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WO2018201338A1 - 通信方法和设备 - Google Patents

通信方法和设备 Download PDF

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Publication number
WO2018201338A1
WO2018201338A1 PCT/CN2017/082890 CN2017082890W WO2018201338A1 WO 2018201338 A1 WO2018201338 A1 WO 2018201338A1 CN 2017082890 W CN2017082890 W CN 2017082890W WO 2018201338 A1 WO2018201338 A1 WO 2018201338A1
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WO
WIPO (PCT)
Prior art keywords
communication
length
uplink
downlink
time slot
Prior art date
Application number
PCT/CN2017/082890
Other languages
English (en)
French (fr)
Inventor
焦淑蓉
花梦
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2017/082890 priority Critical patent/WO2018201338A1/zh
Priority to CN201780067631.7A priority patent/CN109891844B/zh
Publication of WO2018201338A1 publication Critical patent/WO2018201338A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes

Definitions

  • the embodiments of the present application relate to the field of communications technologies, and in particular, to a communication method and device.
  • a new Radio Access Network for example, a basic scheduling unit of an access network of 5G (fifth generation) communication is a slot, and each slot includes a plurality of OFDM (orthogonal frequency) Sub-multiplexed) symbol.
  • the transmission format of each slot includes the length of time of DL (downlink), the length of time of UL (upstream), and the length of time of Guard Period (GP).
  • the network device sends control information to multiple terminals (belonging to the same group or belonging to the same cell) in the foremost symbol or higher layer signaling of each slot to notify the time of the DL transmission in the current slot, UL.
  • the time of transmission and the time of the GP is a basic scheduling unit of an access network of 5G (fifth generation) communication.
  • the network device determines the length of a GP part as large as possible for all UEs in the same group or in the same cell, and the length of the GP part is the length of the GP part of all UEs.
  • the length of the GP part may not be suitable. For example, if the GP part is too large, it will cause waste of resources. Therefore, how to properly design the transmission format in the slot becomes a problem.
  • the embodiment of the present application provides a communication method and device for improving resource utilization efficiency.
  • the embodiment of the present application provides a communication method, including: determining, according to a communication status between a network device and a terminal, a length of a GP in a time slot, where the time slot includes: a downlink communication time period, a GP, and an uplink communication time period. Wherein the length of the GP is variable and the GP is used to isolate the downlink communication time period and the uplink communication time period.
  • the wireless communication is performed within a time slot, and the wireless communication includes performing downlink communication in a downlink communication time period and performing uplink communication in an uplink communication time period.
  • the communication status includes at least one of the following: an uplink and downlink handover capability of the terminal, a data block size of the downlink communication, and a timing relationship between the downlink communication and the uplink communication.
  • the length of the time slot is the first constant.
  • the length of the downlink communication period decreases as the length of the GP increases or increases as the length of the GP decreases.
  • the sum of the length of the downlink communication period and the length of the GP is the second constant.
  • the length of the upstream communication period decreases as the length of the GP increases or increases as the length of the GP decreases.
  • the sum of the length of the upstream communication period and the length of the GP is the third constant.
  • the communication conditions include uplink and downlink handover capabilities.
  • the method further includes: receiving uplink and downlink handover capability reported by the terminal, or reporting uplink and downlink handover capability to the network device.
  • the uplink and downlink handover capability indicates the time required for uplink and downlink handover; the length of the GP decreases as the time required for uplink and downlink handover increases or decreases as the time required for uplink and downlink handover decreases.
  • the communication status includes a data block size
  • the downlink communication includes downlink data block communication
  • the uplink communication includes acknowledgement information for downlink data block communication.
  • the length of the GP when the data block size is greater than the preset communication block threshold, the length of the GP is determined to be the first length.
  • the data block size is less than or equal to the preset communication block threshold, it is determined that the length of the GP is the second length.
  • the first length is greater than the second length.
  • the method further comprises: transmitting or receiving an indication message indicating a data block size to the terminal.
  • the timing relationship indicates the interval length of the uplink communication from the downlink communication; wherein the length of the GP decreases as the interval duration increases or increases as the interval duration decreases.
  • the length of the GP when the interval duration is less than the preset timing relationship threshold, the length of the GP is determined to be the first length.
  • the interval duration is greater than or equal to the timing relationship threshold, it is determined that the length of the GP is the second length.
  • the first length is greater than the second length.
  • the timing relationship indicates whether both the uplink communication and the downlink communication are included in the time slot.
  • the length of the GP is determined to be the first length.
  • the length of the GP is determined to be the second length. The first length is greater than the second length.
  • the downlink communication includes downlink data block communication
  • the uplink communication includes acknowledgement information for downlink data block communication
  • the length of the time slot is the first constant, and the sum of the length of the downlink communication period and the length of the GP is the second constant.
  • Performing the wireless communication within the time slot further includes transmitting, to the terminal, or receiving, from the network device, downlink information unrelated to the acknowledgment information, within a preset time period initiated within the GP.
  • the length of the time slot is the first constant, and the sum of the length of the upstream communication time period and the length of the GP is the third constant.
  • Performing the wireless communication in the time slot further includes: transmitting, to the network device, or receiving, from the terminal, uplink information other than the acknowledgement information at a preset time period at the end of the GP.
  • the downlink communication includes an uplink grant
  • the uplink communication includes uplink data
  • the length of the time slot is the first constant, and the sum of the length of the downlink communication period and the length of the GP is the second constant.
  • Performing the wireless communication in the time slot further includes: transmitting, to the terminal, or receiving, from the network device, downlink information that does not affect the uplink data communication, within a preset time period initiated within the GP.
  • the length of the time slot is the first constant, and the sum of the length of the upstream communication time period and the length of the GP is the third constant.
  • Performing the wireless communication in the time slot further includes: transmitting, to the network device, or receiving, from the terminal, uplink information that does not affect the uplink data communication at a preset time period at the end of the GP.
  • the method further includes: sending an indication message indicating the timing relationship to the terminal or from the network device.
  • the embodiment of the present application provides a communications device, including:
  • a processor configured to determine a length of the GP in the time slot according to a communication condition between the network device and the terminal, where the time slot includes: a downlink communication time period, a GP, and an uplink communication time period, wherein the length of the GP is variable and the GP is used The downlink communication time period and the uplink communication time period are isolated.
  • the transceiver is configured to perform wireless communication in a time slot, and the wireless communication includes: performing downlink communication in a downlink communication time period, and performing uplink communication in an uplink communication time period.
  • the communication status includes at least one of the following: uplink and downlink handover capability of the terminal, data block size of the downlink communication, and downlink The timing relationship between communication and upstream communication.
  • the length of the time slot is the first constant.
  • the length of the downlink communication period decreases as the length of the GP increases or increases as the length of the GP decreases.
  • the sum of the length of the downlink communication period and the length of the GP is the second constant.
  • the length of the upstream communication period decreases as the length of the GP increases or increases as the length of the GP decreases.
  • the sum of the length of the upstream communication period and the length of the GP is the third constant.
  • the communication conditions include uplink and downlink handover capabilities.
  • the transceiver is further configured to receive the uplink and downlink handover capability reported by the terminal, or report the uplink and downlink handover capability to the network device.
  • the uplink and downlink handover capability indicates the time required for uplink and downlink handover; the length of the GP decreases as the time required for uplink and downlink handover increases or decreases as the time required for uplink and downlink handover decreases.
  • the communication status includes a data block size
  • the downlink communication includes downlink data block communication
  • the uplink communication includes acknowledgement information for downlink data block communication.
  • the length of the GP decreases as the data block size increases or increases as the data block size decreases.
  • the length of the GP when the data block size is greater than the preset communication block threshold, the length of the GP is determined to be the first length.
  • the data block size is less than or equal to the preset communication block threshold, it is determined that the length of the GP is the second length.
  • the first length is greater than the second length.
  • the timing relationship indicates the length of the interval between the upstream communication and the downstream communication. Wherein, the length of the GP decreases as the interval length increases or increases as the interval length decreases.
  • the length of the GP when the interval duration is less than the preset timing relationship threshold, the length of the GP is determined to be the first length.
  • the interval duration is greater than or equal to the timing relationship threshold, it is determined that the length of the GP is the second length.
  • the first length is greater than the second length.
  • the timing relationship indicates whether both the uplink communication and the downlink communication are included in the time slot.
  • the length of the GP is determined to be the first length.
  • the length of the GP is determined to be the second length. The first length is greater than the second length.
  • the downlink communication includes downlink data block communication
  • the uplink communication includes acknowledgement information for downlink data block communication
  • the length of the time slot is the first constant, and the sum of the length of the downlink communication period and the length of the GP is the second constant.
  • the transceiver is further configured to send downlink information that is not related to the acknowledgement information to the terminal in a preset time period initiated in the GP, or receive downlink information that is not related to the acknowledgement information from the network device.
  • the length of the time slot is the first constant, and the sum of the length of the upstream communication time period and the length of the GP is the third constant.
  • the transceiver is further configured to send uplink information except the acknowledgement information to the network device at a preset time period at the end of the GP, or receive uplink information other than the acknowledgement information from the terminal.
  • the downlink communication includes an uplink grant
  • the uplink communication includes uplink data
  • the length of the time slot is the first constant, and the sum of the length of the downlink communication period and the length of the GP is the second constant.
  • the transceiver is further configured to send downlink information that does not affect the uplink data communication to the terminal in a preset time period initiated in the GP, or receive downlink information that does not affect the uplink data communication from the network device.
  • the length of the time slot is the first constant
  • the sum of the length of the upstream communication time period and the length of the GP is the third constant.
  • the transceiver is further configured to send uplink information that does not affect the uplink data communication to the network device in a preset time period at the end of the GP, or receive uplink information that does not affect the uplink data communication from the terminal.
  • an embodiment of the present application provides a communications device, including:
  • a processing module configured to determine a length of the GP in the time slot according to a communication status between the network device and the terminal, where the time slot includes: a downlink communication time period, a GP, and an uplink communication time period, where the length of the GP is variable and the GP is used The downlink communication time period and the uplink communication time period are isolated.
  • the sending module is configured to perform downlink communication in a downlink communication time period in the time slot.
  • a receiving module configured to perform uplink communication in an uplink communication time period in the time slot.
  • the receiving module is configured to perform downlink communication in a downlink communication time period in the time slot.
  • a sending module configured to perform uplink communication in an uplink communication time period in the time slot.
  • the communication status includes at least one of the following: an uplink and downlink handover capability of the terminal, a data block size of the downlink communication, and a timing relationship between the downlink communication and the uplink communication.
  • the length of the time slot is the first constant.
  • the length of the downlink communication period decreases as the length of the GP increases or increases as the length of the GP decreases.
  • the sum of the length of the downlink communication period and the length of the GP is the second constant.
  • the length of the upstream communication period decreases as the length of the GP increases or increases as the length of the GP decreases.
  • the sum of the length of the upstream communication period and the length of the GP is the third constant.
  • the communication conditions include uplink and downlink handover capabilities.
  • the receiving module is further configured to receive the uplink and downlink switching capability reported by the terminal.
  • the sending module is further configured to report the uplink and downlink switching capability to the network device.
  • the uplink and downlink handover capability indicates the time required for uplink and downlink handover; the length of the GP decreases as the time required for uplink and downlink handover increases or decreases as the time required for uplink and downlink handover decreases.
  • the communication status includes a data block size
  • the downlink communication includes downlink data block communication
  • the uplink communication includes acknowledgement information for downlink data block communication.
  • the length of the GP decreases as the data block size increases or increases as the data block size decreases.
  • the length of the GP when the data block size is greater than the preset communication block threshold, the length of the GP is determined to be the first length.
  • the data block size is less than or equal to the preset communication block threshold, it is determined that the length of the GP is the second length.
  • the first length is greater than the second length.
  • the sending module is further configured to send an indication message indicating the data block size to the terminal.
  • the receiving module is further configured to receive, from the network device, an indication message indicating a data block size.
  • the timing relationship indicates the length of the interval between the upstream communication and the downstream communication. Wherein, the length of the GP decreases as the interval length increases or increases as the interval length decreases.
  • the length of the GP when the interval duration is less than the preset timing relationship threshold, the length of the GP is determined to be the first length.
  • the interval duration is greater than or equal to the timing relationship threshold, it is determined that the length of the GP is the second length.
  • the first length is greater than the second length.
  • the timing relationship indicates whether both the uplink communication and the downlink communication are included in the time slot.
  • the length of the GP is determined to be the first length.
  • the length of the GP is determined to be the second length. The first length is greater than the second length.
  • the downlink communication includes downlink data block communication
  • the uplink communication includes acknowledgement information for downlink data block communication
  • the length of the time slot is the first constant, and the sum of the length of the downlink communication period and the length of the GP is the second constant.
  • the sending module is further configured to send, to the terminal, downlink information that is not related to the confirmation information, in a preset time period initiated within the GP.
  • the receiving module is further configured to receive, from the network device, downlink information that is not related to the acknowledgement information, in a preset time period initiated within the GP.
  • the length of the time slot is the first constant
  • the sum of the length of the upstream communication time period and the length of the GP is the third constant.
  • the sending module is further configured to send, to the network device, uplink information except the confirmation information at a preset time period at the end of the GP.
  • the receiving module is further configured to receive uplink information except the confirmation information from the terminal at a preset time period at the end of the GP.
  • the downlink communication includes an uplink grant
  • the uplink communication includes uplink data
  • the length of the time slot is the first constant, and the sum of the length of the downlink communication period and the length of the GP is the second constant.
  • the sending module is further configured to send downlink information that does not affect the uplink data communication to the terminal in a preset time period initiated in the GP.
  • the receiving module is further configured to receive, from the network device, downlink information that does not affect the uplink data communication, in a preset time period initiated within the GP.
  • the length of the time slot is the first constant
  • the sum of the length of the uplink communication time period and the length of the GP is the third constant
  • the transmitting module is also used in the GP.
  • uplink information that does not affect uplink data communication is sent to the network device.
  • the receiving module is further configured to receive uplink information that does not affect uplink data communication from the terminal at a preset time period at the end of the GP.
  • the sending module is further configured to send an indication message indicating the timing relationship to the terminal.
  • the receiving module is further configured to receive, from the network device, an indication message indicating a timing relationship.
  • an embodiment of the present application provides a computer readable storage medium, which enables a communication device to perform any of the foregoing communication methods when the instructions in the storage medium are executed by a processor of the communication device.
  • the communication method and device determine the length of the GP in the time slot according to the communication status between the network device and the terminal, and then perform wireless communication in the time slot, because the length of the GP is flexible. It avoids the waste of resources and improves the efficiency of resource utilization.
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application.
  • FIG. 2 is a flowchart of a communication method provided by Embodiment 1 of the present application.
  • FIG. 3 is a schematic diagram of a time slot provided by an embodiment of the present application.
  • FIG. 4 is a flowchart of a communication method according to Embodiment 2 of the present application.
  • FIG. 5 is a flowchart of a communication method according to Embodiment 3 of the present application.
  • FIG. 6 is a flowchart of a communication method provided in Embodiment 4 of the present application.
  • FIG. 7 is a schematic diagram of a timing relationship between a downlink data block and an ACK or a NACK according to an embodiment of the present disclosure.
  • FIG. 8 is a flowchart of a communication method according to Embodiment 5 of the present application.
  • FIG. 9 is a schematic diagram of timing relationship between UL GRANT and uplink data according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a communication device according to Embodiment 1 of the present application.
  • FIG. 11 is a schematic structural diagram of a communication device according to Embodiment 2 of the present application.
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present disclosure.
  • a communication system includes a network device and at least one terminal, and the network device and the at least one terminal are implemented by using the technical solutions provided in the following embodiments of the present application. Communication.
  • Radio Access Network Also known as a Radio Access Network (RAN) device, it is a device that connects a terminal to a wireless network, and can be a Global System of Mobile communication (GSM) or a code division.
  • Base Transceiver Station (BTS) in Code Division Multiple Access (CDMA) which may also be a base station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), or may be An evolved base station (Evolutional Node B, eNB or eNodeB) in a Long Term Evolution (LTE), or a relay station or an access point, or a base station in a 5G network, is not limited herein.
  • GSM Global System of Mobile communication
  • BTS Base Transceiver Station
  • CDMA Code Division Multiple Access
  • NodeB, NB base station
  • WCDMA Wideband Code Division Multiple Access
  • the wireless terminal can be a wireless terminal or a wired terminal.
  • the wireless terminal can be a device that provides voice and/or other service data connectivity to the user, a handheld device with wireless connectivity, or other processing device connected to the wireless modem.
  • the wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal.
  • RAN Radio Access Network
  • it may be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and/or data with a wireless access network.
  • the wireless terminal may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, and a remote terminal.
  • the access terminal, the user terminal (User Terminal), the user agent (User Agent), and the user device (User Device or User Equipment) are not limited herein.
  • Embodiment 1 of the present application is a flowchart of a communication method provided by Embodiment 1 of the present application. As shown in FIG. 2, the method in this embodiment may include:
  • the time slot in this embodiment includes a downlink communication time period, a GP, and an uplink communication time period.
  • the GP is located between a downlink communication time period and an uplink communication time period, and the GP is used to isolate the downlink communication.
  • Time period and uplink communication time period are not fixed but variable.
  • each time slot includes a plurality of OFDM symbols, for example, 7 OFDM symbols.
  • the downlink communication time period can be in the time slot
  • the X OFDM symbols, the GP may be the Y OFDM symbols in the time slot, and the uplink communication time period may be the Z OFDM symbols in the time slot.
  • X, Y, and Z are integers greater than 0.
  • the length of the downlink communication period can be represented by the number of symbols X
  • the length of the GP can be represented by the number Y of symbols
  • the length of the uplink communication period can be represented by the number of symbols Z.
  • the length of the GP in this embodiment is variable, that is, the above Y is changed, and the length of the GP may be affected by the communication status between the network device and the terminal. Therefore, the embodiment may be based on the network device and the terminal.
  • the communication status between the two determines the length of the GP.
  • the communication status between the network device and the terminal directly corresponds to the length of the GP.
  • the length of the standard GP is preset.
  • the length change value of the GP is determined according to the communication status between the network device and the terminal, and then the length of the GP is determined according to the length of the standard GP and the length change value of the GP, such as GP.
  • the length is equal to the sum of the length of the standard GP and the length change of the GP.
  • the length change value can be a delta value.
  • the communication status between the network device and the terminal includes at least one of the following: an uplink and downlink handover capability of the terminal, a data block size of the downlink communication, and a timing relationship between the downlink communication and the uplink communication.
  • the length of the GP of the time slot in this embodiment is equal to the length of the GP determined in the above S101.
  • the wireless communication includes performing downlink communication in the downlink communication time period and performing uplink communication in the uplink communication time period.
  • the execution body of this embodiment may be a network device or a terminal.
  • the implementation process of S102 is: the network device performs downlink transmission to the terminal in a downlink communication time period of the time slot, and performs uplink reception on the terminal in an uplink communication time period of the time slot.
  • the implementation process of S102 is: the terminal performs uplink transmission on the network device in the uplink communication time period of the time slot, and performs downlink reception on the network device in the downlink communication time period of the time slot.
  • the length of the GP used to isolate the downlink communication time period and the uplink communication time period in the time slot is variable.
  • the GP in the time slot is determined according to the communication status between the network device and the terminal. The length is then performed in the time slot to perform wireless communication, which avoids the waste of resources and improves resource utilization efficiency.
  • the length of the time slot is a first constant or varies according to a change of a parameter such as a carrier interval, a Cyclic Prefix (CP) length, and the like, and the first constant is a configurable constant.
  • the first constant is a fixed value.
  • the first constant is equal to the sum of the above X, the above Y, and the above Z.
  • the length of the downlink communication period decreases as the length of the GP increases, or the length of the downlink communication period increases as the length of the GP decreases.
  • the sum of the length of the downlink communication period and the length of the GP is a second constant.
  • the length reduction amount of the downlink communication period is equal to the increase amount of the length of the GP, or the length increase amount of the downlink communication period is equal to the reduction amount of the GP.
  • the length of the GP is Y1
  • the length of the downlink communication period is X1
  • X1+Y1 the second constant.
  • the length of the uplink communication period decreases as the length of the GP increases, or the length of the uplink communication period increases as the length of the GP decreases.
  • the sum of the length of the uplink communication period and the length of the GP is a third constant.
  • the length reduction of the uplink communication period is equal to the increase of the length of the GP, and the length increase of the uplink communication period is equal to the reduction of the GP.
  • the length of the GP is Y1
  • the length of the uplink communication period is Z1
  • Z1+Y1 the third constant.
  • the method in this embodiment uses a network.
  • the communication status between the network device and the terminal includes the uplink and downlink switching capability, which may include:
  • S201 The terminal reports the uplink and downlink handover capability to the network device.
  • the radio frequency device of the terminal takes a certain time for the radio frequency device of the terminal to switch from the downlink receiving state to the uplink transmitting state, and the uplink and downlink switching capabilities of different radio frequency devices are different.
  • the RF devices used are also diverse, which means that they will have different uplink and downlink switching capabilities. .
  • the length of the GP in this embodiment may be related to the uplink and downlink switching capability of the terminal. Therefore, the terminal reports the uplink and downlink handover capability to the network device, and accordingly, the network device receives the uplink and downlink handover capability reported by the terminal.
  • the category number of the uplink and downlink handover capability of the terminal may be sent to the network device when the terminal accesses the network.
  • the network device receives the category number, and determines the uplink and downlink handover capability of the terminal according to the category number.
  • the network device determines the length of the GP in the time slot according to the uplink and downlink handover capability of the terminal.
  • the terminal determines the length of the GP in the time slot according to the uplink and downlink handover capability of the terminal.
  • the uplink/downlink switching capability of the terminal indicates the time required for the uplink and downlink handover, and the length of the GP decreases as the time required for the uplink and downlink handover increases, or the length of the GP increases as the time required for the uplink and downlink handover decreases.
  • the length of the GP in the time slot determined in this embodiment is Y1 when the uplink and downlink handover capability of the terminal indicates that the time required for the uplink and downlink handover is T1.
  • the length of the GP in the time slot determined in this embodiment is Y2. If T1 is greater than T2, Y1 is less than Y2. If T1 is less than T2, Y1 is greater than Y2.
  • the network device and the terminal perform wireless communication in the time slot.
  • the length of the GP used to isolate the downlink communication period and the uplink communication period is variable.
  • the length of the GP in the slot is determined according to the uplink and downlink handover capability of the terminal. Then, wireless communication is performed in the time slot, which avoids the waste of resources and improves resource utilization efficiency.
  • FIG. 5 is a flowchart of a communication method according to Embodiment 3 of the present application.
  • the method in this embodiment uses a data block size of a downlink communication as an example, and the following is a downlink.
  • the data block size of the communication is simply referred to as the downlink data block size.
  • the method in this embodiment may include:
  • the network device sends an indication message indicating a downlink data block size to the terminal.
  • the terminal may receive an indication message indicating the size of the downlink data block sent by the network device, and determine the downlink data block according to the indication message, before determining the length of the GP in the time slot according to the size of the downlink data block. the size of.
  • the network device determines, according to the size of the downlink data block, a length of the GP in the time slot.
  • the terminal determines, according to the size of the downlink data block, a length of the GP in the time slot.
  • the GP in the time slot in this embodiment is used to isolate the uplink communication time period in the time slot and the uplink communication in the time slot.
  • the downlink communication in the time slot includes downlink data block communication
  • the uplink communication in the time slot includes acknowledgement information of downlink data block communication.
  • the acknowledgment information may be HARQ (Hybrid Automatic Repeat Request) information, for example, ACK, indicating that the downlink data block is successfully received; the acknowledgment information is, for example, NACK, indicating that the downlink data block is not received. Due to the down
  • the block size affects the speed at which the terminal decodes, thereby affecting the time at which the terminal sends ACK or NACK of the downlink block. Therefore, the network device and the terminal determine the length of the GP in the time slot according to the downlink data block size.
  • the length of the GP decreases as the size of the downlink data block increases, or the length of the GP increases as the downlink data block decreases.
  • the length of the GP in the time slot determined in this embodiment is Y1.
  • the length of the GP in the time slot determined in this embodiment is Y2. If B1 is greater than B2, Y1 is less than Y2. If B1 is less than B2, Y1 is greater than Y2.
  • the value of the GP is determined by using a value between the first length and the second length.
  • the terminal or the network device in this embodiment determines whether the downlink data block size is greater than a preset communication block threshold, where the preset pass block
  • the threshold may be pre-defined or may be sent by the network to the terminal through high-layer signaling, such as RRC (Radio Resource Control) signaling.
  • the preset communication block threshold determines that the length of the GP is the first length; when determining that the downlink data block size is less than or equal to (or: less than) the preset communication block threshold Determining that the length of the GP is a second length; wherein the first length is greater than the second length.
  • the length of the GP may be set between multiple length values, and the embodiment is not limited to the above two length values. For example, if the value is set between three length values, the embodiment may compare the downlink data block size with the first preset communication block threshold and the second preset communication block threshold.
  • the network device sends the downlink data block to the terminal in a downlink communication time period of the time slot.
  • the terminal receives the downlink data block sent by the network device in the downlink communication time period of the time slot.
  • the terminal sends an ACK or a NACK to the network device in an uplink communication period of the time slot.
  • the network device receives the ACK or NACK sent by the terminal during the uplink communication period of the time slot.
  • the terminal If the terminal successfully receives the downlink data block, the terminal sends an ACK. If the terminal does not receive the downlink data block, the terminal sends a NACK.
  • the network device and the terminal are neither transmitted nor received within the GP, ie, after performing S304 and before S305.
  • the network device can transmit to the terminal within the GP.
  • the length of the time slot is a first constant, and the sum of the length of the downlink communication time period and the length of the GP is a second constant; after the execution of S304, the network device can also start a preset time period within the GP (one Transmitting, by the OFDM symbol, the downlink information that is not related to the ACK or the NACK, and correspondingly, the terminal receives the downlink information sent by the network device, for example, the channel state information-reference signal (Channel State) Information, Reference Signal, CSI-RS) or redundant transmission of this downlink data block transmission.
  • the channel state information-reference signal Channel State Information-reference signal
  • Reference Signal CSI-RS
  • the terminal can transmit to the network device within the GP.
  • the length of the time slot is a first constant, and the sum of the length of the uplink communication time period and the length of the GP is a third constant; the terminal may also be at a preset time period at the end of the GP before performing S305 (one or Transmitting, by the network device, the uplink information except the ACK or the NACK, and correspondingly, the network device sends the uplink information, for example, a channel sounding reference signal (Sounding Reference Signal, SRS), in the preset time period. ), Up Demodulation Reference Signal (DMRS), etc.
  • SRS channel sounding reference signal
  • DMRS Up Demodulation Reference Signal
  • the length of the GP used to isolate the downlink communication time period and the uplink communication time period in the time slot is variable.
  • the length of the GP in the time slot is determined according to the downlink data block size, and then Network within the time slot The device sends a downlink data block to the terminal, and the terminal sends an ACK or a NACK to the network device, thereby avoiding waste of resources and improving resource utilization efficiency.
  • FIG. 6 is a flowchart of a communication method according to Embodiment 4 of the present application.
  • the method in this embodiment includes a communication status between a network device and a terminal, where the downlink communication and the uplink communication are between
  • the timing relationship can include:
  • the network device sends an indication message indicating a timing relationship to the terminal.
  • the terminal learns the timing relationship between the downlink communication and the uplink communication from the network device before determining the length of the GP according to the timing relationship between the downlink communication and the uplink communication.
  • the timing relationship may indicate whether the uplink communication and the downlink communication are all included in the same time slot, that is, a Self-contained mode.
  • the downlink communication includes downlink data block communication
  • the uplink communication includes the acknowledgement information of the downlink data block communication as an example, and the acknowledgement information may be an ACK, indicating that the terminal successfully receives the downlink data block; or the acknowledgement information may be a NACK, Indicates that the terminal has not successfully received the downlink data block.
  • the network device determines, according to whether the ACK or the NACK of the downlink data block and the downlink data block are included in the time slot, determining the length of the GP in the time slot.
  • the terminal determines, according to whether the downlink data block and the ACK or the NACK of the downlink data block are included in the time slot, the length of the GP in the time slot.
  • the network device and the terminal determine the length of the GP in the time slot according to whether the ACK or the NAC of the downlink data block and the downlink data block are both included in the same time slot. Specifically, the network device and the terminal are included in the same time slot according to the ACK or the NACK of the downlink data block and the downlink data block, determining that the length of the GP in the time slot is the first length, and according to the downlink data block and the downlink data block. The ACK or the NACK are not all included in the same time slot, and the length of the GP in the time slot is determined to be the second length, and the first length is greater than the second length.
  • the network device sends a downlink data block to the terminal in a downlink communication time period of the time slot.
  • the terminal receives the downlink data block sent by the network device in the downlink communication time period of the time slot.
  • the terminal sends an ACK or a NACK to the network device in an uplink communication time period of the time slot.
  • the network device receives the ACK or NACK sent by the terminal during the uplink communication period of the time slot.
  • the ACK or NACK sent by the terminal in S405 is the acknowledgement information of the downlink data block in S404. If the downlink data block and the ACK or the NACK of the downlink data block are not all included in the same time slot, where the adjacent time slots are respectively taken as an example, the ACK or NACK sent by the terminal in S405 is, for example, the previous time slot.
  • the acknowledgement information of the downlink data block, and the acknowledgement information of the downlink data block sent by the network device in S404 is an ACK or a NACK in the next slot.
  • the timing relationship between the downlink data block communication and the downlink data block communication is as shown in FIG. 7 .
  • the network device and the terminal are neither transmitted nor received within the GP, ie, after performing S404 and before S405.
  • the network device can transmit to the terminal within the GP.
  • the length of the time slot is a first constant, and the sum of the length of the downlink communication time period and the length of the GP is a second constant; after the execution of S404, the network device can also start a preset time period within the GP (a The downlink information that is not related to the ACK or the NACK is sent to the terminal, and the terminal receives the downlink information, such as the CSI-RS or the current downlink data block, sent by the network device, in the preset time period. Redundant transmission of transmissions, etc.
  • the terminal can transmit to the network device within the GP.
  • the length of the time slot is a first constant, and the sum of the length of the uplink communication period and the length of the GP is a third constant; the terminal may also be at a preset time period at the end of the GP before performing S405 (one or The plurality of OFDM symbols are sent to the network device for uplink information except the ACK or the NACK. Accordingly, the network device sends the uplink information, for example, SRS, DMRS, etc., by the receiving terminal in the preset time period.
  • the length of the GP used to isolate the downlink communication period and the uplink communication period in the time slot is variable.
  • whether the ACK or the NACK of the downlink data block and the downlink data block are time-interval The slot determines the length of the GP in the time slot, and then the network device sends the downlink data block to the terminal in the time slot, and the terminal sends an ACK or a NACK to the network device, thereby avoiding the waste of resources and improving resource utilization efficiency.
  • the timing relationship may be extended to indicate an interval length of an ACK or a NACK of the downlink data block from the downlink data block. Accordingly, the network device and the terminal determine the length of the GP in the time slot according to the interval duration. . Moreover, the length of the GP decreases as the interval duration increases, or the length of the GP increases as the interval length decreases.
  • the interval duration is L1
  • the length of the GP in the time slot determined in this embodiment is Y1.
  • the length of the GP in the time slot determined in this embodiment is Y2. If L1 is greater than L2, Y1 is less than Y2. If L1 is less than L2, Y1 is greater than Y2.
  • the network device and the terminal may be preset with a preset timing relationship threshold, or the network device may semi-statically send the preset timing relationship threshold to the terminal. Then, the terminal and the network device in the embodiment determine that the length of the GP is the first length according to the threshold of the preset timing relationship that is less than (or less than or equal to) the interval duration; or, the terminal and the network device are separated according to the interval duration.
  • the preset timing relationship threshold is greater than or equal to (or greater than), and the length of the GP is determined to be the second length.
  • the method in this embodiment includes a communication status between a network device and a terminal, where the downlink communication and the uplink communication are between
  • the timing relationship can include:
  • the network device sends an indication message indicating a timing relationship to the terminal.
  • the terminal learns the timing relationship between the downlink communication and the uplink communication from the network device before determining the length of the GP according to the timing relationship between the downlink communication and the uplink communication.
  • the timing relationship may indicate whether the downlink communication and the uplink communication are both included in the time slot as an example.
  • the uplink communication includes uplink data
  • the downlink communication includes an uplink authorization of the uplink data as an example.
  • the above uplink grant may be, for example, an uplink data scheduling grant (UL GRANT).
  • the network device determines, according to the uplink data and the UL GRANT of the uplink data, whether the length of the GP in the time slot is included in the time slot.
  • the terminal determines, according to the uplink data and the UL GRANT of the uplink data, whether the length of the GP in the time slot is included in the time slot.
  • the network device and the terminal determine the length of the GP in the time slot according to whether the uplink data and the UL GRANT of the uplink data are all included in the same time slot. Specifically, the network device and the terminal are included in the same time slot according to the uplink data and the UL GRANT of the uplink data block, determining that the length of the GP in the time slot is the first length, and the UL GRANT according to the uplink data and the uplink data is not All are included in the same time slot, and the length of the GP in the time slot is determined to be a second length, and the first length is greater than the second length.
  • the network device sends a UL GRANT to the terminal in a downlink communication time period of the time slot.
  • the terminal receives the UL GRANT sent by the network device during the downlink communication period of the time slot.
  • the terminal sends uplink data corresponding to the UL GRANT to the network device in an uplink communication time period of the time slot.
  • the network device receives the uplink data corresponding to the UL GRANT sent by the terminal in the uplink communication time period of the time slot.
  • the uplink data sent by the terminal in S505 is the uplink data corresponding to the UL GRANT in S504. If the uplink data and the UL GRANT of the uplink data are not all included in the same time slot, where the adjacent time slots are respectively taken as an example, the uplink data sent by the terminal in S505 is, for example, the UL GRANT corresponding to the previous time slot.
  • Uplink data, and the uplink grant sent by the network device in S504 is the UL GRANT of the uplink data in the next slot.
  • the timing relationship between the UL GRANT and the uplink data is as shown in FIG. 9.
  • the network device and the terminal are neither transmitted nor received within the GP, ie, after performing S504 and before S505.
  • the network device can transmit to the terminal within the GP.
  • the length of the time slot is a first constant, and the sum of the length of the downlink communication time period and the length of the GP is a second constant; after the S504 is executed, the network device can also start a preset time period within the GP (a The downlink information that does not affect the uplink data communication is sent to the terminal on the OFDM symbol, and the terminal receives the downlink information, such as a CSI-RS, sent by the network device, in the preset time period.
  • the terminal can transmit to the network device within the GP.
  • the length of the time slot is a first constant, and the sum of the length of the uplink communication time period and the length of the GP is a third constant; the terminal may also be at a preset time period at the end of the GP before performing S505 (one or The plurality of OFDM symbols are sent to the network device for uplink information that does not affect the uplink data communication.
  • the network device sends the uplink information, for example, SRS, DMRS, etc., by the receiving terminal in the preset time period.
  • the length of the GP used to isolate the downlink communication time period and the uplink communication time period in the time slot is variable. In this embodiment, whether the uplink data and the UL GRANT of the uplink data cross the time slot are determined. The length of the GP in the time slot, and then the network device sends the UL GRANT to the terminal in the time slot, and the terminal sends the uplink data to the network device, thereby avoiding the waste of resources and improving the resource utilization efficiency.
  • the timing relationship may be extended to indicate an interval length of the uplink data from the UL GRANT of the uplink data.
  • the network device and the terminal determine the length of the GP in the time slot according to the interval duration.
  • the length of the GP decreases as the interval duration increases, or the length of the GP increases as the interval length decreases.
  • the interval duration is L1
  • the length of the GP in the time slot determined in this embodiment is Y1.
  • the length of the GP in the time slot determined in this embodiment is Y2. If L1 is greater than L2, Y1 is less than Y2. If L1 is less than L2, Y1 is greater than Y2.
  • the network device and the terminal may be preset with a preset timing relationship threshold, or the network device may semi-statically send the preset timing relationship threshold to the terminal. Then, the terminal and the network device in the embodiment determine that the length of the GP is the first length according to the threshold of the preset timing relationship that is less than (or less than or equal to) the interval duration; or, the terminal and the network device respectively according to the interval duration
  • the preset timing relationship threshold is greater than or equal to (or greater than), and the length of the GP is determined to be the second length.
  • a standard length of a GP may be pre-configured in the network device and the terminal, and the length of the preset time period is equal to the difference between the length of the determined GP and the standard length of the GP.
  • FIG. 4 It should be noted that at least two embodiments of the embodiments shown in FIG. 4, FIG. 5, FIG. 6, and FIG. 8 may be combined.
  • FIG. 10 is a schematic structural diagram of a communication device according to Embodiment 1 of the present application.
  • the communication device in this embodiment may include: a processor 11 and a transceiver 12.
  • the processor 11 is communicatively coupled to the transceiver 12.
  • the transceiver 12 may include a necessary radio frequency communication device such as a mixer.
  • the processor 11 may include a central processing unit (CPU), a digital signal processor (DSP), a microcontroller (Microcontroller Unit (MCU), and an application specific integrated circuit (ASIC). Or at least one of a Field-Programmable Gate Array (FPGA).
  • CPU central processing unit
  • DSP digital signal processor
  • MCU microcontroller
  • ASIC application specific integrated circuit
  • FPGA Field-Programmable Gate Array
  • the processor 11 is configured to determine a length of the GP in the time slot according to the communication status between the network device and the terminal, where the time slot includes: a downlink communication time period, a GP, and an uplink communication time period, where the length of the GP is variable and the GP is used.
  • the downlink communication time period and the uplink communication time period are isolated.
  • the transceiver 12 is configured to perform wireless communication in a time slot.
  • the wireless communication includes: performing downlink communication in a downlink communication time period, and performing uplink communication in an uplink communication time period.
  • the communication status includes at least one of the following: an uplink and downlink handover capability of the terminal, a data block size of the downlink communication, and a timing relationship between the downlink communication and the uplink communication.
  • the length of the time slot is the first constant.
  • the length of the downlink communication period decreases as the length of the GP increases or increases as the length of the GP decreases.
  • the sum of the length of the downlink communication period and the length of the GP is a second constant.
  • the length of the upstream communication period decreases as the length of the GP increases or increases as the length of the GP decreases.
  • the sum of the length of the uplink communication period and the length of the GP is a third constant.
  • the communication status includes an uplink and downlink handover capability.
  • the transceiver 12 is further configured to receive an uplink and downlink handover capability reported by the terminal.
  • the transceiver 12 is further configured to report the uplink and downlink handover capability to the network device.
  • the uplink and downlink handover capability indicates a time required for the uplink and downlink handover; the length of the GP decreases as the time required for the uplink and downlink handover increases or decreases as the time required for the uplink and downlink handover decreases.
  • the communication status includes a data block size
  • the downlink communication includes downlink data block communication
  • the uplink communication includes acknowledgement information of downlink data block communication.
  • the length of the GP decreases as the data block size increases or increases as the data block size decreases.
  • the data block size when the data block size is greater than the preset communication block threshold, determining that the length of the GP is the first length.
  • the data block size is less than or equal to the preset communication block threshold, it is determined that the length of the GP is the second length.
  • the first length is greater than the second length.
  • the transceiver 12 is further configured to send an indication message indicating a data block size to the terminal.
  • the transceiver 12 is further configured to receive, from the network device, an indication message indicating a data block size.
  • the timing relationship indicates an interval duration of the uplink communication from the downlink communication.
  • the length of the GP decreases as the interval length increases or increases as the interval length decreases.
  • the interval duration when the interval duration is less than a preset timing relationship threshold, determining that the length of the GP is the first length.
  • the interval duration is greater than or equal to the timing relationship threshold, it is determined that the length of the GP is the second length.
  • the first length is greater than the second length.
  • the timing relationship indicates whether both the uplink communication and the downlink communication are included in the time slot.
  • the length of the GP is determined to be the first length.
  • the length of the GP is determined to be the second length. The first length is greater than the second length.
  • the downlink communication includes downlink data block communication
  • the uplink communication includes acknowledgement information of downlink data block communication
  • the length of the time slot is a first constant
  • the sum of the length of the downlink communication time period and the length of the GP is a second constant.
  • the transceiver 12 is further configured to send downlink information that is not related to the confirmation information to the terminal within a preset time period initiated within the GP.
  • the transceiver 12 is further configured to receive, from the network device, downlink information that is not related to the acknowledgement information, within a preset time period initiated within the GP.
  • the length of the time slot is a first constant
  • the sum of the length of the uplink communication time period and the length of the GP is a third constant.
  • the transceiver 12 is further configured to send, to the network device, uplink information other than the confirmation information in a preset time period at the end of the GP.
  • the transceiver 12 is further configured to receive uplink information except the confirmation information from the terminal at a preset time period at the end of the GP.
  • the downlink communication includes an uplink grant
  • the uplink communication includes uplink data
  • the length of the time slot is a first constant
  • the sum of the length of the downlink communication time period and the length of the GP is a second constant.
  • the transceiver 12 is further configured to send, to the terminal, downlink information that does not affect the uplink data communication, within a preset time period initiated within the GP.
  • the transceiver 12 is further configured to receive, from the network device, downlink information that does not affect the uplink data communication, within a preset time period initiated within the GP.
  • the length of the time slot is a first constant, and the sum of the length of the uplink communication time period and the length of the GP is a third constant; when the communication device is the terminal, the transceiver 12 is further used for the pre-end in the GP.
  • the uplink information that does not affect the uplink data communication is sent to the network device in the time period.
  • the transceiver 12 is further configured to receive, from the terminal, uplink information that does not affect the uplink data communication in a preset time period at the end of the GP.
  • the transceiver 12 is further configured to send an indication message indicating a timing relationship to the terminal.
  • the transceiver 12 is further configured to receive, from the network device, an indication message indicating a timing relationship.
  • the communication device of this embodiment further includes a memory 13 for storing program instructions, and the processor 11 is configured to call the program instructions in the memory 13 to execute the foregoing solution.
  • the program instructions may be implemented in the form of a software functional unit and can be sold or used as a standalone product, which may be any form of computer readable storage medium. Based on such understanding, all or part of the technical solutions of the present application may be embodied in the form of a software product, including a plurality of instructions for causing a computer device, specifically the processor 11, to perform the embodiments of the present application. All or part of the steps of the method.
  • the foregoing computer readable storage medium includes: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. The medium of the code.
  • the communication device described in this embodiment may be used to implement the technical solutions of the foregoing method embodiments of the present application, and the implementation principles and technical effects thereof are similar, and details are not described herein again.
  • FIG. 11 is a schematic structural diagram of a communication device according to Embodiment 2 of the present application.
  • the communication device in this embodiment may include: a processing module 21, a sending module 22, and a receiving module 23.
  • the processing module 21, the sending module 22, and the receiving module 23 can be hardware modules or software modules, or modules implemented by combining hardware and software.
  • the processing module 21 is configured to determine, according to a communication status between the network device and the terminal, a length of the GP in the time slot, where the time slot includes: a downlink communication time period, a GP, and an uplink communication time period, where the length of the GP is variable. And the GP is used to isolate the downlink communication time period and the uplink communication time period.
  • the sending module 22 is configured to perform downlink communication in a downlink communication time period in the time slot.
  • the receiving module 23 is configured to perform uplink communication in an uplink communication time period in the time slot.
  • the receiving module 23 is configured to perform downlink communication in a downlink communication time period in the time slot.
  • the sending module 22 is configured to perform uplink communication in an uplink communication time period in a time slot.
  • the communication status includes at least one of the following: an uplink and downlink handover capability of the terminal, a data block size of the downlink communication, and a timing relationship between the downlink communication and the uplink communication.
  • the length of the time slot is the first constant.
  • the length of the downlink communication period decreases as the length of the GP increases or increases as the length of the GP decreases.
  • the sum of the length of the downlink communication period and the length of the GP is a second constant.
  • the length of the upstream communication period decreases as the length of the GP increases or increases as the length of the GP decreases.
  • the sum of the length of the uplink communication period and the length of the GP is a third constant.
  • the communication status includes an uplink and downlink handover capability.
  • the receiving module 23 is further configured to receive the uplink and downlink switching capability reported by the terminal.
  • the sending module 22 is further configured to report the uplink and downlink switching capability to the network device.
  • the uplink and downlink handover capability indicates a time required for the uplink and downlink handover; the length of the GP decreases as the time required for the uplink and downlink handover increases or decreases as the time required for the uplink and downlink handover decreases.
  • the communication status includes a data block size
  • the downlink communication includes downlink data block communication
  • the uplink communication includes acknowledgement information of downlink data block communication.
  • the length of the GP decreases as the data block size increases or increases as the data block size decreases.
  • the data block size when the data block size is greater than the preset communication block threshold, determining that the length of the GP is the first length.
  • the data block size is less than or equal to the preset communication block threshold, it is determined that the length of the GP is the second length.
  • the first length is greater than the second length.
  • the sending module 22 is further configured to send an indication message indicating the data block size to the terminal; or, when the communication device is the terminal, the receiving module 23 is further configured to receive from the network device. An indication message indicating the size of the data block.
  • the timing relationship indicates an interval duration of the uplink communication from the downlink communication.
  • the length of the GP decreases as the interval length increases or increases as the interval length decreases.
  • the interval duration when the interval duration is less than a preset timing relationship threshold, determining that the length of the GP is the first length.
  • the interval duration is greater than or equal to the timing relationship threshold, it is determined that the length of the GP is the second length.
  • the first length is greater than the second length.
  • the timing relationship indicates whether both the uplink communication and the downlink communication are included in the time slot.
  • the length of the GP is determined to be the first length.
  • the length of the GP is determined to be the second length. The first length is greater than the second length.
  • the downlink communication includes downlink data block communication
  • the uplink communication includes acknowledgement information of downlink data block communication
  • the length of the time slot is a first constant
  • the sum of the length of the downlink communication time period and the length of the GP is a second constant.
  • the sending module 22 is further configured to send, to the terminal, downlink information that is not related to the confirmation information, in a preset time period initiated within the GP.
  • the receiving module 23 is further used to The network device receives downlink information that is not related to the acknowledgment information.
  • the length of the time slot is a first constant
  • the sum of the length of the uplink communication time period and the length of the GP is a third constant.
  • the sending module 22 is further configured to send, to the network device, uplink information except the acknowledgement information on a preset time period at the end of the GP.
  • the receiving module 23 is further configured to receive uplink information except the confirmation information from the terminal.
  • the downlink communication includes an uplink grant
  • the uplink communication includes uplink data
  • the length of the time slot is a first constant
  • the sum of the length of the downlink communication time period and the length of the GP is a second constant.
  • the sending module 22 is further configured to send downlink information that does not affect the uplink data communication to the terminal in a preset time period initiated within the GP.
  • the receiving module 23 is further configured to receive, from the network device, downlink information that does not affect uplink data communication.
  • the length of the time slot is a first constant, and the sum of the length of the uplink communication time period and the length of the GP is a third constant; when the communication device is a terminal, the sending module 22 is further used to pre-end at the end of the GP.
  • the uplink information that does not affect the uplink data communication is sent to the network device in the time period.
  • the receiving module 23 is further configured to receive, from the terminal, uplink information that does not affect uplink data communication.
  • the sending module 22 is further configured to send an indication message indicating a timing relationship to the terminal.
  • the receiving module 23 is further configured to receive, from the network device, an indication message indicating a timing relationship.
  • the communication device of this embodiment may be used to implement the technical solution of the foregoing method embodiments of the present application.
  • the implementation principle and technical effects are similar, and details are not described herein again.

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Abstract

本申请实施例提供一种通信方法和设备，此方法包括：根据网络设备与终端之间的通信状况，确定时隙中GP的长度，时隙包括：下行通信时间段、GP和上行通信时间段，其中GP的长度可变且所述GP用于隔离下行通信时间段和上行通信时间段。在时隙内执行无线通信，无线通信包括：在下行通信时间段执行下行通信，以及在上行通信时间段执行上行通信。其中，通信状况包括如下至少一项：终端的上下行切换能力、下行通信的数据块大小、下行通信与所述上行通信之间的定时关系。从而避免了资源浪费的现象，提高了资源利用效率。

Description

通信方法和设备 技术领域
本申请实施例涉及通信技术领域，尤其涉及一种通信方法和设备。
背景技术
新的无线接入网(New Radio Access Network，NR)，例如：5G(第五代)通信的接入网的基本调度单元为时隙(slot)，每个slot包括多个OFDM(正交频分复用)符号。每个slot的传输格式包括DL(下行)的时间长度、UL(上行)的时间长度和保护间隙(Guard Period，GP)的时间长度。为了保证调度的灵活性，网络设备在每个slot最前面的符号或者高层信令中向多个终端(属于同一组，或者属于同一小区)发送控制信息以通知当前slot中DL传输的时间、UL传输的时间和GP的时间。目前，网络设备针对同一组或者同一小区内的所有UE确定一个尽可能大的GP部分的长度，将该GP部分的长度为作所有UE的GP部分的长度。但是，对有些UE或者某些传输业务来说，该GP部分的长度可能不合适。例如，如果该GP部分过大，会造成资源的浪费。因此，如何合理设计slot内传输格式就成为一个问题。
发明内容
本申请实施例提供一种通信方法和设备，用于提高资源利用效率。
第一方面，本申请实施例提供一种通信方法，包括：根据网络设备与终端之间的通信状况，确定时隙中GP的长度，时隙包括：下行通信时间段、GP和上行通信时间段，其中GP的长度可变且GP用于隔离下行通信时间段和上行通信时间段。在时隙内执行无线通信，无线通信包括：在下行通信时间段执行下行通信，以及在上行通信时间段执行上行通信。其中，通信状况包括如下至少一项：终端的上下行切换能力、下行通信的数据块大小、下行通信与上行通信之间的定时关系。
在一种可能的设计中，时隙的长度是第一常数。
在一种可能的设计中，下行通信时间段的长度随GP的长度增加而减少或随GP的长度减少而增加。
在一种可能的设计中，下行通信时间段的长度与GP的长度之和是第二常数。
在一种可能的设计中，上行通信时间段的长度随GP的长度增加而减少或随GP的长度减少而增加。
在一种可能的设计中，上行通信时间段的长度与GP的长度之和是第三常数。
在一种可能的设计中，通信状况包括上下行切换能力。所述方法还包括：接收终端上报的上下行切换能力或向网络设备上报上下行切换能力。
在一种可能的设计中，上下行切换能力指示上下行切换所需时间；GP的长度随上下行切换所需时间的增加而减少或随上下行切换所需时间的减少而增加。
在一种可能的设计中，通信状况包括数据块大小，下行通信包括下行数据块通信，上行通信包括下行数据块通信的确认信息。其中，GP的长度随数据块大小的增加而减少或 随数据块大小的减少而增加。
在一种可能的设计中，当数据块大小大于预设通信块阈值时，确定GP的长度为第一长度。当数据块大小小于或等于预设通信块阈值时，确定GP的长度为第二长度。第一长度大于第二长度。
在一种可能的设计中，所述方法还包括：向终端发送或从网络设备接收指示数据块大小的指示消息。
在一种可能的设计中，定时关系指示上行通信距下行通信的间隔时长；其中，GP的长度随间隔时长增加而减少或随间隔时长减少而增加。
在一种可能的设计中，当间隔时长小于预设定时关系阈值时，确定GP的长度为第一长度。当间隔时长大于或等于定时关系阈值时，确定GP的长度为第二长度。第一长度大于第二长度。
在一种可能的设计中，定时关系指示上行通信和下行通信是否均包括在时隙内。当定时关系指示上行通信和下行通信均包括在时隙内，确定GP的长度为第一长度。当定时关系指示上行通信和下行通信并未均包括在时隙内，确定GP的长度为第二长度。第一长度大于第二长度。
在一种可能的设计中，下行通信包括下行数据块通信，上行通信包括下行数据块通信的确认信息。
在一种可能的设计中，时隙的长度是第一常数，下行通信时间段的长度与GP的长度之和是第二常数。在时隙内执行无线通信还包括：在GP内起始的预设时间段上向终端发送或从网络设备接收与确认信息无关的下行信息。
在一种可能的设计中，时隙的长度是第一常数，上行通信时间段的长度与GP的长度之和是第三常数。在时隙内执行无线通信还包括：在GP内末尾的预设时间段上向网络设备发送或从终端接收除确认信息外的上行信息。
在一种可能的设计中，下行通信包括上行授权，上行通信包括上行数据。
在一种可能的设计中，时隙的长度是第一常数，下行通信时间段的长度与GP的长度之和是第二常数。在时隙内执行无线通信还包括：在GP内起始的预设时间段上向终端发送或从网络设备接收不影响上行数据通信的下行信息。
在一种可能的设计中，时隙的长度是第一常数，上行通信时间段的长度与GP的长度之和是第三常数。在时隙内执行无线通信还包括：在GP内末尾的预设时间段上向网络设备发送或从终端接收不影响上行数据通信的上行信息。
在一种可能的设计中，所述还包括：向终端发送或从网络设备接收指示定时关系的指示消息。
第二方面，本申请实施例提供一种通信设备，包括：
处理器，用于根据网络设备与终端之间的通信状况，确定时隙中GP的长度，时隙包括：下行通信时间段、GP和上行通信时间段，其中GP的长度可变且GP用于隔离下行通信时间段和上行通信时间段。
收发机，用于在时隙内执行无线通信，无线通信包括：在下行通信时间段执行下行通信，以及在上行通信时间段执行上行通信。
通信状况包括如下至少一项：终端的上下行切换能力、下行通信的数据块大小、下行 通信与上行通信之间的定时关系。
在一种可能的设计中，时隙的长度是第一常数。
在一种可能的设计中，下行通信时间段的长度随GP的长度增加而减少或随GP的长度减少而增加。
在一种可能的设计中，下行通信时间段的长度与GP的长度之和是第二常数。
在一种可能的设计中，上行通信时间段的长度随GP的长度增加而减少或随GP的长度减少而增加。
在一种可能的设计中，上行通信时间段的长度与GP的长度之和是第三常数。
在一种可能的设计中，通信状况包括上下行切换能力。收发机，还用于接收终端上报的上下行切换能力，或者，向网络设备上报上下行切换能力。
在一种可能的设计中，上下行切换能力指示上下行切换所需时间；GP的长度随上下行切换所需时间的增加而减少或随上下行切换所需时间的减少而增加。
在一种可能的设计中，通信状况包括数据块大小，下行通信包括下行数据块通信，上行通信包括下行数据块通信的确认信息。其中，GP的长度随数据块大小的增加而减少或随数据块大小的减少而增加。
在一种可能的设计中，当数据块大小大于预设通信块阈值时，确定GP的长度为第一长度。当数据块大小小于或等于预设通信块阈值时，确定GP的长度为第二长度。第一长度大于第二长度。
在一种可能的设计中，定时关系指示上行通信距下行通信的间隔时长。其中，GP的长度随间隔时长增加而减少或随间隔时长减少而增加。
在一种可能的设计中，当间隔时长小于预设定时关系阈值时，确定GP的长度为第一长度。当间隔时长大于或等于定时关系阈值时，确定GP的长度为第二长度。第一长度大于第二长度。
在一种可能的设计中，定时关系指示上行通信和下行通信是否均包括在时隙内。当定时关系指示上行通信和下行通信均包括在时隙内，确定GP的长度为第一长度。当定时关系指示上行通信和下行通信并未均包括在时隙内，确定GP的长度为第二长度。第一长度大于第二长度。
在一种可能的设计中，下行通信包括下行数据块通信，上行通信包括下行数据块通信的确认信息。
在一种可能的设计中，时隙的长度是第一常数，下行通信时间段的长度与GP的长度之和是第二常数。收发机，还用于在GP内起始的预设时间段上向终端发送与确认信息无关的下行信息，或者，从网络设备接收与确认信息无关的下行信息。
在一种可能的设计中，时隙的长度是第一常数，上行通信时间段的长度与GP的长度之和是第三常数。收发机，还用于在GP内末尾的预设时间段上向网络设备发送除确认信息外的上行信息，或者，从终端接收除确认信息外的上行信息。
在一种可能的设计中，下行通信包括上行授权，上行通信包括上行数据。
在一种可能的设计中，时隙的长度是第一常数，下行通信时间段的长度与GP的长度之和是第二常数。收发机，还用于在GP内起始的预设时间段上向终端发送不影响上行数据通信的下行信息，或者，从网络设备接收不影响上行数据通信的下行信息。
在一种可能的设计中，时隙的长度是第一常数，上行通信时间段的长度与GP的长度之和是第三常数。收发机，还用于在GP内末尾的预设时间段上向网络设备发送不影响上行数据通信的上行信息，或者，从终端接收不影响上行数据通信的上行信息。
第三方面，本申请实施例提供一种通信设备，包括：
处理模块，用于根据网络设备与终端之间的通信状况，确定时隙中GP的长度，时隙包括：下行通信时间段、GP和上行通信时间段，其中GP的长度可变且GP用于隔离下行通信时间段和上行通信时间段。
在通信设备为网络设备时；发送模块，用于在时隙内的下行通信时间段执行下行通信。接收模块，用于在时隙内的上行通信时间段执行上行通信。或者，
在通信设备为终端时；接收模块，用于在时隙内的下行通信时间段执行下行通信。发送模块，用于在时隙内的上行通信时间段执行上行通信。
其中，通信状况包括如下至少一项：终端的上下行切换能力、下行通信的数据块大小、下行通信与上行通信之间的定时关系。
在一种可能的设计中，时隙的长度是第一常数。
在一种可能的设计中，下行通信时间段的长度随GP的长度增加而减少或随GP的长度减少而增加。
在一种可能的设计中，下行通信时间段的长度与GP的长度之和是第二常数。
在一种可能的设计中，上行通信时间段的长度随GP的长度增加而减少或随GP的长度减少而增加。
在一种可能的设计中，上行通信时间段的长度与GP的长度之和是第三常数。
在一种可能的设计中，通信状况包括上下行切换能力。在通信设备为网络设备时，接收模块，还用于接收终端上报的上下行切换能力。或者，在通信设备为终端时，发送模块，还用于向网络设备上报上下行切换能力。
在一种可能的设计中，上下行切换能力指示上下行切换所需时间；GP的长度随上下行切换所需时间的增加而减少或随上下行切换所需时间的减少而增加。
在一种可能的设计中，通信状况包括数据块大小，下行通信包括下行数据块通信，上行通信包括下行数据块通信的确认信息。其中，GP的长度随数据块大小的增加而减少或随数据块大小的减少而增加。
在一种可能的设计中，当数据块大小大于预设通信块阈值时，确定GP的长度为第一长度。当数据块大小小于或等于预设通信块阈值时，确定GP的长度为第二长度。第一长度大于第二长度。
在一种可能的设计中，在通信设备为网络设备时，发送模块，还用于向终端发送指示数据块大小的指示消息。或者，在通信设备为终端时，接收模块，还用于从网络设备接收指示数据块大小的指示消息。
在一种可能的设计中，定时关系指示上行通信距下行通信的间隔时长。其中，GP的长度随间隔时长增加而减少或随间隔时长减少而增加。
在一种可能的设计中，当间隔时长小于预设定时关系阈值时，确定GP的长度为第一长度。当间隔时长大于或等于定时关系阈值时，确定GP的长度为第二长度。第一长度大于第二长度。
在一种可能的设计中，定时关系指示上行通信和下行通信是否均包括在时隙内。当定时关系指示上行通信和下行通信均包括在时隙内，确定GP的长度为第一长度。当定时关系指示上行通信和下行通信并未均包括在时隙内，确定GP的长度为第二长度。第一长度大于第二长度。
在一种可能的设计中，下行通信包括下行数据块通信，上行通信包括下行数据块通信的确认信息。
在一种可能的设计中，时隙的长度是第一常数，下行通信时间段的长度与GP的长度之和是第二常数。在通信设备为网络设备时，发送模块，还用于在GP内起始的预设时间段上向终端发送与确认信息无关的下行信息。或者，在通信设备为终端时，接收模块，还用于在GP内起始的预设时间段上从网络设备接收与确认信息无关的下行信息。
在一种可能的设计中，时隙的长度是第一常数，上行通信时间段的长度与GP的长度之和是第三常数。在通信设备为终端时，发送模块，还用于在GP内末尾的预设时间段上向网络设备发送除确认信息外的上行信息。或者，在通信设备为网络设备时，接收模块，还用于在GP内末尾的预设时间段上从终端接收除确认信息外的上行信息。
在一种可能的设计中，下行通信包括上行授权，上行通信包括上行数据。
在一种可能的设计中，时隙的长度是第一常数，下行通信时间段的长度与GP的长度之和是第二常数。在通信设备为网络设备时，发送模块，还用于在GP内起始的预设时间段上向终端发送不影响上行数据通信的下行信息。在通信设备为终端时，接收模块，还用于在GP内起始的预设时间段上从网络设备接收不影响上行数据通信的下行信息。
在一种可能的设计中，时隙的长度是第一常数，上行通信时间段的长度与GP的长度之和是第三常数；在通信设备为终端时，发送模块，还用于在GP内末尾的预设时间段上向网络设备发送不影响上行数据通信的上行信息。或者，在通信设备为网络设备时，接收模块，还用于在GP内末尾的预设时间段上从终端接收不影响上行数据通信的上行信息。
在一种可能的设计中，在通信设备为网络设备时，发送模块，还用于向终端发送指示定时关系的指示消息。或者，在通信设备为终端时，接收模块，还用于从网络设备接收指示定时关系的指示消息。
第四方面，本申请实施例提供一种计算机可读存储介质，当存储介质中的指令由通信设备的处理器执行时，使得通信设备能够执行上述任一种通信方法。
综上，本申请实施例提供的通信方法和设备，根据网络设备与终端之间的通信状况，确定时隙中GP的长度，然后在时隙内执行无线通信，由于GP的长度的灵活可变，避免了资源浪费的现象，提高了资源利用效率。
附图说明
图1为本申请实施例提供的通信系统的示意图。
图2为本申请实施一提供的通信方法的流程图。
图3为本申请实施例提供的时隙的一种示意图。
图4为本申请实施例二提供的通信方法的流程图。
图5为本申请实施例三提供的通信方法的流程图。
图6为本申请实施例四提供的通信方法的流程图。
图7为本申请实施例提供的下行数据块与ACK或NACK的定时关系的一种示意图。
图8为本申请实施例五提供的通信方法的流程图。
图9为本申请实施例提供的UL GRANT与上行数据的定时关系的一种示意图。
图10为本申请实施例一提供的通信设备的结构示意图。
图11为本申请实施例二提供的通信设备的结构示意图。
具体实施方式
图1为本申请实施例提供的通信系统的示意图，如图1所示，通信系统包括网络设备和至少一个终端，网络设备和该至少一个终端通过下述各本申请实施例提供的技术方案进行通信。
以下，对本申请中的部分用语进行解释说明，以便于本领域技术人员理解：
网络设备：又称为无线接入网(Radio Access Network，RAN)设备，是一种将终端接入到无线网络的设备，可以是全球移动通讯(Global System of Mobile communication，GSM)或码分多址(Code Division Multiple Access，CDMA)中的基站(Base Transceiver Station，简称BTS)，也可以是宽带码分多址(Wideband Code Division Multiple Access，WCDMA)中的基站(NodeB，NB)，还可以是长期演进(Long Term Evolution，LTE)中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者中继站或接入点，或者5G网络中的基站等，在此并不限定。
终端：可以是无线终端也可以是有线终端，无线终端可以是指向用户提供语音和/或其他业务数据连通性的设备，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其他处理设备。无线终端可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信，无线终端可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。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。无线终端也可以称为系统、订户单元(Subscriber Unit)、订户站(Subscriber Station)，移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、远程终端(Remote Terminal)、接入终端(Access Terminal)、用户终端(User Terminal)、用户代理(User Agent)、用户设备(User Device or User Equipment)，在此不作限定。
图2为本申请实施一提供的通信方法的流程图，如图2所示，本实施例的方法可以包括：
S101、根据网络设备与终端之间的通信状况，确定时隙中GP的长度。
本实施例中的时隙包括下行通信时间段、GP、和上行通信时间段，例如如图3所示，GP位于下行通信时间段与上行通信时间段之间，该GP用于隔离该下行通信时间段和上行通信时间段。其中，本实施例中的时隙的GP的长度不是固定的，而是可变的。其中，每个时隙包括多个OFDM符号，例如7个OFDM符号。下行通信时间段可以为时隙中的 X个OFDM符号，GP可以为时隙中的Y个OFDM符号，上行通信时间段可以为时隙中的Z个OFDM符号，本实施例中的X、Y、Z为大于0的整数。其中，下行通信时间段的长度可以用符号的个数X来表示，GP的长度可以用符号的个数Y来表示，上行通信时间段的长度可以用符号的个数Z表示。
本实施例中的GP的长度是可变的，即上述的Y是变化的，而且GP的长度可以受到网络设备与终端之间的通信状况的影响，因此，本实施例可以根据网络设备与终端之间的通信状况，确定GP的长度。例如：网络设备与终端之间的通信状况直接与GP的长度对应。或者，预先设置有标准GP的长度，本实施例根据网络设备与终端之间的通信状况确定GP的长度变化值，再根据标准GP的长度和GP的长度变化值，确定GP的长度，如GP的长度等于标准GP的长度与GP的长度变化值之和。该长度变化值可以是Δ值。
其中，网络设备与终端之间的通信状况包括如下至少一项：终端的上下行切换能力、下行通信的数据块大小、下行通信与上行通信之间的定时关系。
S102、在所述时隙内执行无线通信。
本实施例中的时隙的GP的长度即等于上述S101中确定的GP的长度，该无线通信包括：在下行通信时间段执行下行通信，以及在上行通信时间段执行上行通信。
其中，本实施例的执行主体可以是网络设备，也可以是终端。在本实施例的执行主体为网络设备时，S102的实现过程为：网络设备在该时隙的下行通信时间段对终端执行下行发送，以及在该时隙的上行通信时间段对终端执行上行接收。在本实施例的执行主体为终端时，S102的实现过程为：终端在该时隙的上行通信时间段对网络设备执行上行发送，以及在该时隙的下行通信时间段对网络设备执行下行接收。
本实施例中，时隙中的用于隔离下行通信时间段与上行通信时间段的GP的长度是可变的，本实施例是根据网络设备与终端之间的通信状况，确定时隙中GP的长度，然后在所述时隙内执行无线通信，避免了资源浪费的现象，提高了资源利用效率。
可选地，上述时隙的长度是第一常数或随载波间隔、循环前缀(Cyclic Prefix，CP)长度等参数的变化而变，该第一常数是可配置的常数。该第一常数是固定值。其中，第一常数等于上述X、上述Y和上述Z三者之和。
可选地，所述下行通信时间段的长度随所述GP的长度增加而减少，或者，所述下行通信时段的长度随所述GP的长度减少而增加。
可选地，所述下行通信时间段的长度与所述GP的长度之和是第二常数。其中，下行通信时间段的长度减少量等于GP的长度的增加量，或下行通信时间段的长度增加量等于GP的减少量。例如：GP的长度为Y1，下行通信时间段的长度为X1，则X1+Y1＝第二常数。
可选地，所述上行通信时间段的长度随所述GP的长度增加而减少，或者，所述上行通信时间段的长度随所述GP的长度减少而增加。
可选地，所述上行通信时间段的长度与所述GP的长度之和是第三常数。其中，上行通信时间段的长度减少量等于GP的长度的增加量，上行通信时间段的长度增加量等于GP的减少量。例如：GP的长度为Y1，上行通信时间段的长度为Z1，则Z1+Y1＝第三常数。
图4为本申请实施例二提供的通信方法的流程图，如图4所示，本实施例的方法以网 络设备与终端之间的通信状况包括上下行切换能力为例，可以包括：
S201、终端向网络设备上报上下行切换能力。
本实施例中，终端的射频器件从下行接收状态转换到上行发送状态是需要一定的时间的，不同的射频器件对应的上下行切换能力是不同的。在通信网络中存在着各种形态的终端，这些终端的业务、制造成本、设备大小等等都不同，所采用的射频器件也是多种多样，也就意味着它们会具备不同的上下行切换能力。为了更有效的利用频谱资源，本实施例中的GP的长度可以与终端的上下行切换能力有关。因此，终端向网络设备上报上下行切换能力，相应地，网络设备接收终端上报的该上下行切换能力。
本实施例中，可以预先针对不同的上下行切换能力进行类别编号，终端在接入网络时向网络设备发送该终端的上下行切换能力的类别编号。相应地，网络设备接收到该类别编号，根据该类别编号确定该终端的上下行切换能力。
S202、网络设备根据终端的上下行切换能力，确定时隙中GP的长度。
S203、终端根据该终端的上下行切换能力，确定时隙中GP的长度。
其中，终端的上下行切换能力指示上下行切换所需时间，该GP的长度随上下行切换所需时间的增加而减少，或者，该GP的长度随上下行切换所需时间的减少而增加。
在以终端的上下行切换能力指示上下行切换所需时间为T1时，本实施例确定的时隙中GP的长度为Y1。在终端的上下行切换能力指示上下行切换所需时间为T2时，本实施例确定的时隙中GP的长度为Y2。若T1大于T2，则Y1小于Y2。若T1小于T2，则Y1大于Y2。
需要说明的是，S203与S201和S202的执行顺序不分先后。
S204、网络设备与终端在该时隙内执行无线通信。
本实施例中，S204的具体实现过程可以参见图1所示实施例中的相关描述，此处不再赘述。
本实施例中，时隙中的用于隔离下行通信时间段与上行通信时间段的GP的长度是可变的，本实施例是根据终端的上下行切换能力，确定时隙中GP的长度，然后在所述时隙内执行无线通信，避免了资源浪费的现象，提高了资源利用效率。
图5为本申请实施例三提供的通信方法的流程图，如图5所示，本实施例的方法以网络设备与终端之间的通信状况包括下行通信的数据块大小为例，下面将下行通信的数据块大小简称为下行数据块大小，本实施例的方法可以包括：
S301、网络设备向终端发送指示下行数据块大小的指示消息。
本实施例中，终端在根据下行数据块的大小，确定时隙中GP的长度之前，可以接收网络设备发送的指示该下行数据块的大小的指示消息，根据该指示消息，确定该下行数据块的大小。
S302、网络设备根据该下行数据块的大小，确定时隙中GP的长度。
S303、终端根据该下行数据块的大小，确定时隙中GP的长度。
本实施例中的时隙中的GP用于隔离该时隙中的下行通信时间段与时隙中的上行通信。该时隙中的下行通信包括下行数据块通信，该时隙中的上行通信包括下行数据块通信的确认信息。该确认信息可以是HARQ(混合自动重传请求)信息，例如为ACK，表示成功接收到下行数据块；该确认信息例如为NACK，表示未接收到下行数据块。由于下行 数据块大小会影响到终端译码的速度，从而影响终端的发送下行数据块的ACK或NACK的时间。因此，网络设备与终端分别根据下行数据块大小，确定该时隙中GP的长度。
其中，该GP的长度随下行数据块大小的增加而减少，或者，该GP的长度随下行数据块的减少而增加。
在下行数据块的大小为B1时，本实施例确定的时隙中GP的长度为Y1。在下行数据块的大小为B2时，本实施例确定的时隙中GP的长度为Y2。若B1大于B2，则Y1小于Y2。若B1小于B2，则Y1大于Y2。
需要说明的是，S302与S301、S303的执行顺序不分先后。
其中，以GP的长度在第一长度与第二长度之间取值为例，本实施例中的终端或者网络设备确定下行数据块大小是否大于预设通信块阈值，其中，该预设通块阈值可以是预先规定的或者，可以是网络设通过高层信令，如RRC(无线资源控制)信令下发给终端的。当确定下行数据块大小大于(或者：大于或等于)预设通信块阈值时，确定GP的长度为第一长度；当确定下行数据块大小小于或等于(或者：小于)预设通信块阈值时，确定GP的长度为第二长度；其中，第一长度大于第二长度。
需要说明的是，GP的长度可以在多个长度值之间进行取值，本实施例不限于上述两个长度值。例如：若在三个长度值之间进行取值，则本实施例可以将下行数据块大小与第一预设通信块阈值和第二预设通信块阈值进行比较。
S304、网络设备在该时隙的下行通信时间段向终端发送该下行数据块。相应地，终端在该时隙的下行通信时间段接收网络设备发送的下行数据块。
S305、终端在该时隙的上行通信时间段向网络设备发送ACK或NACK。相应地，网络设备在该时隙的上行通信时间段接收终端发送的ACK或NACK。
若终端成功接收到下行数据块，则终端发送的是ACK，若终端未接收到下行数据块，则终端发送的是NACK。
另外，在一种实施方式中，网络设备与终端在GP内，即在执行S304之后且S305之前，既不发送也不接收。
在另一种实施方式中，网络设备可以在GP内向终端进行发送。该时隙的长度是第一常数，而且下行通信时间段的长度与GP的长度之和是第二常数；网络设备在执行S304之后，还可以在该GP内起始的预设时间段(一个或多个OFDM符号)上向终端发送与ACK或NACK无关的下行信息，相应地，终端在该预设时间段上接收网络设备发送的该下行信息，例如：信道状态信息-参考信号(Channel State Information，Reference Signal，CSI-RS)或者本次下行数据块传输的冗余传输等。
在再一种实施方式中，终端可以在GP内向网络设备进行发送。该时隙的长度是第一常数，而且上行通信时间段的长度与GP的长度之和是第三常数；终端在执行S305之前，还可以在该GP内末尾的预设时间段上(一个或多个OFDM符号)向网络设备发送除该ACK或NACK外的上行信息，相应地，网络设备在该预设时间段上接收终端发送该上行信息，例如是信道探测参考信号(Sounding Reference Signal，SRS)、上行解调参考信号(Demodulation Reference Signal，DMRS)等。
本实施例中，时隙中的用于隔离下行通信时间段与上行通信时间段的GP的长度是可变的，本实施例是根据下行数据块大小，确定时隙中GP的长度，然后在所述时隙内网络 设备向终端发送下行数据块，且终端向网络设备发送ACK或NACK，避免了资源浪费的现象，提高了资源利用效率。
图6为本申请实施例四提供的通信方法的流程图，如图6所示，本实施例的方法以网络设备与终端之间的通信状况包括所述下行通信与所述上行通信之间的定时关系为例，可以包括：
S401、网络设备向终端发送指示定时关系的指示消息。
本实施例中，终端在根据下行通信与上行通信之间的定时关系确定GP的长度之前，从网络设备处获知下行通信与上行通信之间的定时关系。该定时关系可以指示上行通信和下行通信是否均包括在同一个时隙内，即Self-contained(自包含)模式。其中，本实施例以下行通信包括下行数据块通信，上行通信包括下行数据块通信的确认信息为例，确认信息可以是ACK，表示终端成功接收到下行数据块；或者，确认信息可以是NACK，表示终端未成功接收到下行数据块。
S402、网络设备根据下行数据块与该下行数据块的ACK或NACK是否均包括在时隙内，确定时隙中GP的长度。
S403、终端根据下行数据块与该下行数据块的ACK或NACK是否均包括在时隙内，确定时隙中GP的长度。
本实施例中，网络设备和终端根据下行数据块与该下行数据块的ACK或NAC是否均包括在同一时隙内，确定该时隙中GP的长度。具体地，网络设备和终端根据下行数据块与该下行数据块的ACK或NACK均包括在同一时隙内，确定时隙中GP的长度为第一长度，以及根据下行数据块与该下行数据块的ACK或NACK未均包括在同一时隙内，确定时隙中GP的长度为第二长度，第一长度大于第二长度。
需要说明的是，S402与S401、S403的执行顺序不分先后。
S404、网络设备在时隙的下行通信时间段向终端发送下行数据块。相应地，终端在时隙的下行通信时间段接收网络设备发送的下行数据块。
S405、终端在时隙的上行通信时间段向网络设备发送ACK或NACK。相应地，网络设备在时隙的上行通信时间段接收终端发送的ACK或NACK。
本实施例中，若下行数据块以及该下行数据块的ACK或NACK均包括在同一时隙中，则S405中终端发送的ACK或NACK为S404中下行数据块的确认信息。若下行数据块以及该下行数据块的ACK或NACK未均包括在同一时隙中，此处以分别位于相邻的时隙中为例，则S405中终端发送的ACK或NACK例如是上一个时隙中下行数据块的确认信息，而S404中网络设备发送的下行数据块的确认信息为下一个时隙中的ACK或NACK。其中，下行数据块通信与该下行数据块通信的定时关系如图7所示。
另外，在一种实施方式中，网络设备与终端在GP内，即在执行S404之后且S405之前，既不发送也不接收。
在另一种实施方式中，网络设备可以在GP内向终端进行发送。该时隙的长度是第一常数，而且下行通信时间段的长度与GP的长度之和是第二常数；网络设备在执行S404之后，还可以在该GP内起始的预设时间段(一个或多个OFDM符号)上向终端发送与ACK或NACK无关的下行信息，相应地，终端在该预设时间段上接收网络设备发送的该下行信息，例如：CSI-RS或者本次下行数据块传输的冗余传输等。
在再一种实施方式中，终端可以在GP内向网络设备进行发送。该时隙的长度是第一常数，而且上行通信时间段的长度与GP的长度之和是第三常数；终端在执行S405之前，还可以在该GP内末尾的预设时间段上(一个或多个OFDM符号)向网络设备发送除该ACK或NACK外的上行信息，相应地，网络设备在该预设时间段上接收终端发送该上行信息，例如是SRS、DMRS等。
本实施例中，时隙中的用于隔离下行通信时间段与上行通信时间段的GP的长度是可变的，本实施例是根据下行数据块与该下行数据块的ACK或NACK是否跨时隙，确定时隙中GP的长度，然后在所述时隙内网络设备向终端发送下行数据块，且终端向网络设备发送ACK或NACK，避免了资源浪费的现象，提高了资源利用效率。
基于图6所示的实施例，上述定时关系可以扩展至指示下行数据块距该下行数据块的ACK或NACK的间隔时长，相应地，网络设备和终端根据该间隔时长确定时隙中GP的长度。而且，该GP的长度随该间隔时长增加而减少，或者，该GP的长度随间隔时长减少而增加。在间隔时长为L1时，本实施例确定的时隙中GP的长度为Y1。在间隔时长为L2时，本实施例确定的时隙中GP的长度为Y2。若L1大于L2，则Y1小于Y2。若L1小于L2，则Y1大于Y2。
在一种可行的实现方式中，网络设备和终端中可以预先设置有预设定时关系阈值，或者，网络设备半静态向终端发送该预设定时关系阈值。然后，本实施例中的终端和网络设备分别根据上述间隔时长小于(或者：小于等于)预设定时关系阈值，确定GP的长度为上述第一长度；或者，终端和网络设备分根据上述间隔时长大于或等于(或者：大于)预设定时关系阈值，确定GP的长度为上述第二长度。
图8为本申请实施例五提供的通信方法的流程图，如图8所示，本实施例的方法以网络设备与终端之间的通信状况包括所述下行通信与所述上行通信之间的定时关系为例，可以包括：
S501、网络设备向终端发送指示定时关系的指示消息。
本实施例中，终端在根据下行通信与上行通信之间的定时关系确定GP的长度之前，从网络设备处获知下行通信与上行通信之间的定时关系。该定时关系可以指示下行通信和上行通信是否均包括在时隙内为例。其中，本实施例以上行通信包括上行数据，下行通信包括该上行数据的上行授权为例。上述上行授权例如可以是上行数据调度许可(UL GRANT)。
S502、网络设备根据上行数据与该上行数据的UL GRANT是否均包括在时隙内，确定时隙中GP的长度。
S503、终端根据上行数据与该上行数据的UL GRANT是否均包括在时隙内，确定时隙中GP的长度。
本实施例中，网络设备和终端根据上行数据与该上行数据的UL GRANT是否均包括在同一时隙内，确定该时隙中GP的长度。具体地，网络设备和终端根据上行数据与该上行数据块的UL GRANT均包括在同一时隙内，确定时隙中GP的长度为第一长度，以及根据上行数据与该上行数据的UL GRANT未均包括在同一时隙内，确定时隙中GP的长度为第二长度，第一长度大于第二长度。
需要说明的是，S502与S501、S503的执行顺序不分先后。
S504、网络设备在时隙的下行通信时间段向终端发送UL GRANT。相应地，终端在时隙的下行通信时间段接收网络设备发送的UL GRANT。
S505、终端在时隙的上行通信时间段向网络设备发送UL GRANT对应的上行数据。相应地，网络设备在时隙的上行通信时间段接收终端发送的UL GRANT对应的上行数据。
本实施例中，若上行数据以及该上行数据的UL GRANT均包括在同一时隙中，则S505中终端发送的上行数据为S504中UL GRANT对应的上行数据。若上行数据以及该上行数据的UL GRANT未均包括在同一时隙中，此处以分别位于相邻的时隙中为例，则S505中终端发送的上行数据例如是上一个时隙中UL GRANT对应的上行数据，而S504中网络设备发送的上行授权为下一个时隙中的上行数据的UL GRANT。其中，UL GRANT与上行数据的定时关系如图9所示。
另外，在一种实施方式中，网络设备与终端在GP内，即在执行S504之后且S505之前，既不发送也不接收。
在另一种实施方式中，网络设备可以在GP内向终端进行发送。该时隙的长度是第一常数，而且下行通信时间段的长度与GP的长度之和是第二常数；网络设备在执行S504之后，还可以在该GP内起始的预设时间段(一个或多个OFDM符号)上向终端发送不影响上行数据通信的下行信息，相应地，终端在该预设时间段上接收网络设备发送的该下行信息，例如：CSI-RS等。
在再一种实施方式中，终端可以在GP内向网络设备进行发送。该时隙的长度是第一常数，而且上行通信时间段的长度与GP的长度之和是第三常数；终端在执行S505之前，还可以在该GP内末尾的预设时间段上(一个或多个OFDM符号)向网络设备发送不影响上行数据通信的上行信息，相应地，网络设备在该预设时间段上接收终端发送该上行信息，例如是SRS、DMRS等。
本实施例中，时隙中的用于隔离下行通信时间段与上行通信时间段的GP的长度是可变的，本实施例是根据上行数据与该上行数据的UL GRANT是否跨时隙，确定时隙中GP的长度，然后在所述时隙内网络设备向终端发送UL GRANT，且终端向网络设备发送上行数据，避免了资源浪费的现象，提高了资源利用效率。
基于图8所示的实施例，上述定时关系可以扩展至指示上行数据距该上行数据的UL GRANT的间隔时长，相应地，网络设备和终端根据该间隔时长确定时隙中GP的长度。而且，该GP的长度随该间隔时长增加而减少，或者，该GP的长度随间隔时长减少而增加。在间隔时长为L1时，本实施例确定的时隙中GP的长度为Y1。在间隔时长为L2时，本实施例确定的时隙中GP的长度为Y2。若L1大于L2，则Y1小于Y2。若L1小于L2，则Y1大于Y2。
在一种可行的实现方式中，网络设备和终端中可以预先设置有预设定时关系阈值，或者，网络设备半静态向终端发送该预设定时关系阈值。然后，本实施例中的终端和网络设备分别根据上述间隔时长小于(或者：小于等于)预设定时关系阈值，确定GP的长度为上述第一长度；或者，终端和网络设备分别根据上述间隔时长大于或等于(或者：大于)预设定时关系阈值，确定GP的长度为上述第二长度。
在上述各实施例的基础上，网络设备与终端中可以预先配置有一个GP的标准长度，上述的预设时间段的长度等于上述确定的GP的长度与GP的标准长度之差。
需要说明的是，图4、图5、图6、图8所示的实施例中的至少两个实施例可以结合。
图10为本申请实施例一提供的通信设备的结构示意图，如图10所示，本实施例的通信设备可以包括：处理器11和收发机12。处理器11与收发机12通信连接。所述收发机12可以包括混频器等必要的射频通信器件。所述处理器11可以包括中央处理单元(Central Processing Unit，CPU)、数字信号处理器(digital signal processor，DSP)、微控制器(Microcontroller Unit，MCU)、专用集成电路(Application Specific Integrated Circuit，ASIC)或现场可编程逻辑门阵列(Field－Programmable Gate Array，FPGA)中的至少一个。
处理器11，用于根据网络设备与终端之间的通信状况，确定时隙中GP的长度，时隙包括：下行通信时间段、GP和上行通信时间段，其中GP的长度可变且GP用于隔离下行通信时间段和上行通信时间段。
收发机12，用于在时隙内执行无线通信，无线通信包括：在下行通信时间段执行下行通信，以及在上行通信时间段执行上行通信。
其中，通信状况包括如下至少一项：终端的上下行切换能力、下行通信的数据块大小、下行通信与上行通信之间的定时关系。
可选地，时隙的长度是第一常数。
可选地，下行通信时间段的长度随GP的长度增加而减少或随GP的长度减少而增加。
可选地，下行通信时间段的长度与GP的长度之和是第二常数。
可选地，上行通信时间段的长度随GP的长度增加而减少或随GP的长度减少而增加。
可选地，上行通信时间段的长度与GP的长度之和是第三常数。
可选地，通信状况包括上下行切换能力。在通信设备为网络设备时，收发机12，还用于接收终端上报的上下行切换能力。或者，在通信设备为终端时，收发机12，还用于向网络设备上报上下行切换能力。
可选地，上下行切换能力指示上下行切换所需时间；GP的长度随上下行切换所需时间的增加而减少或随上下行切换所需时间的减少而增加。
可选地，通信状况包括数据块大小，下行通信包括下行数据块通信，上行通信包括下行数据块通信的确认信息。其中，GP的长度随数据块大小的增加而减少或随数据块大小的减少而增加。
可选地，当数据块大小大于预设通信块阈值时，确定GP的长度为第一长度。当数据块大小小于或等于预设通信块阈值时，确定GP的长度为第二长度。第一长度大于第二长度。
可选地，在通信设备为网络设备时，收发机12，还用于向终端发送指示数据块大小的指示消息。或者，在通信设备为终端时，收发机12，还用于从网络设备接收指示数据块大小的指示消息。
可选地，定时关系指示上行通信距下行通信的间隔时长。其中，GP的长度随间隔时长增加而减少或随间隔时长减少而增加。
可选地，当间隔时长小于预设定时关系阈值时，确定GP的长度为第一长度。当间隔时长大于或等于定时关系阈值时，确定GP的长度为第二长度。第一长度大于第二长度。
可选地，定时关系指示上行通信和下行通信是否均包括在时隙内。当定时关系指示上行通信和下行通信均包括在时隙内，确定GP的长度为第一长度。当定时关系指示上行通信和下行通信并未均包括在时隙内，确定GP的长度为第二长度。第一长度大于第二长度。
可选地，下行通信包括下行数据块通信，上行通信包括下行数据块通信的确认信息。
可选地，时隙的长度是第一常数，下行通信时间段的长度与GP的长度之和是第二常数。在通信设备为网络设备时，收发机12，还用于在GP内起始的预设时间段上向终端发送与确认信息无关的下行信息。或者，在通信设备为终端时，收发机12，还用于在GP内起始的预设时间段上从网络设备接收与确认信息无关的下行信息。
可选地，时隙的长度是第一常数，上行通信时间段的长度与GP的长度之和是第三常数。在通信设备为终端时，收发机12，还用于在GP内末尾的预设时间段上向网络设备发送除确认信息外的上行信息。或者，在通信设备为网络设备时，收发机12，还用于在GP内末尾的预设时间段上从终端接收除确认信息外的上行信息。
可选地，下行通信包括上行授权，上行通信包括上行数据。
可选地，时隙的长度是第一常数，下行通信时间段的长度与GP的长度之和是第二常数。在通信设备为网络设备时，收发机12，还用于在GP内起始的预设时间段上向终端发送不影响上行数据通信的下行信息。在通信设备为终端时，收发机12，还用于在GP内起始的预设时间段上从网络设备接收不影响上行数据通信的下行信息。
可选地，时隙的长度是第一常数，上行通信时间段的长度与GP的长度之和是第三常数；在通信设备为终端时，收发机12，还用于在GP内末尾的预设时间段上向网络设备发送不影响上行数据通信的上行信息。或者，在通信设备为网络设备时，收发机12，还用于在GP内末尾的预设时间段上从终端接收不影响上行数据通信的上行信息。
可选地，在通信设备为网络设备时，收发机12，还用于向终端发送指示定时关系的指示消息。或者，在通信设备为终端时，收发机12，还用于从网络设备接收指示定时关系的指示消息。
可选地，本实施例的通信设备还包括存储器13，存储器13用于存储程序指令，处理器11用于调用存储器13中的程序指令执行上述方案。
所述程序指令可以以软件功能单元的形式实现并能够作为独立的产品销售或使用，所述存储器13可以是任意形式的计算机可读取存储介质。基于这样的理解，本申请的技术方案的全部或部分可以以软件产品的形式体现出来，包括若干指令用以使得一台计算机设备，具体可以是处理器11，来执行本申请各个实施例所述方法的全部或部分步骤。而前述的计算机可读存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
本实施例以上所述的通信设备，可以用于执行本申请上述各方法实施例的技术方案，其实现原理和技术效果类似，此处不再赘述。
图11为本申请实施例二提供的通信设备的结构示意图，如图11所示，本实施例的通信设备可以包括：处理模块21、发送模块22和接收模块23。可以理解，所述处理模块21、发送模块22和接收模块23可以是硬件模块或软件模块，或者是软硬件结合实现的模块。
具体地，处理模块21，用于根据网络设备与终端之间的通信状况，确定时隙中GP的长度，时隙包括：下行通信时间段、GP和上行通信时间段，其中GP的长度可变且GP用于隔离下行通信时间段和上行通信时间段。
在通信设备为网络设备时；发送模块22，用于在时隙内的下行通信时间段执行下行通信。接收模块23，用于在时隙内的上行通信时间段执行上行通信。或者，
在通信设备为终端时；接收模块23，用于在时隙内的下行通信时间段执行下行通信。发送模块22，用于在时隙内的上行通信时间段执行上行通信。
其中，通信状况包括如下至少一项：终端的上下行切换能力、下行通信的数据块大小、下行通信与上行通信之间的定时关系。
可选地，时隙的长度是第一常数。
可选地，下行通信时间段的长度随GP的长度增加而减少或随GP的长度减少而增加。
可选地，下行通信时间段的长度与GP的长度之和是第二常数。
可选地，上行通信时间段的长度随GP的长度增加而减少或随GP的长度减少而增加。
可选地，上行通信时间段的长度与GP的长度之和是第三常数。
可选地，通信状况包括上下行切换能力。在通信设备为网络设备时，接收模块23，还用于接收终端上报的上下行切换能力。或者，在通信设备为终端时，发送模块22，还用于向网络设备上报上下行切换能力。
可选地，上下行切换能力指示上下行切换所需时间；GP的长度随上下行切换所需时间的增加而减少或随上下行切换所需时间的减少而增加。
可选地，通信状况包括数据块大小，下行通信包括下行数据块通信，上行通信包括下行数据块通信的确认信息。其中，GP的长度随数据块大小的增加而减少或随数据块大小的减少而增加。
可选地，当数据块大小大于预设通信块阈值时，确定GP的长度为第一长度。当数据块大小小于或等于预设通信块阈值时，确定GP的长度为第二长度。第一长度大于第二长度。
可选地，在通信设备为网络设备时，发送模块22，还用于向终端发送指示数据块大小的指示消息；或者，在通信设备为终端时，接收模块23，还用于从网络设备接收指示数据块大小的指示消息。
可选地，定时关系指示上行通信距下行通信的间隔时长。其中，GP的长度随间隔时长增加而减少或随间隔时长减少而增加。
可选地，当间隔时长小于预设定时关系阈值时，确定GP的长度为第一长度。当间隔时长大于或等于定时关系阈值时，确定GP的长度为第二长度。第一长度大于第二长度。
可选地，定时关系指示上行通信和下行通信是否均包括在时隙内。当定时关系指示上行通信和下行通信均包括在时隙内，确定GP的长度为第一长度。当定时关系指示上行通信和下行通信并未均包括在时隙内，确定GP的长度为第二长度。第一长度大于第二长度。
可选地，下行通信包括下行数据块通信，上行通信包括下行数据块通信的确认信息。
可选地，时隙的长度是第一常数，下行通信时间段的长度与GP的长度之和是第二常数。在通信设备为网络设备时，发送模块22，还用于在GP内起始的预设时间段上向终端发送与确认信息无关的下行信息。或者，在通信设备为终端时，接收模块23，还用于从 网络设备接收与确认信息无关的下行信息。
可选地，时隙的长度是第一常数，上行通信时间段的长度与GP的长度之和是第三常数。在通信设备为终端时，发送模块22，还用于在GP内末尾的预设时间段上向网络设备发送除确认信息外的上行信息。或者，在通信设备为网络设备时，接收模块23，还用于从终端接收除确认信息外的上行信息。
可选地，下行通信包括上行授权，上行通信包括上行数据。
可选地，时隙的长度是第一常数，下行通信时间段的长度与GP的长度之和是第二常数。在通信设备为网络设备时，发送模块22，还用于在GP内起始的预设时间段上向终端发送不影响上行数据通信的下行信息。在通信设备为终端时，接收模块23，还用于从网络设备接收不影响上行数据通信的下行信息。
可选地，时隙的长度是第一常数，上行通信时间段的长度与GP的长度之和是第三常数；在通信设备为终端时，发送模块22，还用于在GP内末尾的预设时间段上向网络设备发送不影响上行数据通信的上行信息。或者，在通信设备为网络设备时，接收模块23，还用于从终端接收不影响上行数据通信的上行信息。
可选地，在通信设备为网络设备时，发送模块22，还用于向终端发送指示定时关系的指示消息。或者，在通信设备为终端时，接收模块23，还用于从网络设备接收指示定时关系的指示消息。
本实施例的通信设备，可以用于执行本申请上述各方法实施例的技术方案，其实现原理和技术效果类似，此处不再赘述。

Claims (38)

  1. 一种通信方法，其特征在于，包括：
    根据网络设备与终端之间的通信状况，确定时隙中保护间隔GP的长度，所述时隙包括：下行通信时间段、所述GP和上行通信时间段，其中所述GP的长度可变且所述GP用于隔离所述下行通信时间段和所述上行通信时间段；
    在所述时隙内执行无线通信，所述无线通信包括：在所述下行通信时间段执行下行通信，以及在所述上行通信时间段执行上行通信；其中，
    所述通信状况包括如下至少一项：所述终端的上下行切换能力、所述下行通信的数据块大小、所述下行通信与所述上行通信之间的定时关系。
  2. 根据权利要求1所述的方法，其特征在于，所述时隙的长度是第一常数。
  3. 根据权利要求2所述的方法，其特征在于，所述下行通信时间段的长度随所述GP的长度增加而减少或随所述GP的长度减少而增加。
  4. 根据权利要求3所述的方法，其特征在于，所述下行通信时间段的长度与所述GP的长度之和是第二常数。
  5. 根据权利要求2所述的方法，其特征在于，所述上行通信时间段的长度随所述GP的长度增加而减少或随所述GP的长度减少而增加。
  6. 根据权利要求5所述的方法，其特征在于，所述上行通信时间段的长度与所述GP的长度之和是第三常数。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述通信状况包括所述上下行切换能力；
    所述方法还包括：接收所述终端上报的所述上下行切换能力或向所述网络设备上报所述上下行切换能力。
  8. 根据权利要求7所述的方法，其特征在于，所述上下行切换能力指示上下行切换所需时间；所述GP的长度随所述上下行切换所需时间的增加而减少或随所述上下行切换所需时间的减少而增加。
  9. 根据权利要求1至6中任一项所述的方法，其特征在于，所述通信状况包括所述数据块大小，所述下行通信包括下行数据块通信，所述上行通信包括所述下行数据块通信的确认信息；其中，
    所述GP的长度随所述数据块大小的增加而减少或随所述数据块大小的减少而增加。
  10. 根据权利要求9所述的方法，其特征在于，当所述数据块大小大于预设通信块阈值时，确定所述GP的长度为第一长度；
    当所述数据块大小小于或等于所述预设通信块阈值时，确定所述GP的长度为第二长度；
    所述第一长度大于所述第二长度。
  11. 根据权利要求1至6中任一项所述的方法，其特征在于，所述定时关系指示所述上行通信距所述下行通信的间隔时长；其中，
    所述GP的长度随所述间隔时长增加而减少或随所述间隔时长减少而增加。
  12. 根据权利要求11所述的方法，其特征在于，当所述间隔时长小于预设定时关系 阈值时，确定所述GP的长度为第一长度；
    当所述间隔时长大于或等于所述定时关系阈值时，确定所述GP的长度为第二长度；
    所述第一长度大于所述第二长度。
  13. 根据权利要求1至6中任一项所述的方法，其特征在于，所述定时关系指示所述上行通信和所述下行通信是否均包括在所述时隙内；
    当所述定时关系指示所述上行通信和所述下行通信均包括在所述时隙内，确定所述GP的长度为第一长度；
    当所述定时关系指示所述上行通信和所述下行通信并未均包括在所述时隙内，确定所述GP的长度为第二长度；
    所述第一长度大于所述第二长度。
  14. 根据权利要求11至13中任一项所述的方法，其特征在于，所述下行通信包括下行数据块通信，所述上行通信包括所述下行数据块通信的确认信息。
  15. 根据权利要求9或10或14所述的方法，其特征在于，所述时隙的长度是第一常数，所述下行通信时间段的长度与所述GP的长度之和是第二常数；
    在所述时隙内执行无线通信还包括：在所述GP内起始的预设时间段上向所述终端发送或从所述网络设备接收与所述确认信息无关的下行信息。
  16. 根据权利要求9或10或14所述的方法，其特征在于，所述时隙的长度是第一常数，所述上行通信时间段的长度与所述GP的长度之和是第三常数；
    在所述时隙内执行无线通信还包括：在所述GP内末尾的预设时间段上向所述网络设备发送或从所述终端接收除所述确认信息外的上行信息。
  17. 根据权利要求11至13中任一项所述的方法，其特征在于，所述下行通信包括上行授权，所述上行通信包括上行数据。
  18. 根据权利要求17所述的方法，其特征在于，所述时隙的长度是第一常数，所述下行通信时间段的长度与所述GP的长度之和是第二常数；
    在所述时隙内执行无线通信还包括：在所述GP内起始的预设时间段上向所述终端发送或从所述网络设备接收不影响所述上行数据通信的下行信息。
  19. 根据权利要求17所述的方法，其特征在于，所述时隙的长度是第一常数，所述上行通信时间段的长度与所述GP的长度之和是第三常数；
    在所述时隙内执行无线通信还包括：在所述GP内末尾的预设时间段上向所述网络设备发送或从所述终端接收不影响所述上行数据通信的上行信息。
  20. 一种通信设备，其特征在于，包括：
    处理器，用于根据网络设备与终端之间的通信状况，确定时隙中保护间隔GP的长度，所述时隙包括：下行通信时间段、所述GP和上行通信时间段，其中所述GP的长度可变且所述GP用于隔离所述下行通信时间段和所述上行通信时间段；
    收发机，用于在所述时隙内执行无线通信，所述无线通信包括：在所述下行通信时间段执行下行通信，以及在所述上行通信时间段执行上行通信；其中，
    所述通信状况包括如下至少一项：所述终端的上下行切换能力、所述下行通信的数据块大小、所述下行通信与所述上行通信之间的定时关系。
  21. 根据权利要求20所述的通信设备，其特征在于，所述时隙的长度是第一常数。
  22. 根据权利要求21所述的通信设备，其特征在于，所述下行通信时间段的长度随所述GP的长度增加而减少或随所述GP的长度减少而增加。
  23. 根据权利要求22所述的通信设备，其特征在于，所述下行通信时间段的长度与所述GP的长度之和是第二常数。
  24. 根据权利要求21所述的通信设备，其特征在于，所述上行通信时间段的长度随所述GP的长度增加而减少或随所述GP的长度减少而增加。
  25. 根据权利要求24所述的通信设备，其特征在于，所述上行通信时间段的长度与所述GP的长度之和是第三常数。
  26. 根据权利要求20至25中任一项所述的通信设备，其特征在于，所述通信状况包括所述上下行切换能力；
    所述收发机，还用于接收所述终端上报的所述上下行切换能力，或者，向所述网络设备上报所述上下行切换能力。
  27. 根据权利要求26所述的通信设备，其特征在于，所述上下行切换能力指示上下行切换所需时间；所述GP的长度随所述上下行切换所需时间的增加而减少或随所述上下行切换所需时间的减少而增加。
  28. 根据权利要求20至25中任一项所述的通信设备，其特征在于，所述通信状况包括所述数据块大小，所述下行通信包括下行数据块通信，所述上行通信包括所述下行数据块通信的确认信息；其中，
    所述GP的长度随所述数据块大小的增加而减少或随所述数据块大小的减少而增加。
  29. 根据权利要求28所述的通信设备，其特征在于，当所述数据块大小大于预设通信块阈值时，确定所述GP的长度为第一长度；
    当所述数据块大小小于或等于所述预设通信块阈值时，确定所述GP的长度为第二长度；
    所述第一长度大于所述第二长度。
  30. 根据权利要求20至25中任一项所述的通信设备，其特征在于，所述定时关系指示所述上行通信距所述下行通信的间隔时长；其中，
    所述GP的长度随所述间隔时长增加而减少或随所述间隔时长减少而增加。
  31. 根据权利要求30所述的通信设备，其特征在于，当所述间隔时长小于预设定时关系阈值时，确定所述GP的长度为第一长度；
    当所述间隔时长大于或等于所述定时关系阈值时，确定所述GP的长度为第二长度；
    所述第一长度大于所述第二长度。
  32. 根据权利要求20至25中任一项所述的通信设备，其特征在于，所述定时关系指示所述上行通信和所述下行通信是否均包括在所述时隙内；
    当所述定时关系指示所述上行通信和所述下行通信均包括在所述时隙内，确定所述GP的长度为第一长度；
    当所述定时关系指示所述上行通信和所述下行通信并未均包括在所述时隙内，确定所述GP的长度为第二长度；
    所述第一长度大于所述第二长度。
  33. 根据权利要求30至32中任一项所述的通信设备，其特征在于，所述下行通信包 括下行数据块通信，所述上行通信包括所述下行数据块通信的确认信息。
  34. 根据权利要求28或29或33所述的通信设备，其特征在于，所述时隙的长度是第一常数，所述下行通信时间段的长度与所述GP的长度之和是第二常数；
    所述收发机，还用于在所述GP内起始的预设时间段上向所述终端发送与所述确认信息无关的下行信息，或者，从所述网络设备接收与所述确认信息无关的下行信息。
  35. 根据权利要求28或29或33所述的通信设备，其特征在于，所述时隙的长度是第一常数，所述上行通信时间段的长度与所述GP的长度之和是第三常数；
    所述收发机，还用于在所述GP内末尾的预设时间段上向所述网络设备发送除所述确认信息外的上行信息，或者，从所述终端接收除所述确认信息外的上行信息。
  36. 根据权利要求30至32中任一项所述的通信设备，其特征在于，所述下行通信包括上行授权，所述上行通信包括上行数据。
  37. 根据权利要求36所述的通信设备，其特征在于，所述时隙的长度是第一常数，所述下行通信时间段的长度与所述GP的长度之和是第二常数；
    所述收发机，还用于在所述GP内起始的预设时间段上向所述终端发送不影响所述上行数据通信的下行信息，或者，从所述网络设备接收不影响所述上行数据通信的下行信息。
  38. 根据权利要求36所述的通信设备，其特征在于，所述时隙的长度是第一常数，所述上行通信时间段的长度与所述GP的长度之和是第三常数；
    所述收发机，还用于在所述GP内末尾的预设时间段上向所述网络设备发送不影响所述上行数据通信的上行信息，或者，从所述终端接收不影响所述上行数据通信的上行信息。
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