WO2021147695A1 - 一种信息调度方法、装置、设备和存储介质 - Google Patents
一种信息调度方法、装置、设备和存储介质 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
- H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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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
- H04L5/0091—Signaling for the administration of the divided 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
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
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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
- H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
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- H—ELECTRICITY
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Definitions
- This application relates to communications, and in particular to an information scheduling method, device, equipment, and storage medium.
- one Downlink Control Information can only schedule a Physical Downlink Shared Channel (PDSCH) on one carrier at a time. If the PDSCH is scheduled on multiple carriers, the base station needs to issue multiple DCIs, which results in a high load on the 5G system to transmit control signaling.
- DCI Downlink Control Information
- the embodiments of the present application provide an information scheduling method, device, equipment, and storage medium, which reduce the load of the 5G communication system to transmit control signaling.
- the embodiment of the present application provides an information scheduling method, which is applied to a first communication node, and includes:
- the PDSCH scheduling information on at least one carrier is determined according to the PDSCH configuration information and the DCI.
- the embodiment of the present application provides an information scheduling method, which is applied to a second communication node, and includes:
- An embodiment of the present application provides an information scheduling device, which is applied to a first communication node, and includes:
- the first receiving module is configured to receive physical downlink shared channel PDSCH configuration information sent by the second communication node;
- the second receiving module is configured to receive the downlink control information DCI issued by the second communication node;
- the first determining module is configured to determine PDSCH scheduling information on at least one carrier according to the PDSCH configuration information and the DCI.
- An embodiment of the present application provides an information scheduling device, which is applied to a second communication node, and includes:
- a first sending module configured to send predetermined physical downlink shared channel PDSCH configuration information to the first communication node
- a second determining module configured to determine downlink control information DCI for scheduling PDSCH on at least one carrier according to the PDSCH configuration information
- the second sending module is configured to send the downlink control information to the first communication node.
- An embodiment of the present application provides a device, including: a memory, and one or more processors;
- the memory is used to store one or more programs
- the one or more processors When the one or more programs are executed by the one or more processors, the one or more processors implement the method described in any one of the foregoing embodiments.
- An embodiment of the present application provides a storage medium that stores a computer program, and when the computer program is executed by a processor, the method described in any of the foregoing embodiments is implemented.
- Fig. 1 is a flowchart of an information scheduling method provided by an embodiment of the present application
- FIG. 2 is a flowchart of another information scheduling method provided by an embodiment of the present application.
- FIG. 3 is a schematic diagram of scheduling that meets a preset time between PDCCH and PDSCH according to an embodiment of the present application
- Fig. 4 is a structural block diagram of an information scheduling device provided by an embodiment of the present application.
- Fig. 5 is a structural block diagram of another information scheduling device provided by an embodiment of the present application.
- Fig. 6 is a schematic structural diagram of a device provided by an embodiment of the present application.
- DCI format 1_0 and DCI format 1_1 are used to schedule PDSCH on one carrier.
- the newly introduced DCI format 1_2 in the Release 16 (Release 16, R16) protocol of 3GPP can only be used to schedule PDSCH on one carrier.
- the base station needs to send multiple DCIs, which results in a high load on the 5G system to transmit control signaling. Reducing the resource load of control signaling, especially the resource load occupied by DCI, can improve the utilization efficiency of 5G system resources.
- the UE allocates less energy to detect the DCI, thereby helping the user equipment (User Equipment, UE) to save energy.
- Radio Resource Control configures carriers for self-scheduling or cross-carrier scheduling.
- Self-scheduling that is, receiving DCI on the current carrier and scheduling the PDSCH on the current carrier
- cross-carrier scheduling that is, receiving DCI on one carrier and scheduling the PDSCH on another carrier.
- RRC configures a carrier (denoted as carrier C) for cross-carrier scheduling
- RRC configures the scheduling carrier of carrier C (that is, which carrier schedules carrier C) and configures the carrier indicator field (Carrier Indicator Field, CIF) corresponding to carrier C )index.
- the CIF field in the DCI indicates the CIF index.
- Cross-carrier scheduling is configured by the RRC cross-carrier scheduling configuration (CrossCarrierSchedulingConfig) cell
- the scheduling cell Id (schedulingCellId) cell in the CrossCarrierSchedulingConfig cell configures the carrier index of the scheduling carrier
- the cell scheduling CIF index (cif-InSchedulingCell) cell in the CrossCarrierSchedulingConfig cell is configured by the RRC cross-carrier scheduling configuration (CrossCarrierSchedulingConfig) cell
- the scheduling cell Id (schedulingCellId) cell in the CrossCarrierSchedulingConfig cell configures the carrier index of the scheduling carrier
- the cell scheduling CIF index (cif-InSchedulingCell) cell in the CrossCarrierSchedulingConfig cell configures the carrier index of the scheduling carrier
- the cell scheduling CIF index (cif-InSchedulingCell) cell in the CrossCarrierSchedulingConfig cell is configured by the RRC cross-carrier scheduling
- the RRC configuration carrier C is cross-carrier scheduled by carrier A and the CIF index corresponding to the configuration carrier C is 1, when the CIF field in the DCI on carrier A indicates that the CIF index is 1, this DCI schedules PDSCH on carrier C.
- the CIF domain cannot be configured in DCI format 1_0, that is, DCI format 1_0 can only be used for self-scheduling and cannot be used for cross-carrier scheduling; DCI format 1_1 and DCI format 1_2 can be configured with CIF domain, that is, it can be used for cross-carrier scheduling. Carrier scheduling.
- DCI format 1_0, DCI format 1_1, and DCI format 1_2 are used to schedule the PDSCH on this carrier; when the RRC configured carrier is cross-carrier scheduling, the DCI (DCI The CIF domain of format 1_1 and DCI format 1_2) can only indicate one CIF index per scheduling, and one CIF index can only correspond to one carrier. In the case of cross-carrier scheduling, DCI format 1_1 and DCI format 1_2 can only schedule PDSCH on one carrier each time. If the base station wants to schedule the PDSCH on multiple carriers, the base station needs to send multiple DCIs, which results in a high load for the 5G system to transmit control signaling.
- the base station needs to indicate the time slot offset K 0 , the start length indicator value (SLIV), and the PDSCH mapping type to determine the time slot and symbol where the scheduled PDSCH is located.
- the RRC configures one or more PDSCH time domain resource allocation (Time Domain Resource Allocation) information elements in the PDSCH Time Domain Resource Allocation List (Time Domain Resource Allocation List) information elements.
- the PDSCH time domain resource allocation information element is indicated by PDSCH-TimeDomainResourceAllocation.
- the Time Domain Resource Allocation (Time Domain Resource Allocation) cell of each PDSCH includes cell k0, mappingType and Start Length Indicator Value, where k0 indicates the K 0 of the PDSCH and mappingType indicates the PDSCH The type of mapping, Start Length Indicator Value indicates the SLIV of the PDSCH.
- the Time Domain Resource Assignment (TDRA) field in DCI indicates the TDRA index.
- TDRA index 0 corresponds to the first PDSCH-TimeDomainResourceAllocation in the PDSCH-TimeDomainResourceAllocationList cell
- TDRA index 1 corresponds to the first PDSCH-TimeDomainResourceAllocationList cell. Two PDSCH-TimeDomainResourceAllocation, and so on. Therefore, the UE can determine the K 0 , SLIV and PDSCH mapping types of the scheduled PDSCH according to the TDRA index indicated by the TDRA field in the DCI to determine the time slot and symbol of the PDSCH.
- the DCI can only indicate one K 0 , one SLIV and one PDSCH mapping type through the TDRA field during each scheduling, it is restricted that one DCI can only schedule PDSCH on one carrier at a time. If the base station wants to schedule the PDSCH on multiple carriers, the base station needs to send multiple DCIs, which results in a high load for the 5G system to transmit control signaling.
- FIG. 1 is a flowchart of an information scheduling method provided in an embodiment of the present application. This embodiment is applied to the first communication node.
- the first communication node is a UE. As shown in Figure 1, this embodiment includes S110-S130.
- the second communication node may be a base station and a network side (for example, the network side may be a core network).
- the PDSCH configuration information is used to configure the PDSCH scheduling information of the DCI on at least one carrier for the second communication node and the first communication node.
- DCI includes various domains, for example, DCI includes: CIF domain, TDRA domain, and so on.
- the PDSCH configuration information is to configure specific parameters for the information indicated in the CIF field and/or TDRA field in the DCI.
- S130 Determine PDSCH scheduling information on at least one carrier according to PDSCH configuration information and DCI.
- the PDSCH scheduling information on each carrier can be determined according to the PDSCH configuration information and the information indicated by different fields in the DCI.
- the scheduling information includes at least the following items: the number of currently scheduled carriers, time domain resource indication information, the currently scheduled PDSCH carrier, and the currently scheduled PDSCH CIF index.
- the number of carriers currently scheduled refers to the number of carriers currently scheduled by DCI.
- the number of currently scheduled carriers may be one or more.
- the time domain resource indication information refers to relevant information about the time domain resources occupied by the PDSCH currently scheduled by the DCI.
- the carrier where the PDSCH is currently scheduled refers to the carrier index where the PDSCH is currently scheduled by DCI.
- RRC signaling configures five carriers, and the carrier indexes are carrier 1, carrier 2, carrier 3, carrier 4, and carrier 5, and the current scheduling
- the carriers of the PDSCH are Carrier 2 and Carrier 3, and the carriers currently scheduled for PDSCH refer to Carrier 2 and Carrier 3.
- the CIF index of the current scheduled PDSCH refers to the CIF index corresponding to the carrier where the DCI currently schedules the PDSCH, that is, there is a mapping relationship between the CIF index and the carrier where the current PDSCH is located.
- the PDSCH configuration information includes: the total number of carriers that can be scheduled by DCI M; the radio network temporary identifier (RNTI) used to indicate that DCI currently schedules PDCSH on one or N carriers, where N is A positive integer greater than 1 and N less than or equal to M.
- RNTI radio network temporary identifier
- the total number of carriers that can be scheduled by DCI refers to the number of total carriers that can be used for scheduling by DCI configured by RRC signaling; DCI currently schedules one or N carriers, which are subordinates of the total carriers that can be scheduled by DCI.
- Set, that is, N is less than or equal to the total number of carriers that can be scheduled by DCI.
- the PDSCH configuration information includes: a mapping relationship between CIF indexes and carriers, and each CIF index is mapped to at least one carrier.
- the CIF index may establish a mapping relationship with one or more carriers, that is, a mapping relationship is established between the CIF index and each carrier currently scheduled by DCI, and the PDSCH sent by the second communication node is received at the first communication node. After configuring the information, the PDSCH on which carrier is currently scheduled by DCI can be determined.
- the second communication node configures the mapping relationship between the CIF index and the carrier, and notifies the first communication node of the mapping relationship between the CIF index and the carrier through RRC signaling.
- the CIF field in the DCI indicates the CIF index
- the carrier mapped by the CIF index is the carrier where the DCI currently schedules PDCSH
- DCI is used to schedule PDCSH on N carriers, and one PDSCH is scheduled on each carrier, and N is a positive integer greater than 1.
- the DCI is used to schedule PDCSH on one carrier.
- the first communication node determines the CIF index in the CIF domain through the PDSCH configuration information, so as to determine the carrier index currently scheduled by the DCI.
- only one PDSCH can be scheduled on each carrier.
- DCI can directly schedule the PDSCH on multiple carriers, and one PDSCH can be scheduled on each carrier. In this way, the PDSCH on one or more carriers can be scheduled through the PDSCH configuration information, and the load of transmitting control signaling is reduced.
- the PDSCH configuration information includes: a mapping relationship between a TDRA index and at least one set of time domain resource indication information, and each set of time domain resource indication information includes: slot offset K 0 , SLIV, and PDSCH mapping type .
- each group of time domain resource indication information includes the same K 0 .
- each group of time domain resource indication information includes the same SLIV.
- the PDSCH configuration information further includes: a mapping relationship between each group of time domain resource indication information and carriers.
- the TDRA field in the DCI indicates the TDRA index
- DCI is used to schedule PDSCH on the carriers corresponding to the N sets of time domain resource indication information, and one PDSCH is scheduled on each carrier, and N is a positive value greater than 1.
- the DCI is used to schedule the PDSCH on the carrier corresponding to the set of time domain resource indication information.
- the second communication node notifies the first communication node of the mapping relationship between the TDRA index and at least one set of time domain resource indication information, and notifies the mapping relationship between each set of time domain resource indication information and the carrier.
- the DCI can be determined according to the mapping relationship between the TDRA index and the time domain resource indication information, and the mapping relationship between each group of time domain resource indication information and the carrier The index of the currently scheduled carrier.
- DCI schedules PDSCH on the carriers corresponding to at least two sets of time domain resource indication information
- one PDSCH is scheduled on each carrier;
- TDRA index is mapped to one set of time domain resource indication information, DCI is in the group time
- the PDSCH is scheduled on the carrier corresponding to the domain resource indication information.
- the CIF field and the TDRA field in the DCI jointly indicate the TDRA index.
- the TDRA index can be indicated by the bits occupied by the CIF domain and the corresponding decimal value, and the bits occupied by the TDRA domain and the corresponding decimal value.
- the CIF field in the DCI indicates the CIF index, and the CIF index is mapped to at least one carrier;
- the TDRA field in the DCI indicates the TDRA index;
- DCI is used to schedule PDSCH on N carriers, and One PDSCH is scheduled on each carrier, and N is a positive integer greater than 1;
- the DCI is used to schedule the PDSCH on one carrier.
- the second communication node notifies the first communication node of the mapping relationship between the TDRA index and at least one set of time domain resource indication information, and the CIF index indicated by the CIF field in the DCI is mapped to at least one carrier. If the CIF index indicated by the CIF field in DCI is mapped to at least two carriers, and the TDRA index indicated by the TDRA field in DCI is mapped to at least two sets of time domain resource indication information, DCI schedules PDSCH on at least two carriers, And one PDSCH is scheduled on each carrier.
- the DCI schedules the PDSCH on this carrier.
- the number of groups of time domain resource indication information mapped by the TDRA index indicated by the TDRA field in the DCI is equal to the number of carriers mapped by the CIF index indicated by the CIF field in the DCI.
- the number of carriers mapped by the CIF index is also N. Among them, N is a positive integer greater than 1.
- the CIF field in the DCI is used to indicate the CIF index, and the CIF index is mapped to a carrier with a CIF index of i; when the TDRA index indicated by the TDRA field in the DCI is mapped to N sets of time domain resource indication information, the DCI
- the PDSCH is scheduled on N carriers whose CIF indexes are i mod M, (i+1) mod M...(i+N-1) mod M, and one PDSCH is scheduled on each carrier; M is DCI schedulable
- the total number of carriers, N is a positive integer greater than 1, and mod is the remainder operation.
- the DCI indicates two CIF domains, and each CIF domain indicates a CIF index, and each CIF index is mapped to a carrier.
- the RRC configures multiple carriers for the first communication node, and establishes a mapping relationship between each carrier and the CIF index, that is, one CIF index is mapped to one carrier.
- the carrier on which the PDSCH is currently scheduled can be determined according to the CIF index indicated by each CIF domain and the mapping relationship between the CIF index and the carrier.
- the PDSCH configuration information includes: a mapping relationship between a CIF index and two sets of carriers, the first set of carriers includes one carrier, and the second set of carriers includes at least one carrier.
- the DCI when the CIF index corresponds to the first group of carriers, the DCI is used to schedule the PDSCH on a carrier mapped by the CIF index in the first group of carriers;
- the DCI is used to schedule PDSCH on at least one carrier mapped by the CIF index in the second group of carriers, and one PDSCH is scheduled on each carrier.
- the second communication node notifies the first communication node of the mapping relationship between the CIF index and the two sets of carriers.
- the second communication node notifies the first communication node whether the CIF index in the current DCI corresponds to the first group of carriers or the second group of carriers.
- the CIF index in the CIF domain maps a carrier in the first group of carriers, and the DCI schedules the PDSCH on this carrier.
- the CIF index in the DCI corresponds to the second group of carriers
- the CIF index in the CIF domain maps at least one carrier in the second group of carriers, and the DCI schedules the PDSCH on the at least one carrier.
- the DCI schedules PDSCH on N carriers, and schedules one PDSCH on each carrier, and N is a positive integer greater than 1.
- PDSCH configuration information comprises: time domain resource indication information; K in the time domain resource instruction information 0 equal to 0, K 0 is used to indicate the time scheduled PDSCH on each carrier with a corresponding physical downlink control The first time slot between channels (Physical Downlink Control CHannel, PDCCH) that meets the preset time.
- K 0 is equal to 0 can be re-interpreted, that is, different carriers have different interpretations of K 0 equal to 0, so as to meet the requirements of the schedule between the PDSCH scheduling time on each carrier and the corresponding PDCCH Set time to improve scheduling flexibility and reduce scheduling delay.
- Fig. 2 is a flowchart of another information scheduling method provided by an embodiment of the present application.
- This embodiment is applied to the second communication node.
- the second communication node may be a base station or a network side (core network).
- this embodiment includes S210-S230.
- S210 Send predetermined PDSCH configuration information to the first communication node.
- S220 Determine the DCI used to schedule PDSCH on at least one carrier according to the PDSCH configuration information.
- the PDSCH configuration information includes: the total number of schedulable carriers M for DCI; it is used to indicate that the DCI currently schedules PDCSH on one or N carriers.
- the radio network temporary identifier RNTI, N is a positive integer greater than 1, and N Less than or equal to M.
- the PDSCH configuration information includes: a mapping relationship between a carrier indicator field CIF index and a carrier, and each CIF index is mapped to at least one carrier.
- the CIF field in the DCI indicates the CIF index
- the carrier mapped by the CIF index is the carrier where the DCI currently schedules PDCSH
- DCI is used to schedule PDCSH on N carriers, and one PDSCH is scheduled on each carrier, and N is a positive integer greater than 1.
- the DCI is used to schedule PDCSH on one carrier.
- the PDSCH configuration information includes: the mapping relationship between the time domain resource allocation TDRA index and at least one group of time domain resource indication information, and each group of time domain resource indication information includes: slot offset K 0 , starting point The length indicates the SLIV and PDSCH mapping type.
- each group of time domain resource indication information includes the same K 0 .
- each group of time domain resource indication information includes the same SLIV.
- the PDSCH configuration information further includes: a mapping relationship between each group of time domain resource indication information and carriers.
- the TDRA field in the DCI indicates the TDRA index
- DCI is used to schedule PDSCH on the carriers corresponding to the N sets of time domain resource indication information, and one PDSCH is scheduled on each carrier, and N is a positive value greater than 1.
- the DCI is used to schedule the PDSCH on the carrier corresponding to the set of time domain resource indication information.
- the CIF field and the TDRA field in the DCI jointly indicate the TDRA index.
- the CIF field in the DCI indicates the CIF index, and the CIF index is mapped to at least one carrier;
- the TDRA field in the DCI indicates the TDRA index;
- DCI is used to schedule PDSCH on N carriers, and One PDSCH is scheduled on each carrier, and N is a positive integer greater than 1;
- the DCI is used to schedule the PDSCH on one carrier.
- the number of groups of time domain resource indication information mapped by the TDRA index indicated by the TDRA field in the DCI is equal to the number of carriers mapped by the CIF index indicated by the CIF field in the DCI.
- the CIF field in the DCI is used to indicate the CIF index, and the CIF index is mapped to a carrier with a CIF index of i;
- the CIF index of the DCI is i mod M, (i+1) mod M...(i+N-1) mod M PDSCH is scheduled on N carriers of, and one PDSCH is scheduled on each carrier; M is the total number of carriers that can be scheduled by DCI, N is a positive integer greater than 1, and mod is the remainder operation.
- the DCI indicates two CIF domains, and each CIF domain indicates a CIF index, and each CIF index is mapped to a carrier.
- the PDSCH configuration information includes: a mapping relationship between a CIF index and two sets of carriers, the first set of carriers includes one carrier, and the second set of carriers includes at least one carrier.
- the DCI when the CIF index corresponds to the first group of carriers, the DCI is used to schedule the PDSCH on a carrier mapped by the CIF index in the first group of carriers;
- the DCI is used to schedule PDSCH on at least one carrier mapped by the CIF index in the second group of carriers, and one PDSCH is scheduled on each carrier.
- PDSCH configuration information comprises: time domain resource indication information; K in the time domain resource instruction information 0 equal to 0, K 0 is used to indicate the time scheduled PDSCH on each carrier with a corresponding physical downlink control The first time slot that meets the preset time between the channel PDCCHs.
- RRC signaling configures one carrier for cross-carrier scheduling
- RRC signaling configures the corresponding scheduling carrier and the corresponding CIF index for the carrier.
- each CIF index corresponds to one carrier, and each DCI can only schedule PDSCH on one carrier at a time, thereby increasing the load of transmission control signaling of the 5G system.
- the total number of carriers M that can be scheduled by DCI is configured in the PDSCH configuration information through RRC signaling, and the RNTI used to indicate that DCI currently schedules PDCSH on one or N carriers, so as to reduce the transmission control signaling of the 5G system Load.
- N is a positive integer greater than 1 and N is less than or equal to M. That is, the total number of carriers that can be scheduled by the DCI is directly configured through RRC signaling, and the second communication node configures a different RNTI to distinguish whether the DCI is scheduled to schedule PDSCH on one carrier or schedule PDSCH on N carriers.
- the second communication node transmits the DCI to the first communication node through the PDCCH channel, and the first communication node determines the RNTI by blindly detecting the PDCCH, thereby determining whether the DCI scheduling is to schedule PDSCH on one carrier or schedule PDSCH on N carriers.
- RRC signaling configures two carriers for the first communication node, namely carrier A (corresponding to carrier index 0) and carrier B (corresponding to carrier index 1). At this time, the total number of carriers that can be scheduled by DCI is 2.
- the RRC signaling configures the DCI scheduling carrier on carrier A for a carrier with a carrier index of 0 (ie, carrier A) and a carrier with a carrier index of 1 (ie, carrier B).
- RRC signaling configures two RNTIs, namely RNTI1 and RNTI2, where RNTI1 is used to instruct DCI on carrier A to schedule PDSCH on one carrier (carrier A) this time, and RNTI2 is used to indicate DCI on carrier A this time Schedule PDSCH on 2 carriers (Carrier A and Carrier B).
- RNTI1 is used to instruct DCI on carrier A to schedule PDSCH on one carrier (carrier A) this time
- RNTI2 is used to indicate DCI on carrier A this time Schedule PDSCH on 2 carriers (Carrier A and Carrier B).
- RRC signaling configures one carrier for cross-carrier scheduling
- RRC signaling configures the corresponding scheduling carrier and the corresponding CIF index for the carrier.
- each CIF index corresponds to one carrier, that is, each DCI can only schedule PDSCH on one carrier at a time, which increases the load of transmission control signaling in the 5G system.
- the mapping relationship between the CIF index and the carrier is configured in the PDSCH configuration information through RRC signaling, and each CIF index can be mapped to at least one carrier, so as to reduce the load of 5G system transmission control signaling. That is, the second communication node notifies the first communication node of the mapping relationship between the CIF index and the carrier, and one CIF index is mapped to at least one carrier.
- the DCI schedules PDSCH on N carriers, and one PDSCH is scheduled on each carrier, and N is a positive integer greater than 1.
- the DCI schedules PDSCH on the carrier
- the second communication node notifies the first communication node of the mapping relationship between the CIF index and the carrier through RRC signaling.
- the RRC signaling configures the same scheduling carrier and the same CIF index on at least one carrier.
- the DCI schedules PDSCH on N carriers, and one PDSCH is scheduled on each carrier, and N is a positive integer greater than 1.
- the second communication node may notify the first communication node of the mapping relationship between the CIF index and the at least one carrier through a Media Access Control-Control Element (MAC CE) or a DCI method.
- MAC CE Media Access Control-Control Element
- RRC signaling configures carrier A to schedule carrier B, carrier C, and carrier D across carriers.
- RRC signaling configures the carrier index of carrier A to be 0
- RRC signaling configures the scheduling carrier index and CIF index of carrier B to be 0 and 1, respectively
- RRC signaling configures the scheduling carrier index and CIF index of carrier C to be 0 and 1, respectively.
- the RRC signaling configures the scheduling carrier index and CIF index of carrier D to be 0 and 2, respectively. If the CIF index indicated by the CIF field in the DCI on carrier A is 1, the DCI schedules a PDSCH on carrier B and carrier C respectively; if the CIF index indicated by the CIF field in the DCI on carrier A is 2, the DCI is on the carrier PDSCH is scheduled on D.
- the second communication node notifies the first communication node of the mapping relationship between the CIF index and the carrier through RRC signaling.
- the RRC signaling configures the mapping relationship between the CIF index and the carrier index on the scheduling carrier.
- RRC signaling configures 4 carriers for the first communication node, that is, carrier A, carrier B, carrier C, and carrier D, and the corresponding carrier indexes are 0, 1, 2, and 3, respectively.
- RRC signaling configures carrier A to schedule carrier B, carrier C, and carrier D across carriers.
- Table 1 is a mapping relationship table of CIF index and carrier index configured by RRC signaling.
- the DCI schedules the PDSCH on carrier A; when the CIF field in the DCI indicates the CIF index is 1, 2 or 3, the DCI schedules the corresponding PDSCH on Carrier B, Carrier C or Carrier D (ie, CIF index is 1, schedules PDSCH on carrier B; CIF index is 2, schedules PDSCH on carrier C; CIF index is 3, schedules carrier D
- CIF index is 1, schedules PDSCH on carrier B; CIF index is 2, schedules PDSCH on carrier C; CIF index is 3, schedules carrier D
- the CIF field in the DCI indicates that the CIF index is 4 or 5, since the CIF index is mapped to two carriers, the DCI schedules the PDSCH on the corresponding two carriers.
- the DCI schedules a PDSCH on carrier A and carrier B respectively; when the CIF index indicated by the CIF field in the DCI is 5, the DCI is on carrier C and carrier B. One PDSCH is scheduled on carrier D respectively.
- the DCI schedules a PDSCH on carrier A, carrier B, and carrier C respectively; when the CIF index indicated by the CIF field in the DCI is 7, the DCI is One PDSCH is scheduled on Carrier A, Carrier B, Carrier C and Carrier D respectively.
- Table 1 A mapping relationship between CIF index and carrier index
- Table 2 is another mapping relationship table of CIF index and carrier index configured by RRC signaling.
- the 5G system can limit the maximum number of carriers that can be scheduled for each DCI each time. Assuming that the 5G system limits the DCI to schedule a maximum of 2 carriers at a time, the mapping relationship between the CIF index and the carrier index is shown in Table 2. Under the same background, the explanation of Table 2 can refer to the explanation of Table 1, which will not be repeated here.
- the second communication node may notify the first communication node of the mapping relationship between the above-mentioned CIF index and the two sets of carriers by means of MAC CE or DCI.
- the DCI signaling indicates the scheduled carrier through the CIF domain
- the TDRA domain indicates the time slot and symbol of the PDSCH on the scheduled carrier. Since the CIF field in the DCI can only indicate one carrier for each scheduling, the TDRA field can only indicate the time slot and symbol of the PDSCH scheduled on this carrier, which limits the realization of one DCI scheduling PDSCH on multiple carriers.
- the second communication node configures the mapping relationship between the TDRA index and at least one group of time domain resource indication information in the PDSCH configuration information through RRC signaling, and each group of time domain resource indication information includes a K 0 , an SLIV, and A PDSCH mapping type.
- the second communication node notifies the first communication node of the mapping relationship between each group of time domain resource indication information and the carrier, so as to implement one DCI to schedule PDSCH on at least one carrier.
- the TDRA field in the DCI indicates the TDRA index.
- the DCI schedules PDSCH on the carriers corresponding to the N groups of time domain resource indication information, and one PDSCH is scheduled on each carrier, N It is a positive integer greater than 1; when the TDRA index is mapped to a group of time domain resource indication information, the DCI schedules PDSCH on the carrier corresponding to this group of time domain resource indication information.
- the second communication node may notify the first communication node of the mapping relationship between the TDRA index and the at least one group of time domain resource indication information through MAC CE or DCI.
- Table 3 is a mapping relationship table between the TDRA index, the time domain resource indication information, and the carrier provided by the embodiment of the present application. As shown in Table 3, multiple sets of time domain resource indication information, the mapping relationship between the TDRA index and the time domain resource indication information, and the mapping relationship between the time domain resource indication information and the carrier are configured through RRC signaling. For a certain TDRA index, when a certain carrier is not configured with the corresponding K 0 , SLIV and PDSCH mapping types, if the TDRA field in the DCI indicates the TDRA index, the DCI does not schedule PDSCH on the carrier.
- TDRA index 0 corresponds to the time domain resource indication information on carrier A.
- DCI schedules PDSCH on carrier A, and the mapping types of K 0 , SLIV and PDSCH corresponding to this PDSCH are respectively K0_A0, S_A0 and M_A0.
- TDRA index 1 and TDRA index 2 correspond to carrier B and time domain resource indication information on C, respectively.
- the TDRA field indicates TDRA index 1 or TDRA index 2
- DCI is scheduled on carrier B or carrier C, respectively.
- TDRA index 3 corresponds to the time domain resource indication information on carrier A and carrier B.
- DCI the TDRA field indicates TDRA index 3
- DCI schedules PDSCH on carrier A and carrier B, and one PDSCH is scheduled on each carrier.
- the K 0 , SLIV and PDSCH mapping types of the PDSCH scheduled on carrier A are K0_A3, S_A3 and M_A3 respectively;
- the K 0 , SLIV and PDSCH mapping types of the PDSCH scheduled on carrier B are K0_B3, S_B3 and M_B3.
- DCI schedules PDSCH on carrier B and carrier C, and one PDSCH is scheduled on each carrier; if the TDRA field in DCI indicates TDRA index 5, DCI is on carrier A PDSCH is scheduled on carrier C, and one PDSCH is scheduled on each carrier.
- TDRA index 6 corresponds to the time domain resource indication information on carrier A, carrier B, and carrier C.
- DCI schedules PDSCH on carrier A, carrier B, and carrier C, each A PDSCH is scheduled on the carrier.
- the K 0 , SLIV and PDSCH mapping types of the PDSCH scheduled on carrier A are K0_A6, S_A6 and M_A6 respectively;
- the K 0 , SLIV and PDSCH mapping types of the PDSCH scheduled on carrier B are K0_B6, S_B6 and M_B6:
- the K 0 , SLIV and PDSCH mapping types of PDSCH scheduled on Wave C are K0_C6, S_C6 and M_C6, respectively.
- Table 3 A mapping relationship between TDRA index, time domain resource indication information and carrier
- the second communication node notifies the first communication node of the mapping relationship between the TDRA index and at least one group of time domain resource indication information, and each group of time domain resource indication information includes a K 0 , an SLIV and a PDSCH mapping type .
- the at least one group of time domain resource indication information includes the same K 0 .
- the second communication node may notify the first communication node of the mapping relationship between the above-mentioned TDRA index and at least one set of time domain resource indication information by means of MAC CE or DCI.
- the second communication node may notify the first communication node of the mapping relationship between each group of time domain resource indication information and the carrier by means of MAC CE or DCI.
- the second communication node notifies the first communication node of the mapping relationship between each group of time domain resource indication information and the carrier.
- the TDRA field in the DCI indicates the TDRA index.
- the DCI schedules PDSCH on the carrier corresponding to the N sets of time domain resource indication information, and one PDSCH is scheduled on each carrier , N is a positive integer greater than 1; when the TDRA index is mapped to a group of time domain resource indication information, the DCI schedules PDSCH on the carrier corresponding to this group of time domain resource indication information.
- the base station may notify the mapping relationship between the above-mentioned TDRA index and at least one group of time domain resource indication information by means of MAC CE or DCI.
- Table 4 is another mapping relationship table between the TDRA index, the time domain resource indication information, and the carrier provided by the embodiment of the present application. As shown in Table 4, at least one group of time domain resource indication information is configured through RRC signaling, and the at least one group of time domain resource indication information includes the same K 0 . For a certain TDRA index, when a carrier is not configured with the corresponding SLIV and PDSCH mapping type, if the TDRA field in the DCI indicates the TDRA index, the DCI will not schedule the PDSCH on the carrier.
- RRC signaling configures three carriers for the first communication node, namely carrier A, carrier B, and carrier C.
- Carrier A schedules carrier B and carrier C across carriers.
- TDRA index 0 corresponds to the time domain resource indication information on carrier A.
- DCI schedules PDSCH on carrier A and the mapping types of K 0, SLIV and PDSCH corresponding to this PDSCH are respectively K0_0, S_A0 and M_A0.
- TDRA index 1 and TDRA index 2 correspond to the time domain resource indication information on carrier B and carrier C, respectively.
- DCI scheduling is performed on carrier B or PDSCH is scheduled on carrier C.
- TDRA index 3 corresponds to the time domain resource indication information on carrier A and carrier B.
- DCI schedules PDSCH on carrier A and carrier B, and one PDSCH is scheduled on each carrier.
- the K 0 , SLIV, and PDSCH mapping types of the PDSCH scheduled on carrier A are K0_3, S_A3, and M_A3, respectively;
- the K 0 , SLIV, and PDSCH mapping types of the PDSCH scheduled on carrier B are K0_3, S_B3, and M_B3.
- DCI schedules PDSCH on carrier B and carrier C, and one PDSCH is scheduled on each carrier; when the TDRA field in DCI indicates TDRA index 5, DCI schedules PDSCH on carrier A and carrier C, and one PDSCH is scheduled on each carrier.
- TDRA index 6 corresponds to the time domain resource indication information on carrier A, carrier B, and carrier C.
- DCI schedules PDSCH on carrier A, carrier B, and carrier C, each A PDSCH is scheduled on the carrier.
- the K 0 , SLIV and PDSCH mapping types of the PDSCH scheduled on carrier A are K0_6, S_A6 and M_A6 respectively;
- the K 0 , SLIV and PDSCH mapping types of the PDSCH scheduled on carrier B are K0_6, S_B6 and M_B6;
- the K 0 , SLIV and PDSCH mapping types of PDSCH scheduled on wave C are K0_6, S_C6 and M_C6, respectively.
- Table 4 Another mapping relationship between TDRA index, time domain resource indication information and carrier
- DCI indicates the scheduled carrier through the CIF domain, and indicates the time slot and symbol of the PDSCH on the scheduled carrier through the TDRA domain.
- the first communication node determines the carrier where the DCI currently schedules the PDSCH through the TDRA domain in the DCI.
- the CIF domain does not need to be a carrier indicator.
- the CIF field and the TDRA field are used to jointly indicate the TDRA index.
- the CIF field is represented by X (X is a positive integer) bit, and its corresponding decimal value is CIF_X
- the TDRA field is represented by Y (Y is a positive integer) bit, and its corresponding decimal value is TDRA_Y.
- the TDRA index indicated by the CIF field and the TDRA field is CIF_X*2 ⁇ Y+TDRA_Y, that is The TDRA index is the value of the product of CIF_X and the Y power of 2, and the sum of TDRA_Y.
- the TDRA index indicated by the CIF field and the TDRA field is TDRA_Y*2 ⁇ X+CIF_X, that is, the TDRA index is the product of TDRA_Y and the X power of 2 Value, and then the sum of CIF_X.
- the TDRA field indicates the TDRA index alone, there can be at most 2 ⁇ Y configurations; when the CIF field and the TDRA field jointly indicate the TDRA index, at most 2 ⁇ (X+Y) configurations can be indicated, thus Increase the scope of TDRA index, improve the flexibility of TDRA table configuration.
- the CIF field is represented by 3 bits and the TDRA field is represented by 4 bits
- the TDRA field when the TDRA field is used alone to indicate the TDRA index, it can only indicate a maximum of 16 configurations; when the CIF field and the TDRA field jointly indicate the TDRA index, a total of 7 bits, can indicate up to 128 configurations.
- Table 5 is a schematic table for the CIF field and the TDRA field to jointly indicate the TDRA index range provided in the embodiment of the present application.
- the DCI indicates the time domain resource indication information on carrier A and carrier B at this time.
- the DCI indicates the time domain resource indication information on carrier A and carrier C at this time.
- Table 5 A schematic table of the CIF field and the TDRA field jointly indicating the TDRA index range
- the TDRA field can only indicate the time slot and symbol of the PDSCH scheduled on this carrier, so The realization of scheduling PDSCH on multiple carriers by one DCI is limited, and the load of transmitting control signaling is increased.
- the second communication node notifies the first communication node of the mapping relationship between the TDRA index and at least one set of time domain resource indication information, and each set of time domain resource indication information includes one K 0 , one SLIV and one PDSCH mapping type, And the CIF field in the DCI indicates the CIF index, and the CIF index is mapped to at least one carrier, so that one DCI can schedule PDSCH on multiple carriers.
- the DCI schedules the PDSCH on the N carriers, and A PDSCH is scheduled on each carrier, and each group of time-domain resource indication information corresponds to a PDSCH scheduled on a carrier.
- N is a positive integer greater than 1.
- the CIF index indicated by the CIF field in the DCI is mapped to a carrier, the TDRA in the DCI
- the DCI schedules the PDSCH on this carrier.
- the number of groups of time domain resource indication information mapped by the TDRA index indicated by the TDRA field in the DCI is equal to the number of carriers mapped by the CIF index indicated by the CIF field in the DCI.
- Table 6 is another TDRA index, time domain resource indication information, and a mapping relationship table between carriers provided in the embodiment of the present application. As shown in Table 6, multiple sets of time domain resource indication information are configured in one TDRA table. Assume that RRC signaling configures three carriers for the first communication node, namely carrier A, carrier B, and carrier C. Carrier A schedules carrier B and carrier C across carriers. The CIF field indicates that one or more carriers have been described in the above embodiments, and will not be repeated here.
- the DCI schedules PDSCH on carrier A and the mapping types of K 0 , SLIV and PDSCH corresponding to PDSCH are K0_10, S_10, and M_10, respectively .
- the DCI schedules PDSCH on carrier B and the mapping types of K 0 , SLIV and PDSCH corresponding to the PDSCH are K0_10, S_10, and M_10, respectively.
- TDRA Time domain resource indication information mapped by the TDRA index indicated by the TDRA field in the DCI is equal to the number of carriers mapped by the CIF index indicated by the CIF field in the DCI.
- the TDRA index indicated by the domain can only be 3, 4, or 5. Assuming that the TDRA index indicated by the TDRA field is 4, the DCI schedules PDSCH on carrier A and carrier B.
- the mapping types of K 0 , SLIV and PDSCH corresponding to the PDSCH scheduled on carrier A are K0_14, S_14 and M_14 respectively; on carrier B
- the K 0 , SLIV and PDSCH mapping types corresponding to the scheduled PDSCH are K0_24, S_24 and M_24, respectively.
- the DCI schedules PDSCH on carrier B and carrier C, and the PDSCH scheduled on carrier B corresponds to K 0 , SLIV and PDSCH mapping
- the types are K0_14, S_14 and M_14 respectively; the mapping types of K 0 , SLIV and PDSCH corresponding to the PDSCH scheduled on carrier C are K0_24, S_24 and M_24 respectively.
- the CIF field in DCI indicates carrier A, carrier B, and carrier C, in order to ensure that the number of groups of time domain resource indication information mapped by the TDRA index indicated by the TDRA field in the DCI and the carrier mapped by the CIF index indicated by the CIF field in the DCI If the number is equal, the TDRA index indicated by the TDRA field can only be 6, then the DCI schedules PDSCH on carrier A, carrier B, and carrier C.
- mapping types of K 0 , SLIV and PDSCH corresponding to the PDSCH scheduled on carrier A are K0_16, S_16 and M_16;
- mapping types of K 0 , SLIV and PDSCH corresponding to the PDSCH scheduled on carrier B are K0_26, S_26 and M_26 respectively;
- the mapping types of K 0 , SLIV and PDSCH corresponding to the PDSCH scheduled on carrier C are K0_36, S_36 and respectively M_36.
- Table 6 Another mapping relationship table between TDRA index, time domain resource indication information and carriers
- the second communication node notifies the first communication node of the mapping relationship between the TDRA index and at least one group of time domain resource indication information, and each group of time domain resource indication information includes a K 0 , an SLIV and a PDSCH mapping type .
- the at least one group of time domain resource indication information includes the same K 0 .
- the CIF field in the DCI indicates the CIF index, and the CIF index is mapped to at least one carrier.
- the DCI schedules PDSCH on N carriers, each carrier A PDSCH is scheduled on the upper, and each group of time domain resource indication information corresponds to the PDSCH scheduled on a carrier, and N is a positive integer greater than 1.
- the TDRA field in the DCI is mapped to a set of time domain resource indication information, and the DCI schedules PDSCH on this carrier.
- the number of groups of time domain resource indication information mapped by the TDRA index indicated by the TDRA field in the DCI is equal to the number of carriers mapped by the CIF index indicated by the CIF field in the DCI.
- Table 7 is another TDRA index, time domain resource indication information, and carrier mapping relationship table provided by the embodiment of the present application. As shown in Table 7, multiple sets of time domain resource indication information are configured in one TDRA table, and the multiple sets of time domain resource indication information include the same K 0 . Assume that RRC signaling configures three carriers for the first communication node, namely carrier A, carrier B, and carrier C. Carrier A schedules carrier B and carrier C across carriers. The CIF indicates that one or more carriers have been described in the above embodiments, and will not be repeated here.
- the CIF field in the DCI indicates carrier A, and the TDRA index indicated by the TDRA field is 0, then the DCI schedules PDSCH on carrier A and the mapping types of K 0 , SLIV and PDSCH corresponding to the PDSCH are K0_0, S_10 and M_10, respectively.
- the DCI schedules PDSCH on carrier B and the mapping types of K 0 , SLIV and PDSCH corresponding to PDSCH are K0_0, S_10, and M_10, respectively .
- the CIF field in the DCI indicates carrier A and carrier B.
- the TDRA index indicated by the TDRA field can only be 3, 4, or 5.
- the DCI schedules PDSCH on carrier A and carrier B , and the mapping types of K 0 , SLIV and PDSCH corresponding to the PDSCH scheduled on carrier A are K0_4, S_14 and M_14, respectively; scheduling on carrier B
- the mapping types of K 0 , SLIV and PDSCH corresponding to the PDSCH are K0_4, S_24 and M_24, respectively.
- the DCI schedules PDSCH on carrier B and carrier C, and the PDSCH scheduled on carrier B corresponds to K 0 , SLIV and
- the PDSCH mapping types are K0_4, S_14, and M_14, respectively;
- the K 0 , SLIV, and PDSCH mapping types corresponding to the PDSCH scheduled on carrier C are K0_4, S_24, and M_24, respectively.
- the DCI schedules PDSCH on Carrier A, Carrier B and Carrier C , and the K 0 , SLIV and PDSCH mapping types corresponding to the PDSCH scheduled on Carrier A are respectively K0_6, S_16 and M_16; the mapping types of K 0 , SLIV and PDSCH corresponding to PDSCH scheduled on carrier B are K0_6, S_26 and M_26 respectively; the mapping types of K 0 , SLIV and PDSCH corresponding to PDSCH scheduled on carrier C are K0_6 respectively , S_36 and M_36.
- Table 7 Another mapping relationship table of TDRA index, time domain resource indication information and carrier
- the TDRA domain can only indicate the time slot and symbol of the PDSCH scheduled on this carrier, thereby limiting
- the realization of a DCI scheduling PDSCH on multiple carriers increases the load of transmitting control signaling.
- the DCI schedules PDSCH on N carriers whose CIF indexes are i mod M, (i+1) mod M...(i+N-1) mod M, and one PDSCH is scheduled on each carrier, and each group of time domain resource indicators The information corresponds to the PDSCH scheduled on a carrier.
- mod represents the remainder operation
- M is the total number of carriers that can be scheduled by the scheduled carrier configured by the RRC signaling, so that one DCI can schedule PDSCH on multiple carriers, thereby reducing the second communication node to transmit control signaling.
- the first communication node can allocate less energy for detecting DCI, which helps the first communication node to save energy.
- this implementation is applicable to scenarios where N sets of time-domain resource indication information contains the same K 0 (that is, the example in Table 7 in the above-mentioned embodiment), and it is also applicable to N sets of time-domain resource indication information that does not contain the same K 0
- the scene of K 0 ie, the example of Table 6 in the above embodiment
- Table 6 is taken as an example for description.
- RRC signaling configures three carriers for the first communication node, namely carrier A, carrier B, and carrier C.
- the carrier CIF indexes of carrier A, carrier B, and carrier C are 0, 1, and 2, respectively.
- Carrier A schedules carrier B and carrier C across carriers.
- M is the total number of carriers scheduled by carrier A configured by RRC.
- the DCI is on the carrier with an index of 0 (ie carrier A) and the mapping types of K 0 , SLIV and PDSCH corresponding to the PDSCH are K0_10, S_10 and M_10, respectively.
- the mapping types of K 0 , SLIV, and PDSCH corresponding to the PDSCH scheduled on carrier A are K0_14, S_14, and M_14, respectively; the mapping types of K 0 , SLIV, and PDSCH corresponding to the PDSCH scheduled on carrier B are K0_24, S_24, and M_24, respectively.
- the mapping types of K 0 , SLIV, and PDSCH corresponding to the PDSCH scheduled on carrier B are K0_14, S_14, and M_14, respectively; the mapping types of K 0 , SLIV, and PDSCH corresponding to PDSCH scheduled on carrier C are K0_24, S_24, and M_24, respectively.
- the PDSCH is scheduled on carrier C) and the carrier with index 0 (carrier A).
- the mapping types of K 0 , SLIV, and PDSCH corresponding to the PDSCH scheduled on carrier C are K0_14, S_14, and M_14, respectively; the mapping types of K 0 , SLIV, and PDSCH corresponding to PDSCH scheduled on carrier A are K0_24, S_24, and M_24, respectively.
- the DCI is on the carrier with an index of 0
- the PDSCH is scheduled on the carrier (carrier A), the carrier with index 1 (carrier B), and the carrier with index 2 (carrier C).
- the mapping types of K 0 , SLIV and PDSCH corresponding to PDSCH scheduled on carrier A are K0_16, S_16 and M_16 respectively;
- the mapping types of K 0 , SLIV and PDSCH corresponding to PDSCH scheduled on carrier B are K0_26, S_26 and M_26 respectively;
- carrier C The K 0 , SLIV and PDSCH mapping types corresponding to the PDSCH scheduled on the uplink are K0_36, S_36 and M_36, respectively.
- the DCI is on the carrier with index 2 (carrier C), the carrier with index 0 (carrier A), and the carrier with index 1 (carrier B).
- the K 0 , SLIV and PDSCH mapping types corresponding to the PDSCH scheduled on carrier C are K0_16, S_16 and M_16 respectively;
- the K 0 , SLIV and PDSCH mapping types corresponding to the PDSCH scheduled on carrier A are K0_26, S_26 and M_26 respectively;
- carrier B The K 0 , SLIV and PDSCH mapping types corresponding to the PDSCH scheduled on the uplink are K0_36, S_36 and M_36, respectively.
- the TDRA field can only indicate the time slot and symbol of the PDSCH scheduled on this carrier, so This limits the implementation of a DCI scheduling PDSCH on multiple carriers, and increases the load of the 5G system to transmit control signaling.
- the DCI indicates two CIF domains, each CIF domain indicates a CIF index, and each CIF index is mapped to a carrier.
- the PDSCH is scheduled on the carriers mapped by the CIF index indicated by the DCI in the two CIF domains, and one PDSCH is scheduled on each carrier, so that one DCI can schedule PDSCHs on multiple carriers.
- RRC signaling configures three carriers for the first communication node, namely carrier A, carrier B, and carrier C.
- Carrier A schedules carrier B and carrier C across carriers, and the CIF indexes of carrier A, carrier B, and carrier C are 0, 1, and 2, respectively.
- the DCI schedules PDSCH on carrier A and carrier B, and one PDSCH is scheduled on each carrier.
- the DCI schedules PDSCH on carrier B and carrier C, and one PDSCH is scheduled on each carrier.
- the TDRA domain can only indicate the time slot and symbol of the PDSCH scheduled on this carrier, which limits The realization of a DCI scheduling PDSCH on multiple carriers increases the load of the 5G system to transmit control signaling.
- the second communication node notifies the first communication node of the mapping relationship between the CIF index and the two sets of carriers.
- the first set of carriers includes one carrier, and the second set of carriers includes at least one carrier.
- the second communication node notifies the first communication node whether the CIF index in the current DCI corresponds to the first group of carriers or the second group of carriers.
- the second communication node may notify the first communication node of the mapping relationship between the CIF index and the two sets of carriers by means of MAC CE or DCI.
- the second communication node informs the first communication node that the CIF index in the DCI corresponds to the first group of carriers
- the CIF index indicated by the CIF field in the DCI maps a corresponding carrier in the first group of carriers, and the DCI is on this carrier Schedule PDSCH.
- the CIF index indicated by the CIF field in the DCI maps at least one carrier corresponding to the second group of carriers.
- the DCI schedules PDSCH on N carriers, and one PDSCH is scheduled on each carrier.
- N is a positive integer greater than 1; in DCI, the CIF field indicates The CIF index of is mapped to a carrier, and the DCI schedules the PDSCH on the carrier.
- the second communication node notifies the first communication node of the mapping relationship between the CIF index and the two sets of carriers through RRC signaling.
- the RRC signaling configures the mapping relationship between the CIF index and the carrier index on the scheduling carrier. Assume that RRC signaling configures 8 carriers for the first communication node, namely Carrier A, Carrier B, Carrier C, Carrier D, Carrier E, Carrier F, Carrier G, and Carrier H, and their corresponding carrier indexes are 0 and 1, respectively. , 2, 3, 4, 5, 6, and 7. RRC signaling configures carrier A to schedule carrier B, carrier C, carrier D, carrier E, carrier F, carrier G, and carrier H across carriers.
- Table 8 is another mapping relationship table of CIF index and carrier index configured by RRC signaling. As shown in Table 8, assuming that the second communication node informs the first communication node through the RRC signaling configuration that the CIF index in the DCI corresponds to the first group of carriers, the CIF index indicated by the CIF field in the DCI corresponds to the first group of carriers. Carrier. In the embodiment, the CIF index indicated by the CIF field in DCI is 0, and in the carrier index of the first group of carriers, CIF index 0 is mapped to carrier 0, then the DCI schedules PDSCH on carrier A; in DCI, the CIF field The indicated CIF index is 2. In the carrier index of the first group of carriers, CIF index 2 is mapped to carrier 2, and then the DCI schedules PDSCH on carrier C.
- the CIF index indicated by the CIF field in the DCI is mapped to the corresponding carrier in the second group of carriers.
- CIF index 0 is mapped to carrier 0 and carrier 1
- the DCI is on carrier A and carrier B.
- PDSCH is scheduled up, and one PDSCH is scheduled on each carrier; when the CIF index indicated by the CIF field in the DCI is 1, in the carrier index of the second group of carriers, CIF index 1 is mapped to carrier 1, then the DCI is The PDSCH is scheduled on carrier B; when the CIF index indicated by the CIF field in the DCI is 6, in the carrier index of the second group of carriers, CIF index 6 is mapped to carrier 0 and carrier 1 and carrier 2, then the DCI is on the carrier A. PDSCH is scheduled on carrier B and C, and one PDSCH is scheduled on each carrier.
- the DCI is transmitted to the first communication node through the PDCCH, and the first communication node obtains corresponding DCI information by blindly detecting the PDCCH.
- the PDSCH scheduling needs to meet the preset time requirement.
- the 3GPP protocol defines the corresponding PDCCH processing time under different sub-carrier intervals, where ⁇ PDCCH represents the sub-carrier interval of the carrier where the DCI is located, and N pdsch represents the time required for the PDCCH, which is counted in units of the number of PDCCH symbols.
- Table 9 is a mapping relationship table between ⁇ PDCCH and N pdsch provided in the prior art.
- ⁇ PDCCH 0 means that the PDCCH subcarrier interval is 15KHz, and its corresponding PDCCH processing time is 4 symbols; ⁇ PDCCH is 1 means the PDCCH subcarrier interval is 30KHz, and its corresponding PDCCH processing time is 5 symbols ; ⁇ PDCCH of 2 means that the PDCCH subcarrier interval is 60KHz, and its corresponding PDCCH processing time is 10 symbols; ⁇ PDCCH of 3 means that the PDCCH subcarrier interval is 120KHz, and its corresponding PDCCH processing time is 14 symbols.
- the subcarrier interval of the PDCCH is smaller than the scheduled PDSCH interval, the PDSCH can only start transmission in the next time slot after the PDCCH processing delay is met.
- the subcarrier interval of the PDCCH is greater than the scheduled PDSCH interval, the PDSCH only needs to ensure that the interval between the PDSCH and the PDCCH is greater than the corresponding PDCCH processing time.
- Table 9 A mapping relationship table between ⁇ PDCCH and N pdsch
- the scheduling time of the PDSCH and the PDCCH should meet the preset time requirement.
- the PDSCH whose PDSCH mapping type is TypeA if the PDCCH for scheduling the PDSCH is not completely contained in the first three symbols of the time slot, the PDSCH cannot be scheduled on the time slot. At this time, the first time slot that meets the time requirement between the PDSCH and the PDCCH is the next time slot of the time slot.
- the first symbol of the PDSCH cannot be earlier than the first symbol of the PDCCH for scheduling the PDSCH.
- the first time slot that meets the time requirement between the PDSCH and the PDCCH is the time slot where the PDCCH is received.
- FIG. 3 is a schematic diagram of scheduling that meets a preset time between PDCCH and PDSCH according to an embodiment of the present application. Take Figure 3 as an example to describe the time requirements that need to be met between the PDCCH and its scheduled PDSCH. Assuming that carrier A cross-carrier schedules carrier B, the subcarrier spacing of carrier A is 15KHz, and the subcarrier spacing of carrier B is 30KHz. Assume that both carrier A and carrier B are scheduled on PDSCH with a PDSCH mapping type of TypeA. The PDCCH on carrier A is on the first two symbols of the time slot. According to the existing protocol, when carrier A schedules the PDSCH on carrier A, the PDSCH and the corresponding PDCCH can be in the same time slot, that is, the minimum value of K 0 can be configured as 0.
- the second communication node In the case of carrier A cross-carrier scheduling the PDSCH on carrier B, according to the existing 3GPP protocol, the second communication node first needs to reserve 4 PDCCH symbol-long PDCCH processing delays, and secondly, the second communication node can only satisfy The next time slot after the PDCCH processing delay starts to schedule the PDSCH.
- the PDSCH in Figure 3 can only be scheduled from time slot 1 on carrier B at the earliest, that is, the smallest value of K 0 can only be configured as 1.
- K 0 can be indicated in a DCI through the TDRA field, which results in a relatively limited value of K 0.
- K 0 can only be configured as a minimum of 1, which results in that the PDSCH on carrier A can only be scheduled on time slot 1 at the earliest, which increases the scheduling delay on carrier A.
- K 0 0
- a carrier A cross-carrier schedules carrier B
- the subcarrier interval of carrier A is 15KHz
- the subcarrier interval of carrier B is 30KHz.
- both the PDSCH mapping type TypeA PDSCH are scheduled on carrier A and carrier B
- the PDCCH on carrier A is on the first two symbols of the time slot.
- the PDSCH and the corresponding PDCCH can be in the same time slot, that is, the minimum value of K 0 can be configured as 0.
- the first time slot on carrier A that meets the time requirement between PDSCH and PDCCH is time slot 0.
- the second communication node In the case of carrier A cross-carrier scheduling PDSCH on carrier B, according to the existing protocol, the second communication node first needs to reserve a PDCCH processing delay of 4 PDCCH symbols, and secondly, the second communication node can only meet the requirements of PDCCH processing The next time slot after the delay starts to schedule the PDSCH.
- the PDSCH in Figure 3 can only be scheduled from time slot 1 on carrier B at the earliest, that is, the smallest value of K 0 can only be configured as 1.
- the first time slot on carrier B that meets the time requirement between PDSCH and PDCCH is time slot 1.
- the second communication node schedules PDSCH on time slot 0 of carrier A and time slot 1 of carrier B, the second communication node only needs to indicate a K 0 value in the DCI, that is, configure K 0 to 0.
- the base station configures two carriers for the user terminal, namely carrier 1 and carrier 2.
- Carrier 1 is a Long Term Evolution (LTE) carrier or a New Radio (NR) carrier
- carrier 2 is an NR carrier.
- MIMO Multiple Input Multiple Output
- the user terminal needs to support the use of two antenna ports on carrier 2 to transmit uplink signals.
- the user terminal is configured with two sets of radio frequency links, plus one set of radio frequency links for carrier 1, if the user terminal transmits uplink signals on carrier 1 and carrier 2 at the same time Signal, the terminal is configured with three sets of radio frequency links.
- the embodiment of the present application restricts the uplink signal sent by the user terminal, and the user terminal can only configure two sets of radio frequency links, and can also make full use of the advantages of the NR system MIMO technology.
- the base station configures two carriers for the user terminal, namely carrier 1 and carrier 2.
- the user terminal has two sending modes, namely sending mode one and sending mode two.
- the first transmission mode includes: the terminal allows the uplink signal to be transmitted on carrier 1.
- the second sending mode includes: the terminal is not allowed to send uplink signals on carrier 2.
- the base station configures two carriers for the user terminal, namely carrier 1 and carrier 2.
- the user terminal has two sending modes, namely sending mode one and sending mode two.
- the first transmission mode includes: the user terminal uses one antenna port on carrier 1 to transmit uplink signals, and the user terminal does not transmit uplink signals on carrier 2; the user terminal uses one antenna port on carrier 1 to transmit uplink signals, and the user terminal transmits uplink signals on carrier 1.
- Carrier 2 uses one antenna port to send uplink signals; user terminals do not send uplink signals on carrier 1, and user terminals use one antenna port on carrier 2 to send uplink signals.
- the second transmission mode includes: the user terminal does not send uplink signals on carrier 1, and the user terminal uses two antenna ports on carrier 2 to send uplink signals; the user terminal does not send uplink signals on carrier 1, and the user terminal uses carrier 2.
- One antenna port transmits uplink signals.
- the uplink signal includes physical uplink shared channel (PUSCH), physical uplink control channel (PUCCH), channel sounding reference signal (Sounding Reference Signal, SRS) and random access Channel (Physical Random Access Channel, PRACH).
- PUSCH physical uplink shared channel
- PUCCH physical uplink control channel
- SRS Sounding Reference Signal
- PRACH Physical Random Access Channel
- carrier 1 is an LTE carrier
- carrier 2 is an NR carrier.
- carrier 1 is an NR carrier
- carrier 2 is another NR carrier.
- carrier 1 when carrier 1 is an NR carrier and carrier 2 is another NR carrier, the base station configures carrier 1 and carrier 2 in the same PUCCH group (denoted as PUCCH Group), which is helpful for reuse
- PUCCH Group the PUCCH group
- the user terminal when the user terminal is in transmission mode 1, the user terminal configures one set of radio frequency links to carrier 1, and another set of radio frequency links to carrier 2. When the user terminal is in transmission mode 2, the user terminal configures both sets of radio frequency links to carrier 2.
- the base station configures two carriers for the user terminal, namely carrier 1 and carrier 2.
- the user terminal judges whether it is necessary to switch the transmission mode according to the handover triggering factor.
- the handover triggering factor includes at least one of the following: DCI format, SRS index corresponding to uplink signal, number of SRS ports corresponding to uplink signal, number of ports for transmitting PUSCH, PRACH Transmission and frame structure.
- the base station configures two carriers for the user terminal, namely carrier 1 and carrier 2.
- the user terminal When the user terminal is currently in transmission mode 1, and the user terminal receives a notification from the base station informing the terminal to use two antenna ports to transmit uplink signals on carrier 2 in the next uplink period, the user terminal switches to transmission mode 2 and is on carrier 2. Two antenna ports are used to transmit the uplink signal.
- the user terminal When the user terminal is currently in transmission mode 2 and the terminal receives a notification from the base station informing the terminal to transmit an uplink signal on carrier 1 in the next uplink period, the user terminal switches to transmission mode and transmits the uplink signal on carrier 1 at the same time.
- the user terminal remains in the current transmission mode when the foregoing transmission mode switching condition is not met.
- the base station configures two carriers for the user terminal, namely carrier 1 and carrier 2.
- the user terminal When the user terminal receives the notification from the base station to inform the user terminal to enter the transmission mode 2 in the next uplink period, the user terminal does not expect the base station to schedule uplink signals on carrier 1 in the next uplink period.
- the user terminal When the user terminal receives the notification from the base station to inform the user terminal to enter transmission mode 1 in the next uplink period, the user terminal does not expect the base station to schedule uplink signals transmitted by two antenna ports on carrier 2 in the next uplink period.
- the base station configures two carriers for the user terminal, namely carrier 1 and carrier 2.
- the user terminal When the user terminal receives the notification from the base station to inform the user terminal to use two antenna ports to transmit uplink signals on carrier 2 in the next uplink period, the user terminal does not expect the base station to schedule uplink signals on carrier 1 in the next uplink period.
- the user terminal When the user terminal receives a notification from the base station to inform the user terminal to transmit uplink signals on carrier 1 in the next uplink period, the user terminal does not expect the base station to schedule uplink signals transmitted by two antenna ports on carrier 2 in the next uplink period.
- the base station configures two carriers for the user terminal, namely carrier 1 and carrier 2.
- the user terminal When the user terminal is currently in transmission mode 1, and the user terminal receives a notification from the base station informing the user terminal to use an antenna port to transmit uplink signals on carrier 1 in the next uplink period, the user terminal remains in transmission mode and is on carrier 1 Send the corresponding uplink signal.
- the base station configures two carriers for the user terminal, namely carrier 1 and carrier 2.
- carrier 1 When the user terminal is currently in transmission mode 1, and the user terminal receives a notification from the base station that the user terminal uses an antenna port to transmit uplink signals on carrier 2 in the next uplink period, the user terminal remains in transmission mode and is on carrier 2 Send the corresponding uplink signal.
- the base station configures two carriers for the user terminal, namely carrier 1 and carrier 2.
- the user terminal When the user terminal is currently in transmission mode 1, and the user terminal receives a notification from the base station informing the user terminal to use one antenna port to transmit uplink signals on carrier 1 and carrier 2 in the next uplink period, the user terminal remains in the transmission mode and simultaneously Corresponding uplink signals are sent on carrier 1 and carrier 2.
- the base station configures two carriers for the user terminal, namely carrier 1 and carrier 2.
- the user terminal When the user terminal is currently in transmission mode 1, and the user terminal receives a notification from the base station informing the terminal to use two antenna ports to transmit uplink signals on carrier 2 in the next uplink period, the user terminal switches to transmission mode 2 and is on carrier 2. Send the corresponding uplink signal.
- the base station configures two carriers for the user terminal, namely carrier 1 and carrier 2.
- the user terminal When the user terminal is currently in transmission mode 2 and the user terminal receives a notification from the base station that the user terminal uses two antenna ports to transmit uplink signals on carrier 2 in the next uplink period, the user terminal remains in transmission mode 2 and is on carrier 2. The corresponding uplink signal is sent on.
- the base station configures two carriers for the user terminal, namely carrier 1 and carrier 2.
- the user terminal When the user terminal is currently in transmission mode 2 and the user terminal receives a notification from the base station informing the user terminal to use an antenna port to transmit uplink signals on carrier 2 in the next uplink period, the user terminal remains in transmission mode 2 and is on carrier 2. Send the corresponding uplink signal.
- the base station configures two carriers for the user terminal, namely carrier 1 and carrier 2.
- the user terminal When the user terminal is currently in transmission mode 2, and the user terminal receives a notification from the base station informing the user terminal to use an antenna port to transmit uplink signals on carrier 1 in the next uplink period, the user terminal switches to transmission mode and is on carrier 1 Send the corresponding uplink signal.
- the next uplink period represents the next time slot, the next subframe, or the next segment of continuous uplink symbols.
- TDD Time Division Duplex
- S Time Division Duplex
- U means uplink time slot
- S means special time slot
- 10:2:2 means that the first 10 symbols of special time slot are downlink symbols
- the last 2 symbols of special time slot are uplink symbols.
- the remaining 2 symbols in the middle of the special time slot are flexible symbols (used as a guard interval for switching between uplink and downlink).
- the first segment of continuous uplink symbols is the 16 uplink symbols contained in the first "S" time slot and the subsequent "U” time slot.
- the second segment of continuous uplink symbols is the 30 uplink symbols contained in the second "S" time slot and the subsequent two "U” time slots.
- the PUSCH scheduled by the DCI is transmitted using only one antenna port.
- the precoding matrix indicator Transmission Precoding Matrix Indicator, TPMI
- the user terminal When the user terminal is currently in transmission mode 1, and the user terminal receives the DCI sent by the base station, and the DCI instructs the user terminal to transmit PUSCH with TPMI 0 on carrier 2 in the next uplink period, the user terminal does not need to switch to transmission mode 2. (That is, the user terminal stays in transmission mode one) and transmits the PUSCH on carrier 2.
- the DCI instructs the user terminal to transmit a PUSCH with a non-zero TPMI on carrier 2 in the next uplink period, and the user terminal switches to transmission mode two.
- PUSCH is transmitted on carrier 2.
- the user terminal When the user terminal is currently in transmission mode 2 and the user terminal receives the DCI sent by the base station, and the DCI instructs the user terminal to transmit a PUSCH with a TPMI of 0 on carrier 2 in the next uplink period, the user terminal remains in transmission mode 2.
- the PUSCH scheduled by the DCI is transmitted using only one antenna port.
- the user terminal When the user terminal is currently in transmission mode 1, and the user terminal receives the DCI sent by the base station, and the DCI instructs the terminal to transmit PUSCH with TPMI 1 on carrier 2 in the next uplink period, the user terminal does not need to switch to transmission mode 2 ( That is, the terminal stays in transmission mode 1), and transmits PUSCH on carrier 2.
- the user terminal When the user terminal is currently in transmission mode 1, and the user terminal receives the DCI sent by the base station, and the DCI instructs the user terminal to transmit a PUSCH with a TPMI other than 1 on carrier 2 in the next uplink period, the user terminal switches to transmission mode 2. And send PUSCH on carrier 2.
- the user terminal When the user terminal is currently in transmission mode 2 and the user terminal receives the DCI sent by the base station, and the DCI instructs the user terminal to transmit a PUSCH with a TPMI of 1 on carrier 2 in the next uplink period, the user terminal remains in transmission mode 2.
- the user terminal when the user terminal is currently in transmission mode 1, and the user terminal receives the DCI format A sent by the base station, and the DCI format A instructs the terminal to transmit uplink signals on carrier 2 in the next uplink period, the user terminal does not It is necessary to switch to transmission mode 2 (that is, the user terminal remains in transmission mode 1), and transmit the uplink signal on carrier 2.
- the user terminal When the user terminal is currently in transmission mode 1, and the user terminal receives the DCI format B sent by the base station, and the DCI format B instructs the terminal to transmit uplink signals on carrier 2 in the next uplink period, the user terminal switches to transmission mode 2, and The uplink signal is sent on carrier 2.
- the user terminal When the user terminal is currently in transmission mode 2 and the user terminal receives the DCI format A sent by the base station, and the DCI format A instructs the terminal to transmit uplink signals on carrier 2 in the next uplink period, the user terminal remains in transmission mode 2, and The uplink signal is sent on carrier 2.
- DCI format A is DCI format 0_0
- DCI format B is DCI format other than DCI format 0_0 that can schedule uplink signals, trigger uplink signals, or activate uplink signals.
- the base station when carrier 1 is an LTE carrier and carrier 2 is an NR carrier, the base station configures a reference frame structure for the user terminal.
- the reference frame structure includes uplink U time slots and other time slots, and other time slots include downlink D time slots and special S time slots.
- the user terminal When the user terminal is in the uplink U time slot, the user terminal is in transmission mode one; when the user terminal is in other time slots, the user terminal is in the transmission mode two.
- the user terminal when the user terminal enters other time slots from the uplink U time slot, the user terminal switches from transmission mode one to transmission mode two. In the case that the user terminal enters the uplink U time slot from another time slot, the user terminal switches from transmission mode two to transmission mode one.
- the reference frame structure configured by the system includes consecutive P (P is a positive integer) uplink U time slots. During a period of time before the start of consecutive P uplink U time slots and a period of time after the end of consecutive P uplink U time slots, the user terminal does not send any uplink signal.
- Fig. 4 is a structural block diagram of an information scheduling device provided by an embodiment of the present application. As shown in FIG. 4, the information scheduling device in this embodiment includes: a first receiving module 310, a second receiving module 320, and a first determining module 330.
- the first receiving module 310 is configured to receive physical downlink shared channel PDSCH configuration information sent by the second communication node;
- the second receiving module 320 is configured to receive the downlink control information DCI issued by the second communication node;
- the first determining module 330 is configured to determine PDSCH scheduling information on at least one carrier according to PDSCH configuration information and DCI.
- the information scheduling device provided in this embodiment is configured to implement the information scheduling method applied to the first communication node in the embodiment shown in FIG. 1.
- the implementation principles and technical effects of the information scheduling device provided in this embodiment are similar, and will not be repeated here.
- the scheduling information includes at least one of the following items: the number of currently scheduled carriers, time domain resource indication information, the currently scheduled PDSCH carrier, and the currently scheduled PDSCH carrier indicator domain CIF index.
- the PDSCH configuration information includes: the total number of schedulable carriers M for DCI; it is used to indicate that the DCI currently schedules PDCSH on one or N carriers.
- the radio network temporary identifier RNTI, N is a positive integer greater than 1, and N Less than or equal to M.
- the PDSCH configuration information includes: a mapping relationship between a carrier indicator field CIF index and a carrier, and each CIF index is mapped to at least one carrier.
- the CIF field in the DCI indicates the CIF index
- the carrier mapped by the CIF index is the carrier for which DCI currently schedules PDCSH; when the CIF index indicated by the CIF field is mapped to N carriers, the DCI is used to PDCSH is scheduled on the carrier, and one PDSCH is scheduled on each carrier, and N is a positive integer greater than 1.
- DCI is used to schedule PDCSH on one carrier.
- the PDSCH configuration information includes: the mapping relationship between the time domain resource allocation TDRA index and at least one group of time domain resource indication information, and each group of time domain resource indication information includes: slot offset K 0 , starting point The length indicates the SLIV and PDSCH mapping type.
- each group of time domain resource indication information includes the same K 0 .
- each group of time domain resource indication information includes the same SLIV.
- the PDSCH configuration information further includes: a mapping relationship between each group of time domain resource indication information and carriers.
- the TDRA field in the DCI indicates the TDRA index; in the case where the TDRA index is mapped to N sets of time domain resource indication information, the DCI is used to schedule PDSCH on the carrier corresponding to the N sets of time domain resource indication information, and One PDSCH is scheduled on each carrier, and N is a positive integer greater than 1.
- DCI is used to schedule PDSCH on the carrier corresponding to a set of time domain resource indication information .
- the CIF field and the TDRA field in the DCI jointly indicate the TDRA index.
- the CIF field in the DCI indicates the CIF index, and the CIF index is mapped to at least one carrier;
- the TDRA field in the DCI indicates the TDRA index;
- DCI is used to schedule PDSCH on N carriers, and One PDSCH is scheduled on each carrier, and N is a positive integer greater than 1;
- the DCI is used to schedule the PDSCH on one carrier.
- the number of groups of time domain resource indication information mapped by the TDRA index indicated by the TDRA field in the DCI is equal to the number of carriers mapped by the CIF index indicated by the CIF field in the DCI.
- the CIF field in the DCI is used to indicate the CIF index, and the CIF index is mapped to a carrier with a CIF index of i; when the TDRA index indicated by the TDRA field in the DCI is mapped to N sets of time domain resource indication information, the DCI PDSCH is scheduled on N carriers whose CIF indexes are i mod M, (i+1) mod M...(i+N-1) mod M, and one PDSCH is scheduled on each carrier; M is DCI schedulable The total number of carriers, N is a positive integer greater than 1, and mod is the remainder operation.
- the DCI indicates two CIF domains, and each CIF domain indicates a CIF index, and each CIF index is mapped to a carrier.
- the PDSCH configuration information includes: a mapping relationship between a CIF index and two sets of carriers, the first set of carriers includes one carrier, and the second set of carriers includes at least one carrier.
- the DCI when the CIF index corresponds to the first group of carriers, the DCI is used to schedule the PDSCH on a carrier mapped by the CIF index in the first group of carriers;
- the DCI is used to schedule PDSCH on at least one carrier mapped by the CIF index in the second group of carriers, and one PDSCH is scheduled on each carrier.
- the PDSCH configuration information includes: time domain resource indication information
- K 0 where the first slot equal to 0, K 0 satisfies the preset time for indicating the time between scheduled PDSCH corresponding to the PDCCH physical downlink control channel on each carrier in the time domain resource instruction information.
- Fig. 5 is a structural block diagram of another information scheduling device provided by an embodiment of the present application.
- the information scheduling device in this embodiment includes: a first sending module 410, a second determining module 420, and a second sending module 430.
- the first sending module 410 is configured to send predetermined physical downlink shared channel PDSCH configuration information to the first communication node;
- the second determining module 420 is configured to determine the downlink control information DCI used to schedule the PDSCH on at least one carrier according to the PDSCH configuration information;
- the second sending module 430 is configured to send the downlink control information to the first communication node.
- the information scheduling device provided in this embodiment is configured to implement the information scheduling method applied to the second communication node in the embodiment shown in FIG. 2.
- the implementation principles and technical effects of the information scheduling device provided in this embodiment are similar, and will not be repeated here.
- the PDSCH configuration information includes: the total number of schedulable carriers M for DCI; it is used to indicate that the DCI currently schedules PDCSH on one or N carriers.
- the radio network temporary identifier RNTI, N is a positive integer greater than 1, and N Less than or equal to M.
- the PDSCH configuration information includes: a mapping relationship between a carrier indicator field CIF index and a carrier, and each CIF index is mapped to at least one carrier.
- the CIF field in the DCI indicates the CIF index
- the carrier mapped by the CIF index is the carrier where DCI currently schedules PDCSH; in the case where the CIF index indicated by the CIF field is mapped to N carriers, the DCI is used to PDCSH is scheduled on the carrier, and one PDSCH is scheduled on each carrier, and N is a positive integer greater than 1.
- DCI is used to schedule PDCSH on one carrier.
- the PDSCH configuration information includes: the mapping relationship between the time domain resource allocation TDRA index and at least one group of time domain resource indication information, and each group of time domain resource indication information includes: slot offset K 0 , starting point The length indicates the SLIV and PDSCH mapping type.
- each group of time domain resource indication information includes the same K 0 .
- each group of time domain resource indication information includes the same SLIV.
- the PDSCH configuration information further includes: a mapping relationship between each group of time domain resource indication information and carriers.
- the TDRA field in the DCI indicates the TDRA index; in the case where the TDRA index is mapped to N sets of time domain resource indication information, the DCI is used to schedule PDSCH on the carrier corresponding to the N sets of time domain resource indication information, and One PDSCH is scheduled on each carrier, and N is a positive integer greater than 1.
- DCI is used to schedule PDSCH on the carrier corresponding to a set of time domain resource indication information .
- the CIF field and the TDRA field in the DCI jointly indicate the TDRA index.
- the CIF field in the DCI indicates the CIF index, and the CIF index is mapped to at least one carrier; the TDRA field in the DCI indicates the TDRA index; the CIF index indicated by the CIF field in the DCI is mapped to N carriers, and in the DCI
- DCI is used to schedule PDSCH on N carriers, and one PDSCH is scheduled on each carrier, and N is a positive integer greater than 1.
- the DCI is used to schedule the PDSCH on one carrier.
- the number of groups of time domain resource indication information mapped by the TDRA index indicated by the TDRA field in the DCI is equal to the number of carriers mapped by the CIF index indicated by the CIF field in the DCI.
- the CIF field in the DCI is used to indicate the CIF index, and the CIF index is mapped to a carrier with a CIF index of i;
- the CIF index of the DCI is i mod M, (i+1) mod M...(i+N-1) mod M PDSCH is scheduled on N carriers of, and one PDSCH is scheduled on each carrier; M is the total number of carriers that can be scheduled by DCI, N is a positive integer greater than 1, and mod is the remainder operation.
- the DCI indicates two CIF domains, and each CIF domain indicates a CIF index, and each CIF index is mapped to a carrier.
- the PDSCH configuration information includes: a mapping relationship between a CIF index and two sets of carriers, the first set of carriers includes one carrier, and the second set of carriers includes at least one carrier.
- the DCI when the CIF index corresponds to the first group of carriers, the DCI is used to schedule the PDSCH on a carrier mapped by the CIF index in the first group of carriers;
- the DCI is used to schedule PDSCH on at least one carrier mapped by the CIF index in the second group of carriers, and one PDSCH is scheduled on each carrier.
- PDSCH configuration information comprises: time domain resource indication information; K in the time domain resource instruction information 0 equal to 0, K 0 is used to indicate the time scheduled PDSCH on each carrier with a corresponding physical downlink control The first time slot that meets the preset time between the channel PDCCHs.
- Fig. 6 is a schematic structural diagram of a device provided by an embodiment of the present application.
- the device provided by the present application includes: a processor 510 and a memory 520.
- the number of processors 510 in the device may be one or more, and one processor 510 is taken as an example in FIG. 6.
- the number of memories 520 in the device may be one or more, and one memory 520 is taken as an example in FIG. 6.
- the processor 510 and the memory 520 of the device may be connected through a bus or in other ways. In FIG. 6, the connection through a bus is taken as an example.
- the device is the first communication node.
- the memory 520 can be configured to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the device of any embodiment of the present application (for example, the first receiving device in the information dispatching apparatus). Module, second receiving module and first determining module).
- the memory 520 may include a program storage area and a data storage area.
- the program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created according to the use of the device, and the like.
- the memory 520 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices.
- the memory 520 may further include a memory remotely provided with respect to the processor 510, and these remote memories may be connected to the device through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
- the above-provided device can be configured to execute the information scheduling method applied to the first communication node provided by any of the above-mentioned embodiments, and has corresponding functions and effects.
- the device is the second communication node
- the device provided above can be configured to execute the information scheduling method applied to the second communication node provided by any of the above embodiments, and has corresponding functions and effects.
- the embodiment of the present application also provides a storage medium containing computer-executable instructions.
- the computer-executable instructions are executed by a computer processor, they are used to execute an information scheduling method applied to a first communication node.
- the method includes: receiving 2. Physical downlink shared channel PDSCH configuration information sent by the communication node; receiving downlink control information DCI issued by the second communication node; determining PDSCH scheduling information on at least one carrier according to the PDSCH configuration information and DCI.
- the embodiment of the present application also provides a storage medium containing computer-executable instructions.
- the computer-executable instructions are executed by a computer processor, they are used to execute an information scheduling method applied to a second communication node.
- the method includes: The determined physical downlink shared channel PDSCH configuration information is sent to the first communication node; the downlink control information DCI used to schedule the PDSCH on at least one carrier is determined according to the PDSCH configuration information; the downlink control information is sent to the first communication node.
- user equipment encompasses any suitable type of wireless user equipment, such as a mobile phone, a portable data processing device, a portable web browser, or a vehicle-mounted mobile station.
- the various embodiments of the present application can be implemented in hardware or dedicated circuits, software, logic or any combination thereof.
- some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that may be executed by a controller, microprocessor, or other computing device, although the application is not limited thereto.
- Computer program instructions can be assembly instructions, Instruction Set Architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or written in any combination of one or more programming languages Source code or object code.
- ISA Instruction Set Architecture
- the block diagram of any logic flow in the drawings of the present application may represent program steps, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions.
- the computer program can be stored on the memory.
- the memory can be of any type suitable for the local technical environment and can be implemented using any suitable data storage technology, such as but not limited to read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), optical Memory devices and systems (Digital Video Disc (DVD) or Compact Disk (CD)), etc.
- Computer-readable media may include non-transitory storage media.
- the data processor can be any type suitable for the local technical environment, such as but not limited to general-purpose computers, special-purpose computers, microprocessors, digital signal processors (Digital Signal Processing, DSP), application specific integrated circuits (ASICs) ), programmable logic devices (Field-Programmable Gate Array, FGPA), and processors based on multi-core processor architecture.
- DSP Digital Signal Processing
- ASICs application specific integrated circuits
- FGPA programmable logic devices
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Abstract
本申请提出一种信息调度方法、装置、设备和存储介质。该方法包括:接收第二通信节点发送的物理下行共享信道PDSCH配置信息;接收第二通信节点下发的下行控制信息DCI;根据PDSCH配置信息和DCI确定至少一个载波上PDSCH的调度信息。
Description
本申请要求在2020年1月20日提交中国专利局、申请号为202010067578.4的中国专利申请的优先权,该申请的全部内容通过引用结合在本申请中。
本申请涉及通信,具体涉及一种信息调度方法、装置、设备和存储介质。
在现有的5G通信系统中,一个下行控制信息(Downlink Control Information,DCI)每次只能调度一个载波上的物理下行共享信道(Physical Downlink Shared Channel,PDSCH)。如果在多个载波上调度PDSCH,基站需要下发多个DCI,从而导致5G系统传输控制信令的负载较高。
发明内容
本申请实施例提供一种信息调度方法、装置、设备和存储介质,降低了5G通信系统传输控制信令的负载。
本申请实施例提供一种信息调度方法,应用于第一通信节点,包括:
接收第二通信节点发送的物理下行共享信道PDSCH配置信息;
接收第二通信节点下发的下行控制信息DCI;
根据所述PDSCH配置信息和所述DCI确定至少一个载波上PDSCH的调度信息。
本申请实施例提供一种信息调度方法,应用于第二通信节点,包括:
将预先确定的物理下行共享信道PDSCH配置信息发送至第一通信节点;
根据所述PDSCH配置信息确定用于调度至少一个载波上PDSCH的下行控制信息DCI;
将所述下行控制信息发送至第一通信节点。
本申请实施例提供一种信息调度装置,应用于第一通信节点,包括:
第一接收模块,设置为接收第二通信节点发送的物理下行共享信道PDSCH配置信息;
第二接收模块,设置为接收第二通信节点下发的下行控制信息DCI;
第一确定模块,设置为根据所述PDSCH配置信息和所述DCI确定至少一个载波上PDSCH的调度信息。
本申请实施例提供一种信息调度装置,应用于第二通信节点,包括:
第一发送模块,设置为将预先确定的物理下行共享信道PDSCH配置信息发送至第一通信节点;
第二确定模块,设置为根据所述PDSCH配置信息确定用于调度至少一个载波上PDSCH的下行控制信息DCI;
第二发送模块,设置为将所述下行控制信息发送至第一通信节点。
本申请实施例提供一种设备,包括:存储器,以及一个或多个处理器;
所述存储器,用于存储一个或多个程序;
当所述一个或多个程序被所述一个或多个处理器执行,使得所述一个或多个处理器实现上述任一实施例所述的方法。
本申请实施例提供了一种存储介质,所述存储介质存储有计算机程序,所述计算机程序被处理器执行时实现上述任一实施例所述的方法。
图1是本申请实施例提供的一种信息调度方法的流程图;
图2是本申请实施例提供的另一种信息调度方法的流程图;
图3是本申请实施例提供的一种PDCCH与PDSCH之间满足预设时间的调度示意图;
图4是本申请实施例提供的一种信息调度装置的结构框图;
图5是本申请实施例提供的另一种信息调度装置的结构框图;
图6是本申请实施例提供的一种设备的结构示意图。
下文中将结合附图对本申请的实施例进行说明。
根据第三代合作计划(3rd Generation Partnership Project,3GPP)5G协议,DCI格式1_0和DCI格式1_1用于调度一个载波上的PDSCH。此外,3GPP在版本16(Release16,R16)协议中新引入的DCI格式1_2也只能用于调度一个载波上的PDSCH。为了在多个载波上调度PDSCH,基站需要发送多个DCI,从而导致5G系统传输控制信令的负载较高。降低控制信令的资源负载,尤其是DCI所占的资源负载,可以提高5G系统资源的利用效率。此外,DCI所占的资源负载降低后,UE分配更少的能量用于检测DCI,从而有助于用户终端(User Equipment,UE)节能。
在现有5G系统及标准中,无线资源控制(Radio Resource Control,RRC)配置载波进行自调度或跨载波调度。自调度,即在当前载波上接收DCI并调度当前载波上的PDSCH;跨载波调度,即在一个载波上接收DCI而调度另一个载波上的PDSCH。在RRC配置一个载波(记为载波C)为跨载波调度的情况下,RRC配置载波C的调度载波(即由哪个载波调度载波C)并且配置载波C对应的载波指示域(Carrier Indicator Field,CIF)索引。DCI中的CIF域指示CIF索引,比如,在调度载波上DCI中的CIF域指示载波C的CIF索引的情况下,该DCI在载波C上调度PDSCH。跨载波调度由RRC跨载波调度配置(CrossCarrierSchedulingConfig)信元配置,CrossCarrierSchedulingConfig信元中调度小区Id(schedulingCellId)信元配置调度载波的载波索引,CrossCarrierSchedulingConfig信元中的小区调度CIF索引(cif-InSchedulingCell) 信元配置载波对应的CIF索引。假设RRC配置载波C由载波A跨载波调度并且配置载波C对应的CIF索引为1,在载波A上DCI中的CIF域指示CIF索引为1的情况下,此DCI在载波C上调度PDSCH。需要说明的是,DCI格式1_0中不能配置CIF域,即DCI格式1_0只能用于自调度而不能用于跨载波调度;DCI格式1_1和DCI格式1_2中可以配置CIF域,即可以用于跨载波调度。
在RRC配置载波为自调度的情况下,DCI格式1_0、DCI格式1_1和DCI格式1_2用于调度本载波上的PDSCH;在RRC配置载波为跨载波调度的情况下,调度载波上的DCI(DCI格式1_1和DCI格式1_2)的CIF域每次调度只能指示一个CIF索引,一个CIF索引只能对应一个载波。在跨载波调度的情况下,DCI格式1_1和DCI格式1_2每次调度都只能调度一个载波上的PDSCH。如果基站要在多个载波上调度PDSCH,基站需要发送多个DCI,从而导致5G系统传输控制信令的负载较高。
在现有5G系统及标准中,基站需要指示时隙偏移K
0、起点长度指示值(Start Length Indicator Value,SLIV)和PDSCH映射类型用于确定调度的PDSCH所在的时隙和符号。RRC在PDSCH的时域资源分配表(Time Domain Resource Allocation List)信元中配置一个或多个PDSCH的时域资源分配(Time Domain Resource Allocation)信元。PDSCH的时域资源分配信元由PDSCH-TimeDomainResourceAllocation指示。每个PDSCH的时域资源分配(Time Domain Resource Allocation)信元中包含信元k0、映射类型(mappingType)和起点长度指示值(Start Length Indicator Value),其中k0指示PDSCH的K
0,mappingType指示PDSCH的映射类型,Start Length Indicator Value指示PDSCH的SLIV。DCI中的时域资源分配(Time Domain Resource Assignment,TDRA)域指示TDRA索引,TDRA索引0对应 PDSCH-TimeDomainResourceAllocationList信元中的第一个PDSCH-TimeDomainResourceAllocation,TDRA索引1对应PDSCH-TimeDomainResourceAllocationList信元中的第二个PDSCH-TimeDomainResourceAllocation,以此类推。因此,UE根据DCI中TDRA域指示的TDRA索引,可以确定调度的PDSCH的K
0、SLIV和PDSCH映射类型从而确定PDSCH所在时隙和符号。
由于DCI在每次调度时只能通过TDRA域指示一个K
0、一个SLIV和一个PDSCH映射类型,从而限制了一个DCI每次只能在一个载波上调度PDSCH。如果基站要在多个载波上调度PDSCH,基站需要发送多个DCI,从而导致5G系统传输控制信令的负载较高。
因此,在现有5G系统及标准中,DCI调度PDSCH的机制存在较多限制,导致DCI在每次调度时只能调度一个载波上的PDSCH。为了降低系统传输控制信令的负载,尤其是降低传输DCI的负载,如何进行PDSCH调度,是目前亟待解决的问题。
在一实施例中,图1是本申请实施例提供的一种信息调度方法的流程图。本实施例应用于第一通信节点。示例性地,第一通信节点为UE。如图1所示,本实施例包括S110-S130。
S110、接收第二通信节点发送的PDSCH配置信息。
在实施例中,第二通信节点可以为基站和网络侧(比如,网络侧可以为核心网)。在实施例中,PDSCH配置信息用于对第二通信节点和第一通信节点配置DCI在至少一个载波上PDSCH的调度信息。
S120、接收第二通信节点下发的DCI。
在实施例中,DCI中包括各种不同的域,比如,DCI中包括:CIF域、TDRA 域等。在实施例中,PDSCH配置信息就是对DCI中的CIF域和/或TDRA域中所指示的信息配置具体的参数。
S130、根据PDSCH配置信息和DCI确定至少一个载波上PDSCH的调度信息。
在实施例中,在第一通信节点接收到PDSCH配置信息和DCI之后,可根据PDSCH配置信息和DCI中不同域指示的信息确定每个载波上PDSCH的调度信息。
在一实施例中,调度信息至少包括下述一项:当前调度的载波数量、时域资源指示信息、当前调度PDSCH的载波、当前调度PDSCH的CIF索引。
在实施例中,当前调度的载波数量,指的是DCI当前调度的载波数量,比如,当前调度的载波数量可以为一个或多个。时域资源指示信息,指的是DCI当前调度的PDSCH所占用时域资源的相关信息。当前调度PDSCH的载波,指的是DCI当前调度PDSCH所在的载索引,比如,RRC信令配置五个载波,载波索引分别为载波1、载波2、载波3、载波4和载波5,并且当前调度PDSCH的载波为载波2和载波3,则当前调度PDSCH的载波指的是载波2和载波3。当前调度PDSCH的CIF索引,指的是DCI当前调度PDSCH所在载波对应的CIF索引,即在CIF索引和当前PDSCH所在载波之间存在映射关系。
在一实施例中,PDSCH配置信息,包括:DCI可调度的总载波数量M;用于指示DCI当前调度一个或N个载波上PDCSH的无线网络临时标识(Radio Network Temporary Identifier,RNTI),N为大于1的正整数并且N小于等于M。
在实施例中,DCI可调度的总载波数量,指的是RRC信令配置的DCI可以用于调度的总载波的数量;DCI当前调度一个或N个载波,属于DCI可调度的总载波的子集,即N小于等于DCI可调度的总载波数量。示例性地,假设DCI 可调度的总载波数量为5个,即M=5,则RNTI指示的DCI当前调度的一个或N个载波,为5个可调度总载波中的其中一个或多个,并且,N小于等于5。
在一实施例中,PDSCH配置信息,包括:CIF索引与载波之间的映射关系,每个CIF索引映射至至少一个载波。
在实施例中,CIF索引可以与一个或多个载波建立映射关系,即在CIF索引和DCI当前调度的每个载波之间建立映射关系,在第一通信节点接收到第二通信节点发送的PDSCH配置信息之后,即可确定DCI当前调度哪个载波上的PDSCH。在实施例中,第二通信节点配置CIF索引与载波之间的映射关系,并通过RRC信令向第一通信节点通知CIF索引与载波之间的映射关系。
在一实施例中,DCI中的CIF域指示CIF索引,CIF索引映射的载波为DCI当前调度PDCSH的载波;
在CIF域指示的CIF索引映射至N个载波的情况下,DCI用于在N个载波上调度PDCSH,且在每个载波上调度一个PDSCH,N为大于1的正整数;
在CIF域指示的CIF索引映射至一个载波的情况下,DCI用于在一个载波上调度PDCSH。
在实施例中,在CIF索引与至少两个载波之间建立映射关系的情况下,第一通信节点通过PDSCH配置信息确定CIF域中的CIF索引,即可以确定DCI当前调度的载波索引。在一实施例中,在每个载波上只能调度一个PDSCH,则在CIF索引对应多个载波索引的情况下,DCI可直接在多个载波上调度PDSCH,并且,每个载波上调度一个PDSCH,从而实现了通过PDSCH配置信息即可调度一个或多个载波上的PDSCH,降低了传输控制信令的负载。
在一实施例中,PDSCH配置信息,包括:TDRA索引与至少一组时域资源指示信息之间的映射关系,每组时域资源指示信息包括:时隙偏移K
0、SLIV和 PDSCH映射类型。
在一实施例中,每组时域资源指示信息包含相同的K
0。
在一实施例中,每组时域资源指示信息包含相同的SLIV。
在一实施例中,PDSCH配置信息,还包括:每组时域资源指示信息与载波之间的映射关系。
在一实施例中,DCI中的TDRA域指示TDRA索引;
在TDRA索引映射至N组时域资源指示信息的情况下,DCI用于在N组时域资源指示信息对应的载波上调度PDSCH,且在每个载波上调度一个PDSCH,N为大于1的正整数;
在TDRA索引映射至一组时域资源指示信息的情况下,DCI用于在一组时域资源指示信息对应的载波上调度PDSCH。
在实施例中,第二通信节点通知第一通信节点TDRA索引与至少一组时域资源指示信息之间的映射关系,并通知每组时域资源指示信息与载波之间的映射关系。在通过PDSCH配置信息配置DCI中TDRA域指示的TDRA索引,即可根据TDRA索引与时域资源指示信息之间的映射关系,以及每组时域资源指示信息与载波之间的映射关系,确定DCI当前调度的载波索引。在DCI在至少两组时域资源指示信息对应的载波上调度PDSCH的情况下,每个载波上调度一个PDSCH;在TDRA索引映射至一组时域资源指示信息的情况下,DCI在该组时域资源指示信息对应的载波上调度PDSCH。
在一实施例中,DCI中的CIF域与TDRA域联合指示TDRA索引。在实施例中,可通过CIF域所占用的比特位以及对应的十进制值,以及TDRA域所占用的比特位以及对应的十进制值,指示TDRA索引。
在一实施例中,DCI中的CIF域指示CIF索引,CIF索引映射至至少一个载 波;DCI中的TDRA域指示TDRA索引;
在DCI中CIF域指示的CIF索引映射至N个载波,以及DCI中TDRA域指示的TDRA索引映射至N组时域资源指示信息的情况下,DCI用于在N个载波上调度PDSCH,且在每个载波上调度一个PDSCH,N为大于1的正整数;
在DCI中CIF域指示的CIF索引映射至一个载波,以及DCI中TDRA域指示的TDRA索引映射至一组时域资源指示信息的情况下,DCI用于在一个载波上调度PDSCH。
在实施例中,第二通信节点向第一通信节点通知TDRA索引与至少一组时域资源指示信息之间的映射关系,以及DCI中CIF域指示的CIF索引映射至至少一个载波。若在DCI中CIF域指示的CIF索引映射至至少两个载波,以及DCI中TDRA域指示的TDRA索引映射至至少两组时域资源指示信息的情况下,DCI在至少两个载波上调度PDSCH,并且在每个载波上调度一个PDSCH。在一实施例中,在DCI中CIF域指示的CIF索引映射至一个载波,以及DCI中TDRA域指示的TDRA索引映射至一组时域资源指示信息的情况下,DCI在这个载波上调度PDSCH。
在一实施例中,DCI中TDRA域指示的TDRA索引映射的时域资源指示信息的组数与DCI中CIF域指示的CIF索引映射的载波数相等。在实施例中,TDRA索引映射N组时域资源指示信息的情况下,CIF索引映射的载波数也是N个。其中,N为大于1的正整数。
在一实施例中,采用DCI中CIF域指示CIF索引,CIF索引映射至一个CIF索引为i的载波;在DCI中TDRA域指示的TDRA索引映射至N组时域资源指示信息的情况下,DCI在CIF索引分别为i mod M、(i+1)mod M……(i+N-1)mod M的N个载波上调度PDSCH,且每个载波上调度一个PDSCH;M为DCI可调度的 总载波数量,N为大于1的正整数,mod为取余操作。
在一实施例中,DCI指示两个CIF域,且每个CIF域指示一个CIF索引,以及每个CIF索引映射至一个载波上。在实施例中,RRC为第一通信节点配置多个载波,并且在每个载波与CIF索引之间建立映射关系,即一个CIF索引映射至一个载波上。在DCI指示两个CIF域的情况下,可根据每个CIF域指示的CIF索引,以及CIF索引与载波之间的映射关系,即可确定当前调度PDSCH所在的载波。
在一实施例中,PDSCH配置信息,包括:CIF索引与两组载波之间的映射关系,第一组载波包含一个载波,第二组载波包含至少一个载波。
在一实施例中,在CIF索引对应第一组载波的情况下,DCI用于在第一组载波中由CIF索引映射的一个载波上调度PDSCH;
在CIF索引对应第二组载波的情况下,DCI用于在第二组载波中由CIF索引映射的至少一个载波上调度PDSCH,且每个载波上调度一个PDSCH。
在实施例中,第二通信节点向第一通信节点通知CIF索引与两组载波之间的映射关系。第二通信节点向第一通信节点通知当前DCI中CIF索引对应第一组载波,还是对应第二组载波。在一实施例中,在DCI中CIF索引对应第一组载波的情况下,CIF域中的CIF索引在第一组载波中映射一个载波,DCI在这个载波上调度PDSCH。在一实施例中,在DCI中CIF索引与第二组载波对应的情况下,,CIF域中的CIF索引在第二组载波中映射至少一个载波,DCI在这至少一个载波上调度PDSCH。在DCI中CIF域指示的CIF索引映射至N个载波的情况下,DCI在N个载波上调度PDSCH,并且在每个载波上调度一个PDSCH,N为大于1的正整数。
在一实施例中,PDSCH配置信息包括:时域资源指示信息;在时域资源指 示信息中K
0等于0的情况下,K
0用于指示每个载波上PDSCH的调度时刻与对应物理下行控制信道(Physical Downlink Control CHannel,PDCCH)之间满足预设时间的第一个时隙。
在实施例中,在一个DCI调度多个载波上的PDSCH的情况下,由于每个载波的子载波间隔不同,每个载波上调度PDSCH的时刻与PDCCH之间的时间间隔不同。为了降低在载波上的调度时延,可对K
0等于0进行重解释,即不同载波对K
0等于0有不同的解释,以满足每个载波上PDSCH的调度时刻与对应PDCCH之间的预设时间,从而提高调度的灵活性并降低调度时延。
图2是本申请实施例提供的另一种信息调度方法的流程图。本实施例应用于第二通信节点。示例性地,第二通信节点可以为基站或网络侧(核心网)。如图2所示,本实施例包括S210-S230。
S210、将预先确定的PDSCH配置信息发送至第一通信节点。
S220、根据PDSCH配置信息确定用于调度至少一个载波上PDSCH的DCI。
S230、将DCI发送至第一通信节点。
在一实施例中,PDSCH配置信息,包括:DCI可调度的总载波数量M;用于指示DCI当前调度一个或N个载波上PDCSH的无线网络临时标识RNTI,N为大于1的正整数并且N小于等于M。
在一实施例中,PDSCH配置信息,包括:载波指示域CIF索引与载波之间的映射关系,每个CIF索引映射至至少一个载波。
在一实施例中,DCI中的CIF域指示CIF索引,CIF索引映射的载波为DCI当前调度PDCSH的载波;
在CIF域指示的CIF索引映射至N个载波的情况下,DCI用于在N个载波上调度PDCSH,且在每个载波上调度一个PDSCH,N为大于1的正整数;
在CIF域指示的CIF索引映射至一个载波的情况下,DCI用于在一个载波上调度PDCSH。
在一实施例中,PDSCH配置信息,包括:时域资源分配TDRA索引与至少一组时域资源指示信息之间的映射关系,每组时域资源指示信息包括:时隙偏移K
0、起点长度指示值SLIV和PDSCH映射类型。
在一实施例中,每组时域资源指示信息包含相同的K
0。
在一实施例中,每组时域资源指示信息包含相同的SLIV。
在一实施例中,PDSCH配置信息,还包括:每组时域资源指示信息与载波之间的映射关系。
在一实施例中,DCI中的TDRA域指示TDRA索引;
在TDRA索引映射至N组时域资源指示信息的情况下,DCI用于在N组时域资源指示信息对应的载波上调度PDSCH,且在每个载波上调度一个PDSCH,N为大于1的正整数;
在TDRA索引映射至一组时域资源指示信息的情况下,DCI用于在一组时域资源指示信息对应的载波上调度PDSCH。
在一实施例中,DCI中的CIF域与TDRA域联合指示TDRA索引。
在一实施例中,DCI中的CIF域指示CIF索引,CIF索引映射到至少一个载波;DCI中的TDRA域指示TDRA索引;
在DCI中CIF域指示的CIF索引映射至N个载波,以及DCI中TDRA域指示的TDRA索引映射至N组时域资源指示信息的情况下,DCI用于在N个载波上调度PDSCH,且在每个载波上调度一个PDSCH,N为大于1的正整数;
在DCI中CIF域指示的CIF索引映射至一个载波,以及DCI中TDRA域指示的TDRA索引映射至一组时域资源指示信息的情况下,DCI用于在一个载波 上调度PDSCH。
在一实施例中,DCI中TDRA域指示的TDRA索引映射的时域资源指示信息的组数与DCI中CIF域指示的CIF索引映射的载波数相等。
在一实施例中,采用DCI中CIF域指示CIF索引,CIF索引映射至一个CIF索引为i的载波;
在DCI中TDRA域指示的TDRA索引映射至N组时域资源指示信息的情况下,DCI在CIF索引分别为i mod M、(i+1)mod M……(i+N-1)mod M的N个载波上调度PDSCH,且每个载波上调度一个PDSCH;M为DCI可调度的总载波数量,N为大于1的正整数,mod为取余操作。
在一实施例中,DCI指示两个CIF域,且每个CIF域指示一个CIF索引,以及每个CIF索引映射至一个载波上。
在一实施例中,PDSCH配置信息,包括:CIF索引与两组载波之间的映射关系,第一组载波包含一个载波,第二组载波包含至少一个载波。
在一实施例中,在CIF索引对应第一组载波的情况下,DCI用于在第一组载波中由CIF索引映射的一个载波上调度PDSCH;
在CIF索引对应第二组载波的情况下,DCI用于在第二组载波中由CIF索引映射的至少一个载波上调度PDSCH,且每个载波上调度一个PDSCH。
在一实施例中,PDSCH配置信息包括:时域资源指示信息;在时域资源指示信息中K
0等于0的情况下,K
0用于指示每个载波上PDSCH的调度时刻与对应物理下行控制信道PDCCH之间满足预设时间的第一个时隙。
在一实现方式中,在现有5G系统及标准中,在RRC信令配置一个载波为跨载波调度的情况下,RRC信令为该载波配置对应的调度载波以及对应的CIF索引。在被同一个载波调度的所有载波中,每个CIF索引对应一个载波,每个 DCI每次只能在一个载波上调度PDSCH,从而增加了5G系统的传输控制信令的负载。
在实施例中,通过RRC信令在PDSCH配置信息中配置DCI可调度的总载波数量M,以及用于指示DCI当前调度一个或N个载波上PDCSH的RNTI,以降低5G系统的传输控制信令的负载。N为大于1的正整数并且N小于等于M。也就是说,通过RRC信令直接配置DCI可调度的总载波数量,第二通信节点配置不同的RNTI用于区分该DCI此次调度是调度一个载波上的PDSCH还是调度N个载波上的PDSCH。第二通信节点通过PDCCH信道将DCI传输给第一通信节点,第一通信节点通过盲检测PDCCH确定RNTI,从而确定DCI此次调度是调度一个载波上的PDSCH还是调度N个载波上的PDSCH。
假设RRC信令为第一通信节点配置了2个载波,即载波A(对应载波索引0)和载波B(对应载波索引1)。此时,DCI可调度的总载波数量为2。RRC信令配置载波A上的DCI调度载波索引为0的载波(即载波A)和载波索引为1的载波(即载波B)。此外,RRC信令配置两个RNTI,即RNTI1和RNTI2,其中,RNTI1用于指示载波A上的DCI此次调度一个载波(载波A)上的PDSCH,RNTI2用于指示载波A上的DCI此次调度2个载波(载波A和载波B)上的PDSCH。在第一通信节点在PDCCH信道上通过RNTI1盲检测到DCI的情况下,该DCI在载波A上调度PDSCH;在第一通信节点在PDCCH信道上通过RNTI2盲检测到DCI的情况下,该DCI在载波A和载波B上调度PDSCH,每个载波上调度一个PDSCH。
在一实现方式中,在现有5G系统及标准中,在RRC信令配置一个载波为跨载波调度的情况下,RRC信令为该载波配置对应的调度载波以及对应的CIF索引。在被同一个载波调度的所有载波中,每个CIF索引对应一个载波,即每 个DCI每次只能在一个载波上调度PDSCH,从而增加了5G系统的传输控制信令的负载。
在一实施例中,通过RRC信令在PDSCH配置信息中配置CIF索引与载波之间的映射关系,并且,每个CIF索引可映射至至少一个载波,以降低5G系统传输控制信令的负载。也就是说,第二通信节点向第一通信节点通知CIF索引与载波的映射关系,一个CIF索引映射至至少一个载波。在DCI中CIF域指示的CIF索引映射至N个载波的情况下,该DCI在N个载波上调度PDSCH,且每个载波上调度一个PDSCH,N为大于1的正整数;在DCI中CIF域指示的CIF索引映射至一个载波上的情况下,该DCI在该载波上调度PDSCH
在实施例中,第二通信节点通过RRC信令向第一通信节点通知CIF索引与载波的映射关系。RRC信令在至少一个载波上配置相同的调度载波和相同的CIF索引。在DCI中CIF域指示的CIF索引映射到N个载波上的情况下,该DCI在N个载波上调度PDSCH,每个载波上调度一个PDSCH,N为大于1的正整数;在DCI中CIF域指示的CIF索引映射到一个载波上的情况下,该DCI在这一个载波上调度PDSCH。在一实施例中,第二通信节点可通过媒体访问控制-控制单元(Media Access Control-Control Element,MAC CE)或DCI方式向第一通信节点通知CIF索引与至少一个载波的映射关系。
假设RRC信令配置载波A跨载波调度载波B、载波C和载波D。RRC信令配置载波A的载波索引为0,RRC信令配置载波B的调度载波索引和CIF索引分别为0和1,RRC信令配置载波C的调度载波索引和CIF索引分别为0和1,RRC信令配置载波D的调度载波索引和CIF索引分别为0和2。如果载波A上的DCI中CIF域指示的CIF索引为1,该DCI在载波B和载波C上分别调度一个PDSCH;如果载波A上的DCI中CIF域指示的CIF索引为2,该DCI在 载波D上调度PDSCH。
在一实施例中,第二通信节点通过RRC信令向第一通信节点通知CIF索引与载波的映射关系。RRC信令在调度载波上配置CIF索引与载波索引的映射关系。
假设RRC信令为第一通信节点配置了4个载波,即载波A、载波B、载波C和载波D,其对应的载波索引分别为0,1,2和3。RRC信令配置载波A跨载波调度载波B、载波C和载波D。表1是RRC信令配置的一种CIF索引与载波索引的映射关系表。如表1所示,在DCI中CIF域指示的CIF索引为0的情况下,该DCI调度载波A上的PDSCH;在DCI中CIF域指示CIF索引分别为1、2或3的情况下,该DCI分别调度对应的载波B、载波C或载波D上的PDSCH(即CIF索引为1,调度载波B上的PDSCH;CIF索引为2,调度载波C上的PDSCH;CIF索引为3,调度载波D上的PDSCH;);在DCI中CIF域指示CIF索引为4或5的情况下,由于该CIF索引映射至两个载波上,该DCI在对应的两个载波上调度PDSCH。在DCI中CIF域指示的CIF索引为4的情况下,该DCI在载波A和载波B上分别调度一个PDSCH;在DCI中CIF域指示的CIF索引为5的情况下,该DCI在载波C和载波D上分别调度一个PDSCH。在DCI中CIF域指示的CIF索引为6的情况下,该DCI在载波A、载波B和载波C上分别调度一个PDSCH;在DCI中CIF域指示的CIF索引为7的情况下,该DCI在载波A、载波B、载波C和载波D上分别调度一个PDSCH。
表1一种CIF索引与载波索引的映射关系表
CIF索引 | 载波索引 |
0 | 0 |
1 | 1 |
2 | 2 |
3 | 3 |
4 | 0和1 |
5 | 2和3 |
6 | 0和1和2 |
7 | 0和1和2和3 |
在一实施例中,表2是RRC信令配置的另一种CIF索引与载波索引的映射关系表。为了降低DCI的设计复杂度,5G系统可以限制每个DCI每次最多可以调度的载波数量。假设5G系统限制DCI每次最多调度2个载波,CIF索引与载波索引的映射关系如表2所述。在相同的背景下,表2的解释可以参考表1的解释,在此不再赘述。在一实施例中,第二通信节点可通过MAC CE或DCI方式向第一通信节点通知上述CIF索引与两组载波的映射关系。
表2另一种CIF索引与载波索引的映射关系表
CIF索引 | 载波索引 |
0 | 0 |
1 | 1 |
2 | 2 |
3 | 3 |
4 | 0和1 |
5 | 1和2 |
6 | 2和3 |
7 | 0和2 |
在一实现方式中,在现有5G系统及标准中,DCI信令通过CIF域指示被调度的载波,通过TDRA域指示被调度载波上PDSCH所在时隙和符号。由于DCI中CIF域每次调度只能指示一个载波,TDRA域只能指示在这一个载波上调度的PDSCH所在时隙和符号,从而限制了一个DCI在多个载波上调度PDSCH的 实现。
在一实施例中,第二通信节点通过RRC信令在PDSCH配置信息中配置TDRA索引与至少一组时域资源指示信息的映射关系,每组时域资源指示信息包含一个K
0、一个SLIV和一个PDSCH映射类型。第二通信节点向第一通信节点通知每组时域资源指示信息与载波的映射关系,以实现一个DCI在至少一个载波上调度PDSCH。DCI中TDRA域指示TDRA索引,在TDRA索引映射至N组时域资源指示信息的情况下,该DCI在N组时域资源指示信息对应的载波上调度PDSCH,每个载波上调度一个PDSCH,N为大于1的正整数;在TDRA索引映射至一组时域资源指示信息的情况下,该DCI在这组时域资源指示信息对应的载波上调度PDSCH。在一实施例中,第二通信节点可通过MAC CE或DCI方式向第一通信节点通知上述TDRA索引与至少一组时域资源指示信息的映射关系。
表3是本申请实施例提供的一种TDRA索引、时域资源指示信息和载波三者之间的映射关系表。如表3所示,通过RRC信令配置多组时域资源指示信息,TDRA索引与时域资源指示信息的映射关系,以及时域资源指示信息与载波的映射关系。对于某一个TDRA索引,在某个载波未配置对应的K
0、SLIV和PDSCH映射类型的情况下,如果DCI中TDRA域指示该TDRA索引,则此DCI不在该载波上调度PDSCH。
假设RRC信令为第一通信节点配置了三个载波,分别是载波A、载波B和载波C。载波A跨载波调度载波B和载波C。TDRA索引0对应载波A上的时域资源指示信息,在DCI中TDRA域指示TDRA索引0的情况下,DCI在载波A上调度PDSCH,并且此PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_A0、S_A0和M_A0。同样地,TDRA索引1和TDRA索引2分别对应载波 B和在C上的时域资源指示信息,在DCI中TDRA域指示TDRA索引1或TDRA索引2,则DCI分别在载波B或载波C上调度PDSCH。
TDRA索引3对应载波A和载波B上的时域资源指示信息,在DCI中TDRA域指示TDRA索引3,则DCI在载波A和载波B上调度PDSCH,每个载波上调度一个PDSCH。在此次调度中,载波A上调度的PDSCH的K
0、SLIV和PDSCH映射类型分别是K0_A3、S_A3和M_A3;载波B上调度的PDSCH的K
0、SLIV和PDSCH映射类型分别是K0_B3、S_B3和M_B3。同样地,如果DCI中的TDRA域指示TDRA索引4,则DCI在载波B和载波C上调度PDSCH,每个载波上调度一个PDSCH;如果DCI中的TDRA域指示TDRA索引5,则DCI在载波A和载波C上调度PDSCH,每个载波上调度一个PDSCH。
TDRA索引6对应载波A、载波B和载波C上的时域资源指示信息,在DCI中的TDRA域指示TDRA索引6的情况下,DCI在载波A、载波B和载波C上调度PDSCH,每个载波上调度一个PDSCH。在此次调度中,载波A上调度的PDSCH的K
0、SLIV和PDSCH映射类型分别是K0_A6、S_A6和M_A6;载波B上调度的PDSCH的K
0、SLIV和PDSCH映射类型分别是K0_B6、S_B6和M_B6;波C上调度的PDSCH的K
0、SLIV和PDSCH映射类型分别是K0_C6、S_C6和M_C6。
表3一种TDRA索引、时域资源指示信息和载波三者之间的映射关系表
在一实施例中,第二通信节点向第一通信节点通知TDRA索引与至少一组时域资源指示信息的映射关系,每组时域资源指示信息包含一个K
0、一个SLIV和一个PDSCH映射类型。所述至少一组时域资源指示信息包含相同的K
0。在一实施例中,第二通信节点可通过MAC CE或DCI方式向第一通信节点通知上述TDRA索引与至少一组时域资源指示信息的映射关系。在一实施例中,第二通信节点可通过MAC CE或DCI方式向第一通信节点通知上述每组时域资源指示信息与载波的映射关系。
第二通信节点向第一通信节点通知每组时域资源指示信息与载波的映射关系。DCI中的TDRA域指示TDRA索引,在TDRA索引映射至N组时域资源指示信息的情况下,该DCI在这N组时域资源指示信息对应的载波上调度PDSCH,每个载波上调度一个PDSCH,N为大于1的正整数;在TDRA索引映射至一组时域资源指示信息的情况下,该DCI在这组时域资源指示信息对应的载波上调度PDSCH。在一实施例中,基站可通过MAC CE或DCI方式通知上述TDRA索引与至少一组时域资源指示信息的映射关系。
表4是本申请实施例提供的另一种TDRA索引、时域资源指示信息和载波三者之间的映射关系表。如表4所示,通过RRC信令配置至少一组时域资源指示信息,并且所述至少一组时域资源指示信息包含相同的K
0。对于某一个TDRA索引,在某个载波未配置对应的SLIV和PDSCH映射类型的情况下,如果DCI 中TDRA域指示该TDRA索引,该DCI不在该载波上调度PDSCH。
假设RRC信令为第一通信节点配置了三个载波,分别是载波A、载波B和载波C。载波A跨载波调度载波B和载波C。TDRA索引0对应载波A上的时域资源指示信息,在DCI中的TDRA域指示TDRA索引0的情况下,DCI在载波A上调度PDSCH并且此PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_0、S_A0和M_A0。同样地,TDRA索引1和TDRA索引2分别对应载波B和载波C上的时域资源指示信息,在DCI中的TDRA域指示TDRA索引1或TDRA索引2的情况下,DCI调度分别在载波B或载波C上调度PDSCH。
TDRA索引3对应载波A和载波B上的时域资源指示信息,在DCI中的TDRA域指示TDRA索引3的情况下,DCI在载波A和载波B上调度PDSCH,每个载波上调度一个PDSCH。在此次调度中,载波A上调度的PDSCH的K
0、SLIV和PDSCH映射类型分别是K0_3、S_A3和M_A3;载波B上调度的PDSCH的K
0、SLIV和PDSCH映射类型分别是K0_3、S_B3和M_B3。同样地,在DCI中的TDRA域指示TDRA索引4的情况下,DCI调度载波B和载波C上的PDSCH,每个载波上调度一个PDSCH;在DCI中的TDRA域指示TDRA索引5的情况下,DCI调度载波A和载波C上的PDSCH,每个载波上调度一个PDSCH。
TDRA索引6对应载波A、载波B和载波C上的时域资源指示信息,在DCI中的TDRA域指示TDRA索引6的情况下,DCI在载波A、载波B和载波C上调度PDSCH,每个载波上调度一个PDSCH。在此次调度中,载波A上调度的PDSCH的K
0、SLIV和PDSCH映射类型分别是K0_6、S_A6和M_A6;载波B上调度的PDSCH的K
0、SLIV和PDSCH映射类型分别是K0_6、S_B6和M_B6;波C上调度的PDSCH的K
0、SLIV和PDSCH映射类型分别是K0_6、S_C6和M_C6。
表4另一种TDRA索引、时域资源指示信息和载波三者之间的映射关系表
在一实现方式中,在现有5G系统及标准中,DCI通过CIF域指示被调度的载波,通过TDRA域指示被调度载波上PDSCH所在时隙和符号。在上述在TDRA索引和时域资源指示信息之间,以及时域资源指示信息与载波建立映射关系的实施例中,第一通信节点通过DCI中的TDRA域确定DCI当前调度PDSCH所在的载波,此时CIF域可不用做载波指示。
在实施例中,为了充分利用CIF域,利用CIF域与TDRA域联合指示TDRA索引。假设CIF域由X(X为正整数)比特表示,并且其对应的十进制值为CIF_X;TDRA域由Y(Y为正整数)比特表示,并且其对应的十进制值为TDRA_Y。在由CIF域与TDRA域联合指示TDRA索引,并且CIF域作为高比特位,TDRA域作为低比特位的情况下,CIF域与TDRA域联合指示的TDRA索引为CIF_X*2^Y+TDRA_Y,即TDRA索引为CIF_X与2的Y次方的乘积值,再与TDRA_Y的之和。在CIF域作为低比特位,TDRA域作为高比特位的情况下,CIF域与TDRA域联合指示的TDRA索引为TDRA_Y*2^X+CIF_X,即TDRA索引为TDRA_Y与2的X次方的乘积值,再与CIF_X的之和。
在单独由TDRA域指示TDRA索引的情况下,最多可以有2^Y种配置;在由CIF域与TDRA域联合指示TDRA索引的情况下,最多可以指示2^(X+Y)种配置,从而增加了TDRA索引的范围,提高TDRA表格配置的灵活性。
假设CIF域由3比特表示,TDRA域由4比特表示,在单独用TDRA域指示TDRA索引的情况下,最多只能指示16种配置;在CIF域与TDRA域联合指示TDRA索引的情况下,一共7比特,最多能指示128中配置。假设以CIF域作为高比特位,TDRA域当做低比特位,在CIF域指示的十进制值为2并且TDRA域指示的十进制值为7,则CIF域与TDRA域联合指示的TDRA索引为2*2^4+7=39。示例性地,表5是本申请实施例提供的一种CIF域与TDRA域联合指示TDRA索引范围的示意表。如表5所示,此时DCI指示载波A和载波B上的时域资源指示信息。
假设以CIF域作为低比特位,TDRA域当做高比特位,在CIF域指示的十进制值为2并且TDRA指示的十进制值为7的情况下,CIF域与TDRA域联合指示的TDRA索引为7*2^3+2=58。如表5所示,此时DCI指示载波A和载波C上的时域资源指示信息。
表5一种CIF域与TDRA域联合指示TDRA索引范围的示意表
在一实现方式中,在现有5G系统及标准中,由于DCI中的CIF域每次调度只能支持一个载波,TDRA域只能指示在这一个载波上调度的PDSCH所在时隙和符号,从而限制了一个DCI在多个载波上调度PDSCH的实现,增加了传输控制信令的负载。
在实施例中,第二通信节点向第一通信节点通知TDRA索引与至少一组时域资源指示信息的映射关系,每组时域资源指示信息包含一个K
0、一个SLIV和一个PDSCH映射类型,以及DCI中的CIF域指示CIF索引,CIF索引映射至至少一个载波,以实现一个DCI在多个载波上调度PDSCH。在DCI中的CIF域指示的CIF索引映射至N个载波,以及DCI中的TDRA域指示的TDRA索引映射至N组时域资源指示信息的情况下,该DCI在N个载波上调度PDSCH,且每个载波上调度一个PDSCH,每组时域资源指示信息对应一个载波上调度的PDSCH,N为大于1的正整数;在DCI中的CIF域指示的CIF索引映射至一个载波,DCI中的TDRA域指示的TDRA索引映射至一组时域资源指示信息的情况下,该DCI在这个载波上调度PDSCH。
在一实施例中,DCI中TDRA域指示的TDRA索引映射的时域资源指示信息的组数与DCI中CIF域指示的CIF索引映射的载波数相等。
表6是本申请实施例提供的又一种TDRA索引、时域资源指示信息和载波之间的映射关系表。如表6所示,在一个TDRA表格中配置多组时域资源指示信息。假设RRC信令为第一通信节点配置了三个载波,分别是载波A、载波B和载波C。载波A跨载波调度载波B和载波C。CIF域指示一个或者多个载波已在上述实施例中描述,在此不再赘述。在DCI中的CIF域指示载波A,TDRA域指示的TDRA索引为0的情况下,则该DCI在载波A上调度PDSCH并且PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_10、S_10和M_10。如果DCI中的CIF域指示载波B,TDRA域指示的TDRA索引为0,则该DCI在载波B上调度PDSCH并且PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_10、S_10和M_10。
如果DCI中的CIF域指示载波A和载波B,为了保证DCI中TDRA域指示的TDRA索引映射的时域资源指示信息的组数与DCI中的CIF域指示的CIF索引映射的载波数相等,TDRA域指示的TDRA索引只能是3、4或5。假设TDRA域指示的TDRA索引是4,则该DCI在载波A和载波B上调度PDSCH,载波A上调度的PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_14、S_14和M_14;载波B上调度的PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_24、S_24和M_24。如果DCI中的CIF域指示载波B和载波C,TDRA域指示的TDRA索引是4,则该DCI在载波B和载波C上调度PDSCH,载波B上调度的PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_14、S_14和M_14;载波C上调度的PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_24、S_24和M_24。
如果DCI中的CIF域指示载波A、载波B和载波C,为了保证DCI中的TDRA域指示的TDRA索引映射的时域资源指示信息的组数与DCI中的CIF域指示的CIF索引映射的载波数相等,TDRA域指示的TDRA索引只能是6,则该DCI在载波A、载波B和载波C上调度PDSCH,载波A上调度的PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_16、S_16和M_16;载波B上调度的PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_26、S_26和M_26;载波C上调度的PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_36、S_36和M_36。
表6又一种TDRA索引、时域资源指示信息和载波之间的映射关系表
在一实施例中,第二通信节点向第一通信节点通知TDRA索引与至少一组时域资源指示信息的映射关系,每组时域资源指示信息包含一个K
0、一个SLIV和一个PDSCH映射类型。所述至少一组时域资源指示信息包含相同的K
0。
DCI中的CIF域指示CIF索引,CIF索引映射至至少一个载波。在DCI中 CIF域指示的CIF索引映射至N个载波,DCI中的TDRA域指示的TDRA索引映射至N组时域资源指示信息的情况下,该DCI在N个载波上调度PDSCH,每个载波上调度一个PDSCH,每组时域资源指示信息对应一个载波上调度的PDSCH,N为大于1的正整数;在DCI中CIF域指示的CIF索引映射至一个载波的情况下,DCI中的TDRA域指示的TDRA索引映射至一组时域资源指示信息,该DCI在这个载波上调度PDSCH。在一实施例中,DCI中TDRA域指示的TDRA索引映射的时域资源指示信息的组数与DCI中CIF域指示的CIF索引映射的载波数相等。
表7是本申请实施例提供的再一种TDRA索引、时域资源指示信息和载波的映射关系表。如表7所示,在一个TDRA表格中配置多组时域资源指示信息并且多组时域资源指示信息包含相同的K
0。假设RRC信令为第一通信节点配置了三个载波,分别是载波A、载波B和载波C。载波A跨载波调度载波B和载波C。CIF指示一个或者多个载波已在上述实施例中描述,在此不再赘述。在DCI中的CIF域指示载波A,TDRA域指示的TDRA索引为0,则该DCI在载波A上调度PDSCH并且PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_0、S_10和M_10。在DCI中的CIF域指示载波B,TDRA域指示的TDRA索引为0的情况下,则该DCI在载波B上调度PDSCH并且PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_0、S_10和M_10。
在DCI中的CIF域指示载波A和载波B,为了保证DCI中的TDRA域指示的TDRA索引映射的时域资源指示信息的组数与DCI中的CIF域指示的CIF索引映射的载波数相等,TDRA域指示的TDRA索引只能是3、4或5。假设TDRA域指示的TDRA索引是4,该DCI在载波A和载波B上调度PDSCH,载波A上调度的PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_4、S_14和 M_14;载波B上调度的PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_4、S_24和M_24。在DCI中的CIF域指示载波B和载波C,TDRA域指示的TDRA索引是4的情况下,该DCI在载波B和载波C上调度PDSCH,载波B上调度的PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_4、S_14和M_14;载波C上调度的PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_4、S_24和M_24。
在DCI中的CIF域指示载波A、载波B和载波C的情况下,为了保证DCI中的TDRA域指示的TDRA索引映射的时域资源指示信息的组数与DCI中的CIF域指示的CIF索引映射的载波数相等,TDRA域指示的TDRA索引只能是6,则该DCI在载波A、载波B和载波C上调度PDSCH,载波A上调度的PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_6、S_16和M_16;载波B上调度的PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_6、S_26和M_26;载波C上调度的PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_6、S_36和M_36。
表7再一种TDRA索引、时域资源指示信息和载波的映射关系表
在一实现方式中,在现有5G系统及标准中,由于DCI的CIF域每次调度 只能支持一个载波,TDRA域只能指示在这一个载波上调度的PDSCH所在时隙和符号,从而限制了一个DCI在多个载波上调度PDSCH的实现,增加了传输控制信令的负载。
在实施例中,在DCI中的CIF域指示CIF索引为i的载波,DCI中TDRA域指示的TDRA索引映射至N(N为大于1的正整数)组时域资源指示信息的情况下,该DCI在CIF索引分别为i mod M、(i+1)mod M……(i+N-1)mod M的N个载波上调度PDSCH,每个载波上调度一个PDSCH,每组时域资源指示信息对应一个载波上调度的PDSCH。其中,mod表示取余操作,M是RRC信令配置的可被调度载波调度的总载波数量,从而实现了一个DCI调度多个载波上的PDSCH,进而降低了第二通信节点传输控制信令的负载,以及第一通信节点可以分配更少的能量用于检测DCI,即有助于第一通信节点节能。
在实施例中,本实现方式适用于N组时域资源指示信息包含相同的K
0的场景(即上述实施例中表7的例子),也适用于N组时域资源指示信息不包含相同的K
0的场景(即上述实施例中表6的例子)。在本实现方式中,以表6为例进行说明。
假设RRC信令为第一通信节点配置了三个载波,分别是载波A、载波B和载波C。载波A、载波B和载波C的载波CIF索引分别是0、1和2。载波A跨载波调度载波B和载波C。M是RRC配置的被载波A调度的总载波数量,载波A可以调度载波A、载波B和载波C,即M=3。
在DCI中CIF域指示的CIF索引映射至载波索引为0的载波(即载波A),TDRA域指示的TDRA索引为0的情况下,此时i=0,则该DCI在索引为0的载波(载波A)上调度PDSCH并且该PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_10、S_10和M_10。
在DCI中CIF域指示的CIF索引映射至载波索引为0的载波(即载波A),TDRA域指示的TDRA索引是4的情况下,此时i=0,则DCI在索引为0的载波(载波A)和索引为1的载波(载波B)上调度PDSCH。载波A上调度的PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_14、S_14和M_14;载波B上调度的PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_24、S_24和M_24。
在DCI中CIF域指示的CIF索引映射至载波索引为1的载波(即载波B),TDRA域指示的TDRA索引是4的情况下,此时i=1,则DCI在索引为1的载波(载波B)和索引为2的载波(载波C)上调度PDSCH。载波B上调度的PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_14、S_14和M_14;载波C上调度的PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_24、S_24和M_24。
在DCI中CIF域指示的CIF索引映射至载波索引为2的载波(即载波C),TDRA域指示的TDRA索引是4的情况下,此时i=2,则DCI在索引为2的载波(载波C)和索引为0的载波(载波A)上调度PDSCH。载波C上调度的PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_14、S_14和M_14;载波A上调度的PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_24、S_24和M_24。
在DCI中CIF域指示的CIF索引映射至载波索引为0的载波(即载波A)的,TDRA域指示的TDRA索引是6的情况下,此时i=0,则DCI在索引为0的载波(载波A)、索引为1的载波(载波B)和索引为2的载波(载波C)上调度PDSCH。载波A上调度的PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_16、S_16和M_16;载波B上调度的PDSCH对应的K
0、SLIV和PDSCH 映射类型分别为K0_26、S_26和M_26;载波C上调度的PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_36、S_36和M_36。
在DCI中的CIF域指示的CIF索引映射至载波索引为2的载波(载波C),TDRA域指示的TDRA索引是6的情况下,此时i=2,则DCI在索引为2的载波(载波C)、索引为0的载波(载波A)和索引为1的载波(载波B)上调度PDSCH。载波C上调度的PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_16、S_16和M_16;载波A上调度的PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_26、S_26和M_26;载波B上调度的PDSCH对应的K
0、SLIV和PDSCH映射类型分别为K0_36、S_36和M_36。
在上述实施例中,表3-7中的K
0、SLIV和PDSCH映射类型为现有技术,在此不再赘述。
在一实现方式中,在现有5G系统及标准中,由于DCI中的CIF域每次调度只能支持一个载波,TDRA域只能指示在这一个载波上调度的PDSCH所在时隙和符号,从而限制了一个DCI在多个载波上调度PDSCH的实现,增加了5G系统传输控制信令的负载。
在实施例中,DCI指示两个CIF域,每个CIF域指示一个CIF索引,以及每个CIF索引映射至一个载波上。在DCI在两个CIF域指示的CIF索引映射的载波上调度PDSCH,每个载波上调度一个PDSCH,从而实现了一个DCI调度多个载波上的PDSCH。
假设RRC信令为第一通信节点配置了三个载波,分别是载波A、载波B和载波C。载波A跨载波调度载波B和载波C,载波A、载波B和载波C的CIF索引分别是0、1和2。
在DCI中的两个CIF域分别指示CIF索引0和CIF索引1的情况下,该DCI 在载波A和载波B上调度PDSCH,每个载波上调度一个PDSCH。在DCI中的两个CIF域分别指示CIF索引1和CIF索引2的情况下,该DCI在载波B和载波C上调度PDSCH,每个载波上调度一个PDSCH。
在一实现方式中,在现有5G系统及标准中,由于DCI的CIF域每次调度只能支持一个载波,TDRA域只能指示在这一个载波上调度的PDSCH所在时隙和符号,限制了一个DCI在多个载波上调度PDSCH的实现,增加了5G系统传输控制信令的负载。
在实施例中,第二通信节点向第一通信节点通知CIF索引与两组载波的映射关系,第一组载波包含一个载波,第二组载波包含至少一个载波。第二通信节点向第一通信节点通知当前DCI中CIF索引对应第一组载波,还是对应第二组载波。在实施例中,第二通信节点可通过MAC CE或DCI方式向第一通信节点通知CIF索引与两组载波的映射关系。
在第二通信节点通知第一通信节点,DCI中CIF索引对应第一组载波的情况下,该DCI中CIF域指示的CIF索引在第一组载波中映射对应的一个载波,DCI在这个载波上调度PDSCH。
在第二通信节点通知第一通信节点,DCI中CIF索引与第二组载波对应的情况下,该DCI中CIF域指示的CIF索引在第二组载波中映射对应的至少一个载波。在DCI中CIF域指示的CIF索引映射至N个载波的情况下,该DCI在N个载波上调度PDSCH,每个载波上调度一个PDSCH,N为大于1的正整数;在DCI中CIF域指示的CIF索引映射至一个载波上,该DCI在该载波上调度PDSCH。
第二通信节点通过RRC信令向第一通信节点通知CIF索引与两组载波的映射关系。RRC信令在调度载波上配置CIF索引与载波索引的映射关系。假设RRC信令为第一通信节点配置了8个载波,即载波A、载波B、载波C、载波D、载 波E、载波F、载波G和载波H,其对应的载波索引分别为0、1、2、3、4、5、6和7。RRC信令配置载波A跨载波调度载波B、载波C、载波D、载波E、载波F、载波G和载波H。
表8是RRC信令配置的另一种CIF索引与载波索引的映射关系表。如表8所示,假设第二通信节点通过RRC信令配置通知第一通信节点,DCI中CIF索引对应第一组载波,则该DCI中CIF域指示的CIF索引在第一组载波中映射对应的载波。在实施例中,在DCI中CIF域指示的CIF索引为0,在第一组载波的载波索引中,CIF索引0映射至载波0,则该DCI在载波A上调度PDSCH;在DCI中CIF域指示的CIF索引为2,在第一组载波的载波索引中,CIF索引2映射至载波2,则该DCI在载波C上调度PDSCH。
假设第二通信节点通过RRC信令配置通知第一通信节点,DCI中CIF索引与第二组载波对应,则该DCI中的CIF域指示的CIF索引在第二组载波中映射对应的载波。在实施例中,在DCI中CIF域指示的CIF索引为0的情况下,在第二组载波的载波索引中,CIF索引0映射至载波0和载波1,则该DCI在载波A和载波B上调度PDSCH,每个载波上调度一个PDSCH;在DCI中的CIF域指示的CIF索引为1的情况下,在第二组载波的载波索引中,CIF索引1映射至载波1,则该DCI在载波B上调度PDSCH;在DCI中CIF域指示的CIF索引为6的情况下,在第二组载波的载波索引中,CIF索引6映射至载波0和载波1和载波2,则该DCI在载波A、载波B和在C上调度PDSCH,每个载波上调度一个PDSCH。
表8另一种CIF索引与载波索引的映射关系表
在一实现方式中,DCI通过PDCCH传输给第一通信节点,第一通信节点通过盲检测PDCCH获得对应的DCI信息。在跨载波调度,并且调度载波和被调度载波子载波间隔不一样的情况下,PDSCH调度需要满足预设的时间要求。在3GPP协议中定义了不同子载波间隔下对应的PDCCH处理时间,其中μ
PDCCH表示DCI所在载波的子载波间隔,N
pdsch表示PDCCH所需要的时间,以PDCCH的符号数为单位进行计数。表9是现有技术提供的一种μ
PDCCH和N
pdsch之间的映射关系表。如表9所示,μ
PDCCH为0表示PDCCH子载波间隔为15KHz,其对应PDCCH处理时间为4个符号;μ
PDCCH为1表示PDCCH子载波间隔为30KHz,其对应的PDCCH处理时间为5个符号;μ
PDCCH为2表示PDCCH子载波间隔为60KHz,其对应的PDCCH处理时间为10个符号;μ
PDCCH为3表示PDCCH子载波间隔为120KHz,其对应的PDCCH处理时间为14个符号。在PDCCH的子载波间隔小于其调度的PDSCH间隔的情况下,PDSCH只能在满足PDCCH处理时延后的下一个时隙开始传输。在PDCCH的子载波间隔大于其调度的PDSCH间隔的情况下,PDSCH只需要保证PDSCH与PDCCH之间的间隔大于对应的PDCCH处理时间即可。
表9一种μ
PDCCH和N
pdsch之间的映射关系表
μ PDCCH | N pdsch |
0 | 4 |
1 | 5 |
2 | 10 |
3 | 14 |
根据3GPP协议中的记载,在载波进行自调度的情况下,PDSCH的调度时刻与PDCCH之间应满足预设的时间要求。对于PDSCH映射类型为TypeA的PDSCH,如果调度该PDSCH的PDCCH没有完全包含在时隙的前三个符号内,则该PDSCH不能调度在该时隙上。此时,第一个满足PDSCH与PDCCH之间时间要求的时隙为该时隙的下一个时隙。对于PDSCH映射类型为TypeB的PDSCH,PDSCH的第一个符号不能早于调度该PDSCH的PDCCH的第一个符号。此时,第一个满足PDSCH与PDCCH之间时间要求的时隙即为接收PDCCH所在的时隙。
在现有的3GPP协议中,已经描述了如何通过K
0、PDSCH映射类型和SLIV确定PDSCH所在的时隙和符号,其中,K
0用于确定PDSCH所在的时隙。假设PDCCH的PDSCH的子载波间隔分别配置为μ
PDCCH和μ
PDSCH,PDCCH在时隙n上接收,则PDSCH所在的时隙编号为
此时,K
0=0指示的是时隙
图3是本申请实施例提供的一种PDCCH与PDSCH之间满足预设时间的调度示意图。以图3为例,描述PDCCH与其调度的PDSCH之间需要满足的时间要求。假设载波A跨载波调度载波B,载波A的子载波间隔为15KHz,载波B的子载波间隔为30KHz。假设载波A和载波B上调度的都是PDSCH映射类型 为TypeA的PDSCH。载波A上的PDCCH在时隙的前两个符号上。根据现有协议,在载波A调度载波A上的PDSCH的情况下,PDSCH可以与对应的PDCCH在同一时隙上,即K
0值最小可以配置为0。
在载波A跨载波调度载波B上的PDSCH的情况下,根据现有的3GPP协议,第二通信节点首先需要预留4个PDCCH符号长的PDCCH处理时延,其次第二通信节点只能在满足PDCCH处理时延后的下一个时隙开始调度PDSCH。在载波B上,图3中PDSCH最早只能从载波B上的时隙1开始调度,即K
0值最小只能配置为1。
在一个DCI调度多个载波上的PDSCH的情况下,由于每个载波的子载波间隔不一样,每个载波上调度的PDSCH与PDCCH之间的时间要求不一样。而在现有5G系统及标准中,一个DCI中只能通过TDRA域指示一个K
0,从而导致K
0的取值比较受限。以图3为例,如果载波A上的DCI调度载波A和载波B上的PDSCH,为了同时满足载波A上的PDSCH与承载该DCI的PDCCH之间的时间要求和载波B上的PDSCH与承载该DCI的PDCCH之间的时间要求,K
0最小只能配置为1,从而导致载波A上的PDSCH最早只能在时隙1上调度,增加了载波A上的调度时延。
在实施例中,对K
0的取值进行重新解释,K
0配置为0(K
0=0)指示每个载波上PDSCH的调度时刻与对应PDCCH之间满足预设时间的第一个时隙。即使在每个DCI只指示一个K
0的情况下,根据各个载波上不同的PDSCH与PDCCH之间的时延,不同载波对K
0有不同的解释,从而提高调度的灵活性并降低调度时延。
以图3为例,假设载波A跨载波调度载波B,载波A的子载波间隔为15KHz,载波B的子载波间隔为30KHz。假设载波A和载波B上调度的都是PDSCH映 射类型为TypeA的PDSCH,载波A上的PDCCH在时隙的前两个符号上。根据现有协议,在载波A调度载波A上的PDSCH的情况下,PDSCH可以与对应的PDCCH在同一时隙上,即K
0值最小可以配置为0。此时,载波A上第一个满足PDSCH与PDCCH之间时间要求的时隙为时隙0。
在载波A跨载波调度载波B上的PDSCH的情况下,根据现有协议,第二通信节点首先需要预留4个PDCCH符号长的PDCCH处理时延,其次第二通信节点只能在满足PDCCH处理时延后的下一个时隙开始调度PDSCH。在载波B上,图3中PDSCH最早只能从载波B上的时隙1开始调度,即K
0值最小只能配置为1。此时,载波B上第一个满足PDSCH与PDCCH之间时间要求的时隙为时隙1。
如果K
0配置为0(K
0=0)指示各个载波上第一个满足PDSCH与PDCCH之间时间要求的时隙,则对于载波A来说,K
0=0指示时隙0,K
0=1指示时隙1;对于载波B来说,K
0=0指示时隙1,K
0=1指示时隙2,依次类推。此时,在第二通信节点在载波A的时隙0和载波B的时隙1上调度PDSCH,第二通信节点只在DCI中指示一个K
0值即可,即将K
0配置为0。
在一实现方式中,基站为用户终端配置两个载波,即载波1和载波2。载波1是一个长期演进(Long Term Evolution,LTE)载波或者一个新空口(New Radio,NR)载波,载波2是一个NR载波。为了充分利用NR系统多输入多输出(Multiple Input Multiple Output,MIMO)技术的优势,用户终端需要支持在载波2使用两个天线端口发送上行信号。在载波2上使用两个天线端口发送上行信号的情况下,用户终端配置两套射频链路,再加上载波1的一套射频链路,如果用户终端同时在载波1和载波2上发送上行信号,终端一共配置三套射频链路。配置三套射频链路导致用户终端的成本较高。有鉴于此,本申请实施例通过对用户 终端发送上行信号进行限定,用户终端可以只配置两套射频链路,并且也能充分利用NR系统MIMO技术的优势。
在一实施例中,基站为用户终端配置两个载波,即载波1和载波2。用户终端有两种发送模式,分别为发送模式一和发送模式二。
所述发送模式一,包括:终端允许在载波1上发送上行信号。
所述发送模式二,包括:终端不允许在载波2上发送上行信号。
在一实施例中,基站为用户终端配置两个载波,即载波1和载波2。用户终端有两种发送模式,分别为发送模式一和发送模式二。
所述发送模式一,包括:用户终端在载波1上使用一个天线端口发送上行信号,用户终端在载波2上不发送上行信号;用户终端在载波1上使用一个天线端口发送上行信号,用户终端在载波2上使用一个天线端口发送上行信号;用户终端在载波1上不发送上行信号,用户终端在载波2上使用一个天线端口发送上行信号。
所述发送模式二,包括:用户终端不在载波1上发送上行信号,用户终端在载波2上使用两个天线端口发送上行信号;用户终端不在载波1上发送上行信号,用户终端在载波2上使用一个天线端口发送上行信号。
在一个实施例中,上行信号包括物理上行共享信道(Physical Uplink Shared Channel,PUSCH),物理上行控制信道(Physical Uplink Control Channel,PUCCH),信道探测参考信号(Sounding Reference Signal,SRS)和随机接入信道(Physical Random Access Channel,PRACH)。
在一个实施例中,载波1为一个LTE载波,载波2为一个NR载波。
在一个实施例中,载波1为一个NR载波,载波2为另一个NR载波。
在一个实施例中,在载波1为一个NR载波,载波2为另一个NR载波的情 况下,基站将载波1和载波2配置在同一个PUCCH组(记为PUCCH Group)中,有助于重用现有NR系统中的上行信号复用和丢弃规则,降低了实现的复杂度。
在一实施例中,在用户终端处于发送模式一的情况下,用户终端把一套射频链路配置给载波1,把另一套射频链路配置给载波2。在用户终端处于发送模式二的情况下,用户终端把两套射频链路都配置给载波2。
在一实施例中,基站为用户终端配置两个载波,即载波1和载波2。
用户终端根据切换触发因素判断是否需要切换发送模式,所述切换触发因素至少包括下述一项:DCI格式、上行信号对应的SRS索引、上行信号对应的SRS端口数、发送PUSCH的端口数、PRACH的发送、帧结构。
在一实施例中,基站为用户终端配置两个载波,即载波1和载波2。
在用户终端当前处于发送模式一,以及用户终端收到基站通知告知终端在下一个上行时段在载波2上使用两个天线端口发送上行信号的情况下,用户终端切换到发送模式二并在载波2上使用两个天线端口发送所述上行信号。
在用户终端当前处于发送模式二,以及终端收到基站通知告知终端在下一个上行时段在载波1上发送上行信号的情况下,用户终端切换到发送模式一并在载波1上发送所述上行信号。
在一实施例中,在不满足上述发送模式切换条件的情况下,用户终端保持在当前发送模式。
在一个实施例中,基站为用户终端配置两个载波,即载波1和载波2。
在用户终端收到基站通知,告知用户终端在下一个上行时段进入发送模式二的情况下,用户终端不期望基站在下一个上行时段在载波1上调度上行信号。
在用户终端收到基站通知,告知用户终端在下一个上行时段进入发送模式 一的情况下,用户终端不期望基站在下一个上行时段在载波2上调度用两个天线端口发送的上行信号。
在一个实施例中,基站为用户终端配置两个载波,即载波1和载波2。
在用户终端收到基站通知,告知用户终端在下一个上行时段在载波2上使用两个天线端口发送上行信号的情况下,用户终端不期望基站在下一个上行时段在载波1上调度上行信号。
在用户终端收到基站通知,告知用户终端在下一个上行时段在载波1上发送上行信号的情况下,用户终端不期望基站在下一个上行时段在载波2上调度用两个天线端口发送的上行信号。
在一实施例中,假设基站为用户终端配置两个载波,即载波1和载波2。在用户终端当前处于发送模式一,以及用户终端收到基站通知告知用户终端在下一个上行时段在载波1上使用一个天线端口发送上行信号的情况下,用户终端保持在发送模式一并在载波1上发送对应的上行信号。
在一实施例中,假设基站为用户终端配置两个载波,即载波1和载波2。在用户终端当前处于发送模式一,以及用户终端收到基站通知告知用户终端在下一个上行时段在载波2上使用一个天线端口发送上行信号的情况下,用户终端保持在发送模式一并在载波2上发送对应的上行信号。
在一实施例中,假设基站为用户终端配置两个载波,即载波1和载波2。在用户终端当前处于发送模式一,以及用户终端收到基站通知告知用户终端在下一个上行时段在载波1和载波2上使用一个天线端口发送上行信号的情况下,用户终端保持在发送模式一并在载波1和载波2上发送对应的上行信号。
在一实施例中,假设基站为用户终端配置两个载波,即载波1和载波2。在用户终端当前处于发送模式一,以及用户终端收到基站通知告知终端在下一个 上行时段在载波2上使用两个天线端口发送上行信号的情况下,用户终端切换到发送模式二并在载波2上发送对应的上行信号。
在一实施例中,假设基站为用户终端配置两个载波,即载波1和载波2。在用户终端当前处于发送模式二,以及用户终端收到基站通知告知用户终端在下一个上行时段在载波2上使用两个天线端口发送上行信号的情况下,用户终端保持在发送模式二并在载波2上发送对应的上行信号。
在一实施例中,假设基站为用户终端配置两个载波,即载波1和载波2。在用户终端当前处于发送模式二,以及用户终端收到基站通知告知用户终端在下一个上行时段在载波2上使用一个天线端口发送上行信号的情况下,用户终端保持在发送模式二并在载波2上发送对应的上行信号。
在一实施例中,假设基站为用户终端配置两个载波,即载波1和载波2。在用户终端当前处于发送模式二,以及用户终端收到基站通知告知用户终端在下一个上行时段在载波1上使用一个天线端口发送上行信号的情况下,用户终端切换到发送模式一并在载波1上发送对应的上行信号。
在一个实施例中,下一个上行时段表示下一个时隙,下一个子帧或者下一段连续的上行符号。在系统为一个15KHz的载波配置时分双工(Time Division Duplex,TDD)帧结构为“DDDSUDDSUU”并且“S”时隙的配置为“10:2:2”的情况下,“D”表示下行时隙,“U”表示上行时隙,“S”表示特殊时隙,“10:2:2”表示特殊时隙的前10个符号为下行符号,特殊时隙的最后2个符号为上行符号,特殊时隙剩余的中间2个符号为灵活符号(用作上下行之间切换的保护间隔)。在帧结构“DDDSUDDSUU”中,第一段连续的上行符号为第一个“S”时隙以及后续的一个“U”时隙包含的16个上行符号。第二段连续的上行符号为第二个“S”时隙以及后续的两个“U”时隙包含的30个上行符号。
在一个实施例中,在DCI指示PUSCH对应的预编码矩阵指示(Transmission Precoding Matrix Indicator,TPMI)为0的情况下,该DCI调度的PUSCH只使用一个天线端口进行发送。
在用户终端当前处于发送模式一,以及用户终端收到基站发送的DCI,DCI指示用户终端在下一个上行时段在载波2上发送TPMI为0的PUSCH的情况下,用户终端不需要切换到发送模式二(即用户终端保持在发送模式一)并在载波2上发送PUSCH。
在用户终端当前处于发送模式一,以及用户终端收到基站发送的DCI,DCI指示用户终端在下一个上行时段在载波2上发送TPMI不为0的PUSCH的情况下,用户终端切换到发送模式二并在载波2上发送PUSCH。
在用户终端当前处于发送模式二,以及用户终端收到基站发送的DCI,DCI指示用户终端在下一个上行时段在载波2上发送TPMI为0的PUSCH的情况下,用户终端保持在发送模式二。
在一个实施例中,在DCI指示PUSCH对应的TPMI为1的情况下,该DCI调度的PUSCH只使用一个天线端口进行发送。
在用户终端当前处于发送模式一,以及用户终端收到基站发送的DCI,DCI指示终端在下一个上行时段在载波2上发送TPMI为1的PUSCH的情况下,用户终端不需要切换到发送模式二(即终端保持在发送模式一),并在载波2上发送PUSCH。
在用户终端当前处于发送模式一,以及用户终端收到基站发送的DCI,DCI指示用户终端在下一个上行时段在载波2上发送TPMI不为1的PUSCH的情况下,用户终端切换到发送模式二,并在载波2上发送PUSCH。
在用户终端当前处于发送模式二,以及用户终端收到基站发送的DCI,DCI 指示用户终端在下一个上行时段在载波2上发送TPMI为1的PUSCH的情况下,用户终端保持在发送模式二。
在一实施例中,在用户终端当前处于发送模式一,以及用户终端收到基站发送的DCI格式A,DCI格式A指示终端在下一个上行时段在载波2上发送上行信号的情况下,用户终端不需要切换到发送模式二(即用户终端保持在发送模式一),并在载波2上发送所述上行信号。
在用户终端当期处于发送模式一,以及用户终端收到基站发送的DCI格式B,DCI格式B指示终端在下一个上行时段在载波2上发送上行信号的情况下,用户终端切换到发送模式二,并在载波2上发送所述上行信号。
在用户终端当前处于发送模式二,以及用户终端收到基站发送的DCI格式A,DCI格式A指示终端在下一个上行时段在载波2上发送上行信号的情况下,用户终端保持在发送模式二,并在载波2上发送所述上行信号。
在一实施例中,DCI格式A为DCI格式0_0,DCI格式B为除了DCI格式0_0以外的其他可以调度上行信号、触发上行信号或者激活上行信号的DCI格式。
在一实施例中,在载波1为一个LTE载波,载波2为一个NR载波的情况下,基站为用户终端配置一个参考帧结构。参考帧结构包含上行U时隙和其他时隙,其他时隙包含下行D时隙和特殊S时隙。
在用户终端处于上行U时隙的情况下,用户终端处于发送模式一;在用户终端处于其他时隙的情况下,用户终端处于发送模式二。
在一个实施例中,在用户终端从上行U时隙进入到其他时隙的情况下,用户终端从发送模式一切换到发送模式二。在用户终端从其他时隙进入到上行U时隙的情况下,用户终端由发送模式二切换到发送模式一。
在一个实施例中,系统配置的参考帧结构中包含连续的P(P为正整数)个上行U时隙。在连续的P个上行U时隙开始前的一段时间内和连续的P个上行U时隙结束后的一段时间内,用户终端不发送任何上行信号。
图4是本申请实施例提供的一种信息调度装置的结构框图。如图4所示,本实施例中的信息调度装置包括:第一接收模块310、第二接收模块320和第一确定模块330。
第一接收模块310,设置为接收第二通信节点发送的物理下行共享信道PDSCH配置信息;
第二接收模块320,设置为接收第二通信节点下发的下行控制信息DCI;
第一确定模块330,设置为根据PDSCH配置信息和DCI确定至少一个载波上PDSCH的调度信息。
本实施例提供的信息调度装置设置为实现图1所示实施例的应用于第一通信节点的信息调度方法,本实施例提供的信息调度装置实现原理和技术效果类似,此处不再赘述。
在一实施例中,调度信息至少包括下述一项:当前调度的载波数量、时域资源指示信息、当前调度PDSCH的载波、当前调度PDSCH的载波指示域CIF索引。
在一实施例中,PDSCH配置信息,包括:DCI可调度的总载波数量M;用于指示DCI当前调度一个或N个载波上PDCSH的无线网络临时标识RNTI,N为大于1的正整数并且N小于等于M。
在一实施例中,PDSCH配置信息,包括:载波指示域CIF索引与载波之间的映射关系,每个CIF索引映射至至少一个载波。
在一实施例中,DCI中的CIF域指示CIF索引,CIF索引映射的载波为DCI 当前调度PDCSH的载波;在CIF域指示的CIF索引映射至N个载波的情况下,DCI用于在N个载波上调度PDCSH,且在每个载波上调度一个PDSCH,N为大于1的正整数;在CIF域指示的CIF索引映射至一个载波的情况下,DCI用于在一个载波上调度PDCSH。
在一实施例中,PDSCH配置信息,包括:时域资源分配TDRA索引与至少一组时域资源指示信息之间的映射关系,每组时域资源指示信息包括:时隙偏移K
0、起点长度指示值SLIV和PDSCH映射类型。
在一实施例中,每组时域资源指示信息包含相同的K
0。
在一实施例中,每组时域资源指示信息包含相同的SLIV。
在一实施例中,PDSCH配置信息,还包括:每组时域资源指示信息与载波之间的映射关系。
在一实施例中,DCI中的TDRA域指示TDRA索引;在TDRA索引映射至N组时域资源指示信息的情况下,DCI用于在N组时域资源指示信息对应的载波上调度PDSCH,且在每个载波上调度一个PDSCH,N为大于1的正整数;在TDRA索引映射至一组时域资源指示信息的情况下,DCI用于在一组时域资源指示信息对应的载波上调度PDSCH。
在一实施例中,DCI中的CIF域与TDRA域联合指示TDRA索引。
在一实施例中,DCI中的CIF域指示CIF索引,CIF索引映射至至少一个载波;DCI中的TDRA域指示TDRA索引;
在DCI中CIF域指示的CIF索引映射至N个载波,以及DCI中TDRA域指示的TDRA索引映射至N组时域资源指示信息的情况下,DCI用于在N个载波上调度PDSCH,且在每个载波上调度一个PDSCH,N为大于1的正整数;
在DCI中CIF域指示的CIF索引映射至一个载波,以及DCI中TDRA域指 示的TDRA索引映射至一组时域资源指示信息的情况下,DCI用于在一个载波上调度PDSCH。
在一实施例中,DCI中TDRA域指示的TDRA索引映射的时域资源指示信息的组数与DCI中CIF域指示的CIF索引映射的载波数相等。
在一实施例中,采用DCI中CIF域指示CIF索引,CIF索引映射至一个CIF索引为i的载波;在DCI中TDRA域指示的TDRA索引映射至N组时域资源指示信息的情况下,DCI在CIF索引分别为i mod M、(i+1)mod M……(i+N-1)mod M的N个载波上调度PDSCH,且每个载波上调度一个PDSCH;M为DCI可调度的总载波数量,N为大于1的正整数,mod为取余操作。
在一实施例中,DCI指示两个CIF域,且每个CIF域指示一个CIF索引,以及每个CIF索引映射至一个载波上。
在一实施例中,PDSCH配置信息,包括:CIF索引与两组载波之间的映射关系,第一组载波包含一个载波,第二组载波包含至少一个载波。
在一实施例中,在CIF索引对应第一组载波的情况下,DCI用于在第一组载波中由CIF索引映射的一个载波上调度PDSCH;
在CIF索引对应第二组载波的情况下,DCI用于在第二组载波中由CIF索引映射的至少一个载波上调度PDSCH,且每个载波上调度一个PDSCH。
在一实施例中,PDSCH配置信息包括:时域资源指示信息;
在时域资源指示信息中K
0等于0的情况下,K
0用于指示每个载波上PDSCH的调度时刻与对应物理下行控制信道PDCCH之间满足预设时间的第一个时隙。
图5是本申请实施例提供的另一种信息调度装置的结构框图。如图5所示,本实施例中的信息调度装置包括:第一发送模块410、第二确定模块420和第二发送模块430。
第一发送模块410,设置为将预先确定的物理下行共享信道PDSCH配置信息发送至第一通信节点;
第二确定模块420,设置为根据PDSCH配置信息确定用于调度至少一个载波上PDSCH的下行控制信息DCI;
第二发送模块430,设置为将下行控制信息发送至第一通信节点。
本实施例提供的信息调度装置设置为实现图2所示实施例的应用于第二通信节点的信息调度方法,本实施例提供的信息调度装置实现原理和技术效果类似,此处不再赘述。
在一实施例中,PDSCH配置信息,包括:DCI可调度的总载波数量M;用于指示DCI当前调度一个或N个载波上PDCSH的无线网络临时标识RNTI,N为大于1的正整数并且N小于等于M。
在一实施例中,PDSCH配置信息,包括:载波指示域CIF索引与载波之间的映射关系,每个CIF索引映射至至少一个载波。
在一实施例中,DCI中的CIF域指示CIF索引,CIF索引映射的载波为DCI当前调度PDCSH的载波;在CIF域指示的CIF索引映射至N个载波的情况下,DCI用于在N个载波上调度PDCSH,且在每个载波上调度一个PDSCH,N为大于1的正整数;在CIF域指示的CIF索引映射至一个载波的情况下,DCI用于在一个载波上调度PDCSH。
在一实施例中,PDSCH配置信息,包括:时域资源分配TDRA索引与至少一组时域资源指示信息之间的映射关系,每组时域资源指示信息包括:时隙偏移K
0、起点长度指示值SLIV和PDSCH映射类型。
在一实施例中,每组时域资源指示信息包含相同的K
0。
在一实施例中,每组时域资源指示信息包含相同的SLIV。
在一实施例中,PDSCH配置信息,还包括:每组时域资源指示信息与载波之间的映射关系。
在一实施例中,DCI中的TDRA域指示TDRA索引;在TDRA索引映射至N组时域资源指示信息的情况下,DCI用于在N组时域资源指示信息对应的载波上调度PDSCH,且在每个载波上调度一个PDSCH,N为大于1的正整数;在TDRA索引映射至一组时域资源指示信息的情况下,DCI用于在一组时域资源指示信息对应的载波上调度PDSCH。
在一实施例中,DCI中的CIF域与TDRA域联合指示TDRA索引。
在一实施例中,DCI中的CIF域指示CIF索引,CIF索引映射至至少一个载波;DCI中的TDRA域指示TDRA索引;在DCI中CIF域指示的CIF索引映射至N个载波,以及DCI中TDRA域指示的TDRA索引映射至N组时域资源指示信息的情况下,DCI用于在N个载波上调度PDSCH,且在每个载波上调度一个PDSCH,N为大于1的正整数;在DCI中CIF域指示的CIF索引映射至一个载波,以及DCI中TDRA域指示的TDRA索引映射至一组时域资源指示信息的情况下,DCI用于在一个载波上调度PDSCH。
在一实施例中,DCI中TDRA域指示的TDRA索引映射的时域资源指示信息的组数与DCI中CIF域指示的CIF索引映射的载波数相等。
在一实施例中,采用DCI中CIF域指示CIF索引,CIF索引映射至一个CIF索引为i的载波;
在DCI中TDRA域指示的TDRA索引映射至N组时域资源指示信息的情况下,DCI在CIF索引分别为i mod M、(i+1)mod M……(i+N-1)mod M的N个载波上调度PDSCH,且每个载波上调度一个PDSCH;M为DCI可调度的总载波数量,N为大于1的正整数,mod为取余操作。
在一实施例中,DCI指示两个CIF域,且每个CIF域指示一个CIF索引,以及每个CIF索引映射至一个载波上。
在一实施例中,PDSCH配置信息,包括:CIF索引与两组载波之间的映射关系,第一组载波包含一个载波,第二组载波包含至少一个载波。
在一实施例中,在CIF索引对应第一组载波的情况下,DCI用于在第一组载波中由CIF索引映射的一个载波上调度PDSCH;
在CIF索引对应第二组载波的情况下,DCI用于在第二组载波中由CIF索引映射的至少一个载波上调度PDSCH,且每个载波上调度一个PDSCH。
在一实施例中,PDSCH配置信息包括:时域资源指示信息;在时域资源指示信息中K
0等于0的情况下,K
0用于指示每个载波上PDSCH的调度时刻与对应物理下行控制信道PDCCH之间满足预设时间的第一个时隙。
图6是本申请实施例提供的一种设备的结构示意图。如图6所示,本申请提供的设备,包括:处理器510和存储器520。该设备中处理器510的数量可以是一个或者多个,图6中以一个处理器510为例。该设备中存储器520的数量可以是一个或者多个,图6中以一个存储器520为例。该设备的处理器510和存储器520可以通过总线或者其他方式连接,图6中以通过总线连接为例。在该实施例中,该设备为第一通信节点。
存储器520作为一种计算机可读存储介质,可设置为存储软件程序、计算机可执行程序以及模块,如本申请任意实施例的设备对应的程序指令/模块(例如,信息调度装置中的第一接收模块、第二接收模块和第一确定模块)。存储器520可包括存储程序区和存储数据区,其中,存储程序区可存储操作系统、至少一个功能所需的应用程序;存储数据区可存储根据设备的使用所创建的数据等。此外,存储器520可以包括高速随机存取存储器,还可以包括非易失性存储器, 例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。在一些实例中,存储器520可进一步包括相对于处理器510远程设置的存储器,这些远程存储器可以通过网络连接至设备。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
上述提供的设备可设置为执行上述任意实施例提供的应用于第一通信节点的信息调度方法,具备相应的功能和效果。
在设备为第二通信节点的情况下,上述提供的设备可设置为执行上述任意实施例提供的应用于第二通信节点的信息调度方法,具备相应的功能和效果。
本申请实施例还提供一种包含计算机可执行指令的存储介质,计算机可执行指令在由计算机处理器执行时用于执行应用于第一通信节点的一种信息调度方法,该方法包括:接收第二通信节点发送的物理下行共享信道PDSCH配置信息;接收第二通信节点下发的下行控制信息DCI;根据PDSCH配置信息和DCI确定至少一个载波上PDSCH的调度信息。
本申请实施例还提供一种包含计算机可执行指令的存储介质,计算机可执行指令在由计算机处理器执行时用于执行应用于第二通信节点的一种信息调度方法,该方法包括:将预先确定的物理下行共享信道PDSCH配置信息发送至第一通信节点;根据PDSCH配置信息确定用于调度至少一个载波上PDSCH的下行控制信息DCI;将下行控制信息发送至第一通信节点。
本领域内的技术人员应明白,术语用户设备涵盖任何适合类型的无线用户设备,例如移动电话、便携数据处理装置、便携网络浏览器或车载移动台。
一般来说,本申请的多种实施例可以在硬件或专用电路、软件、逻辑或其任何组合中实现。例如,一些方面可以被实现在硬件中,而其它方面可以被实现在可以被控制器、微处理器或其它计算装置执行的固件或软件中,尽管本申 请不限于此。
本申请的实施例可以通过移动装置的数据处理器执行计算机程序指令来实现,例如在处理器实体中,或者通过硬件,或者通过软件和硬件的组合。计算机程序指令可以是汇编指令、指令集架构(Instruction Set Architecture,ISA)指令、机器指令、机器相关指令、微代码、固件指令、状态设置数据、或者以一种或多种编程语言的任意组合编写的源代码或目标代码。
本申请附图中的任何逻辑流程的框图可以表示程序步骤,或者可以表示相互连接的逻辑电路、模块和功能,或者可以表示程序步骤与逻辑电路、模块和功能的组合。计算机程序可以存储在存储器上。存储器可以具有任何适合于本地技术环境的类型并且可以使用任何适合的数据存储技术实现,例如但不限于只读存储器(Read-Only Memory,ROM)、随机访问存储器(Random Access Memory,RAM)、光存储器装置和系统(数码多功能光碟(Digital Video Disc,DVD)或光盘(Compact Disk,CD))等。计算机可读介质可以包括非瞬时性存储介质。数据处理器可以是任何适合于本地技术环境的类型,例如但不限于通用计算机、专用计算机、微处理器、数字信号处理器(Digital Signal Processing,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、可编程逻辑器件(Field-Programmable Gate Array,FGPA)以及基于多核处理器架构的处理器。
Claims (39)
- 一种信息调度方法,应用于第一通信节点,包括:接收第二通信节点发送的物理下行共享信道PDSCH配置信息;接收第二通信节点下发的下行控制信息DCI;根据所述PDSCH配置信息和所述DCI确定至少一个载波上PDSCH的调度信息。
- 根据权利要求1所述的方法,其中,所述调度信息至少包括下述一项:当前调度的载波数量、时域资源指示信息、当前调度PDSCH的载波、当前调度PDSCH的载波指示域CIF索引。
- 根据权利要求1所述的方法,其中,所述PDSCH配置信息,包括:DCI可调度的总载波数量M;用于指示DCI当前调度一个或N个载波上PDCSH的无线网络临时标识RNTI,N为大于1的正整数并且N小于或等于M。
- 根据权利要求1所述的方法,其中,所述PDSCH配置信息,包括:载波指示域CIF索引与载波之间的映射关系,每个所述CIF索引映射至至少一个载波。
- 根据权利要求4所述的方法,其中,所述DCI中的CIF域指示所述CIF索引,所述CIF索引映射的载波为DCI当前调度PDCSH的载波;在所述CIF域指示的CIF索引映射至N个载波的情况下,DCI用于在所述N个载波上调度PDCSH,且在每个载波上调度一个PDSCH,N为大于1的正整数;在所述CIF域指示的CIF索引映射至一个载波的情况下,DCI用于在所述一个载波上调度PDCSH。
- 根据权利要求1所述的方法,其中,所述PDSCH配置信息,包括:时域资源分配TDRA索引与至少一组时域资源指示信息之间的映射关系,每组所述时域资源指示信息包括:时隙偏移K 0、起点长度指示值SLIV和PDSCH映射类型。
- 根据权利要求6所述的方法,其中,每组所述时域资源指示信息包含相 同的K 0。
- 根据权利要求6所述的方法,其中,每组所述时域资源指示信息包含相同的SLIV。
- 根据权利要求6、7或8所述的方法,其中,所述PDSCH配置信息,还包括:每组所述时域资源指示信息与载波之间的映射关系。
- 根据权利要求9所述的方法,其中,所述DCI中的TDRA域指示所述TDRA索引;在所述TDRA索引映射至N组时域资源指示信息的情况下,DCI用于在所述N组时域资源指示信息对应的载波上调度PDSCH,且在每个载波上调度一个PDSCH,N为大于1的正整数;在所述TDRA索引映射至一组时域资源指示信息的情况下,DCI用于在所述一组时域资源指示信息对应的载波上调度PDSCH。
- 根据权利要求9所述的方法,其中,所述DCI中的CIF域与TDRA域联合指示TDRA索引。
- 根据权利要求6、7或8所述的方法,其中,所述DCI中的CIF域指示CIF索引,所述CIF索引映射到至少一个载波;所述DCI中的TDRA域指示TDRA索引;在所述DCI中CIF域指示的CIF索引映射至N个载波,以及所述DCI中TDRA域指示的TDRA索引映射至N组时域资源指示信息的情况下,DCI用于在所述N个载波上调度PDSCH,且在每个载波上调度一个PDSCH,N为大于1的正整数;在所述DCI中CIF域指示的CIF索引映射至一个载波,以及所述DCI中TDRA域指示的TDRA索引映射至一组时域资源指示信息的情况下,DCI用于在所述一个载波上调度PDSCH。
- 根据权利要求12所述的方法,其中,所述DCI中TDRA域指示的TDRA索引映射的时域资源指示信息的组数与所述DCI中CIF域指示的CIF索引映射 的载波数相等。
- 根据权利要求6、7或8所述的方法,其中,采用DCI中CIF域指示CIF索引,所述CIF索引映射至一个CIF索引为i的载波;在DCI中TDRA域指示的TDRA索引映射至N组时域资源指示信息的情况下,所述DCI在CIF索引分别为i mod M、(i+1)mod M……(i+N-1)mod M的N个载波上调度PDSCH,且每个载波上调度一个PDSCH;M为DCI可调度的总载波数量,N为大于1的正整数,mod为取余操作。
- 根据权利要求1所述的方法,其中,所述DCI指示两个CIF域,且每个所述CIF域指示一个CIF索引,以及每个CIF索引映射至一个载波。
- 根据权利要求1所述的方法,其中,所述PDSCH配置信息,包括:CIF索引与两组载波之间的映射关系,第一组载波包含一个载波,第二组载波包含至少一个载波。
- 根据权利要求16所述的方法,其中,在所述CIF索引对应第一组载波的情况下,所述DCI用于在所述第一组载波中由所述CIF索引映射的一个载波上调度PDSCH;在所述CIF索引对应第二组载波的情况下,所述DCI用于在所述第二组载波中由所述CIF索引映射的至少一个载波上调度PDSCH,且每个载波上调度一个PDSCH。
- 根据权利要求1所述的方法,其中,所述PDSCH配置信息包括:时域资源指示信息;在所述时域资源指示信息中K 0等于0的情况下,K 0用于指示每个载波上PDSCH的调度时刻与对应物理下行控制信道PDCCH之间满足预设时间的第一个时隙。
- 一种信息调度方法,应用于第二通信节点,包括:将预先确定的物理下行共享信道PDSCH配置信息发送至第一通信节点;根据所述PDSCH配置信息确定用于调度至少一个载波上PDSCH的下行控 制信息DCI;将所述DCI发送至第一通信节点。
- 根据权利要求19所述的方法,其中,所述PDSCH配置信息,包括:DCI可调度的总载波数量M;用于指示DCI当前调度一个或N个载波上PDCSH的无线网络临时标识RNTI,N为大于1的正整数并且N小于或等于M。
- 根据权利要求19所述的方法,其中,所述PDSCH配置信息,包括:载波指示域CIF索引与载波之间的映射关系,每个所述CIF索引映射至至少一个载波。
- 根据权利要求21所述的方法,其中,所述DCI中的CIF域指示所述CIF索引,所述CIF索引映射的载波为DCI当前调度PDCSH的载波;在所述CIF域指示的CIF索引映射至N个载波的情况下,DCI用于在所述N个载波上调度PDCSH,且在每个载波上调度一个PDSCH,N为大于1的正整数;在所述CIF域指示的CIF索引映射至一个载波的情况下,DCI用于在所述一个载波上调度PDCSH。
- 根据权利要求19所述的方法,其中,所述PDSCH配置信息,包括:时域资源分配TDRA索引与至少一组时域资源指示信息之间的映射关系,每组所述时域资源指示信息包括:时隙偏移K 0、起点长度指示值SLIV和PDSCH映射类型。
- 根据权利要求23所述的方法,其中,每组所述时域资源指示信息包含相同的K 0。
- 根据权利要求23所述的方法,其中,每组所述时域资源指示信息包含相同的SLIV。
- 根据权利要求23、24或25所述的方法,其中,所述PDSCH配置信息,还包括:每组所述时域资源指示信息与载波之间的映射关系。
- 根据权利要求26所述的方法,其中,所述DCI中的TDRA域指示所述 TDRA索引;在所述TDRA索引映射至N组时域资源指示信息的情况下,DCI用于在所述N组时域资源指示信息对应的载波上调度PDSCH,且在每个载波上调度一个PDSCH,N为大于1的正整数;在所述TDRA索引映射至一组时域资源指示信息的情况下,DCI用于在所述一组时域资源指示信息对应的载波上调度PDSCH。
- 根据权利要求26所述的方法,其中,所述DCI中的CIF域与TDRA域联合指示TDRA索引。
- 根据权利要求23、24或25所述的方法,其中,所述DCI中的CIF域指示CIF索引,所述CIF索引映射至至少一个载波;所述DCI中的TDRA域指示TDRA索引;在所述DCI中CIF域指示的CIF索引映射至N个载波,以及所述DCI中TDRA域指示的TDRA索引映射至N组时域资源指示信息的情况下,DCI用于在所述N个载波上调度PDSCH,且在每个载波上调度一个PDSCH,N为大于1的正整数;在所述DCI中CIF域指示的CIF索引映射至一个载波,以及所述DCI中TDRA域指示的TDRA索引映射至一组时域资源指示信息的情况下,DCI用于在所述一个载波上调度PDSCH。
- 根据权利要求29所述的方法,其中,所述DCI中TDRA域指示的TDRA索引映射的时域资源指示信息的组数与所述DCI中CIF域指示的CIF索引映射的载波数相等。
- 根据权利要求23、24或25所述的方法,其中,采用DCI中CIF域指示CIF索引,所述CIF索引映射至一个CIF索引为i的载波;在DCI中TDRA域指示的TDRA索引映射至N组时域资源指示信息的情况下,所述DCI在CIF索引分别为i mod M、(i+1)mod M……(i+N-1)mod M的N个载波上调度PDSCH,且每个载波上调度一个PDSCH;M为DCI可调度的总载波 数量,N为大于1的正整数,mod为取余操作。
- 根据权利要求19所述的方法,其中,所述DCI指示两个CIF域,且每个所述CIF域指示一个CIF索引,以及每个CIF索引映射至一个载波。
- 根据权利要求19所述的方法,其中,所述PDSCH配置信息,包括:CIF索引与两组载波之间的映射关系,第一组载波包含一个载波,第二组载波包含至少一个载波。
- 根据权利要求33所述的方法,其中,在所述CIF索引对应第一组载波的情况下,所述DCI用于在所述第一组载波中由所述CIF索引映射的一个载波上调度PDSCH;在所述CIF索引对应第二组载波的情况下,所述DCI用于在所述第二组载波中由所述CIF索引映射的至少一个载波上调度PDSCH,且每个载波上调度一个PDSCH。
- 根据权利要求19所述的方法,其中,所述PDSCH配置信息包括:时域资源指示信息;在所述时域资源指示信息中K 0等于0的情况下,K 0用于指示每个载波上PDSCH的调度时刻与对应物理下行控制信道PDCCH之间满足预设时间的第一个时隙。
- 一种信息调度装置,应用于第一通信节点,包括:第一接收模块,设置为接收第二通信节点发送的物理下行共享信道PDSCH配置信息;第二接收模块,设置为接收第二通信节点下发的下行控制信息DCI;第一确定模块,设置为根据所述PDSCH配置信息和所述DCI确定至少一个载波上PDSCH的调度信息。
- 一种信息调度装置,应用于第二通信节点,包括:第一发送模块,设置为将预先确定的物理下行共享信道PDSCH配置信息发送至第一通信节点;第二确定模块,设置为根据所述PDSCH配置信息确定用于调度至少一个载波上PDSCH的下行控制信息DCI;第二发送模块,设置为将所述DCI发送至第一通信节点。
- 一种设备,包括:存储器,以及至少一个处理器;所述存储器,设置为存储至少一个程序;当所述至少一个程序被所述至少一个处理器执行,使得所述至少一个处理器实现如权利要求1-35中任一所述的方法。
- 一种存储介质,所述存储介质存储有计算机程序,所述计算机程序被处理器执行时实现权利要求1-35任一项所述的方法。
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CN111901885A (zh) | 2020-11-06 |
EP4096334A4 (en) | 2024-02-28 |
US20230062788A1 (en) | 2023-03-02 |
KR20220131300A (ko) | 2022-09-27 |
EP4096334A1 (en) | 2022-11-30 |
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