WO2019086012A1 - 一种通信方法及装置 - Google Patents

一种通信方法及装置 Download PDF

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Publication number
WO2019086012A1
WO2019086012A1 PCT/CN2018/113823 CN2018113823W WO2019086012A1 WO 2019086012 A1 WO2019086012 A1 WO 2019086012A1 CN 2018113823 W CN2018113823 W CN 2018113823W WO 2019086012 A1 WO2019086012 A1 WO 2019086012A1
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WO
WIPO (PCT)
Prior art keywords
uplink carrier
uplink
dci
terminal device
indication field
Prior art date
Application number
PCT/CN2018/113823
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English (en)
French (fr)
Inventor
郭志恒
谢信乾
沈祖康
龙毅
赵旸
万蕾
马瑞泽大卫•简-玛丽
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to BR112020008614-2A priority Critical patent/BR112020008614A2/pt
Priority to EP18872477.7A priority patent/EP3706344B1/en
Priority to JP2020524467A priority patent/JP6987990B2/ja
Publication of WO2019086012A1 publication Critical patent/WO2019086012A1/zh
Priority to US16/862,296 priority patent/US11330579B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0046—Code rate detection or code type detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
    • H04L1/0038—Blind format detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0072—Error control for data other than payload data, e.g. control data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
    • H04L1/0079—Formats for control data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • 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
    • 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
    • H04L5/0042—Arrangements for allocating sub-channels of the transmission path intra-user or intra-terminal allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—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

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a communication method and apparatus.
  • communication can be classified into different types depending on the type of the transmitting node and the receiving node.
  • transmitting information to a terminal device by a network device is referred to as downlink communication
  • transmitting information to the network device by the terminal device is referred to as uplink communication.
  • LTE long term evolution
  • LTE-A long term evolution advanced
  • the frequency division duplex (FDD) mode can be mainly divided according to the duplex mode.
  • TDD time division duplex
  • the downlink carrier and the uplink carrier are carriers of the same carrier frequency.
  • the uplink and downlink decoupling technology can be applied, that is, in addition to the TDD carrier for uplink and downlink communication,
  • the uplink communication is performed by using an additional uplink carrier, which is generally referred to as a supplementary uplink (SUL) carrier. That is, the NR terminal device can have two uplink carriers simultaneously for uplink communication.
  • SUL supplementary uplink
  • the network device sends downlink control information (DCI) to the terminal device on some predetermined downlink resources. Accordingly, the terminal device detects and acquires the DCI by using the blind detection manner on the downlink resources. That is, the terminal device attempts to detect the DCI on multiple possible control resources carrying the DCI. For a case where the terminal device can be scheduled to transmit the PUSCH on two or more uplink carriers, the specific technical solution still needs in-depth exploration and research.
  • DCI downlink control information
  • the present application provides a communication method and apparatus for improving the efficiency of blind detection of DCI by a terminal device that can be scheduled on two or more uplink carriers.
  • the application provides a communication method, including:
  • the terminal device receives the downlink control information DCI from the network device on the first downlink carrier, where the DCI is used to indicate that the terminal device sends an uplink signal to the network device on the first uplink carrier or the second uplink carrier;
  • the number of bits is equal to the number of the second bits, where the number of bits is the number of bits of the DCI when the terminal device indicates that the terminal device sends an uplink signal to the network device on the first uplink carrier,
  • the second bit number is the number of bits of the DCI when the DCI indicates that the terminal device sends an uplink signal to the network device on the second uplink carrier;
  • the terminal device determines the first uplink carrier or the second uplink carrier according to the DCI.
  • the terminal device can blindly detect the DCI in the search space according to the first bit number (or the second bit number), that is, blindly according to the number of DCI bits in the search space.
  • the detection can be performed, thereby improving the efficiency of the blind detection of the DCI by the terminal device, and effectively avoiding the problem that the terminal device in the prior art may need to blindly detect the DCI according to the number of different DCI bits.
  • the DCI includes a first indication field, where the first indication field is used to indicate the first uplink carrier or the second uplink carrier.
  • the terminal device determines the first uplink carrier or the second uplink carrier according to the DCI, including:
  • the terminal device receives a first message from the network device, where the first message is used to indicate that the DCI includes a first indication field, and the first indication field is used to indicate the first uplink carrier or the second Uplink carrier
  • the first uplink carrier includes at least one uplink bandwidth portion BWP
  • the second uplink carrier includes at least one uplink BWP.
  • the first indication field is used to indicate one uplink BWP of the first uplink carrier or one uplink BWP of the second uplink carrier.
  • the terminal device has at least two serving cells, and the first uplink carrier and the second uplink carrier belong to one of the at least two serving cells;
  • the first indication field is used to indicate one of the at least two serving cells.
  • the terminal device has at least two serving cells, and the first uplink carrier and the second uplink carrier belong to one of the at least two serving cells, in the DCI Also including a third indicator field;
  • the third indication field indicates a first serving cell of the at least two serving cells
  • the first indication field indicates one uplink carrier in the first serving cell.
  • the DCI includes a second indication field, where the second indication field is used to indicate that the terminal device is to the network on the first uplink carrier or the second uplink carrier.
  • the device sends a frequency resource of the uplink signal; the third bit number is equal to the fourth bit number, where the third bit number is that the DCI indicates that the terminal device sends an uplink signal to the network device on the first uplink carrier.
  • the number of bits of the second indication field, where the fourth bit number is the number of bits of the second indication field when the DCI indicates that the terminal device sends an uplink signal to the network device on the second uplink carrier.
  • the first message is a broadcast message or a system message
  • the DCI is a fallback DCI
  • the first downlink carrier, the first uplink carrier, and the second uplink carrier belong to the same cell.
  • the application provides a communication method, where the method includes:
  • the network device determines the DCI
  • the network device sends the DCI to the terminal device on the first downlink carrier, where the DCI is used to instruct the terminal device to send an uplink signal to the network device on the first uplink carrier or the second uplink carrier;
  • the number of bits is equal to the number of second bits, where the number of bits is the number of bits of the DCI when the terminal device indicates that the terminal device sends an uplink signal to the network device on the first uplink carrier.
  • the second bit number is the number of bits of the DCI when the DCI indicates that the terminal device sends an uplink signal to the network device on the second uplink carrier.
  • the terminal device can blindly detect the DCI in the search space according to the first bit number (or the second bit number), that is, in the search.
  • blind detection can be performed according to the number of DCI bits, thereby improving the efficiency of blind detection of DCI by the terminal device, and effectively avoiding the problem that the terminal device in the prior art may need to separately detect DCI according to multiple different DCI bit numbers. .
  • the DCI includes a first indication field, where the first indication field is used to indicate the first uplink carrier or the second uplink carrier.
  • the method further includes:
  • the network device sends a first message to the terminal device, where the first message is used to indicate that the DCI includes a first indication domain, and the first indication domain is used to indicate the first uplink carrier or the The second uplink carrier.
  • the first uplink carrier includes at least one uplink bandwidth portion BWP
  • the second uplink carrier includes at least one uplink BWP.
  • the first indication field is used to indicate one uplink BWP of the first uplink carrier or one uplink BWP of the second uplink carrier.
  • the terminal device has at least two serving cells, and the first uplink carrier and the second uplink carrier belong to one of the at least two serving cells;
  • the first indication field is used to indicate one of the at least two serving cells.
  • the terminal device has at least two serving cells, and the first uplink carrier and the second uplink carrier belong to one of the at least two serving cells, in the DCI Also including a third indicator field;
  • the third indication field indicates a first serving cell of the at least two serving cells
  • the first indication field indicates one uplink carrier in the first serving cell.
  • the DCI includes a second indication field, where the second indication field is used to indicate that the terminal device is to the network on the first uplink carrier or the second uplink carrier.
  • the device sends a frequency resource of the uplink signal; the third bit number is equal to the fourth bit number, where the third bit number is that the DCI indicates that the terminal device sends an uplink signal to the network device on the first uplink carrier.
  • the number of bits of the second indication field, where the fourth bit number is the number of bits of the second indication field when the DCI indicates that the terminal device sends an uplink signal to the network device on the second uplink carrier.
  • the first message is a broadcast message or a system message
  • the DCI is a fallback DCI
  • the first downlink carrier, the first uplink carrier, and the second uplink carrier belong to the same cell.
  • the application provides a terminal device, where the terminal device includes:
  • a transceiver module configured to receive a DCI from the network device on the first downlink carrier, where the DCI is used to instruct the terminal device to send an uplink signal to the network device on the first uplink carrier or the second uplink carrier;
  • the number of bits is equal to the number of the second bits, where the number of bits is the number of bits of the DCI when the terminal device indicates that the terminal device sends an uplink signal to the network device on the first uplink carrier,
  • the second bit number is the number of bits of the DCI when the DCI indicates that the terminal device sends an uplink signal to the network device on the second uplink carrier;
  • a processing module configured to determine the first uplink carrier or the second uplink carrier according to the DCI.
  • the DCI includes a first indication field, where the first indication field is used to indicate the first uplink carrier or the second uplink carrier.
  • the transceiver module is further configured to receive a first message from the network device, where the first message is used to indicate that the DCI includes a first indication domain, where the first indication domain is used. Indicating the first uplink carrier or the second uplink carrier;
  • the processing module is specifically configured to determine the first uplink carrier or the second uplink carrier according to the first indication domain.
  • the first uplink carrier includes at least one uplink bandwidth portion BWP
  • the second uplink carrier includes at least one uplink BWP.
  • the first indication field is used to indicate one uplink BWP of the first uplink carrier or one uplink BWP of the second uplink carrier.
  • the terminal device has at least two serving cells, and the first uplink carrier and the second uplink carrier belong to one of the at least two serving cells;
  • the first indication field is used to indicate one of the at least two serving cells.
  • the terminal device has at least two serving cells, and the first uplink carrier and the second uplink carrier belong to one of the at least two serving cells, in the DCI Also including a third indicator field;
  • the third indication field indicates a first serving cell of the at least two serving cells
  • the first indication field indicates one uplink carrier in the first serving cell.
  • the DCI includes a second indication field, where the second indication field is used to indicate that the terminal device is to the network on the first uplink carrier or the second uplink carrier.
  • the device sends a frequency resource of the uplink signal; the third bit number is equal to the fourth bit number, where the third bit number is that the DCI indicates that the terminal device sends an uplink signal to the network device on the first uplink carrier.
  • the number of bits of the second indication field, where the fourth bit number is the number of bits of the second indication field when the DCI indicates that the terminal device sends an uplink signal to the network device on the second uplink carrier.
  • the first message is a broadcast message or a system message
  • the DCI is a fallback DCI
  • the first downlink carrier, the first uplink carrier, and the second uplink carrier belong to the same cell.
  • the application provides a network device, where the network device includes:
  • the transceiver module is configured to send the DCI to the terminal device on the first downlink carrier, where the DCI is used to indicate that the terminal device sends an uplink signal to the network device on the first uplink carrier or the second uplink carrier.
  • the first bit number is equal to the second bit number, where the first bit number is the number of bits of the DCI when the DCI indicates that the terminal device sends an uplink signal to the network device on the first uplink carrier,
  • the second number of bits is the number of bits of the DCI when the DCI indicates that the terminal device sends an uplink signal to the network device on the second uplink carrier.
  • the DCI includes a first indication field, where the first indication field is used to indicate the first uplink carrier or the second uplink carrier.
  • the transceiver module is further configured to send a first message to the terminal device, where the first message is used to indicate that the DCI includes a first indication domain, and the first indication domain is And used to indicate the first uplink carrier or the second uplink carrier.
  • the first uplink carrier includes at least one uplink bandwidth portion BWP
  • the second uplink carrier includes at least one uplink BWP.
  • the first indication field is used to indicate one uplink BWP of the first uplink carrier or one uplink BWP of the second uplink carrier.
  • the terminal device has at least two serving cells, and the first uplink carrier and the second uplink carrier belong to one of the at least two serving cells;
  • the first indication field is used to indicate one of the at least two serving cells.
  • the terminal device has at least two serving cells, and the first uplink carrier and the second uplink carrier belong to one of the at least two serving cells, in the DCI Also including a third indicator field;
  • the third indication field indicates a first serving cell of the at least two serving cells
  • the first indication field indicates one uplink carrier in the first serving cell.
  • the DCI includes a second indication field, where the second indication field is used to indicate that the terminal device is to the network on the first uplink carrier or the second uplink carrier.
  • the device sends a frequency resource of the uplink signal; the third bit number is equal to the fourth bit number, where the third bit number is that the DCI indicates that the terminal device sends an uplink signal to the network device on the first uplink carrier.
  • the number of bits of the second indication field, where the fourth bit number is the number of bits of the second indication field when the DCI indicates that the terminal device sends an uplink signal to the network device on the second uplink carrier.
  • the first message is a broadcast message or a system message
  • the DCI is a fallback DCI
  • the first downlink carrier, the first uplink carrier, and the second uplink carrier belong to the same cell.
  • the present application provides a communication device, which may be a terminal device, and has a function in implementing the foregoing method in the first aspect;
  • the communication device includes: a communication module, a processor;
  • the communication module is configured to perform communication interaction with other devices, for example, receiving downlink control information DCI from the network device on the first downlink carrier, where the DCI is used to indicate that the terminal device is in the first uplink carrier or the second Sending an uplink signal to the network device on the uplink carrier; the first number of bits is equal to the second number of bits, where the first bit number is that the DCI indicates that the terminal device is on the first uplink carrier to the network.
  • the number of bits of the DCI when the device sends an uplink signal where the number of bits of the DCI is that the DCI indicates that the terminal device sends an uplink signal to the network device on the second uplink carrier.
  • the communication module may be an RF circuit, a Wi-Fi module, a communication interface, a Bluetooth module, or the like.
  • the processor is configured to implement the functions of the processing module in the third aspect, including:
  • the communication device may further include: the memory, for storing a program or the like.
  • the program can include program code, the program code including instructions.
  • the memory may include random access memory (RAM), and may also include non-volatile memory, such as at least one disk storage.
  • the processor executes the application stored in the memory to implement the above functions.
  • the communication module, the processor and the memory can be connected to each other through the bus;
  • the bus can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (extended industry standard architecture). EISA) bus and so on.
  • PCI peripheral component interconnect
  • EISA extended industry standard architecture
  • the bus can be divided into an address bus, a data bus, a control bus, and the like.
  • the present application provides a communication device, which may be a network device, and has a function in implementing the foregoing method in the second aspect;
  • the communication device includes: a communication module, a processor;
  • the processor is configured to implement the functions of the processing module in the fourth aspect, including: determining a DCI;
  • the communication module is configured to perform communication interaction with other devices, for example, sending the DCI to a terminal device on a first downlink carrier, where the DCI is used to indicate that the terminal device is on a first uplink carrier or a second uplink.
  • the communication module may be an RF circuit, a Wi-Fi module, a communication interface, a Bluetooth module, or the like.
  • the communication device may further include: the memory, for storing a program or the like.
  • the program can include program code, the program code including instructions.
  • the memory may contain RAM and may also include non-volatile memory, such as at least one disk storage.
  • the processor executes the application stored in the memory to implement the above functions.
  • the communication module, the processor and the memory can be connected to each other through the bus;
  • the bus can be a PCI bus or an EISA bus or the like.
  • the bus can be divided into an address bus, a data bus, a control bus, and the like.
  • the present application further provides a communication system, which includes the terminal device provided by any one of the above designs, and may further include a network device that interacts with the terminal device in the solution provided by the present application.
  • the present application also provides a computer storage medium having stored therein a software program that, when read and executed by one or more processors, implements the communication methods provided by the various aspects or various possible designs described above .
  • the present application also provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the communication methods described above in various aspects or in various possible designs.
  • the present application also provides a computer program that, when run on a computer, causes the computer to perform the communication methods described above in various aspects or in various possible designs.
  • FIG. 1 is a schematic diagram of a system architecture applicable to the present application
  • FIG. 2a is a schematic diagram of a possible scenario applicable to the present application.
  • FIG. 2b is a schematic diagram of another possible scenario applicable to the present application.
  • FIG. 3 is a schematic flowchart of a communication method provided by the present application.
  • FIG. 4 is a schematic structural diagram of a communication device provided by the present application.
  • FIG. 5 is a schematic structural diagram of a communication device according to the present application.
  • FIG. 6 is a schematic structural diagram of a communication device according to the present application.
  • FIG. 7 is a schematic structural diagram of a communication apparatus further provided by the present application.
  • FIG. 1 is a schematic diagram of a system architecture applicable to the present application.
  • the system architecture includes a network device 101, one or more terminal devices, such as the terminal device 1021, the terminal device 1022, and the terminal device 1023 shown in FIG. 1.
  • the network device 101 can transmit downlink data to the terminal device 1021, the terminal device 1022, and the terminal device 1023 through the network, and the terminal device 1021, the terminal device 1022, and the terminal device 1023 can transmit uplink data to the network device 101 through the network.
  • the network device may be a base station (BS).
  • a base station device also referred to as a base station, is a device deployed in a wireless access network to provide wireless communication functionality.
  • a device providing a base station function in a 2G network includes a base transceiver station (BTS) and a base station controller (BSC), and the device providing the base station function in the 3G network includes a Node B (NodeB) and the wireless device.
  • BTS base transceiver station
  • BSC base station controller
  • NodeB Node B
  • a radio network controller which provides a base station function in a 4G network, includes an evolved NodeB (eNB), and a device that provides a base station function in a 5G network, including a new radio node B (New Radio NodeB) , gNB), Centralized Unit (CU), Distributed Unit and new wireless controller.
  • eNB evolved NodeB
  • gNB new radio node B
  • CU Centralized Unit
  • Distributed Unit new wireless controller
  • a terminal device is a device with wireless transceiver capability that can be deployed on land, indoors or outdoors, handheld or on-board; it can also be deployed on the water (such as ships); it can also be deployed in the air (such as airplanes, balloons, and Satellite, etc.).
  • the terminal device may be a mobile phone, a tablet, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, and industrial control ( Wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid, transportation security Wireless terminal equipment in safety), wireless terminal equipment in smart city, wireless terminal equipment in smart home, and the like.
  • system architecture shown in FIG. 1 is taken as an example, but is not limited thereto.
  • present application is also applicable to the system architecture of the macro base station and the micro base station communication, and is not limited thereto.
  • the communication system applicable to the above system architecture includes but is not limited to: time division duplexing-long term evolution (TDD LTE), frequency division duplexing-long term evolution (FDD LTE) Long term evolution-advanced (LTE-A), and various wireless communication systems (eg, 5G NR systems) that are evolving in the future.
  • TDD LTE time division duplexing-long term evolution
  • FDD LTE frequency division duplexing-long term evolution
  • LTE-A Long term evolution-advanced
  • various wireless communication systems eg, 5G NR systems
  • the terminal device can use the uplink supplemental carrier to send an uplink signal to the network device.
  • the uplink supplementary carrier refers to only the uplink resource used for the current standard transmission.
  • the carrier A is only used for uplink transmission of the NR, and the carrier is not used for downlink transmission or the carrier A is used for the LTE communication system.
  • the carrier A is a supplementary uplink carrier.
  • the terminal device a1 performs downlink and uplink communication (FDD) using carriers of frequencies F1 and F2, respectively, and the network device b1 is configured with an uplink supplementary carrier (carrier F3), and is a terminal device.
  • the terminal device a can perform downlink signal transmission using the carrier F1 and uplink signal transmission using the carrier F2 or the carrier F3.
  • the downlink carrier F1, the uplink carrier F2, and the uplink carrier F3 belong to the same cell, or the downlink carrier F1, the uplink carrier F2, and the uplink carrier F3 belong to the same bandwidth combination, or the downlink carrier F1 corresponds to the uplink carrier F2.
  • the terminal device a2 uses the TDD carrier with the frequency F4 to perform uplink and downlink communication respectively, and the network device b2 configures the uplink supplementary carrier (carrier F5), and configures dynamics for the terminal device a2.
  • the terminal device a2 may perform downlink signal transmission using the downlink time slot of the carrier F4, and perform uplink signal transmission using the uplink time slot of the carrier F4 or uplink signal transmission using the carrier F5.
  • the carrier F4 and the uplink carrier F5 belong to the same cell.
  • a terminal device can be scheduled to transmit an uplink signal on two or more uplink carriers, taking two uplink carriers (a first uplink carrier and a second uplink carrier) as an example, when the network device schedules the terminal When the device sends an uplink signal on the first uplink carrier, the network device sends DCI1 to the terminal device; when the network device schedules the terminal device to send an uplink signal on the second uplink carrier, the network device sends DCI2, DCI1 and DCI2 to the terminal device.
  • two uplink carriers a first uplink carrier and a second uplink carrier
  • the number of bits may be different, so that the terminal device needs to blindly detect the DCI according to the number of bits of the DCI1 and the number of bits of the DCI2, that is, the terminal device needs to perform blind detection according to the number of two different DCI bits, respectively, resulting in blind detection of DCI. Longer time and less efficient.
  • the present application provides a communication method, including: receiving, by a terminal device, downlink control information DCI from a network device on a first downlink carrier, and determining, according to the DCI, the first uplink carrier or the second uplink carrier.
  • the DCI is configured to instruct the terminal device to send an uplink signal to the network device on a first uplink carrier or a second uplink carrier; the first number of bits is equal to the second number of bits, and the first number of bits is And indicating, by the DCI, the number of bits of the DCI when the terminal device sends an uplink signal to the network device on the first uplink carrier, where the second bit number indicates that the terminal device is in the DCI The number of bits of the DCI when the uplink signal is sent to the network device on the second uplink carrier.
  • the terminal device can blindly detect the DCI in the search space according to the first bit number (or the second bit number), that is, according to the number of DCI bits in the search space.
  • the blind detection can be performed, thereby improving the efficiency of the blind detection of the DCI by the terminal device, and effectively avoiding the problem that the terminal device in the prior art may need to blindly detect the DCI according to the number of different DCI bits.
  • the uplink carrier involved in the present application may be referred to as an uplink resource or an uplink frequency or an uplink.
  • the downlink carrier may refer to a downlink resource or a downlink frequency or a downlink.
  • the technical nature of the carrier is a piece of frequency resource in the frequency domain, and the frequency resource may be referred to as a carrier in the communication field, and may be described by other names, which is not limited in this application.
  • the communication method in the present application is described by taking a case where the terminal device can be scheduled on the first uplink carrier and the second uplink carrier, and the method is also applicable to the terminal device being able to be scheduled on multiple uplink carriers.
  • the DCI indicates that the terminal device sends the uplink signal to the network device on different uplink carriers, and the number of bits of the DCI is equal.
  • the number of bits of the DCI can also be understood as the size or length of the DCI.
  • the number of bits of the DCI can be the number of bits of the payload of the DCI, or the number of bits of the total load of the DCI, for example, the DCI.
  • the total load may include padding bits or may not include padding bits.
  • FIG. 3 is a schematic flowchart of a communication method provided by the present application, as shown in FIG. 3, including:
  • step 301 the network device determines the DCI.
  • the network device determines that the uplink carrier to be scheduled is the first uplink carrier or the second uplink carrier, and generates DCI according to the determined first uplink carrier or the second uplink carrier. Specifically, if the network device determines that the uplink carrier to be scheduled is the first uplink carrier, the generated DCI is used to indicate that the terminal device sends an uplink signal to the network device on the first uplink carrier; if the network device determines that the uplink carrier to be scheduled is The second uplink carrier is used to instruct the terminal device to send an uplink signal to the network device on the second uplink carrier.
  • the network device may determine the uplink carrier to be scheduled according to a plurality of factors, for example, the network device may be determined according to the current utilization ratio of the first uplink carrier and the second uplink carrier, which is not limited.
  • any one of the first uplink carrier and the second uplink carrier may be an uplink supplementary carrier.
  • the first uplink carrier is an NR TDD uplink carrier and the second uplink carrier is an uplink supplemental carrier.
  • Step 302 The network device sends the DCI to the terminal device on the first downlink carrier.
  • the DCI is used to instruct the terminal device to send an uplink signal to the network device on the first uplink carrier or the second uplink carrier; the first number of bits is equal to the second number of bits, and the first number of bits is The DCI indicates the number of bits of the DCI when the terminal device sends an uplink signal to the network device on the first uplink carrier, where the second bit number is that the DCI indicates that the terminal device is in the The number of bits of the DCI when the uplink signal is sent to the network device on the second uplink carrier.
  • the uplink signal may be an uplink data signal, or may be an uplink control signal or an uplink measurement signal, and the type of the uplink signal is not limited herein.
  • the uplink data signal may be a physical-layer uplink shared channel (PUSCH), or may be another name, as long as the signal is substantially the same as the uplink data signal, and is within the protection scope of the present application;
  • the uplink measurement signal may specifically be a sounding reference signal (SRS), and may of course be other names.
  • SRS sounding reference signal
  • the first downlink carrier, the first uplink carrier, and the second uplink carrier belong to the same cell, or the first downlink carrier, the first uplink carrier, and the second uplink carrier belong to the same bandwidth combination, or
  • the first downlink carrier corresponds to the first uplink carrier and the second uplink carrier, or the first uplink carrier and the second uplink carrier correspond to the first downlink carrier.
  • the first uplink carrier is an NR TDD uplink carrier and the second uplink carrier is an uplink supplementary carrier
  • the first downlink carrier is an NR TDD downlink carrier, which may of course be reversed.
  • Step 303 The terminal device receives the DCI from the network device on the first downlink carrier.
  • the terminal device can blindly detect and acquire the DCI on the search space according to the first bit number (or the second bit number).
  • Step 304 The terminal device determines, according to the DCI, a first uplink carrier or a second uplink carrier.
  • the uplink signal may be sent to the network device on the first uplink carrier; if the terminal device determines the second uplink carrier according to the DCI, the second uplink carrier may be in the network.
  • the device sends an uplink signal.
  • the DCI may include a first indication field, where the first indication field is used to indicate the first uplink carrier or the second uplink carrier, and, in the foregoing step 304, the terminal device may determine the first uplink according to the first indication domain.
  • Carrier or second uplink carrier It should be noted that there may be multiple ways for the terminal device to determine the first uplink carrier or the second uplink carrier according to the DCI. Here, only one possible determination manner is used.
  • the terminal device may send an uplink signal to the network device on the uplink carrier or the second uplink carrier indicated by the first indication field.
  • the correspondence between the state of the first indication field and the indicated uplink carrier may be set in advance, or the corresponding relationship may be configured by the network device in advance and sent to the terminal device.
  • the terminal device can determine the state of the first indication domain by using the first indication carrier, and then determine the first uplink carrier or the second uplink according to the correspondence between the state of the first indication domain and the indicated uplink carrier. Carrier.
  • the first indication field may include 1 bit, and the correspondence between the status of the first indication field and the indicated uplink carrier may be as shown in Table 1a or Table 1b.
  • the first indication field may be a cell common or cell specific domain. It should be understood that all terminal devices in the cell have the same understanding of the first indication domain. For example, for any terminal device, when the state of the first indication field is 0, the indicated uplink carrier is the NR TDD uplink carrier, and when the state of the first indication field is 1, the indicated uplink carrier is SUL.
  • the first indication field may also be a UE-specific domain. It should be understood that the terminal device in the cell may have different understandings of the first indication domain.
  • the uplink carrier when the status of the first indication field is 0, it indicates that the uplink carrier is an NR TDD uplink carrier, and when the status of the first indication field is 1, the indicated uplink carrier is SUL; for the second terminal The device indicates that the uplink carrier is SUL when the state of the first indicator field is 0, and the uplink carrier that is indicated by the NR TDD uplink carrier when the state of the first indicator field is 1.
  • the type of DCI that the network device sends to the terminal device may be multiple.
  • the DCI of the first indication domain may also be multiple.
  • the first indication domain included in the DCI may be It is a domain common to the cell.
  • the first indication domain included may be a domain dedicated to the terminal device.
  • the maximum bandwidth of one carrier can reach 400MHz, but the maximum bandwidth capability supported by the terminal device may not reach such a large bandwidth.
  • the network device needs to first configure one or more bandwidth parts (BWPs) for the terminal device in the carrier, and then allocate resources to the terminal device within the range of the BWP.
  • the first uplink carrier may include at least one uplink BWP
  • the second uplink carrier may include at least one uplink BWP.
  • the first uplink carrier includes two uplink BWPs, which are uplink BWP1a, respectively.
  • the second uplink carrier includes two uplink BWPs, which are uplink BWP2a and uplink BWP2b.
  • 1a, 1b, 2a, 2b are only used to distinguish four different BWPs, and do not limit the numbering method of BWP.
  • These four BWPs can also be numbered as BWP0, BWP1, BWP2 and BWP3. Other numbering methods.
  • the DCI needs to indicate one uplink BWP of the first uplink carrier or one uplink BWP of the second uplink carrier, such that the terminal device may be in an uplink BWP of the first uplink carrier indicated by the DCI or the An uplink BWP is sent to the network device on one of the second uplink carriers.
  • the DCI includes a first indication field, where the first indication field is used to indicate one of the first uplink carriers or one of the second uplink carriers.
  • the correspondence between the state of the first indication field and the indicated uplink carrier may be set in advance, or the correspondence relationship may be configured in advance by the network device and sent to the terminal device.
  • the first indication field may include two parts, a first part is used to indicate a target uplink carrier, and a second part is used to indicate one BWP in the target uplink carrier.
  • the first portion of the first indication field may be set to include 1 bit, the second portion includes 1 bit, the first portion is a high bit, and the second portion is a low bit, such that the state of the first indication field and the indication
  • Table 2a The correspondence between the contents can be as shown in Table 2a.
  • Table 2a is only one possible exemplary representation.
  • the low bit in the first indication field may be used to indicate the target uplink carrier, and the high bit is used to indicate the target.
  • One BWP in the upstream carrier may be used to indicate the target uplink carrier.
  • the first indication field does not distinguish between a portion for indicating a target uplink carrier and a portion for indicating a BWP portion of the target uplink carrier.
  • the first indication field may be set to include 2 bits, and the correspondence between the status of the first indication field and the indicated content may be as shown in Table 2b.
  • Table 2b is only one possible exemplary representation, and in other examples, the above correspondence may be flexibly set.
  • the number of BWPs included in the first uplink carrier or the second uplink carrier is not limited to two in the embodiment, or may be three or four, or more, and is in the first uplink carrier.
  • the number of BWPs included may be different from the number of BWPs included in the second uplink carrier.
  • the number of BWPs in the first uplink carrier is four, and the number of BWPs in the second uplink carrier is one.
  • the number of bits of the first indication field is not limited to 2 bits, and may be 3 bits or more.
  • the DCI includes a first indication field, where the first indication field is used to indicate the target uplink carrier, and a fourth indication field, used to indicate the target BWP in the target uplink carrier.
  • the first indicator domain and the fourth indicator domain may be two independent indicator domains.
  • the first indication field may be set to include 1 bit
  • the fourth indication field includes 1 bit.
  • the correspondence between the state of the first indication field and the indicated content may be as shown in Table 2c
  • the fourth indication is The correspondence between the state of the domain and the indicated content can be as shown in Table 2d.
  • the terminal device supports carrier aggregation, that is, the terminal device has at least two serving cells, and the first uplink carrier and the second uplink carrier belong to one of the at least two serving cells.
  • the terminal device has two serving cells, a serving cell a and a serving cell b, and the serving cell a includes an uplink carrier a1 and an uplink carrier a2, and the serving cell b includes an uplink carrier b1 and an uplink carrier b2.
  • the uplink carrier a1 is the first uplink carrier
  • the uplink carrier a2 is the second uplink carrier, which may of course be reversed
  • the uplink carrier b1 is the first uplink carrier
  • the uplink is Carrier b2 is the second uplink carrier, which of course can also be reversed.
  • a1, a2, b1, and b2 are only used to distinguish four different uplink carriers, and do not limit the numbering method of the uplink carrier.
  • the four uplink carriers may also be numbered as uplink carrier 0, uplink carrier 1, and uplink.
  • Carrier 2 and uplink carrier 3 of course, other numbering methods are also possible.
  • a, b is only used to distinguish two different serving cells, and does not limit the numbering method of the serving cell.
  • the two serving cells may also be numbered as serving cell 0, serving cell 1, and of course other numbers may be used. the way.
  • the DCI needs to indicate one of the at least two serving cells, so that the terminal device can send an uplink signal to the network device according to an uplink carrier of one serving cell indicated by the DCI.
  • the DCI includes a first indication field, where the first indication field is used to indicate one of the at least two serving cells.
  • the correspondence between the state of the first indication field and the indicated uplink carrier may be set in advance, or the correspondence relationship may be configured in advance by the network device and sent to the terminal device.
  • the first indication domain may include two parts, a first part for indicating a target serving cell in two serving cells, and a second part for a target uplink carrier in the target serving cell.
  • the first portion of the first indication field may be set to include 1 bit, the second portion includes 1 bit, the first portion is a high bit, and the second portion is a low bit, such that the state of the first indication field and the indication
  • Table 3a The correspondence between the contents can be as shown in Table 3a.
  • Table 3a is only one possible exemplary representation.
  • the low bit in the first indication field may be used to indicate the target serving cell, and the high bit is used to indicate the target.
  • the target uplink carrier in the serving cell may be used to indicate the target serving cell.
  • the first indication field does not distinguish between a portion for indicating a target serving cell and a portion for indicating one of the target serving cells.
  • the first indication field may be set to include 2 bits, and the correspondence between the status of the first indication field and the indicated content may be as shown in Table 3b.
  • Table 3b is only one possible exemplary representation, and in other examples, the above correspondence may be flexibly set.
  • the number of uplink carriers included in the serving cell a or the serving cell b is not limited to two in the embodiment, but may be three or four, or more, and is included in the serving cell a.
  • the number of uplink carriers and the number of uplink carriers included in the serving cell b may be different.
  • the number of uplink carriers in the serving cell a is four, and the number of uplink carriers in the serving cell b is two.
  • the number of bits of the first indication field is not limited to 2 bits, and may be 3 bits or more.
  • the DCI includes a first indication field, where the first indicator field is used to indicate the target serving cell, and a fourth indicator field, where the fourth indicator field is used to indicate the target uplink carrier in the target serving cell.
  • the first indicator field and the third indicator field may be two independent indicator fields. Based on the above example, the first indication field may be set to include 1 bit, and the third indication field includes 1 bit.
  • the correspondence between the status of the first indication field and the indicated content may be as shown in Table 3c, and the third indication The correspondence between the state of the domain and the indicated content can be as shown in Table 3d.
  • the DCI may further include a second indication field, where the second indication field is used to indicate that the terminal device sends the frequency resource of the uplink signal to the network device on the first uplink carrier or the second uplink carrier.
  • the third bit number is equal to the fourth bit number, and the third bit number is the number of bits of the second indication field when the DCI indicates that the terminal device sends an uplink signal to the network device on the first uplink carrier.
  • the fourth bit number is the number of bits of the second indication field when the DCI indicates that the terminal device sends an uplink signal to the network device on the second uplink carrier.
  • the number of the second indication field (that is, the third bit number or the fourth bit number) may be determined by the network device in advance, and the specific determination manner may be multiple.
  • the number of bits in the second indication field may be It is determined by the combination of the configuration information of the first uplink carrier and the configuration information of the second uplink carrier.
  • the configuration information of the first uplink carrier includes the number of resource blocks included in the bandwidth of the first uplink carrier
  • the configuration information of the second uplink carrier includes the number of resource blocks included in the bandwidth of the second uplink resource.
  • the first possible implementation manner is to determine that the number of bits of the second indication field is determined by the maximum number of resource blocks included in the bandwidth of the first uplink carrier and the number of resource blocks included in the bandwidth of the second uplink carrier. . For example, when the second indication field indicates a resource block in the bandwidth of the first uplink carrier, X1 bit is needed, and when the second indication field indicates a resource block in the bandwidth of the second uplink carrier, X2 bit is required, and X1 is greater than X2, then It may be determined that the number of bits of the second indication field is X1 bits.
  • the DCI when used to instruct the terminal device to send an uplink signal to the network device on the second uplink carrier, the first X2 bits in the second indication field are used to indicate the frequency domain resource location, and the following X1-X2 bits. To fill the bits.
  • a second possible implementation manner is to determine that the number of bits of the second indication field is determined by a minimum of the number of resource blocks included in the bandwidth of the first uplink carrier and the number of resource blocks included in the bandwidth of the second uplink carrier. .
  • the number of bits of the second indication field may be determined to be X2 bits, so that the network device can only limit the number of resource blocks corresponding to the X2 bit in the bandwidth of the first uplink carrier, or increase the network device in the first uplink carrier bandwidth.
  • the frequency domain resource granularity of the scheduling is performed by a minimum of the number of resource blocks included in the bandwidth of the first uplink carrier and the number of resource blocks included in the bandwidth of the second uplink carrier.
  • the bandwidth of the uplink carrier involved in the above content may specifically refer to an initial uplink bandwidth (initial UL BWP) configured by the network device, or may be a default uplink bandwidth (default UL BWP).
  • first indication domain, the second indicator domain, and the third indicator domain are not limited to the first bit number and the second bit applied in the embodiment of the present application. In the case where the numbers are equal, it is also applicable to the case where the first bit number and the second bit number are not equal.
  • step 300a the network device sends a first message to the terminal device, where the first message is used to indicate that the first indication domain is included in the DCI.
  • Step 300b The terminal device receives the first message from the network device.
  • the first message may be a system message or a broadcast message.
  • the uplink supplementary carrier is configured in the first message
  • the first message indicates that the first indication domain is included in the DCI.
  • the uplink supplementary carrier is not configured in the first message
  • the first message may indicate that the first indication domain is included in the DCI or does not include the first indication domain.
  • the first message may also be a higher layer signaling sent by the network device to a specific terminal device.
  • the first message indicates that the first indication domain is included in the DCI.
  • the first message may indicate that the first indication domain is included in the DCI or does not include the first indication domain; in this case, A message may indicate a fixed uplink carrier, or may be a message that the network device sends to the terminal device to indicate a fixed uplink carrier, where the fixed uplink carrier may be the first uplink carrier or the second uplink carrier.
  • the DCI sent by the network device to the terminal device for scheduling uplink data transmission can only schedule the terminal device to send uplink data on the first uplink carrier.
  • the first indication domain may or may not be included in the DCI.
  • the state of the first indicator field may be a fixed state, for example, always 0 or always 1, and may also be a random state, for example, 0 or 1 randomly.
  • the device may not determine the uplink carrier according to the first indication field in the DCI, but directly determine that the first uplink carrier is used to send the uplink data.
  • the number of bits of the DCI may be predetermined by the network device. Specifically, after the network device is configured with the first uplink carrier and the second uplink carrier, the number of bits of the DCI may be determined according to the bandwidth or subcarrier spacing of the first uplink carrier and the second uplink carrier or other configuration parameters, and the subsequent network device The DCI can be transmitted to the terminal device according to the determined number of bits of the DCI.
  • the DCI in the present application may be a fallback DCI, and the fallback DCI may be understood as a default DCI or a DCI in a default state, or as a DCI detected by a terminal device in a common search space of a cell, and does not limit the DCI. name.
  • the terminal device accessing the network device can only detect the rollback DCI and send the uplink signal to the network device according to the detected backoff DCI, if the terminal device that meets the specific conditions (for example, does not receive the configuration information sent by the network device through the RRC signaling) .
  • the fallback DCI may refer to a fallback DCI dedicated to uplink scheduling, or may be a fallback DCI of a downlink design and an uplink scheduling unified design.
  • the network device if the network device is configured with the uplink supplementary carrier, the network device sends the fallback DCI including the first indication domain (and the third indicator domain or the fourth indicator domain); if the network device does not configure the uplink supplementary carrier
  • the first indication domain (and the third indicator domain or the fourth indicator domain) may be included in the rollback DCI sent by the network device, or may not include the first indicator domain (and the third indicator domain or Fourth indicator field).
  • the number of bits of the back-off DCI sent by the network device to the terminal device remains unchanged, so that the terminal device can be configured or reconfigured in the RRC process.
  • the DCI is received from the network device, and the DCI can be blindly detected according to the number of bits of the DCI.
  • the terminal device determines the number of bits of the back-off DCI in the process of RRC configuration or re-allocation to perform blind detection on the back-off DCI.
  • the DCI in this application may also be a non-return DCI, that is, a DCI for a specific terminal device. If the network device configures the terminal device to support the dynamic scheduling of the uplink carrier, the DCI sent by the network device to the terminal device includes the first indication domain (and the third indicator domain or the fourth indicator domain). If the network device is not configured to support the dynamic scheduling of the uplink carrier, the DCI sent by the network device to the terminal device may include the first indication domain (and the third indicator domain or the fourth indicator domain), or The first indication field (and the third indication field or the fourth indication field described above) may not be included.
  • the first bit number and the second bit number may be equal or not equal; the second indicator field may or may not be equal.
  • the number of bits of the second indication field of the DCI is determined by the configuration information of the first uplink carrier; when the network device configures the second uplink carrier to be the PUSCH carrier, the DCI The number of bits of the second indication field is determined by the configuration information of the second uplink carrier.
  • the search space of the first DCI and the search space of the second DCI may be the same, or may be different, where the first DCI is used to indicate that the terminal device is on the first uplink carrier.
  • the network device sends a DCI of the uplink signal, where the second DCI is used to instruct the terminal device to send an uplink signal to the network device on the second uplink carrier.
  • the first DCI or the second DCI is sent to the terminal device in the first search space; or the network device may Transmitting, by the first search space, the first DCI to the terminal device, and transmitting the second DCI to the terminal device on the second search space; or the network device may send the first DCI to the terminal device in the second search space, where A second DCI is sent to the terminal device in a search space.
  • the search space of the first DCI is the same as the search space of the second DCI.
  • the search space of the first DCI and the search space of the second DCI may be the same or different.
  • the present application further provides a terminal device and a network device, and the specific implementation of the terminal device and the network device may refer to the foregoing method flow.
  • the present application provides a communication device, which may be a terminal device, for implementing a corresponding process or step performed by the terminal device in the method embodiment shown in FIG.
  • the communication device 400 can include: a transceiver module 401, a processing module 402, specifically:
  • the transceiver module 401 is configured to receive a DCI from the network device on the first downlink carrier, where the DCI is used to indicate that the terminal device sends an uplink signal to the network device on the first uplink carrier or the second uplink carrier.
  • the number of bits is equal to the number of second bits, where the number of bits is the number of bits of the DCI when the terminal device indicates that the terminal device sends an uplink signal to the network device on the first uplink carrier.
  • the second bit number is the number of bits of the DCI when the DCI indicates that the terminal device sends an uplink signal to the network device on the second uplink carrier;
  • the processing module 402 is configured to determine the first uplink carrier or the second uplink carrier according to the DCI.
  • the DCI includes a first indication field, where the first indication field is used to indicate the first uplink carrier or the second uplink carrier.
  • the transceiver module 401 is further configured to receive a first message from the network device, where the first message is used to indicate that the DCI includes a first indication domain, where the first indication domain is used. Instructing the first uplink carrier or the second uplink carrier;
  • the processing module 402 is specifically configured to determine the first uplink carrier or the second uplink carrier according to the first indication domain.
  • the first uplink carrier includes at least one uplink bandwidth portion BWP
  • the second uplink carrier includes at least one uplink BWP.
  • the first indication field is used to indicate one uplink BWP of the first uplink carrier or one uplink BWP of the second uplink carrier.
  • the terminal device has at least two serving cells, and the first uplink carrier and the second uplink carrier belong to one of the at least two serving cells;
  • the first indication field is used to indicate one of the at least two serving cells.
  • the terminal device has at least two serving cells, and the first uplink carrier and the second uplink carrier belong to one of the at least two serving cells, in the DCI Also including a third indicator field;
  • the third indication field indicates a first serving cell of the at least two serving cells
  • the first indication field indicates one uplink carrier in the first serving cell.
  • the DCI includes a second indication field, where the second indication field is used to indicate that the terminal device is to the network on the first uplink carrier or the second uplink carrier.
  • the device sends a frequency resource of the uplink signal; the third bit number is equal to the fourth bit number, where the third bit number is that the DCI indicates that the terminal device sends an uplink signal to the network device on the first uplink carrier.
  • the number of bits of the second indication field, where the fourth bit number is the number of bits of the second indication field when the DCI indicates that the terminal device sends an uplink signal to the network device on the second uplink carrier.
  • the first message is a broadcast message or a system message
  • the DCI is a fallback DCI
  • the first downlink carrier, the first uplink carrier, and the second uplink carrier belong to the same cell.
  • the present application further provides a communication device, which may be a network device, for implementing a corresponding process or step performed by the network device in the method embodiment shown in FIG.
  • the communication device 500 can include: a transceiver module 501, a processing module 502, specifically:
  • the processing module 502 is configured to determine a DCI
  • the transceiver module 501 is configured to send the DCI to the terminal device on the first downlink carrier, where the DCI is used to instruct the terminal device to send an uplink signal to the network device on the first uplink carrier or the second uplink carrier.
  • the first bit number is equal to the second bit number, the first bit number is the number of bits of the DCI when the DCI indicates that the terminal device sends an uplink signal to the network device on the first uplink carrier.
  • the second bit number is the number of bits of the DCI when the DCI indicates that the terminal device sends an uplink signal to the network device on the second uplink carrier.
  • the DCI includes a first indication field, where the first indication field is used to indicate the first uplink carrier or the second uplink carrier.
  • the transceiver module 501 is further configured to send a first message to the terminal device, where the first message is used to indicate that the first indication domain is included in the DCI, where the first indication is The field is used to indicate the first uplink carrier or the second uplink carrier.
  • the first uplink carrier includes at least one uplink bandwidth portion BWP
  • the second uplink carrier includes at least one uplink BWP.
  • the first indication field is used to indicate one uplink BWP of the first uplink carrier or one uplink BWP of the second uplink carrier.
  • the terminal device has at least two serving cells, and the first uplink carrier and the second uplink carrier belong to one of the at least two serving cells;
  • the first indication field is used to indicate one of the at least two serving cells.
  • the terminal device has at least two serving cells, and the first uplink carrier and the second uplink carrier belong to one of the at least two serving cells, in the DCI Also including a third indicator field;
  • the third indication field indicates a first serving cell of the at least two serving cells
  • the first indication field indicates one uplink carrier in the first serving cell.
  • the DCI includes a second indication field, where the second indication field is used to indicate that the terminal device is to the network on the first uplink carrier or the second uplink carrier.
  • the device sends a frequency resource of the uplink signal; the third bit number is equal to the fourth bit number, where the third bit number is that the DCI indicates that the terminal device sends an uplink signal to the network device on the first uplink carrier.
  • the number of bits of the second indication field, where the fourth bit number is the number of bits of the second indication field when the DCI indicates that the terminal device sends an uplink signal to the network device on the second uplink carrier.
  • the first message is a broadcast message or a system message
  • the DCI is a fallback DCI
  • the first downlink carrier, the first uplink carrier, and the second uplink carrier belong to the same cell.
  • the division of the module in the embodiment of the present application is schematic, and is only a logical function division, and the actual implementation may have another division manner.
  • the functional modules in the embodiments of the present application may be integrated into one processing module, or each module may exist physically separately, or two or more modules may be integrated into one module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules.
  • the integrated modules if implemented in the form of software functional modules and sold or used as separate products, may be stored in a computer readable storage medium.
  • a computer readable storage medium A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .
  • the present application further provides a communication device, which may be a terminal device, for implementing a corresponding process or step performed by the terminal device in the method embodiment shown in FIG.
  • the communication device has the function of the communication device 400 as shown in FIG. Referring to FIG. 6, the communication device 600 includes: a communication module 601, a processor 602;
  • the communication module 601 is configured to perform communication interaction with other devices, for example, receiving downlink control information DCI from the network device on the first downlink carrier, where the DCI is used to indicate that the terminal device is in the first uplink carrier or the first Sending an uplink signal to the network device on the second uplink carrier; the first number of bits is equal to the second number of bits, where the first number of bits indicates that the DCI indicates that the terminal device is on the first uplink carrier
  • the number of bits of the DCI when the network device sends an uplink signal where the second bit number is the bit of the DCI when the DCI indicates that the terminal device sends an uplink signal to the network device on the second uplink carrier. number.
  • the communication module 601 can be an RF circuit, a Wi-Fi module, a communication interface, a Bluetooth module, or the like.
  • the processor 602 is configured to implement the functions of the processing module in the third aspect, including:
  • the communication device 600 may further include: a memory 604, configured to store a program or the like.
  • the program can include program code, the program code including instructions.
  • Memory 604 may include RAM and may also include non-volatile memory, such as at least one disk storage.
  • the processor 602 executes the application stored in the memory 604 to implement the above functions.
  • a communication connection is made between the communication module 601, the processor 602, and the memory 604.
  • the communication module 601, the processor 602, and the memory 604 may be connected to each other through a bus 603; the bus 603 may be a PCI bus or an EISA bus or the like.
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 6, but it does not mean that there is only one bus or one type of bus.
  • the present application further provides a communication device, which may be a network device, for implementing a corresponding process or step performed by the network device in the method embodiment shown in FIG.
  • the communication device has the function of the communication device 500 as shown in FIG.
  • the communication device 700 includes: a communication module 701, a processor 702;
  • the processor 702 is configured to implement the functions of the processing module in the fourth aspect, including: determining a DCI;
  • the communication module 701 is configured to perform communication interaction with other devices, for example, sending the DCI to a terminal device on a first downlink carrier, where the DCI is used to indicate that the terminal device is in a first uplink carrier or a second Sending an uplink signal to the network device on the uplink carrier; the first number of bits is equal to the second number of bits, where the first bit number is that the DCI indicates that the terminal device is on the first uplink carrier to the network The number of bits of the DCI when the device sends an uplink signal, where the number of bits of the DCI is that the DCI indicates that the terminal device sends an uplink signal to the network device on the second uplink carrier. .
  • the communication module 701 can be an RF circuit, a Wi-Fi module, a communication interface, a Bluetooth module, or the like.
  • the communication device 700 may further include: a memory 704, configured to store a program or the like.
  • the program can include program code, the program code including instructions.
  • Memory 704 may include RAM and may also include non-volatile memory, such as at least one disk storage.
  • the processor 702 executes the application stored in the memory 704 to implement the above functions.
  • a communication connection is made between the communication module 701, the processor 702, and the memory 704.
  • the communication module 701, the processor 702, and the memory 704 may be connected to each other through a bus 703; the bus 703 may be a PCI bus or an EISA bus or the like.
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 7, but it does not mean that there is only one bus or one type of bus.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present invention are generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)) or the like.
  • a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape
  • an optical medium eg, a DVD
  • a semiconductor medium such as a solid state disk (SSD)
  • Embodiments of the invention are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine such that instructions are executed by a processor of a computer or other programmable data processing device Means for implementing the functions specified in one or more flows of the flowchart or in a block or blocks of the flowchart.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

一种通信方法及装置。该方法包括：终端设备在第一下行载波上从网络设备接收下行控制信息DCI，并根据DCI确定第一上行载波或第二上行载波，其中，DCI用于指示终端设备在第一上行载波或第二上行载波上向网络设备发送上行信号；第一比特数与第二比特数相等，第一比特数为DCI指示终端设备在第一上行载波上向网络设备发送上行信号时DCI的比特数，第二比特数为DCI指示终端设备在第二上行载波上向网络设备发送上行信号时DCI的比特数。本申请中，由于第一比特数和第二比特数相等，因此终端设备在搜索空间上可按照一个DCI比特数进行盲检测，从而提高了终端设备盲检测DCI的效率。

Description

一种通信方法及装置
本申请要求在2017年11月2日提交中华人民共和国知识产权局、申请号为201711066692.X、发明名称为“一种通信方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域，特别涉及一种通信方法及装置。
背景技术
在无线通信系统中，按照发送节点和接收节点种类的不同，可以将通信分为不同的类型。通常，将网络设备向终端设备发送信息称为下行通信，将终端设备向网络设备发送信息称为上行通信。在长期演进(long term evolution，LTE)/长期演进高级(long term evolution advanced，LTE-A)通信系统中，按照双工模式的不同主要可以分为频分双工(frequency division duplex，FDD)模式和时分双工(time division duplex，TDD)模式。
对于工作在TDD模式下的无线通信系统，下行载波和上行载波为同一载波频率的载波。而在第五代(the 5th generation，5G)移动通信系统的新空口(new RAT，NR)技术中，可以应用上下行解耦技术，即除了可以使用TDD载波进行上、下行通信外，还可以使用一个额外的上行载波进行上行通信，该额外的上行载波通常被称为上行增补(supplementary uplink，SUL)载波，即NR的终端设备可以同时拥有两个上行载波进行上行通信。
现有技术中，网络设备会在一些预先确定的下行资源上向终端设备发送下行控制信息(downlink control infornation，DCI)，相应地，终端设备在这些下行资源上通过盲检测的方式检测并获取DCI，即终端设备会在多个可能的承载DCI的控制资源上尝试检测DCI。而针对终端设备能够被调度在两个或多个上行载波上发送PUSCH的情况，具体的技术方案仍然需要深入的探索研究。
发明内容
本申请提供一种通信方法及装置，用于提高能够被调度在两个或多个上行载波上的终端设备盲检测DCI的效率。
第一方面，本申请提供一种通信方法，包括：
终端设备在第一下行载波上从网络设备接收下行控制信息DCI，所述DCI用于指示所述终端设备在第一上行载波或第二上行载波上向所述网络设备发送上行信号；第一比特数与第二比特数相等，所述第一比特数为所述DCI指示所述终端设备在所述第一上行载波上向所述网络设备发送上行信号时所述DCI的比特数，所述第二比特数为所述DCI指示所述终端设备在所述第二上行载波上向所述网络设备发送上行信号时所述DCI的比特数；
所述终端设备根据所述DCI确定所述第一上行载波或所述第二上行载波。
如此，由于第一比特数和第二比特数相等，因此终端设备可按照第一比特数(或第二比特数)在搜索空间上盲检测DCI，即在搜索空间上按照一个DCI比特数进行盲检测即可，从而提高了终端设备盲检测DCI的效率，有效避免了现有技术中终端设备可能需要分别按 照多个不同的DCI比特数来盲检测DCI的问题。
在一种可能的设计中，所述DCI中包括第一指示域，所述第一指示域用于指示所述第一上行载波或所述第二上行载波。
在一种可能的设计中，所述终端设备根据所述DCI确定所述第一上行载波或所述第二上行载波，包括：
所述终端设备从所述网络设备接收第一消息，第一消息用于指示所述DCI中包括第一指示域，所述第一指示域用于指示所述第一上行载波或所述第二上行载波；
所述终端设备根据所述第一指示域确定所述第一上行载波或所述第二上行载波。
在一种可能的设计中，所述第一上行载波中包括至少一个上行带宽部分BWP，所述第二上行载波中包括至少一个上行BWP；
所述第一指示域用于指示所述第一上行载波中的一个上行BWP或所述第二上行载波中的一个上行BWP。
在一种可能的设计中，所述终端设备拥有至少两个服务小区，所述第一上行载波和所述第二上行载波属于所述至少两个服务小区中的一个服务小区；
所述第一指示域用于指示所述至少两个服务小区中的一个服务小区中的一个上行载波。
在一种可能的设计中，所述终端设备拥有至少两个服务小区，所述第一上行载波和所述第二上行载波属于所述至少两个服务小区中的一个服务小区，所述DCI中还包括第三指示域；
所述第三指示域指示所述至少两个服务小区中的第一服务小区；
所述第一指示域指示所述第一服务小区中的一个上行载波。
在一种可能的设计中，所述DCI中包括第二指示域，所述第二指示域用于指示所述终端设备在所述第一上行载波或所述第二上行载波上向所述网络设备发送上行信号的频率资源；第三比特数与第四比特数相等，所述第三比特数为所述DCI指示所述终端设备在第一上行载波上向所述网络设备发送上行信号时所述第二指示域的比特数，所述第四比特数为所述DCI指示所述终端设备在第二上行载波上向所述网络设备发送上行信号时所述第二指示域的比特数。
在一种可能的设计中，所述第一消息为广播消息或系统消息，所述DCI为回退DCI。
在一种可能的设计中，所述第一下行载波、所述第一上行载波和所述第二上行载波属于同一个小区。
第二方面，本申请提供一种通信方法，所述方法包括：
网络设备确定DCI；
所述网络设备在第一下行载波上向终端设备发送所述DCI，所述DCI用于指示所述终端设备在第一上行载波或第二上行载波上向所述网络设备发送上行信号；第一比特数与第二比特数相等，所述第一比特数为所述DCI指示所述终端设备在所述第一上行载波上向所述网络设备发送上行信号时所述DCI的比特数，所述第二比特数为所述DCI指示所述终端设备在所述第二上行载波上向所述网络设备发送上行信号时所述DCI的比特数。
如此，由于第一比特数和第二比特数相等，因此网络设备向终端设备发送DCI后，终端设备可按照第一比特数(或第二比特数)在搜索空间上盲检测DCI，即在搜索空间上按照一个DCI比特数进行盲检测即可，从而提高了终端设备盲检测DCI的效率，有效避免了 现有技术中终端设备可能需要分别按照多个不同的DCI比特数来盲检测DCI的问题。
在一种可能的设计中，所述DCI中包括第一指示域，所述第一指示域用于指示所述第一上行载波或所述第二上行载波。
在一种可能的设计中，所述方法还包括：
所述网络设备向所述终端设备发送第一消息，所述第一消息用于指示所述DCI中包括第一指示域，所述第一指示域用于指示所述第一上行载波或所述第二上行载波。
在一种可能的设计中，所述第一上行载波中包括至少一个上行带宽部分BWP，所述第二上行载波中包括至少一个上行BWP；
所述第一指示域用于指示所述第一上行载波中的一个上行BWP或所述第二上行载波中的一个上行BWP。
在一种可能的设计中，所述终端设备拥有至少两个服务小区，所述第一上行载波和所述第二上行载波属于所述至少两个服务小区中的一个服务小区；
所述第一指示域用于指示所述至少两个服务小区中的一个服务小区中的一个上行载波。
在一种可能的设计中，所述终端设备拥有至少两个服务小区，所述第一上行载波和所述第二上行载波属于所述至少两个服务小区中的一个服务小区，所述DCI中还包括第三指示域；
所述第三指示域指示所述至少两个服务小区中的第一服务小区；
所述第一指示域指示所述第一服务小区中的一个上行载波。
在一种可能的设计中，所述DCI中包括第二指示域，所述第二指示域用于指示所述终端设备在所述第一上行载波或所述第二上行载波上向所述网络设备发送上行信号的频率资源；第三比特数与第四比特数相等，所述第三比特数为所述DCI指示所述终端设备在第一上行载波上向所述网络设备发送上行信号时所述第二指示域的比特数，所述第四比特数为所述DCI指示所述终端设备在第二上行载波上向所述网络设备发送上行信号时所述第二指示域的比特数。
在一种可能的设计中，所述第一消息为广播消息或系统消息，所述DCI为回退DCI。
在一种可能的设计中，所述第一下行载波、所述第一上行载波和所述第二上行载波属于同一个小区。
第三方面，本申请提供一种终端设备，所述终端设备包括：
收发模块，用于在第一下行载波上从网络设备接收DCI，所述DCI用于指示所述终端设备在第一上行载波或第二上行载波上向所述网络设备发送上行信号；第一比特数与第二比特数相等，所述第一比特数为所述DCI指示所述终端设备在所述第一上行载波上向所述网络设备发送上行信号时所述DCI的比特数，所述第二比特数为所述DCI指示所述终端设备在所述第二上行载波上向所述网络设备发送上行信号时所述DCI的比特数；
处理模块，用于根据所述DCI确定所述第一上行载波或所述第二上行载波。
在一种可能的设计中，所述DCI中包括第一指示域，所述第一指示域用于指示所述第一上行载波或所述第二上行载波。
在一种可能的设计中，所述收发模块还用于，从所述网络设备接收第一消息，第一消息用于指示所述DCI中包括第一指示域，所述第一指示域用于指示所述第一上行载波或所述第二上行载波；
所述处理模块具体用于，根据所述第一指示域确定所述第一上行载波或所述第二上行载波。
在一种可能的设计中，所述第一上行载波中包括至少一个上行带宽部分BWP，所述第二上行载波中包括至少一个上行BWP；
所述第一指示域用于指示所述第一上行载波中的一个上行BWP或所述第二上行载波中的一个上行BWP。
在一种可能的设计中，所述终端设备拥有至少两个服务小区，所述第一上行载波和所述第二上行载波属于所述至少两个服务小区中的一个服务小区；
所述第一指示域用于指示所述至少两个服务小区中的一个服务小区中的一个上行载波。
在一种可能的设计中，所述终端设备拥有至少两个服务小区，所述第一上行载波和所述第二上行载波属于所述至少两个服务小区中的一个服务小区，所述DCI中还包括第三指示域；
所述第三指示域指示所述至少两个服务小区中的第一服务小区；
所述第一指示域指示所述第一服务小区中的一个上行载波。
在一种可能的设计中，所述DCI中包括第二指示域，所述第二指示域用于指示所述终端设备在所述第一上行载波或所述第二上行载波上向所述网络设备发送上行信号的频率资源；第三比特数与第四比特数相等，所述第三比特数为所述DCI指示所述终端设备在第一上行载波上向所述网络设备发送上行信号时所述第二指示域的比特数，所述第四比特数为所述DCI指示所述终端设备在第二上行载波上向所述网络设备发送上行信号时所述第二指示域的比特数。
在一种可能的设计中，所述第一消息为广播消息或系统消息，所述DCI为回退DCI。
在一种可能的设计中，所述第一下行载波、所述第一上行载波和所述第二上行载波属于同一个小区。
第四方面，本申请提供一种网络设备，所述网络设备包括：
处理模块，用于确定DCI；
收发模块，用于在第一下行载波上向终端设备发送所述DCI，所述DCI用于指示所述终端设备在第一上行载波或第二上行载波上向所述网络设备发送上行信号；第一比特数与第二比特数相等，所述第一比特数为所述DCI指示所述终端设备在所述第一上行载波上向所述网络设备发送上行信号时所述DCI的比特数，所述第二比特数为所述DCI指示所述终端设备在所述第二上行载波上向所述网络设备发送上行信号时所述DCI的比特数。
在一种可能的设计中，所述DCI中包括第一指示域，所述第一指示域用于指示所述第一上行载波或所述第二上行载波。
在一种可能的设计中，所述收发模块还用于，向所述终端设备发送第一消息，所述第一消息用于指示所述DCI中包括第一指示域，所述第一指示域用于指示所述第一上行载波或所述第二上行载波。
在一种可能的设计中，所述第一上行载波中包括至少一个上行带宽部分BWP，所述第二上行载波中包括至少一个上行BWP；
所述第一指示域用于指示所述第一上行载波中的一个上行BWP或所述第二上行载波中的一个上行BWP。
在一种可能的设计中，所述终端设备拥有至少两个服务小区，所述第一上行载波和所述第二上行载波属于所述至少两个服务小区中的一个服务小区；
所述第一指示域用于指示所述至少两个服务小区中的一个服务小区中的一个上行载波。
在一种可能的设计中，所述终端设备拥有至少两个服务小区，所述第一上行载波和所述第二上行载波属于所述至少两个服务小区中的一个服务小区，所述DCI中还包括第三指示域；
所述第三指示域指示所述至少两个服务小区中的第一服务小区；
所述第一指示域指示所述第一服务小区中的一个上行载波。
在一种可能的设计中，所述DCI中包括第二指示域，所述第二指示域用于指示所述终端设备在所述第一上行载波或所述第二上行载波上向所述网络设备发送上行信号的频率资源；第三比特数与第四比特数相等，所述第三比特数为所述DCI指示所述终端设备在第一上行载波上向所述网络设备发送上行信号时所述第二指示域的比特数，所述第四比特数为所述DCI指示所述终端设备在第二上行载波上向所述网络设备发送上行信号时所述第二指示域的比特数。
在一种可能的设计中，所述第一消息为广播消息或系统消息，所述DCI为回退DCI。
在一种可能的设计中，所述第一下行载波、所述第一上行载波和所述第二上行载波属于同一个小区。
第五方面，本申请提供一种通信装置，该通信装置可以为终端设备，该通信装置具有实现上述第一方面方法示例中的功能；该通信装置包括：通信模块、处理器；
所述通信模块，用于与其他设备进行通信交互，例如，在第一下行载波上从网络设备接收下行控制信息DCI，所述DCI用于指示所述终端设备在第一上行载波或第二上行载波上向所述网络设备发送上行信号；第一比特数与第二比特数相等，所述第一比特数为所述DCI指示所述终端设备在所述第一上行载波上向所述网络设备发送上行信号时所述DCI的比特数，所述第二比特数为所述DCI指示所述终端设备在所述第二上行载波上向所述网络设备发送上行信号时所述DCI的比特数。
所述通信模块可以为RF电路、Wi-Fi模块、通信接口、蓝牙模块等。
所述处理器，用于实现第三方面中处理模块的功能，包括：
根据所述DCI确定所述第一上行载波或所述第二上行载波。
可选地，通信装置还可以包括：所述存储器，用于存放程序等。具体地，程序可以包括程序代码，该程序代码包括指令。存储器可能包含随机存取存储器(random access memory，RAM)，也可能还包括非易失性存储器(non-volatile memory)，例如至少一个磁盘存储器。处理器执行存储器所存放的应用程序，实现上述功能。
一种可能的方式中，通信模块、处理器和存储器可以通过所述总线相互连接；总线可以是外设部件互连标准(peripheral component interconnect，PCI)总线或扩展工业标准结构(extended industry standard architecture，EISA)总线等。所述总线可以分为地址总线、数据总线、控制总线等。
第六方面，本申请提供一种通信装置，该通信装置可以为网络设备，该通信装置具有实现上述第二方面方法示例中的功能；该通信装置包括：通信模块、处理器；
所述处理器，用于实现第四方面中处理模块的功能，包括：确定DCI；
所述通信模块，用于与其他设备进行通信交互，例如，在第一下行载波上向终端设备发送所述DCI，所述DCI用于指示所述终端设备在第一上行载波或第二上行载波上向所述网络设备发送上行信号；第一比特数与第二比特数相等，所述第一比特数为所述DCI指示所述终端设备在所述第一上行载波上向所述网络设备发送上行信号时所述DCI的比特数，所述第二比特数为所述DCI指示所述终端设备在所述第二上行载波上向所述网络设备发送上行信号时所述DCI的比特数。
所述通信模块可以为RF电路、Wi-Fi模块、通信接口、蓝牙模块等。
可选地，通信装置还可以包括：所述存储器，用于存放程序等。具体地，程序可以包括程序代码，该程序代码包括指令。存储器可能包含RAM，也可能还包括非易失性存储器，例如至少一个磁盘存储器。处理器执行存储器所存放的应用程序，实现上述功能。
一种可能的方式中，通信模块、处理器和存储器可以通过所述总线相互连接；总线可以是PCI总线或EISA总线等。所述总线可以分为地址总线、数据总线、控制总线等。
本申请还提供了一种通信系统，该系统包括上述任意一种设计提供的终端设备，还可以包括本申请提供的方案中与所述终端设备进行交互的网络设备。
本申请还提供了一种计算机存储介质，该存储介质中存储软件程序，该软件程序在被一个或多个处理器读取并执行时可实现上述各方面或各种可能的设计提供的通信方法。
本申请还提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述各方面或各种可能的设计所述的通信方法。
本申请还提供了一种计算机程序，当其在计算机上运行时，使得计算机执行上述各方面或各种可能的设计所述的通信方法。
附图说明
图1为本申请适用的一种系统架构示意图；
图2a为本申请适用的一种可能的场景示意图；
图2b为本申请适用的另一种可能的场景示意图；
图3为本申请提供的一种通信方法对应的流程示意图；
图4为本申请提供的一种通信装置的结构示意图；
图5为本申请还提供的一种通信装置的结构示意图；
图6为本申请还提供的一种通信装置的结构示意图；
图7为本申请还提供的一种通信装置的结构示意图。
具体实施方式
下面结合说明书附图对本申请进行具体说明。
图1为本申请适用的一种系统架构示意图。如图1所示，该系统架构中包括网络设备101、一个或多个终端设备，比如图1所示的终端设备1021、终端设备1022、终端设备1023。网络设备101可通过网络向终端设备1021、终端设备1022、终端设备1023传输下行数据，终端设备1021、终端设备1022、终端设备1023可通过网络向网络设备101传输上行数据。
本申请中，网络设备可以为基站设备(base station，BS)。基站设备也可称为基站，是一种部署在无线接入网用以提供无线通信功能的装置。例如在2G网络中提供基站功能的设备包括基地无线收发站(base transceiver station，BTS)和基站控制器(base station  controller，BSC)，3G网络中提供基站功能的设备包括节点B(NodeB)和无线网络控制器(radio network controller，RNC)，在4G网络中提供基站功能的设备包括演进的节点B(evolved NodeB，eNB)，在5G网络中提供基站功能的设备包括新无线节点B(New Radio NodeB，gNB)，集中单元(Centralized Unit，CU)，分布式单元(Distributed Unit)和新无线控制器。
终端设备是一种具有无线收发功能的设备，可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。所述终端设备可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self driving)中的无线终端设备、远程医疗(remote medical)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备、智慧家庭(smart home)中的无线终端设备等。
本申请中主要以图1所示意的系统架构为例进行介绍，但并不限于此，例如，本申请还可以适用于宏基站和微基站通信的系统架构中，具体不做限定。
上述系统架构适用的通信系统包括但不限于：时分双工-长期演进(time division duplexing-long term evolution，TDD LTE)、频分双工-长期演进(frequency division duplexing-long term evolution，FDD LTE)、长期演进-增强(long term evolution-advanced，LTE-A)，以及未来演进的各种无线通信系统(例如，5G NR系统)。
以5G NR系统为例，终端设备可以使用上行增补载波向网络设备发送上行信号。其中上行增补载波是指仅有上行资源用于当前制式的传输，例如，在5G NR系统中，载波A仅用于NR的上行传输，该载波不用于下行传输或者载波A用于LTE通信系统的下行传输而不用于NR的下行传输，则该载波A为增补上行载波。
一种可能的场景中，参见图2a，设终端设备a1使用频率为F1和F2的载波分别进行下行、上行通信(FDD)，网络设备b1配置了上行增补载波(载波F3)，并为终端设备a配置动态调度上行载波的功能后，终端设备a可以使用载波F1进行下行信号传输，以及使用载波F2或载波F3进行上行信号传输。此时，下行载波F1、上行载波F2和上行载波F3属于同一个小区，或者说，下行载波F1、上行载波F2和上行载波F3属于同一个带宽组合，又或者说，下行载波F1对应上行载波F2和上行载波F3。
另一种可能的场景中，参见图2b，设终端设备a2使用频率为F4的TDD载波分别进行上行、下行通信，网络设备b2配置了上行增补载波(载波F5)，并为终端设备a2配置动态调度上行载波的功能后，终端设备a2可以使用载波F4的下行时隙进行下行信号传输，以及使用载波F4的上行时隙进行上行信号传输或者使用载波F5进行上行信号传输。此时，载波F4和上行载波F5属于同一个小区。
现有技术中，针对终端设备能够被调度在两个或多个上行载波上发送上行信号的情况，以两个上行载波(第一上行载波和第二上行载波)为例，当网络设备调度终端设备在第一上行载波上发送上行信号时，网络设备会向终端设备发送DCI1；当网络设备调度终端设备在第二上行载波上发送上行信号时，网络设备会向终端设备发送DCI2，DCI1和DCI2的比特数可能不同，从而使得终端设备需要分别按照DCI1的比特数和DCI2的比特数来盲检测DCI，即终端设备需要分别按照两个不同的DCI比特数来进行盲检测，导致盲检测 DCI的时间较长、效率较低。
基于此，本申请提供一种通信方法，包括：终端设备在第一下行载波上从网络设备接收下行控制信息DCI，并根据所述DCI确定所述第一上行载波或所述第二上行载波，其中，所述DCI用于指示所述终端设备在第一上行载波或第二上行载波上向所述网络设备发送上行信号；第一比特数与第二比特数相等，所述第一比特数为所述DCI指示所述终端设备在所述第一上行载波上向所述网络设备发送上行信号时所述DCI的比特数，所述第二比特数为所述DCI指示所述终端设备在所述第二上行载波上向所述网络设备发送上行信号时所述DCI的比特数。本申请中，由于第一比特数和第二比特数相等，因此终端设备可按照第一比特数(或第二比特数)在搜索空间上盲检测DCI，即在搜索空间上按照一个DCI比特数进行盲检测即可，从而提高了终端设备盲检测DCI的效率，有效避免了现有技术中终端设备可能需要分别按照多个不同的DCI比特数来盲检测DCI的问题。
需要说明的是：(1)本申请中所涉及的上行载波可以称为上行资源或上行频率或上行，同样地，下行载波可以是指下行资源或下行频率或下行。应理解，载波的技术实质为频率域上的一段频率资源，该频率资源在通信领域可以被称为载波，当然也可以用其他名称进行描述，本申请不对其进行限定。(2)本申请中的通信方法是以终端设备能够被调度在第一上行载波和第二上行载波上的情形为例来描述的，该方法同样适用于终端设备能够被调度在多个上行载波上的情形，当终端设备能够被调度在多个上行载波上时，DCI指示所述终端设备在不同的上行载波上向网络设备发送上行信号时DCI的比特数是相等的。(3)DCI的比特数也可以理解为DCI的大小或长度，该DCI的比特数可以是DCI的有效负荷(payload)的比特数，也可以是DCI的总负荷的比特数，例如，该DCI的总负荷可以包括填充(padding)比特，也可以不包括填充比特。
图3为本申请提供的一种通信方法对应的流程示意图，如图3所示，包括：
步骤301，网络设备确定DCI。
此处，网络设备确定将要调度的上行载波为第一上行载波或第二上行载波，进而根据确定出的第一上行载波或第二上行载波生成DCI。具体来说，若网络设备确定将要调度的上行载波为第一上行载波，则生成的DCI用于指示终端设备在第一上行载波向网络设备发送上行信号；若网络设备确定将要调度的上行载波为第二上行载波，则生成的DCI用于指示终端设备在第二上行载波向网络设备发送上行信号。
进一步地，网络设备可以依据多种因素来确定将要调度的上行载波，比如，网络设备可以根据当前第一上行载波和第二上行载波的利用率来确定，具体不做限定。
本申请中，第一上行载波和第二上行载波中的任一个可以为上行增补载波。在一个示例中，第一上行载波为NR TDD上行载波，第二上行载波为上行增补载波。
步骤302，网络设备在第一下行载波上向终端设备发送所述DCI。
其中，所述DCI用于指示所述终端设备在第一上行载波或第二上行载波上向所述网络设备发送上行信号；第一比特数与第二比特数相等，所述第一比特数为所述DCI指示所述终端设备在所述第一上行载波上向所述网络设备发送上行信号时所述DCI的比特数，所述第二比特数为所述DCI指示所述终端设备在所述第二上行载波上向所述网络设备发送上行信号时所述DCI的比特数。此处，上行信号可以是上行数据信号，也可以是上行控制信号，或者上行测量信号，此处不对上行信号的类型进行限定。具体的，上行数据信号具体可以 是指物理上行共享信道(physical-layer uplink shared channel，PUSCH)，也可以是其他名称，只要是与上行数据信号实质相同的信号都在本申请的保护范围内；上行测量信号具体可以是探测导频信号(sounding reference signal，SRS)，当然也可以是其他名称。
本申请中，第一下行载波、第一上行载波和第二上行载波属于同一个小区，或者，第一下行载波、第一上行载波和第二上行载波属于同一个带宽组合，又或者说，第一下行载波对应第一上行载波和第二上行载波，或者第一上行载波和第二上行载波对应与第一下行载波。在一个示例中，若第一上行载波为NR TDD上行载波，第二上行载波为上行增补载波，则第一下行载波为NR TDD下行载波，当然也可以反过来。
步骤303，终端设备在第一下行载波上从网络设备接收DCI。
此处，由于第一比特数与第二比特数相等，因此，终端设备可按照第一比特数(或第二比特数)在搜索空间上盲检测并获取DCI。
步骤304，终端设备根据所述DCI确定第一上行载波或第二上行载波。
此处，若终端设备根据DCI确定出第一上行载波，则可在第一上行载波向网络设备发送上行信号；若终端设备根据DCI确定出第二上行载波，则可在第二上行载波向网络设备发送上行信号。
下面对本申请中的DCI所包括的内容进行具体说明。
DCI中可以包括第一指示域，第一指示域用于指示所述第一上行载波或所述第二上行载波，如此，在上述步骤304中，终端设备可根据第一指示域确定第一上行载波或第二上行载波。需要说明的是，终端设备根据所述DCI确定第一上行载波或第二上行载波的方式可以有多种，此处仅为一种可能的确定方式。
进一步地，针对第一指示域，一种可能的实现方式：针对于网络设备可在第一上行载波或第二上行载波的带宽范围内为终端设备分配资源的场景，第一指示域可用于指示出第一上行载波或第二上行载波，终端设备可在第一指示域所指示的上行载波或第二上行载波上向网络设备发送上行信号。
具体来说，可以预先设置第一指示域的状态与所指示的上行载波之间的对应关系，或者，预先由网络设备配置好对应关系并发送给终端设备。如此，终端设备接收到DCI后，可通过解析得到第一指示域的状态，进而根据第一指示域的状态与所指示的上行载波之间的对应关系，确定出第一上行载波或第二上行载波。
在一个示例中，第一指示域可以包括1比特，第一指示域的状态与所指示的上行载波之间的对应关系可以如表1a或表1b所示。
表1a：第一种可能的实现方式中的对应关系示例1
第一指示域的状态 所指示的上行载波
0 第一上行载波
1 第二上行载波
表1b：第一种可能的实现方式中的对应关系示例2
第一指示域的状态 所指示的上行载波
1 第一上行载波
0 第二上行载波
如表1a所示，当第一指示域的状态为“0”时，则指示第一上行载波，当第一指示域的 状态为“1”时，则指示第二上行载波。如表1b所示，当第一指示域的状态为“0”时，则指示第二上行载波，当第一指示域的状态为“1”时，则指示第一上行载波。
可选地，第一指示域可以是小区公共(cell common或cell specific)的域，应理解，小区内的所有终端设备对第一指示域有相同的理解。例如，对于任一终端设备，第一指示域的状态为0时，其指示的上行载波为NR TDD上行载波，第一指示域的状态为1时，其指示的上行载波为SUL。当然，第一指示域也可以是终端设备专用(UE specific)的域，应理解，小区内的终端设备对第一指示域可以有不同的理解。例如，对于第一终端设备，第一指示域的状态为0时，其指示上行载波为NR TDD上行载波，第一指示域的状态为1时，其指示的上行载波为SUL；对于第二终端设备，第一指示域的状态为0时，其指示上行载波为SUL，第一指示域的状态为1时，其指示的上行载波为NR TDD上行载波。
需要说明的，网络设备给终端设备发送的DCI的种类可以有多种，这些DCI中包括第一指示域的DCI也可以有多种，对于某些类型的DCI，其包括的第一指示域可以是小区公共的域，对于另一些类型的DCI，其包括的第一指示域可以是终端设备专用的域。
另一种可能的实现方式：考虑到在5G NR系统中，一个载波的最大带宽可以到400MHz，但是终端设备支持的最大带宽能力可能达不到如此大的带宽。当终端设备不支持一个载波的带宽能力的时候，网络设备需要先在载波内为终端设备配置一个或多个带宽部分(bandwidth part，BWP)，然后在BWP的范围内向该终端设备分配资源。此种情形下，第一上行载波中可以包括至少一个上行BWP，第二上行载波中可以包括至少一个上行BWP，在一个示例中，第一上行载波中包括两个上行BWP，分别为上行BWP1a、上行BWP1b；第二上行载波中包括两个上行BWP，分别为上行BWP2a、上行BWP2b。需要说明的是，1a，1b，2a，2b只是用于区分四个不同的BWP，并不限定BWP的编号方法，这四个BWP也可以编号为BWP0，BWP1，BWP2和BWP3，当然也可以采用其他的编号方式。DCI需要指示出所述第一上行载波中的一个上行BWP或所述第二上行载波中的一个上行BWP，如此，终端设备可在DCI所指示的第一上行载波中的一个上行BWP或所述第二上行载波中的一个上行BWP上向网络设备发送上行信号。
可选地，DCI中包括第一指示域，第一指示域用于指示所述第一上行载波中的一个上行BWP或所述第二上行载波中的一个上行BWP。
同样地，可以预先设置第一指示域的状态与所指示的上行载波之间的对应关系，或者，预先由网络设备配置好对应关系并发送给终端设备。
在一个示例中，第一指示域中可以包括两部分，第一部分用于指示出目标上行载波，第二部分用于指示出目标上行载波中的一个BWP。基于上述示例，可设置第一指示域的第一部分包含1比特，第二部分包含1比特，第一部分为高比特位，第二部分为低比特位，如此，第一指示域的状态与所指示的内容之间的对应关系可以如表2a所示。
表2a：第二种可能的实现方式中的对应关系示例1
第一指示域的状态 所指示的内容
10 BWP1a
11 BWP1b
00 BWP2a
01 BWP2b
需要说明的是，表2a仅为一种可能的示例性表示，在其它的示例中，也可以是第一指示域中的低比特位用于指示目标上行载波，而高比特位用于指示目标上行载波中的一个BWP。
在另一个示例中，第一指示域中不区分用于指示出目标上行载波的部分和用于指示出目标上行载波中的一个BWP部分。基于上述示例，可设置第一指示域中包含2比特，第一指示域的状态与所指示的内容之间的对应关系可以如表2b所示。
表2b：第二种可能的实现方式中的对应关系示例2
第一指示域的状态 所指示的内容
10 BWP1a
11 BWP2a
00 BWP1b
01 BWP2b
需要说明的是，表2b仅为一种可能的示例性表示，在其它的示例中，可以灵活设置上述对应关系。
还需要说明的是，第一上行载波或第二上行载波中包含的BWP个数不限于本实施例中的2个，也可以是3个或者4个，或更多，并且第一上行载波中包括的BWP的个数与第二上行载波中包括的BWP的个数也可以不同，例如第一上行载波中的BWP个数为4个，第二上行载波中BWP的个数为1个。
第一指示域的比特数也不限于2比特，也可以是3比特或者更多比特。
可选地，DCI中包括第一指示域和第四指示域，第一指示域用于指示目标上行载波，第四指示域用于指示目标上行载波中的目标BWP。第一指示域和第四指示域可以是两个独立的指示域。基于上述示例，可设置第一指示域中包含1比特，第四指示域中包含1比特，第一指示域的状态与所指示的内容之间的对应关系可以如表2c所示，第四指示域的状态与所指示的内容之间的对应关系可以如表2d所示。
表2c：第二种可能的实现方式中的对应关系示例3
第一指示域的状态 所指示的内容
1 第一上行载波
0 第二上行载波
表2d：第二种可能的实现方式中的对应关系示例4
第四指示域的状态 所指示的内容
1 BWP1a或BWP2a
0 BWP1b或BWP2b
又一种可能的实现方式：终端设备支持载波聚合，即终端设备拥有至少两个服务小区，第一上行载波和第二上行载波属于至少两个服务小区中的一个服务小区。在一个示例中，终端设备拥有两个服务小区，分别为服务小区a和服务小区b，服务小区a中包括上行载波a1和上行载波a2，服务小区b中包括上行载波b1和上行载波b2。针对于服务小区a，若上行载波a1为第一上行载波，则上行载波a2为第二上行载波，当然也可以反过来；针对于服务小区b，若上行载波b1为第一上行载波，则上行载波b2为第二上行载波，当然 也可以反过来。需要说明的是，a1，a2，b1，b2只是用于区分四个不同的上行载波，并不限定上行载波的编号方法，这四个上行载波也可以编号为上行载波0，上行载波1，上行载波2和上行载波3，当然也可以采用其他的编号方式。同样地，a，b只是用于区分两个不同的服务小区，并不限定服务小区的编号方法，这两个服务小区也可以编号为服务小区0，服务小区1，当然也可以采用其他的编号方式。此种情形下，DCI需要指示出至少两个服务小区中的一个服务小区中的一个上行载波，如此，终端设备可根据DCI指示出的一个服务小区的一个上行载波上向网络设备发送上行信号。
可选地，DCI中包括第一指示域，第一指示域用于指示至少两个服务小区中的一个服务小区中的一个上行载波。
同样地，可以预先设置第一指示域的状态与所指示的上行载波之间的对应关系，或者，预先由网络设备配置好对应关系并发送给终端设备。
在一个示例中，第一指示域中可以包括两部分，第一部分用于指示两个服务小区中的目标服务小区，第二部分用于目标服务小区中的目标上行载波。基于上述示例，可设置第一指示域的第一部分包含1比特，第二部分包含1比特，第一部分为高比特位，第二部分为低比特位，如此，第一指示域的状态与所指示的内容之间的对应关系可以如表3a所示。
表3a：第三种可能的实现方式中的对应关系示例1
第一指示域的状态 所指示的内容
10 上行载波a1
11 上行载波a2
00 上行载波b1
01 上行载波b2
需要说明的是，表3a仅为一种可能的示例性表示，在其它的示例中，也可以是第一指示域中的低比特位用于指示目标服务小区，而高比特位用于指示目标服务小区中的目标上行载波。
在另一个示例中，第一指示域中不区分用于指示出目标服务小区的部分和用于指示出目标服务小区中的一个上行载波的部分。基于上述示例，可设置第一指示域中包含2比特，第一指示域的状态与所指示的内容之间的对应关系可以如表3b所示。
表3b：第二种可能的实现方式中的对应关系示例2
第一指示域的状态 所指示的内容
10 上行载波a1
11 上行载波b1
00 上行载波a2
01 上行载波b2
需要说明的是，表3b仅为一种可能的示例性表示，在其它的示例中，可以灵活设置上述对应关系。
还需要说明的是，服务小区a或服务小区b中包含的上行载波个数不限于本实施例中的2个，也可以是3个或者4个，或更多，并且服务小区a中包括的上行载波的个数与服务小区b中包括的上行载波的个数也可以不同，例如服务小区a中的上行载波个数为4个，服务小区b中的上行载波个数为2个。
第一指示域的比特数也不限于2比特，也可以是3比特或者更多比特。
可选地，DCI中包括第一指示域和第三指示域，第一指示域用于指示目标服务小区，第四指示域用于指示目标服务小区中的目标上行载波。第一指示域和第三指示域可以是两个独立的指示域。基于上述示例，可设置第一指示域中包含1比特，第三指示域中包含1比特，第一指示域的状态与所指示的内容之间的对应关系可以如表3c所示，第三指示域的状态与所指示的内容之间的对应关系可以如表3d所示。
表3c：第三种可能的实现方式中的对应关系示例3
第一指示域的状态 所指示的内容
0 服务小区a
1 服务小区b
表3d：第三种可能的实现方式中的对应关系示例4
第三指示域的状态 所指示的内容
0 上行载波a1或上行载波b1
1 上行载波a2或上行载波b2
DCI中还可以包括第二指示域，第二指示域用于指示所述终端设备在所述第一上行载波或所述第二上行载波上向所述网络设备发送上行信号的频率资源。第三比特数与第四比特数相等，所述第三比特数为所述DCI指示所述终端设备在第一上行载波上向所述网络设备发送上行信号时所述第二指示域的比特数，所述第四比特数为所述DCI指示所述终端设备在第二上行载波上向所述网络设备发送上行信号时所述第二指示域的比特数。
其中，第二指示域的比特数(即为第三比特数或第四比特数)可以是由网络设备预先确定好的，具体确定方式可以有多种，比如，第二指示域的比特数可以由第一上行载波的配置信息和第二上行载波的配置信息联合来确定。其中，第一上行载波的配置信息包括第一上行载波的带宽中包含的资源块个数，第二上行载波的配置信息包括第二上行资源的带宽中包含的资源块个数。
第一种可能的实现方式：第二指示域的比特数是由第一上行载波的带宽中包含的资源块个数和第二上行载波的带宽中包含的资源块个数中的最大值来确定。例如，当第二指示域指示第一上行载波的带宽中的资源块时需要X1比特，当第二指示域指示第二上行载波的带宽中的资源块时需要X2比特，且X1大于X2，则可确定第二指示域的比特数为X1比特。此种情形下，当DCI用于指示终端设备在第二上行载波上向网络设备发送上行信号时，第二指示域中的前X2个比特用于指示频域资源位置，后X1-X2个比特为填充比特。
第二种可能的实现方式：第二指示域的比特数是由第一上行载波的带宽中包含的资源块个数和第二上行载波的带宽中包含的资源块个数中的最小值来确定。例如，当第二指示域指示第一上行载波的带宽中的资源块时需要X1比特，当第二指示域指示第二上行载波的带宽中的资源块时需要X2比特，且X1大于X2，则可确定第二指示域的比特数为X2比特，从而限制网络设备在第一上行载波的带宽中只能调度X2比特对应的资源块个数，或者，增大网络设备在第一上行载波带宽中调度的频域资源粒度。
需要说明的是，上述内容中所涉及的上行载波的带宽具体可以是指网络设备配置的初始上行带宽(initial UL BWP)，或者，也可以是指默认上行带宽(default UL BWP)。
还需要说明的是，本申请实施例中对于第一指示域，第二指示域和第三指示域的所有可能的实现方式并不限于应用在本申请实施例中第一比特数和第二比特数相等的情况下，还可以应用在第一比特数和第二比特数不相等的情况。
针对于上述方法流程，本申请中还可以包括如下步骤：
步骤300a，网络设备向终端设备发送第一消息，第一消息用于指示DCI中包括第一指示域。
步骤300b，终端设备从所述网络设备接收第一消息。
此处，第一消息可以为系统消息或广播消息。当第一消息中配置了上行增补载波时，第一消息指示DCI中包括第一指示域。在其它实施方式中，若第一消息中未配置上行增补载波，则第一消息可以指示DCI中包括第一指示域或者不包括第一指示域。
或者，第一消息也可以为网络设备发送给某一特定终端设备的高层信令。当第一消息中配置了终端设备支持动态调度上行载波的功能时，第一消息指示DCI中包括第一指示域。在其它实施方式中，当第一消息中未配置终端设备支持动态调度上行载波的功能时，第一消息可以指示DCI中包括第一指示域或者不包括第一指示域；此种情形下，第一消息可以指示一个固定的上行载波，或者，也可以是网络设备向终端设备发送的其它消息指示一个固定的上行载波，该固定的上行载波可以为第一上行载波或第二上行载波。举例说明，当该固定的上行载波为第一上行载波时，网络设备向终端设备发送的用于调度上行数据传输的DCI只能调度该终端设备在第一上行载波上发送上行数据。这种情况下，DCI中可以包括第一指示域也可以不包括第一指示域。当DCI中包括第一指示域时，该第一指示域的状态可以为固定状态，例如总是为0或者总是为1，当然也可以为随机状态，例如随机为0或1，此时终端设备可以不根据DCI中的第一指示域来确定上行载波，而直接确定第一上行载波用于发送上行数据。上述特征也适用于回退DCI。
针对于本申请中的DCI，需要说明的以下几点：
(1)DCI的比特数(即第一比特数或第二比特数)可以是由网络设备预先确定好的。具体来说，网络设备配置好第一上行载波和第二上行载波后，可根据第一上行载波和第二上行载波的带宽或子载波间隔或其他配置参数来确定DCI的比特数，后续网络设备可根据确定好的DCI的比特数来向终端设备发送DCI。
(2)本申请中的DCI可以为回退DCI，回退DCI可以理解为默认DCI或缺省状态下的DCI，或者理解为终端设备在小区公共搜索空间中检测的DCI，并不限定DCI的名称。接入网络设备的终端设备在符合特定条件(比如没有接收到网络设备通过RRC信令发送的配置信息)，只能去检测回退DCI，并根据检测到的回退DCI向网络设备发送上行信号。本申请中，针对于回退DCI来说，由于第一比特数和第二比特数相等，从而能够有效保证网络设备在RRC重配过程中保持不变，避免出现网络设备和终端设备对DCI的比特数理解不一致的情况；其中，所述回退DCI可以是指专门用于上行调度的回退DCI，或者，也可以是下行调度和上行调度统一设计的回退DCI。
本申请中，若网络设备配置了上行增补载波，则网络设备发送的回退DCI中包括上述第一指示域(及上述第三指示域或第四指示域)；若网络设备未配置上行增补载波，则网络设备发送的回退DCI中可以包括上述第一指示域(及上述第三指示域或第四指示域)，或者，也可以不包括上述第一指示域(及上述第三指示域或第四指示域)。
本申请中，在网络设备给终端设备进行RRC配置或者重配置的过程中，网络设备给 终端设备发送的回退DCI的比特数保持不变，从而，终端设备可以在RRC配置或者重配置的过程中从网络设备接收回退DCI，并且可以按照一种DCI的比特数对DCI进行盲检测。这样能够使得终端设备在RRC配置或者重配的过程中，确定回退DCI的比特数，以对该回退DCI进行盲检测。
本申请中的DCI也可以为非回退DCI，即针对于某一特定终端设备的DCI。若网络设备为终端设备配置支持动态调度上行载波的功能，则网络设备发送给该终端设备的DCI中包括上述第一指示域(及上述第三指示域或第四指示域)。若网络设备为终端设备未配置支持动态调度上行载波的功能，则网络设备发送给该终端设备的DCI中可以包括上述第一指示域(及上述第三指示域或第四指示域)，或者，也可以不包括上述第一指示域(及上述第三指示域或第四指示域)。
针对于网络设备为终端设备未配置支持动态调度上行载波的功能的情形，第一比特数和第二比特数可以相等，也可以不相等；第二指示域的比特数可以相等，也可以不相等。在一个示例中，当网络设备配置第一上行载波为PUSCH载波时，DCI的第二指示域的比特数第一上行载波的配置信息决定；当网络设备配置第二上行载波为PUSCH载波时，DCI的第二指示域的比特数由第二上行载波的配置信息决定。
本申请中，第一DCI的搜索空间和第二DCI的搜索空间可以相同，或者，也可以不相同，其中，第一DCI是指用于指示所述终端设备在所述第一上行载波上向所述网络设备发送上行信号的DCI，第二DCI是指用于指示所述终端设备在所述第二上行载波上向所述网络设备发送上行信号的DCI。
第一DCI的搜索空间与第一DCI调度的上行载波之间没有关联关系，也就是说，网络设备可以在第一搜索空间上向终端设备发送第一DCI或第二DCI；或者，网络设备可以在第一搜索空间上向终端设备发送第一DCI，在第二搜索空间上向终端设备发送第二DCI；又或者，网络设备可以在第二搜索空间上向终端设备发送第一DCI，在第一搜索空间上向终端设备发送第二DCI。
具体来说，对于回退DCI，第一DCI的搜索空间与第二DCI的搜索空间相同。对于非回退DCI，第一DCI的搜索空间与第二DCI的搜索空间可以相同，也可以不同。
针对上述方法流程，本申请还提供一种终端设备和网络设备，该终端设备和网络设备的具体实现可参照上述方法流程。
基于以上实施例，本申请提供一种通信装置，该通信装置可以为终端设备，用于实现图3所示方法实施例中由终端设备执行的相应流程或者步骤。参阅图4所示，通信装置400可以包括：收发模块401、处理模块402，具体来说：
收发模块401，用于在第一下行载波上从网络设备接收DCI，所述DCI用于指示所述终端设备在第一上行载波或第二上行载波上向所述网络设备发送上行信号；第一比特数与第二比特数相等，所述第一比特数为所述DCI指示所述终端设备在所述第一上行载波上向所述网络设备发送上行信号时所述DCI的比特数，所述第二比特数为所述DCI指示所述终端设备在所述第二上行载波上向所述网络设备发送上行信号时所述DCI的比特数；
处理模块402，用于根据所述DCI确定所述第一上行载波或所述第二上行载波。
在一种可能的设计中，所述DCI中包括第一指示域，所述第一指示域用于指示所述第一上行载波或所述第二上行载波。
在一种可能的设计中，所述收发模块401还用于，从所述网络设备接收第一消息，第 一消息用于指示所述DCI中包括第一指示域，所述第一指示域用于指示所述第一上行载波或所述第二上行载波；
所述处理模块402具体用于，根据所述第一指示域确定所述第一上行载波或所述第二上行载波。
在一种可能的设计中，所述第一上行载波中包括至少一个上行带宽部分BWP，所述第二上行载波中包括至少一个上行BWP；
所述第一指示域用于指示所述第一上行载波中的一个上行BWP或所述第二上行载波中的一个上行BWP。
在一种可能的设计中，所述终端设备拥有至少两个服务小区，所述第一上行载波和所述第二上行载波属于所述至少两个服务小区中的一个服务小区；
所述第一指示域用于指示所述至少两个服务小区中的一个服务小区中的一个上行载波。
在一种可能的设计中，所述终端设备拥有至少两个服务小区，所述第一上行载波和所述第二上行载波属于所述至少两个服务小区中的一个服务小区，所述DCI中还包括第三指示域；
所述第三指示域指示所述至少两个服务小区中的第一服务小区；
所述第一指示域指示所述第一服务小区中的一个上行载波。
在一种可能的设计中，所述DCI中包括第二指示域，所述第二指示域用于指示所述终端设备在所述第一上行载波或所述第二上行载波上向所述网络设备发送上行信号的频率资源；第三比特数与第四比特数相等，所述第三比特数为所述DCI指示所述终端设备在第一上行载波上向所述网络设备发送上行信号时所述第二指示域的比特数，所述第四比特数为所述DCI指示所述终端设备在第二上行载波上向所述网络设备发送上行信号时所述第二指示域的比特数。
在一种可能的设计中，所述第一消息为广播消息或系统消息，所述DCI为回退DCI。
在一种可能的设计中，所述第一下行载波、所述第一上行载波和所述第二上行载波属于同一个小区。
基于以上实施例，本申请还提供一种通信装置，该通信装置可以为网络设备，用于实现图3所示方法实施例中由网络设备执行的相应流程或者步骤。参阅图5所示，通信装置500可以包括：收发模块501、处理模块502，具体来说：
处理模块502，用于确定DCI；
收发模块501，用于在第一下行载波上向终端设备发送所述DCI，所述DCI用于指示所述终端设备在第一上行载波或第二上行载波上向所述网络设备发送上行信号；第一比特数与第二比特数相等，所述第一比特数为所述DCI指示所述终端设备在所述第一上行载波上向所述网络设备发送上行信号时所述DCI的比特数，所述第二比特数为所述DCI指示所述终端设备在所述第二上行载波上向所述网络设备发送上行信号时所述DCI的比特数。
在一种可能的设计中，所述DCI中包括第一指示域，所述第一指示域用于指示所述第一上行载波或所述第二上行载波。
在一种可能的设计中，所述收发模块501还用于，向所述终端设备发送第一消息，所述第一消息用于指示所述DCI中包括第一指示域，所述第一指示域用于指示所述第一上行载波或所述第二上行载波。
在一种可能的设计中，所述第一上行载波中包括至少一个上行带宽部分BWP，所述第二上行载波中包括至少一个上行BWP；
所述第一指示域用于指示所述第一上行载波中的一个上行BWP或所述第二上行载波中的一个上行BWP。
在一种可能的设计中，所述终端设备拥有至少两个服务小区，所述第一上行载波和所述第二上行载波属于所述至少两个服务小区中的一个服务小区；
所述第一指示域用于指示所述至少两个服务小区中的一个服务小区中的一个上行载波。
在一种可能的设计中，所述终端设备拥有至少两个服务小区，所述第一上行载波和所述第二上行载波属于所述至少两个服务小区中的一个服务小区，所述DCI中还包括第三指示域；
所述第三指示域指示所述至少两个服务小区中的第一服务小区；
所述第一指示域指示所述第一服务小区中的一个上行载波。
在一种可能的设计中，所述DCI中包括第二指示域，所述第二指示域用于指示所述终端设备在所述第一上行载波或所述第二上行载波上向所述网络设备发送上行信号的频率资源；第三比特数与第四比特数相等，所述第三比特数为所述DCI指示所述终端设备在第一上行载波上向所述网络设备发送上行信号时所述第二指示域的比特数，所述第四比特数为所述DCI指示所述终端设备在第二上行载波上向所述网络设备发送上行信号时所述第二指示域的比特数。
在一种可能的设计中，所述第一消息为广播消息或系统消息，所述DCI为回退DCI。
在一种可能的设计中，所述第一下行载波、所述第一上行载波和所述第二上行载波属于同一个小区。
需要说明的是，本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。在本申请的实施例中的各功能模块可以集成在一个处理模块中，也可以是各个模块单独物理存在，也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。
所述集成的模块如果以软件功能模块的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
基于以上实施例，本申请还提供一种通信装置，该通信装置可以为终端设备，用于实现图3所示方法实施例中由终端设备执行的相应流程或者步骤。该通信装置具有如图4所示的通信装置400的功能。参阅图6所示，所述通信装置600包括：通信模块601、处理器602；
所述通信模块601，用于与其他设备进行通信交互，例如，在第一下行载波上从网络 设备接收下行控制信息DCI，所述DCI用于指示所述终端设备在第一上行载波或第二上行载波上向所述网络设备发送上行信号；第一比特数与第二比特数相等，所述第一比特数为所述DCI指示所述终端设备在所述第一上行载波上向所述网络设备发送上行信号时所述DCI的比特数，所述第二比特数为所述DCI指示所述终端设备在所述第二上行载波上向所述网络设备发送上行信号时所述DCI的比特数。
所述通信模块601可以为RF电路、Wi-Fi模块、通信接口、蓝牙模块等。
所述处理器602，用于实现第三方面中处理模块的功能，包括：
根据所述DCI确定所述第一上行载波或所述第二上行载波。
可选地，通信装置600还可以包括：存储器604，用于存放程序等。具体地，程序可以包括程序代码，该程序代码包括指令。存储器604可能包含RAM，也可能还包括非易失性存储器，例如至少一个磁盘存储器。处理器602执行存储器604所存放的应用程序，实现上述功能。
一种可能的方式中，通信模块601、处理器602和存储器604之间通信连接。例如，通信模块601、处理器602和存储器604可以通过总线603相互连接；总线603可以是PCI总线或EISA总线等。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图6中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
基于以上实施例，本申请还提供一种通信装置，该通信装置可以为网络设备，用于实现图3所示方法实施例中由网络设备执行的相应流程或者步骤。该通信装置具有如图5所示的通信装置500的功能。参阅图7所示，所述通信装置700包括：通信模块701、处理器702；
所述处理器702，用于实现第四方面中处理模块的功能，包括：确定DCI；
所述通信模块701，用于与其他设备进行通信交互，例如，在第一下行载波上向终端设备发送所述DCI，所述DCI用于指示所述终端设备在第一上行载波或第二上行载波上向所述网络设备发送上行信号；第一比特数与第二比特数相等，所述第一比特数为所述DCI指示所述终端设备在所述第一上行载波上向所述网络设备发送上行信号时所述DCI的比特数，所述第二比特数为所述DCI指示所述终端设备在所述第二上行载波上向所述网络设备发送上行信号时所述DCI的比特数。
所述通信模块701可以为RF电路、Wi-Fi模块、通信接口、蓝牙模块等。
可选地，通信装置700还可以包括：存储器704，用于存放程序等。具体地，程序可以包括程序代码，该程序代码包括指令。存储器704可能包含RAM，也可能还包括非易失性存储器，例如至少一个磁盘存储器。处理器702执行存储器704所存放的应用程序，实现上述功能。
一种可能的方式中，通信模块701、处理器702和存储器704之间通信连接。例如，通信模块701、处理器702和存储器704可以通过总线703相互连接；总线703可以是PCI总线或EISA总线等。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图7中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算 机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘(solid state disk，SSD))等。
本发明实施例是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本发明实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (32)

  1. 一种通信方法，其特征在于，所述方法包括：
    终端设备在第一下行载波上从网络设备接收下行控制信息DCI，所述DCI用于指示所述终端设备在第一上行载波或第二上行载波上向所述网络设备发送上行信号；第一比特数与第二比特数相等，所述第一比特数为所述DCI指示所述终端设备在所述第一上行载波上向所述网络设备发送上行信号时所述DCI的比特数，所述第二比特数为所述DCI指示所述终端设备在所述第二上行载波上向所述网络设备发送上行信号时所述DCI的比特数，其中，所述第一下行载波、所述第一上行载波和所述第二上行载波属于同一个小区；
    所述终端设备根据所述DCI确定所述第一上行载波或所述第二上行载波。
  2. 根据权利要求1所述的方法，其特征在于，所述终端设备根据所述DCI确定所述第一上行载波或所述第二上行载波，包括：
    所述终端设备从所述网络设备接收第一消息，第一消息用于指示所述DCI中包括第一指示域，所述第一指示域用于指示所述第一上行载波或所述第二上行载波；
    所述终端设备根据所述第一指示域确定所述第一上行载波或所述第二上行载波。
  3. 根据权利要求2所述的方法，其特征在于，所述第一上行载波中包括至少一个上行带宽部分BWP，所述第二上行载波中包括至少一个上行BWP；
    所述第一指示域用于指示所述第一上行载波中的一个上行BWP或所述第二上行载波中的一个上行BWP。
  4. 根据权利要求2所述的方法，其特征在于，所述终端设备拥有至少两个服务小区，所述第一上行载波和所述第二上行载波属于所述至少两个服务小区中的一个服务小区；
    所述第一指示域用于指示所述至少两个服务小区中的一个服务小区中的一个上行载波。
  5. 根据权利要求2所述的方法，其特征在于，所述终端设备拥有至少两个服务小区，所述第一上行载波和所述第二上行载波属于所述至少两个服务小区中的一个服务小区，所述DCI中还包括第三指示域；
    所述第三指示域指示所述至少两个服务小区中的第一服务小区；
    所述第一指示域指示所述第一服务小区中的一个上行载波。
  6. 根据权利要求1至5中任一所述的方法，其特征在于，所述DCI中包括第二指示域，所述第二指示域用于指示所述终端设备在所述第一上行载波或所述第二上行载波上向所述网络设备发送上行信号的频率资源；第三比特数与第四比特数相等，所述第三比特数为所述DCI指示所述终端设备在第一上行载波上向所述网络设备发送上行信号时所述第二指示域的比特数，所述第四比特数为所述DCI指示所述终端设备在第二上行载波上向所述网络设备发送上行信号时所述第二指示域的比特数。
  7. 根据权利要求2至6任一所述的方法，其特征在于，所述第一消息为广播消息或系统消息，所述DCI为回退DCI。
  8. 根据权利要求2至5中任一所述的方法，其特征在于，所述第一指示域为小区公共的指示域，且所述第一指示域为1比特的指示域；所述第一指示域的状态为0时，指示的上行载波为新空口时分双工NR TDD上行载波，所述第一指示域的状态为1时，指示的上行载波为上行增补SUL载波。
  9. 一种通信方法，其特征在于，所述方法包括：
    网络设备确定DCI；
    所述网络设备在第一下行载波上向终端设备发送所述DCI，所述DCI用于指示所述终端设备在第一上行载波或第二上行载波上向所述网络设备发送上行信号；第一比特数与第二比特数相等，所述第一比特数为所述DCI指示所述终端设备在所述第一上行载波上向所述网络设备发送上行信号时所述DCI的比特数，所述第二比特数为所述DCI指示所述终端设备在所述第二上行载波上向所述网络设备发送上行信号时所述DCI的比特数。
  10. 根据权利要求9所述的方法，其特征在于，所述方法还包括：
    所述网络设备向所述终端设备发送第一消息，所述第一消息用于指示所述DCI中包括第一指示域，所述第一指示域用于指示所述第一上行载波或所述第二上行载波。
  11. 根据权利要求10所述的方法，其特征在于，所述第一上行载波中包括至少一个上行带宽部分BWP，所述第二上行载波中包括至少一个上行BWP；
    所述第一指示域用于指示所述第一上行载波中的一个上行BWP或所述第二上行载波中的一个上行BWP。
  12. 根据权利要求10所述的方法，其特征在于，所述终端设备拥有至少两个服务小区，所述第一上行载波和所述第二上行载波属于所述至少两个服务小区中的一个服务小区；
    所述第一指示域用于指示所述至少两个服务小区中的一个服务小区中的一个上行载波。
  13. 根据权利要求9至12中任一所述的方法，其特征在于，所述DCI中包括第二指示域，所述第二指示域用于指示所述终端设备在所述第一上行载波或所述第二上行载波上向所述网络设备发送上行信号的频率资源；第三比特数与第四比特数相等，所述第三比特数为所述DCI指示所述终端设备在第一上行载波上向所述网络设备发送上行信号时所述第二指示域的比特数，所述第四比特数为所述DCI指示所述终端设备在第二上行载波上向所述网络设备发送上行信号时所述第二指示域的比特数。
  14. 根据权利要求10至13任一所述的方法，其特征在于，所述第一消息为广播消息或系统消息，所述DCI为回退DCI。
  15. 根据权利要求9至12中任一所述的方法，其特征在于，所述第一指示域为小区公共的指示域，且所述第一指示域为1比特的指示域；所述第一指示域的状态为0时，指示的上行载波为新空口时分双工NR TDD上行载波，所述第一指示域的状态为1时，指示的上行载波为上行增补SUL载波。
  16. 一种终端设备，其特征在于，所述终端设备包括：
    收发模块，用于在第一下行载波上从网络设备接收DCI，所述DCI用于指示所述终端设备在第一上行载波或第二上行载波上向所述网络设备发送上行信号；第一比特数与第二比特数相等，所述第一比特数为所述DCI指示所述终端设备在所述第一上行载波上向所述网络设备发送上行信号时所述DCI的比特数，所述第二比特数为所述DCI指示所述终端设备在所述第二上行载波上向所述网络设备发送上行信号时所述DCI的比特数，其中，所述第一下行载波、所述第一上行载波和所述第二上行载波属于同一个小区；
    处理模块，用于根据所述DCI确定所述第一上行载波或所述第二上行载波。
  17. 根据权利要求16所述的终端设备，其特征在于，所述收发模块还用于，从所述 网络设备接收第一消息，第一消息用于指示所述DCI中包括第一指示域，所述第一指示域用于指示所述第一上行载波或所述第二上行载波；
    所述处理模块具体用于，根据所述第一指示域确定所述第一上行载波或所述第二上行载波。
  18. 根据权利要求17所述的终端设备，其特征在于，所述第一上行载波中包括至少一个上行带宽部分BWP，所述第二上行载波中包括至少一个上行BWP；
    所述第一指示域用于指示所述第一上行载波中的一个上行BWP或所述第二上行载波中的一个上行BWP。
  19. 根据权利要求17所述的终端设备，其特征在于，所述终端设备拥有至少两个服务小区，所述第一上行载波和所述第二上行载波属于所述至少两个服务小区中的一个服务小区；
    所述第一指示域用于指示所述至少两个服务小区中的一个服务小区中的一个上行载波。
  20. 根据权利要求17所述的终端设备，其特征在于，所述终端设备拥有至少两个服务小区，所述第一上行载波和所述第二上行载波属于所述至少两个服务小区中的一个服务小区，所述DCI中还包括第三指示域；
    所述第三指示域指示所述至少两个服务小区中的第一服务小区；
    所述第一指示域指示所述第一服务小区中的一个上行载波。
  21. 根据权利要求16至20中任一所述的终端设备，其特征在于，所述DCI中包括第二指示域，所述第二指示域用于指示所述终端设备在所述第一上行载波或所述第二上行载波上向所述网络设备发送上行信号的频率资源；第三比特数与第四比特数相等，所述第三比特数为所述DCI指示所述终端设备在第一上行载波上向所述网络设备发送上行信号时所述第二指示域的比特数，所述第四比特数为所述DCI指示所述终端设备在第二上行载波上向所述网络设备发送上行信号时所述第二指示域的比特数。
  22. 根据权利要求17至21任一所述的终端设备，其特征在于，所述第一消息为广播消息或系统消息，所述DCI为回退DCI。
  23. 根据权利要求17至22中任一所述的终端设备，其特征在于，所述第一指示域为小区公共的指示域，且所述第一指示域为1比特的指示域；所述第一指示域的状态为0时，指示的上行载波为新空口时分双工NR TDD上行载波，所述第一指示域的状态为1时，指示的上行载波为上行增补SUL载波。
  24. 一种网络设备，其特征在于，所述网络设备包括：
    处理模块，用于确定DCI；
    收发模块，用于在第一下行载波上向终端设备发送所述DCI，所述DCI用于指示所述终端设备在第一上行载波或第二上行载波上向所述网络设备发送上行信号；第一比特数与第二比特数相等，所述第一比特数为所述DCI指示所述终端设备在所述第一上行载波上向所述网络设备发送上行信号时所述DCI的比特数，所述第二比特数为所述DCI指示所述终端设备在所述第二上行载波上向所述网络设备发送上行信号时所述DCI的比特数，其中，所述第一下行载波、所述第一上行载波和所述第二上行载波属于同一个小区。
  25. 根据权利要求24所述的网络设备，其特征在于，所述收发模块还用于，向所述终端设备发送第一消息，所述第一消息用于指示所述DCI中包括第一指示域，所述第一指 示域用于指示所述第一上行载波或所述第二上行载波。
  26. 根据权利要求25所述的网络设备，其特征在于，所述第一上行载波中包括至少一个上行带宽部分BWP，所述第二上行载波中包括至少一个上行BWP；
    所述第一指示域用于指示所述第一上行载波中的一个上行BWP或所述第二上行载波中的一个上行BWP。
  27. 根据权利要求25所述的网络设备，其特征在于，所述终端设备拥有至少两个服务小区，所述第一上行载波和所述第二上行载波属于所述至少两个服务小区中的一个服务小区；
    所述第一指示域用于指示所述至少两个服务小区中的一个服务小区中的一个上行载波。
  28. 根据权利要求24至27中任一所述的网络设备，其特征在于，所述DCI中包括第二指示域，所述第二指示域用于指示所述终端设备在所述第一上行载波或所述第二上行载波上向所述网络设备发送上行信号的频率资源；第三比特数与第四比特数相等，所述第三比特数为所述DCI指示所述终端设备在第一上行载波上向所述网络设备发送上行信号时所述第二指示域的比特数，所述第四比特数为所述DCI指示所述终端设备在第二上行载波上向所述网络设备发送上行信号时所述第二指示域的比特数。
  29. 根据权利要求25至28任一所述的网络设备，其特征在于，所述第一消息为广播消息或系统消息，所述DCI为回退DCI。
  30. 根据权利要求25至29中任一所述的网络设备，其特征在于，所述第一指示域为小区公共的指示域，且所述第一指示域为1比特的指示域；所述第一指示域的状态为0时，指示的上行载波为新空口时分双工NR TDD上行载波，所述第一指示域的状态为1时，指示的上行载波为上行增补SUL载波。
  31. 一种计算机可读存储介质，其特征在于，所述存储介质存储有指令，当所述指令在计算机上运行时，使得计算机实现执行上述权利要求1至15中任一项所述的通信方法。
  32. 一种计算机程序产品，其特征在于，所述计算机程序产品包含指令，当所述指令在计算机上运行时，使得计算机执行权利要求1至15中任一项所述的通信方法。
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