WO2019029741A1 - 一种无线通信方法及装置 - Google Patents

一种无线通信方法及装置 Download PDF

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Publication number
WO2019029741A1
WO2019029741A1 PCT/CN2018/100114 CN2018100114W WO2019029741A1 WO 2019029741 A1 WO2019029741 A1 WO 2019029741A1 CN 2018100114 W CN2018100114 W CN 2018100114W WO 2019029741 A1 WO2019029741 A1 WO 2019029741A1
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WO
WIPO (PCT)
Prior art keywords
time
resource
frequency resource
uplink
scheduling
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2018/100114
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English (en)
French (fr)
Inventor
王亚飞
王轶
张弛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to BR112020002794-4A priority Critical patent/BR112020002794A2/pt
Priority to EP18844534.0A priority patent/EP3661298B1/en
Priority to JP2020529805A priority patent/JP7019914B2/ja
Publication of WO2019029741A1 publication Critical patent/WO2019029741A1/zh
Priority to US16/787,834 priority patent/US11109444B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/08—Upper layer protocols
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • 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
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/26—Resource reservation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • 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

Definitions

  • the present application relates to the field of mobile communications technologies, and in particular, to a wireless communication method and apparatus.
  • Grant free uplink transmission is supported.
  • the Grant free uplink transmission is also called unscheduled or unlicensed uplink transmission, which means that the uplink data transmission does not need to pass through the base station.
  • Scheduling but the terminal itself transmits the uplink data on the time-frequency resources pre-allocated by the base station according to the data arrival situation of the service.
  • the pre-allocated time-frequency resource for example, the transmission resource for the uplink Grant
  • the high-level signaling such as the radio resource control (RRC) signaling
  • RRC radio resource control
  • Configure time resources also called time domain resources
  • a frequency resource also called a frequency domain resource
  • a frequency resource that is, configure a reserved frequency resource for Grant free uplink transmission, that is, reserve a part of the frequency resource allocated to the terminal for Grant free uplink transmission.
  • the present application provides a wireless communication method and apparatus, which are helpful for meeting the low latency and high reliability requirements of certain services of the terminal.
  • a method of wireless communication can be performed by a chip within a terminal or terminal.
  • the method includes: receiving first high layer signaling from a base station, where the first high layer signaling is used to configure a first time resource and a first frequency resource, where the first time resource and the first frequency resource can be used for scheduling Uplink transmission; receiving downlink control information, where the downlink control information is used to indicate a format of a time slot, the format indicating a transmission direction of a symbol in the time slot; wherein an uplink symbol in the time slot is capable Time resource for uplink transmission without scheduling.
  • the receiving base station dynamically allocates time resources that can be used for the uplink transmission of the scheduling by the downlink control information. When the first time resource cannot be used or is not enough, the dynamically allocated time resource can be used to avoid The scheduled uplink transmission helps to meet the low latency and high reliability requirements of certain services of the terminal.
  • the unscheduled uplink transmission may be performed by using all the symbols in the uplink symbols, or only some of the symbols may be used for scheduling. Uplink transmission.
  • the time resource includes a fixed time resource and a flexible time resource.
  • the transmission direction of each symbol in the fixed time resource is semi-statically configured by the base station by using high layer signaling, and the transmission direction of each symbol in the flexible time resource is adopted by the base station.
  • Downstream control information dynamic indication is adopted by the base station.
  • the fixed time resource comprises a fixed uplink symbol, and/or a fixed downlink symbol.
  • the fixed time resource is a time slot
  • the flexible time resource is a time slot
  • the fixed time resource is a subframe
  • the flexible time resource is a subframe
  • one subframe includes one or more time slots.
  • the fixed time resource is a system frame
  • the flexible time resource is a system frame
  • one system frame includes one or more subframes
  • one subframe includes one or more time slots.
  • the time resource includes a reserved resource in addition to the fixed time resource and the flexible time resource, where the reserved resource is not used for downlink transmission and uplink transmission.
  • another wireless communication method is also proposed, which can be performed by a chip in a terminal or a terminal.
  • the method includes: receiving first high-level signaling from a base station, where the first high-level signaling is used to configure a first time resource, where the first time resource can be used for scheduling-free uplink transmission; and receiving downlink control information, where The downlink control information is used to indicate a format of a time slot, where the format indicates a transmission direction of a symbol in the time slot; wherein an uplink symbol in the time slot is a time resource that can be used for uplink transmission without scheduling .
  • the main difference between the wireless communication method and the wireless communication method of the first aspect is that the base station configures the first time resource for the terminal by using the first high layer signaling, and does not need to configure the first high frequency signaling for the first frequency resource.
  • the other parts are implemented in the same way as the first aspect.
  • the wireless communication method is applicable to a scenario in which a base station allocates time resources to a terminal, and when the allocated time resources are insufficient, the time resource can be dynamically added.
  • the first frequency resource from the base station is also received, for example, the first frequency domain resource is indicated by activation signaling of the physical layer.
  • Type 1 The uplink data transmission does not require the Grant information sent by the base station, and is based only on the RRC configuration/reconfiguration information.
  • Type 2 The uplink data transmission does not require the Grant information sent by the base station, and the Grant free transmission needs to be activated/deactivated based on the RRC configuration information and physical layer signaling (for example, L1 signaling).
  • Type 3 The uplink data transmission does not require the Grant information sent by the base station. Based on the RRC configuration/reconfiguration information, the physical layer signaling (eg, L1 signalling) is allowed to modify some parameters of the RRC signaling semi-static configuration, but does not require physical Layer signaling (eg, L1 signalling) activates/deactivates the Grant free transmission.
  • the physical layer signaling eg, L1 signalling
  • the first high-level signaling is used to configure the first time resource and the first frequency resource, where the first time resource and the first frequency resource can be used for the unscheduled uplink transmission.
  • the first high-level signaling is used to configure the first time resource and the first frequency resource, where the first time resource and the first frequency resource can be used for the unscheduled uplink transmission.
  • the first high layer signaling needs to indicate the first time resource, and does not need to indicate the first frequency resource.
  • the first frequency resource it may be indicated by the base station by signaling of the L1 layer.
  • the first high-level signaling needs to indicate the first time resource, and does not need to indicate the first frequency resource.
  • the first frequency resource it may be indicated by the base station by signaling of the L1 layer.
  • the first time resource may be, for example, a fixed uplink symbol in a time slot, that is, the first time resource is a symbol whose transmission direction is fixed to an uplink.
  • the second higher layer signaling from the base station is received, and the second higher layer signaling is used to indicate a set of candidate time resources, the time slots belonging to the set of candidate time resources.
  • the base station indicates, by using the second higher layer signaling, a set of candidate time resources, where the time slot in the set is a candidate time slot used by the terminal for uplink scheduling without scheduling, that is, any time slot in the set may be
  • the uplink transmission used by the terminal for scheduling is also understood to be that if some or all of the symbols in any of the slots in the set are configured as uplink symbols by the base station, the uplink symbols can be used for unscheduled uplink transmission.
  • the set of candidate time resources includes one or more radio frames, each radio frame includes multiple subframes, and each subframe includes multiple slots.
  • This implementation can also be understood as a set of candidate time resources including one or more time slots.
  • the set of candidate time resources includes one or more subframes, and each subframe includes multiple time slots.
  • This implementation can also be understood as a set of candidate time resources including one or more time slots.
  • the set of candidate time resources includes one or more time slots.
  • the set of candidate time resources may also be referred to as a set of candidate time slots.
  • the set of candidate time resources may not be indicated by the base station through high layer signaling, but is predefined, or determined by the terminal itself.
  • the chip of the terminal or the terminal forms all the time resources except the first time resource or the first time slot of all the time resources except the first time resource and the reserved resource to form the candidate time resource.
  • the chip of the terminal or the terminal, in the system frame where the terminal is currently located other time resources except the first time resource, or other time resources except the first time resource and the reserved resource
  • the two time slots constitute a set of the candidate time resources, wherein the second time slot refers to a time slot in which the transmission direction of the included symbols is configurable.
  • the chip of the terminal or the terminal is allocated to the time resource of the terminal, and other time resources other than the first time resource, or other time resources other than the first time resource and the reserved resource,
  • the three time slots constitute a set of the candidate time resources, wherein the third time slot refers to a time slot in which the transmission direction of the included symbols is configurable.
  • receiving third higher layer signaling from the base station the third higher layer signaling is used to indicate a second frequency resource, and the second frequency resource is a child of the first frequency resource
  • the set of uplink symbols and the second frequency resource in the time slot can be used for unscheduled uplink transmission.
  • the terminal can be scheduled to be uplinked on the uplink symbol of the time slot.
  • the uplink transmission can be scheduled on the first frequency resource, optionally, or An unscheduled uplink transmission on the second frequency resource, where the second frequency resource is indicated by the base station by using the third high layer signaling, where the second frequency resource is a subset of the first frequency resource, that is, the second frequency resource may be the same A frequency resource is equal, and may also be a part of the first frequency resource (ie, a true subset).
  • the base station may not send the third higher layer signaling, that is, when the base station does not send the third high layer signaling, the second frequency of the terminal may be predefined.
  • the resource is equal to the first frequency resource.
  • receiving indication information from the base station the indication information is used to indicate a second time resource, and the time resource and frequency resources other than the first frequency resource can be used for scheduling-free Uplink transmission.
  • the base station indicates the second time resource by using the indication information, and the terminal uses the frequency resource other than the second time resource and the first frequency resource for the unscheduled uplink transmission, thereby increasing beyond the first frequency.
  • the frequency resource for uplink transmission without scheduling further increases resources for uplink transmission without scheduling, which can further reduce delay and improve service reliability.
  • the uplink scheduling grant is received, where the uplink scheduling grant is used to indicate the scheduled third time resource and the third frequency resource; wherein the unused time slot in the time slot in which the third time resource is located
  • the symbol and the third frequency resource can also be used for unscheduled uplink transmission.
  • another method for determining uplink transmission that can be used for scheduling is provided, that is, the base station sends an uplink scheduling grant to the terminal, which is used to indicate the scheduled third time resource and the third frequency resource.
  • the unused uplink symbol and the third frequency resource may be used for the unscheduled uplink transmission, thereby further increasing the resources for the uplink transmission without scheduling. Further reduce latency and improve business reliability.
  • data is transmitted on the resources that can be used for scheduling-free uplink transmission.
  • a method of wireless communication can be performed by a base station or a chip within a base station.
  • the method includes: transmitting, to the terminal, first high layer signaling, where the first high layer signaling is used to configure a first time resource and a first frequency resource, where the first time resource and the first frequency resource can be used for scheduling Uplink transmission; transmitting downlink control information to the terminal, where the downlink control information is used to indicate a format of a time slot, where the format indicates a transmission direction of a symbol in the time slot; wherein an uplink in the time slot
  • the symbol is a time resource that can be used for uplink transmission without scheduling.
  • the second higher layer signaling is sent to the terminal, and the second higher layer signaling is used to indicate a set of candidate time slots, the time slots belonging to the set of candidate time slots.
  • the third high layer signaling is sent to the terminal, where the third high level signaling is used to indicate a second frequency resource, and the second frequency resource is a subset of the first frequency resource.
  • the uplink symbol and the second frequency resource in the time slot can be used for unscheduled uplink transmission.
  • the indication information is sent to the terminal, where the indication information is used to indicate a second time resource, and the time resource and the frequency resource other than the first frequency resource can be used for scheduling-free Uplink transmission.
  • the uplink scheduling grant is sent to the terminal, where the uplink scheduling grant is used to indicate the scheduled third time resource and the third frequency resource, where the third time resource is in the time slot.
  • the unused uplink symbols and the third frequency resource can also be used for unscheduled uplink transmission.
  • data received by the terminal on the resource that can be used for scheduling-free uplink transmission is received.
  • the present application provides a device, which may be a terminal or a chip in a terminal.
  • the device has the functionality to implement the various embodiments of the first aspect described above. 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 terminal when the device is a terminal, the terminal 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 transceiver, the transceiver including a radio frequency Circuitry, optionally, the terminal further includes a storage unit, which may be, for example, a memory.
  • the storage unit is configured to store a computer execution instruction
  • the processing unit is connected to the storage unit, and the processing unit executes a computer execution instruction stored by the storage unit, so that the terminal performs any one of the foregoing first aspects.
  • the wireless communication method of the item when the device is a terminal, the terminal 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 transceiver, the transceiver including a radio frequency Circuitry, optionally, the terminal further includes a storage unit, which may be, for example, a memory.
  • the storage unit is configured to store
  • the chip comprises: a processing unit and a communication unit
  • the processing unit may be, for example, a processor
  • the communication unit may be, for example, an input/output interface, Pin or circuit, etc.
  • the processing unit may execute computer execution instructions stored by the storage unit to cause the chip within the terminal to perform the wireless communication method of any of the above aspects.
  • the storage unit is a storage unit in the chip, such as a register, a cache, etc., and the storage unit may also be a storage unit located outside the chip in the terminal, such as a read-only memory (read) -only memory, ROM) or other types of static storage devices, random access memory (RAM), etc. that can store static information and instructions.
  • the processor mentioned in any of the above may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more for controlling the above.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • the integrated circuit of the program execution of the first aspect wireless communication method may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more for controlling the above.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • the application provides a device, which may be a base station or a chip in a base station.
  • the device has the functionality to implement the various embodiments of the second aspect described above. 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 base station when the device is a base station, the base station comprises: a processing unit and a communication unit, the processing unit being, for example, a processor, the communication unit being, for example, a transceiver, the transceiver comprising a radio frequency Circuitry, optionally, the base station further includes a storage unit, which may be, for example, a memory.
  • the base station includes a storage unit, the storage unit is configured to store a computer execution instruction, and the processing unit is coupled to the storage unit, the processing unit executes a computer execution instruction stored by the storage unit, so that the base station performs any one of the foregoing second aspects.
  • the wireless communication method of the item when the device is a base station, the base station comprises: a processing unit and a communication unit, the processing unit being, for example, a processor, the communication unit being, for example, a transceiver, the transceiver comprising a radio frequency Circuitry, optionally, the base station further includes a storage unit, which may be, for example,
  • the chip when the device is a chip in a base station, the chip comprises: a processing unit and a communication unit, the processing unit may be, for example, a processor, and the communication unit may be, for example, an input/output interface, Pin or circuit, etc.
  • the processing unit may execute computer-executable instructions stored by the storage unit to cause the chip within the base station to perform the wireless communication method of any of the above second aspects.
  • the storage unit is a storage unit in the chip, such as a register, a cache, etc., and the storage unit may also be a storage unit located outside the chip in the base station, such as a ROM or may be stored statically. Information and instructions for other types of static storage devices, RAM, etc.
  • the processor mentioned in any of the above may be a CPU, a microprocessor, an ASIC, or one or more integrated circuits for controlling the execution of the program of the second aspect wireless communication method.
  • the present application further provides a computer readable storage medium having instructions stored therein that, when run on a computer, cause the computer to perform the method of the first aspect described above.
  • the computer can be, for example, a terminal.
  • the present application further provides a computer readable storage medium having stored therein instructions that, when run on a computer, cause the computer to perform the method of the second aspect described above.
  • the computer can be, for example, a base station.
  • the application provides a computer program product.
  • the computer program product comprises computer software instructions executable by a processor to implement the flow in the wireless communication method of any of the above first aspects.
  • the application provides a computer program product.
  • the computer program product includes computer software instructions executable by a processor to implement the flow in the wireless communication method of any of the above second aspects.
  • 1 is a schematic diagram of allocating time-frequency resources according to a method of the background art
  • FIG. 2 is another schematic diagram of allocating time-frequency resources according to a method of the background art
  • FIG. 3 is a schematic diagram of a possible network architecture of the present application.
  • FIG. 4 The present application provides a wireless communication method
  • FIG. 5 is a schematic diagram of a slot format provided by the present application.
  • 6(a) is a schematic diagram of allocating time-frequency resources provided by the present application.
  • FIG. 6(b) is a schematic diagram of another time-frequency resource allocated according to the present application.
  • FIG. 7(a) is a schematic diagram of another time-frequency resource allocated according to the present application.
  • FIG. 7(b) is a schematic diagram of another time-frequency resource allocated according to the present application.
  • FIG. 7(c) is a schematic diagram of another time-frequency resource allocated according to the present application.
  • FIG. 8(a) is a schematic diagram of another time-frequency resource allocated according to the present application.
  • FIG. 8(b) is a schematic diagram of another time-frequency resource allocated according to the present application.
  • FIG. 8(c) is a schematic diagram of another time-frequency resource allocated according to the present application.
  • FIG. 9 is a schematic diagram of another time-frequency resource allocated according to the present application.
  • FIG. 10 is a schematic diagram of another time-frequency resource allocated according to the present application.
  • FIG. 11 is a schematic diagram of a device provided by the present application.
  • the wireless communication method of the present application may be performed by a device.
  • the device On the network side, the device may be a chip in the base station or the base station, that is, the wireless communication method of the present application may be performed by a chip in the base station or the base station; on the terminal side, the device may be a chip in the terminal or the terminal, that is, may be The terminal or the chip within the terminal performs the wireless communication method of the present application.
  • the present application uses a device as a base station or a terminal as an example to describe a wireless communication method.
  • a device is a chip in a base station or a chip in a terminal
  • the present application may be a system message (Master Information Block (MIB) or System Information Block (SIB), broadcast signaling, RRC signaling, Media Access Control (MAC) Control Unit (CE), etc.).
  • MIB Master Information Block
  • SIB System Information Block
  • RRC Radio Resource Control
  • CE Media Access Control
  • the first high-level signaling, the second high-level signaling, and the third high-level signaling that appear in the present application may be one or more of the foregoing types of signaling. Let me repeat.
  • LTE long term evolution
  • TDD Time Division Duplexing
  • the slot structure may be indicated by a group common physical downlink control channel (Group Common PDCCH), and the slot structure may also be understood as a slot format (Slot Format) or slot format related information (Slot).
  • the base station sends a Group Common PDCCH, and the terminal detects the Group Common PDCCH to obtain a slot format.
  • the slot format indicates which symbols are uplink, which symbols are downlink, and which symbols are other, and other symbols. It is not for upstream or downstream information, such as blank resources, Guard Period (GP), reserved resources, or unknown resources.
  • a Group Common PDCCH can indicate the slot format of one or more slots.
  • the time resource includes a fixed time resource and a flexible time resource.
  • the fixed time resource includes a fixed time slot
  • the flexible time resource includes a flexible time slot.
  • all the symbols in the fixed time slot are fixed for uplink or downlink, and it can also be understood that the transmission direction of each symbol in the fixed time slot is semi-statically configured by the base station through high layer signaling.
  • the transmission direction of each symbol in the flexible time slot is variable.
  • the base station dynamically indicates the transmission direction of each symbol in the time slot used for each transmission through the downlink control information.
  • the fixed time slot includes a fixed uplink symbol or a fixed downlink symbol.
  • the flexible time slot can be referred to as a flexible slot, and the transmission direction of each symbol in the flexible slot is dynamically indicated by the base station when in use.
  • the fixed time resource and the flexible time resource may also be in units of symbols, for example, a part of a time slot is fixed by a semi-static configuration of a high layer signaling for downlink, or a partial symbol of a time slot is semi-statically configured by high layer signaling. Fixed for uplink, or part of a time slot is fixed by the semi-static configuration of high-level signaling for downlink, and some symbols are fixed for uplink by semi-static configuration of high-level signaling.
  • the foregoing fixed time resource and flexible time resource may also be in multiple time slots, which is not limited by the present invention.
  • the terminal may be configured with reserved resources. If the terminal is configured with reserved resources, the terminal does not make any assumptions on the reserved resources. Not making any assumptions means that the terminal believes that downlink transmission and uplink transmission will not occur on the reserved resource.
  • the reserved resource may be used by the base station to perform high layer signaling (for example, System Information Block (SIB) or RRC Radio Resource Control (RRC)), and broadcast signaling (for example, physical broadcast channel (Physical Broadcast)
  • SIB System Information Block
  • RRC Radio Resource Control
  • broadcast signaling for example, physical broadcast channel (Physical Broadcast)
  • the signaling, the MAC layer signaling, and the physical layer signaling (for example, the Downlink Control Information (DCI)) of the channel are allocated to the terminal, which is not limited by the present invention.
  • DIB System Information Block
  • RRC Radio Resource Control
  • DCI Downlink Control Information
  • the terminal may be configured with a fixed uplink time slot, that is, the terminal fixed uplink time resource, and allocate a certain fixed frequency resource to the terminal for transmission in the allocation. Unscheduled uplink data transmission on time-frequency resources.
  • the time resource of the allocated time dimension is a fixed uplink time resource, for example, a fixed uplink time slot. In this application, it is also referred to as a first time resource; the frequency resource of the allocated frequency dimension is a first frequency resource.
  • the first time resource may be a periodic resource, and at other times, the first time resource may also be included. This application only shows some of the first time resources, which will not be described later.
  • the time-frequency resource composed of the first time resource and the first frequency resource that is, the time-frequency resource “1” in FIG. transmission.
  • the terminal when the terminal is currently in the time interval in which the time-frequency resource “2” is located, and the uplink transmission of the Grant free is required, that is, the uplink transmission is performed without scheduling, since the time-frequency resource “2” is not It is configured to perform Grant free uplink transmission. Therefore, the terminal needs to wait for the next period to arrive, and performs Grant free uplink transmission on the time-frequency resource configured for Grant free uplink transmission. For example, as shown in FIG.
  • the terminal can perform the Grant free uplink transmission on the time-frequency resource “5”, but causes the delay of the terminal to perform the Grant free uplink transmission. Even if there are no time-frequency resources available for Grant free uplink transmission in subsequent cycles, the resources will not be used enough, the transmission competition and collisions will increase, and the high reliability requirements of the reliability service cannot be guaranteed.
  • the present application provides a wireless communication method
  • the terminal receives the first high layer signaling from the base station, and the first high layer signaling is used to configure the first The time resource and the first frequency resource, the first time resource and the first frequency resource can be used for the unscheduled uplink transmission;
  • the terminal receives the downlink control information, where the downlink control information is used to indicate the format of the time slot, The format indicates the transmission direction of the symbols in the time slot; wherein the uplink symbols in the time slots are time resources that can be used for uplink transmission without scheduling.
  • the base station notifies the first time resource and the first frequency resource that can be used for the unscheduled uplink transmission by using the first high layer signaling, and also indicates the format of the time slot by using the downlink control information, and the time slot
  • the uplink symbol in the uplink symbol can also be used for the unscheduled uplink transmission. Therefore, the base station can dynamically allocate the time resource that can be used for the uplink transmission without scheduling by using the downlink control information.
  • the dynamically allocated time resource can be used for the unscheduled uplink transmission, thereby ensuring low latency requirements and high reliability requirements of the service.
  • FIG. 3 it is a schematic diagram of a possible network architecture of the present application. At least one terminal 10 is included to communicate with the base station 20 via a wireless interface. For the sake of clarity, only one base station and one terminal are shown.
  • the terminal is a device with wireless transceiver function, which can be deployed on land, indoors or outdoors, handheld or on-board; it can also be deployed on the water surface (such as ships); it can also be deployed in the air (such as airplanes, balloons). And satellites, etc.).
  • the terminal may be a mobile phone, a tablet, a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, industrial control (industrial control) Wireless terminal, wireless terminal in self driving, wireless terminal in remote medical, wireless terminal in smart grid, wireless terminal in transport safety, A wireless terminal in a smart city, a wireless terminal in a smart home, and the like.
  • a base station is a device that accesses a terminal to a wireless network, including but not limited to: a gNB in an 5G, an evolved node B (eNB), a radio network controller (RNC), and a node.
  • B node B, NB
  • BSC base station controller
  • BTS base transceiver station
  • home base station for example, home evolved node B, or home node B, HNB
  • baseband unit BaseBand Unit
  • BBU base station
  • TRP transmission and receiving point
  • TP mobile switching center
  • Wifi access point (access) Point AP
  • Wifi access point (access) Point AP
  • Various embodiments of the present application can be used for scheduling-free (English can be Grant Free) transmission. Grant free transmission can solve a large number of MTC-type services in the future network, and meet low-latency, high-reliability service transmission. Grant free transmission can be targeted for upstream data transmission. Those skilled in the art will appreciate that Grant free transmissions can also be called other names, such as autonomous access, spontaneous multiple access, or contention-based multiple access. Various embodiments of the present application can be utilized in communication systems that use non-orthogonal multiple access.
  • Type 1 The uplink data transmission does not require the Grant information sent by the base station, and is based only on the RRC configuration/reconfiguration information.
  • Type 2 The uplink data transmission does not require the Grant information sent by the base station, and the Grant free transmission needs to be activated/deactivated based on the RRC configuration information and physical layer signaling (for example, L1 signaling).
  • Type 3 The uplink data transmission does not require the Grant information sent by the base station. Based on the RRC configuration/reconfiguration information, the physical layer signaling (eg, L1 signalling) is allowed to modify some parameters of the RRC signaling semi-static configuration, but does not require physical Layer signaling (eg, L1 signalling) activates/deactivates the Grant free transmission.
  • the physical layer signaling eg, L1 signalling
  • the present application provides a wireless communication method, which is applicable to the network architecture shown in FIG. 3, and includes the following steps:
  • Step 401 The base station sends first high layer signaling to the terminal, where the terminal receives the first high layer signaling from the base station.
  • the first high layer signaling is used to configure the first time resource and the first frequency resource, where the first time resource and the first frequency resource can be used.
  • the first time resource may be, for example, a fixed uplink symbol in a time slot, that is, the first time resource is a symbol whose transmission direction is fixed to an uplink.
  • the time-frequency resources “1” and “5” are the first time resource in the time dimension and the first frequency resource in the frequency dimension.
  • the base station allocates a time-frequency resource that can be used for the uplink transmission of the schedule-free, and the allocated time resource is the first time resource, and the symbol in the first time resource is fixed as the uplink.
  • the first high layer signaling needs to indicate the first time resource, and does not need to indicate the first frequency resource.
  • the first frequency resource it may be indicated by the base station by signaling of the L1 layer.
  • the first high layer signaling may also indicate the first time resource without indicating the first frequency resource.
  • the first frequency resource it may be indicated by the base station by signaling of the L1 layer.
  • Step 402 The base station sends downlink control information to the terminal, where the terminal receives downlink control information from the base station.
  • the downlink control information is used to indicate a format of a time slot, and the format may also be referred to as a slot format, where the format indicates a transmission direction of a symbol in a time slot, and an uplink symbol in the time slot is available for use. Time resource for unscheduled uplink transmission.
  • the uplink symbol in the time slot can be used for the unscheduled uplink transmission, or the partial uplink symbol in the time slot can be used for the unscheduled uplink transmission.
  • the unscheduled uplink transmission may be performed by using all the symbols in the uplink symbols, or only some of the symbols may be used for the unscheduled uplink. transmission.
  • the base station indicates the time slot by using the downlink control information, in addition to the first time resource and the first frequency resource that can be used for the unscheduled uplink transmission by the first high layer signaling.
  • the format of the uplink symbol in the time slot can also be used for the unscheduled uplink transmission. Therefore, the base station can dynamically allocate the time resource for the terminal to be used for the uplink transmission without scheduling, by using the downlink control information, when the first time resource cannot be used. When used or not enough, the dynamically allocated time resource can be used for scheduling-free uplink transmission, thereby ensuring low latency requirements and high reliability requirements of the service.
  • the format of the time slot indicated by the downlink control information by the base station may be determined according to actual conditions, and the time slot of each symbol includes 7 symbols, and the transmission direction of each symbol may be uplink, downlink, or unknown (ie, unknown at least one or the GP or reserved), thus, for each time slot, there are 37 kinds of formats, in particular, a slot which format to use, is indicated by the base station; another example, if a time slot Including 14 symbols, there are 3 14 formats per time slot.
  • a slot format provided by the present application
  • the protocol defines four slot formats used, where the first slot format is: all symbols are downlink symbols, Indicated by "00”, the second slot format is: all symbols are uplink symbols, denoted by "01”, and the third slot format is: consecutive L downlink symbols + connect M unknown symbols + consecutive N
  • the uplink symbol, L+M+N is equal to the number of symbols included in one slot, and the values of L>N, L, M, and N are all defined by the protocol, represented by “10”
  • the fourth slot format is : consecutive L downlink symbols + connect M unknown symbols + consecutive N uplink symbols, L+M+N is equal to the number of symbols included in one slot, and the values of L ⁇ N, L, M, N are protocols. Defined, denoted by "11".
  • the base station and the terminal are pre-configured with the format information. Therefore, for a time slot, for example, when the slot format indicated by the base station is “00”, the terminal knows that the format of the time slot is: all symbols are used for downlink; For example, when the slot format indicated by the base station is "11”, the terminal knows that the format of the slot is: consecutive L downlink symbols + connection M unknown symbols + consecutive N uplink symbols, and L ⁇ N, L, The values of M and N are all defined by the protocol.
  • the base station indicates the format of the time slot by using the downlink control information, and specifically indicates the format of the time slot in the candidate time resource set.
  • the base station indicates the format of the time slot by using the downlink control information, and specifically indicates the format of the time slot in the candidate time resource set.
  • the set of candidate time resources may be a set of one or more radio frames, each radio frame includes multiple subframes, and each subframe includes multiple time slots, so that the set of candidate time resources may be regarded as including multiple Time slot.
  • the set of candidate time resources may also be a set of one or more subframes, each subframe comprising a plurality of time slots, such that a set of candidate time resources may be considered to include a plurality of time slots.
  • the set of candidate time resources may also be directly a set of one or more time slots, in which case the set of candidate time resources may also be referred to as a set of candidate time slots.
  • Method 1 The base station indicates a set of candidate time resources
  • the method includes: the base station sends the second high layer signaling to the terminal, where the second high layer signaling is used to indicate the set of candidate time resources, and the foregoing step 402 is performed.
  • the format of the time slot indicated by the downlink control information that is, the format of the time slot in the set of the candidate time resources, may also be understood as the control information sent by the base station, indicating the candidate time resource indicated by the second high layer signaling.
  • the base station explicitly informs the terminal that the format of the time slot indicated by the downlink control information is the format of the time slot in the set of candidate time resources.
  • the base station and the terminal are predefined, and the time slot in the set of candidate time resources is a time slot on the time resource except the first time resource. Therefore, when the terminal determines the first time resource, the candidate can be determined.
  • the base station and the terminal are predefined, and the time slot in the set of candidate time resources is a time slot on a time resource other than the first time resource and the reserved resource, and therefore, when the terminal When the first time resource and the reserved resource are determined, the set of candidate time resources can be determined.
  • the method can also be specifically divided into the following implementation modes:
  • the terminal forms a set of the candidate time resources for all time resources except the first time resource or all time resources except the first time resource and the reserved resource.
  • the first time slot refers to a time slot in which the transmission direction of the included symbol can be flexibly configured. It can also be understood that the first time slot is a time slot format that can be flexibly configured, that is, the time slot format is determined by the base station.
  • the indication information of the slot format is carried by the downlink control channel common to the terminal group, for example, the slot format refers to the transmission direction of the symbols in the slot.
  • the second time slot in the system frame in which the terminal is currently located, except for the first time resource, or other time resources except the first time resource and the reserved resource a set of the candidate time resources, where the second time slot refers to a time slot in which the transmission direction of the included symbol can be flexibly configured, that is, the time slot format is dynamically indicated by the base station by using downlink control information, for example, through the terminal group.
  • the common downlink control channel carries indication information of the slot format.
  • Embodiment 3 The third time slot in the time resource allocated by the terminal to the terminal, other time resources except the first time resource, or other time resources except the first time resource and the reserved resource a set of the candidate time resources, where the third time slot refers to a time slot in which the transmission direction of the included symbol can be flexibly configured, that is, the time slot format is dynamically indicated by the base station by using downlink control information, for example, through the terminal group.
  • the common downlink control channel carries indication information of the slot format.
  • the terminal can determine which time slot formats are indicated in the downlink control information.
  • the bit may be used to represent, for example, as shown in FIG. 5, when there are only four types of slot format pre-defined, the format of each slot indicated may be “00”. One of ",”"01”,”10", and "11".
  • the predefined format has K types and K is greater than 1, it indicates that the number of bits required for each time slot is
  • the terminal can determine the format of each time slot in the set of candidate time resources according to the format of the time slot indicated by the base station, and further determine which symbols in each time slot are indicated by the base station as uplink symbols, and use the uplink symbol for the uplink symbol. Unscheduled uplink transmission.
  • the terminal can indicate the time resource of the uplink transmission that can be scheduled to be unscheduled.
  • the frequency resource corresponding to the time resource there are also multiple implementation manners, which are respectively introduced below.
  • the frequency resource corresponding to the time resource indicated by the downlink control information is referred to as the second frequency resource, and has the following two implementation manners.
  • Implementation mode 1 The second frequency resource is equal to the first frequency resource.
  • the frequency resource corresponding to the time resource indicated by the downlink control information is the same as the first frequency resource.
  • the method for determining the second frequency resource by the terminal may have the following two specific implementation manners. One is that the predefined second frequency resource is equal to the first frequency resource, so the terminal may determine the second frequency resource according to the first frequency resource, or It can be understood that the terminal directly uses the first frequency resource, and the other is indicated by the base station by using the third high layer signaling, that is, before or after the foregoing step 402, the method further includes: the terminal receiving the third high layer signaling from the base station, The third higher layer signaling is used to indicate a second frequency resource, and the second frequency resource is equal to the first frequency resource.
  • the terminal may perform the unscheduled uplink transmission on the uplink symbol in the time slot indicated by the downlink control information and the second frequency resource.
  • FIG. 6(a) a schematic diagram of allocating time-frequency resources according to the present application, wherein the second frequency resource is equal to the first frequency resource, and the time resource indicated by the base station by using the downlink control information is used in the flexible time resource.
  • the format of the time resource indicated by the base station is the fourth slot format shown in FIG. 5.
  • the base station may also indicate the format of multiple slots in the set of candidate time resources.
  • FIG. 6(b) another schematic diagram of allocating time-frequency resources provided by the present application, where the base station indicates, by using downlink control information, time resources that can be used for uplink scheduling without scheduling, specifically, uplink symbols, combined
  • the second frequency resource constitutes a time-frequency resource that can be used for the uplink Grant free.
  • the time-frequency resource and the time-frequency resource formed by the uplink symbol and the second frequency in the time-frequency resource “2” are “ All of 5" (time slots in the real-time resource "5" are all uplink symbols) time-frequency resources composed of the uplink symbol and the second frequency in the time-frequency resource "6".
  • the base station indicates the second frequency resource or the predefined second frequency resource, which is the same as the first frequency resource, and then combines with the base station to determine the uplink symbol by using the format of the time resource indicated by the downlink control information, thereby configuring the uplink symbol to be applicable. Time-frequency resources for unscheduled uplink transmission.
  • the second frequency resource is a subset of the first frequency resource.
  • the frequency resource corresponding to the time resource indicated by the downlink control information is a subset of the first frequency resource, where the meaning of the subset is: the second frequency resource and the first frequency
  • the resources are the same, or the second frequency resource is a true subset of the first frequency resource.
  • the base station indicates by the third higher layer signaling, that is, before or after the step 402, the terminal further includes: the terminal receiving the third high layer signaling from the base station, where The third higher layer signaling is used to indicate a second frequency resource, and the second frequency resource is a true subset of the first frequency resource.
  • the terminal may perform uplink scheduling without scheduling on the uplink symbol in the time slot indicated by the downlink control information and the second frequency resource.
  • FIG. 7(a) another schematic diagram of allocating time-frequency resources provided by the present application, where the second frequency resource is a true subset of the first frequency resource, and the time resource indicated by the base station by using the downlink control information is a flexible time.
  • the format of the time resource indicated by the base station is the fourth slot format shown in FIG. 5.
  • the base station may also indicate the format of multiple slots in the set of candidate time resources.
  • FIG. 7(b) another schematic diagram of allocating time-frequency resources provided by the present application, where the base station indicates, by using downlink control information, time resources that can be used for uplink scheduling without scheduling, specifically, uplink symbols, combined
  • the second frequency resource constitutes a time-frequency resource that can be used for the uplink Grant free.
  • the time-frequency resource and the time-frequency resource formed by the uplink symbol and the second frequency in the time-frequency resource “2” are “
  • the uplink symbol and the second frequency formed by the uplink symbol and the second frequency constitute a time-frequency resource composed of an uplink symbol and a second frequency in the time-frequency resource "6".
  • the second frequency resource indicated by the third high-level signaling by the base station may also be a corresponding second frequency resource for each time slot indicated in the downlink control information.
  • the second frequency resources of different time slots may be the same or different, as shown in FIG. 7(c), which is another schematic diagram of allocating time-frequency resources provided by the present application, where the time-frequency resource “2” is used.
  • FIG. 7(c) is another schematic diagram of allocating time-frequency resources provided by the present application, where the time-frequency resource “2” is used.
  • the second frequency resource indicated above, the second frequency resource indicated on the time-frequency resource "5", and the second frequency resource indicated on the time-frequency resource "6" are different from each other.
  • the base station indicates the second frequency resource, and the base station determines the uplink symbol by using the format of the time resource indicated by the downlink control information, thereby configuring a time-frequency resource that can be used for uplink scheduling without scheduling.
  • the present application further provides a determining method for determining a time-frequency resource that can be used for the uplink transmission of the scheduling, and optionally, before or after the foregoing step 402, the method further includes:
  • the base station sends the indication information, where the indication information is used to indicate the second time resource, and the time resource and the frequency resource other than the first frequency resource can be used for uplink scheduling without scheduling, wherein, for convenience of description, A frequency resource other than the first frequency resource is referred to as a fourth frequency resource.
  • the fourth frequency resource can be understood as a frequency resource other than the first frequency resource among the available frequency resources allocated by the base station to the terminal.
  • the indication information may be displayed indication information, such as carried by the Group Common PDCCH, or implicitly indicated by the first control channel element of the Group Common search space (control channel element, CCE) ) Implicit instructions.
  • the terminal After receiving the indication information, the terminal acquires the second time resource indicated therein, and determines, according to the predetermined reservation, that the frequency resource used by the second time resource is the fourth frequency resource, and therefore, the terminal determines the second time resource and the first time resource.
  • the time-frequency resource composed of the four frequency resources is a time-frequency resource that can be used for uplink transmission without scheduling.
  • FIG. 8( a ) another schematic diagram of allocating time-frequency resources provided by the present application, wherein the second time resource partially overlaps with the first time resource, and of course, there may be no overlap.
  • the implementation manner may also be combined with the foregoing implementation manner 1 and implementation manner 2.
  • the base station may send the high-level signaling, and additionally indicate a part of the frequency resources in the fourth frequency resource, which is called the fifth frequency resource, and is used as the frequency resource used by the second time resource.
  • FIG. 8(b) another schematic diagram of allocating time-frequency resources provided by the present application, where the terminal determines a time-frequency resource formed by the second time resource and the fifth frequency resource, which is an uplink that can be used for scheduling-free. Time-frequency resources for transmission.
  • the base station sends the high-level signaling to indicate the fifth frequency resource, and may also be a corresponding fifth frequency resource for each time slot in the second time resource, or may be understood as the fifth time of the different time slots.
  • the frequency resources may be the same or different, as shown in FIG. 8(c), which is another schematic diagram of allocating time-frequency resources provided by the present application, where the fifth frequency resource and the time indicated on the time-frequency resource “4” The fifth frequency resources indicated on the frequency resource "3" are different from each other.
  • FIGS. 8( a ) to 8 ( c ) and FIGS. 7( a ) to 7 ( c ) and 6 ( a ) to 6 ( b) may be used.
  • the implementations shown are combined to form a new implementation.
  • FIG. 9 another schematic diagram of allocating time-frequency resources provided by the present application is implemented by combining the implementation modes shown in FIG. 8(a) and FIG. 6(a). .
  • this application is not illustrated.
  • the present application further provides a determining method for determining a time-frequency resource that can be used for the uplink transmission of the scheduling, and optionally, before or after the foregoing step 402, the method further includes: The base station sends an uplink scheduling grant to the terminal, where the uplink scheduling grant is used to indicate the scheduled third time resource and the third frequency resource, where the unused uplink symbol and the first time slot in the time slot in which the third time resource is located Three frequency resources can also be used for unscheduled uplink transmission.
  • the base station indicates, by using the uplink scheduling, the uplink resource that can be used by the terminal, and if some of the uplink time-frequency resources are not used, the unused uplink time-frequency resource can be used for uplink scheduling without scheduling. .
  • This implementation can be used in combination with any of the above implementations, that is, with respect to FIG. 6(a) to FIG. 6(b), FIG. 7(a) to FIG. 7(c), and FIG. 8(a) to FIG. Any of the implementations in c) are used in combination.
  • FIG. 10 is a schematic diagram of another time-frequency resource allocated for the present application, which may be compared with FIG. 6(a) to FIG. 6(b) and FIG. 7(a) to FIG. 7(c). 8(a) to 8(c) and 9 are used in combination, and FIG. 10 is described by taking an example shown in FIG. 7(a) as an example.
  • the base station indicates, by using the uplink scheduling grant, part of the three time slots as the uplink scheduling resource, and specifically, the third time resource and the time-frequency resources “2”, “3”, and “4” respectively.
  • Third frequency resource Third frequency resource.
  • the time slots in which the third time resource is located are all unused uplink symbols. Therefore, the uplink symbols that are not used in the three time slots can be used by the terminal as an unscheduled uplink resource to transmit uplink data.
  • the base station sends an uplink scheduling grant to the terminal, which is used to indicate the scheduled third time resource and the third frequency resource, when the third time
  • the unused uplink symbol and the third frequency resource may be used for the unscheduled uplink transmission, thereby further increasing the uplink transmission for scheduling-free. Resources can further reduce latency and improve business reliability.
  • the present application provides a plurality of methods for dynamically allocating unscheduled uplink resources for a terminal, which may be as shown in FIG. 6(a) to FIG. 6(b), FIG. 7(a) to FIG. 7(c), and FIG. 8(a). Any of the implementations of FIG. 8(c), FIG. 9, and FIG. 10 may be a combination of any two or more implementations. Based on these implementations, the terminal can dynamically allocate unscheduled uplink resources, so that the requirements of certain services of the terminal for low latency and high reliability can be met.
  • the terminal may send data on the resources that can be used for uplink scheduling without scheduling. .
  • FIG. 11 is a schematic diagram of a device provided in the present application.
  • the device may be the terminal in any of the foregoing embodiments, or may be the base station in any of the foregoing embodiments, and the device may be the one shown in FIG.
  • the terminal or the chip in the terminal in the system architecture may also be a base station in the system architecture shown in FIG. 3 or a chip in the base station.
  • the apparatus 200 can be used to indicate a method performed by a terminal or a base station in any of the wireless communication methods described above.
  • the apparatus 200 includes at least one processing unit 21, a communication unit 22, and optionally a storage unit 23.
  • the processing unit 21, the communication unit 22, and the storage unit 23 are connected by a communication bus.
  • Processing unit 21 may be a general purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present invention.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • the communication bus can include a path for communicating information between the above units.
  • the communication unit 22 may be a device having a transceiving function for communicating with other devices or a communication network, such as an Ethernet, a radio access network (RAN), a wireless local area network (WLAN), or the like.
  • a communication network such as an Ethernet, a radio access network (RAN), a wireless local area network (WLAN), or the like.
  • the storage unit 23 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other information that can store information and instructions.
  • Type of dynamic storage device also can be electrically erasable programmable read-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.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be Any other media accessed, but not limited to this.
  • the storage unit 23 may be independent and connected to the processing unit 21 via a communication bus.
  • the storage unit 23 can also be integrated with the processing unit.
  • the storage unit 23 is configured to store application code for executing the solution of the present invention, and is controlled by the processing unit 21 for execution.
  • the processing unit 21 is configured to execute an application code stored in the storage
  • processing unit 21 may include one or more CPUs, such as CPU0 and CPU1 in FIG.
  • apparatus 200 may include a plurality of processing units, such as processing unit 21 and processing unit 28 in FIG.
  • processing unit 21 and processing unit 28 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 processing unit 21 when the device is a base station or a terminal, the processing unit 21 may be, for example, a processor, and the communication unit 22 may be, for example, a transceiver, the transceiver including a radio frequency circuit, and when the device further includes a storage unit At 2300, the storage unit 23 is configured to store a computer execution instruction, the processing unit 21 is connected to the storage unit 23, and the processing unit 21 executes a computer execution instruction stored by the storage unit 23 to cause the base station or the terminal to execute any of the above A wireless communication method of an embodiment.
  • the processing unit 21 may be, for example, a processor, and the communication unit 22 may be, for example, an input/output interface, a pin or a circuit, or the like.
  • the processing unit 21 may execute computer execution instructions stored by the storage unit to cause the chip to execute the wireless communication method in the above embodiment.
  • the storage unit is a storage unit in the chip, such as a register, a cache, etc., and the storage unit may also be a storage unit located outside the chip in the base station or terminal, such as a ROM or may be stored. Static information and instructions for other types of static storage devices, RAM, etc.
  • the chip performs a wireless communication method, which can be understood as: the chip combines other components in the device to complete the wireless communication method.
  • the communication unit of the chip is connected to the transceiver of the terminal, and the transceiver of the terminal can receive high-level signaling from the base station, so that the communication unit of the chip can receive the first high-level letter from the base station.
  • the processor of the terminal can control the transceiver of the terminal to receive the downlink control information, and the communication unit of the chip can receive the downlink control information from the transceiver and send the signal to the processing unit of the chip, thereby implementing by the chip of the terminal.
  • the communication unit of the chip is connected to the transceiver of the base station, and the chip processing unit sends the high layer signaling to the transceiver of the base station through the communication unit, and the transceiver is sent by the transceiver of the base station to the terminal.
  • the processing unit of the chip sends downlink control information to the transceiver of the base station through the communication unit, and then the transceiver of the base station sends the downlink control information to the terminal, thereby implementing the implementation of the invention by the chip of the base station
  • the apparatus when the apparatus is divided by the method shown in FIG. 11, the apparatus can implement the wireless communication method in any of the above embodiments of the present application by cooperation of the processing unit and the communication unit.
  • the processing unit is configured to control the communication unit to: receive first high layer signaling from a base station, where the first high layer signaling is used. Configuring a first time resource and a first frequency resource, where the first time resource and the first frequency resource can be used for scheduling-free uplink transmission; receiving downlink control information, where the downlink control information is used to indicate a format of a time slot, The format indicates the transmission direction of the symbols in the time slot; wherein the uplink symbols in the time slots are time resources that can be used for uplink transmission without scheduling.
  • chip of the terminal or the terminal may be used to implement the steps performed by the terminal in the wireless communication method of the embodiment of the present invention.
  • reference may be made to the above, and details are not described herein again.
  • the processing unit is configured to control the communication unit to: send first high layer signaling to the terminal, where the first high layer signaling is used for configuration.
  • the first time resource and the first frequency resource, the first time resource and the first frequency resource can be used for the unscheduled uplink transmission;
  • the downlink control information is sent to the terminal, where the downlink control information is used to indicate the time slot a format indicating a transmission direction of a symbol in the time slot; wherein an uplink symbol in the time slot is a time resource that can be used for uplink transmission without scheduling.
  • chip of the base station or the base station may be used to implement the steps performed by the base station in the method of the wireless communication in the embodiment of the present invention.
  • the present application also provides a computer readable storage medium having stored therein instructions that, when executed on a computer, cause the computer to perform the wireless communication method described above.
  • the computer can be a terminal or a base station.
  • the application provides a computer program product.
  • the computer program product includes computer software instructions executable by a processor to implement the flow in the wireless communication method of any of the above embodiments.

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Abstract

本申请提供一种无线通信方法及装置。该方法可由终端或终端的芯片执行，该方法包括：接收来自基站的高层信令，高层信令用于配置能够用于免调度的上行传输的第一时间资源和第一频率资源，接收指示时隙的格式的下行控制信息，该格式指示时隙中的符号的传输方向，时隙中的上行符号为能够用于免调度的上行传输的时间资源。该方法中，接收基站通过下行控制信息为终端动态分配的能够用于免调度的上行传输的时间资源，当第一时间资源不能使用或不够使用时，可使用该动态分配的时间资源用于免调度的上行传输，有助于满足终端某些业务的低时延和高可靠性要求。

Description

一种无线通信方法及装置
本申请要求在2017年8月11日提交中华人民共和国知识产权局、申请号为201710686237.3、发明名称为“一种无线通信方法及装置”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
本申请涉及移动通信技术领域，尤其涉及一种无线通信方法及装置。
背景技术
在第五代通信(the 5th generation，5G)通信中，将支持Grant free上行传输，Grant free上行传输也称为免调度或免授权的上行传输，指的是上行数据的传输不需要通过基站的调度，而是由终端自己根据业务的数据到达情况，在由基站预分配的时频资源上进行上行数据的传输。
其中，预分配的时频资源，例如用于上行Grant free的传输资源，是由高层信令，如无线资源控制(Radio Resource Control，RRC)信令半静态配置的，具体包括：
1)、配置时间资源(也称时域资源)，包括半静态传输资源的周期大小，以及相对于系统帧号SFN＝0的偏移值。
2)、配置频率资源(也称频域资源)，即配置预留的用于Grant free上行传输的频率资源，即从分配给终端的频率资源中预留一部分用于Grant free上行传输。
目前，上述通过半静态配置用于上行Grant free传输的时间资源的方法，存在的主要问题是：当有低时延业务，如低时延高可靠场景(Ultra-reliable and low latency communications，URLLC)业务到来时，如果当前子帧或时隙无半静态配置的用于Grant free上行传输的时间资源，则将导致业务数据的发送时延增大，无法满足低时延业务的低时延要求，并且，当低时延业务增多时，还会导致资源不够用，传输竞争和冲突增大，不能满足终端某些业务的的高可靠性要求。
发明内容
本申请提供一种无线通信方法及装置，有助于满足终端某些业务的低时延和高可靠性要求。
为达到上述目的，本申请提供如下技术方案：
第一方面，提供一种无线通信方法，该方法可由终端或终端内的芯片执行。该方法包括：接收来自基站的第一高层信令，所述第一高层信令用于配置第一时间资源和第一频率资源，所述第一时间资源和第一频率资源能够用于免调度的上行传输；接收下行控制信息，所述下行控制信息用于指示时隙的格式，所述格式指示了所述时隙中的符号的传输方向；其中，所述时隙中的上行符号为能够用于免调度的上行传输的时间资源。该方法中，接收基站通过下行控制信息为终端动态分配的能够用于免调度的上行传输的时间资源，当第一时间资源不能使用或不够使用时，可使用该动态分配的时间资源用于免调度的上行传输，有助于满足终端某些业务的低时延和高可靠性要求。
可选地，针对时隙中能够用于免调度的上行传输的上行符号，可以是使用这些上行符号中的所有符号进行免调度的上行传输，也可以只使用这些符号中的部分符号进行免调度的上行传输。
可选地，时间资源包括固定时间资源和灵活时间资源，固定时间资源中的每个符号的传输方向由基站通过高层信令半静态配置，灵活时间资源中的每个符号的传输方向由基站通过下行控制信息动态指示。
可选地，固定时间资源包括固定上行符号，和/或，固定下行符号。
可选地，所述固定时间资源为时隙，所述灵活时间资源为时隙。
可选地，所述固定时间资源为子帧，所述灵活时间资源为子帧，一个子帧包括一个或多个时隙。
可选地，所述固定时间资源为系统帧，所述灵活时间资源为系统帧，一个系统帧包括一个或多个子帧，一个子帧包括一个或多个时隙。
可选地，所述时间资源除了包括固定时间资源和灵活时间资源，还包括预留资源，所述预留资源不用于下行传输和上行传输。
基于与第一方面相同的发明构思，在一种可能的设计中，还提出另一种无线通信方法，该方法可由终端或终端内的芯片执行。该方法包括：接收来自基站的第一高层信令，所述第一高层信令用于配置第一时间资源，所述第一时间资源能够用于免调度的上行传输；接收下行控制信息，所述下行控制信息用于指示时隙的格式，所述格式指示了所述时隙中的符号的传输方向；其中，所述时隙中的上行符号为能够用于免调度的上行传输的时间资源。该无线通信方法与上述第一方面的无线通信方法的主要区别在于，基站通过第一高层信令，为终端配置第一时间资源，而对于第一频率资源，无需在第一高层信令中配置，其它部分与第一方面的实现方式相同。该无线通信方法，适用于为基站为终端分配时间资源的场景，当分配的时间资源不足时，可进行动态增加时间资源。可选地，还接收来自所述基站的第一频率资源，例如，第一频域资源由物理层的激活信令指示。
可选地，有以下三种类型的Grant free传输：
类型1:上行数据传输不需要基站下发的Grant信息，只基于RRC配置/重配置的信息。
类型2:上行数据传输不需要基站下发的Grant信息,需要基于RRC配置信息和物理层信令(比如，L1信令(signalling))指示激活/去激活Grant free传输。
类型3:上行数据传输不需要基站下发的Grant信息，基于RRC配置/重配置的信息，允许物理层信令(如，L1 signalling)修改RRC信令半静态配置的一些参数，但不需要物理层信令(如，L1 signalling)激活/去激活Grant free传输。
可选地，当Grant free是类型1时，第一高层信令用于配置第一时间资源和第一频率资源，所述第一时间资源和第一频率资源能够用于免调度的上行传输。
可选地，当Grant free是类型3时，第一高层信令用于配置第一时间资源和第一频率资源，所述第一时间资源和第一频率资源能够用于免调度的上行传输。
可选地，当Grant free是类型2时，第一高层信令则需要指示第一时间资源，不需要指示第一频率资源。对于第一频率资源，可由基站通过L1层的信令指示。
可选地，当Grant free是类型3时，第一高层信令则需要指示第一时间资源，不需要指示第一频率资源。对于第一频率资源，可由基站通过L1层的信令指示。
其中，第一时间资源，例如可以是时隙中的固定上行符号，即第一时间资源为传输方向固定为上行的符号。
在一种可能的设计中，接收来自所述基站的第二高层信令，所述第二高层信令用于指示候选时间资源的集合，所述时隙属于所述候选时间资源的集合。该方法中，基站通过第二高层信令，指示了候选时间资源的集合，该集合中的时隙为终端用于免调度的上行传输的候选时隙，即该集合中的任一时隙都可以由终端用于免调度的上行传输，也可以理解为，如果集合中的任一时隙中的部分或全部符号被基站配置为上行符号，则该上行符号可用于免调度的上行传输。
可选地，所述候选时间资源的集合包括一个或多个无线帧，每个无线帧包括多个子帧，每个子帧包括多个时隙。该实现方式也可以理解为，候选时间资源的集合包括一个或多个时隙。
可选地，所述候选时间资源的集合包括一个或多个子帧，每个子帧包括多个时隙。该实现方式也可以理解为，候选时间资源的集合包括一个或多个时隙。
可选地，所述候选时间资源的集合包括一个或多个时隙。该实现方式中，候选时间资源的集合也可以称为候选时隙的集合。
在一种可能的设计中，上述候选时间资源的集合还可以不是由基站通过高层信令指示的，而是预定义的，或者是由终端自己确定的。
可选地，终端或终端的芯片将除了第一时间资源之外的所有时间资源，或除了第一时间资源和预留资源之外的所有时间资源中的第一时隙构成该候选时间资源的集合，其中，第一时隙指的是包含的符号的传输方向可配置的时隙，也可以理解为，第一时隙为时隙格式可配置的时隙，其中，时隙格式(slot format)指的是时隙中的符号的传输方向。
可选地，终端或终端的芯片将终端当前所在的系统帧中，除了第一时间资源之外的其它时间资源，或除了第一时间资源和预留资源之外的其他时间资源，中的第二时隙构成该候选时间资源的集合，其中，第二时隙指的是包含的符号的传输方向可配置的时隙。
可选地，终端或终端的芯片将分配给终端的时间资源中，除了第一时间资源之外的其它时间资源，或除了第一时间资源和预留资源之外的其他时间资源，中的第三时隙构成该候选时间资源的集合，其中，第三时隙指的是包含的符号的传输方向可配置的时隙。
在一种可能的设计中，接收来自所述基站的第三高层信令，所述第三高层信令用于指示第二频率资源，所述第二频率资源为所述第一频率资源的子集；所述时隙中的上行符号和所述第二频率资源能够用于免调度的上行传输。终端在时间维度上，可在时隙的上行符号上免调度的上行传输，在频率维度上，可选地，可以在第一频率资源上免调度的上行传输，可选地，还可以是在第二频率资源上免调度的上行传输，该第二频率资源是由基站通过第三高层信令指示的，该第二频率资源为第一频率资源的子集，即第二频率资源可以与第一频率资源相等，也可以是第一频率资源中的部分(即真子集)。可选地，当第二频率资源等于第一频率资源时，基站还可以不发送上述第三高层信令，即当基站不发送上述第三高层信令时，则可以预定义终端的第二频率资源等于第一频率资源。
在一种可能的设计中，接收来自所述基站的指示信息，所述指示信息用于指示第二时间资源，所述时间资源和所述第一频率资源之外的频率资源能够用于免调度的上 行传输。该方法中，基站通过指示信息，指示了第二时间资源，终端则在第二时间资源和第一频率资源之外的频率资源用于免调度的上行传输，从而在第一频率之外，增加了用于免调度的上行传输的频率资源，进一步增加了用于免调度的上行传输的资源，可进一步降低时延和提高业务可靠性。
在一种可能的设计中，接收上行调度授权，所述上行调度授权用于指示调度的第三时间资源和第三频率资源；其中，所述第三时间资源所在的时隙中未使用的上行符号和所述第三频率资源也能够用于免调度的上行传输。该方法中，给出了另一种确定能够用于免调度的上行传输的方法，即由基站向终端发送上行调度授权，用于指示调度的第三时间资源和第三频率资源，当第三时间资源有时隙的上行符号未使用时，则可以通过该未使用的上行符号，以及第三频率资源，免调度的上行传输，因而，进一步地增加了用于免调度的上行传输的资源，可进一步降低时延和提高业务可靠性。
在一种可能的设计中在所述能够用于免调度的上行传输的资源上发送数据。
第二方面，提供一种无线通信方法，该方法可由基站或基站内的芯片执行。该方法包括：向终端发送第一高层信令，所述第一高层信令用于配置第一时间资源和第一频率资源，所述第一时间资源和第一频率资源能够用于免调度的上行传输；向所述终端发送下行控制信息，所述下行控制信息用于指示时隙的格式，所述格式指示了所述时隙中的符号的传输方向；其中，所述时隙中的上行符号为能够用于免调度的上行传输的时间资源。
在一种可能的设计中，向所述终端发送第二高层信令，所述第二高层信令用于指示候选时隙的集合，所述时隙属于所述候选时隙的集合。
在一种可能的设计中，向所述终端发送第三高层信令，所述第三高层信令用于指示第二频率资源，所述第二频率资源为所述第一频率资源的子集；所述时隙中的上行符号和所述第二频率资源能够用于免调度的上行传输。
在一种可能的设计中，向所述终端发送指示信息，所述指示信息用于指示第二时间资源，所述时间资源和所述第一频率资源之外的频率资源能够用于免调度的上行传输。
在一种可能的设计中，向所述终端发送上行调度授权，所述上行调度授权用于指示调度的第三时间资源和第三频率资源；其中，所述第三时间资源所在的时隙中未使用的上行符号和所述第三频率资源也能够用于免调度的上行传输。
在一种可能的设计中，接收所述终端在所述能够用于免调度的上行传输的资源上发送的数据。
第三方面，本申请提供一种装置，该装置可以是终端，也可以是终端内的芯片。该装置具有实现上述第一方面的各实施例的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
在一种可能的设计中，当该装置为终端时，终端包括：处理单元和通信单元，所述处理单元例如可以是处理器，所述通信单元例如可以是收发器，所述收发器包括射频电路，可选地，所述终端还包括存储单元，该存储单元例如可以是存储器。当终端包括存储单元时，该存储单元用于存储计算机执行指令，该处理单元与该存储单元连接，该处理单元执行该存储单元存储的计算机执行指令，以使该终端执行上述第一方 面任意一项的无线通信方法。
在另一种可能的设计中，当该装置为终端内的芯片时，芯片包括：处理单元和通信单元，所述处理单元例如可以是处理器，所述通信单元例如可以是输入/输出接口、管脚或电路等。该处理单元可执行存储单元存储的计算机执行指令，以使该终端内的芯片执行上述第一方面任意一项的无线通信方法。可选地，所述存储单元为所述芯片内的存储单元，如寄存器、缓存等，所述存储单元还可以是所述终端内的位于所述芯片外部的存储单元，如只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)等。
其中，上述任一处提到的处理器，可以是一个通用中央处理器(CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制上述第一方面无线通信方法的程序执行的集成电路。
第四方面，本申请提供一种装置，该装置可以是基站，也可以是基站内的芯片。该装置具有实现上述第二方面的各实施例的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
在一种可能的设计中，当该装置为基站时，基站包括：处理单元和通信单元，所述处理单元例如可以是处理器，所述通信单元例如可以是收发器，所述收发器包括射频电路，可选地，所述基站还包括存储单元，该存储单元例如可以是存储器。当基站包括存储单元时，该存储单元用于存储计算机执行指令，该处理单元与该存储单元连接，该处理单元执行该存储单元存储的计算机执行指令，以使该基站执行上述第二方面任意一项的无线通信方法。
在另一种可能的设计中，当该装置为基站内的芯片时，芯片包括：处理单元和通信单元，所述处理单元例如可以是处理器，所述通信单元例如可以是输入/输出接口、管脚或电路等。该处理单元可执行存储单元存储的计算机执行指令，以使该基站内的芯片执行上述第二方面任意一项的无线通信方法。可选地，所述存储单元为所述芯片内的存储单元，如寄存器、缓存等，所述存储单元还可以是所述基站内的位于所述芯片外部的存储单元，如ROM或可存储静态信息和指令的其他类型的静态存储设备，RAM等。
其中，上述任一处提到的处理器，可以是一个CPU，微处理器，ASIC，或一个或多个用于控制上述第二方面无线通信方法的程序执行的集成电路。
第五方面，本申请还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述第一方面所述的方法。所述计算机例如可以是终端。
第六方面，本申请还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述第二方面所述的方法。所述计算机例如可以是基站。
第七方面，本申请提供了一种计算机程序产品。该计算机程序产品包括计算机软件指令，该计算机软件指令可通过处理器进行加载来实现上述第一方面中任意一项的无线通信方法中的流程。
第八方面，本申请提供了一种计算机程序产品。该计算机程序产品包括计算机软 件指令，该计算机软件指令可通过处理器进行加载来实现上述第二方面中任意一项的无线通信方法中的流程。
另外，第二方面至第八方面中任一种设计方式所带来的技术效果可参见第一方面中不同设计方式所带来的技术效果，此处不再赘述。
本发明的这些方面或其他方面在以下实施例的描述中会更加简明易懂。
附图说明
图1为根据背景技术的方法分配时频资源的示意图；
图2为根据背景技术的方法分配时频资源的另一示意图；
图3为本申请的一种可能的网络架构示意图；
图4本申请提供一种无线通信方法；
图5为本申请提供的一种时隙格式示例图；
图6(a)为本申请提供的一种分配时频资源的示意图；
图6(b)为本申请提供的另一种分配时频资源的示意图；
图7(a)为本申请提供的另一种分配时频资源的示意图；
图7(b)为本申请提供的另一种分配时频资源的示意图；
图7(c)为本申请提供的另一种分配时频资源的示意图；
图8(a)为本申请提供的另一种分配时频资源的示意图；
图8(b)为本申请提供的另一种分配时频资源的示意图；
图8(c)为本申请提供的另一种分配时频资源的示意图；
图9为本申请提供的另一种分配时频资源的示意图；
图10为本申请提供的另一种分配时频资源的示意图；
图11为本申请提供的一种装置示意图。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请作进一步地详细描述。
需要说明的的是，本申请的无线通信方法可由装置执行。在网络侧，该装置可以是基站或基站内的芯片，即可以由基站或基站内的芯片执行本申请的无线通信方法；在终端侧，该装置可以是终端或终端内的芯片，即可以由终端或终端内的芯片执行本申请的无线通信方法。
为方便说明，本申请，以装置为基站或终端为例，对无线通信方法进行说明，对于装置为基站内的芯片或终端内的芯片的实现方法，可参考基站或终端的无线通信方法的具体说明，不再重复介绍。
需要说明的是，本申请在提到高层信令时，可以是系统消息(主消息块(Master Information Block，MIB)或系统消息块(System Information Block，SIB)，广播信令，RRC信令，媒体接入控制(Media Access Control，MAC)控制单元(Control Element，CE)等)。例如，本申请下文中出现的第一高层信令、第二高层信令、第三高层信令，均可以是上述几种信令中的一种或几种，此处做统一说明，后续不再赘述。
在长期演进(long term evolution，LTE)中，通常1个时隙中所有符号固定的用于上行或者下行。尤其对于时分双工(Time Division Duplexing，TDD)系统，整个时隙 (slot)用于上行或者下行，比较欠缺灵活，尤其是对于短时延业务局限较大。
在5G新空口(New Radio，NR)标准化工作中，为满足短时延业务的要求，支持灵活的时隙结构，即在1个时隙可全部用于上行或者下行，或有些符号用于上行，有些符号用于下行。并可使用终端组公共物理下行控制信道(Group Common Physical DownLink Control Channel，Group Common PDCCH)指示时隙结构，时隙结构也可理解为时隙格式(Slot Format)，或时隙格式相关信息(Slot format related information)，基站发送Group Common PDCCH,终端检测Group Common PDCCH，获取时隙格式，其中，时隙格式指示了在slot内哪些符号是上行，哪些符号是下行，哪些符号是其它，其它指的是不为上行或下行的信息，如空白资源、保护时间(Guard Period，GP)、保留资源或未知资源等。并且，一个Group Common PDCCH可以指示一个或多个slot的时隙格式。
为方便说明，本申请，时间资源包括固定时间资源和灵活时间资源，例如，以时隙为单位，则固定时间资源包括固定时隙，灵活时间资源包括灵活时隙。其中，固定时隙中的所有符号固定的用于上行或下行，也可以理解为，固定时隙中的每个符号的传输方向由基站通过高层信令半静态配置的。灵活时隙中的每个符号的传输方向是可变的，具体地，是由基站通过下行控制信息动态指示每次传输时所使用的时隙中每个符号的传输方向。
例如，固定时隙中包括固定上行符号(fixed uplink symbol)或固定下行符号(fixed downlink symbol)。灵活时隙可称为flexible slot，flexible slot中的每个符号的传输方向是在使用时由基站动态指示。
上述固定时间资源和灵活时间资源也可以以符号为单位，例如一个时隙中部分符号由高层信令半静态的配置固定用于下行，或者一个时隙中部分符号由高层信令半静态的配置固定用于上行，或者一个时隙中部分符号由高层信令半静态的配置固定用于下行，部分符号由高层信令半静态的配置固定用于上行。上述固定时间资源和灵活时间资源还可以以多个时隙为单位，本发明对此不做限定。
除了上述固定时间资源和灵活时间资源，还可以有预留资源(reserved resource)。如果终端被配置了预留资源，则终端在该预留资源上不做任何假设。不做任何假设的意思是终端认为在该预留资源上不会发生下行的传输和上行的传输。该预留资源可以由基站通过高层信令(例如，系统信息块(System Information Block，SIB)或RRC无线资源控制(Radio Resource Control，RRC))、广播信令(例如，物理广播信道(Physical Broadcast Channel，PBCH)承载的信令、MAC层信令、物理层信令(例如，下行控制信息(Downlink Control Information，DCI))配置给终端，本发明对此不做限定。
因此，基于背景技术中分配免调度的上行传输的资源的方法，可为终端配置固定上行时隙，即为终端固定上行时间资源，以及为终端分配某段固定的频率资源，用于传输在分配的时频资源上进行免调度的上行数据的传输。
如图1所示，为根据背景技术的方法分配时频资源的示意图。其中，分配的时间维度的时间资源为固定上行时间资源，例如为固定上行时隙，本申请中，也称为第一时间资源；分配的频率维度的频率资源为第一频率资源。
需要说明的是，图中只是示出了第一时间资源中的一部分，实际上，第一时间资 源可以是周期性的资源，在其他时间上，也可包括第一时间资源，为方便说明，本申请只是示出了部分第一时间资源，后续不再赘述。
因此，基于背景技术中的时频资源分配方法，只能在第一时间资源和第一频率资源构成的时频资源，即图1中的时频资源“1”上进行免调度的上行数据的传输。
基于图1所示的方法，当终端当前处于时频资源“2”所在的时间区间，且需要进行Grant free的上行传输，即进行免调度的上行传输，由于时频资源“2”并没有被配置为可进行Grant free的上行传输，因此，终端需要等待下一个周期到达，在其中的被配置为可进行Grant free的上行传输的时频资源上进行Grant free的上行传输，例如，如图2所示，为根据背景技术的方法分配时频资源的另一示意图，其中的时频资源“5”为下一周期的被配置为可进行Grant free的上行传输的时频资源，该时频资源在时间维度上称为第一时间资源，在频率维度上称为第一频率资源。因此，终端可在时频资源“5”上进行Grant free的上行传输，但造成了终端进行Grant free的上行传输的时延。甚至是，如果后续周期中没有可用于Grant free的上行传输的时频资源，则还会导致资源不够用，传输竞争和冲突增大，无法保证可靠性业务的高可靠性要求。
为解决上述问题，提高终端业务对低时延和高可靠的要求，本申请提出一种无线通信方法，终端接收来自基站的第一高层信令，所述第一高层信令用于配置第一时间资源和第一频率资源，所述第一时间资源和第一频率资源能够用于免调度的上行传输；所述终端接收下行控制信息，所述下行控制信息用于指示时隙的格式，所述格式指示了所述时隙中的符号的传输方向；其中，所述时隙中的上行符号为能够用于免调度的上行传输的时间资源。该方法中，基站除了通过第一高层信令指示了能够用于免调度的上行传输的第一时间资源和第一频率资源之外，还通过下行控制信息指示了时隙的格式，且时隙中的上行符号也能够用于免调度的上行传输，因而，基站可以通过下行控制信息为终端动态分配能够用于免调度的上行传输的时间资源，当第一时间资源不能使用或不够使用时，可使用该动态分配的时间资源，用于免调度的上行传输，从而可保证业务的低时延要求和高可靠性要求。
下面结合附图，对本申请提供的无线通信方法做具体描述。
如图3所示，为本申请的一种可能的网络架构示意图。包括至少一个终端10，通过无线接口与基站20通信，为清楚起见，图中只示出一个基站和一个终端。
其中，终端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、增强现实(augmented reality，AR)终端、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等。
基站，是一种将终端接入到无线网络的设备，包括但不限于：5G中的gNB、演进型节点B(evolved node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(例如，home evolved nodeB，或home node B， HNB)、基带单元(BaseBand Unit，BBU)、基站(g nodeB，gNB)、传输点(transmitting and receiving point，TRP)、发射点(transmitting point，TP)、移动交换中心等，此外，还可以包括Wifi接入点(access point，AP)等。
本申请各个实施例可以用于免调度(英文可以为Grant Free)传输。Grant free传输可以解决未来网络大量的MTC类业务，以及满足低时延、高可靠的业务传输。Grant free传输可以针对的是上行数据传输。本领域技术人员可以知道，Grant free传输也可以叫做其他名称,比如叫做自发接入、自发多址接入、或者基于竞争的多址接入等。本申请各个实施例可以运用于使用非正交多址接入的通信系统中。
例如有如下三种的Grant free传输：
类型1:上行数据传输不需要基站下发的Grant信息，只基于RRC配置/重配置的信息。
类型2:上行数据传输不需要基站下发的Grant信息,需要基于RRC配置信息和物理层信令(比如，L1信令(signalling))指示激活/去激活Grant free传输。
类型3:上行数据传输不需要基站下发的Grant信息，基于RRC配置/重配置的信息，允许物理层信令(如，L1 signalling)修改RRC信令半静态配置的一些参数，但不需要物理层信令(如，L1 signalling)激活/去激活Grant free传输。
如图4所示，本申请提供一种无线通信方法，该方法适用于图3所示的网络架构，该方法包括以下步骤：
步骤401、基站向终端发送第一高层信令，终端接收来自基站的第一高层信令。
在一种实现方式中，当Grant free是类型1或类型3时，该第一高层信令用于配置第一时间资源和第一频率资源，所述第一时间资源和第一频率资源能够用于免调度的上行传输。其中，第一时间资源，例如可以是时隙中的固定上行符号，即第一时间资源为传输方向固定为上行的符号。
如图1和图2所示，其中的时频资源“1”和“5”在时间维度上即为第一时间资源，在频率维度上即为第一频率资源。
即，通过上述步骤401，基站为终端分配了能够用于免调度的上行传输的时频资源，并且分配的时间资源为第一时间资源，第一时间资源中的符号固定为上行。
在另一种实现方式中，当Grant free是类型2时，第一高层信令则需要指示第一时间资源，不需要指示第一频率资源。对于第一频率资源，可由基站通过L1层的信令指示。
另外对于Grant free是类型3时的另一种实现方式中，第一高层信令也可以指示第一时间资源而不指示第一频率资源。对于第一频率资源，可由基站通过L1层的信令指示。
步骤402、基站向终端发送下行控制信息，终端接收来自基站的下行控制信息。
该下行控制信息用于指示时隙的格式，该格式(format)也可称为slot format，所述格式指示了时隙中的符号的传输方向，并且，时隙中的上行符号为能够用于免调度的上行传输的时间资源。
其中，可以是时隙中的所有上行符号能够用于免调度的上行传输，也可以是时隙中的部分上行符号能够用于免调度的上行传输。
以及，针对时隙中能够用于免调度的上行传输的上行符号，可以是使用这些上行 符号中的所有符号进行免调度的上行传输，也可以只使用这些符号中的部分符号进行免调度的上行传输。
通过图4所示的无线通信方法，基站除了通过第一高层信令指示了能够用于免调度的上行传输的第一时间资源和第一频率资源之外，还通过下行控制信息指示了时隙的格式，且时隙中的上行符号也能够用于免调度的上行传输，因而，基站可以通过下行控制信息为终端动态分配能够用于免调度的上行传输的时间资源，当第一时间资源不能使用或不够使用时，可使用该动态分配的时间资源，用于免调度的上行传输，从而可保证业务的低时延要求和高可靠性要求。
上述步骤402中，基站通过下行控制信息指示的时隙的格式可根据实际情况而定，以一个时隙包括7个符号为例，每个符号的传输方向可以是上行、下行或未知(即unknown或reserved或GP中的至少一种)，因而，针对每个时隙，有3 7种格式，具体地，一个时隙使用哪种格式，是由基站进行指示的；再比如，若一个时隙包括14个符号，则每个时隙有3 14种格式。
当然，实际使用中，不是所有的格式都会使用，一般地，会预先定义好使用的哪几种格式，然后由基站通过指示信息指示选择哪种格式。
例如，参考图5，为本申请提供的一种时隙格式示例图，其中，假设协议定义了使用的四种时隙格式，其中，第一种时隙格式为：所有符号均为下行符号，用“00”表示，第二种时隙格式为：所有符号均为上行符号，用“01”表示，第三种时隙格式为：连续L个下行符号+连接M个未知符号+连续N个上行符号，L+M+N等于一个时隙中包含的符号数，且L>N，L，M，N的取值都是协议定义的，用“10”表示，第四种时隙格式为：连续L个下行符号+连接M个未知符号+连续N个上行符号，L+M+N等于一个时隙中包含的符号数，且L<N，L，M，N的取值都是协议定义的，用“11”表示。
基站和终端均预配置这几种格式信息，因此针对一个时隙，例如，当基站指示的时隙格式为“00”时，则终端知道该时隙的格式为：所有符号用于下行；再比如，当基站指示的时隙格式为“11”时，则终端知道该时隙的格式为：连续L个下行符号+连接M个未知符号+连续N个上行符号，且L<N，L，M，N的取值都是协议定义的。
上述步骤402中，基站通过下行控制信息指示了时隙的格式，具体指示的是候选时间资源集合中时隙的格式。在实际应用中，有多种确定时间资源的集合的方法，下面示例性地介绍几种。
其中，候选时间资源的集合可以是一个或多个无线帧的集合，每个无线帧包括多个子帧，每个子帧包括多个时隙，从而，候选时间资源的集合可看做是包括多个时隙。
候选时间资源的集合还可以是一个或多个子帧的集合，每个子帧包括多个时隙，从而，候选时间资源的集合可看做是包括多个时隙。
候选时间资源的集合还可以直接是一个或多个时隙的集合，该情形下，候选时间资源的集合也可以称为候选时隙的集合。
方法一、基站指示候选时间资源的集合
若使用该方法一，则在上述步骤402之前或之后，还包括：基站向终端发送第二高层信令，所述第二高层信令用于指示候选时间资源的集合，并且，上述步骤402中，下行控制信息指示的时隙的格式，即为该候选时间资源的集合中的时隙的格式，也可 以理解为，基站下发的控制信息，指示了第二高层信令指示的候选时间资源的集合中的时隙的格式。
因此，该方法一中，基站显示地通知终端，通过下行控制信息指示的时隙的格式，是候选时间资源的集合中的时隙的格式。
方法二、预定义候选时间资源的集合
该方法二，基站和终端预定义，候选时间资源的集合中的时隙为除第一时间资源之外的时间资源上的时隙，因此，当终端确定第一时间资源时，即可确定候选时间资源的集合。在方法二的另一种实现方式中，基站和终端预定义，候选时间资源的集合中的时隙为除第一时间资源和预留资源之外的时间资源上的时隙，因此，当终端确定第一时间资源和预留资源时，即可确定候选时间资源的集合。该方法具体还可以分为以下几种实现方式：
实现方式一、终端将除了第一时间资源之外的所有时间资源，或除了第一时间资源和预留资源之外的所有时间资源，中的第一时隙构成该候选时间资源的集合，其中，第一时隙指的是包含的符号的传输方向可灵活配置的时隙，也可以理解为，第一时隙为时隙格式可灵活配置的时隙，即，其时隙格式是由基站通过下行控制信息动态指示的，例如通过终端组公用的下行控制信道携带所述时隙格式的指示信息，其中，时隙格式(slot format)指的是时隙中的符号的传输方向。
实现方式二、终端将终端当前所在的系统帧中，除了第一时间资源之外的其它时间资源，或除了第一时间资源和预留资源之外的其他时间资源，中的第二时隙构成该候选时间资源的集合，其中，第二时隙指的是包含的符号的传输方向可灵活配置的时隙，即，其时隙格式是由基站通过下行控制信息动态指示的，例如通过终端组公用的下行控制信道携带所述时隙格式的指示信息。
实现方式三、终端将分配给终端的时间资源中，除了第一时间资源之外的其它时间资源，或除了第一时间资源和预留资源之外的其他时间资源，中的第三时隙构成该候选时间资源的集合，其中，第三时隙指的是包含的符号的传输方向可灵活配置的时隙，即，其时隙格式是由基站通过下行控制信息动态指示的，例如通过终端组公用的下行控制信道携带所述时隙格式的指示信息。
因此，通过上述方法一或方法二，终端可以确定下行控制信息中指示的是哪些时隙的格式。具体地，指示每个时隙的格式时，可以使用比特位来表示，例如，如图5所示，当时隙格式预定义只有4种时，指示的每个时隙的格式，可以是“00”、“01”、“10”、“11”中的一种。当然，如果预定义的格式有K种，K大于1，则指示每个时隙需要的比特位数为
Figure PCTCN2018100114-appb-000001
终端根据基站指示的时隙的格式，即可确定候选时间资源的集合中的每个时隙的格式，进而确定每个时隙中哪些符号被基站指示为上行符号，并将该上行符号用于免调度的上行传输。
通过上述各方法实施例，指示了终端可进行免调度的上行传输的时间资源，对于与该时间资源相对应的频率资源，则也可以有多种实现方式，下面分别介绍。
为方便说明，与下行控制信息指示的时间资源所对应的频率资源，本申请称为第二频率资源，有以下两种实现方式。
实现方式一、第二频率资源等于第一频率资源。
该实现方式中，通过下行控制信息指示的时间资源所对应的频率资源与第一频率资源相同。则终端确定第二频率资源的方法可以有以下两种具体实现方式，一种是预定义第二频率资源就是等于第一频率资源，因此终端可根据第一频率资源确定第二频率资源，或者也可以理解为，终端直接使用第一频率资源，另一种则是由基站通过第三高层信令指示，即在上述步骤402之前或之后，还包括：终端接收来自基站的第三高层信令，所述第三高层信令用于指示第二频率资源，所述第二频率资源等于第一频率资源。
基于实现方式一，则终端可在下行控制信息指示的时隙中的上行符号，以及该第二频率资源上，进行免调度的上行传输。
如图6(a)所示，为本申请提供的一种分配时频资源的示意图，其中，第二频率资源等于第一频率资源，基站通过下行控制信息指示的时间资源为灵活时间资源中被指示为上行传输的符号。例如，如图6(a)所示，基站指示的时间资源的格式为图5所示的第四种时隙格式。当然，图中只出了指示的一个时隙的时间资源，基站也可以指示候选时间资源的集合中的多个时隙的格式。
参照图6(b)，为本申请提供的另一种分配时频资源的示意图，其中，基站通过下行控制信息指示了能够用于免调度的上行传输的时间资源，具体地为上行符号，结合第二频率资源，构成可用于上行Grant free的时频资源，如图6(b)所示，为时频资源“2”中的上行符号和第二频率构成的时频资源、时频资源“5”的全部(即时频资源“5”中的时隙均为上行符号)及时频资源“6”中的上行符号和第二频率构成的时频资源。
通过上述实现方式一，通过基站指示第二频率资源或者预定义第二频率资源，与第一频率资源相同，再结合基站通过下行控制信息指示的时间资源的格式，确定上行符号，从而构成可用于免调度的上行传输的时频资源。
实现方式二、第二频率资源为第一频率资源的子集。
该实现方式中，通过下行控制信息指示的时间资源所对应的频率资源，即第二频率资源，为第一频率资源的子集，这里，子集的含义为：第二频率资源与第一频率资源相同，或者，第二频率资源为第一频率资源的真子集。
当第二频率资源与第一频率资源相同时，可参考上述实现方式一，这里不再赘述。
当第二频率资源为第一频率资源的真子集时，则由基站通过第三高层信令指示，即在上述步骤402之前或之后，还包括：终端接收来自基站的第三高层信令，所述第三高层信令用于指示第二频率资源，所述第二频率资源为第一频率资源的真子集。
基于实现方式二，则终端可在下行控制信息指示的时隙中的上行符号，以及该第二频率资源上，进行免调度的上行传输。
如图7(a)所示，为本申请提供的另一种分配时频资源的示意图，其中，第二频率资源为第一频率资源真子集，基站通过下行控制信息指示的时间资源为灵活时间资源中被指示为上行传输的符号。例如，如图7(a)所示，基站指示的时间资源的格式为图5所示的第四种时隙格式。当然，图中只出了指示的一个时隙的时间资源，基站也可以指示候选时间资源的集合中的多个时隙的格式。
参照图7(b)，为本申请提供的另一种分配时频资源的示意图，其中，基站通过下行控制信息指示了能够用于免调度的上行传输的时间资源，具体地为上行符号，结合第二频率资源，构成可用于上行Grant free的时频资源，如图7(b)所示，为时频资源“2” 中的上行符号和第二频率构成的时频资源、时频资源“5”中的上行符号和第二频率构成的时频资源及时频资源“6”中的上行符号和第二频率构成的时频资源。
当然，在另一种实现方式中，基站通过第三高层信令指示的第二频率资源，还可以是针对下行控制信息中指示的每个时隙，都有一个对应的第二频率资源，也可以理解为，不同时隙的第二频率资源可以相同，也可以不同，如图7(c)，为本申请提供的另一种分配时频资源的示意图，其中，在时频资源“2”上指示的第二频率资源、在时频资源“5”上指示的第二频率资源、在时频资源“6”上指示的第二频率资源，互不相同。
需要说明的是，在实际使用中，如果采用该实现方式二，则采用如图7(b)的实现方式还是采用如图7(c)所示的实现方式，可根据需要而定，本申请不做限定。
通过上述实现方式二，通过基站指示第二频率资源，再结合基站通过下行控制信息指示的时间资源的格式，确定上行符号，从而构成可用于免调度的上行传输的时频资源。
在另外的可能的设计方式中，本申请，进一步地，还提供一种确定可用于免调度的上行传输的时频资源的确定方法，可选地，在上述步骤402之前或之后，还包括：基站向发送指示信息，所述指示信息用于指示第二时间资源，所述时间资源和所述第一频率资源之外的频率资源能够用于免调度的上行传输，其中，为方便说明，将第一频率资源之外的频率资源，称为第四频率资源。该第四频率资源可以理解为，基站为终端分配的可用频率资源中除了第一频率资源之外的其它频率资源。
其中，该指示信息可以是显示的指示信息，如由Group Common PDCCH携带，或者由隐式指示的方式，由Group Common的搜索空间(Search Space)的第一个控制信道单元(control channel element，CCE)隐式指示。
当终端接收到指示信息后，获取其中指示的第二时间资源，并根据预先预定，确定该第二时间资源对应所使用的频率资源为第四频率资源，因此，终端确定第二时间资源与第四频率资源构成的时频资源，为可用于免调度的上行传输的时频资源。
如图8(a)所示，为本申请提供的另一种分配时频资源的示意图，其中，第二时间资源与第一时间资源存在部分重叠，当然，也可以没有重叠。
在另外的实现方式中，还可以将该实现方式与上述实现方式一和实现方式二进行结合使用。例如，可以是通过基站下发高层信令，额外指示第四频率资源中的部分频率资源，称为第五频率资源，作为第二时间资源对应所使用的频率资源。如图8(b)所示，为本申请提供的另一种分配时频资源的示意图，其中，终端确定第二时间资源与第五频率资源构成的时频资源，为可用于免调度的上行传输的时频资源。
当然，基站下发高层信令指示第五频率资源，还可以是针对第二时间资源中的每个时隙，都有一个对应的第五频率资源，也可以理解为，不同时隙的第五频率资源可以相同，也可以不同，如图8(c)，为本申请提供的另一种分配时频资源的示意图，其中，在时频资源“4”上指示的第五频率资源与在时频资源“3”上指示的第五频率资源互不相同。
在另外的实现方式中，还可以是将图8(a)～图8(c)所示的实现方式与图7(a)～图7(c)、图6(a)～图6(b)所示的实现方式相结合，形成新的实现方式。例如，如图9所示，为本申请提供的另一种分配时频资源的示意图，该实现方式是由图8(a)与图6(a)所示的实 现方式相结合形成的实现方式。对于其它结合的实现方式，本申请不做进行图示。
在另外的可能的设计方式中，本申请，进一步地，还提供一种确定可用于免调度的上行传输的时频资源的确定方法，可选地，在上述步骤402之前或之后，还包括：基站向终端发送上行调度授权，所述上行调度授权用于指示调度的第三时间资源和第三频率资源；其中，所述第三时间资源所在的时隙中未使用的上行符号和所述第三频率资源也能够用于免调度的上行传输。
在该实现方式中，基站通过上行调度，指示终端可使用的上行资源，如果其中有部分上行时频资源未使用，则可以将该未使用的上行时频资源，用于进行免调度的上行传输。
该实现方式可以与上述任一实现方式结合来使用，即可以与图6(a)～图6(b)、图7(a)～图7(c)、图8(a)～图8(c)中的任一实现方式相结合来使用。
如图10所示，为本申请提供的另一种分配时频资源的示意图，该实现方式可与上述图6(a)～图6(b)、图7(a)～图7(c)、图8(a)～图8(c)、图9中的任一实现方式相结合来使用，其中，图10是以与图7(a)所示的方式相结合为例进行说明。其中，基站通过上行调度授权，指示了三个时隙中的部分符号作为上行调度资源，具体地，分别在时频资源“2”、“3”、“4”中指示了第三时间资源和第三频率资源。
其中，第三时间资源所在的时隙均由未使用的上行符号，因此，该三个时隙中未使用的上行符号，可由终端作为免调度的上行资源，来传输上行数据。
该方式，给出了另一种确定能够用于免调度的上行传输的方法，即由基站向终端发送上行调度授权，用于指示调度的第三时间资源和第三频率资源，当第三时间资源所在的时隙中存在未使用的上行符号时，则可以通过该未使用的上行的符号，以及第三频率资源，免调度的上行传输，因而，进一步地增加了用于免调度的上行传输的资源，可进一步降低时延和提高业务可靠性。
本申请提供了多种为终端动态分配免调度的上行资源的方法，可以是图6(a)～图6(b)、图7(a)～图7(c)、图8(a)～图8(c)、图9、图10中的任一实现方式，也可以是任两种或多种实现方式的结合。基于这些实现方式，可为终端动态分配免调度的上行资源，从而可以满足终端的某些业务对于低时延和高可靠性的需求。
本申请通过以上任一实现方式或多种实现方式的组合，为终端动态分配能够用于免调度的上行传输的资源之后，终端可在所述能够用于免调度的上行传输的资源上发送数据。
如图11所示，为本申请提供的一种装置示意图，该装置可以是上述任一实施例中的终端，也可以是上述任一实施例中的基站，该装置可以是图3所示的系统架构中的终端或终端内的芯片，还可以是图3所示的系统架构中的基站或基站内的芯片。
该装置200可用于指示上述任一无线通信方法中由终端或基站执行的方法。
该装置200包括至少一个处理单元21，通信单元22，可选地，还包括存储单元23。所述处理单元21、通信单元22、存储单元23通过通信总线连接。
处理单元21可以是一个通用中央处理器(CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制本发明方案程序执行的集成电路。
通信总线可包括一通路，在上述单元之间传送信息。
所述通信单元22，可以是具有收发功能的装置，用于与其他设备或通信网络通信，如以太网，无线接入网(RAN)，无线局域网(wireless local area networks，WLAN)等。
存储单元23可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(Electrically erasable programmabler-only memory，EEPROM)、只读光盘(compact disc read-only memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储单元23可以是独立存在，通过通信总线与处理单元21相连接。存储单元23也可以和处理单元集成在一起。其中，所述存储单元23用于存储执行本发明方案的应用程序代码，并由处理单元21来控制执行。所述处理单元21用于执行所述存储单元23中存储的应用程序代码。
在具体实现中，作为一种实施例，处理单元21可以包括一个或多个CPU，例如图11中的CPU0和CPU1。
在具体实现中，作为一种实施例，装置200可以包括多个处理单元，例如图11中的处理单元21和处理单元28。这些处理单元中的每一个可以是一个单核(single-CPU)处理器，也可以是一个多核(multi-CPU)处理器，这里的处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。
在一种可能的设计中，当该装置为基站或终端时，处理单元21例如可以是处理器，通信单元22例如可以是收发器，所述收发器包括射频电路，当该装置还包括存储单元23时，该存储单元23用于存储计算机执行指令，该处理单元21与该存储单元23连接，该处理单元21执行该存储单元23存储的计算机执行指令，以使该基站或终端执行上述任一实施例的无线通信方法。
在另一种可能的设计中，当该装置为基站内的芯片或终端内的芯片时，处理单元21例如可以是处理器，通信单元22例如可以是输入/输出接口、管脚或电路等。该处理单元21可执行存储单元存储的计算机执行指令，以使该芯片执行上述实施例中的无线通信方法。可选地，所述存储单元为所述芯片内的存储单元，如寄存器、缓存等，所述存储单元还可以是所述基站或终端内位于所述芯片外部的存储单元，如ROM或可存储静态信息和指令的其他类型的静态存储设备，RAM等。
其中，芯片执行无线通信方法，可以理解为：芯片结合装置内的其它部件，来完成无线通信方法。
比如，当芯片为终端内的芯片时，芯片的通信单元与终端的收发器连接，终端的收发器可接收来自基站的高层信令，从而芯片的通信单元可接收到来自基站的第一高层信令，进一步地，终端的处理器可控制终端的收发器接收下行控制信息，则芯片的通信单元可从收发器接收到下行控制信息，并发送给芯片的处理单元，从而，由终端的芯片实现本发明实施例的无线通信方法。
再比如，当芯片为基站内的芯片时，芯片的通信单元与基站的收发器连接，芯片处理单元通过通信单元，向基站的收发器发送高层信令，并由基站的收发器向终端发送第一高层信令，进一步地，芯片的处理单元通过通信单元，向基站的收发器发送下 行控制信息，然后基站的收发器向终端发送所述下行控制信息，从而，由基站的芯片实现本发明实施例的无线通信方法。
例如在采用图11所示的方法对装置进行划分时，通过处理单元和通信单元的协作，可使该装置实现本申请上述任一实施例中的无线通信方法。
例如，当图11所示的装置为终端或终端的芯片时，则所述处理单元，用于控制所述通信单元：接收来自基站的第一高层信令，所述第一高层信令用于配置第一时间资源和第一频率资源，所述第一时间资源和第一频率资源能够用于免调度的上行传输；接收下行控制信息，所述下行控制信息用于指示时隙的格式，所述格式指示了所述时隙中的符号的传输方向；其中，所述时隙中的上行符号为能够用于免调度的上行传输的时间资源。
应理解，该终端或终端的芯片可以用于实现本发明实施例的无线通信方法中由终端执行的步骤，相关特征可以参照上文，此处不再赘述。
例如，当图11所示的装置为基站或基站的芯片时，则所述处理单元，用于控制所述通信单元：向终端发送第一高层信令，所述第一高层信令用于配置第一时间资源和第一频率资源，所述第一时间资源和第一频率资源能够用于免调度的上行传输；向所述终端发送下行控制信息，所述下行控制信息用于指示时隙的格式，所述格式指示了所述时隙中的符号的传输方向；其中，所述时隙中的上行符号为能够用于免调度的上行传输的时间资源。
应理解，该基站或基站的芯片可以用于实现本发明实施例的无线通信方法中由基站执行的步骤，相关特征可以参照上文，此处不再赘述。
本申请还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述无线通信方法。该计算机可以是终端或基站。
本申请提供了一种计算机程序产品。该计算机程序产品包括计算机软件指令，该计算机软件指令可通过处理器进行加载来实现上述任一实施例的无线通信方法中的流程。
本申请说明书的上述描述可以使得本领域技术任何可以利用或实现本申请的内容，任何基于所公开内容的修改都应该被认为是本领域显而易见的，本申请所描述的基本原则可以应用到其它变形中而不偏离本申请的发明本质和范围。因此，本申请所公开的内容不仅仅局限于所描述的实施例和设计，还可以扩展到与本申请原则和所公开的新特征一致的最大范围。

Claims (25)

  1. 一种无线通信方法，其特征在于，包括：
    接收来自基站的第一高层信令，所述第一高层信令用于配置第一时间资源和第一频率资源，所述第一时间资源和第一频率资源能够用于免调度的上行传输；
    接收下行控制信息，所述下行控制信息用于指示时隙的格式，所述格式指示了所述时隙中的符号的传输方向；
    其中，所述时隙中的上行符号为能够用于免调度的上行传输的时间资源。
  2. 根据权利要求1所述的方法，其特征在于：
    接收来自所述基站的第二高层信令，所述第二高层信令用于指示候选时隙的集合，所述时隙属于所述候选时隙的集合。
  3. 根据权利要求1所述的方法，其特征在于：
    接收来自所述基站的第三高层信令，所述第三高层信令用于指示第二频率资源，所述第二频率资源为所述第一频率资源的子集；
    所述时隙中的上行符号和所述第二频率资源能够用于免调度的上行传输。
  4. 根据权利要求1至3任一所述的方法，其特征在于，还包括：
    接收来自所述基站的指示信息，所述指示信息用于指示第二时间资源，所述时间资源和所述第一频率资源之外的频率资源能够用于免调度的上行传输。
  5. 根据权利要求1至4任一所述的方法，其特征在于，还包括：
    接收上行调度授权，所述上行调度授权用于指示调度的第三时间资源和第三频率资源；
    其中，所述第三时间资源所在的时隙中未使用的上行符号和所述第三频率资源也能够用于免调度的上行传输。
  6. 根据权利要求1至5任一所述的方法，其特征在于，还包括：
    在所述能够用于免调度的上行传输的资源上发送数据。
  7. 一种无线通信方法，其特征在于，包括：
    向终端发送第一高层信令，所述第一高层信令用于配置第一时间资源和第一频率资源，所述第一时间资源和第一频率资源能够用于免调度的上行传输；
    向所述终端发送下行控制信息，所述下行控制信息用于指示时隙的格式，所述格式指示了所述时隙中的符号的传输方向；
    其中，所述时隙中的上行符号为能够用于免调度的上行传输的时间资源。
  8. 根据权利要求7所述的方法，其特征在于：
    向所述终端发送第二高层信令，所述第二高层信令用于指示候选时隙的集合，所述时隙属于所述候选时隙的集合。
  9. 根据权利要求7所述的方法，其特征在于：
    向所述终端发送第三高层信令，所述第三高层信令用于指示第二频率资源，所述第二频率资源为所述第一频率资源的子集；
    所述时隙中的上行符号和所述第二频率资源能够用于免调度的上行传输。
  10. 根据权利要求7至9任一所述的方法，其特征在于，还包括：
    向所述终端发送指示信息，所述指示信息用于指示第二时间资源，所述时间资源 和所述第一频率资源之外的频率资源能够用于免调度的上行传输。
  11. 根据权利要求7至10任一所述的方法，其特征在于，还包括：
    向所述终端发送上行调度授权，所述上行调度授权用于指示调度的第三时间资源和第三频率资源；
    其中，所述第三时间资源所在的时隙中未使用的上行符号和所述第三频率资源也能够用于免调度的上行传输。
  12. 根据权利要求7至11任一所述的方法，其特征在于，还包括：
    接收所述终端在所述能够用于免调度的上行传输的资源上发送的数据。
  13. 一种装置，其特征在于，包括：处理单元和通信单元；
    所述处理单元，用于控制所述通信单元：
    接收来自基站的第一高层信令，所述第一高层信令用于配置第一时间资源和第一频率资源，所述第一时间资源和第一频率资源能够用于免调度的上行传输；
    接收下行控制信息，所述下行控制信息用于指示时隙的格式，所述格式指示了所述时隙中的符号的传输方向；
    其中，所述时隙中的上行符号为能够用于免调度的上行传输的时间资源。
  14. 根据权利要求13所述的装置，其特征在于，所述处理单元，还用于控制所述通信单元：
    接收来自所述基站的第二高层信令，所述第二高层信令用于指示候选时隙的集合，所述时隙属于所述候选时隙的集合。
  15. 根据权利要求13所述的装置，其特征在于，所述处理单元，还用于控制所述通信单元：
    接收来自所述基站的第三高层信令，所述第三高层信令用于指示第二频率资源，所述第二频率资源为所述第一频率资源的子集；
    所述时隙中的上行符号和所述第二频率资源能够用于免调度的上行传输。
  16. 根据权利要求13至15任一所述的装置，其特征在于，所述处理单元，还用于控制所述通信单元：
    接收来自所述基站的指示信息，所述指示信息用于指示第二时间资源，所述时间资源和所述第一频率资源之外的频率资源能够用于免调度的上行传输。
  17. 根据权利要求13至16任一所述的装置，其特征在于，所述处理单元，还用于控制所述通信单元：
    接收上行调度授权，所述上行调度授权用于指示调度的第三时间资源和第三频率资源；
    其中，所述第三时间资源所在的时隙中未使用的上行符号和所述第三频率资源也能够用于免调度的上行传输。
  18. 根据权利要求13至17任一所述的装置，其特征在于，所述处理单元，还用于控制所述通信单元：
    在所述能够用于免调度的上行传输的资源上发送数据。
  19. 一种装置，其特征在于，包括：处理单元和通信单元；
    所述处理单元，用于控制所述通信单元：
    向终端发送第一高层信令，所述第一高层信令用于配置第一时间资源和第一频率 资源，所述第一时间资源和第一频率资源能够用于免调度的上行传输；
    向所述终端发送下行控制信息，所述下行控制信息用于指示时隙的格式，所述格式指示了所述时隙中的符号的传输方向；
    其中，所述时隙中的上行符号为能够用于免调度的上行传输的时间资源。
  20. 根据权利要求19所述的装置，其特征在于，所述处理单元，还用于控制所述通信单元：
    向所述终端发送第二高层信令，所述第二高层信令用于指示候选时隙的集合，所述时隙属于所述候选时隙的集合。
  21. 根据权利要求19所述的装置，其特征在于，所述处理单元，还用于控制所述通信单元：
    向所述终端发送第三高层信令，所述第三高层信令用于指示第二频率资源，所述第二频率资源为所述第一频率资源的子集；
    所述时隙中的上行符号和所述第二频率资源能够用于免调度的上行传输。
  22. 根据权利要求19至21任一所述的装置，其特征在于，所述处理单元，还用于控制所述通信单元：
    向所述终端发送指示信息，所述指示信息用于指示第二时间资源，所述时间资源和所述第一频率资源之外的频率资源能够用于免调度的上行传输。
  23. 根据权利要求19至22任一所述的装置，其特征在于，所述处理单元，还用于控制所述通信单元：
    向所述终端发送上行调度授权，所述上行调度授权用于指示调度的第三时间资源和第三频率资源；
    其中，所述第三时间资源所在的时隙中未使用的上行符号和所述第三频率资源也能够用于免调度的上行传输。
  24. 根据权利要求19至23任一所述的装置，其特征在于，所述处理单元，还用于控制所述通信单元：
    接收所述终端在所述能够用于免调度的上行传输的资源上发送的数据。
  25. 一种计算机存储介质，其特征在于，所述计算机存储介质存储计算机代码，所述计算机代码被调用时实现如权利要求1-12任意一项所述的方法。
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