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EP-4017129-B1 - DATA TRANSMISSION METHOD AND DEVICE, AND COMPUTER-READABLE STORAGE MEDIUM

EP4017129B1EP 4017129 B1EP4017129 B1EP 4017129B1EP-4017129-B1

Inventors

  • PENG, FOCAI
  • XU, JUN
  • CHEN, Mengzhu
  • MA, Xuan
  • GUO, Qiujin
  • DAI, BO
  • MA, XIAOYING
  • HAN, CUIHONG

Dates

Publication Date
20260506
Application Date
20200814

Claims (11)

  1. A data transmission method, comprising: configuring (S310), by a second communication node, a configuration parameter for a first communication node, wherein the first communication node is a user equipment, UE; transmitting (S320), by the second communication node, a first message to the first communication node, wherein the first message comprises a power saving signal; and transmitting (S330), by the second communication node, a third message to the first communication node, wherein the third message comprises a reference signal, wherein in a case where the configuration parameter does not comprise a maximum number of multi-input multi-output layers for one bandwidth part, BWP, a value of the maximum number of multi-input multi-output layers for a serving cell is applied, by the UE, to the one BWP, wherein the configuration parameter includes the maximum number of multi-input multi-output layers for a serving cell where the one BWP is located.
  2. The method of claim 1, wherein a cyclic redundancy check, CRC, bit of the first message is scrambled according to a power saving radio network temporary identifier, PS-RNTI.
  3. The method of claim 1, wherein, in a case where the configuration parameter comprises a maximum number of multi-input multi-output layers for the one BWP, the maximum number of multi-input multi-output layers comprised by the configuration parameter is applied to the one BWP.
  4. The method of claim 2, further comprising: scrambling the CRC bit of the first message with the PS-RNTI outside of active time.
  5. A data transmission method, comprising: acquiring (S410), by a first communication node, a configuration parameter configured by a second communication node for the first communication node, wherein the first communication node is a user equipment, UE; receiving (S420), by the first communication node, a first message transmitted by the second communication node, wherein the first message comprises a power saving signal; and receiving (S430), by the first communication node, a third message from the second communication node, wherein the third message comprises a reference signal, wherein in a case where the configuration parameter does not comprise a maximum number of multi-input multi-output layers for one bandwidth part, BWP, a value of the maximum number of multi-input multi-output layers for a serving cell is applied, by the UE, to the one BWP, wherein the configuration parameter includes the maximum number of multi-input multi-output layers for a serving cell where the one BWP is located.
  6. The method of claim 5, wherein a cyclic redundancy check, CRC, bit of the first message is scrambled according to a power saving radio network temporary identifier, PS-RNTI.
  7. The method of claim 5, wherein, in a case where the configuration parameter comprises a maximum number of multi-input multi-output layers for the one BWP, the maximum number of multi-input multi-output layers comprised by the configuration parameter is applied to the one BWP.
  8. The method of claim 6, further comprising: scrambling the CRC bit of the first message with the PS-RNTI outside of active time.
  9. A data transmission device (50) configured as a user equipment, UE, and comprising a processor (58; 60) which is configured to: acquire a configuration parameter configured by a second communication node; receive a first message transmitted by the second communication node, wherein the first message comprises a power saving signal; and receive a third message from the second communication node, wherein the third message comprises a reference signal, wherein in a case where the configuration parameter does not comprise a maximum number of multi-input multi-output layers for one bandwidth part, BWP, a value of the maximum number of multi-input multi-output layers for a serving cell is applied, by the UE, to the one BWP, wherein the configuration parameter includes the maximum number of multi-input multi-output layers for a serving cell where the one BWP is located.
  10. The data transmission device (50) according to claim 9, wherein the processor (58; 60) is further configured to perform the method according to any one of claims 6 to 8.
  11. A computer-readable storage medium (56; 61) configured to store a computer program which, when executed by a processor (58; 60), implements the data transmission method of any one of claims 1 to 8.

Description

TECHNICAL FIELD The present application relates to radio communication networks, for example, to a data transmission method and device, and a computer-readable storage medium. BACKGROUND Discontinuous reception (DRX) refers to that a user equipment (UE) intermittently receives signals or channels transmitted by a base station instead of continuously receiving signals or channels transmitted by the base station. A cycle of the discontinuous reception of the UE is called a DRX cycle. One DRX cycle includes an ON duration of the DRX cycle (DRX-ON) and an OFF duration of the DRX cycle (DRX-OFF). However, the 3rd Generation Partnership Project (3 GPP) has not yet determined what operations the base station and the UE can perform during the period before the DRX-ON to save power for the UE. WO 2019/032280 A1, WO 2019/032886 A1, and CMCC: "Discussion on UE power saving schemes with adaption to UE traffic" (3GPP Draft; R1-1903344) are related prior art. SUMMARY The invention is specified by the independent claims. Preferred embodiments are defined in the dependent claims. In the following description, although numerous features may be designated as optional, it is nevertheless acknowledged that all features comprised in the independent claims are not to be read as optional. The present application provides a data transmission method and apparatus, and a computer-readable storage medium, which can improve the transmission efficiency between a first communication node and a second communication node, thereby saving the power of the first communication node. An embodiment of the present application provides a data transmission method according to claim 1. An embodiment of the present application provides a data transmission method according to claim 5. An embodiment of the present application provides a transmission according to claim 9. An embodiment of the present application further provides a computer readable storage medium, which is configured to store a computer program which, when executed by a processor, implements the data transmission method of any one of the above embodiments. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a flowchart of a data transmission method according to an embodiment;FIG. 2 is a flowchart of another data transmission method according to another embodiment;FIG. 3 is a flowchart of another data transmission method according to an embodiment;FIG. 4 is a flowchart of another data transmission method according to an embodiment;FIG. 5 is a time position diagram of a pre-window according to an embodiment;FIG. 6 is a schematic diagram illustrating that a power saving signal/channel triggers a base station to transmit a channel-state information reference signal (CSI-RS), a power saving signal/channel triggers a UE to transmit a sounding reference signal and the sounding reference signal is associated with the channel-state information reference signal according to an embodiment;FIG. 7 is a schematic diagram illustrating that a power saving signal/channel triggers a base station to transmit a channel-state information reference signal and a sounding reference signal is associated with the power saving signal/channel according to an embodiment;FIG. 8 is a schematic diagram illustrating that downlink control information triggers a base station to transmit a channel-state information reference signal, a downlink control information triggers a UE to transmit a sounding reference signal and the sounding reference signal is associated with the channel-state information reference signal according to an embodiment;FIG. 9 is a schematic diagram illustrating that a power saving signal/channel triggers a base station to transmit a channel-state information reference signal, a power saving signal/channel triggers a UE to transmit a random access channel and the random access channel is associated with the channel-state information reference signal according to an embodiment;FIG. 10 is a schematic diagram illustrating that a power saving signal/channel triggers a UE to transmit a sounding reference signal and the sounding reference signal is associated with a channel-state information reference signal according to an embodiment;FIG. 11 is a schematic diagram illustrating that a power saving signal/channel triggers a base station to transmit a channel-state information reference signal and a UE, according to a measurement result of the CSI-RS, transmits a physical uplink control channel according to an embodiment;FIG. 12 is a schematic diagram of copying one or more symbols of a power saving signal/channel to enhance decoding performance of the power saving signal/channel according to an embodiment;FIG. 13 is a schematic diagram of copying a demodulation reference signal of a power saving signal/channel to enhance decoding performance of the power saving signal/channel according to an embodiment;FIG. 14 is a structural diagram of a data transmission device according to an embodiment;FIG. 15 is a structural diagr