in the first ranking result.
- the CCE occupied by the candidate PDCCH corresponding to the previous first cell before the first cell is determined, and the first sorting result is obtained by sorting the at least two first cells in a preset order.
- the above-mentioned device provided by the embodiment of the present invention can implement all the method steps implemented by the above-mentioned physical downlink control channel detection method embodiment applied to network-side equipment, and can achieve the same technical effect.
- the parts in this embodiment that are the same as those in the method embodiment will no longer be described. Detailed description of the points and beneficial effects.
- each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
- the above integrated units can be implemented in the form of hardware or software functional units.
- the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a processor-readable storage medium.
- the technical solution of the present disclosure is essentially or contributes to the relevant technology, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, It includes several instructions to cause a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in various embodiments of the present disclosure.
- the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code. .
- a processor-readable storage medium stores program instructions, and the program instructions are used to cause the processor to perform the following steps:
- the PDCCH detection is used to detect first downlink control information DCI, the first DCI is used to schedule transmission data of multiple cells; according to the at least one The first cell performs PDCCH detection;
- program instructions are used to cause the processor to perform the following steps:
- the first indication information is used to indicate cell information for performing PDCCH detection
- the PDCCH detection is used to detect first downlink control information DCI
- the first DCI is used to schedule transmission of multiple cells data.
- the terminal device involved in the embodiments of the present disclosure may be a device that provides voice and/or data connectivity to users, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem, etc.
- the names of terminal equipment may also be different.
- the terminal equipment may be called User Equipment (UE).
- UE User Equipment
- wireless terminal equipment It can communicate with one or more core networks (Core Network, CN) via a Radio Access Network (RAN).
- RAN Radio Access Network
- the wireless terminal device can be a mobile terminal device, such as a mobile phone (or "cellular" phone) and computers with mobile terminal devices, which may be, for example, portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile devices, which exchange speech and/or data with the radio access network.
- Wireless terminal equipment may also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, or an access point.
- remote terminal equipment remote terminal equipment
- access terminal equipment access terminal
- user terminal user terminal
- user agent user agent
- user device user device
- the network device involved in the embodiment of the present disclosure may be a base station, and the base station may include multiple cells that provide services for terminals.
- a base station can also be called an access point, or it can be a device in the access network that communicates with wireless terminal equipment through one or more sectors on the air interface, or it can be named by another name.
- the network device may be used to exchange received air frames with Internet Protocol (IP) packets and act as a router between the wireless terminal device and the rest of the access network, where the remainder of the access network may include the Internet Protocol (IP) communication network.
- IP Internet Protocol
- Network devices also coordinate attribute management of the air interface.
- the network equipment involved in the embodiments of the present disclosure may be a network equipment (Base Transceiver Station, BTS) in Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA). ), or it can be a network device (NodeB) in a Wide-band Code Division Multiple Access (WCDMA), or an evolutionary network device in a Long Term Evolution (LTE) system (evolutional Node B, eNB or e-NodeB), 5G base station (gNB) in the 5G network architecture (next generation system), or Home evolved Node B (HeNB), relay node (relay node) , home base station (femto), pico base station (pico), etc., are not limited in the embodiments of the present disclosure.
- network devices may include Centralized Unit (CU) nodes and Distributed Unit (DU) nodes. Centralization units and distribution units can also be geographically separated.
- Network equipment and terminal equipment can each use one or more antennas for multi-input multi-output (MIMO) transmission.
- MIMO transmission can be single-user MIMO (Single User MIMO, SU-MIMO) or multi-user MIMO. (Multiple User MIMO,MU-MIMO).
- MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can be diversity transmission, precoding transmission or beamforming transmission, etc.
- embodiments of the present disclosure may be provided as methods, systems, or computer program products. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment that combines software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) embodying computer-usable program code therein.
- a computer-usable storage media including, but not limited to, magnetic disk storage, optical storage, and the like
- processor-executable instructions may also be stored in a processor-readable memory that causes a computer or other programmable data processing apparatus to operate in a particular manner, such that the generation of instructions stored in the processor-readable memory includes the manufacture of the instruction means product, the instruction device implements the function specified in one process or multiple processes in the flow chart and/or one block or multiple blocks in the block diagram.
- processor-executable instructions may also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce computer-implemented processing, thereby causing the computer or other programmable device to
- the instructions that are executed provide steps for implementing the functions specified in a process or processes of the flowchart diagrams and/or a block or blocks of the block diagrams.
- each module above is only a division of logical functions. In actual implementation, it can be fully or partially integrated into a physical entity, or it can be physically separated. And these modules can all be implemented in the form of software calling through processing components; they can also all be implemented in the form of hardware; some modules can also be implemented in the form of software calling through processing components, and some modules can be implemented in the form of hardware.
- the determination module can be a separate processing element, or can be integrated into a chip of the above device.
- it can also be stored in the memory of the above device in the form of program code, and can be processed by a certain processing element of the above device. Call and execute the functions of the above determined modules.
- the implementation of other modules is similar.
- each step of the above method or each of the above modules can be completed by instructions in the form of hardware integrated logic circuits or software in the processor element.
- each module, unit, sub-unit or sub-module may be one or more integrated circuits configured to implement the above method, such as: one or more application specific integrated circuits (Application Specific Integrated Circuit, ASIC), or one or Multiple microprocessors (digital signal processor, DSP), or one or more field programmable gate arrays (Field Programmable Gate Array, FPGA), etc.
- ASIC Application Specific Integrated Circuit
- DSP digital signal processor
- FPGA Field Programmable Gate Array
- the processing element can be a general-purpose processor, such as a central processing unit (Central Processing Unit, CPU) or other processors that can call the program code.
- these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).
- SOC system-on-a-chip
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Abstract
本公开提供了一种物理下行控制信道检测方法、装置及通信设备,本公开实施例的方法包括:终端确定执行物理下行控制信道PDCCH检测的至少一个第一小区,所述PDCCH检测用于检测第一下行控制信息DCI,所述第一DCI用于调度多个小区的传输数据;所述终端根据所述至少一个第一小区,执行PDCCH检测。
Description
相关申请的交叉引用
本公开主张在2022年7月15日在中国提交的中国专利申请号No.202210837581.9的优先权,其全部内容通过引用包含于此。
本公开涉及通信技术领域,尤其是指一种物理下行控制信道检测方法、装置及通信设备。
相关技术中,支持一个下行调度信令(Downlink Control Information,DCI)调度多个小区的物理共享信道,该物理共享信道包括物理下行共享信道(Physical Downlink Shared Channel,PDSCH)和物理上行共享信道(Physical Uplink Shared Channel,PUSCH)。在终端侧,为了接收该调度信令DCI,需进行物理下行控制信道(Physical Downlink Control Channel,PDCCH)盲检。当终端被配置的DCI用于调度多个小区的数据时,如何执行PDCCH检测是需要解决的问题。
发明内容
本公开的目的在于提供一种物理下行控制信道检测方法、装置及通信设备,以解决当终端被配置的DCI用于调度多个小区的数据时,如何执行PDCCH检测的问题。
为了达到上述目的,本公开提供一种物理下行控制信道检测方法,包括:
终端确定执行物理下行控制信道PDCCH检测的至少一个第一小区,所述PDCCH检测用于检测第一下行控制信息DCI,所述第一DCI用于调度多个小区的传输数据;
所述终端根据所述至少一个第一小区,执行PDCCH检测。
本公开提供的另一个实施例中,本公开实施例的方法,还包括:
获取第一指示信息,所述第一指示信息用于指示执行PDCCH检测的小区信息;
所述终端确定进行物理下行控制信道PDCCH检测的至少一个第一小区,包括:
根据所述第一指示信息,确定执行PDCCH检测的至少一个第一小区。
本公开提供的另一个实施例中,所述第一指示信息包括小区的搜索空间参数。
本公开提供的另一个实施例中,所述根据第一指示信息,确定执行PDCCH检测的至少一个第一小区,包括:
在搜索空间参数中包含的至少一个聚合等级的候选PDCCH个数大于0的情况下,将该搜索空间参数对应的小区确定为所述第一小区。
本公开提供的另一个实施例中,本公开实施例的方法,还包括:
确定每个所述第一小区对应的PDCCH检测时机和候选PDCCH信息,所述候选PDCCH信息包括控制信道单元CCE聚合等级和所述CCE聚合等级对应的候选PDCCH的个数;
所述终端根据所述至少一个第一小区,执行PDCCH检测,包括:
根据每个所述第一小区对应的PDCCH检测时机和候选PDCCH信息,执行PDCCH检测。
本公开提供的另一个实施例中,确定每个所述第一小区对应的PDCCH检测时机和候选PDCCH信息,包括:
在所述第一小区为调度小区的情况下,根据所述调度小区的搜索空间参数,确定所述调度小区对应的PDCCH检测时机和候选PDCCH信息;
在所述第一小区为被调度小区的情况下,根据调度小区的搜索空间参数和所述被调度小区的搜索空间参数,确定所述被调度小区对应的PDCCH检测时机和候选PDCCH信息。
本公开提供的另一个实施例中,确定每个所述第一小区对应的PDCCH检测时机,包括:
在至少两个第一小区的PDCCH检测时机重叠的情况下,按照第一选择方式,从所述至少两个小区中选择一个第一小区;
将重叠的所述PDCCH检测时机确定为选择的所述第一小区对应的PDCCH检测时机;
其中,所述第一选择方式包括:选择小区索引数值最大或最小的小区、选择调度小区、预设选择顺序中的一种或者多种。
本公开提供的另一个实施例中,不同的第一小区对应的CCE的聚合等级不同。
本公开提供的另一个实施例中,确定每个所述第一小区对应的候选PDCCH信息,包括:
在至少两个第一小区对应的CCE聚合等级相同的情况下,根据第二指示信息,确定所述至少两个第一小区中的每个第一小区对应的候选PDCCH;
其中,所述第二指示信息包括:所述至少两个第一小区对应的候选PDCCH标识,或者,所述至少两个第一小区分别对应的候选PDCCH所占用的CCE的标识。
本公开提供的另一个实施例中,不同的第一小区对应的候选PDCCH标识不同,且每个所述第一小区对应的CCE索引的偏移信息相同,所述偏移信息用于确定所述候选PDCCH的参考位置。
本公开提供的另一个实施例中,不同第一小区对应的候选PDCCH所占用的CCE的标识不同,每个所述第一小区对应的候选PDCCH所占用的CCE根据第一排序结果中位于所述第一小区之前的上一个第一小区对应的候选PDCCH所占用的CCE确定,所述第一排序结果是对所述至少两个第一小区按照预设顺序进行排序得到的。
本公开实施例还提供了一种物理下行控制信道检测方法,包括:
网络侧设备发送第一指示信息,所述第一指示信息用于指示执行PDCCH检测的小区信息,所述PDCCH检测用于检测第一下行控制信息DCI,所述第一DCI用于调度多个小区的传输数据。
本公开提供的另一个实施例中,所述第一指示信息包括小区的搜索空间参数。
本公开提供的另一个实施例中,在所述搜索空间参数中至少一个聚合等级的候选PDCCH个数大于0的情况下,所述第一指示信息用于指示所述搜
索空间参数对应的小区为执行PDCCH检测的小区。
本公开提供的另一个实施例中,所述搜索空间参数包括CCE聚合等级,且不同的第一小区对应的CCE有不同的聚合等级,所述第一小区为执行PDCCH检测的小区。
本公开提供的另一个实施例中,所述搜索空间参数包括CCE聚合等级,所述方法还包括:
在至少两个第一小区对应的CCE聚合等级相同的情况下,发送第二指示信息;
其中,所述第二指示信息包括所述至少两个第一小区对应的候选PDCCH标识,或者,包括所述至少两个第一小区分别对应的候选PDCCH所占用的CCE的标识。
本公开提供的另一个实施例中,不同的第一小区对应的候选PDCCH标识不同,且每个所述第一小区对应的CCE索引的偏移信息相同,所述偏移信息用于确定所述候选PDCCH的参考位置。
本公开提供的另一个实施例中,不同第一小区对应的候选PDCCH所占用的CCE的标识不同,每个所述第一小区对应的候选PDCCH所占用的CCE根据第一排序结果中位于所述第一小区之前的上一个第一小区对应的候选PDCCH所占用的CCE确定,所述第一排序结果是对所述至少两个第一小区按照预设顺序进行排序得到的。
本公开实施例还提供了一种物理下行控制信道检测装置,应用于终端,包括存储器,收发机,处理器;
存储器,用于存储计算机程序;收发机,用于在所述处理器的控制下收发数据;处理器,用于读取所述存储器中的计算机程序并执行以下操作:
确定执行物理下行控制信道PDCCH检测的至少一个第一小区,所述PDCCH检测用于检测第一下行控制信息DCI,所述第一DCI用于调度多个小区的传输数据;
根据所述至少一个第一小区,执行PDCCH检测。
本公开提供的另一个实施例中,所述处理器执行所述程序时还实现以下步骤:
通过收发机获取第一指示信息,所述第一指示信息用于指示执行PDCCH检测的小区信息;
根据所述第一指示信息,确定执行PDCCH检测的至少一个第一小区。
本公开提供的另一个实施例中,所述第一指示信息包括小区的搜索空间参数。
本公开提供的另一个实施例中,所述处理器执行所述程序时还实现以下步骤:
在搜索空间参数中包含的至少一个聚合等级的候选PDCCH个数大于0的情况下,将该搜索空间参数对应的小区确定为所述第一小区。
本公开提供的另一个实施例中,所述处理器执行所述程序时还实现以下步骤:
确定每个所述第一小区对应的PDCCH检测时机和候选PDCCH信息,所述候选PDCCH信息包括控制信道单元CCE聚合等级和所述CCE聚合等级对应的候选PDCCH的个数;
根据每个所述第一小区对应的PDCCH检测时机和候选PDCCH信息,执行PDCCH检测。
本公开提供的另一个实施例中,所述处理器执行所述程序时还实现以下步骤:
在所述第一小区为调度小区的情况下,根据所述调度小区的搜索空间参数,确定所述调度小区对应的PDCCH检测时机和候选PDCCH信息;
在所述第一小区为被调度小区的情况下,根据调度小区的搜索空间参数和所述被调度小区的搜索空间参数,确定所述被调度小区对应的PDCCH检测时机和候选PDCCH信息。
本公开提供的另一个实施例中,所述处理器执行所述程序时还实现以下步骤:
在至少两个第一小区的PDCCH检测时机重叠的情况下,按照第一选择方式,从所述至少两个小区中选择一个第一小区;
将重叠的所述PDCCH检测时机确定为选择的所述第一小区对应的PDCCH检测时机;
其中,所述第一选择方式包括:选择小区索引数值最大或最小的小区、选择调度小区、预设选择顺序中的一种或者多种。
本公开提供的另一个实施例中,不同的第一小区对应的CCE的聚合等级不同。
本公开提供的另一个实施例中,所述处理器执行所述程序时还实现以下步骤:
在至少两个第一小区对应的CCE聚合等级相同的情况下,根据第二指示信息,确定所述至少两个第一小区中的每个第一小区对应的候选PDCCH;
其中,所述第二指示信息包括:所述至少两个第一小区对应的候选PDCCH标识,或者,所述至少两个第一小区分别对应的候选PDCCH所占用的CCE的标识。
本公开实施例还提供了一种物理下行控制信道检测装置,应用于网络侧设备,包括存储器,收发机,处理器;
存储器,用于存储计算机程序;收发机,用于在所述处理器的控制下收发数据;处理器,用于读取所述存储器中的计算机程序并执行以下操作:
通过收发机发送第一指示信息,所述第一指示信息用于指示执行PDCCH检测的小区信息,所述PDCCH检测用于检测第一下行控制信息DCI,所述第一DCI用于调度多个小区的传输数据。
本公开实施例还提供了一种物理下行控制信道检测装置,应用于终端,包括:
第一确定单元,用于确定执行物理下行控制信道PDCCH检测的至少一个第一小区,所述PDCCH检测用于检测第一下行控制信息DCI,所述第一DCI用于调度多个小区的传输数据;
第一检测单元,用于根据所述至少一个第一小区,执行PDCCH检测。
本公开实施例还提供了一种物理下行控制信道检测装置,应用于网络侧设备,包括:
第一发送单元,用于发送第一指示信息,所述第一指示信息用于指示执行PDCCH检测的小区信息,所述PDCCH检测用于检测第一下行控制信息DCI,所述第一DCI用于调度多个小区的传输数据。
本公开实施例还提供了一种处理器可读存储介质,所述处理器可读存储介质存储有程序指令,所述程序指令用于使所述处理器执行如上所述的物理下行控制信道检测方法的步骤。
本公开的上述技术方案至少具有如下有益效果:
本公开实施例中,终端确定执行物理下行控制信道PDCCH检测的至少一个第一小区,所述PDCCH检测用于检测第一下行控制信息DCI,所述第一DCI用于调度多个小区的传输数据,终端基于上述多个第一小区执行PDCCH检测,从而实现了在终端被配置用调度多个小区的传输数据的DCI时,执行PDCCH检测的目的。
图1表示本公开实施例可应用的一种网络系统的结构图;
图2表示单小区调度的两种调度方式的示意图;
图3表示多小区调度示意图;
图4表示本公开实施例的物理下行控制信道检测方法的流程示意图之一;
图5表示本公开实施例中不同小区在不同的时隙上进行PDCCH盲检的示意图;
图6表示本公开实施例中显性指示检测时机的示意图;
图7表示本公开实施例中不同的小区对应的候选PDCCH示意图之一;
图8表示本公开实施例中不同的小区对应的候选PDCCH示意图之二;
图9表示本公开实施例中不同的小区对应的候选PDCCH示意图之三;
图10表示本公开实施例中不同的小区对应的候选PDCCH示意图之四;
图11表示本公开实施例的物理下行控制信道检测方法的流程示意图之二;
图12表示本公开实施例的物理下行控制信道检测装置的结构框图之一;
图13表示本公开实施例的物理下行控制信道检测装置的结构框图之二;
图14表示本公开实施例的物理下行控制信道检测装置的模块示意图之一;
图15表示本公开实施例的物理下行控制信道检测装置的模块示意图之
二。
本公开实施例提供的技术方案可以适用于多种系统。例如适用的系统可以是全球移动通讯(Global System of Mobile communication,GSM)系统、码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统、时分同步CDMA(Time Division Synchronous Code Division Multiple Access,TD-SCDMA)系统、通用分组无线业务(general packet radio service,GPRS)系统、长期演进(Long Term Evolution,LTE)系统、时分长期演进(Time Division-LTE,TD-LTE)系统、频分双工长期演进(Frequency Division Duplexing-LTE,FDD LTE)系统、高级长期演进(Long Term Evolution Advanced,LTE-A)系统、通用移动系统(Universal Mobile Telecommunication System,UMTS)、全球互联微波接入(Worldwide Interoperability For Microwave Access,WiMAX)系统、第五代通信技术(5th Generation,5G)新空口(New Radio,NR)系统等。这多种系统中均包括终端设备和网络设备。系统中还可以包括核心网部分,例如演进的分组系统(Evolved Packet System,EPS)、5G系统(5G System,5GS)以及5G核心网(5G Core Network,5GC)等。
图1示出本公开实施例可应用的一种无线通信系统的框图。无线通信系统包括终端11和网络侧设备12、中继系统或可重构智能表面(Reconfigurable Intelligence Surface,RIS)系统。其中,终端11也可以称作终端设备或者用户终端(User Equipment,UE),终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant,PDA)、掌上电脑、上网本、超级移动个人计算机(Ultra-Mobile Personal Computer,UMPC)、移动上网装置(Mobile Internet Device,MID)、可穿戴式设备(Wearable Device)或车载设备(Vehicle User Equipment,VUE)、行人终端(Pedestrian User Equipment,PUE)等终端侧设备,可穿戴式设备包括:手环、耳机、眼镜等。需要说明的是,在本公开实施例并不限定终端11的具体类型。网络侧设备12可以是基站或核心网,
其中,基站可被称为节点B、演进节点B、接入点、基收发机站(Base Transceiver Station,BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set,BSS)、扩展服务集(Extended Service Set,ESS)、B节点、演进型B节点(eNB)、家用B节点、家用演进型B节点、无线局域网(Wireless Local Area Network,WLAN)接入点、WiFi节点、发送接收点(Transmitting Receiving Point,TRP)或所述领域中其他某个合适的术语,只要达到相同的技术效果,所述基站不限于特定技术词汇,需要说明的是,在本公开实施例中仅以NR系统中的基站为例,但是并不限定基站的具体类型。
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,所描述的实施例仅仅是本公开一部分实施例,并不是全部的实施例。基于本公开中的实施例,本领域普通技术人员在没有做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。
为使本领域技术人员能够更好地理解本公开实施例,先进行如下说明。
1、单小区调度和多小区调度;
在5G系统中,支持一个调度信令DCI只调度一个小区的上的数据,其调度数据可以是物理下行共享信道(Physical downlink shared channel,PDSCH),或者物理上行共享信道(Physical Uplink Shared Channel,PUSCH)。根据调度信令DCI和调度数据是否在一个小区上,分为如下两种情况:
自调度:DCI和被调度的数据在一个小区。
跨载波调度:DCI和被调度数据不在一个载波上。
如图2所示,DCI-1和调度的PDSCH-1均在CELL-1(小区1),PDSCH-1是CELL-1的自调度。此时,调度小区(传输DCI的小区)为CELL-1,被调度小区(传输数据的小区)为CELL-1。
DCI-2和调度的PDSCH-2分布在不同的小区上,PDSCH-2属于跨载波调度的。此时,调度小区(传输DCI的小区)为CELL-1,被调度小区(传输数据的小区)为CELL-2。
DCI-3和调度的PDSCH-3均在CELL-3(小区3),PDSCH-3是CELL-3的自调度。此时,调度小区(传输DCI的小区)为CELL-3,被调度小区(传输数据的小区)为CELL-3。
为了减少调度信令的开销,支持一个DCI调度多个小区上的数据。即调度信令DCI在一个小区上发送,被其调度的数据可以是在多个小区上发送的。如图3所示,调度信令DCI在CELL-1(小区1)上发送,该信令调度了3个小区上的PDSCH。图3中CELL-1,即是调度小区(发送DCI的小区),也是被调度小区(传输数据的小区);CELL-2和CELL-3,是被调度小区(传输数据的小区);
需要说明的是,上述DCI调度信令,承载在PDCCH上,终端为了接收DCI,需要对多个PDCCH的候选信道进行检测,因为终端不知道基站是否发送了DCI,终端需要对所有候选PDCCH进行检测,这个过程称为PDCCH盲检。
2、搜索空间的配置,以及需要进行做盲检的PDCCH候选信道。
PDCCH是用来发送下行控制信息(Downlink Control Information,DCI),其传输的信息包括公共控制信息(系统信息,paging信息等)和用户专属控制信息(下行资源分配指示,上行资源调度,触发PRACH,上行功率控制参数等)。
为了便于描述PDCCH,NR引入了CORESET概念,控制资源集合(Control Resource Set,CORESET)表征PDCCH信道资源块的大小。一个CORESET由若干个控制信道单元(Control-Channel Element,CCE)组成,每个CCE由6个资源块(Resource Block,RB)组成。在当前协议中,一个CORESET频域上最多有96物理资源块(physical resource block,PRB),时域上最多有3个符号。即CORESET最多有48个CCE组成
在一个CORESET中,包括多个候选PDCCH(candidate PDCCH),这些候选的控制信道需要UE都进行检测(monitor),一般来讲,任何一个或者多个CCE都可以形成一个候选PDCCH。标准当前规定,PDCCH由1个CCE组成的,叫做CCE聚合等级为1的候选PDCCH,PDCCH由2个CCE组成的,叫做CCE聚合等级为2的候选PDCCH,PDCCH由4个CCE组成的,叫做CCE聚合等级为4的候选PDCCH,以此类推,当前标准协议规定支持的CCE聚合等级为:1,2,4,8,16。
在一个CORESET中,相同CCE聚合级别的候选PDCCH也会有多个,
当前标准协议的。数目为0,1,2,3,4,5,6,8。
搜索空间定义的是UE需要执行PDCCH检测的时间范围(注意,频域宽和时间长范围已经在CORESET中定义)。搜索空间分为公共搜索空间和UE专属搜索空间。公共搜索空间是指所有UE或者一组需要执行PDCCH检测的搜索空间,记为CSS(common search space)。UE专属搜索空间是基站专为某一UE单独配置,需要被配置的UE执行PDCCH检测的搜索空间,记为USS((UE specific search space)。
配置USS的搜索空间,主要包括如下几个参数:
1、检测时隙周期及偏移量(monitoringSlotPeriodicityAndOffset);
该参数包含两个信息:一个是检测周期T,以时隙为单位;另外一个是偏移量offset,以时隙为单位;如当T=16,offset=1时,表示时隙1,时隙17,时隙33…等时隙上终端需要进行PDCCH盲检。标准中最大T为20480。
2:monitoringSymbolsWithinSlot;
该参数表示某个特定时隙上,PDCCH检测机会的首个符号在时隙的位置。
3:nrofCandidates;
该参数表示终端做PDCCH盲检时,候选PDCCH信息。配置包括两个信息:
聚合等级(L):即候选PDCCH的包含的CCE的个数;
相应聚合等级的候选PDCCH个数。
上述搜索空间的定义,举例如下:
monitoringSlotPeriodicityAndOffset=sl4,0(T=4,offset=0);
monitoringSymbolsWithinSlot=1000000 1000000(PDCCH检测机会位于14个符号中的第一个符号,第7个符号);
nrofCandidates=aggregationLevel4n4(L=4,PDCCH候选个数为4)。
当终端被配置“一个DCI调度多个小区上”的数据时,如何分配PDCCH盲检任务(检测配置的多个候选PDCCH)到一个或者多个小区上,以便终端能够确定相关小区PDCCH盲检的工作量是需要解决的问题。
如图4所示,本公开实施例提供了一种物理下行控制信道检测方法,包括:
步骤401:终端确定执行物理下行控制信道PDCCH检测的至少一个第一小区,所述PDCCH检测用于检测第一下行控制信息DCI,所述第一DCI用于调度多个小区的传输数据。
本步骤中,终端可以通过显式或隐式的方式确定执行PDCCH检测的至少一个第一小区。例如,根据网络侧设备发送的第一指示信息确定上述第一小区,或者,根据协议约定确定上述第一小区。
上述第一小区可以是调度小区,也可以是被调度小区。本公开实施例中的调度小区是指传输上述第一DCI的小区,上述被调度小区是指传输第一DCI调度的数据的小区。
本公开实施例中的PDCCH检测也可描述为PDCCH盲检。
步骤402:所述终端根据所述至少一个第一小区,执行PDCCH检测。
示例性的,终端根据每个第一小区对应的PDCCH检测模块进行PDCCH盲检。
上述第一小区执行PDCCH检测是指将上述PDCCH检测工作量或者检测任务计算(counting)到该小区,即相关PDCCH盲检工作由该小区对应的PDCCH检测模块来承担。
例如,终端确定PDCCH检测量只计算到调度小区,则使用调度小区对应的PDCCH检测模块进行PDCCH盲检,又例如,终端确定PDCCH检测量只计算到一个被调度小区,则使用该被调度小区对应的PDCCH检测模块进行PDCCH盲检。再例如,终端确定PDCCH检测量计算到多个小区(包括调度小区和被调度小区中的至少一项),则分别使用每个小区对应的PDCCH检测模块进行PDCCH盲检。
需要说明的是,本公开实施例中的PDCCH检测量(或PDCCH盲检量)是指一定数量的候选PDCCH检测。本公开提供的另一个实施例中,一定数量的候选PDCCH对应的CCE没有交迭(重叠)。
需要说明的是,本公开实施例中的PDCCH检测,如果没有特殊说明,是指用于多小区数据调度的控制信道检测,包括:检测下行物理共享数据信道,或/和检测上行物理共享信道。
本公开实施例中,终端确定执行物理下行控制信道PDCCH检测的至少
一个第一小区,所述PDCCH检测用于检测第一下行控制信息DCI,所述第一DCI用于调度多个小区的传输数据,终端基于上述多个第一小区执行PDCCH检测,从而实现了在终端被配置用调度多个小区的传输数据的DCI时,执行PDCCH检测的目的。
本公开提供的另一个实施例中,本公开实施例的方法,还包括:
获取第一指示信息,所述第一指示信息用于指示执行PDCCH检测的小区信息;
所述终端确定进行物理下行控制信道PDCCH检测的至少一个第一小区,包括:
根据所述第一指示信息,确定执行PDCCH检测的至少一个第一小区。
通过上述第一指示信息可以显式或隐式地指示执行物理下行控制信道PDCCH检测的至少一个第一小区。例如,通过第一指示信息显式地指示至少一个小区的标识,或者,该第一指示信息通过指示搜索空间参数隐式地指示上述第一小区。
上述第一指示信息可通过高层信令发送。
本公开提供的另一个实施例中,所述第一指示信息包括小区的搜索空间参数。
其中,不同小区对应的搜索空间参数可以单独配置,从而实现不同小区对应不同参数的效果。
该搜索空间参数具体是针对多小区调度的搜索空间参数。上述搜索空间参数包括:检测时隙周期及偏移量(monitoringSlotPeriodicityAndOffset)、monitoringSymbolsWithinSlo和nrofCandidates中的至少一项。
这里,可通过是否配置多小区调度的搜索空间参数来隐式指示上述第一小区。
本公开提供的另一个实施例中,所述根据第一指示信息,确定执行PDCCH检测的至少一个第一小区,包括:
在搜索空间参数中包含的至少一个聚合等级的候选PDCCH个数大于0的情况下,将该搜索空间参数对应的小区确定为所述第一小区。
例如,所述搜索空间参数中包含的至少一个聚合等级的候选PDCCH个
数大于0,且该搜索空间参数为调度小区对应的搜索空间参数,则确定所述调度小区为所述第一小区;
或者,所述搜索空间参数中包含的至少一个聚合等级的候选PDCCH个数大于0,且该搜索空间参数为一个被调度小区对应的搜索空间参数,则确定所述被调度小区为所述第一小区;
或者,所述搜索空间参数中包含的至少一个聚合等级的候选PDCCH个数大于0,且该搜索空间参数为至少一个小区对应的搜索空间参数,则确定所述至少一个小区为所述第一小区。
本公开提供的另一个实施例中,本公开实施例的方法,还包括:
确定每个所述第一小区对应的PDCCH检测时机和候选PDCCH信息,所述候选PDCCH信息包括控制信道单元CCE聚合等级和所述CCE聚合等级对应的候选PDCCH的个数;
所述终端根据所述至少一个第一小区,执行PDCCH检测,包括:
根据每个所述第一小区对应的PDCCH检测时机和候选PDCCH信息,执行PDCCH检测。
确定每个所述第一小区对应的PDCCH检测时机和候选PDCCH信息,包括:
在所述第一小区为调度小区的情况下,根据所述调度小区的搜索空间参数,确定所述调度小区对应的PDCCH检测时机和候选PDCCH信息;
在所述第一小区为被调度小区的情况下,根据调度小区的搜索空间参数和所述被调度小区的搜索空间参数,确定所述被调度小区对应的PDCCH检测时机和候选PDCCH信息。
在一可选实施方式中,如果只有调度小区上配置了多小区调度的搜索空间,且候选PDCCH参数nrofCandidates>0,则认为多小区调度DCI的PDCCH盲检仅仅计算到调度小区。
这里,通过配置调度小区的多小区调度的搜索空间searchspace的nrofCandidates数值大于0,隐性指示PDCCH盲检计算到调度小区,否则表示PDCCH盲检不计算到调度小区。终端根据调度小区的搜索空间参数(如:CORESET编号,PDCCH盲检nrofCandidates,检测周期/偏移量
monitoringSlotPeriodicityAndOffset,时隙中的检测符号位置monitoringSymbolsWithinSlot等)计算调度小区的PDCCH检测时机和候选PDCCH信息。
在一可选实施方式中,如果只有一个被调度小区上配置了多小区调度的搜索空间,且候选PDCCH参数nrofCandidates>0,则认为多小区调度DCI的PDCCH盲检仅仅计算到该被调度小区,并根据调度小区和被调度小区配置的搜索空间参数(如PDCCH盲检nrofCandidates,或/和检测周期/偏移量monitoringSlotPeriodicityAndOffset,或/和时隙中的检测符号位置monitoringSymbolsWithinSlot),确定多小区调度DCI的PDCCH检测时机和候选PDCCH信息。
这里,通过配置一个被调度小区的多小区调度的搜索空间searchspace的nrofCandidates数值大于0,隐性指示PDCCH盲检计算到该被调度小区,否则表示PDCCH盲检不计算到该被调度小区。
在一可选实施方式中,如果两个及以上小区配置了多小区调度的搜索空间,且候选PDCCH参数nrofCandidates>0,则认为多小区调度DCI的PDCCH盲检计算到多个小区;并根据调度小区和被调度小区配置的搜索空间参数,确定多小区调度DCI的PDCCH检测时机和候选PDCCH信息。
在本公开的第一具体实施例中,通过配置多小区调度的搜索空间searchspace的nrofCandidates数值隐性指示第一小区;
该实施例中,通过配置多小区调度的搜索空间searchspace的nrofCandidates数值,隐性指示多小区调度DCI对应的PDCCH盲检是否分配到配置小区,配置小区可以是调度小区和被调度小区中的至少一项。
具体的,当“配置的所有聚合等级的候选PDCCH个数均为0时”,终端认为:多小区调度的PDCCH盲检不计算到该配置小区,否则表示PDCCH盲检计算到该配置小区。
示例一,基站侧:对于小区CELL-1,配置的多小区调度的搜索空间searchspace的nrofCandidates数值如下:
nrofCandidates SEQUENCE{
aggregationLevel1=n0 //选择范围{n0,n1,n2,n3,n4,n5,n6,n8},
aggregationLevel2=n0 //选择范围{n0,n1,n2,n3,n4,n5,n6,n8},
aggregationLevel4=n0 //选择范围{n0,n1,n2,n3,n4,n5,n6,n8},
aggregationLevel8=n0 //选择范围{n0,n1,n2,n3,n4,n5,n6,n8},
aggregationLevel16=n0 //选择范围{n0,n1,n2,n3,n4,n5,n6,n8},
dci-Formats-R18 ENUMERATED {formats0-X-And-1-X,formats0-X-And-1-X}//表示相关搜索空间的配置,是和多小区调度相关,formats0-X表示调度上行数据的多小区调度DCI格式,formats1-X表示调度下行数据的多小区调度DCI格式;
需要说明的是,上述配置的搜索空间中,配置了用于调度多小区的DCI格式(format 0_X,或者format 1_X),则认为该搜索空间是多小区调度的搜索空间(下同)。
上述所有聚合等级的PDCCH候选个数均为0,CELL-1可以是调度小区,也可以是被调度小区。
终端侧:由于所有聚合等级的PDCCH候选个数均为0,终端认为多小区调度的搜索空间对应的PDCCH盲检,不分配到CELL-1或不计算到CELL-1上。同时针对该搜索空间相关联的多小区调度DCI格式不做检测,其DCI格式的调度信息长度也不计算在该小区中。
示例二,基站侧,对于CELL-2,配置的多小区调度的搜索空间searchspace的nrofCandidates数值如下:
nrofCandidates SEQUENCE{
aggregationLevel1=n0 //选择范围{n0,n1,n2,n3,n4,n5,n6,n8},
aggregationLevel2=n0 //选择范围{n0,n1,n2,n3,n4,n5,n6,n8},
aggregationLevel4=n0 //选择范围{n0,n1,n2,n3,n4,n5,n6,n8},
aggregationLevel8=n4 //选择范围{n0,n1,n2,n3,n4,n5,n6,n8},
aggregationLevel16=n8 //选择范围{n0,n1,n2,n3,n4,n5,n6,n8},dci-Formats-R18 ENUMERATED {formats0-X-And-1-X,formats0-X-And-1-X}//表示相关搜索空间的配置,是和多小区调度相关,formats0-X表示调度上行数据的多小区调度DCI格式,formats1-X表示调度下行数据的多小区调度DCI格式。
可以看出,上述聚合等级L=8和L=16的PDCCH候选个数(分别为4和8)均为大于0,CELL-2可以是调度小区,也可以是被调度小区。
终端侧:终端接收基站配置的多小区调度的搜索空间参数,由于聚合等级L=8和L=16的PDCCH候选个数均为大于0。则终端认为:配置的搜索空间对应的PDCCH盲检,分配到CELL-2或计算到CELL-2上,同时针对该搜索空间相关联的多小区调度DCI格式需要进行检测,其DCI格式的调度信息长度也计算在该小区中。
需要说明的是,对于多小区的调度,终端不期望所有参与调度的小区,其所有的聚合等级对应的候选PDCCH个数都为0,即终端希望至少有一个小区配置的至少一个聚合等级对应的候选PDCCH个数大于0。
本实施例中,UE通过对配置的所有聚合等级的所有候选PDCCH个数进行判断,来确定PDCCH检测量分配的小区。在不增加相关协议复杂度的情况下,即可指示多小区调度信令的候选PDCCH盲检工作的分配,可以分配给调度小区,或者被调度小区,也可以分配给多个小区。
本公开提供的另一个实施例中,不同的第一小区对应的检测偏移量不同。该检测偏移量可通过上述搜索空间参数中的检测时隙周期及偏移量指示,该检测偏移量用于指示在一个周期中终端执行PDCCH检测的偏移信息。
本公开提供的另一个实施例中,确定每个所述第一小区对应的PDCCH检测时机,包括:
在至少两个第一小区的PDCCH检测时机重叠的情况下,按照第一选择方式,从所述至少两个小区中选择一个第一小区;
将重叠的所述PDCCH检测时机确定为选择的所述第一小区对应的PDCCH检测时机;
其中,所述第一选择方式包括:选择小区索引数值最大或最小的小区、选择调度小区、预设选择顺序中的一种或者多种。
本公开提供的另一个实施例中,不同的第一小区对应的检测偏移量相同,则在根据检测偏移量和候选PDCCH信息确定至少两个第一小区的PDCCH检测时机重叠的情况下,按照第一选择方式,从所述至少两个小区中选择一个第一小区。
在本公开的第二实施例中,当多小区调度DCI的搜索空间在多个小区上配置时,基站以时分的方式,将PDCCH盲检计算到多个调度小区上;即不同调度小区检测PDCCH的时间不同(即检测时机不同),比如:在不同时隙上,或者在同一个时隙中的不同符号上,执行PDCCH检测。
下面以“被调度小区各自配置搜索空间,通过配置不同的偏移数值来实现”为例进行说明:
基站侧配置:
示例1:参与多载波的调度为CELL-1,CELL-2,CELL-3,CELL-4,配置的多小区调度的搜索空间searchspace的“检测周期/偏移量monitoringSlotPeriodicityAndOffset数值如下:
CELL-1的配置参数(调度小区/被调度小区);
searchspace{monitoringSlotPeriodicityAndOffset周期=sl4,offset=0//选择范围(0..3)
monitoringSymbolsWithinSlot=1000000 0000000//检测时机在时隙的第一个符号上
dci-Formats-R18 ENUMERATED {formats0-X-And-1-X,formats0-X-And-1-X}//表示相关搜索空间的配置,是和多小区调度相关,formats0-X表示调度上行数据的多小区调度DCI格式,formats1-X表示调度下行数据的多小区调度DCI格式}。
CELL-2的配置参数(被调度小区);
searchspace{monitoringSlotPeriodicityAndOffset sl周期=sl4,offset=4,1//选择范围(0..3)
dci-Formats-R18 ENUMERATED {formats0-X-And-1-X,formats0-X-And-1-X}//表示相关搜索空间的配置,是和多小区调度相关,formats0-X表示调度上行数据的多小区调度DCI格式,formats1-X表示调度下行数据的多小区调度DCI格式}。
CELL-3的配置参数(被调度小区);
searchspace{monitoringSlotPeriodicityAndOffset 周期=sl4,offset=2//选择范围(0..3)
dci-Formats-R18 ENUMERATED {formats0-X-And-1-X,formats0-X-And-1-X}//表示相关搜索空间的配置,是和多小区调度相关,formats0-X表示调度上行数据的多小区调度DCI格式,formats1-X表示调度下行数据的多小区调度DCI格式}。
CELL-4的配置参数(被调度小区);
searchspace{monitoringSlotPeriodicityAndOffset 周期=sl4,offset=3//选择范围(0..3)
dci-Formats-R18 ENUMERATED {formats0-X-And-1-X,formats0-X-And-1-X}//表示相关搜索空间的配置,是和多小区调度相关,formats0-X表示调度上行数据的多小区调度DCI格式,formats1-X表示调度下行数据的多小区调度DCI格式}。
终端侧的执行动作:
在被调度小区上,如果配置的搜索空间是多小区调度的,则终端认为,配置的检测周期/偏移量monitoringSlotPeriodicityAndOffset有效,其使用该参数和nrofCandidates,结合“调度小区配置多小区调度相关的搜索空间的其它参数”确定该小区的PDCCH检测时机和检测量;即使用被调度小区配置的“检测周期/偏移量monitoringSlotPeriodicityAndOffset和nrofCandidates”替代“调度小区配置的搜索空间”中的这两个参数,确定该被调度小区的PDCCH检测时机和检测量。
进一步的,同一个多小区调度集合中(一个调度信令可以调度小区的集合),不同小区配置的周期数值相同,偏移量不同,即保证不同小区的检测时机在不同的时间单元上(如:不同的时隙)。
进一步的,在根据所述检测偏移量和候选PDCCH信息确定至少两个第一小区的PDCCH检测时机重叠的情况下,按照第一选择方式,在所述至少两个小区中选择一个第一小区;
将重叠的所述PDCCH检测时机,确定为选择的所述第一小区对应的PDCCH检测时机;
其中,所述第一选择方式包括:
选择小区索引数值最大或最小的小区;
选择调度小区;
按照预设选择顺序进行选择。
这里,如果参数“检测周期/偏移量monitoringSlotPeriodicityAndOffset”的配置,导致不同小区在相同的时间单元上(如:不同的时隙)有交迭,则可按照上述第一选择方式选择其中一个小区进行PDCCH的盲检。
另外,在选择之前,排除“会导致PDCCH检测总量可能超过检测能力”的小区,特别对于辅小区(scell)。
本实施例中,上述参与多小区调度的小区搜索空间配置中,如图5所示,调度小区和被调度小区配置的周期数值相同,但offset数值不同,被调度小区使用调度小区的monitoringSymbolsWithinSlot;各个小区使用自己小区配置的offset数值。这样可以实现不同被调度小区,在不同的时隙做PDCCH盲检的目标。
本公开提供的另一个实施例中,上述第二具体实施例中,也可通过下述方法实现:
基站配置一个用于多小区调度的搜索空间时,同时指示将相应的检测时机count到“基站指定”的调度小区上(即显式指示检测时机);一种实现方式是按照有效的MO(或者按照一定的时间周期段),轮询分配到各个调度小区上;假设:配置的MO周期为1时隙,每个时隙中有1个MO,参与多小区调度的小区为CELL-1,CELL-2,CELL-3,如图6所示。
基站侧配置:
示例性地,参与多载波的调度为CELL-1,CELL-2,CELL-3,CELL-4,配置的多小区调度的搜索空间searchspace的“检测周期/偏移量monitoringSymbolsWithinSlot数值如下:
CELL-1的配置参数(调度小区/被调度小区):
searchspace{monitoringSlotPeriodicityAndOffset 周期=sl4,offset=0//选择范围(0..3)
monitoringSymbolsWithinSlot=1000000 0000000//检测时机在时隙的第1个符号上;
dci-Formats-R18 ENUMERATED {formats0-X-And-1-X,
formats0-X-And-1-X}//表示相关搜索空间的配置,是和多小区调度相关,formats0-X表示调度上行数据的多小区调度DCI格式,formats1-X表示调度下行数据的多小区调度DCI格式,
}
CELL-2的配置参数(被调度小区):
searchspace{monitoringSymbolsWithinSlot=0010000 0000000//检测时机在时隙的第3个符号上}
dci-Formats-R18 ENUMERATED {formats0-X-And-1-X,formats0-X-And-1-X}//表示相关搜索空间的配置,是和多小区调度相关,formats0-X表示调度上行数据的多小区调度DCI格式,formats1-X表示调度下行数据的多小区调度DCI格式,
CELL-3的配置参数(被调度小区):
searchspace{monitoringSymbolsWithinSlot=0000100 0000000//检测时机在时隙的第5个符号上}
dci-Formats-R18 ENUMERATED {formats0-X-And-1-X,formats0-X-And-1-X}//表示相关搜索空间的配置,是和多小区调度相关,formats0-X表示调度上行数据的多小区调度DCI格式,formats1-X表示调度下行数据的多小区调度DCI格式}
CELL-4的配置参数(被调度小区):
searchspace{monitoringSymbolsWithinSlot=0000000 1000000//检测时机在时隙的第8个符号上}
dci-Formats-R18 ENUMERATED {formats0-X-And-1-X,formats0-X-And-1-X}//表示相关搜索空间的配置,是和多小区调度相关,formats0-X表示调度上行数据的多小区调度DCI格式,formats1-X表示调度下行数据的多小区调度DCI格式}
终端侧的执行动作:
在被调度小区上,如果配置的搜索空间多小区调度的,则终端认为,配置的检monitoringSymbolsWithinSlot有效,其使用该参数和nrofCandidates,结合“调度小区配置多小区调度相关的搜索空间的其它参数”确定该小区的
PDCCH检测时机和检测量;即使用被调度小区配置的“monitoringSymbolsWithinSlot和nrofCandidates”替代“调度小区配置的调度相关的搜索空间”中的两个参数,确定该被调度小区的PDCCH检测时机和检测量。
上述参与多小区调度的小区搜索空间配置中,被调度小区配置使用调度小区的配置的周期数和offset数值,被调度小区本小区配置的的monitoringSymbolsWithinSlot;当各小区配置检测时机在时隙中的位置不同时,可以实现不同被调度小区,在不同的时隙做PDCCH盲检的目标,这样可避免不同被调度小区重复检测,减少终端做PDCCH检测的功耗。
进一步的,同一个多小区调度集合中(一个调度信令可以调度小区的集合),不同UE配置的PDCCH起始位置不同,即保证不同小区的检测时机在不同的时间单元上(如:CORESET的符号个数)。
进一步的:当如果搜索空间参数的配置,导致不同小区在相同的时间单元上(如:CORESET的符号个数)有交迭,则选择其中一个小区进行PDCCH的盲检,选择的准则可以是:小区索引数值最小(或者最大)。调度小区。或者按照一定的顺序,依次计算到不同的小区上。
需要说明的是:对应调度小区的搜索空间的配置,需要配置搜索空间需要所的所有参数(如:CORESET,searchspace ID,检测时机的周期&偏移量,等参数);
上述实现方法,无需修改相关协议框架,也不用新增配置信息,只把原协议中不定义或者定义了终端认为无效的参数(monitoringSlotPeriodicityAndOffset或/和monitoringSymbolsWithinSlot),进行定义,并且认为有效,即可实现候选PDCCH盲检的工作分配。
本公开提供的另一个实施例中,不同的第一小区对应的CCE的聚合等级不同。
这里,以不同聚合等级L,将候选PDCCH检测量分配给不同的小区。
在本公开的第三具体实施例中,以一个时隙中,将PDCCH盲检计算到多个被调度小区上;即不同调度小区检测的候选PDCCH不同为例进行说明,比如:对于一个调度多小区的DCI,假设总共需要检测11个候选PDCCH,
被调度小区总共有4个,则每个小区分配相应数量的候选PDCCH进行盲检;
本实施例以不同聚合等级L的维度,将候选PDCCH分配给不同的被调度小区。如表1所示,多小区调度的PDCCH,基站配置对应的候选PDCCH个数和聚合等级;
表1
表1中,假设多小区调度的DCI,相应候选PDCCH的聚合等级为2,4,8,16,每个聚合等级对应的候选PDCCH个数分别为4,4,2,1(当然,配置可以相同,也可以不同,这里不做限制);其中CELL-1是调度小区,也是被调度小区;CELL-2/3/4,是被调度小区。不同小区配置对应的聚合等级不同(每个小区可以包含0个,1个或者多个,不做限制);这样就达到了不同小区承担相应的候选PDCCH检测的作用。
基站侧配置:
参与多载波的调度为CELL-1,CELL-2,CELL-3,CELL-4,配置的多小区调度的搜索空间searchspace的“聚合等级aggregationLevel“数值如下:
CELL-1的配置参数(调度小区/被调度小区):
nrofCandidates SEQUENCE{aggregationLevel2=n4//选择范围{n0,n1,n2,n3,n4,n5,n6,n8}};
CELL-2的配置参数(被调度小区):
nrofCandidates SEQUENCE{aggregationLevel4=n4//选择范围{n0,n1,n2,n3,n4,n5,n6,n8}};
CELL-3的配置参数(被调度小区):
nrofCandidates SEQUENCE{aggregationLevel8=n2//选择范围{n0,n1,n2,n3,n4,n5,n6,n8}};
CELL-4的配置参数(被调度小区):
nrofCandidates SEQUENCE{aggregationLevel16=n1//选择范围{n0,n1,n2,n3,n4,n5,n6,n8}}。
由于上述参数配置是基站配置的,为了达到合理分配候选PDCCH盲检到不同的被调度小区上,同时为了减少检测PDCCH时的功率消耗,终端不期望在基站配置候选PDCCH的聚合等级时,不同小区的聚合等级数值有重合,至少不希望聚合等级完全相同。
终端侧的执行动作:
在被调度小区上,如果配置的搜索空间是多小区调度的,则终端认为,参数nrofCandidates有效,结合“调度小区配置多小区调度相关的搜索空间的其它参数”确定该小区的PDCCH检测时机和检测量;即使用被调度小区配置的“nrofCandidatest和“调度小区配置的调度相关的搜索空间”中的参数,确定该被调度小区的PDCCH检测时机和检测量。
进一步的,同一个多小区调度集合中(一个调度信令可以调度小区的集合),不同UE配置的聚合等级数值不同,即保证不同小区的检测候选PDCCH不同。
上述参与多小区调度的小区搜索空间配置中,不同小区配置不同的聚合等级。这样可以实现不同被调度小区,在不同候选PDCCH做盲检,具体的请参考图7和图8所示。
本公开提供的另一个实施例中,确定每个所述第一小区对应的候选PDCCH信息,包括:
在至少两个第一小区对应的CCE聚合等级相同的情况下,根据第二指示信息,确定所述至少两个第一小区中的每个第一小区对应的候选PDCCH;
其中,所述第二指示信息包括:所述至少两个第一小区对应的候选PDCCH标识,或者,所述至少两个第一小区分别对应的候选PDCCH所占用的CCE的标识。
本公开提供的另一个实施例中,所述第三指示信息中,不同的第一小区对应的候选PDCCH标识不同,或者,不同第一小区对应的候选PDCCH所占用的CCE的标识不同。
本公开实施例中,不同的第一小区对应的候选PDCCH标识不同是指不同的第一小区对应的全部PDCCH标识不同或者部分PDCCH标识不同。
作为一种本公开提供的另一个实施例中实现方式,不同的第一小区对应
的候选PDCCH标识不同,且每个所述第一小区对应的CCE索引的偏移信息相同,所述偏移信息用于确定所述候选PDCCH的参考位置。
作为另一种本公开提供的另一个实施例中实现方式,不同第一小区对应的候选PDCCH所占用的CCE的标识不同,每个所述第一小区对应的候选PDCCH所占用的CCE根据第一排序结果中位于所述第一小区之前的上一个第一小区对应的候选PDCCH所占用的CCE确定,所述第一排序结果是对所述至少两个第一小区按照预设顺序进行排序得到的。
例如,上述第一排序结果是按照小区编号从小到达的顺序对至少两个第一小区进行排序得到的,则对于某一个小区,其对应的候选PDCCH所占用的CCE的标识是根据上一个小区的最后一个候选PDCCH占用的最后一个CCE索引确定的。
在本公开的第四具体实施例中,被调度小区配置相同的聚合等级L时,检测候选PDCCH包含的CCE是否存在交迭;
具体的,以一个时隙中,将PDCCH盲检计算到多个小区上;即不同小区检测的候选PDCCH不同为例进行说明,比如:对于一个调度多小区的DCI,假设总共需要检测16个候选PDCCH,被调度小区总共有4个,则每个小区分配4个候选PDCCH进行盲检;考虑到多小区调度的DCI包含的信息比较多,需要较高的CCE聚合等级(候选PDCCH包含较多的无线资源),以保障接收性能,如聚合等级只有4/8/16满足要求,此时如果有4个小区参与PDCCH盲检,则至少有两个小区使用相同的聚合等级L。
下面对两个小区配置的聚合等级L有相同时,如何计算不同小区的候选PDCCH对应的CCE进行说明。具体包含如下两个方法:
方法A:配置了相同聚合等级的小区,配置不同候选PDCCH的起始位置(即不同的小区配置不同的候选PDCCH标识);例如,CELL-2,和CELL-3都配置了L=4,总的候选PDCCH为4个;
CELL-2配置的候选PDCCH为PDCCH-0,PDCCH-1;
CELL-3配置的候选PDCCH为PDCCH-2,PDCCH-3;
方法B;配置了相同聚合等级的小区,候选PDCCH占用的CCE不同;例如,CELL-2,和CELL-3都配置了L=4,总的候选PDCCH为4个。CELL-2
和CELL-3配置了2个候选PDCCH;
CELL-2配置的候选PDCCH为PDCCH-0,占用CCE编号为0,1,2,3,PDCCH-1;占用CCE编号为4,5,6,7。
CELL-3配置的候选PDCCH为PDCCH-2,占用CCE编号为8,9,10,11,PDCCH-3;占用CCE编号为12,13,14,15。
下面对上述方法A的实现过程进行具体说明。
基站侧参数配置:
在配置搜索空间的候选PDCCH参数,增加起始候选PDCCH的参数,或者以小区编号为顺序,依次确定被调度小区对应的候选PDCCH所对应的编号;
其中,增加起始候选PDCCH的参数的示例如下:
CELL-2的配置参数(被调度小区):
nrofCandidates SEQUENCE{aggregationLevel4=n2//选择范围{n0,n1,n2,n3,n4,n5,n6,n8}
starCandidates=0//CELL-2的起始候选PDCCH编号,对应PDCCH-0,PDCCH-1};
CELL-3的配置参数(被调度小区):
nrofCandidates SEQUENCE{aggregationLevel4=n2//选择范围{n0,n1,n2,n3,n4,n5,n6,n8}
starCandidates=2//CELL-2的起始候选PDCCH编号,对应PDCCH-2,PDCCH-3};
或者,以小区编号为顺序,确定个小区的候选PDCCH的起始编号,示例如下:
CELL-2的配置参数(被调度小区):
nrofCandidates SEQUENCE{aggregationLevel4=n2//选择范围{n0,n1,n2,n3,n4,n5,n6,n8};
CELL-3的配置参数(被调度小区):
nrofCandidates SEQUENCE{aggregationLevel4=n2//选择范围{n0,n1,n2,n3,n4,n5,n6,n8}。
终端侧的执行行为:
终端根据基站配置的搜索空间的参数,可以确定CELL-2和CELL-3都配置了L=4的候选PDCCH,且候选PDCCH的个数都为2;
终端根据starCandidates参数,或者小区索引顺序,可以确定:
CELL-2对应的PDCCH候选编号为0和1;
CELL-3对应的PDCCH候选编号为2和3。
对于聚合等级为L,编号为的候选PDCCH,可通过以下公式计算候选PDCCH所占用的CCE。
对于公共搜索空间(CSS),为0,对于基于UE的搜索空间(USS),Yp,-1=nRNTI≠0,Ap=39827(当pmod3=0),Ap=39829当(pmod3=1),Ap=39839(当pmod3=2)。另外参数D=65537;nRNTI是分配给UE的UE识别号(C-RNTI)。i=0,……,L-1;NCCE,P是CORESET p的CCEs的个数,数值为从0到NCCE,P-1;p为CORESET的编号,L表示聚合等级,nCI是多跨载波调度时,配置给UE的载波指示域信息,nCI_offset表示载波指示域偏移信息(CCE索引的偏移信息),对于所有参与PDCCH盲检的小区,nCI_offset相同,如nCI_offset=0,当然,也可为其他数值。对于多小区调度是多个小区配置的
候选PDCCH个数之和,如:CELL-2配置L=4时,候选PDCCH为2,CELL-3配置L=4时,候选PDCCH为2,其他小区,L=4时,候选PDCCH均为0,则
上述示例中,对于CELL-2,两个候选PDCCH的编号;对于CELL-3,两个候选PDCCH的编号,图9示意出了CELL-2和CELL-3相应候选PDCCH和占用CCE。
下面对上述方法B的实现过程进行具体说明。
基站侧参数配置:
配置1:配置不同小区多小区调度搜索空间的候选PDCCH参数;
假设配置小区2和小区3的候选PDCCH的参数如下
CELL-2的配置参数(被调度小区);
nrofCandidates SEQUENCE{aggregationLevel4=n2//选择范围{n0,n1,n2,n3,n4,n5,n6,n8};
CELL-3的配置参数(被调度小区);
nrofCandidates SEQUENCE{aggregationLevel4=n2//选择范围{n0,n1,n2,n3,n4,n5,n6,n8}。
配置2:配置多小区调度的小区集合中,每个小区的对应编号cell_cn。其中上行调度和下行调度的小区集合可以相同,也可以不同;相应的,上行调度和下行调度的小区其对应编号可以相同,也可以不同。
终端侧行为:
根据基站配置的nrofCandidates参数和cell-n,确定小区对应的每个候选PDCCH占用的CCE;
方法如下:
下面是针对聚合等级为L,候选PDCCH编号时,计算CCE的方法:
对于公共搜索空间(CSS),为0,对于基于UE的搜索空间(USS),
Yp,-1=nRNTI≠0,Ap=39827(当pmod3=0),Ap=39829当(pmod3=1),Ap=39839(当pmod3=2)。另外参数D=65537;nRNTI是分配给UE的UE识别号(C-RNTI)。i=0,……,L-1;NCCE,P是CORESET p的CCEs的个数,数值为从0到NCCE,P-1;L表示聚合等级,nCI是做跨载波调度时,配置给UE的载波指示域信息,对于多载波调度,nCI由nCI_offset替代,表示载波指示域偏移信息(CCE索引的偏移信息),对于所有参与PDCCH盲检的小区,nCI_offset相同,如nCI_offset=0,当然,也可为其他数值。对于多小区调度是当前配置小区,聚合等级为L时的候选PDCCH数值,如:CELL-2配置L=4时,候选PDCCH为2,CELL-3配置L=4时,则
lastAllocatedCCEIndex是多小区调度中,上一个小区(以小区在多小区调度集合中的编号cell-n为顺序)分配的最后一个候选PDCCH(候选PDCCH标识最大的候选PDCCH)占用的最后一个CCE(编号最大的CCE)的索引;对于第一个小区(cell-n数值最小时),lastAllocatedCCEIndex=0。
如上例子所示,对于CELL-2,两个候选PDCCH的编号;对于CELL-3,两个候选PDCCH的编号,图10示意出了CELL-2和CELL-3相应候选PDCCH和占用CCE的效果图:
进一步的,对lastAllocatedCCEIndex增加后,进行取模,以便计算候选PDCCH的起始CCE时,不超过边界范围。具体如下:
需要说明的是,本实施例中的cell-n,可以是基站配置的服务小区ID,也可以是用于多载波调度配置的索引ID。这里不做限定。
另外,对于一个调度小区,支持不同调度集合时(如集合1:一个DCI调度的多个小区为CELL-1,CELL-2,CELL3;集合2:一个DCI调度的多个小区为,CELL-4,CELL-5,CELL-2),基站对不同的调度集合配置不同的搜索空间(如:SS_set1,SS_set2);对于被调度小区,配置搜索空间时,需要增加信元指示(如:关联多小区调度的search space ID),指示在调度小区上配置的相关联搜索空间(即关联到SS_set1,或者SS_set2)。
在一个调度集合中,如果基站的搜索空间配置导致一个相同的候选PDCCH被2个及两个以上小区做重复检测,只将该候选PDCCH计算到其中
一个小区上,方法如下:
假设小区为m,有候选PDCCH-x;小区为n,有候选PDCCH-y,且候选PDCCH-x和候选PDCCH-y相同(如:使用相同的聚合等级,占用相同的CCE,检测的DCI长度相同),且候选PDCCH-y已经计入小区n,则对于小区m,候选PDCCH-x不再进行检测,即候选PDCCH-x不计入小区m。
本公开实施例的方法,能够灵活配置候选PDCCH检测工作量到一个或者多个小区,即对于多小区调度的候选PDCCH盲检量,可以配置到调度小区,或者被调度小区,或者多个被调度小区,达到灵活配置灵活调度的目的。
如图11所示,本公开实施例还提供了一种物理下行控制信道检测方法,包括:
步骤1101:网络侧设备发送第一指示信息,所述第一指示信息用于指示执行PDCCH检测的小区信息,所述PDCCH检测用于检测第一下行控制信息DCI,所述第一DCI用于调度多个小区的传输数据。
本公开提供的另一个实施例中,所述第一指示信息包括小区的搜索空间参数。
本公开提供的另一个实施例中,在所述搜索空间参数中至少一个聚合等级的候选PDCCH个数大于0的情况下,所述第一指示信息用于指示所述搜索空间参数对应的小区为执行PDCCH检测的小区。
本公开提供的另一个实施例中,所述搜索空间参数包括CCE聚合等级,且不同的第一小区对应的CCE有不同的聚合等级,所述第一小区为执行PDCCH检测的小区。
本公开提供的另一个实施例中,所述搜索空间参数包括CCE聚合等级,所述方法还包括:
在至少两个第一小区对应的CCE聚合等级相同的情况下,发送第二指示信息;
其中,所述第二指示信息包括所述至少两个第一小区对应的候选PDCCH标识,或者,包括所述至少两个第一小区分别对应的候选PDCCH所占用的CCE的标识。
本公开提供的另一个实施例中,不同的第一小区对应的候选PDCCH标
识不同,且每个所述第一小区对应的CCE索引的偏移信息相同,所述偏移信息用于确定所述候选PDCCH的参考位置。
本公开提供的另一个实施例中,不同第一小区对应的候选PDCCH所占用的CCE的标识不同,每个所述第一小区对应的候选PDCCH所占用的CCE根据第一排序结果中位于所述第一小区之前的上一个第一小区对应的候选PDCCH所占用的CCE确定,所述第一排序结果是对所述至少两个第一小区按照预设顺序进行排序得到的。
需要说明的是,网络侧设备执行的物理下行控制信道检测方法是与上述终端执行的物理下行控制信道检测方法对应的方法,此处不再赘述。
本公开实施例中,网络侧设备发送第一指示信息,所述第一指示信息用于指示执行PDCCH检测的小区信息,所述PDCCH检测用于检测第一下行控制信息DCI,所述第一DCI用于调度多个小区的传输数据,终端根据该第一指示信息确定执行PDCCH检测的至少一个第一小区,并基于至少一个第一小区执行PDCCH检测,从而实现了在终端被配置用调度多个小区的传输数据的DCI时,执行PDCCH检测的目的。
如图12所示,本公开实施例提供了一种物理下行控制信道检测装置,应用于终端,包括存储器1220,收发机1200,处理器1210;
存储器1220,用于存储计算机程序;收发机1200,用于在所述处理器的控制下收发数据;处理器1210,用于读取所述存储器1220中的计算机程序并执行以下操作:
确定执行物理下行控制信道PDCCH检测的至少一个第一小区,所述PDCCH检测用于检测第一下行控制信息DCI,所述第一DCI用于调度多个小区的传输数据;
根据所述至少一个第一小区,执行PDCCH检测。
其中,在图12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1210代表的一个或多个处理器和存储器1220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。收发机1200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,这些传输介质包括,这些传输介质包括无线信道、有线信道、光缆等传输介质。针对不同的用户设备,用户接口1230还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器1210负责管理总线架构和通常的处理,存储器1220可以存储处理器1210在执行操作时所使用的数据。
可选的,处理器1210可以是CPU(中央处埋器)、ASIC(Application Specific Integrated Circuit,专用集成电路)、FPGA(Field-Programmable Gate Array,现场可编程门阵列)或CPLD(Complex Programmable Logic Device,复杂可编程逻辑器件),处理器也可以采用多核架构。
处理器通过调用存储器存储的计算机程序,用于按照获得的可执行指令执行本公开实施例提供的任一所述方法。处理器与存储器也可以物理上分开布置。
本公开提供的另一个实施例中,所述处理器执行所述程序时还实现以下步骤:
通过收发机获取第一指示信息,所述第一指示信息用于指示执行PDCCH检测的小区信息;
根据所述第一指示信息,确定执行PDCCH检测的至少一个第一小区。
本公开提供的另一个实施例中,所述第一指示信息包括小区的搜索空间参数。
本公开提供的另一个实施例中,所述处理器执行所述程序时还实现以下步骤:
在搜索空间参数中包含的至少一个聚合等级的候选PDCCH个数大于0的情况下,将该搜索空间参数对应的小区确定为所述第一小区。
本公开提供的另一个实施例中,所述处理器执行所述程序时还实现以下步骤:
确定每个所述第一小区对应的PDCCH检测时机和候选PDCCH信息,所述候选PDCCH信息包括控制信道单元CCE聚合等级和所述CCE聚合等级
对应的候选PDCCH的个数;
根据每个所述第一小区对应的PDCCH检测时机和候选PDCCH信息,执行PDCCH检测。
本公开提供的另一个实施例中,所述处理器执行所述程序时还实现以下步骤:
在所述第一小区为调度小区的情况下,根据所述调度小区的搜索空间参数,确定所述调度小区对应的PDCCH检测时机和候选PDCCH信息;
在所述第一小区为被调度小区的情况下,根据调度小区的搜索空间参数和所述被调度小区的搜索空间参数,确定所述被调度小区对应的PDCCH检测时机和候选PDCCH信息。
本公开提供的另一个实施例中,所述处理器执行所述程序时还实现以下步骤:
在至少两个第一小区的PDCCH检测时机重叠的情况下,按照第一选择方式,从所述至少两个小区中选择一个第一小区;
将重叠的所述PDCCH检测时机确定为选择的所述第一小区对应的PDCCH检测时机;
其中,所述第一选择方式包括:选择小区索引数值最大或最小的小区、选择调度小区、预设选择顺序中的一种或者多种。
本公开提供的另一个实施例中,不同的第一小区对应的CCE的聚合等级不同。
本公开提供的另一个实施例中,所述处理器执行所述程序时还实现以下步骤:
在至少两个第一小区对应的CCE聚合等级相同的情况下,根据第二指示信息,确定所述至少两个第一小区中的每个第一小区对应的候选PDCCH;
其中,所述第二指示信息包括:所述至少两个第一小区对应的候选PDCCH标识,或者,所述至少两个第一小区分别对应的候选PDCCH所占用的CCE的标识。
本公开提供的另一个实施例中,不同的第一小区对应的候选PDCCH标识不同,且每个所述第一小区对应的CCE索引的偏移信息相同,所述偏移信
息用于确定所述候选PDCCH的参考位置。
本公开提供的另一个实施例中,不同第一小区对应的候选PDCCH所占用的CCE的标识不同,每个所述第一小区对应的候选PDCCH所占用的CCE根据第一排序结果中位于所述第一小区之前的上一个第一小区对应的候选PDCCH所占用的CCE确定,所述第一排序结果是对所述至少两个第一小区按照预设顺序进行排序得到的。
在此需要说明的是,本发明实施例提供的上述装置,能够实现上述应用于终端的物理下行控制信道检测实施例所实现的所有方法步骤,且能够达到相同的技术效果,在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
如图13所示,本公开实施例还提供了一种物理下行控制信道检测装置,应用于网络侧设备,包括存储器1320,收发机1300,处理器1310;
存储器1320,用于存储计算机程序;收发机1300,用于在所述处理器的控制下收发数据;处理器1310,用于读取所述存储器中的计算机程序并执行以下操作:
通过收发机1300发送第一指示信息,所述第一指示信息用于指示执行PDCCH检测的小区信息,所述PDCCH检测用于检测第一下行控制信息DCI,所述第一DCI用于调度多个小区的传输数据。
本公开提供的另一个实施例中,所述第一指示信息包括小区的搜索空间参数。
本公开提供的另一个实施例中,在所述搜索空间参数中至少一个聚合等级的候选PDCCH个数大于0的情况下,所述第一指示信息用于指示所述搜索空间参数对应的小区为执行PDCCH检测的小区。
本公开提供的另一个实施例中,所述搜索空间参数包括CCE聚合等级,且不同的第一小区对应的CCE有不同的聚合等级,所述第一小区为执行PDCCH检测的小区。
本公开提供的另一个实施例中,所述搜索空间参数包括CCE聚合等级,所述处理器执行所述程序时还实现以下步骤:
在至少两个第一小区对应的CCE聚合等级相同的情况下,通过收发机发
送第二指示信息;
其中,所述第二指示信息包括所述至少两个第一小区对应的候选PDCCH标识,或者,包括所述至少两个第一小区分别对应的候选PDCCH所占用的CCE的标识。
本公开提供的另一个实施例中,不同的第一小区对应的候选PDCCH标识不同,且每个所述第一小区对应的CCE索引的偏移信息相同,所述偏移信息用于确定所述候选PDCCH的参考位置。
本公开提供的另一个实施例中,不同第一小区对应的候选PDCCH所占用的CCE的标识不同,每个所述第一小区对应的候选PDCCH所占用的CCE根据第一排序结果中位于所述第一小区之前的上一个第一小区对应的候选PDCCH所占用的CCE确定,所述第一排序结果是对所述至少两个第一小区按照预设顺序进行排序得到的。
其中,在图13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1310代表的一个或多个处理器和存储器1320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。收发机1300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,这些传输介质包括无线信道、有线信道、光缆等传输介质。处理器1310负责管理总线架构和通常的处理,存储器1320可以存储处理器1310在执行操作时所使用的数据。
处理器1310可以是中央处埋器(CPU)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现场可编程门阵列(Field-Programmable Gate Array,FPGA)或复杂可编程逻辑器件(Complex Programmable Logic Device,CPLD),处理器也可以采用多核架构。
在此需要说明的是,本发明实施例提供的上述装置,能够实现上述应用于网络侧设备的物理下行控制信道检测方法实施例所实现的所有方法步骤,且能够达到相同的技术效果,在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
如图14所示,本公开实施例还提供了一种物理下行控制信道检测装置,应用于终端,包括:
第一确定单元1401,用于确定执行物理下行控制信道PDCCH检测的至少一个第一小区,所述PDCCH检测用于检测第一下行控制信息DCI,所述第一DCI用于调度多个小区的传输数据;
第一检测单元1402,用于根据所述至少一个第一小区,执行PDCCH检测。
本公开提供的另一个实施例中,本公开实施例的装置还包括:
第一获取单元,用于获取第一指示信息,所述第一指示信息用于指示执行PDCCH检测的小区信息;
所述第一确定单元用于根据所述第一指示信息,确定执行PDCCH检测的至少一个第一小区。
本公开提供的另一个实施例中,所述第一指示信息包括小区的搜索空间参数。
本公开提供的另一个实施例中,所述第一确定单元用于在搜索空间参数中包含的至少一个聚合等级的候选PDCCH个数大于0的情况下,将该搜索空间参数对应的小区确定为所述第一小区。
本公开提供的另一个实施例中,本公开实施例的装置,还包括:
第二确定单元,用于确定每个所述第一小区对应的PDCCH检测时机和候选PDCCH信息,所述候选PDCCH信息包括控制信道单元CCE聚合等级和所述CCE聚合等级对应的候选PDCCH的个数;
本公开提供的另一个实施例中,所述第一检测单元用于根据每个所述第一小区对应的PDCCH检测时机和候选PDCCH信息,执行PDCCH检测。
本公开提供的另一个实施例中,所述第二确定单元用于:
在所述第一小区为调度小区的情况下,根据所述调度小区的搜索空间参数,确定所述调度小区对应的PDCCH检测时机和候选PDCCH信息;
和/或,在所述第一小区为被调度小区的情况下,根据调度小区的搜索空间参数和所述被调度小区的搜索空间参数,确定所述被调度小区对应的PDCCH检测时机和候选PDCCH信息。
本公开提供的另一个实施例中,所述第二确定单元包括:
第一选择子单元,用于在至少两个第一小区的PDCCH检测时机重叠的情况下,按照第一选择方式,从所述至少两个小区中选择一个第一小区;
第一确定子单元,用于将重叠的所述PDCCH检测时机确定为选择的所述第一小区对应的PDCCH检测时机;
其中,所述第一选择方式包括:选择小区索引数值最大或最小的小区、选择调度小区、预设选择顺序中的一种或者多种。
本公开提供的另一个实施例中,不同的第一小区对应的CCE的聚合等级不同。
本公开提供的另一个实施例中,所述第二确定单元用于在至少两个第一小区对应的CCE聚合等级相同的情况下,根据第二指示信息,确定所述至少两个第一小区中的每个第一小区对应的候选PDCCH;
其中,所述第二指示信息包括:所述至少两个第一小区对应的候选PDCCH标识,或者,所述至少两个第一小区分别对应的候选PDCCH所占用的CCE的标识。
本公开提供的另一个实施例中,不同的第一小区对应的候选PDCCH标识不同,且每个所述第一小区对应的CCE索引的偏移信息相同,所述偏移信息用于确定所述候选PDCCH的参考位置。
本公开提供的另一个实施例中,不同第一小区对应的候选PDCCH所占用的CCE的标识不同,每个所述第一小区对应的候选PDCCH所占用的CCE根据第一排序结果中位于所述第一小区之前的上一个第一小区对应的候选PDCCH所占用的CCE确定,所述第一排序结果是对所述至少两个第一小区按照预设顺序进行排序得到的。
在此需要说明的是,本发明实施例提供的上述装置,能够实现上述应用于终端的物理下行控制信道检测实施例所实现的所有方法步骤,且能够达到相同的技术效果,在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
如图15所示,本公开实施例还提供了一种物理下行控制信道检测装置,应用于网络侧设备,包括:
第一发送单元1501,用于发送第一指示信息,所述第一指示信息用于指示执行PDCCH检测的小区信息,所述PDCCH检测用于检测第一下行控制信息DCI,所述第一DCI用于调度多个小区的传输数据。
本公开提供的另一个实施例中,所述第一指示信息包括小区的搜索空间参数。
本公开提供的另一个实施例中,在所述搜索空间参数中至少一个聚合等级的候选PDCCH个数大于0的情况下,所述第一指示信息用于指示所述搜索空间参数对应的小区为执行PDCCH检测的小区。
本公开提供的另一个实施例中,所述搜索空间参数包括CCE聚合等级,且不同的第一小区对应的CCE有不同的聚合等级,所述第一小区为执行PDCCH检测的小区。
本公开提供的另一个实施例中,所述搜索空间参数包括CCE聚合等级,所述装置还包括:
第二发送单元,用于在至少两个第一小区对应的CCE聚合等级相同的情况下,发送第二指示信息;
其中,所述第二指示信息包括所述至少两个第一小区对应的候选PDCCH标识,或者,包括所述至少两个第一小区分别对应的候选PDCCH所占用的CCE的标识。
本公开提供的另一个实施例中,不同的第一小区对应的候选PDCCH标识不同,且每个所述第一小区对应的CCE索引的偏移信息相同,所述偏移信息用于确定所述候选PDCCH的参考位置。
本公开提供的另一个实施例中,不同第一小区对应的候选PDCCH所占用的CCE的标识不同,每个所述第一小区对应的候选PDCCH所占用的CCE根据第一排序结果中位于所述第一小区之前的上一个第一小区对应的候选PDCCH所占用的CCE确定,所述第一排序结果是对所述至少两个第一小区按照预设顺序进行排序得到的。
在此需要说明的是,本发明实施例提供的上述装置,能够实现上述应用于网络侧设备的物理下行控制信道检测方法实施例所实现的所有方法步骤,且能够达到相同的技术效果,在此不再对本实施例中与方法实施例相同的部
分及有益效果进行具体赘述。
需要说明的是,本公开实施例中对单元的划分是示意性的,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式。另外,在本公开各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个处理器可读取存储介质中。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或者该技术方案的全部或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中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)或处理器(processor)执行本公开各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
在本公开的一些实施例中,还提供了一种处理器可读存储介质,所述处理器可读存储介质存储有程序指令,所述程序指令用于使所述处理器执行实现以下步骤:
确定执行物理下行控制信道PDCCH检测的至少一个第一小区,所述PDCCH检测用于检测第一下行控制信息DCI,所述第一DCI用于调度多个小区的传输数据;根据所述至少一个第一小区,执行PDCCH检测;
或者,所述程序指令用于使所述处理器执行实现以下步骤:
发送第一指示信息,所述第一指示信息用于指示执行PDCCH检测的小区信息,所述PDCCH检测用于检测第一下行控制信息DCI,所述第一DCI用于调度多个小区的传输数据。
本公开实施例涉及的终端设备,可以是指向用户提供语音和/或数据连通性的设备,具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备等。在不同的系统中,终端设备的名称可能也不相同,例如在5G系统中,终端设备可以称为用户设备(User Equipment,UE)。无线终端设备
可以经无线接入网(Radio Access Network,RAN)与一个或多个核心网(Core Network,CN)进行通信,无线终端设备可以是移动终端设备,如移动电话(或称为“蜂窝”电话)和具有移动终端设备的计算机,例如,可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置,它们与无线接入网交换语言和/或数据。例如,个人通信业务(Personal Communication Service,PCS)电话、无绳电话、会话发起协议(Session Initiated Protocol,SIP)话机、无线本地环路(Wireless Local Loop,WLL)站、个人数字助理(Personal Digital Assistant,PDA)等设备。无线终端设备也可以称为系统、订户单元(subscriber unit)、订户站(subscriber station),移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)、用户代理(user agent)、用户装置(user device),本公开实施例中并不限定。
本公开实施例涉及的网络设备(即上述网络侧设备),可以是基站,该基站可以包括多个为终端提供服务的小区。根据具体应用场合不同,基站又可以称为接入点,或者可以是接入网中在空中接口上通过一个或多个扇区与无线终端设备通信的设备,或者其它名称。网络设备可用于将收到的空中帧与网际协议(Internet Protocol,IP)分组进行相互更换,作为无线终端设备与接入网的其余部分之间的路由器,其中接入网的其余部分可包括网际协议(IP)通信网络。网络设备还可协调对空中接口的属性管理。例如,本公开实施例涉及的网络设备可以是全球移动通信系统(Global System for Mobile communications,GSM)或码分多址接入(Code Division Multiple Access,CDMA)中的网络设备(Base Transceiver Station,BTS),也可以是带宽码分多址接入(Wide-band Code Division Multiple Access,WCDMA)中的网络设备(NodeB),还可以是长期演进(Long Term Evolution,LTE)系统中的演进型网络设备(evolutional Node B,eNB或e-NodeB)、5G网络架构(next generation system)中的5G基站(gNB),也可以是家庭演进基站(Home evolved Node B,HeNB)、中继节点(relay node)、家庭基站(femto)、微微基站(pico)等,本公开实施例中并不限定。在一些网络结构中,网络设备可以包括集中单元(Centralized Unit,CU)节点和分布单元(Distributed Unit,DU)节点,
集中单元和分布单元也可以地理上分开布置。
网络设备与终端设备之间可以各自使用一或多根天线进行多输入多输出(Multi Input Multi Output,MIMO)传输,MIMO传输可以是单用户MIMO(Single User MIMO,SU-MIMO)或多用户MIMO(Multiple User MIMO,MU-MIMO)。根据根天线组合的形态和数量,MIMO传输可以是2D-MIMO、3D-MIMO、FD-MIMO或massive-MIMO,也可以是分集传输或预编码传输或波束赋形传输等。
本领域内的技术人员应明白,本公开的实施例可提供为方法、系统、或计算机程序产品。因此,本公开可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本公开可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本公开是参照根据本公开实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机可执行指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机可执行指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些处理器可执行指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的处理器可读存储器中,使得存储在该处理器可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些处理器可执行指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
需要说明的是,应理解以上各个模块的划分仅仅是一种逻辑功能的划分,
实际实现时可以全部或部分集成到一个物理实体上,也可以物理上分开。且这些模块可以全部以软件通过处理元件调用的形式实现;也可以全部以硬件的形式实现;还可以部分模块通过处理元件调用软件的形式实现,部分模块通过硬件的形式实现。例如,确定模块可以为单独设立的处理元件,也可以集成在上述装置的某一个芯片中实现,此外,也可以以程序代码的形式存储于上述装置的存储器中,由上述装置的某一个处理元件调用并执行以上确定模块的功能。其它模块的实现与之类似。此外这些模块全部或部分可以集成在一起,也可以独立实现。这里所述的处理元件可以是一种集成电路,具有信号的处理能力。在实现过程中,上述方法的各步骤或以上各个模块可以通过处理器元件中的硬件的集成逻辑电路或者软件形式的指令完成。
例如,各个模块、单元、子单元或子模块可以是被配置成实施以上方法的一个或多个集成电路,例如:一个或多个特定集成电路(Application Specific Integrated Circuit,ASIC),或,一个或多个微处理器(digital signal processor,DSP),或,一个或者多个现场可编程门阵列(Field Programmable Gate Array,FPGA)等。再如,当以上某个模块通过处理元件调度程序代码的形式实现时,该处理元件可以是通用处理器,例如中央处理器(Central Processing Unit,CPU)或其它可以调用程序代码的处理器。再如,这些模块可以集成在一起,以片上系统(system-on-a-chip,SOC)的形式实现。
本公开的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便这里描述的本公开的实施例,例如除了在这里图示或描述的那些以外的顺序实施。此外,术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。此外,说明书以及权利要求中使用“和/或”表示所连接对象的至少其中之一,例如A和/或B和/或C,表示包含单独A,单独B,单独C,以及A和B都存在,B和C都存在,A和C都存在,以及A、B和C都存在的7种情况。类似地,本说明书以及权利要求中使用“A和B中的
至少一个”应理解为“单独A,单独B,或A和B都存在”。
显然,本领域的技术人员可以对本公开进行各种改动和变型而不脱离本公开的精神和范围。这样,倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内,则本公开也意图包含这些改动和变型在内。
Claims (29)
- 一种物理下行控制信道检测方法,包括:终端确定执行物理下行控制信道PDCCH检测的至少一个第一小区,所述PDCCH检测用于检测第一下行控制信息DCI,第一DCI用于调度多个小区的传输数据;所述终端根据所述至少一个第一小区,执行PDCCH检测;其中,所述执行PDCCH检测为:将所述PDCCH检测的检测任务计算到所述至少一个第一小区。
- 根据权利要求1所述的方法,其中,还包括:获取第一指示信息,所述第一指示信息用于指示执行PDCCH检测的小区信息;所述终端确定执行物理下行控制信道PDCCH检测的至少一个第一小区,包括:根据所述第一指示信息,确定执行PDCCH检测的至少一个第一小区。
- 根据权利要求2所述的方法,其中,所述第一指示信息包括小区的搜索空间参数。
- 根据权利要求3所述的方法,其中,所述根据第一指示信息,确定执行PDCCH检测的至少一个第一小区,包括:在搜索空间参数中包含的至少一个聚合等级的候选PDCCH个数大于0的情况下,将该搜索空间参数对应的小区确定为所述第一小区。
- 根据权利要求1所述的方法,还包括:确定每个所述第一小区对应的PDCCH检测时机和候选PDCCH信息,所述候选PDCCH信息包括控制信道单元CCE聚合等级和所述CCE聚合等级对应的候选PDCCH的个数;所述终端根据所述至少一个第一小区,执行PDCCH检测,包括:根据每个所述第一小区对应的PDCCH检测时机和候选PDCCH信息,执行PDCCH检测。
- 根据权利要求5所述的方法,其中,确定每个所述第一小区对应的 PDCCH检测时机和候选PDCCH信息,包括:在所述第一小区为调度小区的情况下,根据所述调度小区的搜索空间参数,确定所述调度小区对应的PDCCH检测时机和候选PDCCH信息;在所述第一小区为被调度小区的情况下,根据调度小区的搜索空间参数和所述被调度小区的搜索空间参数,确定所述被调度小区对应的PDCCH检测时机和候选PDCCH信息。
- 根据权利要求5所述的方法,其中,确定每个所述第一小区对应的PDCCH检测时机,包括:在至少两个第一小区的PDCCH检测时机重叠的情况下,按照第一选择方式,从所述至少两个小区中选择一个第一小区;将重叠的所述PDCCH检测时机确定为选择的所述第一小区对应的PDCCH检测时机;其中,所述第一选择方式包括:选择小区索引数值最大或最小的小区、选择调度小区、预设选择顺序中的一种或者多种。
- 根据权利要求5所述的方法,其中,不同的第一小区对应的CCE的聚合等级不同。
- 根据权利要求5所述的方法,其中,确定每个所述第一小区对应的候选PDCCH信息,包括:在至少两个第一小区对应的CCE聚合等级相同的情况下,根据第二指示信息,确定所述至少两个第一小区中的每个第一小区对应的候选PDCCH;其中,所述第二指示信息包括:所述至少两个第一小区对应的候选PDCCH标识,或者,所述至少两个第一小区分别对应的候选PDCCH所占用的CCE的标识。
- 根据权利要求9所述的方法,其中,不同的第一小区对应的候选PDCCH标识不同,且每个所述第一小区对应的CCE索引的偏移信息相同,所述偏移信息用于确定所述候选PDCCH的参考位置。
- 根据权利要求9所述的方法,其中,不同第一小区对应的候选PDCCH所占用的CCE的标识不同,每个所述第一小区对应的候选PDCCH所占用的CCE根据第一排序结果中位于所述第一小区之前的上一个第一小区对应的候 选PDCCH所占用的CCE确定,所述第一排序结果是对所述至少两个第一小区按照预设顺序进行排序得到的。
- 一种物理下行控制信道检测方法,其中,包括:网络侧设备发送第一指示信息,所述第一指示信息用于指示执行PDCCH检测的小区信息,所述PDCCH检测用于检测第一下行控制信息DCI,第一DCI用于调度多个小区的传输数据。
- 根据权利要求12所述的方法,其中,所述第一指示信息包括小区的搜索空间参数。
- 根据权利要求13所述的方法,其中,在所述搜索空间参数中至少一个聚合等级的候选PDCCH个数大于0的情况下,所述第一指示信息用于指示所述搜索空间参数对应的小区为执行PDCCH检测的小区。
- 根据权利要求13所述的方法,其中,所述搜索空间参数包括CCE聚合等级,且不同的第一小区对应的CCE有不同的聚合等级,所述第一小区为执行PDCCH检测的小区。
- 根据权利要求13所述的方法,其中,所述搜索空间参数包括CCE聚合等级;所述方法还包括:在至少两个第一小区对应的CCE聚合等级相同的情况下,发送第二指示信息;其中,所述第二指示信息包括所述至少两个第一小区对应的候选PDCCH标识,或者,包括所述至少两个第一小区分别对应的候选PDCCH所占用的CCE的标识。
- 一种物理下行控制信道检测装置,其中,应用于终端,所述装置包括存储器,收发机,处理器;存储器,用于存储计算机程序;收发机,用于在所述处理器的控制下收发数据;处理器,用于读取所述存储器中的计算机程序并执行以下操作:确定执行物理下行控制信道PDCCH检测的至少一个第一小区,所述PDCCH检测用于检测第一下行控制信息DCI,第一DCI用于调度多个小区 的传输数据;根据所述至少一个第一小区,执行PDCCH检测;其中,所述执行PDCCH检测为:将所述PDCCH检测的检测任务计算到所述至少一个第一小区。
- 根据权利要求17所述的装置,其中,所述处理器执行所述程序时还实现以下步骤:通过收发机获取第一指示信息,所述第一指示信息用于指示执行PDCCH检测的小区信息;根据所述第一指示信息,确定执行PDCCH检测的至少一个第一小区。
- 根据权利要求18所述的装置,其中,所述第一指示信息包括小区的搜索空间参数。
- 根据权利要求19所述的装置,其中,所述处理器执行所述程序时还实现以下步骤:在搜索空间参数中包含的至少一个聚合等级的候选PDCCH个数大于0的情况下,将该搜索空间参数对应的小区确定为所述第一小区。
- 根据权利要求17所述的装置,其中,所述处理器执行所述程序时还实现以下步骤:确定每个所述第一小区对应的PDCCH检测时机和候选PDCCH信息,所述候选PDCCH信息包括控制信道单元CCE聚合等级和所述CCE聚合等级对应的候选PDCCH的个数;根据每个所述第一小区对应的PDCCH检测时机和候选PDCCH信息,执行PDCCH检测。
- 根据权利要求21所述的装置,其中,所述处理器执行所述程序时还实现以下步骤:在所述第一小区为调度小区的情况下,根据所述调度小区的搜索空间参数,确定所述调度小区对应的PDCCH检测时机和候选PDCCH信息;在所述第一小区为被调度小区的情况下,根据调度小区的搜索空间参数和所述被调度小区的搜索空间参数,确定所述被调度小区对应的PDCCH检测时机和候选PDCCH信息。
- 根据权利要求21所述的装置,其中,所述处理器执行所述程序时还实现以下步骤:在至少两个第一小区的PDCCH检测时机重叠的情况下,按照第一选择方式,从所述至少两个小区中选择一个第一小区;将重叠的所述PDCCH检测时机确定为选择的所述第一小区对应的PDCCH检测时机;其中,所述第一选择方式包括:选择小区索引数值最大或最小的小区、选择调度小区、预设选择顺序中的一种或者多种。
- 根据权利要求21所述的装置,其中,不同的第一小区对应的CCE的聚合等级不同。
- 根据权利要求21所述的装置,其中,所述处理器执行所述程序时还实现以下步骤:在至少两个第一小区对应的CCE聚合等级相同的情况下,根据第二指示信息,确定所述至少两个第一小区中的每个第一小区对应的候选PDCCH;其中,所述第二指示信息包括:所述至少两个第一小区对应的候选PDCCH标识,或者,所述至少两个第一小区分别对应的候选PDCCH所占用的CCE的标识。
- 一种物理下行控制信道检测装置,其中,应用于网络侧设备,所述装置包括存储器,收发机,处理器;存储器,用于存储计算机程序;收发机,用于在所述处理器的控制下收发数据;处理器,用于读取所述存储器中的计算机程序并执行以下操作:通过收发机发送第一指示信息,所述第一指示信息用于指示执行PDCCH检测的小区信息,所述PDCCH检测用于检测第一下行控制信息DCI,第一DCI用于调度多个小区的传输数据。
- 一种物理下行控制信道检测装置,其中,应用于终端,所述装置包括:第一确定单元,用于确定执行物理下行控制信道PDCCH检测的至少一个第一小区,所述PDCCH检测用于检测第一下行控制信息DCI,第一DCI用于调度多个小区的传输数据;第一检测单元,用于根据所述至少一个第一小区,执行PDCCH检测。
- 一种物理下行控制信道检测装置,其中,应用于网络侧设备,所述装置包括:第一发送单元,用于发送第一指示信息,所述第一指示信息用于指示执行PDCCH检测的小区信息,所述PDCCH检测用于检测第一下行控制信息DCI,第一DCI用于调度多个小区的传输数据。
- 一种处理器可读存储介质,其中,所述处理器可读存储介质存储有程序指令,所述程序指令用于使所述处理器执行如权利要求1至11中任一项所述的物理下行控制信道检测方法的步骤,或者执行如权利要求12至16中任一项所述的物理下行控制信道检测方法的步骤。
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