WO2020164460A1 - 一种通信方法及装置 - Google Patents

一种通信方法及装置 Download PDF

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Publication number
WO2020164460A1
WO2020164460A1 PCT/CN2020/074669 CN2020074669W WO2020164460A1 WO 2020164460 A1 WO2020164460 A1 WO 2020164460A1 CN 2020074669 W CN2020074669 W CN 2020074669W WO 2020164460 A1 WO2020164460 A1 WO 2020164460A1
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WO
WIPO (PCT)
Prior art keywords
terminal device
configured uplink
message
network device
uplink resource
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PCT/CN2020/074669
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English (en)
French (fr)
Inventor
李军
铁晓磊
米翔
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华为技术有限公司
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Publication of WO2020164460A1 publication Critical patent/WO2020164460A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • This application relates to the field of mobile communication technology, and in particular to a communication method and device.
  • uplink scheduling-free transmission is introduced.
  • the uplink scheduling-free transmission can also be called grant-free transmission or uplink transmission in preconfigured resources or transmission in preconfigured uplink resources, etc. , Hereinafter all referred to as uplink scheduling-free transmission.
  • the base station pre-configures uplink scheduling-free resources for terminal devices, where the uplink scheduling-free resources may also be referred to as preconfigured uplink resources (PUR).
  • PUR preconfigured uplink resources
  • a terminal device in an idle state can use the pre-configured uplink resource to transmit uplink data when the timing advance (TA) is valid.
  • TA timing advance
  • the TA is determined to be valid, the scheduling of the base station is not required, and the uplink data transmission can be directly performed on the pre-configured uplink resource according to the predetermined transmission mode.
  • the effective duration of the pre-configured uplink resource is configured or predefined by the base station for the terminal device, and the terminal device is allowed to use the pre-configured uplink resource when in an idle state within the effective duration. Regardless of whether it is a predefined method or a base station configuration method, the terminal device can only reconfigure the effective duration of the pre-configured uplink resource after the effective duration of the pre-configured uplink resource expires.
  • terminal equipment and base stations can release pre-configured uplink resources only after the effective duration of pre-configured uplink resources has passed. This method of releasing pre-configured uplink resources will also affect the flexibility of uplink scheduling-free resource configuration. .
  • the embodiments of the present application provide a communication method and device for flexibly configuring uplink scheduling-free resources in uplink scheduling-free transmission.
  • the embodiments of the present application provide a communication method, which can be applied to terminal equipment, and can also be applied to structures or devices provided in terminal equipment, such as chips, chip systems, or circuit systems, to integrate
  • the method is applied to a terminal device as an example.
  • the method includes: the terminal device receives the timing advance from the network device, and the terminal device resets the effective duration of the pre-configured uplink resource according to the timing advance.
  • the terminal device does not need to wait until the effective duration of the pre-configured uplink resource expires and then updates the effective duration of the pre-configured uplink resource.
  • the terminal device can actively reset the effective duration of the pre-configured uplink resource according to the time advance, so that the pre-configuration
  • the configuration of the effective duration of the uplink resources is more flexible, which in turn can improve the flexibility of configuring uplink scheduling-free resources.
  • the improvement of this application is not only that the terminal device can actively reset the effective duration of the pre-configured uplink resource, but also through this method, the terminal device resets the effective duration of the pre-configured uplink resource according to the time advance.
  • the time advance sent by the network device it can be determined that the time advance is valid at this time. If the time advance is valid, the pre-configured uplink resources can be used. At this time, the validity of the pre-configured uplink resources is reset. The duration can maximize the use time of the pre-configured uplink resources.
  • resetting the effective duration of the pre-configured uplink resource includes: the terminal device restarts a timer, and the pre-configured uplink resource is valid before the timer expires.
  • the terminal device resets the effective duration of the pre-configured uplink resource by restarting the timer, which is simple and easy to implement.
  • resetting the effective duration of the pre-configured uplink resource includes: the terminal device determines the start time of the first duration according to the receiving time of the timing advance, and the pre-configured uplink resource within the first duration is valid.
  • the terminal device determines the start time of the first duration according to the receiving time of the timing advance. In this way, when the timing advance is determined to be valid, the pre-configured uplink resource effective duration can be reset to maximize the extension. Use time of pre-configured uplink resources.
  • the terminal device before the terminal device receives the timing advance from the network device, the terminal device sends the preamble sequence to the network device.
  • the terminal device after the terminal device receives the time advance from the network device, the terminal device restarts the time advance timer, and the time advance is effective before the time advance timer expires.
  • the preamble sequence is carried on pre-configured uplink resources.
  • the preamble sequence can also be carried by the transmission resource specially configured for the preamble sequence.
  • the preamble sequence is carried on the pre-configured uplink resources without the need to configure new transmission resources for it, which can save communication resources.
  • the timing advance is carried in downlink control information (DCI) or medium access control (MAC) control element (MAC).
  • DCI downlink control information
  • MAC medium access control control element
  • the terminal device is a terminal device in an idle state.
  • the embodiments of the present application provide a communication method, which can be applied to network equipment, and can also be applied to a structure or device provided in the network equipment, such as a chip, a chip system, or a circuit system, to integrate
  • the method is applied to a network device as an example.
  • the method includes: the network device sends a timing advance to the terminal device, and the network device resets the effective duration of the pre-configured uplink resource according to the timing advance.
  • resetting the effective duration of the pre-configured uplink resource includes: the network device restarts the timer, and the pre-configured uplink resource is valid before the timer expires.
  • resetting the effective duration of the pre-configured uplink resource includes: the network device determines the start time of the first duration according to the sending time of the timing advance, and the pre-configured uplink resource within the first duration is valid.
  • the network device receives the preamble sequence from the terminal device.
  • the network device restarts the time advance timer, and the time advance is effective before the time advance timer expires.
  • the preamble sequence is carried on pre-configured uplink resources.
  • the timing advance is carried in DCI or MAC CE.
  • the terminal device is a terminal device in an idle state.
  • the embodiments of the present application provide a communication device.
  • the communication device may be a terminal device, or a structure or device provided in the terminal device, such as a chip, a chip system, or a circuit system.
  • the communication device includes At least one processor, the at least one processor is configured to be coupled with the memory, read and execute the instructions in the memory, so as to receive the timing advance from the network device, and reset the pre-configured uplink resource according to the timing advance The effective length of time.
  • the processor is specifically configured to: restart a timer, and the pre-configured uplink resource is valid before the timer expires.
  • the processor is specifically configured to: determine the start moment of the first duration according to the receiving moment of the timing advance, and the pre-configured uplink resource within the first duration is valid.
  • the processor is further configured to: send a preamble sequence to the network device.
  • the processor is further configured to: restart a time advance timer, and the time advance is valid before the time advance timer expires.
  • the preamble sequence is carried on the pre-configured uplink resource.
  • the timing advance is carried in DCI or MAC CE.
  • the communication device is a terminal device in an idle state.
  • the foregoing communication device may further include the memory, wherein the processor is coupled to the memory, and the processor can read instructions in the memory to implement the functions of the foregoing processor.
  • the above-mentioned communication device may further include a transceiver, which is used to support the communication device to receive or send signaling or data.
  • the transceiver may be used to implement the timing advance of receiving from a network device, and It can be used to send a preamble sequence to the network device.
  • the embodiments of the present application provide a communication device.
  • the communication device may be a network device, or a structure or device provided in the network device, for example, a chip, a chip system, or a circuit system.
  • the communication device includes At least one processor, the at least one processor is configured to be coupled with the memory, read and execute the instructions in the memory, so as to send the time advance to the terminal device, and reset the pre-configured uplink according to the time advance The effective duration of the resource.
  • the processor is specifically configured to: restart a timer, and the pre-configured uplink resource is valid before the timer expires.
  • the processor is specifically configured to: determine the start moment of the first duration according to the sending moment of the timing advance, and the pre-configured uplink resource within the first duration is valid.
  • the processor is further configured to: receive the preamble sequence from the terminal device.
  • the processor is further configured to: restart a time advance timer, and the time advance is valid before the time advance timer expires.
  • the preamble sequence is carried on the pre-configured uplink resource.
  • the timing advance is carried in DCI or MAC CE.
  • the terminal device is a terminal device in an idle state.
  • the foregoing communication device may further include the memory, wherein the processor is coupled to the memory, and the processor can read instructions in the memory to implement the functions of the foregoing processor.
  • the above-mentioned communication device may further include a transceiver, which is used to support the receiving or sending of signaling or data by the communication device.
  • the transceiver may be used to send the timing advance to the terminal device, or It is used for receiving the preamble sequence from the terminal device.
  • an embodiment of the present application provides a communication device for implementing the above-mentioned first aspect or any one of the design methods in the first aspect, including corresponding functional modules, for example, including a processing unit, a transceiver unit, etc., They are used to implement the steps in the above method.
  • an embodiment of the present application provides a communication device for implementing the second aspect or any one of the design methods in the second aspect, including corresponding functional modules, such as a processing unit, a transceiver unit, etc., They are used to implement the steps in the above method.
  • an embodiment of the present application provides a chip or a chip system, which may be coupled with a transceiver to implement the first aspect and any one of the possible designs of the first aspect, or the second aspect Aspect and any possible design of the second aspect.
  • the chip system includes at least one chip, and may also include other discrete devices.
  • an embodiment of the present application provides a communication system that includes a terminal device in any possible design of the third aspect or the third aspect, and any possible design of the fourth aspect or the fourth aspect. Network equipment in your design.
  • an embodiment of the present application provides a communication system, which includes the communication device of the fifth aspect and the communication device of the sixth aspect.
  • an embodiment of the present application provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, it implements the first aspect and any one of the possible designs of the first aspect, Or the second aspect and any one of the possible designs of the second aspect.
  • an embodiment of the present application provides a computer program product.
  • the computer program product When the computer program product is run by a computer, the computer can realize the first aspect and any one of the possible designs of the first aspect, or the first aspect. Any possible design of the second aspect and the second aspect.
  • embodiments of the present application provide another communication method and device for flexibly configuring uplink scheduling-free resources in uplink scheduling-free transmission.
  • the embodiments of the present application provide another communication method, which can be applied to terminal equipment, and can also be applied to structures or devices provided in terminal equipment, such as chips, chip systems, or circuit systems, etc.
  • the method applied to a terminal device includes: the terminal device receives a first message from a network device, the first message includes a timing advance and first indication information, and the first indication information is used to indicate a release schedule For the configured uplink resources, the terminal device releases the pre-configured uplink resources.
  • the terminal device does not need to wait until the effective duration of the pre-configured uplink resource to release the pre-configured uplink resource, and can release the pre-configured uplink resource when the time advance is updated according to the scheduling of the network device, so that the release of the pre-configuration can be enhanced
  • the flexibility of the uplink resources can further improve the flexibility of configuring uplink scheduling-free resources.
  • the terminal device may also send a second message to the network device, and the second message is used to confirm the first message.
  • the terminal device can notify the network device that the first message is received, so that the network device releases the pre-configured uplink resources while ensuring that the terminal device receives the first message.
  • the terminal device sends the preamble sequence to the network device.
  • the terminal device restarts the time advance timer, and the time advance is effective before the time advance timer expires.
  • the preamble sequence is carried on pre-configured uplink resources.
  • the preamble sequence can also be carried by the transmission resource specially configured for the preamble sequence.
  • the preamble sequence is carried on the pre-configured uplink resources without the need to configure new transmission resources for it, which can save communication resources.
  • the timing advance is carried in DCI or MAC CE.
  • the terminal device is a terminal device in an idle state.
  • the embodiments of the present application provide another communication method, which can be applied to network equipment, and can also be applied to structures or devices provided in network equipment, such as chips, chip systems, or circuit systems.
  • the method applied to a network device includes: the network device sends a first message to the terminal device, the first message includes a timing advance and first indication information, the first indication information is used to indicate the release of the preconfiguration
  • the network equipment releases the pre-configured uplink resources.
  • the network device may also receive a second message from the terminal device, where the second message is used to confirm the first message.
  • the network device receives the preamble sequence from the terminal device.
  • the network device restarts the time advance timer, and the time advance is effective before the time advance timer expires.
  • the preamble sequence is carried on pre-configured uplink resources.
  • the preamble sequence can also be carried by the transmission resource specially configured for the preamble sequence.
  • the preamble sequence is carried on the pre-configured uplink resources without the need to configure new transmission resources for it, which can save communication resources.
  • the timing advance is carried in DCI or MAC CE.
  • the terminal device is a terminal device in an idle state.
  • the embodiments of the present application provide another communication device.
  • the communication device may be a terminal device, or a structure or device provided in the terminal device, such as a chip, a chip system, or a circuit system.
  • the apparatus includes at least one processor, and the at least one processor is configured to be coupled with a memory, read and execute instructions in the memory, so as to realize receiving a first message from a network device, the first message including a timing advance and First indication information, where the first indication information is used to indicate the release of the pre-configured uplink resources, and the release of the pre-configured uplink resources.
  • the processor is further configured to: after receiving the first message from the network device, send a second message to the network device, and the second message is used to confirm the first message .
  • the processor is further configured to: send a preamble sequence to the network device.
  • the processor is further configured to: restart a time advance timer, and the time advance is valid before the time advance timer expires.
  • the preamble sequence is carried on the pre-configured uplink resource.
  • the timing advance is carried in DCI or MAC CE.
  • the communication device is a terminal device in an idle state.
  • the foregoing communication device may further include the memory, wherein the processor is coupled to the memory, and the processor can read instructions in the memory to implement the functions of the foregoing processor.
  • the above-mentioned communication device may further include a transceiver, which is used to support the communication device to receive or send signaling or data.
  • the transceiver may be used to implement receiving the first message from a network device, and also It can be used to send a second message to the network device after receiving the first message from the network device, and can also be used to send a preamble sequence to the network device.
  • the embodiments of the present application provide another communication device.
  • the communication device may be a network device, or a structure or device provided in the network device, such as a chip, a chip system, or a circuit system.
  • the apparatus includes at least one processor, and the at least one processor is configured to be coupled with a memory, read and execute instructions in the memory, so as to realize sending a first message to a terminal device, and the first message includes a timing advance and a first message.
  • An indication information where the first indication information is used to indicate the release of pre-configured uplink resources and release the pre-configured uplink resources.
  • the processor is further configured to: before the processor releases the pre-configured uplink resources, receive a second message from the terminal device, where the second message is used to confirm The first message.
  • the processor is further configured to: receive the preamble sequence from the terminal device.
  • the processor is further configured to: restart a time advance timer, and the time advance is valid before the time advance timer expires.
  • the preamble sequence is carried on the pre-configured uplink resource.
  • the timing advance is carried in DCI or MAC CE.
  • the terminal device is a terminal device in an idle state.
  • the foregoing communication device may further include the memory, wherein the processor is coupled to the memory, and the processor can read instructions in the memory to implement the functions of the foregoing processor.
  • the above-mentioned communication device may further include a transceiver, which is used to support the communication device to receive or send signaling or data.
  • the transceiver may be used to send the first message to the terminal device, or It is used to implement receiving the second message from the terminal device before the processor releases the pre-configured uplink resource, and may also be used to implement receiving the preamble sequence from the terminal device.
  • the embodiments of the present application provide another communication device, which is used to implement the method in any of the above-mentioned twelfth aspect or the twelfth aspect, and includes corresponding functional modules, such as processing units, The transceiver unit and the like are respectively used to implement the steps in the above method.
  • the embodiments of the present application provide another communication device, which is used to implement the above-mentioned thirteenth aspect or the method in any one of the thirteenth aspects, including corresponding functional modules, such as processing units, The transceiver unit and the like are respectively used to implement the steps in the above method.
  • an embodiment of the present application provides a chip or a chip system that can be coupled with a transceiver to implement any one of the above-mentioned twelfth and twelfth aspects. Or the thirteenth aspect and any one of the possible designs of the thirteenth aspect.
  • the chip system includes at least one chip, and may also include other discrete devices.
  • an embodiment of the present application provides a communication system, which includes a terminal device in any possible design of the foregoing fourteenth aspect or the fourteenth aspect, and, the foregoing fifteenth aspect or the fifteenth aspect Any possible design of network equipment.
  • an embodiment of the present application provides a communication system, which includes the communication device of the aforementioned sixteenth aspect, and the communication device of the aforementioned seventeenth aspect.
  • an embodiment of the present application provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, any one of the twelfth aspect and the twelfth aspect is implemented A possible design, or any one of the thirteenth aspect and the thirteenth aspect.
  • the embodiments of the present application provide a computer program product.
  • the computer program product When the computer program product is run by a computer, the computer can realize any one of the above-mentioned twelfth aspect and any one of the possible designs in the twelfth aspect , Or any possible design of the thirteenth aspect and the thirteenth aspect.
  • Figure 1 is a flow chart of a random access process provided by an embodiment of the application
  • FIG. 2 is a schematic diagram of a timing advance provided by an embodiment of this application.
  • Fig. 3 is a communication system applicable to the embodiments of this application.
  • FIG. 4 is a flowchart of a communication method provided by an embodiment of this application.
  • FIG. 5a is a schematic diagram of sending a preamble sequence according to an embodiment of the application.
  • FIG. 5b is a schematic diagram of another sending preamble sequence provided by an embodiment of the application.
  • FIG. 6 is a flowchart of another communication method provided by an embodiment of this application.
  • FIG. 7 is a flowchart of yet another communication method provided by an embodiment of this application.
  • FIG. 8 is a flowchart of another communication method provided by an embodiment of this application.
  • FIG. 9 is a schematic structural diagram of a terminal device provided by an embodiment of this application.
  • FIG. 10 is a schematic structural diagram of another terminal device provided by an embodiment of this application.
  • FIG. 11 is a schematic structural diagram of a network device provided by an embodiment of this application.
  • FIG. 12 is a schematic structural diagram of another network device provided by an embodiment of this application.
  • Terminal devices including devices that provide users with voice and/or data connectivity, such as handheld devices with wireless connection functions, or processing devices connected to wireless modems.
  • the terminal device can communicate with the core network via a radio access network (RAN), and exchange voice and/or data with the RAN.
  • the terminal equipment may include user equipment (UE), wireless terminal equipment, mobile terminal equipment, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station), mobile station (mobile), remote Station (remote station), access point (access point, AP), remote terminal equipment (remote terminal), access terminal equipment (access terminal), user terminal equipment (user terminal), user agent (user agent), or user Equipment (user device), etc.
  • it may include mobile phones (or “cellular” phones), computers with mobile terminal equipment, portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile devices, smart wearable devices, and so on.
  • PCS personal communication service
  • PCS personal communication service
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistants
  • restricted devices such as devices with low power consumption, or devices with limited storage capabilities, or devices with limited computing capabilities. Examples include barcodes, radio frequency identification (RFID), sensors, global positioning system (GPS), laser scanners and other information sensing equipment.
  • RFID radio frequency identification
  • GPS global positioning system
  • laser scanners and other information sensing equipment.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices. It is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones.
  • Use such as various smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.
  • a network device for example, including a base station (for example, an access point), may refer to a device that communicates with a wireless terminal device through one or more cells on an air interface in an access network.
  • the network device can be used to convert received air frames and Internet Protocol (IP) packets to each other, and act as a router between the terminal device and the rest of the access network, where the rest of the access network may include an IP network.
  • IP Internet Protocol
  • the network equipment can also coordinate the attribute management of the air interface.
  • the network equipment may include an evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in a long term evolution (LTE) system or an evolved LTE system (LTE-Advanced, LTE-A), or It can also include the next generation node B (gNB) in the fifth generation (5G) new radio (NR) system or the cloud access network (CloudRAN) system Centralized unit (CU) and distributed unit (DU) in, the embodiment of this application is not limited.
  • NodeB or eNB or e-NodeB, evolutional Node B in a long term evolution (LTE) system or an evolved LTE system (LTE-Advanced, LTE-A), or It can also include the next generation node B (gNB) in the fifth generation (5G) new radio (NR) system or the cloud access network (CloudRAN) system Centralized unit (CU) and distributed unit (DU) in, the embodiment of this application is not limited.
  • 5G fifth generation
  • NR new radio
  • CloudRAN cloud access network
  • Machine type communication also known as machine to machine (M2M), or Internet of things (IoT), as the name implies, refers to the communication between objects. Furthermore, it refers to the communication between machines.
  • the communication node in this communication mode can be called an MTC terminal.
  • Future IoT communications may mainly cover smart grids, smart agriculture, smart transportation, smart homes, medical testing and monitoring, logistics testing, industrial testing and monitoring, automotive networking, smart communities, and environmental testing.
  • MTC communication system An important type of MTC communication system is a communication system based on the existing cellular network infrastructure. This type of MTC communication is usually called Cellular MTC or Cellular IoT (CIoT for short).
  • the 3rd generation partnership project (3rd generation partnership project, 3GPP) standards organization has been paying attention to the development of Cellular MTC and has actively carried out the standardization of related technologies. Specifically, for the current cellular MTC service, the requirements for the network and UE mainly include:
  • MTC services generally do not require very high service rates, but they need to be able to support large coverage.
  • the so-called large coverage means that the MTC base station has a strong coverage enhancement technology and can provide communication services for user equipment under a large penetration loss (20dB).
  • MTC base station has a strong coverage enhancement technology and can provide communication services for user equipment under a large penetration loss (20dB).
  • the existing cellular network technology is difficult to provide reliable communication services for devices in these locations, and MTC base stations must be Such devices provide robust connection services.
  • Low cost The cost of MTC terminal equipment must be lower than that of existing mobile terminals. Low cost is a prerequisite for mass deployment of MTC equipment.
  • MTC terminal equipment Due to the diversity of practical applications of MTC terminal equipment and various deployment environments, MTC terminal equipment generally uses battery power. It would be extremely expensive to replace batteries for such a huge number of devices Labor cost and time cost. MTC equipment often requires its various functional devices to have extremely low power consumption levels, so that the equipment can have a longer standby time and reduce the number of battery replacements.
  • Narrowband Internet of Things is an MTC-oriented network and an important type of network in the future communication field.
  • 3GPP standards are researching based on cellular networks, designing new air interfaces, and making full use of the characteristics of narrowband technology to carry IoT services.
  • This type of IoT is called NB-IoT.
  • the business and terminal equipment of the NB-IoT system have the following characteristics:
  • a NB-IoT base station may cover a large number of terminal devices of this type, for example, the number may be More than tens of thousands.
  • the NB-IoT system requires lower power consumption of the terminal equipment, thereby saving the battery power of the terminal equipment, ensuring the long standby time of the terminal equipment, and saving the labor cost of replacing the battery.
  • Coverage enhancement requirements As most NB-IoT systems are deployed in environments with poor network coverage, such as electricity meters and water meters, which are usually installed indoors or even basements and other places with poor wireless network signals, coverage enhancement technology is needed. To enhance network coverage.
  • the NB-IoT system has many unique designs.
  • the control channel of the NB-IoT system such as narrow-band physical downlink control channel (NPDCCH)
  • data channel such as narrow-band physical downlink control channel (NPDSCH)
  • NPUSCH narrow-band physical uplink shared channel
  • NPUSCH adopts a repeated transmission method. For the same content, hundreds or thousands of repeated transmissions are used to increase the possibility of successful reception by terminal devices with poor coverage.
  • Random access process refers to the process from the terminal device sending a random access preamble (random access preamble) to try to access the network to the process before establishing a basic signaling connection with the network device. Random access is a very critical step in a mobile communication system, and it is also the last step in establishing a communication link between terminal equipment and network equipment. For example, the terminal device exchanges information with the network device through a random access process to complete subsequent operations, such as calling, resource request, or data transmission. In addition, the terminal device can also achieve uplink time synchronization with the system through random access.
  • a random access preamble random access preamble
  • the random access process can be divided into a competitive random access process and a non-contention random access process.
  • the embodiment of the present application mainly takes a contention-based random access process as an example for description.
  • the contention-based random access process generally includes 4 steps, as shown in Figure 1:
  • Step 101 The terminal device sends a random access preamble to the network device, and the network device receives a random access preamble from the terminal device, where the random access preamble is also referred to as the random access preamble.
  • the first message (MSG1).
  • Step 102 The network device sends a random access response (RAR) message to the terminal device, and the terminal device receives the RAR message from the network device, where the RAR message is also called the second message in the random access process (MSG2).
  • RAR random access response
  • Step 103 The terminal device sends uplink signaling used to establish a radio resource control (Radio Resource Control, RRC) connection to the network device, and the network device receives the uplink signaling from the terminal device.
  • RRC Radio Resource Control
  • the uplink signaling is also called the third message (MSG3) in the random access process.
  • the uplink signaling usually includes the RRC signaling part and the media access control control element (MAC CE). ), etc., RRC signaling can be different according to different scenarios, such as RRC connection establishment request, RRC re-establishment request, and RRC recovery request.
  • Step 104 The network device sends the RRC connection establishment message to the terminal device, and the terminal device receives the RRC connection establishment message from the network device.
  • the RRC connection establishment message is also called the fourth message (MSG4) in the random access process.
  • Timing advance refers to the offset of the uplink transmission relative to the downlink. It can also be understood as the (N TA + N TA offset ) ⁇ T of the uplink radio frame i before the corresponding downlink radio frame i s seconds start, where N TA is a control variable in advance when specified, and the specific value can be configured by the base station. N TA offset is the offset of the control variable in advance when specified, and T s refers to the time unit, which can be 1/(15000 ⁇ 2048) second, as shown in Figure 2. Among them, the purpose of TA is to enable uplink signals sent by terminal equipment at different distances from the base station to reach the base station at the same time. For detailed description of TA, please refer to TS 36.211 section 8.
  • system and “network” in the embodiments of the present application can be used interchangeably, and the terms “field” and “domain” can be used interchangeably.
  • Multiple refers to two or more. In view of this, “multiple” may also be understood as “at least two” in the embodiments of the present application.
  • At least one can be understood as one or more, for example, one, two or more. For example, including at least one means including one, two or more, and does not limit which ones are included. For example, including at least one of A, B and C, then the included can be A, B, C, A and B, A and C, B and C, or A and B and C.
  • At least two can be understood as two or more.
  • the embodiments of this application can be applied to various communication systems, for example, can be applied to NB-IoT systems, IoT systems, MTC systems, eMTC systems, LTE systems, LTE-A systems, new radio (NR) systems or the future New communication systems, etc. appearing in the development of communication.
  • NB-IoT systems IoT systems
  • MTC systems MTC systems
  • eMTC systems LTE systems
  • LTE-A systems new radio (NR) systems or the future New communication systems, etc. appearing in the development of communication.
  • NR new radio
  • FIG. 3 is a communication system applicable to the embodiment of this application.
  • the communication system shown in FIG. 3 includes a network device and six terminal devices, any one of terminal device 1 to terminal device 6
  • the device can send uplink data to the network device.
  • the terminal device 4-6 can also form a sub-communication system.
  • the network device can send downlink information to the terminal device 1, the terminal device 2, the terminal device 3, and the terminal device 5.
  • the terminal device 5 can send downlink information to the terminal device 4 and the terminal based on the device-to-device (D2D) technology Equipment 6.
  • D2D device-to-device
  • FIG. 3 is only a schematic diagram, and does not specifically limit the type of the communication system, and the number and types of devices included in the communication system.
  • the terminal device 2 when the terminal device 2 has uplink data that needs to be sent to the network device, it first applies to the network device for uplink transmission resources.
  • the network device sends uplink transmission scheduling information to the terminal device 2.
  • the terminal device 2 performs uplink data transmission according to the uplink transmission scheduling information.
  • NB-IoT Release 16 will study the uplink scheduling-free transmission (grant-free transmission or uplink transmission in preconfigured resources or transmission in preconfigured uplink resources).
  • the scheduling-free uplink resource may also be referred to as preconfigured uplink resources (PUR).
  • PUR preconfigured uplink resources
  • any one of the terminal devices 1 to 6 may be in two states: an idle state or a connected state.
  • a terminal device in an idle state can be understood as being in a sleep state and wakes up periodically to monitor paging. If the terminal device in the idle state listens to the paging, or the terminal device in the idle state has uplink data to send, the terminal device in the idle state will wake up and initiate a random access process to enter the connected state, and send uplink data or Receive downlink data.
  • the terminal device in the connected state has woken up from the sleep state, has established a connection with the network device, and can send uplink data or receive downlink data.
  • the uplink scheduling-free transmission studied in NB-IoT Release 16 can be applied to terminal equipment in the connected state, and also to terminal equipment in the idle state.
  • the idle state terminal device may not initiate a random access process to the network device when performing uplink scheduling-free transmission. That is, the idle state terminal device does not need to enter the connected state when performing uplink scheduling-free transmission, and can directly perform uplink scheduling-free transmission.
  • the terminal device in the idle state in the embodiment of this application can also be referred to as the idle state terminal device, the terminal device in the idle state or the idle terminal device, etc.; the terminal device in the connected state in the embodiment of the application can also be called It is connected terminal equipment, connected terminal equipment, etc.
  • each terminal device of terminal device 1 to terminal device 6 must use an effective time advance when performing uplink scheduling-free transmission, so that the data sent by each terminal device when performing uplink scheduling-free transmission can reach the network device at the same time. Thereby, interference between terminal devices can be avoided.
  • the network device can estimate the uplink timing of the terminal device and send TA to the terminal device according to the estimated uplink timing, and the terminal device adjusts according to the TA
  • the uplink transmission time makes it the same time for the uplink data sent by each terminal device in the cell to reach the network device.
  • the network device After the network device sends the TA to the terminal device, it will start a time alignment timer (TA timer), and the terminal device will also start the same TA timer after receiving the TA, and the network device and the terminal device will maintain the TA timer, can judge whether TA is valid according to whether TA timer has timed out.
  • TA timer time alignment timer
  • the TA timer does not expire, the TA is considered valid, otherwise, the TA is considered invalid.
  • the idle state terminal device has uplink data to transmit, if it is determined that the TA timer has not timed out, that is, the TA is determined to be valid, no network device scheduling is required, and the uplink can be directly performed on the pre-configured uplink resources according to the predetermined transmission mode data transmission.
  • the "TA is valid" or "TA is valid" involved in the embodiments of this application can be understood as the TA is accurate, that is, it can be guaranteed that the terminal equipment using the TA to send uplink data can communicate with other terminal equipment.
  • the sent uplink data arrives at the network device at the same time, thereby avoiding interference between terminal devices.
  • the "TA is invalid" or "TA invalid” involved in the embodiments of this application can be understood as the TA is inaccurate.
  • the terminal device uses the uplink data sent by the TA and the uplink data sent by other terminal devices to reach the network device. Different, which may cause interference between terminal devices.
  • the effective duration of the pre-configured uplink resource is configured or predefined by the base station for the terminal device, and the terminal device is allowed to use the pre-configured uplink resource when in an idle state within the effective duration. Regardless of whether it is a predefined method or a base station configuration method, the terminal device can only reconfigure the effective duration of the pre-configured uplink resource after the effective duration of the pre-configured uplink resource expires.
  • the embodiments of the present application provide a communication method and device for flexibly configuring uplink scheduling-free resources in uplink scheduling-free transmission.
  • the method and the device are based on the same inventive concept. Since the principles of the method and the device to solve the problem are similar, the implementation of the device and the method can be referred to each other, and the repetition will not be repeated.
  • FIG. 4 is a flowchart of a communication method provided by an embodiment of this application. The method includes the following steps:
  • Step 201 The network device sends the timing advance to the terminal device, and the terminal device receives the timing advance from the network device.
  • the time advance may be the first time advance sent by the network device to the terminal device, or may be the updated time advance sent by the network device to the terminal device, which is not limited in this application.
  • the timing advance may be carried in downlink control information (DCI) or medium access control (MAC) control element (MAC).
  • DCI downlink control information
  • MAC medium access control control element
  • the timing advance carried in the DCI may be understood as sending the timing advance through DCI.
  • the timing advance carried in the MAC CE may be understood as sending the timing advance through the MAC CE.
  • the timing advance sent by the network device to the terminal device may be a timing advance specifically sent by the network device to the terminal device, and the timing advance is a timing advance applicable to the terminal device.
  • the communication method provided in the embodiments of this application can be applied to terminal devices in the idle state, and can also be applied to terminal devices in the connected state.
  • the method is applied to the terminal devices in the idle state as an example.
  • the terminal equipment involved in the following refers to the terminal equipment in the idle state unless otherwise specified.
  • the terminal device may also send a preamble sequence to the network device.
  • the network device may also receive a preamble sequence from the terminal device.
  • the preamble sequence may be a dedicated preamble sequence assigned to a specific terminal device by the network device, or may be a preamble sequence in a random access process, that is, a random access preamble code.
  • the preamble in Figure 5a is a random access preamble in the random access process as an example for illustration
  • the preamble in Figure 5b is Take the dedicated preamble sequence sent by the network device to the specific terminal device as an example.
  • the preamble sequence sent by the terminal device to the network device may be carried on the newly configured dedicated resource, where the preamble sequence carried on the newly configured dedicated resource can be understood as sending the preamble sequence on the newly configured dedicated resource.
  • the preamble sequence sent by the terminal device to the network device may be carried on a pre-configured uplink resource, where the preamble sequence carried on the pre-configured uplink resource can be understood as sending the preamble sequence on the pre-configured uplink resource.
  • the resource for sending the preamble sequence belongs to the pre-configured uplink resource, and it can also be understood as the resource for sending the preamble sequence is part or all of the pre-configured uplink resource.
  • the terminal device can use the pre-configured uplink resource to send the preamble sequence after the TA timer expires, without allocating new resources for the preamble sequence, and can improve resource utilization.
  • the terminal device can also restart (restart or reset) the time alignment timer (TA timer); correspondingly, after step 201 is performed, the network device can also restart (restart or reset) time advance timer.
  • the time advance is valid before the time advance timer expires, which can be understood as the TA timer used to control the effective time of the TA, or it can be understood as the TA timer used to control the time that the terminal device considers the TA valid, or it can be understood as the TA timer It is used to control the terminal equipment to consider that the uplink timing of the current serving cell is aligned. It can also be understood that the terminal equipment considers the uplink timing to be aligned before the TA timer times out. Restarting the time advance timer can be understood as the time advance timer restarting timing.
  • Step 202a The network device resets the effective duration of preconfigured uplink resources (PUR) according to the timing advance.
  • the pre-configured uplink resource refers to the uplink scheduling-free resource pre-configured by the network device for the terminal device in the uplink scheduling-free transmission.
  • the terminal device has uplink data that needs to be sent to the network device.
  • the uplink transmission is directly performed on the uplink scheduling-free resource pre-configured by the network device for the terminal device according to the predetermined sending mode, and the name of the pre-configured uplink resource is not limited in this application.
  • the effective duration of the pre-configured uplink resource can be understood as the duration that the pre-configured uplink resource can be used by the terminal device, and it can be understood as the terminal device in the idle state within the effective duration of the pre-configured uplink resource
  • Pre-configured uplink resources can be used, or a terminal device in an idle state considers the pre-configured uplink resource to be effective within the effective duration of the pre-configured uplink resource, or a terminal device in an idle state is effective in the pre-configured uplink resource It is considered that the pre-configured uplink resource is activated within the time period.
  • the pre-configured uplink resource is valid within the valid period, and when the pre-configured uplink resource is valid, the terminal device is allowed to use the pre-configured uplink resource.
  • the network device resets the effective duration of the pre-configured uplink resource according to the timing advance, which can be implemented but not limited to any of the following two ways:
  • Method 1 The network device can restart (restart or reset) a timer, and the pre-configured uplink resource is valid before the timer expires.
  • the pre-configured uplink resource can be released after the timer expires, where the timer also It may be called a pre-configured uplink resource timer (PUR resource timer), and the name of the timer is not limited in this application.
  • PUR resource timer pre-configured uplink resource timer
  • the pre-configured uplink resource is valid before the timer expires, which can be understood as the timer used to control the effective time of the pre-configured uplink resource, or it can be understood as the timer used to control the terminal device to consider the pre-configuration
  • the effective time of the uplink resource can also be understood as the timer used to control the time the terminal device thinks that the pre-configured uplink resource can be used, or it can be understood as the terminal device thinks the pre-configured uplink resource is available before the timer expires .
  • restarting the timer can be understood as the timer restarts timing.
  • the network device may determine the start time of the first duration according to the sending time of the timing advance, and the pre-configured uplink resources within the first duration are valid.
  • the pre-configured uplink resources in the first time period are valid, which can be understood as the first time period as the effective time period of the pre-configured uplink resources, and can also be understood as the terminal device deems that the pre-configured uplink resources are available within the first time period. .
  • the network device may determine the sending time of the time advance as the starting time of the first duration. For example, assuming that the time advance is sent by the DCI, the start subframe n or the end subframe n of the NPDCCH carrying the DCI can be determined as the start time of the first duration. If it is assumed that the length of the first duration is m subframes, Then the first duration refers to the duration from subframe n to subframe n+m-1.
  • the start subframe n or the end subframe n of the NPDSCH carrying the MAC CE may be determined as the start time of the first duration, if the length of the first duration is assumed to be m Subframes, the first duration refers to the duration from subframe n to subframe n+m-1.
  • the network device may add the sending time of the timing advance to the preset offset value to obtain the starting time of the first duration. For example, assuming that the DCI is used to send the time advance, the starting subframe n of the NPDCCH carrying the DCI can be added to the preset offset value x to obtain the starting time n+x of the first duration.
  • the length of is m subframes, and the first duration refers to the duration from subframe n+x to subframe n+x+m-1.
  • the start subframe n of the NPDSCH carrying the MAC CE can be added to the preset offset value x to obtain the start time n+x of the first duration.
  • the length of the first duration is m subframes, and the first duration refers to the duration from subframe n+x to subframe n+x+m-1.
  • Step 202b The terminal device resets the effective duration of the pre-configured uplink resource according to the timing advance.
  • the terminal device resets the effective duration of the pre-configured uplink resource according to the timing advance, which can be implemented but not limited to any of the following two ways:
  • the terminal device can restart (restart or reset) a timer, and the pre-configured uplink resource is valid before the timer expires.
  • the timer has the same meaning as the timer in Mode 1, and will not be repeated here.
  • the timer in this way 1 and the timer in the above way 1 may be the same timer or different timers, which is not limited in this application.
  • the same timer in this application can be understood as the same time duration of the timer, and it can also be understood as the same time duration of the timer and the same time when the timer starts to count.
  • the terminal device may determine the start time of the first duration according to the receiving time of the timing advance, and the pre-configured uplink resources within the first duration are valid.
  • the pre-configured uplink resources in the first time period are valid, which can be understood as the first time period as the effective time period of the pre-configured uplink resources, and can also be understood as the terminal device deems that the pre-configured uplink resources are available within the first time period. .
  • the terminal device may determine the receiving moment of the time advance as the starting moment of the first duration. For example, assuming that the time advance is sent by DCI, the end subframe n of the NPDCCH carrying the DCI can be determined as the start time of the first duration. If it is assumed that the length of the first duration is m subframes, the first duration is Refers to the time length from subframe n to subframe n+m-1. For another example, assuming that the MAC CE is used to send the timing advance, the end subframe n of the NPDSCH carrying the MAC CE can be determined as the start time of the first duration.
  • One duration refers to the duration from subframe n to subframe n+m-1.
  • the terminal device may add the receiving time of the timing advance to the preset offset value to obtain the starting time of the first duration. For example, assuming that the time advance is sent by DCI, the ending subframe n of the NPDCCH carrying the DCI can be added to the preset offset value x to obtain the start time n+x of the first duration. If the first duration is assumed The length of is m subframes, and the first duration refers to the duration from subframe n+x to subframe n+x+m-1.
  • the end subframe n of the NPDSCH carrying the MAC CE can be added to the preset offset value x to obtain the start time n+x of the first duration.
  • the length of the first duration is m subframes, and the first duration refers to the duration from subframe n+x to subframe n+x+m-1.
  • the indication information of the network device may trigger the terminal device to reset the effective duration of the pre-configured uplink resource according to the timing advance.
  • the network device can send the timing advance and reset indication information to the terminal device, and the terminal device receives the timing advance and reset indication information from the network device, and the reset indication information is used to indicate the reset The effective duration of the pre-configured uplink resource is set, and then the terminal device resets the effective duration of the pre-configured uplink resource according to the timing advance and the reset instruction information.
  • the timing advance and the reset instruction information can be sent at the same time or separately.
  • step 202a and step 202b are performed simultaneously.
  • step 202a is performed first, and then step 202b is performed.
  • step 202b is performed first, and then step 202a is performed.
  • step 202a and step 202b are performed simultaneously.
  • the terminal device does not need to wait until the effective duration of the pre-configured uplink resource expires and then updates the effective duration of the pre-configured uplink resource.
  • the terminal device can actively reset the pre-configured uplink resource according to the time advance.
  • the effective duration makes the configuration of the effective duration of the pre-configured uplink resources more flexible, thereby improving the flexibility of configuring the scheduling-free uplink resources.
  • the improvement of this application is not only that the terminal device can actively reset the effective duration of the pre-configured uplink resource, but also through this method, the terminal device resets the effective duration of the pre-configured uplink resource according to the time advance.
  • the time advance sent by the network device it can be determined that the time advance is valid at this time. If the time advance is valid, the pre-configured uplink resources can be used. At this time, the validity of the pre-configured uplink resources is reset. The duration can maximize the use time of the pre-configured uplink resources.
  • FIG. 6 is a flowchart of another communication method provided by an embodiment of this application.
  • the terminal device is an idle UE (UE in an idle state) and the network device is an eNB as an example for description.
  • the method shown in Figure 6 includes the following steps:
  • Step 501 The idle UE sends a preamble sequence to the eNB, and the eNB receives the preamble sequence from the idle UE.
  • the preamble sequence is a dedicated preamble sequence sent by the eNB to the specific idle UE, where the dedicated preamble sequence of the specific idle UE can be understood as the preamble sequence is only applicable to the idle UE.
  • Step 502 the eNB sends the time advance to the idle UE, and the idle UE receives the time advance from the eNB.
  • Step 503a the eNB restarts the time advance timer and the pre-configured uplink resource timer.
  • Step 503b idle the UE restarts the time advance timer and the pre-configured uplink resource timer.
  • the timer restarted by the eNB in step 503a and the timer restarted by the idle UE in step 503b may be the same timer or different timers.
  • the idle UE After the idle UE receives the time advance sent by the eNB, if the pre-configured uplink resource timer times out or is about to expire, the idle UE cannot use or will soon be unable to use the pre-configured uplink resources, and this application In the method of idle, the UE restarts the pre-configured uplink resource timer after receiving the time advance sent by the eNB, which can avoid that the idle UE cannot use the pre-configured uplink resources after the time advance is updated.
  • the communication method described above in this application is used to solve the technical problem that the effective duration of updating pre-configured uplink resources in the prior art is not flexible enough.
  • terminal equipment and base stations can release pre-configured uplink resources only after the effective duration of the pre-configured uplink resources has passed. This method of releasing pre-configured uplink resources is not flexible enough. How to release the pre-configuration flexibly
  • the uplink resources of the company are another technical problem that needs to be solved.
  • the embodiments of the present application provide another communication method and device for flexibly releasing pre-configured uplink resources in uplink scheduling-free transmission.
  • the method and the device are based on the same inventive concept. Since the principles of the method and the device to solve the problem are similar, the implementation of the device and the method can be referred to each other, and the repetition will not be repeated.
  • FIG. 7 is a flowchart of another communication method provided by an embodiment of this application. The method includes the following steps:
  • Step 601 The network device sends a first message to the terminal device, and the terminal device receives the first message from the network device, where the first message includes a timing advance and first indication information, and the first indication information is used to indicate The terminal device releases the pre-configured uplink resources.
  • timing advance and the pre-configured uplink resources are the same as those in the embodiment provided in FIG. 4, which can be referred to each other, and will not be repeated here.
  • the communication method provided in the embodiments of this application can be applied to terminal devices in idle state, and can also be applied to terminal devices in connected state.
  • the method is applied to terminal devices in idle state as an example for illustration.
  • the terminal equipment involved in the text refers to the terminal equipment in the idle state unless otherwise specified.
  • the first message may be carried in DCI or MAC CE.
  • the first message carried in the DCI can be understood as sending the first message through the DCI.
  • the first message carried in the MAC CE can be understood as sending the first message through the MAC CE.
  • at least two fields may be included in the DCI, one field is used to indicate the timing advance, and the other field is used to indicate the release and/or reservation of pre-configured uplink resources.
  • the DCI indication timing advance may indicate an absolute timing advance, or indicate an indirect timing advance.
  • DCI may use 1 bit to indicate the release and/or reservation of pre-configured uplink resources, for example, when the value of 1 bit is 1, it indicates the release of pre-configured uplink resources, and when the value of 1 bit is 0 Indicate to reserve the pre-configured uplink resource, or indicate to release the pre-configured uplink resource when the value of 1 bit is 0, and indicate to reserve the pre-configured uplink resource when the value of 1 bit is 1.
  • the network device can use a dedicated RNTI (radio network temporary identifier) to scramble the first message, that is, the DCI and/or NPDSCH that carries the first message can be scrambled with a dedicated RNTI.
  • the terminal device can use a dedicated RNTI for descrambling. With this method, only the terminal device can receive the first message.
  • the network device when the network device sends the first message through MSG2, it can use RA-RNTI for scrambling, and correspondingly, the terminal device can use RA-RNTI for descrambling.
  • a random access preamble sequence ID RAPID
  • each terminal device may receive its own first message according to RAPID.
  • the search space (search space) used by the network device when sending the first message may include the search space of PUR or type2-NPDCCH-CSS (CSS: common search space).
  • the search space of the PUR refers to a search space specifically defined for the characteristic of PUR, which may specifically include the period, offset, or aggregation level of the search space.
  • the terminal device may also send a preamble sequence to the network device.
  • the network device may also receive a preamble sequence from the terminal device.
  • the preamble sequence may be a dedicated preamble sequence sent by a network device to a specific terminal device, or it may be a preamble sequence in a random access process.
  • the preamble sequence sent by the terminal device to the network device may be borne in a newly configured dedicated resource, or may be borne in a pre-configured uplink resource. See the related description in Figure 4.
  • the terminal device can also restart (restart or reset) the time alignment timer (TA timer); correspondingly, after step 601 is executed, the network device can also restart (restart or reset) time advance timer.
  • TA timer time alignment timer
  • the network device can also restart (restart or reset) time advance timer.
  • the terminal device sends a second message to the network device, and the network device receives the second message from the terminal device.
  • the second message is used to confirm the first message, where the second message is used to confirm the first message, which can be understood as the terminal device notifying the network device that the first message has been received through the second message.
  • the second message may be understood as a confirmation message, which may be used to confirm that the terminal device receives the first message, or may also be used to confirm receipt of the timing advance and/or the first indication information included in the first message.
  • the second message may be a physical layer message and is sent through NPUSCH format 2 or NPUSCH format 1.
  • the second message may also be a higher layer message, for example, a release confirmation (release confirmation) MAC CE.
  • the second message may be sent through a pre-configured uplink resource, or may be sent through a resource dynamically configured by the base station.
  • Step 602a The network device releases the pre-configured uplink resources.
  • Step 602b The terminal device releases the pre-configured uplink resource.
  • the terminal device and network device do not need to wait until the effective duration of the pre-configured uplink resource expires and then release the pre-configured uplink resource.
  • the pre-configured uplink resource can be released when the network device sends the timing advance to the terminal device. Resources, can flexibly release pre-configured uplink resources.
  • FIG. 8 is a flowchart of another communication method provided by an embodiment of this application.
  • the terminal device is an idle UE (UE in an idle state) and the network device is an eNB as an example for description.
  • the method shown in Figure 8 includes the following steps:
  • Step 701 The idle UE sends a preamble sequence to the eNB, and the eNB receives the preamble sequence from the idle UE.
  • the preamble sequence is a dedicated preamble sequence sent by the eNB to the specific idle UE.
  • Step 702 the eNB sends a first message to the idle UE, and the idle UE receives the first message from the eNB.
  • the first message includes a timing advance and first indication information, and the first indication information is used to instruct the terminal device to release pre-configured uplink resources.
  • Step 703 The idle UE sends a second message to the eNB, and the eNB receives the second message from the idle UE.
  • the second message confirms the receipt of the first message.
  • Step 704a the eNB releases the pre-configured uplink resources.
  • Step 704b idle UE releases pre-configured uplink resources.
  • the eNB when the eNB detects the uplink data sent by the idle UE through the pre-configured uplink resources, it determines that the idle UE’s timing advance is inaccurate, and the eNB’s resources are relatively tight and want to release the pre-configured uplink resources ,
  • the timing advance and the first indication information can be sent to the idle UE simultaneously through the first message, which can save signaling overhead.
  • an embodiment of the present application also provides a terminal device.
  • the terminal device may have a structure as shown in FIG. 9 and have the behavioral function of the terminal device in the foregoing method embodiment.
  • the terminal device 900 may include a transceiving unit 901 and a processing unit 902.
  • the transceiving unit 901 may be configured to receive a timing advance from a network device, and the processing unit 902 may be configured to advance according to the timing.
  • Quantity reset the effective duration of the pre-configured uplink resource.
  • the transceiving unit 901 may be configured to receive a first message from a network device, the first message including a timing advance and first indication information, and the first indication information is used to indicate the release of pre-configured uplink resources,
  • the processing unit 902 may be used to release the pre-configured uplink resources.
  • the terminal device 900 may also have a storage unit 903, which may be coupled with the processing unit 902, and used for storing programs and instructions required by the processing unit 902 to perform functions.
  • processing unit 902 is specifically configured to implement:
  • processing unit 902 is specifically configured to implement:
  • the transceiver unit 901 is also used to implement:
  • the transceiver unit 901 is also used to implement:
  • processing unit 902 is also used to implement:
  • the time advance timer is restarted, and the time advance is valid before the time advance timer expires.
  • the preamble sequence is carried on the pre-configured uplink resource.
  • the timing advance is carried in the downlink control information DCI or the medium access control element MAC CE.
  • the terminal device 900 is a terminal device in an idle state.
  • the terminal device involved in the embodiment of the present application may also have the structure of the terminal device 1000 as shown in FIG. 10.
  • the terminal device 1000 may include at least one processor 1002, and the at least one processor 1002 is configured to couple with a memory. , Read and execute the instructions in the memory to implement the steps involved in the terminal device in the method provided in the embodiments of the present application.
  • the terminal device 1000 may further include a transceiver 1001, configured to support the communication device to receive or send signaling or data.
  • the transceiver 1001 in the terminal device 1000 as shown in FIG. 10 can be used to implement the functions of the above-mentioned transceiver unit 901.
  • the transceiver 1001 can be used by the terminal device 1000 to perform the S201 in the communication method shown in FIG.
  • the processor 1002 can be used to implement the functions of the above-mentioned processing unit 902.
  • the processor 1002 can be used for the terminal device 1000 to execute the steps shown in FIG. 4
  • the steps shown in S202b in the communication method shown in FIG. 7 and the steps shown in S602b in the communication method shown in FIG. 7 are executed.
  • the transceiver 1001 may be coupled with the antenna 1003 to support the terminal device 1000 to communicate.
  • the terminal device 1000 may also include a memory 1004 in which computer programs and instructions are stored.
  • the memory 1004 may be coupled with the processor 1002 and/or the transceiver 1001 to support the processor 1002 to call the computer programs in the memory 1004,
  • the instructions are used to implement the steps involved in the terminal device in the method provided by the embodiment of this application; in addition, the memory 1004 can also be used to store the data involved in the method embodiment of this application, for example, it is used to store the data necessary to support the transceiver 1001 to achieve interaction
  • the data, instructions, and/or are used to store configuration information necessary for the terminal device 1000 to execute the method described in the embodiment of the present application.
  • the embodiments of the present application also provide a network device, which may have a structure as shown in FIG. 11 and have the behavioral functions of the network device in the foregoing method embodiment.
  • the network device 1100 may include a transceiving unit 1101 and a processing unit 1102.
  • the transceiving unit 1101 may be used to send a timing advance to a terminal device
  • the processing unit 1102 may be used to send a timing advance according to the timing advance.
  • the transceiving unit 1101 may be configured to send a first message to the terminal device, where the first message includes the timing advance and first indication information, and the first indication information is used to indicate the release of pre-configured uplink resources, so
  • the processing unit 1102 may be used to release the pre-configured uplink resources.
  • the network device 1100 may also have a storage unit 1103, and the storage unit 1103 may be coupled with the processing unit 1102 to store programs and instructions required by the processing unit 1102 to perform functions.
  • processing unit 1102 is specifically configured to implement:
  • processing unit 1102 is specifically configured to implement:
  • the transceiver unit 1101 is also used to implement:
  • the processing unit 1102 Before the processing unit 1102 releases the pre-configured uplink resource, it receives a second message from the terminal device, where the second message is used to confirm the first message.
  • the transceiver unit 1101 is also used to implement:
  • processing unit 1102 is also used to implement:
  • the time advance timer is restarted, and the time advance is valid before the time advance timer expires.
  • the preamble sequence is carried on the pre-configured uplink resource.
  • the timing advance is carried in downlink control information DCI or medium access control element MAC CE.
  • the terminal device is a terminal device in an idle state.
  • the network device involved in the embodiment of the present application may also have the structure of the network device 1200 as shown in FIG. 12.
  • the network device 1200 may include at least one processor 1202, and the at least one processor 1202 is configured to couple with a memory. , Read and execute the instructions in the memory to implement the steps involved in the terminal device in the method provided in the embodiments of the present application.
  • the terminal device 1000 may further include a transceiver 1201, configured to support the communication device to receive or send signaling or data.
  • the transceiver 1201 in the network device 1200 shown in FIG. 12 can be used to implement the functions of the above-mentioned transceiver unit 901.
  • the transceiver 1201 can be used by the network device 1200 to perform the S201 in the communication method shown in FIG.
  • the processor 1202 can be used to implement the functions of the above-mentioned processing unit 902.
  • the processor 1202 can be used for the network device 1200 to execute the steps shown in FIG. 4 in the communication method shown in FIG. Steps shown in S202a in the communication method shown, and steps shown in S602a in the communication method shown in FIG. 7 are executed.
  • the transceiver 1201 may be coupled with the antenna 1203 to support the network device 1200 to communicate.
  • the network device 1200 may further include a memory 1204 in which computer programs and instructions are stored.
  • the memory 1204 may be coupled with the processor 1202 and/or the transceiver 1201 to support the processor 1202 to call the computer programs in the memory 1204,
  • the instructions are used to implement the steps involved in the network device in the method provided by the embodiment of this application; in addition, the memory 1204 can also be used to store the data involved in the method embodiment of this application, for example, it is used to store the data necessary to support the transceiver 1201 to achieve interaction.
  • the data, instructions, and/or are used to store configuration information necessary for the network device 1200 to execute the method described in the embodiments of the present application.
  • the embodiment of the present application also provides a computer-readable storage medium on which some instructions are stored. When these instructions are called and executed by a computer, the computer can complete the above method embodiments and method implementations. Examples of methods involved in any possible design.
  • the computer-readable storage medium is not limited. For example, it may be RAM (random-access memory, random access memory), ROM (read-only memory, read-only memory), etc.
  • the present application also provides a computer program product, which can complete the method embodiment and the method involved in any possible design of the above method embodiment when the computer program product is invoked and executed by a computer.
  • the present application further provides a chip, which is coupled with a transceiver, and is used to complete the foregoing method embodiment and the method involved in any one of the possible implementations of the method embodiment, wherein "Coupling” means that two components are directly or indirectly combined with each other. This combination can be fixed or movable. This combination can allow fluid, electricity, electrical signals or other types of signals to be connected between the two components. Communicate between.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).
  • the various illustrative logic units and circuits described in the embodiments of this application can be implemented by general-purpose processors, digital signal processors, application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, Discrete gates or transistor logic, discrete hardware components, or any combination of the above are designed to implement or operate the described functions.
  • the general-purpose processor may be a microprocessor, and optionally, the general-purpose processor may also be any traditional processor, controller, microcontroller, or state machine.
  • the processor can also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors combined with a digital signal processor core, or any other similar configuration achieve.
  • the steps of the method or algorithm described in the embodiments of the present application can be directly embedded in hardware, a software unit executed by a processor, or a combination of the two.
  • the software unit can be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM or any other storage medium in the field.
  • the storage medium may be connected to the processor, so that the processor can read information from the storage medium, and can store and write information to the storage medium.
  • the storage medium may also be integrated into the processor.
  • the processor and the storage medium can be arranged in an ASIC, and the ASIC can be arranged in a terminal device.
  • the processor and the storage medium may also be arranged in different components in the terminal device.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing functions specified in a flow or multiple flows in the flowchart and/or a block or multiple blocks in the block diagram.

Abstract

一种通信方法及装置，用以在上行免调度传输中，灵活地配置上行免调度资源。该方法包括：终端设备接收来自网络设备的时间提前量，终端设备根据该时间提前量重新设置预配置的上行资源的有效时长。终端设备无需等到预配置的上行资源的有效时长失效后更新预配置的上行资源的有效时长，可主动重新设置预配置的上行资源的有效时长，使得预配置的上行资源的有效时长的配置更灵活，进而可提升配置上行免调度资源的灵活性。此外，终端设备在接收到网络设备发送的时间提前量时，可以确定此时时间提前量是有效的，而时间提前量有效时必然可以使用预配置的上行资源，此时重新设置预配置的上行资源的有效时长，可最大限度地延长预配置的上行资源的使用时间。

Description

一种通信方法及装置
本申请要求在2019年02月15日提交中国专利局、申请号为201910118053.6、申请名称为“一种通信方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及移动通信技术领域，尤其涉及一种通信方法及装置。
背景技术
目前，在窄带物联网(narrow band internet of things，NB-IoT)中引入上行免调度传输，其中上行免调度传输还可以称为grant-free transmission或uplink transmission in preconfigured resources或transmission in preconfigured uplink resources等，以下均称为上行免调度传输。上行免调度传输中，基站为终端设备预先配置上行免调度资源，其中该上行免调度资源也可以称为预配置的上行资源(preconfigured uplink resources，PUR)。处于空闲态的终端设备在时间提前量(timing advance，TA)有效时，可以使用该预配置的上行资源传输上行数据。具体的，当处于空闲态的终端设备有上行数据要进行传输时，若确定TA有效，则无需基站的调度，可直接在该预配置的上行资源上按照预先规定的发送方式进行上行数据传输。
现有技术中，预配置的上行资源的有效时长是基站为终端设备配置的或预定义的，在该有效时长内允许该终端设备在处于空闲态时使用该预配置的上行资源。而无论是预定义的方式还是基站配置的方式，该终端设备只能在预配置的上行资源的有效时长失效以后重新配置预配置的上行资源的有效时长，这两种配置上行免调度资源的方式均不够灵活，因此，如何更灵活地配置上行免调度资源是需要解决的一个技术问题。
进一步的，终端设备和基站只能在预配置的上行资源的有效时长过后，才可以释放预配置的上行资源，该种释放预配置的上行资源的方法也会影响上行免调度资源配置的灵活性。
发明内容
本申请实施例提供一种通信方法及装置，用以在上行免调度传输中，灵活地配置上行免调度资源。
第一方面，本申请实施例提供一种通信方法，该通信方法可应用于终端设备，也可以应用于设置在终端设备中的结构或装置，例如，芯片、芯片系统或者电路系统等，以将该方法应用于终端设备为例进行说明，该方法包括：终端设备接收来自网络设备的时间提前量，终端设备根据时间提前量，重新设置预配置的上行资源的有效时长。
通过上述方法，终端设备无需等到预配置的上行资源的有效时长失效后更新预配置的上行资源的有效时长，终端设备可以主动根据时间提前量重新设置预配置的上行资源的有效时长，使得预配置的上行资源的有效时长的配置更灵活，进而可提升配置上行免调度资源的灵活性。此外，本申请改进之处不仅在于可由终端设备主动重新设置预配置的上行资 源的有效时长，而且通过该方法，终端设备根据时间提前量来重新设置预配置的上行资源的有效时长，终端设备在接收到网络设备发送的时间提前量时，可以确定此时时间提前量是有效的，而时间提前量有效的情况下必然可以使用预配置的上行资源，此时重新设置预配置的上行资源的有效时长，可最大限度地延长预配置的上行资源的使用时间。
一种可能的设计中，重新设置预配置的上行资源的有效时长，包括：终端设备重启定时器，定时器超时之前预配置的上行资源有效。
通过上述方法，终端设备通过重启定时器来重新设置预配置的上行资源的有效时长，简单易于实现。
一种可能的设计中，重新设置预配置的上行资源的有效时长，包括：终端设备根据时间提前量的接收时刻，确定第一时长的起始时刻，第一时长内预配置的上行资源有效。
通过上述方法，终端设备根据时间提前量的接收时刻确定第一时长的起始时刻，这样，可在确定时间提前量有效的情况下，重新设置预配置的上行资源有效时长，可最大限度地延长预配置的上行资源的使用时间。
一种可能的设计中，在终端设备接收来自网络设备的时间提前量之前，终端设备向网络设备发送前导序列。
一种可能的设计中，在终端设备接收来自网络设备的时间提前量之后，终端设备重启时间提前量定时器，时间提前量定时器超时之前时间提前量有效。
一种可能的设计中，前导序列承载于预配置的上行资源。此外，前导序列还可以承载于专门为该前导序列配置的传输资源。
通过上述方法，将前导序列承载于预配置的上行资源，不需要为其配置新的传输资源，可节省通信资源。
一种可能的设计中，时间提前量承载于下行控制信息(downlink control information，DCI)或媒体接入控制(medium access control，MAC)控制元素(MAC control element，MAC CE)。
一种可能的设计中，终端设备为处于空闲态的终端设备。
第二方面，本申请实施例提供一种通信方法，该通信方法可应用于网络设备，也可应用于设置在网络设备中的结构或装置，例如，芯片、芯片系统或者电路系统等，以将该方法应用于网络设备为例进行说明，该方法包括：网络设备向终端设备发送时间提前量，网络设备根据时间提前量，重新设置预配置的上行资源的有效时长。
一种可能的设计中，重新设置预配置的上行资源的有效时长，包括：网络设备重启定时器，定时器超时之前预配置的上行资源有效。
一种可能的设计中，重新设置预配置的上行资源的有效时长，包括：网络设备根据时间提前量的发送时刻，确定第一时长的起始时刻，第一时长内预配置的上行资源有效。
一种可能的设计中，网络设备接收来自终端设备的前导序列。
一种可能的设计中，网络设备重启时间提前量定时器，时间提前量定时器超时之前时间提前量有效。
一种可能的设计中，前导序列承载于预配置的上行资源。
一种可能的设计中，时间提前量承载于DCI或MAC CE。
一种可能的设计中，终端设备为处于空闲态的终端设备。
第三方面，本申请实施例提供一种通信装置，该通信装置可以是终端设备，也可以是 设置在终端设备中的结构或装置，例如，芯片、芯片系统或者电路系统等，该通信装置包括至少一个处理器，所述至少一个处理器用于与存储器耦合，读取并执行所述存储器中的指令，以实现接收来自网络设备的时间提前量，根据时间提前量，重新设置预配置的上行资源的有效时长。
一种可能的设计中，所述处理器具体用于实现：重启定时器，所述定时器超时之前预配置的上行资源有效。
一种可能的设计中，所述处理器具体用于实现：根据所述时间提前量的接收时刻，确定第一时长的起始时刻，所述第一时长内所述预配置的上行资源有效。
一种可能的设计中，所述处理器还用于实现：向所述网络设备发送前导序列。
一种可能的设计中，所述处理器还用于实现：重启时间提前量定时器，所述时间提前量定时器超时之前所述时间提前量有效。
一种可能的设计中，所述前导序列承载于所述预配置的上行资源。
一种可能的设计中，所述时间提前量承载于DCI或MAC CE。
一种可能的设计中，所述通信装置为处于空闲态的终端设备。
可选的，上述通信装置还可包括所述存储器，其中，处理器与存储器耦合，所述处理器可读取所述存储器中的指令，以实现上述处理器的功能。
可选的，上述通信装置还可以包括收发器，用于支持所述通信装置进行信令或者数据的接收或发送，例如，所述收发器可以用于实现接收来自网络设备的时间提前量，还可以用于实现向所述网络设备发送前导序列。
第四方面，本申请实施例提供一种通信装置，该通信装置可以是网络设备，也可以是设置在网络设备中的结构或装置，例如，芯片、芯片系统或者电路系统等，该通信装置包括至少一个处理器，所述至少一个处理器用于与存储器耦合，读取并执行所述存储器中的指令，以实现向终端设备发送时间提前量，根据所述时间提前量，重新设置预配置的上行资源的有效时长。
一种可能的设计中，所述处理器具体用于实现：重启定时器，所述定时器超时之前预配置的上行资源有效。
一种可能的设计中，所述处理器具体用于实现：根据所述时间提前量的发送时刻，确定第一时长的起始时刻，所述第一时长内所述预配置的上行资源有效。
一种可能的设计中，所述处理器还用于实现：接收来自所述终端设备的前导序列。
一种可能的设计中，所述处理器还用于实现：重启时间提前量定时器，所述时间提前量定时器超时之前所述时间提前量有效。
一种可能的设计中，所述前导序列承载于所述预配置的上行资源。
一种可能的设计中，所述时间提前量承载于DCI或MAC CE。
一种可能的设计中，所述终端设备为处于空闲态的终端设备。
可选的，上述通信装置还可包括所述存储器，其中，处理器与存储器耦合，所述处理器可读取所述存储器中的指令，以实现上述处理器的功能。
可选的，上述通信装置还可以包括收发器，用于支持所述通信装置进行信令或者数据的接收或发送，例如，所述收发器可以用于实现向终端设备发送时间提前量，还可以用于实现接收来自所述终端设备的前导序列。
第五方面，本申请实施例提供一种通信装置，用于实现上述第一方面或第一方面中的 任意一种设计中的方法，包括相应的功能模块，例如包括处理单元、收发单元等，分别用于实现以上方法中的步骤。
第六方面，本申请实施例提供一种通信装置，用于实现上述第二方面或第二方面中的任意一种设计中的方法，包括相应的功能模块，例如包括处理单元、收发单元等，分别用于实现以上方法中的步骤。
第七方面，本申请实施例提供一种芯片或芯片系统，该芯片或芯片系统可以与收发器耦合，用于实现上述第一方面以及第一方面中的任意一种可能的设计，或者第二方面以及第二方面中的任意一种可能的设计。所述芯片系统包含至少一个芯片，还可以包含其他分立器件。
第八方面，本申请实施例提供一种通信系统，该系统包括上述第三方面或第三方面的任一可能的设计中的终端设备，和，上述第四方面或第四方面的任一可能的设计中的网络设备。
第九方面，本申请实施例提供一种通信系统，该系统包括上述第五方面的通信装置，和，上述第六方面的通信装置。
第十方面，本申请实施例提供一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现第一方面以及第一方面中的任意一种可能的设计，或者第二方面以及第二方面中的任意一种可能的设计。
第十一方面，本申请实施例提供一种计算机程序产品，当所述计算机程序产品被计算机运行时，可以使得计算机实现上述第一方面以及第一方面中的任意一种可能的设计，或者第二方面以及第二方面中的任意一种可能的设计。
此外，本申请实施例提供另一种通信方法及装置，用以在上行免调度传输中，灵活地配置上行免调度资源。
第十二方面，本申请实施例提供另一种通信方法，该通信方法可应用于终端设备，也可以应用于设置在终端设备中的结构或装置，例如，芯片、芯片系统或者电路系统等，以将该方法应用于终端设备为例进行说明，该方法包括：终端设备接收来自网络设备的第一消息，第一消息包括时间提前量和第一指示信息，第一指示信息用于指示释放预配置的上行资源，终端设备释放预配置的上行资源。
通过上述方法，终端设备无需等到预配置的上行资源的有效时长过后释放预配置的上行资源，可根据网络设备的调度在更新时间提前量时释放预配置的上行资源，这样，可增强释放预配置的上行资源的灵活性，进而可提升配置上行免调度资源的灵活性。
一种可能的设计中，终端设备接收来自网络设备的第一消息之后，终端设备还可以向网络设备发送第二消息，第二消息用于确认第一消息。
通过上述方法，终端设备可通知网络设备收到第一消息，以使网络设备在确保终端设备收到第一消息的情况下，释放预配置的上行资源。
一种可能的设计中，终端设备向网络设备发送前导序列。
一种可能的设计中，终端设备重启时间提前量定时器，时间提前量定时器超时之前时间提前量有效。
一种可能的设计中，前导序列承载于预配置的上行资源。此外，前导序列还可以承载于专门为该前导序列配置的传输资源。
通过上述方法，将前导序列承载于预配置的上行资源，不需要为其配置新的传输资源， 可节省通信资源。
一种可能的设计中，时间提前量承载于DCI或MAC CE。
一种可能的设计中，终端设备为处于空闲态的终端设备。
第十三方面，本申请实施例提供另一种通信方法，该通信方法可应用于网络设备，也可应用于设置在网络设备中的结构或装置，例如，芯片、芯片系统或者电路系统等，以将该方法应用于网络设备为例进行说明，该方法包括：网络设备向终端设备发送第一消息，第一消息包括时间提前量和第一指示信息，第一指示信息用于指示释放预配置的上行资源，网络设备释放预配置的上行资源。
一种可能的设计中，网络设备释放预配置的上行资源之前，还可以接收来自终端设备的第二消息，第二消息用于确认第一消息。
一种可能的设计中，网络设备接收来自终端设备的前导序列。
一种可能的设计中，网络设备重启时间提前量定时器，时间提前量定时器超时之前时间提前量有效。
一种可能的设计中，前导序列承载于预配置的上行资源。此外，前导序列还可以承载于专门为该前导序列配置的传输资源。
通过上述方法，将前导序列承载于预配置的上行资源，不需要为其配置新的传输资源，可节省通信资源。
一种可能的设计中，时间提前量承载于DCI或MAC CE。
一种可能的设计中，终端设备为处于空闲态的终端设备。
第十四方面，本申请实施例提供另一种通信装置，该通信装置可以是终端设备，也可以是设置在终端设备中的结构或装置，例如，芯片、芯片系统或者电路系统等，该通信装置包括至少一个处理器，所述至少一个处理器用于与存储器耦合，读取并执行所述存储器中的指令，以实现接收来自网络设备的第一消息，所述第一消息包括时间提前量和第一指示信息，所述第一指示信息用于指示释放预配置的上行资源，释放所述预配置的上行资源。
一种可能的设计中，所述处理器还用于实现：在接收来自网络设备的第一消息之后，向所述网络设备发送第二消息，所述第二消息用于确认所述第一消息。
一种可能的设计中，所述处理器还用于实现：向所述网络设备发送前导序列。
一种可能的设计中，所述处理器还用于实现：重启时间提前量定时器，所述时间提前量定时器超时之前所述时间提前量有效。
一种可能的设计中，所述前导序列承载于所述预配置的上行资源。
一种可能的设计中，所述时间提前量承载于DCI或MAC CE。
一种可能的设计中，所述通信装置为处于空闲态的终端设备。
可选的，上述通信装置还可包括所述存储器，其中，处理器与存储器耦合，所述处理器可读取所述存储器中的指令，以实现上述处理器的功能。
可选的，上述通信装置还可以包括收发器，用于支持所述通信装置进行信令或者数据的接收或发送，例如，所述收发器可以用于实现接收来自网络设备的第一消息，还可以用于实现在接收来自网络设备的第一消息之后向所述网络设备发送第二消息，还可以用于实现向所述网络设备发送前导序列。
第十五方面，本申请实施例提供另一种通信装置，该通信装置可以是网络设备，也可以是设置在网络设备中的结构或装置，例如，芯片、芯片系统或者电路系统等，该通信装 置包括至少一个处理器，所述至少一个处理器用于与存储器耦合，读取并执行所述存储器中的指令，以实现向终端设备发送第一消息，所述第一消息包括时间提前量和第一指示信息，所述第一指示信息用于指示释放预配置的上行资源，释放所述预配置的上行资源。
一种可能的设计中，所述处理器还用于实现：在所述处理器释放所述预配置的上行资源之前，接收来自所述终端设备的第二消息，所述第二消息用于确认所述第一消息。
一种可能的设计中，所述处理器还用于实现：接收来自所述终端设备的前导序列。
一种可能的设计中，所述处理器还用于实现：重启时间提前量定时器，所述时间提前量定时器超时之前所述时间提前量有效。
一种可能的设计中，所述前导序列承载于所述预配置的上行资源。
一种可能的设计中，所述时间提前量承载于DCI或MAC CE。
一种可能的设计中，所述终端设备为处于空闲态的终端设备。
可选的，上述通信装置还可包括所述存储器，其中，处理器与存储器耦合，所述处理器可读取所述存储器中的指令，以实现上述处理器的功能。
可选的，上述通信装置还可以包括收发器，用于支持所述通信装置进行信令或者数据的接收或发送，例如，所述收发器可以用于实现向终端设备发送第一消息，还可以用于实现在所述处理器释放所述预配置的上行资源之前接收来自所述终端设备的第二消息，还可以用于实现接收来自所述终端设备的前导序列。
第十六方面，本申请实施例提供另一种通信装置，用于实现上述第十二方面或第十二方面中的任意一种设计中的方法，包括相应的功能模块，例如包括处理单元、收发单元等，分别用于实现以上方法中的步骤。
第十七方面，本申请实施例提供另一种通信装置，用于实现上述第十三方面或第十三方面中的任意一种设计中的方法，包括相应的功能模块，例如包括处理单元、收发单元等，分别用于实现以上方法中的步骤。
第十八方面，本申请实施例提供一种芯片或芯片系统，该芯片或芯片系统可以与收发器耦合，用于实现上述第十二方面以及第十二方面中的任意一种可能的设计，或者第十三方面以及第十三方面中的任意一种可能的设计。所述芯片系统包含至少一个芯片，还可以包含其他分立器件。
第十九方面，本申请实施例提供一种通信系统，该系统包括上述第十四方面或第十四方面的任一可能的设计中的终端设备，和，上述第十五方面或第十五方面的任一可能的设计中的网络设备。
第二十方面，本申请实施例提供一种通信系统，该系统包括上述第十六方面的通信装置，和，上述第十七方面的通信装置。
第二十一方面，本申请实施例提供一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现第十二方面以及第十二方面中的任意一种可能的设计，或者第十三方面以及第十三方面中的任意一种可能的设计。
第二十二方面，本申请实施例提供一种计算机程序产品，当所述计算机程序产品被计算机运行时，可以使得计算机实现上述第十二方面以及第十二方面中的任意一种可能的设计，或者第十三方面以及第十三方面中的任意一种可能的设计。
附图说明
图1为本申请实施例提供的一种随机接入过程流程图；
图2为本申请实施例提供的一种时间提前量示意图；
图3为本申请实施例可应用的一种通信系统；
图4为本申请实施例提供的一种通信方法的流程图；
图5a为本申请实施例提供的一种发送前导序列的示意图；
图5b为本申请实施例提供的另一种发送前导序列的示意图；
图6为本申请实施例提供的另一种通信方法流程图；
图7为本申请实施例提供的又一种通信方法的流程图；
图8为本申请实施例提供的又一种通信方法流程图；
图9为本申请实施例提供的一种终端设备结构示意图；
图10为本申请实施例提供的另一种终端设备结构示意图；
图11为本申请实施例提供的一种网络设备结构示意图；
图12为本申请实施例提供的另一种网络设备结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述。
以下，对本申请实施例中的部分用语进行解释说明，以便于本领域技术人员理解。
1)终端设备，包括向用户提供语音和/或数据连通性的设备，例如可以包括具有无线连接功能的手持式设备、或连接到无线调制解调器的处理设备。该终端设备可以经无线接入网(radio access network，RAN)与核心网进行通信，与RAN交换语音和/或数据。该终端设备可以包括用户设备(user equipment，UE)、无线终端设备、移动终端设备、用户单元(subscriber unit)、用户站(subscriber station)，移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point，AP)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)、用户代理(user agent)、或用户装备(user device)等。例如，可以包括移动电话(或称为“蜂窝”电话)，具有移动终端设备的计算机，便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，智能穿戴式设备等。例如，个人通信业务(personal communication service，PCS)电话、无绳电话、会话发起协议(session initiation protocol，SIP)话机、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、等设备。还包括受限设备，例如功耗较低的设备，或存储能力有限的设备，或计算能力有限的设备等。例如包括条码、射频识别(radio frequency identification，RFID)、传感器、全球定位系统(global positioning system，GPS)、激光扫描器等信息传感设备。
作为示例而非限定，在本申请实施例中，该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜 等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能头盔、智能首饰等。
2)网络设备，例如包括基站(例如，接入点)，可以是指接入网中在空中接口上通过一个或多个小区与无线终端设备通信的设备。网络设备可用于将收到的空中帧与网际协议(IP)分组进行相互转换，作为终端设备与接入网的其余部分之间的路由器，其中接入网的其余部分可包括IP网络。网络设备还可协调对空中接口的属性管理。例如，网络设备可以包括长期演进(long term evolution，LTE)系统或演进的LTE系统(LTE-Advanced，LTE-A)中的演进型基站(NodeB或eNB或e-NodeB，evolutional Node B)，或者也可以包括第五代移动通信技术(fifth generation，5G)新无线(new radio，NR)系统中的下一代节点B(next generation node B，gNB)或者也可以包括云接入网(CloudRAN)系统中的集中式单元(centralized unit，CU)和分布式单元(distributed ynit，DU)，本申请实施例并不限定。
3)机器类型通信(machinet type communication，MTC)，又称为机器间通信(machine to machine，M2M)，或者物联网(internet of things，IoT)，顾名思义，是指物体与物体之间的通信，更进一步的，是指机器与机器之间的通信，该种通信方式中的通信节点可以称为MTC终端。未来物联网通信的主要可能涵盖智能电网、智能农业、智能交通、智能家居、医疗检测监控、物流检测、工业检测监控、汽车联网、智能社区以及环境检测等各个方面。
一类重要的MTC通信系统是基于现有蜂窝网络基础架构的通信系统，这一类MTC通信通常称为Cellular MTC或者Cellular IoT(简称CIoT)。第三代合作伙伴计划(3rd generation partnership project，3GPP)标准组织一直关注Cellular MTC的发展，并积极开展相关技术的标准化。具体地，目前对于Cellular MTC业务，对网络和UE的需求主要包括：
大的覆盖要求：当前可见MTC的业务一般不需要非常高的业务速率，但是需要能够支持很大覆盖。所谓大覆盖，是指MTC基站具有较强的覆盖增强技术，能够为较大穿透损耗(20dB)下的用户设备提供通信服务。例如智能家居、智能抄表服务中的用户设备——智能水/电表等一般都安装在室内、甚至地下室，现有蜂窝网络技术难以为这些位置的设备提供可靠的通信服务，而MTC基站必须为这类设备提供稳健的连接服务。
极高的连接数：对大规模部署的智能水/电表，智能社区，监控，汽车，可穿戴设备等物联网终端设备，一个MTC基站下可能存在大量这类型的终端设备(超过数万个甚至数十万个)，远远高于面向现有的移动终端数目。
低成本(low cost)：MTC终端设备的成本相对现有移动终端必须要低，低成本是MTC设备能够海量部署的先决条件。
低功耗(low power consumption)：由于MTC终端设备实际应用的多样性和各种各样的部署环境，MTC终端设备一般采用电池供电，如果要为如此巨大数目的设备更换电池，将耗费极高的人力成本和时间成本。MTC设备往往要求其各功能器件具有极低的功耗水平，这样设备可以有更长的待机时间，减少更换电池的次数。
4)窄带物联网(narrow band internet of things，NB-IoT)，是一种面向MTC的网络，是未来通信领域的一类重要网络。目前3GPP标准在研究基于蜂窝网络，通过设计新的空口，充分利用窄带技术的特点，来承载IoT业务，这一类IoT被称为NB-IoT。与传统的蜂窝网络相比，NB-IoT系统的业务和终端设备具有以下特点：
(1)业务低速率：与传统的蜂窝网络相比，NB-IoT业务产生的数据包更小，同时对于时延通常不是很敏感。
(2)海量连接要求：对大规模部署的智能水/电表，智能家居，汽车，可穿戴设备等物联网终端设备，一个NB-IoT的基站下可能覆盖大量这类型的终端设备，例如数量可能超过数万个。
(3)低成本要求：相较于现有的蜂窝网络终端设备来说，NB-IoT系统要求终端设备的成本更低，以实现终端设备的海量部署。而低成本的需求要求终端设备的实现复杂性也要很低。
(4)低功耗要求：NB-IoT系统要求终端设备的功耗更低，从而节约终端设备的电池电量，保证终端设备超长的待机时间，进而节约更换电池的人力成本。
(5)覆盖增强要求：由于大部分NB-IoT系统部署在网络覆盖较差的环境下，比如电表、水表等通常安装在室内甚至地下室等无线网络信号很差的地方，因此需要通过覆盖增强技术来增强网络覆盖。
为了应对上述低成本、深覆盖等需求，NB-IoT系统有很多特有的设计。例如，为了实现深覆盖，NB-IoT系统的控制信道(例如窄带物理下行控制信道(narrow physical downlink control channel，NPDCCH))和数据信道(例如窄带物理下行共享信道(narrow physical cownlink shared channel，NPDSCH)、窄带物理上行共享信道(narrow physical uplink shared channel，NPUSCH))采用重复发送的方式，对于同样的内容，通过成百上千次的重复发送，提高覆盖较差的终端设备成功接收的可能性。
5)随机接入过程，随机接入过程是指从终端设备发送随机接入前导码(random access preamble)开始尝试接入网络，到与网络设备建立起基本的信令连接之前的过程。随机接入是移动通信系统中非常关键的步骤，也是终端设备与网络设备建立通信链路的最后一步。例如，终端设备通过随机接入过程与网络设备进行信息交互，完成后续操作，例如呼叫、资源请求、或数据传输等，另外，终端设备还可以通过随机接入实现与系统的上行时间同步。
其中，随机接入过程可以分为竞争的随机接入过程和无竞争的随机接入过程。本申请实施例主要以基于竞争的随机接入过程为例进行说明。
基于竞争的随机接入过程大体可包括4个步骤，参阅图1所示：
步骤101、终端设备向网络设备发送随机接入前导码(random access preamble)，则网络设备从终端设备接收随机接入前导码，其中，该随机接入前导码又被称为随机接入过程中的第1消息(MSG1)。
步骤102、网络设备向终端设备发送随机接入响应(random access response，RAR)消息，则终端设备从网络设备接收RAR消息，其中，该RAR消息又被称为随机接入过程中的第2消息(MSG2)。
步骤103、终端设备向网络设备发送用于建立无线资源控制(radio resource control，RRC)连接的上行信令，则网络设备从终端设备接收该上行信令。其中，该上行信令又被称为随机接入过程中的第3消息(MSG3)，该上行信令通常可以包括RRC信令部分和媒体接入控制控制元素(media access control control element，MAC CE)等，RRC信令根据不同的场景可以不同，例如为RRC连接建立请求、RRC重建立请求和RRC恢复请求等。
步骤104、网络设备向终端设备发送RRC连接建立消息，则终端设备从网络设备接收 RRC连接建立消息，其中，该RRC连接建立消息又被称为随机接入过程中的第4消息(MSG4)。
6)时间提前量(timing advance，TA)，是指上行发送相对于下行的偏移，也可以理解为上行无线帧i在相应的下行无线帧i之前的(N TA+N TA offset)×T s秒开始，其中，N TA是指定时提前控制变量，具体取值可以通过基站配置。N TA offset是指定时提前控制变量的偏移，T s是指时间单元，可以为1/(15000×2048)秒，参阅图2所示。其中，TA的目的是使离基站不同距离的终端设备发送的上行信号都能同时到达基站。关于TA具体的描述可以参考协议TS 36.211 section 8。
7)本申请实施例中的术语“系统”和“网络”可被互换使用，以及术语“字段”和“域”可被互换使用。“多个”是指两个或两个以上，鉴于此，本申请实施例中也可以将“多个”理解为“至少两个”。“至少一个”，可理解为一个或多个，例如理解为一个、两个或更多个。例如，包括至少一个，是指包括一个、两个或更多个，而且不限制包括的是哪几个，例如，包括A、B和C中的至少一个，那么包括的可以是A，B，C，A和B，A和C，B和C，或A和B和C。“至少两个”，可理解为两个或更多个。同理，对于“至少一种”等描述的理解，也是类似的。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，或单独存在B这三种情况。另外，字符“/”，如无特殊说明，一般表示前后关联对象是一种“或”的关系。
以及，除非有相反的说明，本申请实施例提及“第一”、“第二”等序数词是用于对多个对象进行区分，不用于限定多个对象的顺序、时序、优先级或者重要程度。
本申请实施例可以适用于各类通信系统，例如，可以适用于NB-IoT系统、IoT系统、MTC系统，eMTC系统，LTE系统、LTE-A系统、新无线(new radio，NR)系统或未来通信发展中出现的新的通信系统等。只要通信系统中存在一个实体需要发送时间提前量，另一个实体需要接收该时间提前量，并根据该时间提前量重新设置预配置的上行资源的有效时长，均可以采用本申请实施例提供的通信方法。
参阅图3所示，为本申请实施例可应用的一种通信系统，在图3所示出的通信系统中包括网络设备和六个终端设备，终端设备1～终端设备6中的任一终端设备可以向网络设备发送上行数据。此外，终端设备4～终端设备6也可以组成一个子通信系统。网络设备可以发送下行信息给终端设备1、终端设备2、终端设备3、终端设备5，终端设备5可以基于设备到设备(device-to-device，D2D)技术发送下行信息给终端设备4、终端设备6。图3仅是一种示意图，并不对通信系统的类型，以及通信系统内包括的设备的数量、类型等进行具体限定。
本申请实施例描述的网络架构以及业务场景是为了说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
基于图3所示的通信系统，一般情况下，当终端设备2有上行数据需要向网络设备发送时，先向网络设备申请上行传输资源。网络设备向终端设备2发送上行传输调度信息。终端设备2根据该上行传输调度信息进行上行数据传输。NB-IoT Release 16将研究上行免调度传输(grant-free transmission或uplink transmission in preconfigured resources或transmission in preconfigured uplink resources)，上行免调度传输中，终端设备2有上行数据 需要向网络设备发送时，直接在网络设备为终端设备2预先配置的上行免调度资源上按照预先规定的发送方式进行上行传输，其中该上行免调度资源也可以称为预配置的上行资源(preconfigured uplink resources，PUR)。需要说明的是，本申请中对该上行免调度资源的名称不做限定，本申请实施例以下以将该上行免调度资源称为预配置的上行资源为例进行说明。
基于图3所示的通信系统，终端设备1～终端设备6中的任一终端设备可能处于两种状态：空闲态或连接态。其中，处于空闲态的终端设备可以理解为处于睡眠状态，周期性的醒来监听寻呼。如果处于空闲态的终端设备监听到了寻呼，或者处于空闲态的终端设备有上行数据要发送，处于空闲态的终端设备会醒来发起随机接入过程进入连接态，在连接态发送上行数据或接收下行数据。处于连接态的终端设备已经从睡眠状态醒来，已与网络设备建立连接，可以发送上行数据或接收下行数据。NB-IoT Release 16中研究的上行免调度传输可以应用于连接态的终端设备，也可以应用于空闲态的终端设备。空闲态的终端设备进行上行免调度传输时可以不向网络设备发起随机接入过程，也就是说，空闲态的终端设备进行上行免调度传输时无需进入连接态，可以直接进行上行免调度传输。需要说明的是，本申请实施例中处于空闲态的终端设备也可以称为空闲态终端设备、空闲态的终端设备或idle终端设备等；本申请实施例中处于连接态的终端设备也可以称为连接态终端设备、连接态的终端设备等。
基于图3所示的通信系统，终端设备1～终端设备6中的各个终端设备的位置不同，各个终端设备发送的上行数据到达网络设备的时间可能不同，这会造成用户间的干扰。因此，终端设备1～终端设备6中的各个终端设备在进行上行免调度传输时，必须使用有效的时间提前量，以使各个终端设备进行上行免调度传输时发送的数据可以同时到达网络设备，从而可以避免终端设备间的干扰。
以图3所示的通信系统为NB-IoT为例，对于空闲态的终端设备，网络设备可以通过估计终端设备的上行定时，并根据估计的上行定时向终端设备发送TA，终端设备根据TA调整上行传输时间，使小区内各个终端设备发送的上行数据到达网络设备的时间相同。网络设备在给该终端设备发送TA后会开启一个时间提前量定时器(time alignment timer，TA timer)，终端设备收到TA后也会开启一个相同的TA timer，网络设备和终端设备均维持TA timer，可以根据TA timer是否超时来判断TA是否有效。如果TA timer未超时，则认为TA是有效的，反之，认为TA是无效的。当空闲态的终端设备有上行数据要进行传输时，若确定TA timer未超时，即确定TA有效，则无需网络设备的调度，可直接在预配置的上行资源上按照预先规定的发送方式进行上行数据传输。需要说明的是，本申请实施例中所涉及的“TA是有效的”或“TA有效”可以理解为TA是准确的，即可以保证该终端设备采用该TA发送的上行数据可以与其他终端设备发送的上行数据到达网络设备的时间相同，从而避免终端设备之间的干扰。本申请实施例中所涉及的“TA是无效的”或“TA无效”可以理解为TA是不准确的，终端设备采用该TA发送的上行数据与其他终端设备发送的上行数据到达网络设备的时间不相同，从而可能造成终端设备之间的干扰。
目前，预配置的上行资源的有效时长是基站为终端设备配置的或预定义的，在该有效时长内允许该终端设备在处于空闲态时使用该预配置的上行资源。而无论是预定义的方式还是基站配置的方式，该终端设备只能在预配置的上行资源的有效时长失效以后重新配置预配置的上行资源的有效时长，这两种配置上行免调度资源的方式均不够灵活，因此，如 何更灵活地配置上行免调度资源的是需要解决的一个技术问题。
基于此本申请实施例提供一种通信方法及装置，用以在上行免调度传输中，灵活地配置上行免调度资源的。其中，方法和装置是基于同一发明构思的，由于方法及装置解决问题的原理相似，因此装置与方法的实施可以相互参见，重复之处不再赘述。
参阅图4所示，其为本申请实施例提供的一种通信方法的流程图。该方法包括以下步骤：
步骤201：网络设备向终端设备发送时间提前量，终端设备接收来自网络设备的时间提前量。本申请实施例中，所述时间提前量可以是网络设备首次向终端设备发送的时间提前量，也可以是网络设备向终端设备发送的更新后的时间提前量，本申请对此不做限定。
其中，所述时间提前量可以承载于下行控制信息(downlink control information，DCI)或媒体接入控制(medium access control，MAC)控制元素(MAC control element，MAC CE)。所述时间提前量承载于DCI可以理解为通过DCI发送所述时间提前量，类似的，所述时间提前量承载于MAC CE可以理解为通过MAC CE发送所述时间提前量。
本申请实施例中，网络设备向终端设备发送的时间提前量，可以是网络设备专门发送给该终端设备的时间提前量，该时间提前量是适用于该终端设备的时间提前量。
本申请实施例提供的通信方法，可以应用于处于空闲态的终端设备，也可以应用于处于连接态的终端设备，本申请实施例中以将该方法应用于处于空闲态的终端设备为例示意说明，下文中所涉及的终端设备若无特殊说明均是指空闲态的终端设备。
一种可能的实现方式中，执行步骤201之前，终端设备还可以向网络设备发送前导序列，相应的，执行步骤201之前，网络设备还可以接收来自终端设备的前导序列。该前导序列可以是网络设备指定给特定终端设备的专用前导序列，也可以是随机接入过程中的前导序列，即随机接入前导码。参阅图5a-图5b所示，图5a中以前导序列(preamble)为随机接入过程中的随机接入前导码(random access preamble)为例进行示意，图5b中以前导序列(preamble)为网络设备发送给特定终端设备的专用前导序列为例进行示意。
示例性地，终端设备向网络设备发送的前导序列可以承载于新配置的专用资源，其中，前导序列承载于新配置的专用资源可以理解为在新配置的专用资源上发送前导序列。
示例性地，终端设备向网络设备发送的前导序列可以承载于预配置的上行资源，其中，前导序列承载于预配置的上行资源可以理解为在所述预配置的上行资源上发送前导序列，也可以理解为发送前导序列的资源属于预配置的上行资源，也可以理解为发送前导序列的资源为预配置的上行资源的一部分或全部。通过该方法，终端设备可以在TA timer超时后，使用预配置的上行资源发送前导序列，无需为前导序列分配新的资源，可提高资源利用率。
一种可能的实现方式中，执行步骤201之后，终端设备还可以重启(restart或reset)时间提前量定时器(time alignment timer，TA timer)；相应的，执行步骤201之后，网络设备还可以重启(restart或reset)时间提前量定时器。其中，时间提前量定时器超时之前时间提前量有效，可以理解为TA timer用于控制TA的有效时间，也可以理解为TA timer用于控制终端设备认为TA有效的时间，也可以理解为TA timer用于控制终端设备认为当前服务小区上行定时是对齐的时间，也可以理解为TA timer超时之前终端设备认为上行定时是对齐的。重启时间提前量定时器可以理解为时间提前量定时器重新开始计时。
步骤202a：网络设备根据时间提前量重新设置预配置的上行资源(preconfigured uplink resources，PUR)的有效时长。
本申请实施例中，预配置的上行资源是指在上行免调度传输中，网络设备为终端设备预先配置的上行免调度资源，上行免调度传输中，终端设备有上行数据需要向网络设备发送时，直接在网络设备为终端设备预先配置的上行免调度资源上按照预先规定的发送方式进行上行传输，本申请中对该预配置的上行资源的名称不做限定。
本申请实施例中，预配置的上行资源的有效时长可以理解为预配置的上行资源可被终端设备使用的时长，可以理解为，处于空闲态的终端设备在预配置的上行资源的有效时长内可以使用预配置的上行资源，或者处于空闲态的终端设备在预配置的上行资源的有效时长内认为预配置的上行资源是有效的，或者处于空闲态的终端设备在预配置的上行资源的有效时长内认为预配置的上行资源是激活的。本申请实施例中，预配置的上行资源在所述有效时长内有效，预配置的上行资源有效时，允许终端设备使用该预配置的上行资源。
基于上述步骤202a，示例性地，网络设备根据时间提前量重新设置预配置的上行资源的有效时长，可以但不限于通过如下两种方式中的任一种方式实现：
方式一，网络设备可以重启(restart或reset)定时器，在该定时器超时之前预配置的上行资源有效，此外，在该定时器超时后可以释放预配置的上行资源，其中，该定时器也可以称为预配置的上行资源定时器(PUR resource timer)，本申请对该定时器的名称不做限定。本申请实施例中，在该定时器超时之前预配置的上行资源有效，可以理解为该定时器用于控制预配置的上行资源的有效时间，也可以理解为该定时器用于控制终端设备认为预配置的上行资源有效的时间，也可以理解为该定时器用于控制终端设备认为可以使用预配置的上行资源的时间，也可以理解为该定时器超时之前终端设备认为预配置的上行资源是可以使用的。其中，重启该定时器可以理解为该定时器重新开始计时。
方式二，网络设备可以根据时间提前量的发送时刻，确定第一时长的起始时刻，第一时长内预配置的上行资源有效。其中，第一时长内预配置的上行资源有效，可以理解为第一时长为预配置的上行资源的有效时长，也可以理解为在第一时长内终端设备认为预配置的上行资源是可以使用的。
基于上述方式二，示例性地，网络设备可以将时间提前量的发送时刻，确定为第一时长的起始时刻。例如，假设通过DCI发送时间提前量，则可以将承载该DCI的NPDCCH的开始子帧n或者结束子帧n确定为第一时长的起始时刻，若假设第一时长的长度为m个子帧，则第一时长是指从子帧n到子帧n+m-1的时长。又例如，假设通过MAC CE发送时间提前量，则可以将承载该MAC CE的NPDSCH的开始子帧n或者结束子帧n确定为第一时长的起始时刻，若假设第一时长的长度为m个子帧，则第一时长是指从子帧n到子帧n+m-1的时长。示例性地，网络设备可以将时间提前量的发送时刻与预设的偏移值相加得到第一时长的起始时刻。例如，假设通过DCI发送时间提前量，则可以将承载该DCI的NPDCCH的开始子帧n与预设的偏移值x相加得到第一时长的起始时刻n+x，若假设第一时长的长度为m个子帧，则第一时长是指从子帧n+x到子帧n+x+m-1的时长。又例如，假设通过MAC CE发送时间提前量，则可以将承载该MAC CE的NPDSCH的开始子帧n与预设的偏移值x相加得到第一时长的起始时刻n+x，若假设第一时长的长度为m个子帧，则第一时长是指从子帧n+x到子帧n+x+m-1的时长。
步骤202b：终端设备根据时间提前量重新设置预配置的上行资源的有效时长。示例性地，终端设备根据时间提前量重新设置预配置的上行资源的有效时长，可以但不限于通过如下两种方式中的任一种方式实现：
方式1，终端设备可以重启(restart或reset)定时器，在该定时器超时之前预配置的上行资源有效。其中，该定时器与方式一中定时器含义相同，此处不再赘述，详见方式一中关于定时器的描述。需要说明的是，该方式1中的定时器与上述方式一中的定时器可以是相同的定时器，也可以是不同的定时器，本申请对此不做限定。其中，本申请中定时器相同可以理解为定时器的计时时长相同，也可以理解为定时器的计时时长相同且定时器开始计时的时刻相同。
方式2，终端设备可以根据时间提前量的接收时刻，确定第一时长的起始时刻，第一时长内预配置的上行资源有效。其中，第一时长内预配置的上行资源有效，可以理解为第一时长为预配置的上行资源的有效时长，也可以理解为在第一时长内终端设备认为预配置的上行资源是可以使用的。
基于上述方式2，示例性地，终端设备可以将时间提前量的接收时刻，确定为第一时长的起始时刻。例如，假设通过DCI发送时间提前量，则可以将承载该DCI的NPDCCH的结束子帧n确定为第一时长的起始时刻，若假设第一时长的长度为m个子帧，则第一时长是指从子帧n到子帧n+m-1的时长。又例如，假设通过MAC CE发送时间提前量，则可以将承载该MAC CE的NPDSCH的结束子帧n确定为第一时长的起始时刻，若假设第一时长的长度为m个子帧，则第一时长是指从子帧n到子帧n+m-1的时长。示例性地，终端设备可以将时间提前量的接收时刻与预设的偏移值相加得到第一时长的起始时刻。例如，假设通过DCI发送时间提前量，则可以将承载该DCI的NPDCCH的结束子帧n与预设的偏移值x相加得到第一时长的起始时刻n+x，若假设第一时长的长度为m个子帧，则第一时长是指从子帧n+x到子帧n+x+m-1的时长。又例如，假设通过MAC CE发送时间提前量，则可以将承载该MAC CE的NPDSCH的结束子帧n与预设的偏移值x相加得到第一时长的起始时刻n+x，若假设第一时长的长度为m个子帧，则第一时长是指从子帧n+x到子帧n+x+m-1的时长。
一种可能的实现方式中，可以由网络设备的指示信息触发终端设备根据时间提前量重新设置预配置的上行资源的有效时长。基于该种实现方式的一个举例，网络设备可以向终端设备发送时间提前量以及重设指示信息，终端设备接收来自网络设备的时间提前量以及重设指示信息，该重设指示信息用于指示重新设置预配置的上行资源的有效时长，进而终端设备根据时间提前量以及重设指示信息重新设置预配置的上行资源的有效时长。需要说明的是，在该种实现方式中，时间提前量与重设指示信息可以同时发送，也可以分开发送。
需要说明的是，本申请实施例中并不限定步骤202a与步骤202b执行的先后顺序。例如，一种可能的实现方式中，先执行步骤202a，后执行步骤202b。另一种可能的实现方式中，先执行步骤202b，后执行步骤202a。又一种可能的实现方式中，同时执行步骤202a和步骤202b。
通过本申请实施例提供的上述方法，终端设备无需等到预配置的上行资源的有效时长失效后更新预配置的上行资源的有效时长，终端设备可以主动根据时间提前量重新设置预配置的上行资源的有效时长，使得预配置的上行资源的有效时长的配置更灵活，进而可提升配置免调度上行资源的灵活性。此外，本申请改进之处不仅在于可由终端设备主动重新设置预配置的上行资源的有效时长，而且通过该方法，终端设备根据时间提前量来重新设置预配置的上行资源的有效时长，终端设备在接收到网络设备发送的时间提前量时，可以确定此时时间提前量是有效的，而时间提前量有效的情况下必然可以使用预配置的上行资 源，此时重新设置预配置的上行资源的有效时长，可最大限度地延长预配置的上行资源的使用时间。
下面结合图6，对本申请实施例提供的通信方法进行举例说明。参阅图6所示，为本申请实施例提供的另一种通信方法流程图，图6中以终端设备为idle UE(空闲态的UE)、网络设备为eNB为例进行说明。图6所示的方法包括以下步骤：
步骤501：idle UE向eNB发送前导序列，eNB接收来自idle UE的前导序列。在该举例中，以该前导序列为eNB发送给该特定idle UE的专用前导序列为例示意，其中特定idle UE的专用前导序列可以理解为该前导序列只适用于该idle UE。
步骤502：eNB向idle UE发送时间提前量，idle UE接收来自eNB的时间提前量。
步骤503a：eNB重启时间提前量定时器以及预配置的上行资源定时器。
步骤503b：idle UE重启时间提前量定时器以及预配置的上行资源定时器。
在该举例中，步骤503a中eNB重启的定时器与步骤503b中idle UE重启的定时器可以是相同的定时器，也可以是不同的定时器。
通过上述方法，idle UE在接收到eNB发送的时间提前量之后，若恰好预配置的上行资源定时器超时或即将超时，则idle UE无法使用或即将无法使用预配置的上行资源，而通过本申请的方法idle UE在接收到eNB发送的时间提前量之后，重启预配置的上行资源定时器，可避免时间提前量更新后idle UE不能使用预配置的上行资源。
本申请上文中描述的通信方法，用以解决现有技术中更新预配置的上行资源的有效时长不够灵活的技术问题。除该技术问题外，现有技术中还存在另一个技术问题。现有技术中，终端设备和基站只能在预配置的上行资源的有效时长过后，才可以释放预配置的上行资源，该种释放预配置的上行资源的方法不够灵活，如何灵活的释放预配置的上行资源是需要解决的另一个技术问题。
基于此本申请实施例提供另一种通信方法及装置，用以在上行免调度传输中，灵活的释放预配置的上行资源。其中，方法和装置是基于同一发明构思的，由于方法及装置解决问题的原理相似，因此装置与方法的实施可以相互参见，重复之处不再赘述。
参阅图7所示，其为本申请实施例提供的另一种通信方法的流程图。该方法包括以下步骤：
步骤601：网络设备向终端设备发送第一消息，终端设备接收来自网络设备的第一消息，其中，所述第一消息包括时间提前量和第一指示信息，所述第一指示信息用于指示终端设备释放预配置的上行资源。
本申请实施例中，时间提前量与预配置的上行资源的含义与图4提供的实施例中的含义相同，可相互参见，此处不再赘述。
本申请实施例提供的通信方法，可以应用于空闲态的终端设备，也可以应用于连接态的终端设备，本申请实施例中以将该方法应用于空闲态的终端设备为例示意说明，下文中所涉及的终端设备若无特殊说明均是指空闲态的终端设备。
本申请实施例中，所述第一消息可以承载于DCI或MAC CE。所述第一消息承载于DCI可以理解为通过DCI发送所述第一消息，类似的，所述第一消息承载于MAC CE可以理解为通过MAC CE发送所述第一消息。以通过DCI发送所述第一消息为例，可以在DCI中包括至少两个域，一个域用于指示时间提前量，另一个域用于指示释放和/或保留预配置的上行资源。示例性地，DCI指示时间提前量可以指示一个绝对的时间提前量， 或者指示一个间接的时间提前量。示例性地，DCI可以用1比特来指示释放和/或保留预配置的上行资源，例如，当1比特的取值为1时指示释放预配置的上行资源，当1比特的取值为0时指示保留预配置的上行资源，或者，当1比特的取值为0时指示释放预配置的上行资源，当1比特的取值为1时指示保留预配置的上行资源。以通过MAC CE发送所述第一消息为例，假设采用MSG2发送所述第一消息，MSG2本身可以携带时间提前量，可将MSG2中除指示时间提前量的域重新解释为释放和/或保留预配置的上行资源。
一种可能的实现方式中，网络设备发送所述第一消息可以使用专用的RNTI(radio network temporary identifier)进行加扰，即承载该第一消息的DCI和/或NPDSCH可以用专用的RNTI进行加扰，相应的，终端设备可以使用专用的RNTI进行解扰，采用该方法仅该终端设备可以接收到该第一消息。
一种可能的实现方式中，当网络设备通过MSG2发送所述第一消息时，可以使用RA-RNTI进行加扰，相应的，终端设备可以使用RA-RNTI进行解扰。在该种实现方式中，还可以在MSG2中携带随机接入前导序列标识(random access preamble ID，RAPID)，各个终端设备可以根据RAPID接收属于自己的第一消息。
本申请实施例中，网络设备发送所述第一消息时使用的搜索空间(search space)可以包括PUR的搜索空间或type2-NPDCCH-CSS(CSS:common search space)。所述PUR的搜索空间是指为PUR这个特性专门定义的一个搜索空间，具体可以包括该搜索空间的周期、偏移或聚合等级(aggregation level)等。
一种可能的实现方式中，执行步骤601之前，终端设备还可以向网络设备发送前导序列，相应的，执行步骤601之前，网络设备还可以接收来自终端设备的前导序列。该前导序列可以是网络设备发送给特定终端设备的专用前导序列，也可以是随机接入过程中的前导序列。
示例性地，终端设备向网络设备发送的前导序列可以承载于新配置的专用资源，也可以承载于预配置的上行资源。详见图4中相关描述。
一种可能的实现方式中，执行步骤601之后，终端设备还可以重启(restart或reset)时间提前量定时器(time alignment timer，TA timer)；相应的，执行步骤601之后，网络设备还可以重启(restart或reset)时间提前量定时器。关于时间提前量定时器的含义可以参见图4中相关描述。
一种可能的实现方式中，执行步骤601之后，终端设备向网络设备发送第二消息，网络设备接收来自终端设备的第二消息。第二消息用于确认第一消息，其中第二消息用于确认第一消息可以理解为终端设备通过第二消息通知网络设备接收到了第一消息。第二消息可以理解为确认消息，可以用于确认终端设备收到第一消息，或者也可以用于确认收到第一消息中包括的时间提前量和/或第一指示信息。该实例中，第二消息可以是物理层的消息，通过NPUSCH format 2或者NPUSCH format 1发送，第二消息也可以是高层的消息，例如可以为一个释放确认(release confirmation)MAC CE。示例性地，第二消息可以通过预配置的上行资源发送，也可以通过基站动态配置的资源发送。
步骤602a：网络设备释放预配置的上行资源。
步骤602b：终端设备释放预配置的上行资源。
通过图7提供的通信方法，终端设备和网络设备无需等到预配置的上行资源的有效时长失效后释放预配置的上行资源，可以在网络设备向终端设备发送时间提前量时，释放预 配置的上行资源，可灵活释放预配置的上行资源。
下面结合图8，对本申请实施例提供的另一种通信方法进行举例说明。参阅图8所示，为本申请实施例提供的又一种通信方法流程图，图8中以终端设备为idle UE(空闲态的UE)、网络设备为eNB为例进行说明。图8所示的方法包括以下步骤：
步骤701：idle UE向eNB发送前导序列，eNB接收来自idle UE的前导序列。在该举例中，以该前导序列为eNB发送给该特定idle UE的专用前导序列为例示意。
步骤702：eNB向idle UE发送第一消息，idle UE接收来自eNB的第一消息。其中，所述第一消息包括时间提前量和第一指示信息，所述第一指示信息用于指示终端设备释放预配置的上行资源。
步骤703：idle UE向eNB发送第二消息，eNB接收来自idle UE的第二消息。第二消息确认收到第一消息。
步骤704a：eNB释放预配置的上行资源。
步骤704b：idle UE释放预配置的上行资源。
通过图8提供的方法，在eNB检测到idle UE通过预配置的上行资源发送的上行数据，确定idle UE的时间提前量不准，同时eNB的资源比较紧张，想要释放预配置的上行资源时，可以将时间提前量和第一指示信息通过第一消息同时发送给idle UE，可节省信令开销。
基于同一发明构思，本申请实施例还提供一种终端设备，该终端设备可以具有如图9所示的结构，且具有上述方法实施例中终端设备的行为功能。如图9所示，该终端设备900可包括收发单元901以及处理单元902，所述收发单元901可以用于接收来自网络设备的时间提前量，所述处理单元902可以用于根据所述时间提前量，重新设置预配置的上行资源的有效时长。或者，所述收发单元901可以用于接收来自网络设备的第一消息，所述第一消息包括时间提前量和第一指示信息，所述第一指示信息用于指示释放预配置的上行资源，所述处理单元902可以用于释放所述预配置的上行资源。在实施中，终端设备900还可具有存储单元903，存储单元903可与处理单元902耦合，用于存储处理单元902执行功能所需的程序、指令。
一种可能的设计中，所述处理单元902具体用于实现：
重启定时器，所述定时器超时之前预配置的上行资源有效。
一种可能的设计中，所述处理单元902具体用于实现：
根据所述时间提前量的接收时刻，确定第一时长的起始时刻，所述第一时长内所述预配置的上行资源有效。
一种可能的设计中，所述收发单元901还用于实现：
在接收来自所述网络设备的第一消息之后，向所述网络设备发送第二消息，所述第二消息用于确认所述第一消息。
一种可能的设计中，所述收发单元901还用于实现：
向所述网络设备发送前导序列。
一种可能的设计中，所述处理单元902还用于实现：
重启时间提前量定时器，所述时间提前量定时器超时之前所述时间提前量有效。
一种可能的设计中，所述前导序列承载于所述预配置的上行资源。
一种可能的设计中，所述时间提前量承载于下行控制信息DCI或媒体接入控制元素MAC CE。
一种可能的设计中，所述终端设备900为处于空闲态的终端设备。
此外，本申请实施例所涉及的终端设备还可具有如图10所示终端设备1000具有的结构，该终端设备1000可以包括至少一个处理器1002，所述至少一个处理器1002用于与存储器耦合，读取并执行所述存储器中的指令以实现本申请实施例提供的方法中终端设备涉及的步骤。可选的，该终端设备1000还可以包括收发器1001，用于支持所述通信装置进行信令或者数据的接收或发送。如图10所示的终端设备1000中的收发器1001，可用于实现上述收发单元901所具有的功能，例如，收发器1001可用于终端设备1000执行如图4所示的通信方法中的S201所示步骤，以及执行如图7所示的通信方法中的S601所示步骤，处理器1002可用于实现上述处理单元902所具有的功能，例如，处理器1002可用于终端设备1000执行如图4所示的通信方法中的S202b所示步骤，以及执行如图7所示的通信方法中的S602b所示步骤。此外，收发器1001可与天线1003耦合，用于支持终端设备1000进行通信。可选的，终端设备1000还可以包括存储器1004，其中存储有计算机程序、指令，存储器1004可以与处理器1002和/或收发器1001耦合，用于支持处理器1002调用存储器1004中的计算机程序、指令以实现本申请实施例提供的方法中终端设备涉及的步骤；另外，存储器1004还可以用于存储本申请方法实施例所涉及的数据，例如，用于存储支持收发器1001实现交互所必须的数据、指令，和/或，用于存储终端设备1000执行本申请实施例所述方法所必须的配置信息。
基于同一发明构思，本申请实施例还提供一种网络设备，该网络设备可以具有如图11所示的结构，且具有上述方法实施例中网络设备的行为功能。如图11所示，该网络设备1100可包括收发单元1101以及处理单元1102，所述收发单元1101可以用于向终端设备发送时间提前量，所述处理单元1102可以用于根据所述时间提前量，重新设置预配置的上行资源的有效时长。或者，所述收发单元1101可以用于向终端设备发送第一消息，所述第一消息包括时间提前量和第一指示信息，所述第一指示信息用于指示释放预配置的上行资源，所述处理单元1102可以用于释放所述预配置的上行资源。在实施中，网络设备1100还可具有存储单元1103，存储单元1103可与处理单元1102耦合，用于存储处理单元1102执行功能所需的程序、指令。
一种可能的设计中，所述处理单元1102具体用于实现：
重启定时器，所述定时器超时之前预配置的上行资源有效。
一种可能的设计中，所述处理单元1102具体用于实现：
根据所述时间提前量的发送时刻，确定第一时长的起始时刻，所述第一时长内所述预配置的上行资源有效。
一种可能的设计中，所述收发单元1101还用于实现：
在所述处理单元1102释放所述预配置的上行资源之前，接收来自所述终端设备的第二消息，所述第二消息用于确认所述第一消息。
一种可能的设计中，所述收发单元1101还用于实现：
接收来自所述终端设备的前导序列。
一种可能的设计中，所述处理单元1102还用于实现：
重启时间提前量定时器，所述时间提前量定时器超时之前所述时间提前量有效。
一种可能的设计中，所述前导序列承载于所述预配置的上行资源。
一种可能的设计中，所述时间提前量承载于下行控制信息DCI或媒体接入控制元素 MAC CE。
一种可能的设计中，所述终端设备为处于空闲态的终端设备。
此外，本申请实施例所涉及的网络设备还可具有如图12所示网络设备1200具有的结构，该网络设备1200可以包括至少一个处理器1202，所述至少一个处理器1202用于与存储器耦合，读取并执行所述存储器中的指令以实现本申请实施例提供的方法中终端设备涉及的步骤。可选的，该终端设备1000还可以包括收发器1201，用于支持所述通信装置进行信令或者数据的接收或发送。如图12所示的网络设备1200中的收发器1201，可用于实现上述收发单元901所具有的功能，例如，收发器1201可用于网络设备1200执行如图4所示的通信方法中的S201所示步骤，以及执行如图7所示的通信方法中的S601所示步骤，处理器1202可用于实现上述处理单元902所具有的功能，例如，处理器1202可用于网络设备1200执行如图4所示的通信方法中的S202a所示步骤，以及执行如图7所示的通信方法中的S602a所示步骤。此外，收发器1201可与天线1203耦合，用于支持网络设备1200进行通信。可选的，网络设备1200还可以包括存储器1204，其中存储有计算机程序、指令，存储器1204可以与处理器1202和/或收发器1201耦合，用于支持处理器1202调用存储器1204中的计算机程序、指令以实现本申请实施例提供的方法中网络设备涉及的步骤；另外，存储器1204还可以用于存储本申请方法实施例所涉及的数据，例如，用于存储支持收发器1201实现交互所必须的数据、指令，和/或，用于存储网络设备1200执行本申请实施例所述方法所必须的配置信息。
基于与上述方法实施例相同构思，本申请实施例还提供了一种计算机可读存储介质，其上存储有一些指令，这些指令被计算机调用执行时，可以使得计算机完成上述方法实施例、方法实施例的任意一种可能的设计中所涉及的方法。本申请实施例中，对计算机可读存储介质不做限定，例如，可以是RAM(random-access memory，随机存取存储器)、ROM(read-only memory，只读存储器)等。
基于与上述方法实施例相同构思，本申请还提供一种计算机程序产品，该计算机程序产品在被计算机调用执行时可以完成方法实施例以及上述方法实施例任意可能的设计中所涉及的方法。
基于与上述方法实施例相同构思，本申请还提供一种芯片，该芯片与收发器耦合，用于完成上述方法实施例、方法实施例的任意一种可能的实现方式中所涉及的方法，其中，“耦合”是指两个部件彼此直接或间接地结合，这种结合可以是固定的或可移动性的，这种结合可以允许流动液、电、电信号或其它类型信号在两个部件之间进行通信。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用 介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘(Solid State Disk，SSD))等。
本申请实施例中所描述的各种说明性的逻辑单元和电路可以通过通用处理器，数字信号处理器，专用集成电路(ASIC)，现场可编程门阵列(FPGA)或其它可编程逻辑装置，离散门或晶体管逻辑，离散硬件部件，或上述任何组合的设计来实现或操作所描述的功能。通用处理器可以为微处理器，可选地，该通用处理器也可以为任何传统的处理器、控制器、微控制器或状态机。处理器也可以通过计算装置的组合来实现，例如数字信号处理器和微处理器，多个微处理器，一个或多个微处理器联合一个数字信号处理器核，或任何其它类似的配置来实现。
本申请实施例中所描述的方法或算法的步骤可以直接嵌入硬件、处理器执行的软件单元、或者这两者的结合。软件单元可以存储于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、可移动磁盘、CD-ROM或本领域中其它任意形式的存储媒介中。示例性地，存储媒介可以与处理器连接，以使得处理器可以从存储媒介中读取信息，并可以向存储媒介存写信息。可选地，存储媒介还可以集成到处理器中。处理器和存储媒介可以设置于ASIC中，ASIC可以设置于终端设备中。可选地，处理器和存储媒介也可以设置于终端设备中的不同的部件中。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管结合具体特征及其实施例对本发明进行了描述，显而易见的，在不脱离本发明的精神和范围的情况下，可对其进行各种修改和组合。相应地，本说明书和附图仅仅是所附权利要求所界定的本发明的示例性说明，且视为已覆盖本发明范围内的任意和所有修改、变化、组合或等同物。显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (30)

  1. 一种通信方法，其特征在于，包括：
    终端设备接收来自网络设备的时间提前量；
    所述终端设备根据所述时间提前量，重新设置预配置的上行资源的有效时长。
  2. 一种通信方法，其特征在于，包括：
    终端设备接收来自网络设备的第一消息，所述第一消息包括时间提前量和第一指示信息，所述第一指示信息用于指示释放预配置的上行资源；
    所述终端设备释放所述预配置的上行资源。
  3. 如权利要求1所述的方法，其特征在于，所述重新设置预配置的上行资源的有效时长，包括：
    所述终端设备重启定时器，所述定时器超时之前所述预配置的上行资源有效。
  4. 如权利要求1所述的方法，其特征在于，所述重新设置预配置的上行资源的有效时长，包括：
    所述终端设备根据所述时间提前量的接收时刻，确定第一时长的起始时刻，所述第一时长内所述预配置的上行资源有效。
  5. 如权利要求2所述的方法，其特征在于，所述终端设备接收来自网络设备的第一消息之后，所述方法还包括：
    所述终端设备向所述网络设备发送第二消息，所述第二消息用于确认所述第一消息。
  6. 如权利要求1至5任一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备向所述网络设备发送前导序列。
  7. 如权利要求1至6任一项所述的方法，其特征在于，所述终端设备为处于空闲态的终端设备。
  8. 一种通信方法，其特征在于，包括：
    网络设备向终端设备发送时间提前量；
    所述网络设备根据所述时间提前量，重新设置预配置的上行资源的有效时长。
  9. 一种通信方法，其特征在于，包括：
    网络设备向终端设备发送第一消息，所述第一消息包括时间提前量和第一指示信息，所述第一指示信息用于指示释放预配置的上行资源；
    所述网络设备释放所述预配置的上行资源。
  10. 如权利要求8所述的方法，其特征在于，所述重新设置预配置的上行资源的有效时长，包括：
    所述网络设备重启定时器，所述定时器超时之前所述预配置的上行资源有效。
  11. 如权利要求8所述的方法，其特征在于，所述重新设置预配置的上行资源的有效时长，包括：
    所述网络设备根据所述时间提前量的发送时刻，确定第一时长的起始时刻，所述第一时长内所述预配置的上行资源有效。
  12. 如权利要求9所述的方法，其特征在于，所述网络设备释放所述预配置的上行资源之前，所述方法还包括：
    所述网络设备接收来自所述终端设备的第二消息，所述第二消息用于确认所述第一消 息。
  13. 如权利要求8至12任一项所述的方法，其特征在于，所述方法还包括：
    所述网络设备接收来自所述终端设备的前导序列。
  14. 如权利要求8至13任一项所述的方法，其特征在于，所述终端设备为处于空闲态的终端设备。
  15. 一种通信装置，其特征在于，包括：
    收发单元，用于接收来自网络设备的时间提前量；
    处理单元，用于根据所述时间提前量，重新设置预配置的上行资源的有效时长。
  16. 一种通信装置，其特征在于，包括：
    收发单元，用于接收来自网络设备的第一消息，所述第一消息包括时间提前量和第一指示信息，所述第一指示信息用于指示释放预配置的上行资源；
    处理单元，用于释放所述预配置的上行资源。
  17. 如权利要求15所述的装置，其特征在于，所述处理单元具体用于：
    重启定时器，所述定时器超时之前所述预配置的上行资源有效。
  18. 如权利要求15所述的装置，其特征在于，所述处理单元具体用于：
    根据所述时间提前量的接收时刻，确定第一时长的起始时刻，所述第一时长内所述预配置的上行资源有效。
  19. 如权利要求16所述的装置，其特征在于，所述收发单元还用于：
    在接收来自所述网络设备的第一消息之后，向所述网络设备发送第二消息，所述第二消息用于确认所述第一消息。
  20. 如权利要求15至19任一项所述的装置，其特征在于，所述收发单元还用于：
    向所述网络设备发送前导序列。
  21. 如权利要求15至20任一项所述的装置，其特征在于，所述通信装置为处于空闲态的终端设备。
  22. 一种通信装置，其特征在于，包括：
    收发单元，用于向终端设备发送时间提前量；
    处理单元，用于根据所述时间提前量，重新设置预配置的上行资源的有效时长。
  23. 一种通信装置，其特征在于，包括：
    收发单元，用于向终端设备发送第一消息，所述第一消息包括时间提前量和第一指示信息，所述第一指示信息用于指示释放预配置的上行资源；
    处理单元，用于释放所述预配置的上行资源。
  24. 如权利要求22所述的装置，其特征在于，所述处理单元具体用于：
    重启定时器，所述定时器超时之前所述预配置的上行资源有效。
  25. 如权利要求22所述的装置，其特征在于，所述处理单元具体用于：
    根据所述时间提前量的发送时刻，确定第一时长的起始时刻，所述第一时长内所述预配置的上行资源有效。
  26. 如权利要求23所述的装置，其特征在于，所述收发单元还用于：
    在所述处理单元释放所述预配置的上行资源之前，接收来自所述终端设备的第二消息，所述第二消息用于确认所述第一消息。
  27. 如权利要求22至26任一项所述的装置，其特征在于，所述收发单元还用于：
    接收来自所述终端设备的前导序列。
  28. 如权利要求22至27任一项所述的装置，其特征在于，所述终端设备为处于空闲态的终端设备。
  29. 一种计算机可读存储介质，其特征在于，包括指令，当所述指令被运行时，使得如权利要求1-14任一项所述的方法被执行。
  30. 一种通信系统，其特征在于，包括如权利要求15-21任一项所述的通信装置和如权利要求22-28任一项所述的通信装置。
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