WO2018201338A1 - Procédé et dispositif de communication - Google Patents

Procédé et dispositif de communication 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
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PCT/CN2017/082890
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English (en)
Chinese (zh)
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.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2017/082890 priority Critical patent/WO2018201338A1/fr
Priority to CN201780067631.7A priority patent/CN109891844B/zh
Publication of WO2018201338A1 publication Critical patent/WO2018201338A1/fr

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    • 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

Selon certains modes de réalisation, la présente invention concerne un procédé et un dispositif de communication. Ledit procédé consiste à : déterminer la longueur d'un GP dans un intervalle selon la condition de communication entre un dispositif de réseau et un terminal, l'intervalle comprenant une période de temps de communication de liaison descendante, le GP et une période de temps de communication de liaison montante, la longueur du GP étant variable et le GP étant utilisé pour séparer la période de temps de communication de liaison descendante et la période de temps de communication de liaison montante ; la mise en oeuvre d'une communication sans fil à l'intérieur de l'intervalle, la communication sans fil comprenant la mise en oeuvre d'une communication de liaison descendante dans la période de temps de communication de liaison descendante, et la mise en oeuvre d'une communication de liaison montante dans la période de temps de communication de liaison montante ; la condition de communication comprenant au moins un des éléments suivants : la capacité de commutation de liaison montante-liaison descendante du terminal, la taille de blocs de données de la communication de liaison descendante, la relation de synchronisation entre la communication de liaison descendante et la communication de liaison montante. L'invention évite le gaspillage de ressources, et améliore l'efficacité d'utilisation des ressources.
PCT/CN2017/082890 2017-05-03 2017-05-03 Procédé et dispositif de communication WO2018201338A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/CN2017/082890 WO2018201338A1 (fr) 2017-05-03 2017-05-03 Procédé et dispositif de communication
CN201780067631.7A CN109891844B (zh) 2017-05-03 2017-05-03 通信方法和设备

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Application Number Priority Date Filing Date Title
PCT/CN2017/082890 WO2018201338A1 (fr) 2017-05-03 2017-05-03 Procédé et dispositif de communication

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