WO2018082553A1 - 一种跨载波调度方法及装置 - Google Patents
一种跨载波调度方法及装置 Download PDFInfo
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- WO2018082553A1 WO2018082553A1 PCT/CN2017/108865 CN2017108865W WO2018082553A1 WO 2018082553 A1 WO2018082553 A1 WO 2018082553A1 CN 2017108865 W CN2017108865 W CN 2017108865W WO 2018082553 A1 WO2018082553 A1 WO 2018082553A1
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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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/535—Allocation or scheduling criteria for wireless resources based on resource usage policies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
Definitions
- the present disclosure relates to the field of communications technologies, and in particular, to a cross-carrier scheduling method and apparatus.
- the content of the new downlink control information DCI domain is as shown in Table 1, where u is the number of corresponding subchannels under different bandwidth conditions:
- the DCI in the Internet of Vehicles needs to be guaranteed to be the same length as the previous DCI format 0/1A. Therefore, it is necessary to make up the zero on the DCI of the Internet of Vehicles to ensure the same length. If these additional zeros are needed for other purposes, you can replace the zeros with other information fields.
- the cellular network Uu is dedicated to intelligent traffic on the cross-carrier scheduling sidelink.
- the user can only schedule the PC5 subframe V corresponding to the uplink subframe U through the downlink subframe D and the special subframe S, and cannot schedule the PC5 corresponding to each downlink subframe and special subframe.
- the sub-frame V (such as the sub-frame V with the striped background in Fig. 1) causes the waste of resources of the upper molecular frame in the time domain.
- An object of the present disclosure is to provide a cross-carrier scheduling method and apparatus for solving the problem of resource waste in the upper-time molecular frame in the time domain existing in the cross-carrier scheduling.
- an embodiment of the present disclosure provides a cross-carrier scheduling method, including:
- the second carrier is used for communication between user equipments.
- the step of adding a delay time to the cross-carrier scheduling time to obtain an actual cross-carrier scheduling time includes:
- Determining the value of the delay time according to the time interval between the cross-carrier scheduling time and the next cross-carrier scheduling time.
- the step of receiving the cross-carrier scheduling indication sent by the base station under the first carrier includes:
- the step of receiving the downlink control information DCI transmitted in the physical downlink control channel PDCCH/enhanced physical downlink control channel EPDCCH under the first carrier includes:
- the DCI transmitted by the PDCCH/EPDCCH is received by all the downlink subframes and the special subframes under the first carrier.
- the length of the DCI is determined based on a sum of a basic information bit length and a preset scheduling bit length in a maximum bandwidth, and a maximum value in a maximum format length in a current bandwidth;
- the basic information bit length is equal to the length of the DCI format 5A, and the maximum format length is equal to the length of the DCI format 0.
- the preset scheduling bit length includes a 3-bit semi-persistent scheduling SPS configuration indication and a 1-bit SPS activation/release indication.
- an embodiment of the present disclosure further provides a cross-carrier scheduling apparatus, including:
- a receiving module configured to receive, according to the first carrier, a cross-carrier scheduling indication sent by the base station;
- a first determining module configured to determine, according to the cross-carrier scheduling indication, a cross-carrier scheduling time indicated by the base station;
- the first processing module adds a delay time to the cross-carrier scheduling time to obtain an actual cross-carrier scheduling time
- a communication module configured to perform communication between user equipments by using the second carrier during the actual cross-carrier scheduling time.
- the cross-carrier scheduling device further includes:
- a second processing module configured to obtain, according to the subframe number used by the cross-carrier scheduling indication transmission, and a transmission subframe structure, to obtain a next cross-carrier scheduling time indicated by the base station;
- the second determining module is configured to determine a value of the delay time according to the time interval between the cross-carrier scheduling time and the next cross-carrier scheduling time.
- the receiving module includes:
- a receiving submodule configured to receive downlink control information DCI transmitted by the physical downlink control channel PDCCH/enhanced physical downlink control channel EPDCCH under the first carrier;
- Obtaining a sub-module configured to acquire a cross-carrier scheduling indication carried in the DCI, where the cross-carrier scheduling indication occupies at least 2 bits in the DCI.
- the receiving submodule includes:
- a receiving unit configured to receive DCI transmitted by the PDCCH/EPDCCH for all downlink subframes and special subframes under the first carrier.
- the length of the DCI is determined based on a sum of a basic information bit length and a preset scheduling bit length in a maximum bandwidth, and a maximum value in a maximum format length in a current bandwidth;
- the basic information bit length is equal to the length of the DCI format 5A, and the maximum format length is equal to the length of the DCI format 0.
- the preset scheduling bit length includes a 3-bit semi-persistent scheduling SPS configuration indication and a 1-bit SPS activation/release indication.
- Embodiments of the present disclosure also provide a cross-carrier scheduling apparatus including a transceiver, a processor, and a memory for storing data used by the processor when performing an operation, wherein:
- the transceiver is configured to receive, according to the first carrier, a cross-carrier scheduling indication sent by the base station;
- the processor is configured to determine, according to the cross-carrier scheduling indication received by the transceiver, a cross-carrier scheduling time indicated by the base station, and increase a delay time on the cross-carrier scheduling time to obtain Actual cross-carrier scheduling time, and
- the transceiver is further configured to perform communication between user equipments by using the second carrier in the actual cross-carrier scheduling time obtained by the processor.
- the second carrier is used for communication between user equipments.
- the user equipment after receiving the cross-carrier scheduling indication sent by the base station, the user equipment determines the cross-carrier scheduling time indicated by the base station according to the cross-carrier scheduling indication, and then the base station The inter-carrier scheduling time is increased by a delay time to obtain an actual cross-carrier scheduling time, and finally, the second carrier is used for communication between user equipments in the actual cross-carrier scheduling time.
- the cross-carrier scheduling time indicated by the base station is compensated, and the length of the scheduling time is expanded, thereby improving the resource utilization of the system.
- 1 is a schematic diagram of an existing scheduling of a TDD configuration 0 transmission subframe structure
- FIG. 2 is a schematic flow chart of steps of a cross-carrier scheduling method according to a first embodiment of the present disclosure
- FIG. 3 is a schematic flowchart 1 of a specific step of a cross-carrier scheduling method according to a first embodiment of the present disclosure
- FIG. 4 is a schematic diagram of scheduling performed by applying the cross-carrier scheduling method of the first embodiment of the present disclosure to a TDD configuration 0 transmission subframe structure;
- FIG. 5 is a second schematic flowchart of a specific step of a cross-carrier scheduling method according to a first embodiment of the present disclosure
- FIG. 6 is a schematic flowchart of steps of a cross-carrier scheduling method according to a second embodiment of the present disclosure
- FIG. 7 is a schematic diagram 1 of scheduling of a TDD configuration 5 transmission subframe structure using the cross-carrier scheduling method of the first embodiment of the present disclosure
- FIG. 8 is a schematic diagram 2 of a TDD configuration 5 transmission subframe structure, which is implemented by applying the cross-carrier scheduling method according to the first embodiment of the present disclosure
- FIG. 9 is a schematic flowchart of specific steps of a cross-carrier scheduling method according to a second embodiment of the present disclosure.
- FIG. 10 is a schematic structural diagram of a cross-carrier scheduling apparatus according to a third embodiment of the present disclosure.
- FIG. 11 is a schematic structural diagram of a cross-carrier scheduling apparatus according to a fourth embodiment of the present disclosure.
- a cross-carrier scheduling method includes:
- Step 101 Receive, according to the first carrier, a cross-carrier scheduling indication sent by the base station.
- Step 102 Determine, according to the cross-carrier scheduling indication, a cross-carrier scheduling time indicated by the base station.
- Step 103 Add a delay time to the cross-carrier scheduling time to obtain an actual cross-carrier scheduling time.
- Step 104 Perform communication between user equipments by using the second carrier in the actual cross-carrier scheduling time.
- the user equipment UE receives the cross-carrier scheduling indication sent by the eNB under the first carrier that communicates with the base station eNB, and then determines the eNB according to the cross-carrier scheduling indication.
- the indicated cross-carrier scheduling time after which a delay time is added to the cross-carrier scheduling time to obtain an actual cross-carrier scheduling time.
- the UE uses the communication with other UEs in the actual cross-carrier scheduling time.
- the two carriers communicate. In this way, by adding a delay time to the cross-carrier scheduling time for compensation, the length of the scheduling time is expanded, thereby improving the resource utilization of the system.
- the UE receives the cross-carrier scheduling indication under the Uu carrier, and after obtaining the actual cross-carrier scheduling time, the UE is dedicated to the actual cross-carrier scheduling time.
- the resources of the PC5 carrier of the ITS complete the communication between the UE and the UE.
- step 101 includes:
- Step 1011 Receive downlink control information DCI transmitted by the physical downlink control channel PDCCH/enhanced physical downlink control channel EPDCCH under the first carrier;
- Step 1012 Acquire a cross-carrier scheduling indication carried in the DCI, where the cross-carrier scheduling indication occupies at least 2 bits in the DCI.
- the cross-carrier scheduling indication is carried in the DCI, that is, the cross-carrier scheduling indication occupies at least 2 bits in the DCI.
- the DCI is always carried by the PDCCH/EPDCCH. Therefore, as shown in step 1011 and step 1012, the DCI of the PDCCH/EPDCCH transmission is received under the first carrier, and the cross-carrier scheduling indication is obtained from the DCI.
- the TDD is still used for communication between the UE and the eNB.
- the current TDD configuration (TDD configuration 0-6) can further determine the indication indicated by the base station according to the received cross-carrier scheduling indication.
- a delay time is added to the cross-carrier scheduling time to obtain an actual cross-carrier scheduling time.
- the cross-carrier scheduling indication is at least 2 bits in the DCI, and the corresponding value can be added by adding m subframes based on the adjustment of k subframes, that is, the UE is in the Uu subframe n+k.
- the PC5 subframe corresponding to +m performs communication with other UEs. If the cross-carrier scheduling indication occupies 2 bits in the DCI, the value of m ranges from [0, 3], as shown in Table 4 below. If the cross-carrier scheduling indication occupies 3 bits in the DCI, the value of m ranges from [0, 7]. ].
- the downlink subframe and the special subframe in the Uu subframe do not all have the cross-carrier scheduling function, so the cross-carrier scheduling indication can be reserved to occupy 4 bits in the DCI, correspondingly, m.
- the value range is [0, 15].
- the method further includes:
- Step 105 Obtain a next cross-carrier scheduling time indicated by the base station according to the subframe number used by the cross-carrier scheduling indication transmission and the transmission subframe structure.
- Step 106 Determine a value of the delay time according to the time interval between the cross-carrier scheduling time and the next cross-carrier scheduling time.
- Step 105 and step 106 first, based on the sub-frame number and the transmission subframe structure used for the cross-carrier scheduling indication transmission received in step 101, the next cross-carrier scheduling time indicated by the base station is obtained, and then the time interval between the two is obtained. Determine the value of the delay time to achieve optimal use of system resources.
- the interval between two cross-carrier scheduling times is only two subframes, and the maximum value of m is 2, and the value is [0, 2].
- the length of the DCI is determined based on a sum of a basic information bit length and a preset scheduling bit length under the maximum bandwidth, and a maximum value in a maximum format length under the current bandwidth;
- the basic information bit length is equal to the length of the DCI format 5A, and the maximum format length is equal to the length of the DCI format 0.
- the preset scheduling bit length includes a 3-bit semi-persistent scheduling SPS configuration indication and a 1-bit SPS activation/release indication.
- the DCI length for the 1.4MHz bandwidth is determined.
- the basic information bit length (the length of the DCI format 5A) at the maximum bandwidth of 20 MHz is determined to be 20 bits, and the preset scheduling bit length (3 bits).
- the semi-persistent scheduling SPS configuration indication and the 1-bit SPS activation/release indication are 4 bits, and are 24 bits, and the maximum format length of the 1.4 MHz bandwidth (the length of the DCI format 0) is 21 bits, and the maximum value is 24 bits.
- the UE after receiving the cross-carrier scheduling indication sent by the eNB, the UE determines the cross-carrier scheduling indicated by the base station according to the cross-carrier scheduling indication. After the time, the cross-carrier scheduling time indicated by the eNB is increased by a delay time to obtain an actual cross-carrier scheduling time, and finally, the second carrier is used for communication between user equipments in the actual cross-carrier scheduling time. By adding a delay time, the cross-carrier scheduling time indicated by the eNB is compensated, the length of the scheduling time is expanded, and the idle resources are effectively utilized, thereby improving the resource utilization of the system.
- the cross-carrier scheduling method of this embodiment can also be used in the FDD mode, and details are not described herein again.
- the cross-carrier scheduling method of the second embodiment of the present disclosure includes:
- Step 201 Receive DCI transmitted by the PDCCH/EPDCCH for all downlink subframes and special subframes under the first carrier.
- Step 202 Acquire a cross-carrier scheduling indication carried in a DCI, where the cross-carrier scheduling Indicating at least 2 bits in the DCI;
- Step 203 Determine, according to the cross-carrier scheduling indication, a cross-carrier scheduling time indicated by the base station.
- Step 204 Add a delay time to the cross-carrier scheduling time to obtain an actual cross-carrier scheduling time.
- Step 205 Perform communication between user equipments by using the second carrier in the actual cross-carrier scheduling time.
- all downlink subframes and special subframes are allocated cross-carrier scheduling capability. Therefore, the UE and the eNB can receive all downlink subframes on the first carrier by using the first carrier communication through steps 201-205. And the DCI transmitted by the PDCCH/EPDCCH in the special subframe, and acquiring the cross-carrier scheduling indication carried in the DCI, and then determining, according to the cross-carrier scheduling indication, the cross-carrier scheduling time indicated by the eNB, and then delaying The time is increased to the cross-carrier scheduling time, and the actual cross-carrier scheduling time is obtained. Finally, the UE communicates with the second carrier that communicates with other UEs in the actual cross-carrier scheduling time. In this way, by adding a delay time to the cross-carrier scheduling time for compensation, the length of the scheduling time is expanded, thereby improving the resource utilization of the system.
- the TDD is used for communication between the UE and the eNB.
- the UE receives the cross-carrier scheduling indication under the Uu carrier, and after obtaining the actual cross-carrier scheduling time, passes the resources of the PC5 carrier dedicated to the ITS in the actual cross-carrier scheduling time.
- the communication between the UE and the UE is completed.
- the downlink subframe and the special subframe of the Uu subframe of the TDD setting 5 can perform cross-carrier scheduling on the corresponding subframe position on the PC 5.
- the cross-carrier scheduling specified in the standard must occur after the DCI transmission subframe is 4 ms, and the received cross-carrier scheduling indication does not determine the cross-carrier scheduling time indicated by the base station through the table 2, but is set.
- the cross-carrier scheduling time indicated by the corresponding base station is a fixed value, and the basic delay of the cross-carrier scheduling is 4 subframes, that is, k is fixed to 4, as indicated by the dotted arrow in FIG. 7 .
- the next step is to increase the time to the cross-carrier scheduling time by using a delay time to obtain the actual cross-carrier scheduling time.
- the cross-carrier scheduling indication occupies at least 2 bits in the DCI.
- m subframes can be added based on the adjustment of 4 subframes, that is, the UE performs communication with other UEs in the PC5 subframe corresponding to the Uu subframe n+4+m. If the cross-carrier scheduling indication occupies 2 bits in the DCI, the value of m ranges from [0, 3], if the cross-carrier scheduling indication is The DCI occupies 3 bits, and the value of m ranges from [0, 7].
- the cross-carrier scheduling indication may be reserved to occupy 2 bits in the DCI, and correspondingly, the value range of m is [0, 3].
- the scheduling range of Uu subframe 0 is PC5 subframe 4-subframe 7, as indicated by the dashed arrow in the figure.
- Each Uu downlink subframe D and special subframe S have this capability, and Uu can successfully cover all PC5 subframes during cross-carrier scheduling.
- the method further includes:
- Step 206 Obtain a next cross-carrier scheduling time indicated by the base station according to the subframe number used by the cross-carrier scheduling indication transmission and the transmission subframe structure.
- Step 207 Determine a value of the delay time according to the time interval between the cross-carrier scheduling time and the next cross-carrier scheduling time.
- Step 206 and step 207 first, based on the sub-frame number and the transmission subframe structure used for the cross-carrier scheduling indication transmission received in step 202, the next cross-carrier scheduling time indicated by the base station is obtained, and then the time interval between the two is obtained. Determine the value of the delay time to achieve optimal use of system resources.
- the two-cross-carrier scheduling time has no interval subframe, and the maximum value of m is 0, which is 0.
- the UE and the eNB can receive the DCI transmitted by the PDCCH/EPDCCH in all downlink subframes and special subframes on the first carrier by using the first carrier communication. Acquire the cross-carrier scheduling indication carried in the DCI, and then, the root And determining, according to the cross-carrier scheduling indication, a cross-carrier scheduling time indicated by the eNB, and then increasing a delay time to the cross-carrier scheduling time to obtain an actual cross-carrier scheduling time, and finally, the UE is in the actual cross-carrier scheduling. During the time, communication is performed using a second carrier that communicates with other UEs.
- the cross-carrier scheduling method of this embodiment can also be used in the FDD mode, and details are not described herein again.
- the cross-carrier scheduling apparatus of the third embodiment of the present disclosure includes:
- the receiving module 1001 is configured to receive, according to the first carrier, a cross-carrier scheduling indication sent by the base station;
- the first determining module 1002 is configured to determine, according to the cross-carrier scheduling indication, a cross-carrier scheduling time indicated by the base station;
- the first processing module 1003 adds a delay time to the cross-carrier scheduling time to obtain an actual cross-carrier scheduling time.
- the communication module 1004 is configured to perform communication between user equipments by using the second carrier during the actual cross-carrier scheduling time.
- the cross-carrier scheduling device further includes:
- a second processing module configured to obtain, according to the subframe number used by the cross-carrier scheduling indication transmission, and a transmission subframe structure, to obtain a next cross-carrier scheduling time indicated by the base station;
- the second determining module is configured to determine a value of the delay time according to the time interval between the cross-carrier scheduling time and the next cross-carrier scheduling time.
- the receiving module includes:
- a receiving submodule configured to receive downlink control information DCI transmitted by the physical downlink control channel PDCCH/enhanced physical downlink control channel EPDCCH under the first carrier;
- Obtaining a sub-module configured to acquire a cross-carrier scheduling indication carried in the DCI, where the cross-carrier scheduling indication occupies at least 2 bits in the DCI.
- the receiving submodule includes:
- a receiving unit configured to receive DCI transmitted by the PDCCH/EPDCCH for all downlink subframes and special subframes under the first carrier.
- the UE receives the eNB to send under the first carrier.
- the cross-carrier scheduling time indicated by the base station is determined according to the cross-carrier scheduling indication, and then the inter-carrier scheduling time indicated by the eNB is increased by a delay time to obtain an actual cross-carrier scheduling time, and finally During the actual cross-carrier scheduling time, the second carrier is used for communication between user equipments.
- the cross-carrier scheduling time indicated by the eNB is compensated, the length of the scheduling time is expanded, and the idle resources are effectively utilized, thereby improving the resource utilization of the system.
- cross-carrier scheduling apparatus provided by the third embodiment of the present disclosure is the apparatus for applying the cross-carrier scheduling method provided by the foregoing first embodiment and the cross-carrier scheduling method provided by the second embodiment, where the cross-carrier scheduling method is All of the embodiments are applicable to the cross-carrier scheduling device and both achieve the same or similar benefits.
- the fourth embodiment of the present disclosure further provides a cross-carrier scheduling apparatus, where the cross-carrier scheduling apparatus includes: a processor 1100; and a processor through a bus interface a 1100-connected memory 1120, and a transceiver 1110 coupled to the processor 1100 via a bus interface; the memory is configured to store programs and data used by the processor when performing operations;
- the transceiver 1110 is configured to receive, according to the first carrier, a cross-carrier scheduling indication sent by the base station;
- the processor 1100 determines, according to the cross-carrier scheduling indication, a cross-carrier scheduling time indicated by the base station;
- the processor 1100 is further configured to increase a delay time on the cross-carrier scheduling time to obtain an actual cross-carrier scheduling time.
- the transceiver 1110 is further configured to perform communication between user equipments by using the second carrier during the actual cross-carrier scheduling time.
- the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1100 and various circuits of memory represented by memory 1120.
- the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
- the bus interface provides an interface.
- the transceiver 1110 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
- the user interface 1130 may also be an interface capable of externally connecting the required devices, Devices that are connected include, but are not limited to, a keypad, a display, a speaker, a microphone, a joystick, and the like.
- the processor 1100 is responsible for managing the bus architecture and general processing, and the memory 1120 can store data used by the processor 1100 in performing operations.
- cross-carrier scheduling apparatus provided by the fourth embodiment of the present disclosure corresponds to the cross-carrier scheduling apparatus provided by the foregoing third embodiment, so the cross-carrier scheduling method provided by the foregoing first embodiment and the second embodiment All of the embodiments are applicable to the cross-carrier scheduling device and both achieve the same or similar benefits.
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Abstract
Description
2比特 | m |
00 | 0 |
01 | 1 |
10 | 2 |
11 | 3 |
Claims (12)
- 一种跨载波调度方法,包括:在第一载波下接收基站发送的跨载波调度指示;根据所述跨载波调度指示,确定所述基站所指示的跨载波调度时间;在所述跨载波调度时间上增加延时时间,得到实际跨载波调度时间;在所述实际跨载波调度时间内,使用第二载波进行用户设备间通信。
- 根据权利要求1所述的跨载波调度方法,其中,在所述跨载波调度时间上增加延时时间,得到实际跨载波调度时间的步骤之前,所述方法还包括:根据所述跨载波调度指示传输所使用的子帧号及传输子帧结构,得到所述基站所指示的下一跨载波调度时间;根据所述跨载波调度时间和所述下一跨载波调度时间的时间间隔,确定所述延时时间的取值。
- 根据权利要求1所述的跨载波调度方法,其中,所述在第一载波下接收所述基站发送的跨载波调度指示的步骤,包括:在所述第一载波下接收通过物理下行控制信道PDCCH/增强的物理下行控制信道EPDCCH传输的下行控制信息DCI;获取携带在所述DCI中的跨载波调度指示,其中,所述跨载波调度指示在所述DCI中至少占位2比特。
- 根据权利要求3所述的跨载波调度方法,其中,所述在第一载波下接收物理下行控制信道PDCCH/增强的物理下行控制信道EPDCCH中传输的下行控制信息DCI的步骤,包括:在所述第一载波下接收全部的下行子帧和特殊子帧通过所述PDCCH/EPDCCH传输的所述DCI。
- 根据权利要求3或4所述的跨载波调度方法,其中,所述DCI的长度是基于最大带宽下的基础信息位长度和预设调度位长度的总和,以及当前带宽下的最大格式长度中的最大值确定的;其中,所述基础信息位长度等于DCI格式5A的长度,最大格式长度等于DCI格式0的长度,所述预设调度位长度包括3比特bit的半持续调度SPS配置指 示和1bit的SPS激活/释放指示。
- 一种跨载波调度装置,包括:接收模块,用于在第一载波下接收基站发送的跨载波调度指示;第一确定模块,用于根据所述跨载波调度指示,确定所述基站所指示的跨载波调度时间;第一处理模块,在所述跨载波调度时间上增加延时时间,得到实际跨载波调度时间;通信模块,用于在所述实际跨载波调度时间内,使用第二载波进行用户设备间通信。
- 根据权利要求6所述的跨载波调度装置,还包括:第二处理模块,用于在根据所述跨载波调度指示传输所使用的子帧号及传输子帧结构,得到所述基站所指示的下一跨载波调度时间;第二确定模块,用于根据所述跨载波调度时间和所述下一跨载波调度时间的时间间隔,确定所述延时时间的取值。
- 根据权利要求6所述的跨载波调度装置,其中,所述接收模块包括:接收子模块,用于在所述第一载波下接收通过物理下行控制信道PDCCH/增强的物理下行控制信道EPDCCH传输的下行控制信息DCI;获取子模块,用于获取携带在所述DCI中的跨载波调度指示,其中,所述跨载波调度指示在所述DCI中至少占位2比特。
- 根据权利要求8所述的跨载波调度装置,其中,所述接收子模块包括:接收单元,用于在所述第一载波下接收全部的下行子帧和特殊子帧通过PDCCH/EPDCCH传输的所述DCI。
- 根据权利要求8或9所述的跨载波调度装置,其中,所述DCI的长度是基于最大带宽下的基础信息位长度和预设调度位长度的总和,以及当前带宽下的最大格式长度中的最大值确定的;其中,所述基础信息位长度等于DCI格式5A的长度,最大格式长度等于DCI格式0的长度,所述预设调度位长度包括3比特bit的半持续调度SPS配置指示和1bit的SPS激活/释放指示。
- 一种跨载波调度装置,包括收发机、处理器以及用于存储所述处理器 在执行操作时所使用的程序或数据的存储器,其中:所述收发机,用于在第一载波下接收基站发送的跨载波调度指示;所述处理器,用于根据所述收发机接收的所述跨载波调度指示,确定所述基站所指示的跨载波调度时间,在所述跨载波调度时间上增加延时时间,得到实际跨载波调度时间,以及所述收发机,还用于在所述处理器得到的所述实际跨载波调度时间内,使用第二载波进行用户设备间通信。
- 一种计算机可读存储介质,所述计算机可读存储介质上存储有实现如下步骤的指令:在第一载波下接收基站发送的跨载波调度指示;根据所述跨载波调度指示,确定所述基站所指示的跨载波调度时间;在所述跨载波调度时间上增加延时时间,得到实际跨载波调度时间;在所述实际跨载波调度时间内,使用第二载波进行用户设备间通信。
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CN108024379B (zh) | 2019-08-30 |
US20190281612A1 (en) | 2019-09-12 |
JP6898035B2 (ja) | 2021-07-07 |
US11129177B2 (en) | 2021-09-21 |
TWI654868B (zh) | 2019-03-21 |
KR102207118B1 (ko) | 2021-01-22 |
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KR20190073524A (ko) | 2019-06-26 |
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