Data transmission method, device and system

Data transmission method, device and system

  • CN 109,451,862 B
  • Filed: 12/28/2017
  • Issued: 08/03/2021
  • Est. Priority Date: 12/28/2017
  • Status: Active Grant
First Claim
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1. A data transmission method, for a base station, the method comprising:

  • acquiring target transmission direction indication information from pre-configured indication unit ratio information, wherein the target transmission direction indication information is used for a terminal to determine a transmission direction for performing uplink data transmission through an uplink slot and downlink data transmission through a downlink slot in a Frequency Division Duplex (FDD) mode;

    the indication unit matching information includes multiple pieces of transmission direction indication information, the target transmission direction indication information is any one of the multiple pieces of transmission direction indication information, each piece of transmission direction indication information includes slot matching information of a downlink slot and slot matching information of an uplink slot, and the slot matching information of the downlink slot is used for reserving a part of resources for the downlink slot, that is, the transmission direction of the downlink slot includes downlink transmission and an unknown state;

    the time slot ratio information of the uplink slot is used for reserving a part of resources for the uplink slot, namely the transmission direction of the uplink slot comprises uplink transmission and an unknown state;

    the unknown state is used for indicating that the time slot is not an uplink time slot and a downlink time slot;

    and sending the target transmission direction indication information to a terminal so that the terminal determines respective transmission directions of an uplink slot and a downlink slot in the FDD mode according to the received target transmission direction indication information.

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