WO2019096131A1 - Procédé, dispositif et système d'indication et de détermination de ressources de domaine temporel - Google Patents

Procédé, dispositif et système d'indication et de détermination de ressources de domaine temporel Download PDF

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Publication number
WO2019096131A1
WO2019096131A1 PCT/CN2018/115257 CN2018115257W WO2019096131A1 WO 2019096131 A1 WO2019096131 A1 WO 2019096131A1 CN 2018115257 W CN2018115257 W CN 2018115257W WO 2019096131 A1 WO2019096131 A1 WO 2019096131A1
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WIPO (PCT)
Prior art keywords
domain resource
frequency domain
downlink
uplink
terminal device
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PCT/CN2018/115257
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English (en)
Chinese (zh)
Inventor
马小骏
张弛
王亚飞
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华为技术有限公司
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Publication of WO2019096131A1 publication Critical patent/WO2019096131A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a method, apparatus, and system for indicating and determining time domain resources.
  • FDD frequency division duplex
  • TDD time division duplex
  • the concept of unknown resources is introduced.
  • the method for determining unknown time domain resources is different.
  • the communication modes in different duplex modes are configured on the network device and the terminal device in the prior art.
  • the terminal device determines to determine the unknown time domain resource by using the communication mode in the corresponding duplex mode by adding the indication information to the terminal device.
  • data transmission between the network device and the terminal device is implemented, which increases the signaling overhead and the complexity of the network device configuration.
  • the embodiments of the present application provide a method, an apparatus, and a system for indicating and determining a time domain resource, which are beneficial to reducing signaling overhead and network device configuration complexity.
  • an embodiment of the present application provides a method for determining a time domain resource, including:
  • the terminal device receives the indication information sent by the network device, and determines an unknown time domain resource in the time slot according to the indication information and the frequency domain resource configuration information, where the indication information is used to indicate the format of the time slot.
  • the terminal device can determine the unknown time domain resource in the time slot according to the indication information and the frequency domain resource configuration information, thereby facilitating the reduction of the information compared with the prior art by adding the indication information to indicate the duplex mode.
  • the format of the time slot is used to indicate the number of uplink symbols and the number of downlink symbols; or, the format of the time slot is used to indicate the number and location of the uplink symbols, and the number of downlink symbols. And location; or, the format of the time slot is used to indicate the number and/or location of unknown symbols. In the above manner, the signaling overhead of the indication information is reduced.
  • the indication information is an index number, and the index number corresponds to the format of the time slot.
  • the terminal device may determine the unknown time domain resource according to the indication information and the frequency domain resource configuration information in the following manner:
  • the terminal device determines that the unknown time domain resource is a symbol other than the uplink symbol and the downlink symbol in the time slot;
  • the uplink frequency domain resource is a frequency domain resource allocated by the network device to the terminal device for transmitting uplink data
  • the downlink frequency domain resource is a frequency domain resource allocated by the network device to the terminal device for transmitting downlink data.
  • center frequency of the uplink frequency domain resource and the center frequency of the downlink frequency domain resource overlap, that is, the center frequency of the uplink frequency domain resource and the center frequency of the downlink frequency domain resource are the same.
  • the terminal device determines that the unknown frequency domain resource is a frequency domain resource with a larger bandwidth in the uplink frequency domain resource and the downlink frequency domain resource.
  • the terminal device may also determine the unknown time domain resource according to the indication information and the frequency domain resource configuration information in the following manner:
  • the terminal device determines that the unknown time domain resource is a symbol and a time slot except the uplink symbol in the time slot. a symbol obtained after the symbols other than the descending symbols are taken as a union;
  • the uplink frequency domain resource is a frequency domain resource allocated by the network device to the terminal device for transmitting uplink data
  • the downlink frequency domain resource is a frequency domain resource allocated by the network device to the terminal device for transmitting downlink data.
  • center frequency point of the uplink frequency domain resource and the center frequency point of the downlink frequency domain resource do not overlap, that is, the center frequency point of the uplink frequency domain resource and the center frequency point of the downlink frequency domain resource are different.
  • the terminal device determines that the unknown frequency domain resource includes an uplink frequency domain resource corresponding to a symbol other than the uplink symbol in the time slot and/or a downlink frequency domain resource corresponding to a symbol other than the downlink symbol in the time slot.
  • the terminal device determines that the unknown frequency domain resource is a frequency domain resource obtained by combining the uplink frequency domain resource and the downlink frequency domain resource; when the uplink symbol is When the time domain resource is unknown, the terminal device determines that the unknown frequency domain resource is the downlink frequency domain resource; when the downlink symbol is the unknown time domain resource, the terminal device determines that the unknown frequency domain resource is the uplink frequency domain resource.
  • the embodiment of the present application provides a method for indicating a time domain resource, including:
  • the network device sends indication information to the terminal device, where the indication information is used to indicate a format of the time slot; and the network device sends the frequency domain resource configuration information to the terminal device.
  • the network device can send the indication information and the frequency domain resource configuration information to the terminal device, so that the terminal device can determine the unknown time domain resource in the time slot according to the indication information and the frequency domain resource configuration information, thereby increasing the indication information in the prior art. Compared with the duplex mode, it helps to reduce the signaling overhead and the complexity of the network device configuration.
  • the format of the time slot is used to indicate the number of uplink symbols and the number of downlink symbols; or, the format of the time slot is used to indicate the number and location of the uplink symbols, and the number of downlink symbols. And location; or, the format of the time slot is used to indicate the number and/or location of unknown symbols. In the above manner, the signaling overhead of the indication information is reduced.
  • the indication information is an index number, and the index number corresponds to the format of the time slot.
  • the frequency domain resource configuration information indicates that the center frequency of the uplink frequency domain resource coincides with the center frequency of the downlink frequency domain resource, where the uplink frequency domain resource is allocated to the terminal device for transmitting the uplink.
  • the frequency domain resource of the data, the downlink frequency domain resource is a frequency domain resource allocated by the network device to the terminal device for transmitting downlink data.
  • the frequency domain resource configuration information indicates that the center frequency of the uplink frequency domain resource does not coincide with the center frequency of the downlink frequency domain resource, wherein the uplink frequency domain resource is allocated to the terminal device for transmission by the network device.
  • the frequency domain resource of the uplink data, the downlink frequency domain resource is a frequency domain resource allocated by the network device to the terminal device for transmitting downlink data.
  • the communication device provided by the embodiment of the present application may be a terminal device or a chip in the terminal device.
  • the communication device has the functionality to implement the first aspect and the technical solutions of each of the possible aspects of the first aspect. This function can be implemented in hardware or in hardware by executing the corresponding software.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the communication device comprises a processing unit and a communication unit
  • the processing unit may for example be a processor
  • the communication unit may for example be a transceiver
  • the transceiver may comprise a radio frequency circuit.
  • the communication unit is configured to receive indication information sent by the network device, where the indication information is used to indicate a format of the time slot, and the processing unit determines the unknown time domain resource in the time slot according to the indication information and the frequency domain resource configuration information.
  • the communication device comprises a processor and a memory, wherein the memory is for storing a program, and the processor is for calling a program stored in the memory to implement the first aspect and any one of the possible designs of the first aspect A method of determining time domain resources.
  • the processor can transmit or receive data through an input/output interface, a pin or a circuit.
  • the memory can be a register, a cache, etc. within the chip.
  • the memory may also be a memory unit located outside the chip in the terminal device, such as a read-only memory (ROM), other types of static storage devices that can store static information and instructions, and random access memory (random Access memory, RAM), etc.
  • the processor mentioned in any of the above may be a general central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more An integrated circuit for controlling a program for performing the method of determining a time domain resource of any of the above first aspect or any of the first aspects.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • the communication device provided by the embodiment of the present application may be a network device, or may be a chip in the network device.
  • the communication device has the function of realizing the technical solutions of the above-mentioned second aspect and the respective possible designs of the second aspect. This function can be implemented in hardware or in hardware by executing the corresponding software.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the communication device comprises a processing unit and a communication unit
  • the processing unit may be, for example, a processor
  • the communication unit may be, for example, a communication interface.
  • the processor and the communication interface may be through an optical fiber or a twisted pair.
  • the communication unit may also be a transceiver.
  • the transceiver may include a radio frequency circuit.
  • the processor and the transceiver may be connected by wireless means such as wireless fidelity (WIFI).
  • WIFI wireless fidelity
  • the processing unit is configured to generate indication information and frequency domain resource configuration information, where the indication information is used to indicate a format of the time slot, and the communication unit is configured to send the indication information to the terminal device, and send the frequency domain to the terminal device.
  • Resource configuration information is used to indicate a format of the time slot.
  • the communication device includes a processor and a memory, wherein the memory is for storing a program, and the processor is configured to call a program stored in the memory to implement the second aspect and any one of the possible designs of the second aspect.
  • a method of indicating a time domain resource can transmit or receive data through an input/output interface, a pin or a circuit.
  • the memory can be a register, a cache, etc. within the chip.
  • the memory can also be a memory unit external to the chip within the network device, such as a ROM, other types of static storage devices that can store static information and instructions, RAM, and the like.
  • the processor mentioned in any of the above may be a general-purpose CPU, a microprocessor, a specific ASIC, or one or more instructions for controlling the execution of any of the above second aspect or the second aspect.
  • a method of time domain resource method for an integrated circuit may be a general-purpose CPU, a microprocessor, a specific ASIC, or one or more instructions for controlling the execution of any of the above second aspect or the second aspect.
  • the embodiment of the present application further provides a computer readable storage medium storing a program, when the program is run on a computer, causing the computer to execute the method described in the above aspects.
  • the present application also provides a computer program product comprising a program, which when executed on a computer, causes the computer to perform the method described in the above aspects.
  • the embodiment of the present application further provides a communication system, including the communication device of any one of the third aspect or the third aspect, or the communication device of any one of the fourth aspect or the fourth aspect. .
  • FIG. 1 is a schematic diagram of a communication architecture of an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a method for determining a time domain resource according to an embodiment of the present application
  • 3a and 3b are schematic diagrams showing the format of a time slot according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a center frequency point of a frequency domain resource according to an embodiment of the present application.
  • 5a and 5b are schematic diagrams of unknown time-frequency resources according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of an unknown time-frequency resource according to an embodiment of the present application.
  • Figure 7 is a schematic diagram of an embodiment GP of the present application.
  • 8a and 8b are schematic diagrams showing the format of a time slot according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of a communication apparatus according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of a communication apparatus according to an embodiment of the present application.
  • FIG. 11 is a schematic diagram of a communication device according to an embodiment of the present application.
  • FIG. 12 is a schematic diagram of a communication apparatus according to an embodiment of the present application.
  • FIG. 13 is a schematic diagram of a communication system according to an embodiment of the present application.
  • the network device configures the uplink frequency domain resource and the downlink frequency domain resource for the terminal device respectively, which is a paired spectrum (paired spectrum), and the terminal device Data can be transmitted on both the uplink frequency domain resource and the downlink frequency domain resource without indicating the time domain resource transmission state.
  • the specific time domain resource transmission state refers to whether the uplink data or the downlink data is transmitted on the time domain resource, or The data is not transmitted, such as for uplink and downlink handover.
  • the terminal device uses the uplink frequency domain resource or the time domain resource whose downlink frequency domain resource is not used for transmitting data as the unknown time domain resource.
  • the network device is The terminal device allocates a frequency domain resource, which is an unpaired spectrum, wherein the frequency domain resource can be used for transmitting uplink data or for transmitting downlink data, and specifically transmitting uplink data or downlink data, or not transmitting data. It is related to the transmission status on the time domain resource.
  • the TDD passes the uplink and downlink configuration as shown in Table 1. Table indicating a transmission status on a time domain resource, where D denotes the subframe used for downlink data transmission, U denotes the subframe used for uplink transmission of data, S denotes a special subframe.
  • the terminal device can receive downlink data in the 0th subframe and transmit uplink data in the 2nd subframe on the frequency domain resource allocated by the network device, in the first sub-subframe.
  • the uplink and downlink are switched on the frame.
  • the terminal device determines the special subframe according to the uplink and downlink configuration index indicated by the network device, where the guard interval (GP) in the special subframe may be equivalent to the unknown time domain.
  • GP guard interval
  • the manner in which the network device configures the frequency domain resources for the terminal device is different, and the manner in which the terminal device determines the unknown time domain resources is different.
  • the terminal device and the network device support both TDD and FDD.
  • the network device causes the terminal device to determine which duplex mode to use for communication by transmitting additional indication information to the terminal device, thereby causing the terminal device to determine
  • the corresponding duplex mode further determines the unknown time domain resource on the time domain resource, thereby implementing data transmission between the network device and the terminal device, but the above technical solution increases the signaling overhead and the complexity of the network device configuration.
  • the embodiment of the present application provides a method for determining a time domain resource, so that the terminal device can determine an unknown frequency domain resource according to the indication information and the frequency domain resource configuration information, where the indication information is used to indicate a time slot.
  • the format compared with the above technical solution, does not need to add additional signaling to indicate the duplex mode adopted by the terminal device, which helps to reduce the signaling overhead and the complexity of the network device configuration.
  • the frequency domain resource is a part of a frequency band allocated to the terminal device for the data transmission.
  • the frequency domain resource may be a component carrier (CC) or a bandwidth part (bandwidth part,
  • the BWP is also a carrier band or the like, which is not limited in this embodiment of the present application.
  • the BWP may be a continuous frequency domain resource or a discontinuous frequency domain resource.
  • the frequency domain resource includes an uplink frequency domain resource and a downlink frequency domain resource.
  • the uplink frequency domain resource is a frequency domain resource configured by the network device to the terminal device for transmitting uplink data
  • the downlink frequency domain resource is configured for the network device to the terminal.
  • the device is used to transmit the frequency domain resources of the downlink data.
  • the uplink data involved in the embodiment of the present application refers to data sent by the terminal device to the network device
  • the downlink data refers to data sent by the network device to the terminal device.
  • the frequency domain resource configuration information is used to indicate an uplink frequency domain resource and a downlink frequency domain resource used when the terminal device and the network device transmit data
  • the specific frequency domain resource configuration information may include a subcarrier spacing (SCS). Parameters, bandwidth parameters, frequency domain location parameters and other information.
  • SCS subcarrier spacing
  • the frequency domain resource configuration information may be referred to as BWP configuration information.
  • the frequency domain resource configuration information may indicate whether a center frequency point of the uplink frequency domain resource and a center frequency point of the downlink frequency domain resource are coincident, and the terminal device may determine the unknown time domain resource by using the information.
  • the uplink frequency domain resource is a frequency domain resource allocated by the network device to the terminal device for transmitting uplink data
  • the downlink frequency domain resource is a frequency domain allocated by the network device to the terminal device for transmitting downlink data. Resources.
  • a slot is a unit in the time domain of a resource for transmitting data.
  • a slot usually contains a plurality of symbols/chips, and each symbol/chip may have the same or different transmission directions.
  • the format of the time slot which is also called a slot format, is used to indicate the transmission status of the terminal device on the time domain resource.
  • one time slot includes 14 symbols, and the format of the time slot defines each The content carried by the symbol, such as the first symbol is used to carry uplink data, and the second symbol is used for unknown time domain resources.
  • the unknown time domain resource also known as the unknown time domain resource, is not used for receiving and transmitting data for the indicated terminal device, and can be used for internal processing time of the terminal device, including switching for uplink and downlink.
  • the unknown time domain resource may be used for uplink and downlink handover, and may also be used for communication with a terminal device or a base station other than the indicated terminal device, for example, an unknown time domain resource may be used for inter-base station measurement or other. business.
  • the unknown time domain resource may include an unknown symbol, and the unknown symbol may be referred to as an unknown symbol.
  • the unknown time domain resource is referred to as unknown time domain resource
  • the unknown symbol is called unknown symbol
  • the unknown frequency domain resource is called unknown frequency domain resource.
  • Unknown time-frequency resources are called unknown time-frequency resources.
  • the unknown time domain resource is the unknown time-frequency resource in the time domain dimension
  • the unknown frequency domain resource is the unknown time-frequency resource in the frequency domain dimension
  • the unknown frequency domain resource corresponds to the unknown time domain resource.
  • the network architecture is the 5th Generation mobile communication technology (5G) network architecture.
  • the 5G architecture may include a terminal device, a radio access network (RAN), an access management function (AMF) entity, a session management function (SMF) entity, and a user plane function.
  • RAN radio access network
  • AMF access management function
  • SMF session management function
  • UPF user plane function
  • UDM unified data management
  • AUSF authentication service function
  • DN data network
  • the 5G network architecture may include an authentication Credential Repository and Processing Function (ARPF) entity and a security anchor function (SEAF) in addition to the network element as shown in FIG. Entity, etc.
  • ARPF authentication Credential Repository and Processing Function
  • SEAF security anchor function
  • the main function of the RAN is to control the terminal device to access the mobile communication network through wireless.
  • the RAN is part of a mobile communication system. It implements a wireless access technology. Conceptually, it resides between devices (such as mobile phones, a computer, or any remote controller) and provides connectivity to its core network.
  • the RAN includes, but is not limited to, the following devices: (g nodeB, gNB) in 5G, home base station (for example, home evolved node B, or home node B, HNB), base band unit (BBU), and the like.
  • the AMF entity is responsible for access management and mobility management of the terminal equipment.
  • the SMF entity is responsible for session management, such as user session establishment.
  • the UPF entity is a functional network element of the user plane and is mainly responsible for connecting to an external network.
  • the DN is responsible for providing services for the terminal devices. For example, some DNs provide Internet access for terminal devices, and other DNs provide SMS functions for terminal devices.
  • the AUSF entity has an authentication service function for terminating the authentication function of the SEAF request.
  • the UDM entity can store subscription information of the terminal device.
  • the ARPF entity has an authentication credential storage and processing function for storing a long-term authentication credential of the UE, such as a permanent key K. In 5G, the functionality of ARPF can be incorporated into UDM entities.
  • the SEAF entity is used to complete the authentication process for the terminal device. In 5G, the function of the SEAF can be incorporated into the AMF entity.
  • a terminal device is a device having a wireless transceiving function, which may be a device for providing voice and/or data connectivity to a user, a handheld device having a wireless connection function, or other processing device connected to a wireless modem.
  • the terminal equipment can be deployed on land, indoors or outdoors, hand-held 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, satellites, etc.).
  • the terminal device may be a user equipment (UE), a mobile phone, a tablet, a computer with wireless transceiver function, a virtual reality (VR) terminal, and augmented reality.
  • AR AR
  • wireless terminal in industrial control wireless terminal in self driving, wireless terminal in remote medical, wireless terminal in smart grid, A wireless terminal in a transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, and the like.
  • the network device in the embodiment of the present application may be a device in the RAN in the network architecture shown in FIG. 1 , such as a gNB, and the terminal device involved in the embodiment of the present application may be a network as shown in FIG. 1 .
  • Terminal devices in the architecture may be a device in the RAN in the network architecture shown in FIG. 1 , such as a gNB, and the terminal device involved in the embodiment of the present application may be a network as shown in FIG. 1 . Terminal devices in the architecture.
  • the method for determining the time domain resource in the embodiment of the present application is specifically introduced based on the communication architecture shown in FIG. 1 .
  • the method for determining a time domain resource in the embodiment of the present application includes:
  • Step 201 The network device sends indication information to the terminal device, where the indication information is used for a format of a time slot.
  • the indication information in the embodiment of the present application may be sent to the terminal device through physical layer signaling, such as layer 1 (L1) signaling, or through layer 2 (L2) signaling, such as media access control.
  • L1 layer 1
  • L2 layer 2
  • Control MAC
  • L3 layer 3
  • RRC radio resource control
  • the other signaling is sent to the terminal device, which is not limited.
  • the format indicated by the indication information in the embodiment of the present application may be a format of N time slots in a certain time period, or may be a format of a time slot used by the current terminal device to transmit data
  • the format of the time slot indicated by the specific indication information is the format of the time slots, which may be determined by the terminal device according to the pre-configured policy, where the pre-configured policy may be sent to the terminal device by the network device, or may be the terminal.
  • the device is configured at the factory.
  • the indication information in the embodiment of the present application may be slot format information (SFI), for example, the slot format information includes status information transmitted on each symbol in the slot.
  • SFI slot format information
  • the indication information in the embodiment of the present application may be an index number, where the index number corresponds to the format of the time slot, or, optionally, the indication information directly indicates the format of the time slot.
  • the format of the time slot includes the number of uplink symbols and the number of downlink symbols, where the position of the uplink symbol and the position of the downlink symbol are pre-configured, or the determining rule of the position of the uplink symbol and the position of the downlink symbol is pre-configured;
  • the format of the time slot includes the number and location of the uplink symbols, and the number and location of the downlink symbols; for example, the format of the time slot includes the location and/or the number of unknown symbols; and, for example, the format of the time slot.
  • the number of uplink symbols, the number of downlink symbols, and the number of unknown symbols, where the position of the uplink symbol, the downlink symbol, and the unknown symbol are pre-configured, or the position of the uplink symbol, the location of the downlink symbol, and the unknown symbol.
  • the determining rule of the location is pre-configured; the uplink symbol is used to carry the uplink data, the downlink symbol is used to carry the downlink data, and the unknown may be the unknown time domain resource.
  • the indication information indicates an index number in the correspondence table of the index number and the format of the slot, where the number of the uplink symbols is included in the format of the slot.
  • the number of downlink symbols is an example.
  • the correspondence table between the index number and the format of the time slot can be as shown in Table 2.
  • the determining rule of the position of the uplink symbol and the position of the downlink symbol may be pre-configured such that the position of the downlink symbol is consecutively N1 consecutively from the first symbol position in the slot, and the position of the uplink symbol is from the slot.
  • the position of the last symbol starts to advance by a number of N2, where N1 is the number of downlink symbols included in the format of the slot, and N1 is the number of uplink symbols included in the format of the slot.
  • the determination rule of the position of the uplink symbol and the position of the downlink symbol can be pre-configured as the above rule, if one slot includes 14 symbols, when the indication information is index number 1, the format of the slot is as shown in FIG. 3a.
  • the first 12 symbols are the down symbols and the 14th symbols are the up symbols.
  • the determining rule of the position of the uplink symbol and the position of the downlink symbol may be pre-configured such that the position of the downlink symbol is consecutively N1 consecutively from the first symbol position in the slot, and the position of the uplink symbol ends from the downlink symbol.
  • the position of the next symbol of the position starts to be consecutively N2, where N1 is the number of downlink symbols included in the format of the slot, and N1 is the number of uplink symbols included in the format of the slot.
  • the determination rule of the position of the uplink symbol and the position of the downlink symbol may be pre-configured as the above rule. If a time slot includes 14 symbols, when the indication information is index number 1, the format of the time slot is as shown in FIG. 3b. The first 12 symbols are the down symbols and the 13th symbols are the up symbols.
  • the determining rule of the position of the uplink symbol and the position of the downlink symbol may also be pre-configured such that the position of the downlink symbol is consecutively N1 consecutively from the first symbol position in the slot, and the starting position of the uplink symbol is The downlink symbol end position is separated by one symbol, where N1 is the number of downlink symbols included in the format of the slot, and N1 is the number of uplink symbols included in the format of the slot.
  • the determination rule of the position of the uplink symbol and the position of the downlink symbol can be pre-configured as the above rule, if one slot includes 14 symbols, when the indication information is index number 1, the format of the slot is as shown in FIG. 3a.
  • the first 12 symbols are downlink symbols
  • the 14th symbol is an uplink symbol, wherein the end position of the downlink symbol is separated from the start position of the uplink symbol by one symbol.
  • the correspondence table between the index number and the format of the time slot may also be as shown in Table 3.
  • the format of the time slot includes the number of uplink symbols, the number of downlink symbols, and the number of unknown symbols.
  • the correspondence table between the index number and the format of the time slot may also be as shown in Table 4, wherein the format of the time slot includes the number of uplink symbols, the number of downlink symbols, and the number of unknown symbols.
  • the correspondence table between the index number and the format of the time slot may also be as shown in Table 5, wherein the format of the time slot includes the position of the uplink symbol and the position of the downlink symbol.
  • the 0th to the 11th positions in the format of the slot corresponding to the index number 1 are downlink symbols, and the 13th position is an uplink symbol.
  • the format of the time slot includes the number of unknown symbols, or the format of the time slot includes the location of the unknown symbol, or the format of the time slot includes the number and location of the unknown symbol, or the format of the time slot includes the position of the uplink symbol and
  • the format of the downlink symbol is the same as that of the downlink symbol, and the format of the slot is similar to the number of the downlink symbol, and is not described here.
  • Step 202 The terminal device determines, according to the indication information and the frequency domain resource configuration information, the unknown time domain resource in the time slot.
  • the frequency domain resource configuration information may be sent to the terminal device for the network device.
  • the network device may send the device to the terminal device by using high layer signaling, such as RRC signaling.
  • the terminal device determines that the unknown time domain resource is other than the uplink symbol and the downlink symbol in the time slot. symbol.
  • the frequency domain resource configuration information may directly indicate that the center frequency of the uplink frequency domain resource and the center frequency of the downlink frequency domain resource overlap, or the frequency domain resource configuration information includes when the network device configures the frequency domain resource for the terminal device.
  • the configuration parameter such as the SCS, the bandwidth parameter (such as the bandwidth of the uplink frequency domain resource and the bandwidth of the downlink frequency domain resource), the frequency domain location parameter, etc.
  • the terminal device may determine, according to the parameters, the frequency domain resource configuration information, indicating the uplink frequency domain resource.
  • the center frequency of the center frequency and the downlink frequency domain coincide.
  • the frequency domain resource is used as the BWP. As shown in FIG.
  • the frequency domain resource configured by the network device for the terminal device is an unpaired spectrum.
  • the terminal device may further determine that the unknown frequency domain resource is a frequency domain resource with a larger bandwidth in the uplink frequency domain resource and the downlink frequency domain resource.
  • the index number 1 corresponds to 12 downlink symbols and the number of uplink symbols is 1.
  • the format of the slot is as shown in FIG. 3a. If the bandwidth of the downlink frequency domain resource is greater than the bandwidth of the uplink frequency domain resource, the unknown frequency domain resource is the downlink frequency domain resource. Further, the unknown time-frequency resource may be as shown in FIG. 5a, including the 13th symbol and the downlink frequency domain resource. The time-frequency resources that are composed.
  • the unknown time-frequency resource in the embodiment of the present application may be a shaded area as shown in FIG. 5b, including a time-frequency resource composed of a thirteenth symbol and a downlink frequency domain resource, and composed of a 14th symbol and other frequency domain resources.
  • the unknown time domain resource is the 13th symbol and the 14th symbol
  • the unknown frequency domain resource is the downlink frequency domain resource and other frequency domain resources.
  • the unknown frequency domain resource may be an uplink frequency domain resource or a downlink frequency domain resource.
  • the terminal device determines that the unknown time domain resource is a symbol other than the uplink symbol in the time slot.
  • a symbol obtained after taking a union of symbols other than the down symbol in the slot Taking the format of the slot shown in FIG. 3a as an example, symbols other than the uplink symbol in the slot are the first symbol to the thirteenth symbol, and symbols other than the downlink symbol in the slot are the 13th and 14th symbols.
  • the frequency domain resource configuration information indicates that the center frequency point of the uplink frequency domain resource and the center frequency point of the downlink frequency domain resource do not overlap, and the frequency domain resource configuration information indicates the center frequency of the uplink frequency domain resource.
  • the manner in which the center frequency of the point and the downlink frequency domain resources coincide is similar, and will not be described here. It should be understood that when the center frequency of the uplink frequency domain resource and the center frequency of the downlink frequency domain resource do not overlap, as shown in FIG. 4, (f1+BW1/2) ⁇ (f2+BW2/2).
  • the frequency domain resource configured by the network device for the terminal device is a paired spectrum.
  • the terminal device determines that the unknown frequency domain resource includes the downlink frequency domain resource corresponding to the symbol other than the uplink symbol in the time slot, and/or the downlink frequency domain resource corresponding to the symbol except the downlink symbol in the time slot.
  • the terminal device determines that the unknown frequency domain resource is a frequency domain resource obtained by combining the uplink frequency domain resource and the downlink frequency domain resource; When the uplink symbol in the time slot is the unknown time domain resource, the terminal device determines that the unknown frequency domain resource is the downlink frequency domain resource. When the downlink symbol in the time slot is the unknown frequency domain resource, the terminal device determines that the unknown frequency domain resource is the uplink frequency domain resource.
  • the format of the corresponding time slot in the index number 1 in Table 2 is taken as an example. If the index number is 1, the format of the corresponding time slot is as shown in FIG. 3a, and the uplink frequency domain resource and the downlink frequency domain resource are In the case of the paired spectrum, in the case where the first symbol to the twelfth symbol are unknown time-frequency resources, the uplink frequency domain resource is an unknown frequency domain resource; and for the first symbol to the twelfth symbol is a downlink symbol. In the case that the downlink frequency domain resource is used for transmitting downlink data, the 13th symbol is neither an uplink symbol nor a downlink symbol.
  • the uplink frequency domain resource and the downlink frequency domain are used.
  • the frequency domain resource obtained by the union of resources is unknown frequency domain resource; when the 14th symbol is unknown time-frequency resource, the downlink frequency domain resource is unknown frequency domain resource; and for the 14th symbol is the uplink symbol
  • the uplink frequency domain resource is used to transmit uplink data.
  • the unknown time-frequency resource may be a shadow area as shown in FIG. 6, including a time frequency composed of the 13th and 14th symbols in the time slot and the downlink frequency domain resources.
  • the network device when the mapping relationship between the index number and the time slot format is as shown in Table 2, the network device is configured as the uplink frequency domain resource and the downlink frequency domain resource configured for the terminal device.
  • any index number can be selected from Table 2, indicating to the terminal device that after receiving the index number sent by the network device, the terminal device further determines the unknown according to the index number and the frequency domain resource configuration information.
  • the manner of determining the unknown time domain resource and the unknown frequency domain resource is similar to the method of determining the unknown time domain resource and the unknown frequency domain resource in FIG. 2 , and is not described here.
  • the uplink frequency domain resource and the downlink frequency domain configured by the network device are terminal devices.
  • the resource is an unpaired spectrum
  • the sum of the number of downlink symbols, the number of uplink symbols, and the number of unknown symbols is not greater than the total number of symbols included in one slot. 14 Therefore, the network device is configured for the terminal device.
  • the uplink frequency domain resource and the downlink frequency domain resource are unpaired spectrum
  • the index number is selected from Table 3
  • the sum of the number of downlink symbols, the number of uplink symbols, and the number of unknown symbols needs to be no more than one.
  • the sum of the number of the number and the unknown symbol is not more than twice the total number of symbols included in one slot (when 14 symbols are included in one slot, the slot is The number of symbols included in the signal is 28), that is, when the uplink frequency domain resource and the downlink frequency domain resource configured for the terminal device are paired spectrum, when selecting the index number from Table 3, the downlink symbol needs to be selected.
  • the sum of the number, the number of uplink symbols, and the number of unknown symbols is not more than the index number of the format of the time slot twice the total number of symbols included in one slot.
  • the uplink frequency domain resource and the downlink frequency domain resource configured by the network device for the terminal device are unpaired spectrum
  • the downlink frequency The unknown symbol corresponding to the domain resource is the same as the unknown symbol corresponding to the uplink frequency domain resource, and the sum of the number of downlink symbols, the number of uplink symbols, and the number of unknown symbols is not greater than the symbol included in one slot.
  • the network device selects the index number from the table 4 to indicate the terminal device, the network device needs to select and meet the downlink frequency domain resource.
  • the sum of the number of unknown symbols and the number of unknown symbols corresponding to the uplink frequency domain resource, and the sum of the number of downlink symbols, the number of uplink symbols, and the number of unknown symbols corresponding to the downlink frequency domain resource is not greater than The index number of the format of the slot in the total number of symbols included in one slot.
  • the network device may select any index number from the index number shown in Table 4 to indicate the terminal device, and the terminal device according to the terminal device
  • the index number and the frequency domain resource configuration information determine the unknown time-frequency resource.
  • the method for determining the unknown time-frequency resource is similar to the method for determining the unknown time-frequency resource in FIG. 2, and is not described here.
  • the unknown time domain resource in the time slot can be determined according to the indication information and the frequency domain resource configuration information.
  • no additional signaling is needed to indicate to the terminal device that the duplex used by the network device is indicated. This helps reduce signaling overhead and helps reduce the complexity of network device configuration.
  • the terminal device since the terminal device may only be used for transmitting uplink data or downlink data at a certain time point, in this case, the terminal device has an uplink and downlink state switching, and usually the terminal device needs a transition time. State switching, which can be referred to as a time switching point, for switching from uplink to downlink, or switching from downlink to uplink.
  • a GP is usually set in the format of the time slot. In order to simplify the implementation, the GP is usually configured between the downlink symbol and the uplink symbol, as shown in FIG. The GP may be configured in the unknown time domain resource between the downlink symbol and the uplink symbol. Therefore, the unknown time domain resource in the embodiment of the present application needs to include the time domain resource between the downlink symbol and the uplink symbol.
  • the position of the downlink symbol in the format of the slot indicated by the pre-configured indication information is
  • the downlink symbol can be configured from the first symbol position, and the uplink symbol can be configured from the last symbol.
  • the unknown time-frequency resource shown in FIG. 5a is taken as an example, wherein the GP can be configured on the 13th symbol;
  • the unknown time-frequency resource shown in FIG. 6 is taken as an example, and the GP is also usually configured on the 13th symbol.
  • two GPs may be set in the format of the time slot.
  • the indication information is indicated.
  • the time slot is divided into two parts, the first part and the second part, to indicate that the information is an index number, and the first part includes the same number of symbols and the second part includes the same number of symbols.
  • the correspondence between the index number and the format of the time slot can be as shown in Table 6.
  • the first part includes 7 symbols
  • the second part includes 7 symbols
  • the first symbol position of the part starts to configure the downlink symbol backward
  • the uplink symbol is configured from the last symbol of the part.
  • the corresponding slot format can be as shown in FIG. 8a.
  • the position of the unknown part in the first part is located between the downlink symbol and the uplink symbol
  • the position of the unknown symbol in the second part is located between the downlink symbol and the uplink symbol, so the network is obtained by the above manner.
  • the device no longer needs to send an additional signaling indicator GP to the terminal device.
  • the correspondence between the index number and the format of the time slot can also be as shown in Table 7.
  • the corresponding slot format can be as shown in FIG. 8b, where the unknown symbol is divided into two parts, which can be seen from the format of the time slot shown in FIG. 8b.
  • the position of the unknown symbol in the first part is located between the downlink symbol and the uplink symbol
  • the position of the unknown symbol in the second part is located between the downlink symbol and the uplink symbol.
  • three or more GPs may also be set in the format of the time slot in the above manner, and details are not described herein again.
  • each of the foregoing network elements includes a hardware structure and/or a software module corresponding to each function.
  • the present application can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.
  • FIG. 9 a schematic diagram of a communication device provided by the present application, which may be a terminal device or a chip or system on a terminal device, may perform the implementation shown in FIG. 2 .
  • the communication device 900 includes at least one processor 910 and a memory 930.
  • the memory 930 is used to store programs, and may be a ROM or other types of static storage devices that can store static information and instructions, such as RAM or other types of dynamic storage devices that can store information and instructions, or may be electrically erasable or programmable. Electrostatic erasable programmabler-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc., disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store a desired program in the form of an instruction or data structure and that can be accessed by a computer, but is not limited thereto.
  • the memory 930 can exist independently and be coupled to the processor 910. Memory 930 can also be integrated with processor 910.
  • the processor 910 is configured to execute the program in the memory 930 to implement the steps performed by the terminal device in the method for determining the time domain resource in the embodiment of the present application.
  • processor 910 can be a general purpose CPU, a microprocessor, a particular ASIC, or one or more integrated circuits for controlling the execution of the program of the present application.
  • processor 910 may include one or more CPUs, such as CPU0 and CPU1 in FIG.
  • communication device 900 can include multiple processors, such as processor 910 and processor 911 in FIG.
  • processors may be a single-CPU processor or a multi-core processor, where the processor may refer to one or more devices, circuits, and/or A processing core for processing data, such as computer program instructions.
  • the transceiver 920 as shown in FIG. 9 may be further included for communicating with other devices or communication networks, and the transceiver 920 includes a radio frequency circuit.
  • the processor 910, the transceiver 920, and the memory 930 can be connected through a communication bus in the terminal device.
  • the communication bus can include a path for communicating information between the above units.
  • the processor 910 can transmit or receive data through an input/output interface, a pin or a circuit or the like.
  • a schematic diagram of another communication device in the embodiment of the present application may be a terminal device or a chip or a system on a chip in a terminal device, and may execute the foregoing terminal device in the embodiment shown in FIG. The method of execution.
  • the apparatus includes a processing unit 1001 and a communication unit 1002.
  • the communication unit 1002 is configured to receive indication information that is sent by the network device, where the indication information is used to indicate a format of the time slot.
  • the processing unit 1001 is configured to determine an unknown time domain resource in the time slot according to the indication information and the frequency domain resource configuration information.
  • the format of the time slot is used to indicate the number of uplink symbols and the number of downlink symbols; or, the format of the time slot is used to indicate the number and location of the uplink symbols, and the number and location of the downlink symbols; or The format of the slot is used to indicate the number and/or location of unknown symbols.
  • the indication information is an index number, and the index number corresponds to a format of the time slot.
  • the processing unit 1001 determines the unknown time domain resource according to the indication information and the frequency domain resource configuration information according to the following manner:
  • the processing unit 1001 is configured to determine that the unknown time domain resource is a symbol other than the uplink symbol and the downlink symbol in the time slot. ;
  • the uplink frequency domain resource is a frequency domain resource allocated by the network device to the terminal device for transmitting uplink data
  • the downlink frequency domain resource is a frequency domain resource allocated by the network device to the terminal device for transmitting downlink data.
  • the processing unit 1001 is further configured to determine that the unknown frequency domain resource is a frequency domain resource with a larger bandwidth in the uplink frequency domain resource and the downlink frequency domain resource.
  • the processing unit 1001 is configured to determine an unknown time domain resource according to the indication information and the frequency domain resource configuration information according to the following manner:
  • the processing unit is configured to determine that the unknown time domain resource is a symbol and time interval other than the uplink symbol in the time slot. a symbol obtained by taking a union of symbols other than the down symbol in the slot;
  • the uplink frequency domain resource is a frequency domain resource allocated by the network device to the terminal device for transmitting uplink data
  • the downlink frequency domain resource is a frequency domain resource allocated by the network device to the terminal device for transmitting downlink data.
  • the processing unit 1001 determines that the unknown frequency domain resource includes an uplink frequency domain resource corresponding to a symbol other than the uplink symbol in the time slot, and/or a downlink frequency domain resource corresponding to a symbol other than the downlink symbol in the time slot. .
  • the communication device may be used to implement the steps performed by the terminal device in the method for determining the time domain resource in the embodiment of the present application.
  • the communication device may be used to implement the steps performed by the terminal device in the method for determining the time domain resource in the embodiment of the present application.
  • FIG. 11 a schematic diagram of a communication device provided by the present application, which may be, for example, a chip or a system on a network device or a network device, may perform the implementation as shown in FIG. 2 .
  • the communication device 1100 includes at least one processor 1110 and a memory 1130.
  • the memory 1130 is used to store programs, and may be a ROM or other types of static storage devices such as RAM or other types of dynamic storage devices that can store static information and instructions, or may be EEPROM or CD-ROM. Or other disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), disk storage media or other magnetic storage devices, or can be used to carry or store expectations in the form of instructions or data structures And any other medium that can be accessed by a computer, but is not limited thereto.
  • the memory 1130 can exist independently and be coupled to the processor 1110.
  • the memory 1130 can also be integrated with the processor 1110.
  • the processor 1110 is configured to execute the program in the memory 1130 to implement the steps performed by the network device in the method for indicating the time domain resource in the embodiment of the present application.
  • processor 1110 can be a general purpose CPU, a microprocessor, a particular ASIC, or one or more integrated circuits for controlling the execution of the program of the present application.
  • the processor 1110 may include one or more CPUs, such as CPU0 and CPU1 in FIG.
  • the communication device 1100 may include multiple processors, such as the processor 1110 and the processor 1111 in FIG. Each of these processors may be a single-CPU processor or a multi-core processor, where the processor may refer to one or more devices, circuits, and/or A processing core for processing data, such as computer program instructions.
  • the transceiver 1120 as shown in FIG. 11 may be further included for communicating with other devices or communication networks, and the transceiver 1120 includes a radio frequency circuit.
  • the processor 1110, the transceiver 1120, and the memory 1130 may be connected by a communication bus in the network device.
  • the communication bus can include a path for communicating information between the above units.
  • the processor 1110 can transmit or receive data through an input/output interface, a pin or a circuit or the like.
  • FIG. 12 is a schematic diagram of another communication device according to an embodiment of the present application.
  • the communication device may be a network device or a chip or a system on a chip in a network device, and may execute the network in the embodiment shown in FIG. 2. The method that the device performs.
  • the communication device includes a processing unit 1201 and a communication unit 1202.
  • the processing unit 1201 is configured to generate indication information and frequency domain resource configuration information, where the indication information is used to indicate a format of the time slot, and the communication unit 1202 is configured to send the indication information to the terminal device, and send the frequency domain resource configuration information to the terminal device.
  • the format of the time slot is used to indicate the number of uplink symbols and the number of downlink symbols; or, the format of the time slot is used to indicate the number and location of the uplink symbols, and the number and location of the downlink symbols; or The format of the slot is used to indicate the number and/or location of unknown unknown symbols.
  • the indication information is an index number, and the index number corresponds to a format of the time slot.
  • the frequency domain resource configuration information indicates that the center frequency of the uplink frequency domain resource coincides with the center frequency of the downlink frequency domain resource.
  • the frequency domain resource configuration information indicates that the center frequency of the uplink frequency domain resource does not coincide with the center frequency of the downlink frequency domain resource.
  • the communication device may be used to implement the steps performed by the network device in the method for determining the time domain resource in the embodiment of the present application.
  • the communication device may be used to implement the steps performed by the network device in the method for determining the time domain resource in the embodiment of the present application.
  • the manner in which the communication device shown in FIG. 10 and FIG. 12 is divided into modules is schematic, and only one logical function is divided, and the actual implementation may have another division manner.
  • the communication unit is divided into a receiving unit, a transmitting unit, and the like.
  • the embodiment of the present application further provides a communication system, where the communication system includes a communication device 900 and a communication device 1100.
  • the computer program product includes one or more computer instructions.
  • 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 present application can be provided as a method, apparatus (device), computer readable storage medium, or computer program product.
  • the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware aspects, which are collectively referred to herein as "module” or "system.”
  • 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

La présente invention concerne un procédé, un dispositif et un système permettant d'indiquer et de déterminer des ressources de domaine temporel, se rapportant au domaine technique des communications, le procédé comprenant les étapes suivantes : un dispositif de réseau transmet des informations d'indication à un dispositif terminal; et le dispositif de terminal détermine une ressource de domaine temporel inconnue selon les informations d'indication et les informations de configuration de ressource de domaine de fréquence, les informations d'indication étant utilisées pour indiquer le format d'un intervalle de temps. Au moyen de la solution technique décrite, un dispositif terminal peut déterminer une ressource de domaine temporel inconnue dans un intervalle de temps selon des informations d'indication et des informations de configuration de ressource de domaine de fréquence, ce qui facilite la réduction du surdébit de signalisation et la complexité de la configuration du dispositif de réseau par rapport à une technologie existante qui indique un mode duplex en augmentant les informations d'indication.
PCT/CN2018/115257 2017-11-16 2018-11-13 Procédé, dispositif et système d'indication et de détermination de ressources de domaine temporel WO2019096131A1 (fr)

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