Data transmission method and apparatus, and communication device and storage medium

Patent metadata

Field	Value
Publication number	US-12484110-B2
Application number	US-202018010433-A
Country	US
Kind code	B2
Filing date	Jun 15, 2020
Priority date	Jun 15, 2020
Publication date	Nov 25, 2025
Grant date	Nov 25, 2025

Abstract

The present disclosure relates to a data transmission method and apparatus and a communication device. The data transmission method comprises: according to a discontinuous reception (DRX) parameter of a sidelink, which parameter is determined by means of a Uu port DRX parameter of a first user equipment (UE), performing data transmission between the first UE and second UE by means of the sidelink during a wake-up period of the first UE.

First claim

What is claimed is:

1 . A data communication method, applied to a first user equipment (UE), comprising:
sending a discontinuous reception (DRX) parameter of a Uu port of the first UE to a second UE via a sidelink, wherein the DRX parameter of the Uu port of the first UE is used to determine a DRX parameter of a sidelink between the first UE and the second UE, and the DRX parameter of the sidelink is determined by the second UE or by a base station after receiving the DRX parameter of the Uu port of the first UE forwarded by the second UE; wherein the DRX parameter of the sidelink is the same as the DRX parameter of the Uu port of the first UE, receiving the DRX parameter of the sidelink sent or forwarded by the second UE, and performing data communication with the second UE via the sidelink during an on duration period indicated by the DRX parameter of the sidelink; wherein sending the DRX parameter of the Uu port of the first UE to the second UE via the sidelink comprises: sending at least one set of DRX parameters of the Uu port of the first UE to the second UE via the sidelink;
wherein sending the at least one set of DRX parameters of the Uu port of the first UE to the second UE via the sidelink, comprises:
in response to the first UE being in an idle state or an inactive state, sending to the second UE a DRX parameter of the Uu port used by the first UE to receive a paging message via the sidelink.

2 . The method according to claim 1 , further comprising:
receiving the DRX parameter of the sidelink returned by the second UE based on the at least one set of DRX parameters of the Uu port of the first UE.

3 . The method according to claim 1 , wherein the DRX parameter of the Uu port used by the first UE to receive the paging message comprises:
a DRX cycle, a paging frame offset, a number of paging frames in a DRX cycle, a number of paging occasions contained in each paging frame, an identifier of the first UE, a frame identifier of a paging frame and/or a subframe identifier of a paging frame; and wherein the frame identifier of the paging frame and/or the subframe identifier of the paging frame is used for determining the on duration period.

4 . The method according to claim 1 , wherein, in response to the first UE being in a connected state, the DRX parameter of the Uu port of the first UE comprises:
a DRX cycle, a DRX cycle start offset, an on duration timer, an inactivity timer, an inactivity timer, an uplink hybrid automatic retransmission request round trip time (HARQ RTT) timer, a downlink HARQ RTT timer, an uplink retransmission timer and/or a downlink retransmission timer.

5 . A data communication method, applied to a second user equipment (UE), comprising:
receiving a discontinuous reception (DRX) parameter of a Uu port of a first UE sent by the first UE, determining a DRX parameter of a sidelink between the first UE and the second UE, wherein the DRX parameter of the sidelink is determined by the second UE according to the DRX parameter of the Uu port of the first UE or by a base station according to the DRX parameter of the Uu port of the first UE forwarded by the second UE; wherein the DRX parameter of the sidelink is the same as the DRX parameter of the Uu port of the first UE, sending to the first UE the DRX parameter of the sidelink, and performing data communication with the first UE via the sidelink during an on duration period indicated by the DRX parameter of the sidelink; wherein receiving the DRX parameter of the Uu port of the first UE sent by the first UE comprises: receiving at least one set of DRX parameters of the Uu port of the first UE sent by the first UE;
wherein receiving the at least one set of DRX parameters of the Uu port of the first UE sent by the first UE, comprises:
receiving, via the sidelink, a DRX parameter of the Uu port used by the first UE to receive a paging message sent by the first UE in response to the first UE being in an idle state or an inactive state.

6 . The method according to claim 5 , wherein determining the DRX parameter of the sidelink according to the DRX parameter of the Uu port of the first UE, comprises:
determining the DRX parameter of the sidelink according to the least one set of DRX parameters of the Uu port of the first UE.

7 . The method according to claim 6 , wherein determining the DRX parameter of the sidelink according to the at least one set of DRX parameters of the Uu port of the first UE, comprises:
in response to the second UE being in an idle state or an inactive state, determining, by the second UE, the DRX parameter of the sidelink according to the at least one set of DRX parameters of the Uu port of the first UE.

8 . The method according to claim 6 , wherein determining the DRX parameter of the sidelink according to the at least one set of DRX parameters of the Uu port of the first UE, comprises:
sending to the base station where the second UE resides the at least one set of DRX parameters of the Uu port of the first UE; and receiving the DRX parameter of the sidelink returned by the base station based on the at least one set of DRX parameters of the Uu port of the first UE.

9 . The method according to claim 8 , wherein sending to the base station where the second UE resides the at least one set of DRX parameters of the Uu port of the first UE, comprises:
in response to the second UE being in a connected state, sending at least one set of DRX parameters of the Uu port of the first UE to the base station.

10 . The method according to claim 8 , wherein sending to the base station where the second UE resides the at least one set of DRX parameters of the Uu port of the first UE, comprises:
sending to the base station at least one set of DRX parameters of the Uu port of the first UE, and a sidelink identifier of the first UE and/or identifier information of the sidelink; wherein the sidelink identifier of the first UE and/or the identifier information of the sidelink is used for the base station to determine the sidelink.

11 . The method according to claim 5 , wherein, in response to the first UE being in the idle state or the inactive state, the DRX parameter of the Uu port of the first UE comprises: a DRX cycle, a paging frame offset, a number of paging frames in a DRX cycle, a number of paging occasions contained in each paging frame, an identifier of the first UE, a frame identifier of a paging frame and/or a subframe identifier of a paging frame; wherein the frame identifier of the paging frame and/or the subframe identifier of the paging frame is used for determining the on duration period.

12 . The method according to claim 5 , wherein, in response to the first UE being in a connected state, the DRX parameter of the Uu port of the first UE comprises:
a DRX cycle, a DRX cycle start offset, an on duration timer, an inactivity timer, an inactivity timer, an uplink hybrid automatic retransmission request round trip time (HARQ RTT) timer, a downlink HARQ RTT timer, an uplink retransmission timer and/or a downlink retransmission timer.

13 . A data communication method, applied to a base station, comprising:
receiving a discontinuous reception (DRX) parameter of a Uu interface of a first user equipment (UE) forwarded by a second UE, determining a DRX parameter of a sidelink between the first UE and the second UE according to the DRX parameter of the Uu port of the first UE, wherein the DRX parameter of the sidelink is used for data communication between the first UE and the second UE via the sidelink, and the DRX parameter of the sidelink is the same as the DRX parameter of the Uu port of the first UE, and sending the

Assignees

• Beijing Xiaomi Mobile Software Co Ltd

Inventors

• Yang Xing

Classifications

• H04W68/025

  Indirect paging · CPC title

• H04L1/1896

  ARQ related signaling · CPC title

• H04W72/25

  between terminals via a wireless link, e.g. sidelink · CPC title

• H04W76/14

  Direct-mode setup · CPC title

• H04W88/04

  adapted for relaying to or from another terminal or user · CPC title