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WO2018098762A1 - Procédé de transmission d'informations, station de base et appareil terminal - Google Patents

Procédé de transmission d'informations, station de base et appareil terminal Download PDF

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Publication number
WO2018098762A1
WO2018098762A1 PCT/CN2016/108163 CN2016108163W WO2018098762A1 WO 2018098762 A1 WO2018098762 A1 WO 2018098762A1 CN 2016108163 W CN2016108163 W CN 2016108163W WO 2018098762 A1 WO2018098762 A1 WO 2018098762A1
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WO
WIPO (PCT)
Prior art keywords
tti
terminal device
base station
uplink
source terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/108163
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English (en)
Chinese (zh)
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WO2018098762A9 (fr
Inventor
张彦
吴从海
周平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to PCT/CN2016/108163 priority Critical patent/WO2018098762A1/fr
Priority to CN201680090044.5A priority patent/CN109906646B/zh
Publication of WO2018098762A1 publication Critical patent/WO2018098762A1/fr
Anticipated expiration legal-status Critical
Publication of WO2018098762A9 publication Critical patent/WO2018098762A9/fr
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the embodiments of the present invention relate to communication technologies, and in particular, to an information transmission method, a base station, and a terminal device.
  • 5th generation (5 th Generation, referred 5G) communication system is committed to supporting higher system performance, type of business is also diversified.
  • delay-sensitive services such as car networking, robots and other scenarios have very strict requirements on the delay and reliability of end-to-end transmission.
  • the delay sensitive service may be referred to as an Ultra-Reliable and Low Latency Communications (URLLC) service.
  • URLLC Ultra-Reliable and Low Latency Communications
  • the terminal device in order to avoid waste of resources, the terminal device usually does not allocate uplink resources to the terminal device without uplink data transmission.
  • the source terminal device needs to send a scheduling request (Scheduling Request, SR for short) to the base station before the source terminal device transmits the data to the target terminal device, so that the base station allocates a buffer status request (BSR) uplink to the terminal device.
  • SR scheduling request
  • the source terminal device sends a BSR to the base station according to the uplink resource of the BSR, so that the base station determines, according to the BSR, the amount of data to be transmitted by the source terminal device, and then allocates uplink resources for the source terminal device according to the amount of data to be transmitted.
  • the source terminal device may transmit the uplink data through the data channel according to the uplink resource of the uplink data, and then the base station transmits the uplink data to the target terminal device to implement the point between the source terminal device and the target terminal device. Data transfer to Point To Point.
  • the source terminal device needs to request the uplink resource from the base station before transmitting the data to the target terminal device, and the SR and the BSR for requesting the uplink resource are all sent through the control channel, which is caused by the source terminal device and the target terminal.
  • the data transmission time between points to Point (Point To Point) is large.
  • the embodiments of the present invention provide an information transmission method, a base station, and a terminal device, to solve the problem of shortening the transmission delay.
  • an embodiment of the present invention provides an information transmission method, including:
  • the source terminal device sends the first uplink information including the amount of data to be transmitted in the second TTI and the transmission data of the first TTI to the base station in the first transmission time interval TTI;
  • the source terminal device receives the uplink resource information corresponding to the second TTI sent by the base station; the uplink resource corresponding to the second TTI is an uplink resource allocated by the base station to the source terminal device according to the amount of data to be transmitted in the second TTI. ;
  • the source terminal device sends the second uplink information to the base station in the second TTI according to the uplink resource corresponding to the second TTI; the second uplink information includes: the second TTI transmission data.
  • the information transmission method enables the base station to acquire the amount of data to be transmitted by the second TTI in time, and then perform uplink resource allocation, thereby effectively reducing uplink resource allocation delay between the source terminal device and the base station, and reducing the distance between the source terminal device and the base station.
  • the data transmission delay increases the data forwarding efficiency between the source terminal device and the target terminal device, and reduces the P2P data transmission delay between the source terminal device and the target terminal device.
  • the amount of data to be transmitted and the transmission data of the first TTI in the second TTI are carried in the first uplink information sent to the base station in the first TTI, and the amount of data to be transmitted and the current amount of data to be transmitted are implemented.
  • the channel is transmitted without additional transmission of the amount of data to be transmitted in the second TTI through the control channel, which simplifies the coding complexity in the parameter transmission process such as the amount of data to be transmitted, and avoids the use of the complex control channel to the BSR medium.
  • the access control control element (Medium Access Control Element) carries the configuration of parameters such as the amount of data to be data and the complex message parsing of the receiving end, so as to improve the efficiency of the base station to obtain and acquire the amount of data to be transmitted in the second TTI.
  • the method in the case that the first uplink information of the transmission data of the first TTI is sent to the base station, the amount of data to be transmitted in the second TTI is carried in the first uplink information, and the amount of data to be transmitted is implemented.
  • the on-channel transmission with the current amount of transmitted data also improves the utilization of spectrum resources.
  • the first uplink information further includes: an identifier of the destination terminal device, and a transport block TB size of the first TTI;
  • the identifier of the destination terminal device is used to enable the base station to determine the target terminal device
  • the TB size of the first TTI is used to allocate the downlink resource corresponding to the first TTI to the target terminal device, and the downlink resource corresponding to the first TTI is in the first TTI.
  • the target terminal device transmits the transmission data of the first TTI.
  • the identifier of the target device is included in the first uplink information, so that the base station can learn the target terminal device in advance without additional indication by the source terminal device, which effectively reduces the data transmission delay between the source terminal device and the target terminal device.
  • the identifier of the destination terminal device, the amount of data to be transmitted in the second TTI, and the TB size of the first TTI are preset in the first symbol in the time-frequency resource corresponding to the first uplink information. Time-frequency position.
  • the amount of data to be transmitted in the second TTI, and the TB size in the first TTI may be located in a preset time-frequency position in the first symbol of the uplink resource corresponding to the first TTI.
  • the time-frequency resource corresponding to the first uplink information is an uplink allocated by the source terminal device by the amount of data to be transmitted in the first TTI in the uplink information sent by the base station according to the previous TTI of the first TTI.
  • the time-frequency resource corresponding to the first uplink information is an uplink resource allocated by the base station to the source terminal device according to the buffer status report of the source terminal device and the amount of data to be transmitted in the BSR.
  • the receiving, by the source terminal device, the uplink resource information corresponding to the second TTI sent by the base station, as described above, may include:
  • the source terminal device receives downlink control information DCI that is sent by the base station and includes uplink resource information corresponding to the second TTI.
  • an embodiment of the present invention provides an information transmission method, including:
  • the base station Receiving, by the base station, the first uplink information that is sent by the source terminal device in the first transmission time interval TTI; the first uplink information includes: the amount of data to be transmitted in the second TTI and the transmission data of the first TTI;
  • the base station Assigning, by the base station, the uplink resource corresponding to the second TTI to the source terminal device according to the amount of data to be transmitted in the second TTI;
  • the base station Receiving, by the base station, second uplink information that is sent by the source terminal device according to the uplink resource corresponding to the second TTI in the second TTI; the second uplink information includes: the second TTI transmission data.
  • the first uplink information further includes: an identifier of the destination terminal device, and the first TTI Transport block TB size;
  • the method may further include:
  • the base station sends the transmission data of the first TTI to the target terminal device in the first TTI according to the downlink resource corresponding to the first TTI.
  • the method before the base station sends the transmission data in the first TTI to the target terminal device in the first TTI according to the downlink resource corresponding to the first TTI, the method further includes:
  • the base station sends the downlink resource information corresponding to the first TTI to the target terminal device, where the downlink resource information corresponding to the first TTI is used to determine, by the target terminal device, the downlink resource corresponding to the first TTI, and according to the first TTI
  • the corresponding downlink resource receives the transmission data of the first TTI sent by the base station in the first TTI.
  • the base station In order to enable the target terminal device to know the resource location of the downlink information sent by the base station in time to accurately receive the transmission data of the first TTI sent by the base station, the base station further sends the downlink resource information corresponding to the first TTI to the target terminal device.
  • the identifier of the destination terminal device, the amount of data to be transmitted in the second TTI, and the TB size in the first TTI are preset in the first symbol in the uplink resource corresponding to the first TTI. Frequency position.
  • the method may further include:
  • the base station allocates an uplink resource corresponding to the first TTI to the source terminal device
  • the base station sends the uplink resource information corresponding to the first TTI to the source terminal device, where the uplink resource information corresponding to the first TTI is used to determine the uplink resource corresponding to the first TTI, and the first TTI is Corresponding uplink resources.
  • the base station allocates the uplink resource corresponding to the first TTI to the source terminal device, including:
  • the base station allocates the uplink resource corresponding to the first TTI to the source terminal device according to the amount of data to be transmitted in the first TTI in the uplink information sent by the previous TTI of the first TTI; or
  • the base station allocates the uplink resource corresponding to the first TTI to the source terminal device according to the amount of data to be transmitted in the BSR reported by the source terminal device.
  • the sending, by the base station, the uplink resource information corresponding to the second TTI to the source terminal device, as described above, includes:
  • the base station sends downlink control information DCI to the source terminal device; the DCI includes uplink resource information corresponding to the second TTI.
  • an information transmission apparatus including:
  • a sending module configured to send to the base station, in a first transmission time interval TTI, first uplink information that includes an amount of data to be transmitted in the second TTI and transmission data of the first TTI;
  • the receiving module is configured to receive uplink resource information corresponding to the second TTI sent by the base station, where the uplink resource corresponding to the second TTI is an uplink resource allocated by the base station to the source terminal device according to the amount of data to be transmitted in the second TTI. ;
  • the sending module is further configured to: send the second uplink information to the base station in the second TTI according to the uplink resource corresponding to the second TTI; the second uplink information includes: the second TTI transmission data.
  • the first uplink information further includes: an identifier of the destination terminal device, and a transport block TB size of the first TTI;
  • the identifier of the destination terminal device is used to enable the base station to determine the target terminal device
  • the TB size of the first TTI is used to enable the base station to allocate the downlink resource corresponding to the first TTI to the target terminal device, and send the first to the target terminal device in the first TTI according to the downlink resource corresponding to the first TTI.
  • a TTI transmits data.
  • the identifier of the destination terminal device, the amount of data to be transmitted in the second TTI, and the TB size of the first TTI are preset in the first symbol in the time-frequency resource corresponding to the first uplink information. Time-frequency position.
  • the time-frequency resource corresponding to the first uplink information is an uplink allocated by the source terminal device by the amount of data to be transmitted in the first TTI in the uplink information sent by the base station according to the previous TTI of the first TTI.
  • the time-frequency resource corresponding to the first uplink information is an uplink resource allocated by the base station to the source terminal device according to the buffer status report of the source terminal device and the amount of data to be transmitted in the BSR.
  • the receiving module is configured to receive downlink control information DCI that is sent by the base station and includes uplink resource information corresponding to the second TTI.
  • an information transmission apparatus including:
  • the receiving module is configured to receive the first uplink information that is sent by the source terminal device in the first transmission time interval TTI; the first uplink information includes: the amount of data to be transmitted in the second TTI and the transmission data of the first TTI;
  • a processing module configured to allocate an uplink resource corresponding to the second TTI to the source terminal device according to the amount of data to be transmitted in the second TTI;
  • a sending module configured to send uplink resource information corresponding to the second TTI to the source terminal device
  • the receiving module is further configured to receive second uplink information that is sent by the source terminal device according to the uplink resource corresponding to the second TTI in the second TTI, where the second uplink information includes: the second TTI transmission data.
  • the first uplink information further includes: an identifier of the destination terminal device, and a transport block TB size of the first TTI;
  • the processing module is further configured to determine the target terminal device according to the identifier of the target terminal device, and allocate the downlink resource corresponding to the first TTI to the target terminal device according to the TB size of the first TTI;
  • the sending module is further configured to send the transmission data of the first TTI to the target terminal device in the first TTI according to the downlink resource corresponding to the first TTI.
  • the sending module is further configured to send the downlink resource information corresponding to the first TTI to the target terminal device, where the downlink resource information corresponding to the first TTI is used to determine, by the target terminal device, the downlink corresponding to the first TTI. And receiving, according to the downlink resource corresponding to the first TTI, the transmission data of the first TTI sent by the base station in the first TTI.
  • the identifier of the destination terminal device, the amount of data to be transmitted in the second TTI, and the TB size in the first TTI are preset in the first symbol in the uplink resource corresponding to the first TTI. Frequency position.
  • the processing module is further configured to allocate the uplink resource corresponding to the first TTI to the source terminal device;
  • the sending module is further configured to send the uplink resource information corresponding to the first TTI to the source terminal device, where the uplink resource information corresponding to the first TTI is used to determine, by the source terminal device, the uplink resource corresponding to the first TTI, and The uplink resource corresponding to the first TTI.
  • the processing module is configured to allocate the first TTI corresponding to the source terminal device according to the amount of data to be transmitted in the first TTI in the uplink information sent by the previous TTI of the first TTI.
  • the uplink resource corresponding to the first TTI is allocated to the source terminal device according to the amount of data to be transmitted in the BSR reported by the source terminal device.
  • the sending module is configured to send downlink control information DCI to the source terminal device, where the DCI includes uplink resource information corresponding to the second TTI.
  • the embodiment of the present invention may further provide a terminal device, including: a transmitter and a receiver;
  • the transmitter is configured to send the first uplink information to the base station in the first transmission time interval TTI;
  • the first uplink information includes: the amount of data to be transmitted in the second TTI and the transmission data of the first TTI;
  • the receiver is configured to receive the uplink resource information corresponding to the second TTI sent by the base station; the uplink resource corresponding to the second TTI is an uplink resource allocated by the base station to the source terminal device according to the amount of data to be transmitted in the second TTI. ;
  • the transmitter is further configured to send the second uplink information to the base station in the second TTI according to the uplink resource corresponding to the second TTI; the second uplink information includes: the transmission data of the second TTI.
  • the first uplink information further includes: an identifier of the destination terminal device, and a transport block TB size of the first TTI;
  • the identifier of the destination terminal device is used to enable the base station to determine the target terminal device
  • the TB size of the first TTI is used to enable the base station to allocate the downlink resource corresponding to the first TTI to the target terminal device, and send the first to the target terminal device in the first TTI according to the downlink resource corresponding to the first TTI.
  • a TTI transmits data.
  • the identifier of the destination terminal device, the amount of data to be transmitted in the second TTI, and the TB size of the first TTI are preset in the first symbol in the time-frequency resource corresponding to the first uplink information. Time-frequency position.
  • the time-frequency resource corresponding to the first uplink information is an uplink allocated by the source terminal device by the amount of data to be transmitted in the first TTI in the uplink information sent by the base station according to the previous TTI of the first TTI.
  • the time-frequency resource corresponding to the first uplink information is an uplink resource allocated by the base station to the source terminal device according to the buffer status report of the source terminal device and the amount of data to be transmitted in the BSR.
  • the receiver is specifically configured to receive downlink control information DCI sent by the base station; the DCI The uplink resource information corresponding to the second TTI is included.
  • the embodiment of the present invention may further provide a base station, including: a receiver, a processor, and a transmitter; and the receiver and the transmitter are respectively connected to the processor;
  • a receiver configured to receive first uplink information that is sent by the source terminal device in the first transmission time interval TTI; the first uplink information includes: an amount of data to be transmitted in the second TTI and transmission data of the first TTI;
  • a processor configured to allocate an uplink resource corresponding to the second TTI to the source terminal device according to the amount of data to be transmitted in the second TTI;
  • the transmitter is configured to send uplink resource information corresponding to the second TTI to the source terminal device;
  • the receiver is further configured to receive second uplink information that is sent by the source terminal device in the second TTI according to the uplink resource corresponding to the second TTI, where the second uplink information includes: the second TTI transmission data.
  • the first uplink information further includes: an identifier of the destination terminal device, and a transport block TB size of the first TTI;
  • the processor is further configured to determine the target terminal device according to the identifier of the target terminal device, and allocate, according to the TB size of the first TTI, the downlink resource corresponding to the first TTI to the target terminal device;
  • the transmitter is further configured to send the transmission data of the first TTI to the target terminal device in the first TTI according to the downlink resource corresponding to the first TTI.
  • the transmitter is further configured to send the downlink resource information corresponding to the first TTI to the target terminal device, where the downlink resource information corresponding to the first TTI is used to determine, by the target terminal device, the downlink corresponding to the first TTI. And receiving, according to the downlink resource corresponding to the first TTI, the transmission data of the first TTI sent by the base station in the first TTI.
  • the identifier of the terminal device, the amount of data to be transmitted in the second TTI, and the TB size in the first TTI are in a preset time-frequency in the first symbol in the uplink resource corresponding to the first TTI. position.
  • the processor is further configured to allocate the uplink resource corresponding to the first TTI to the source terminal device;
  • the transmitter is further configured to send the uplink resource information corresponding to the first TTI to the source terminal device, where the uplink resource information corresponding to the first TTI is used to determine, by the source terminal device, the first TTI The uplink resource and the uplink resource corresponding to the first TTI.
  • the processor is configured to allocate the uplink resource corresponding to the first TTI to the source terminal device according to the amount of data to be transmitted in the first TTI in the uplink information sent by the previous TTI of the first TTI. Or, according to the buffer status report sent by the source terminal device, the amount of data to be transmitted in the BSR is used to allocate the uplink resource corresponding to the first TTI to the source terminal device.
  • the transmitter is configured to send downlink control information DCI to the source terminal device, where the DCI includes uplink resource information corresponding to the second TTI.
  • the embodiment of the present invention further provides a computer program product, the computer program product comprising program code corresponding to any information transmission method provided by the first aspect of the embodiment of the present invention.
  • the embodiment of the present invention further provides a computer program product, the computer program product comprising program code corresponding to any information transmission method provided by the second aspect of the embodiment of the present invention.
  • the embodiment of the present invention further provides a storage medium, where the storage medium is used to store a computer program product, the computer program product comprising: program code, the program code may include the first method for performing the foregoing embodiment of the present invention.
  • the program code corresponding to any information transmission method provided by the aspect.
  • an embodiment of the present invention further provides a storage medium, where the storage medium is used to store a computer program product, where the computer program product includes: program code, where the program code may include a second method for performing the foregoing embodiment of the present invention.
  • the program code corresponding to any information transmission method provided by the aspect.
  • the information transmission method, the base station, and the terminal device provided by the embodiment of the present invention, wherein, when the source terminal device sends the first uplink information including the transmission data of the first TTI to the base station in the first TTI, the data to be transmitted in the second TTI
  • the quantity is also carried in the first uplink information, so that the base station can obtain the data to be transmitted in the second TTI in time while acquiring the transmission data of the first TTI sent by the source terminal device, so that the base station can be based on
  • the amount of data to be transmitted in the second TTI is that the source terminal device allocates the uplink resource of the second TTI, and sends the uplink resource information corresponding to the second TTI to the source terminal device, so that the source terminal device according to the first
  • the uplink resource corresponding to the second TTI, in the second TTI the base station sends the second uplink information including the transmission data of the second TTI.
  • the information transmission method the source terminal device does not need to pass through the control channel before transmitting data to the base station in each TTI
  • the base station requests the uplink resource, and the amount of data to be transmitted by the second TTI is sent to the base station by using the uplink information, so that the base station acquires the data volume to be transmitted by the second TTI in time, and then performs uplink resource allocation, thereby effectively reducing the source terminal device and the base station.
  • the uplink resource allocation delay reduces the data transmission delay between the source terminal device and the base station, and then improves the data forwarding efficiency between the source terminal device and the target terminal device, and reduces the between the source terminal device and the target terminal device. P2P data transmission delay.
  • FIG. 1 is a schematic structural diagram of a network system to which each information transmission method is applied according to an embodiment of the present invention
  • Embodiment 3 is a flowchart of an information transmission method according to Embodiment 2 of the present invention.
  • FIG. 4 is a schematic structural diagram of a radio frame in which first uplink information is located according to Embodiment 2 of the present invention
  • FIG. 5 is a schematic diagram of a format of a target terminal device, an amount of data to be transmitted in the second TTI, and a TB size of the first TTI in the first uplink information according to Embodiment 2 of the present invention
  • FIG. 6 is a flowchart of another information transmission method according to Embodiment 2 of the present invention.
  • FIG. 7 is a flowchart of an information transmission apparatus according to Embodiment 3 of the present invention.
  • FIG. 8 is a flowchart of an information transmission apparatus according to Embodiment 4 of the present invention.
  • FIG. 9 is a schematic structural diagram of a terminal device according to Embodiment 5 of the present invention.
  • FIG. 10 is a schematic structural diagram of a computer program product according to Embodiment 5 of the present invention.
  • FIG. 11 is a schematic structural diagram of a storage medium according to Embodiment 5 of the present invention.
  • FIG. 12 is a schematic structural diagram of a base station according to Embodiment 6 of the present invention.
  • FIG. 13 is a schematic structural diagram of a computer program product according to Embodiment 6 of the present invention.
  • FIG. 14 is a schematic structural diagram of a storage medium according to Embodiment 6 of the present invention.
  • FIG. 1 is a schematic structural diagram of a network system to which each information transmission method is applied according to an embodiment of the present invention.
  • the connection in the network system The incoming network may include at least one base station, and the core network may include at least one core network device.
  • the core network device can establish a connection with each base station through S1, and the connection between the adjacent base stations can be established through X2.
  • the terminal device can be directly connected to the core network device through a base station, or can be connected to the core network through multiple base stations in sequence.
  • the core network device may include: a Mobility Management Entity (MME) and/or a Serving GateWay (SGW).
  • MME Mobility Management Entity
  • SGW Serving GateWay
  • the base station can be responsible for maintaining the wireless link with the terminal device, maintaining the wireless link with the terminal device, and being responsible for the physical layer data and the Internet protocol of the wireless link data such as air interface transmission ( Internet protocol, referred to as IP) data conversion between the above business data.
  • IP Internet protocol, referred to as IP
  • the base station is also responsible for radio resource management with the terminal device, such as establishment and release of a radio link with the terminal device, scheduling and allocation of radio resources, and the like.
  • the base station is also responsible for part of the mobility management function, including configuring the terminal device to enable the terminal device to perform measurement of the physical channel, evaluate the quality of the wireless link between the terminal device, and decide to switch the terminal device between different cells.
  • a terminal device in the network system can establish a connection with another terminal device through the base station, and realize point-to-point data transmission.
  • the terminal device may be a terminal of an LTE communication technology, a 5G communication technology, or a subsequent more advanced communication technology; each base station may be an LTE communication technology, a 5G communication technology, or a subsequent more advanced communication technology.
  • Base station equipment may be an LTE communication technology, a 5G communication technology, or a subsequent more advanced communication technology.
  • the terminal device may be a wireless terminal or a wired terminal.
  • the wireless terminal can be a device that provides voice and/or data connectivity to the user, a handheld device with wireless connectivity, or other processing device that is connected to the wireless modem.
  • the wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN).
  • RAN Radio Access Network
  • the wireless terminal can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, for example, a portable, pocket, handheld, computer built-in or in-vehicle mobile device that is wireless with The access network exchanges languages and/or data.
  • a wireless terminal may also be called a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile, a Remote Station, an Access Point, and a Remote Terminal.
  • Remote Terminal access terminal
  • User Terminal User Agent
  • User Device User Equipment
  • the base station is also called an access point (AP).
  • the base station described in the present application is a form of a radio station, and refers to a radio transceiver station that transmits information between a mobile communication switching center and a mobile telephone terminal in a certain radio coverage area; or may be a finger joint A device in the network that communicates with a wireless terminal over one or more sectors over an air interface.
  • the base station can be used to convert the received air frame with an Internet Protocol (IP) packet as a router between the wireless terminal and the rest of the access network, wherein the rest of the access network can include an internet protocol. (IP) network.
  • IP Internet Protocol
  • the base station can also coordinate attribute management of the air interface.
  • the base station may be a Base Transceiver Station (BTS), a Node Base (NodeB), or an evolutional Node B (eNB), and is not limited in this application.
  • BTS Base Transceiver Station
  • NodeB Node Base
  • eNB evolutional Node B
  • the source terminal device transmits the first uplink information including the transmission data of the first TTI to the base station in the first transmission time interval (TTI)
  • TTI transmission time interval
  • the amount of data to be transmitted in the second TTI is also carried in the first uplink information, so that the base station can obtain the transmission data of the first TTI sent by the source terminal device, if the first uplink information is received
  • the source terminal device may be allocated an uplink resource of the source terminal device in the second TTI according to the amount of data to be transmitted in the second TTI, and the uplink resource information corresponding to the second TTI may be sent to the source terminal device.
  • the source terminal device does not need to request uplink resources from the base station through the control channel before transmitting data to the base station in each TTI, thereby effectively reducing data transmission delay between the source terminal device and the base station, and improving The data forwarding efficiency between the source terminal device and the target terminal device by the base station reduces the P2P data transmission delay between the source terminal device and the target terminal device.
  • Embodiment 1 of the present invention provides an information transmission method.
  • FIG. 2 is a flowchart of an information transmission method according to Embodiment 1 of the present invention. As shown in FIG. 2, the method can include:
  • the source terminal device sends the first uplink information to the base station in the first TTI.
  • the first uplink information includes: the transmission data of the first TTI and the amount of data to be transmitted in the second TTI.
  • the source terminal device may send the first uplink information to the base station by using a Physical Uplink Shared Channel (PUSCH) in the first TTI.
  • the first TTI may be any one of any radio frame sent by the source terminal device to the base station.
  • the one radio frame includes: subframe 0, subframe 1 ... 10 subframes of subframe 9.
  • the first TTI may be any subframe between subframe 0 and subframe 9.
  • the transmission data of the first TTI may be uplink service data that is sent by the source terminal to the base station in the first TTI.
  • the first uplink information includes the transmission data of the first TTI, and thus the first uplink information may also be referred to as uplink information of the first TTI.
  • the base station allocates an uplink resource corresponding to the second TTI to the source terminal device according to the amount of data to be transmitted in the second TTI.
  • the base station may be an uplink resource allocated to another terminal device according to the amount of data to be transmitted in the second TTI, and the source terminal device is allocated enough to transmit the second TTI from the total time-frequency resource corresponding to the base station.
  • the time-frequency resource of the uplink information of the transmitted data amount is used as the uplink resource corresponding to the source terminal device in the second TTI. That is, the uplink resource corresponding to the second TTI may be a time-frequency resource allocated by the base station to the source terminal device for transmitting uplink information in the second TTI.
  • the base station may further allocate the uplink resource corresponding to the second TTI to the source terminal device according to the amount of data to be transmitted in the second TTI.
  • the base station sends the uplink resource information corresponding to the second TTI to the source terminal device.
  • the uplink resource information corresponding to the second TTI is, for example, a physical resource block (Physical Resource Block, referred to as a PRB identifier, and an uplink block resource block (Resource Block) corresponding to the second TTI corresponding to the second TTI.
  • a physical resource block Physical Resource Block
  • Resource Block Resource Block
  • At least one type of information such as an identifier of the RB
  • a symbol identifier of the uplink resource corresponding to the second TTI is, for example, a physical resource block (Physical Resource Block, referred to as a PRB identifier, and an uplink block resource block (Resource Block) corresponding to the second TTI.
  • At least one type of information such as an identifier of the RB
  • a symbol identifier of the uplink resource corresponding to the second TTI such as an identifier of the RB
  • the base station may send the uplink resource information corresponding to the second TTI to the source terminal device by using the downlink control channel.
  • the downlink control channel may be, for example, a Physical Downlink Control Channel (PDCCH).
  • the source terminal device sends the second uplink information to the base station in the second TTI according to the uplink resource corresponding to the second TTI.
  • the second uplink information includes: the second TTI transmission data.
  • the source terminal device may determine, according to the uplink resource information corresponding to the second TTI, the uplink resource corresponding to the second TTI, and according to the uplink resource corresponding to the second TTI, Transmitting, by the second TTI, the second uplink information including the transmission data of the second TTI to the base station.
  • the transmission data of the second TTI may be uplink service data that is sent by the source terminal to the base station in the second TTI.
  • the source terminal device when the source terminal device sends the first uplink information including the transmission data of the first TTI to the base station in the first TTI, the amount of data to be transmitted in the second TTI is also carried in the In the first uplink information, the base station can obtain the data to be transmitted in the second TTI in time, and obtain the data of the first TTI to be transmitted in the second TTI, so that the base station can be based on the second TTI.
  • the amount of data to be transmitted is allocated to the source terminal device by the uplink resource of the second TTI, and the uplink resource information corresponding to the second TTI is sent to the source terminal device, so that the source terminal device corresponds to the second TTI.
  • the uplink resource sends the second uplink information including the transmission data of the second TTI in the second TTI.
  • the source terminal device does not need to request the uplink resource from the base station through the control channel before sending the data to the base station in each TTI, and sends the second TTI to be transmitted to the base station through the uplink information, so that the base station can obtain the first time in time.
  • the amount of data to be transmitted by the second TTI is then allocated to the uplink resource, which effectively reduces the uplink resource allocation delay between the source terminal device and the base station, reduces the data transmission delay between the source terminal device and the base station, and then improves the base station to the source terminal.
  • the data forwarding efficiency between the device and the target terminal device reduces the P2P data transmission delay between the source terminal device and the target terminal device.
  • the amount of data to be transmitted and the transmission data of the first TTI in the second TTI are carried in the first uplink information sent to the base station in the first TTI, and the amount of data to be transmitted and the current amount of data to be transmitted are implemented.
  • the channel is transmitted without additional transmission of the amount of data to be transmitted in the second TTI through the control channel, which simplifies the coding complexity in the parameter transmission process such as the amount of data to be transmitted, and avoids the use of the complex control channel to the BSR medium.
  • the access control control element (Medium Access Control Element) carries the configuration of parameters such as the amount of data to be data and the complex message parsing of the receiving end, so as to improve the efficiency of the base station to obtain and acquire the amount of data to be transmitted in the second TTI.
  • the method in the case that the first uplink information of the transmission data of the first TTI is sent to the base station, the amount of data to be transmitted in the second TTI is carried in the first uplink information, and the amount of data to be transmitted is implemented.
  • the on-channel transmission with the current amount of transmitted data also improves the utilization of spectrum resources.
  • the first uplink information further includes: an identifier of the destination terminal device, A TTI Transmission Block (TB) TB size.
  • TB Transmission Block
  • the TB size of the first TTI can be used to indicate the amount of transmitted data of the first TTI.
  • the second embodiment of the present invention may further provide an information transmission method.
  • FIG. 3 is a flowchart of an information transmission method according to Embodiment 2 of the present invention. As shown in FIG. 3, the method may further include: before, in S204, the source terminal device sends the second uplink information to the base station in the second TTI according to the uplink resource corresponding to the second TTI, the method may further include:
  • the base station determines the target terminal device according to the identifier of the target terminal device.
  • the identifier of the target terminal device can be represented by a Destination User Equipment IDentity (DesUEID).
  • DesUEID Destination User Equipment IDentity
  • the identifier of the target device is included in the first uplink information, so that the base station can learn the target terminal device in advance without additional indication by the source terminal device, which effectively reduces the data transmission delay between the source terminal device and the target terminal device.
  • the base station allocates the downlink resource corresponding to the first TTI to the target terminal device according to the TB size of the first TTI.
  • the base station may determine, according to the size of the TB of the first TTI, the amount of transmission data of the first TTI, and then allocate, according to the amount of transmission data of the first TTI, the target terminal device to receive the base station in the first TTI. Time-frequency resources of downlink information sent.
  • the base station determines, in advance, the amount of data to be forwarded to the target terminal device for the target terminal device, so that the base station performs uplink scheduling on the source terminal device.
  • Preparing for the downlink scheduling of the target terminal device that is, the base station allocates downlink resources to the target terminal device in advance, thereby effectively reducing the time for the base station to allocate downlink resources to the target terminal device, and reducing the between the source terminal device and the target terminal device.
  • Data transmission delay is included in the base station determines, in advance, the amount of data to be forwarded to the target terminal device for the target terminal device, so that the base station performs uplink scheduling on the source terminal device.
  • the base station sends, according to the downlink resource corresponding to the first TTI, the transmission data of the first TTI to the target terminal device in the first TTI.
  • the base station may send the first downlink of the transmission data including the first TTI to the target terminal device by using a physical downlink shared channel (PDSCH) in the first TTI according to the downlink resource corresponding to the first TTI.
  • PDSCH physical downlink shared channel
  • the method before the sending, by the base station, the transmission data of the first TTI to the target terminal device in the first TTI according to the downlink resource corresponding to the first TTI, the method further includes:
  • the base station sends the downlink resource information corresponding to the first TTI to the target terminal device.
  • the downlink resource information corresponding to the first TTI may be, for example, a downlink resource corresponding to the first TTI. At least one type of information such as an identifier of the physical resource block PRB, an identifier of the PRB of the downlink resource corresponding to the first TTI, and a symbol identifier of the downlink resource corresponding to the first TTI.
  • the base station may send downlink resource information corresponding to the first TTI to the target terminal device by using a downlink control channel.
  • the downlink control channel may be, for example, a PDCCH.
  • the target terminal device determines, according to the downlink resource information corresponding to the first TTI, the downlink resource corresponding to the first TTI.
  • the base station In order to enable the target terminal device to know the resource location of the downlink information sent by the base station in time to accurately receive the transmission data of the first TTI sent by the base station, the base station further sends the downlink resource information corresponding to the first TTI to the target terminal device.
  • the identifier of the destination terminal device, the amount of data to be transmitted in the second TTI, and the TB size in the first TTI are located in the first symbol in the uplink resource corresponding to the first TTI.
  • the default time-frequency position is located in the first symbol in the uplink resource corresponding to the first TTI.
  • the preset time-frequency position in the first symbol may be, for example, in the first symbol, starting with a starting resource location corresponding to the source terminal device, and offsetting a preset number of resource locations.
  • the amount of data to be transmitted in the second TTI, and the TB size in the first TTI may be located in a preset time-frequency position in the first symbol of the uplink resource corresponding to the first TTI.
  • FIG. 4 is a schematic structural diagram of a radio frame in which first uplink information is located according to Embodiment 2 of the present invention.
  • a radio frame includes: 10 subframes from subframe 0 to subframe 9
  • the source terminal device may be the first in the subframe 9.
  • the first uplink information is sent to the base station on the uplink resource corresponding to the TTI.
  • the first symbol in the uplink resource corresponding to the first TTI may be, for example, the symbol 0 in the subframe 0 shown in FIG.
  • the time-frequency resource corresponding to the symbol 0 in the subframe 0 of the source terminal device includes: a resource block 5, a resource block 6, a resource block 7, a resource block 8, and a resource block 9.
  • the identifier of the destination terminal device in the first uplink information, the amount of data to be transmitted in the second TTI, and the TB size in the first TTI may be used as control information to carry the resource block 6 and the resource block 7 in the symbol 0. in.
  • the transmission data of the first TTI may be carried as data information in the symbol 0, and the resource block 5, the resource block 8 and the resource block 9 may be carried.
  • the information transmission method carries control by using different transport blocks in the uplink resource corresponding to the first TTI.
  • the information and the data information enable the source terminal device to independently encode the control information and the data information, and then the base station can separately decode the control information and the data information in the first uplink information.
  • FIG. 5 is a schematic diagram of a format of a target terminal device, an amount of data to be transmitted in the second TTI, and a TB size of the first TTI in the first uplink information according to Embodiment 2 of the present invention.
  • the identifier of the destination terminal device, the amount of data to be transmitted in the second TTI, and the TB size of the first TTI are carried in the first uplink information, so that the base station can quickly obtain the identifier of the destination terminal device, the first Information such as the amount of data to be transmitted in the second TTI and the TB size of the first TTI, and thus, the identifier of the destination terminal device, the amount of data to be transmitted in the second TTI, and the TB size of the first TTI may be collectively referred to as fast Fast Buffer Status Report (fBSR) information.
  • fBSR Fast Fast Buffer Status Report
  • the identifier of the destination terminal device may be represented as a DesUEID
  • the amount of data to be transmitted in the second TTI may be represented by BSR information
  • the TB size of the first TTI may be represented as Tbsize.
  • the second embodiment of the present invention may further provide an information transmission method.
  • FIG. 6 is a flowchart of another information transmission method according to Embodiment 2 of the present invention. As shown in FIG. 6, the method further includes: before the sending, by the source terminal device, the first uplink information to the base station in the first TTI in the S201 as described above, the method further includes:
  • the base station allocates an uplink resource corresponding to the first TTI to the source terminal device.
  • the base station allocates the uplink resource corresponding to the first TTI to the source terminal device, including:
  • the base station allocates the uplink resource corresponding to the first TTI to the source terminal device according to the amount of data to be transmitted in the first TTI in the uplink information sent by the previous TTI of the first TTI; or
  • the base station allocates the uplink resource corresponding to the first TTI to the source terminal device according to the amount of data to be transmitted in the BSR sent by the source terminal device.
  • the source terminal device may send a BSR to the base station, and the base station may allocate the first terminal device according to the amount of data to be transmitted in the BSR.
  • the base The station allocates the uplink resource corresponding to the first TTI to the source terminal device according to the amount of data to be transmitted in the first TTI in the uplink information sent by the previous TTI of the first TTI.
  • the base station sends the uplink resource information corresponding to the first TTI to the source terminal device.
  • the specific process of the uplink resource information corresponding to the first TTI is sent by the base station to the source terminal device, and is similar to the specific process of the uplink resource information corresponding to the second TTI sent by the base station to the source terminal device in the foregoing S203.
  • the specific process of the uplink resource information corresponding to the first TTI is sent by the base station to the source terminal device, and is similar to the specific process of the uplink resource information corresponding to the second TTI sent by the base station to the source terminal device in the foregoing S203.
  • the source terminal device determines, according to the uplink resource information corresponding to the first TTI, an uplink resource corresponding to the first TTI.
  • the sending, by the source terminal device, the first uplink information to the base station in the first TTI may include:
  • the source terminal device sends the first uplink information to the base station according to the first TTI in the uplink resource corresponding to the first TTI.
  • the sending, by the base station, the uplink resource information corresponding to the second TTI to the source terminal device in the foregoing S203 may include:
  • the base station sends downlink control information (Downlink Control Information, DCI for short) to the source terminal device; the DCI includes uplink resource information corresponding to the second TTI.
  • DCI Downlink Control Information
  • the base station may send, by using a PDCCH, a DCI including uplink resource information corresponding to the second TTI to the source terminal device.
  • the base station may also send, by using a PDCCH, a DCI including downlink resource information corresponding to the first TTI to the target terminal device.
  • the base station may also send, by using a PDCCH, a DCI including uplink resource information corresponding to the first TTI to the target terminal device.
  • FIG. 7 is a flowchart of an information transmission apparatus according to Embodiment 3 of the present invention. As shown in FIG. 7, the information transmission device 700 may include:
  • the sending module 701 is configured to send, in the first TTI, the first uplink information including the amount of data to be transmitted in the second TTI and the transmission data of the first TTI to the base station.
  • the receiving module 702 is configured to receive uplink resource information corresponding to the second TTI sent by the base station, where the uplink resource corresponding to the second TTI is an uplink allocated by the base station to the source terminal device according to the amount of data to be transmitted in the second TTI. Resources.
  • the sending module 701 is further configured to: according to the uplink resource corresponding to the second TTI, in the second TTI And transmitting second uplink information to the base station; the second uplink information includes: transmission data of the second TTI.
  • the first uplink information further includes: an identifier of the destination terminal device, a TB size of the first TTI, and an identifier of the destination terminal device, where the base station determines the target terminal device;
  • the TB size of the first TTI is used to enable the base station to allocate the downlink resource corresponding to the first TTI to the target terminal device, and send the first to the target terminal device in the first TTI according to the downlink resource corresponding to the first TTI.
  • a TTI transmits data.
  • the identifier of the destination terminal device, the amount of data to be transmitted in the second TTI, and the TB size of the first TTI are preset in the first symbol in the time-frequency resource corresponding to the first uplink information. Time-frequency position.
  • the time-frequency resource corresponding to the first uplink information is an uplink allocated by the source terminal device by the amount of data to be transmitted in the first TTI in the uplink information sent by the base station according to the previous TTI of the first TTI.
  • the time-frequency resource corresponding to the first uplink information is an uplink resource allocated by the base station to the source terminal device according to the amount of data to be transmitted in the BSR sent by the source terminal device.
  • the receiving module 702 is specifically configured to receive, by the base station, a DCI that includes uplink resource information corresponding to the second TTI.
  • the information transmission device provided in the third embodiment of the present invention can perform any of the information transmission methods performed by the source terminal device described in the foregoing FIG. 1 to FIG. 6 , and the specific implementation process and beneficial effects thereof are described above, and details are not described herein again.
  • Embodiment 4 of the present invention further provides an information transmission apparatus.
  • the information transmission device may be integrated in the base station by software and/or hardware to perform any of the information transmission methods performed by the base station described in the above FIGS. 1 to 6.
  • FIG. 8 is a flowchart of an information transmission apparatus according to Embodiment 4 of the present invention. As shown in FIG. 8, the information transmission device 800 may include:
  • the receiving module 801 is configured to receive first uplink information that is sent by the source terminal device in the first TTI, where the first uplink information includes: the amount of data to be transmitted in the second TTI and the transmission data of the first TTI.
  • the processing module 802 is configured to allocate the uplink resource corresponding to the second TTI to the source terminal device according to the amount of data to be transmitted in the second TTI;
  • the sending module 803 is configured to send uplink resource information corresponding to the second TTI to the source terminal device.
  • the receiving module 801 is further configured to receive second uplink information that is sent by the source terminal device according to the uplink resource corresponding to the second TTI in the second TTI, where the second uplink information includes: the second TTI transmission data.
  • the first uplink information further includes: an identifier of the destination terminal device, and a transport block TB size of the first TTI;
  • the processing module 802 is further configured to determine the target terminal device according to the identifier of the target terminal device, and allocate the downlink resource corresponding to the first TTI to the target terminal device according to the TB size of the first TTI.
  • the sending module 803 is further configured to send, according to the downlink resource corresponding to the first TTI, the transmission data of the first TTI to the target terminal device in the first TTI.
  • the sending module 803 is further configured to send the downlink resource information corresponding to the first TTI to the target terminal device, where the downlink resource information corresponding to the first TTI is used to determine, by the target terminal device, the first TTI. And downlink data, and receiving, according to the downlink resource corresponding to the first TTI, the transmission data of the first TTI sent by the base station in the first TTI.
  • the identifier of the destination terminal device, the amount of data to be transmitted in the second TTI, and the TB size in the first TTI are preset in the first symbol in the uplink resource corresponding to the first TTI. Frequency position.
  • the processing module 802 is further configured to allocate the uplink resource corresponding to the first TTI to the source terminal device.
  • the sending module 803 is further configured to send the uplink resource information corresponding to the first TTI to the source terminal device, where the uplink resource information corresponding to the first TTI is used to determine, by the source terminal device, an uplink resource corresponding to the first TTI, and The uplink resource corresponding to the first TTI.
  • the processing module 802 is configured to allocate the uplink corresponding to the first TTI to the source terminal device according to the amount of data to be transmitted in the first TTI in the uplink information sent by the previous TTI of the first TTI.
  • the uplink resource corresponding to the first TTI is allocated to the source terminal device according to the amount of data to be transmitted in the BSR sent by the source terminal device.
  • the sending module 803 is specifically configured to send the DCI to the source terminal device, where the DCI includes uplink resource information corresponding to the second TTI.
  • the information transmission apparatus provided in Embodiment 4 of the present invention may perform any information transmission method performed by the base station described in FIG. 1 to FIG. 6 , and the specific implementation process and beneficial effects thereof are as follows. I will not repeat them here.
  • Embodiment 5 of the present invention further provides a terminal device.
  • FIG. 9 is a schematic structural diagram of a terminal device according to Embodiment 5 of the present invention. As shown in FIG. 9, the terminal device 900 includes: a transmitter 901 and a receiver 902;
  • the transmitter 901 is configured to send the first uplink information to the base station in the first TTI.
  • the first uplink information includes: the amount of data to be transmitted in the second TTI and the transmission data of the first TTI.
  • the receiver 902 is configured to receive uplink resource information corresponding to the second TTI sent by the base station, where the uplink resource corresponding to the second TTI is an uplink allocated by the base station to the source terminal device according to the amount of data to be transmitted in the second TTI. Resources.
  • the transmitter 901 is further configured to: send the second uplink information to the base station in the second TTI according to the uplink resource corresponding to the second TTI; the second uplink information includes: the transmission data of the second TTI.
  • the first uplink information further includes: an identifier of the destination terminal device, a TB size of the first TTI, and an identifier of the destination terminal device, where the base station determines the target terminal device;
  • the TB size of the first TTI is used to enable the base station to allocate the downlink resource corresponding to the first TTI to the target terminal device, and send the first to the target terminal device in the first TTI according to the downlink resource corresponding to the first TTI.
  • a TTI transmits data.
  • the identifier of the destination terminal device, the amount of data to be transmitted in the second TTI, and the TB size of the first TTI are preset in the first symbol in the time-frequency resource corresponding to the first uplink information. Time-frequency position.
  • the time-frequency resource corresponding to the first uplink information is an uplink allocated by the source terminal device by the amount of data to be transmitted in the first TTI in the uplink information sent by the base station according to the previous TTI of the first TTI.
  • the time-frequency resource corresponding to the first uplink information is an uplink resource allocated by the base station to the source terminal device according to the amount of data to be transmitted in the BSR sent by the source terminal device.
  • the receiver 902 is specifically configured to receive the DCI sent by the base station, where the DCI includes uplink resource information corresponding to the second TTI.
  • FIG. 10 is a schematic structural diagram of a computer program product according to Embodiment 5 of the present invention.
  • computer program product 1000 can include program code 1001.
  • the program code 1001 may be a program code corresponding to the information transmission method performed by the source terminal device described in any of the above-described embodiments of the present invention.
  • the program code 1001 in the computer program product 1000 can be executed, for example, by a processor in the terminal device shown in FIG. 9 described above.
  • FIG. 11 is a schematic structural diagram of a storage medium according to Embodiment 5 of the present invention. As shown in FIG. 11, storage medium 1100 can be used to store computer program product 1101. Computer program product 1101 can include program code 1102.
  • the program code 1102 may be a program code corresponding to the information transmission method executed by the source terminal device of any of the above-described embodiments of the present invention provided by the embodiment of the present invention.
  • the storage medium 1100 may be an internal memory in the terminal device shown in FIG. 9 described above, or may be an external memory connected to the terminal device shown in FIG. 9 described above.
  • the program code 1102 in the computer program product 1101 can be executed, for example, by a processor in the user equipment shown in FIG. 9 described above.
  • the terminal device, the computer program product and the storage medium provided in the fifth embodiment of the present invention can be used to perform any information transmission method performed by the source terminal device described in the foregoing FIG. 1 to FIG. 6, and the specific implementation process and beneficial effects thereof are as follows. , will not repeat them here.
  • Embodiment 6 of the present invention further provides a base station.
  • FIG. 12 is a schematic structural diagram of a base station according to Embodiment 6 of the present invention.
  • the base station 1200 can include a receiver 1201, a processor 1202, and a transmitter 1203.
  • the receiver 1201 and the transmitter 1203 are respectively connected to the processor 1202.
  • the receiver 1201 is configured to receive first uplink information that is sent by the source terminal device in the first TTI.
  • the first uplink information includes: an amount of data to be transmitted in the second TTI and transmission data of the first TTI.
  • the processor 1202 is configured to allocate the uplink resource corresponding to the second TTI to the source terminal device according to the amount of data to be transmitted in the second TTI.
  • the sender 1203 is configured to send uplink resource information corresponding to the second TTI to the source terminal device.
  • the receiver 1201 is further configured to receive the second uplink information that is sent by the source terminal device according to the uplink resource corresponding to the second TTI in the second TTI, where the second uplink information includes: the second TTI transmission data.
  • the first uplink information further includes: an identifier of the destination terminal device, and a TB size of the first TTI.
  • the processor 1202 is further configured to determine the target terminal device according to the identifier of the target terminal device, and allocate the downlink resource corresponding to the first TTI to the target terminal device according to the TB size of the first TTI.
  • the transmitter 1203 is further configured to send the transmission data of the first TTI to the target terminal device in the first TTI according to the downlink resource corresponding to the first TTI.
  • the transmitter 1203 is further configured to send the downlink resource information corresponding to the first TTI to the target terminal device, where the downlink resource information corresponding to the first TTI is used to determine, by the target terminal device, the first TTI. And downlink data, and receiving, according to the downlink resource corresponding to the first TTI, the transmission data of the first TTI sent by the base station in the first TTI.
  • the identifier of the terminal device, the amount of data to be transmitted in the second TTI, and the TB size in the first TTI are in a preset time-frequency in the first symbol in the uplink resource corresponding to the first TTI. position.
  • the processor 1202 is further configured to allocate the uplink resource corresponding to the first TTI to the source terminal device.
  • the transmitter 1203 is further configured to send the uplink resource information corresponding to the first TTI to the source terminal device, where the uplink resource information corresponding to the first TTI is used to determine, by the source terminal device, an uplink resource corresponding to the first TTI, and The uplink resource corresponding to the first TTI.
  • the processor 1202 is configured to allocate the uplink corresponding to the first TTI to the source terminal device according to the amount of data to be transmitted in the first TTI in the uplink information sent by the previous TTI of the first TTI.
  • the uplink resource corresponding to the first TTI is allocated to the source terminal device according to the amount of data to be transmitted in the BSR sent by the source terminal device.
  • the transmitter 1203 is configured to send the DCI to the source terminal device, where the DCI includes uplink resource information corresponding to the second TTI.
  • FIG. 13 is a schematic structural diagram of a computer program product according to Embodiment 6 of the present invention.
  • computer program product 1300 can include program code 1301.
  • the program code 1301 may be a program code corresponding to the information transmission method performed by the base station described in any of the above-described embodiments of the present invention.
  • the program code 1301 in the computer program product 1300 can be executed, for example, by the processor 1202 in the base station 1200 shown in FIG.
  • FIG. 14 is a schematic structural diagram of a storage medium according to Embodiment 6 of the present invention.
  • storage medium 1400 can be used to store computer program product 1401.
  • Computer program product 1401 can include program code 1402.
  • the program code 1402 may be a program code corresponding to the information transmission method executed by the base station of any of the above-described embodiments of the present invention provided by the embodiment of the present invention.
  • the storage medium 1400 may be an internal memory in the base station 1200 shown in FIG. 12 described above, or may be an external memory connected to the base station 1200 shown in FIG.
  • the program code 1402 in the computer program product 1401 can be executed, for example, by the processor 1202 in the base station 1200 shown in FIG.
  • the base station, the computer program product, and the storage medium provided in Embodiment 6 of the present invention can be used to perform any information transmission method performed by the base station described in FIG. 1 to FIG. 6, and the specific implementation process and beneficial effects thereof are as follows. No longer.
  • the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed.
  • the foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

Selon certains modes de réalisation, la présente invention porte sur un procédé de transmission d'informations, sur une station de base et sur un appareil terminal. Le procédé selon la présente invention comprend les étapes suivantes : un appareil terminal source envoie, dans un premier TTI, des premières informations de liaison montante comprenant la quantité de données à transmettre pendant un second TTI à une station de base ; et l'appareil terminal source reçoit des informations de ressource de liaison montante envoyées par la station de base et correspondant au second TTI, et envoie, en fonction d'une ressource de liaison montante correspondant au second TTI, des secondes informations de liaison montante pendant le second TTI à la station de base. Les modes de réalisation de la présente invention peuvent permettre de réduire un retard de transmission.
PCT/CN2016/108163 2016-11-30 2016-11-30 Procédé de transmission d'informations, station de base et appareil terminal Ceased WO2018098762A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2016/108163 WO2018098762A1 (fr) 2016-11-30 2016-11-30 Procédé de transmission d'informations, station de base et appareil terminal
CN201680090044.5A CN109906646B (zh) 2016-11-30 2016-11-30 信息传输方法、基站和终端设备

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