US-20260129672-A1 - METHOD OF TIMING ADVANCE UPDATE OF PRECONFIGURED UPLINK RESOURCE, AND USER EQUIPMENT

Abstract

Provided are a channel transmission method, a UE, a base station, and a storage medium, where the method includes: acquiring common preconfigured uplink resource (PUR) configuration information configured by a base station through common signaling; and determining a timing advance (TA), and sending a physical uplink shared channel (PUSCH) on common PUR resources corresponding to the common PUR configuration information according to the TA.

Inventors

• Xiubin Sha
• Bo Dai
• Ting Lu
• Li Niu

Assignees

• ZTE CORPORATION

Dates

Publication Date

20260507

Application Date

20251219

Priority Date

20210401

Claims (20)

1. 1 . A channel transmission method, comprising: acquiring common preconfigured uplink resource (PUR) configuration information configured by a base station through common signaling; and determining a timing advance (TA), and sending a physical uplink shared channel (PUSCH) on common PUR resources corresponding to the common PUR configuration information according to the TA.
2. 2 . The method of claim 1 , wherein the determining the TA comprises: determining the TA according to satellite positioning.
3. 3 . The method of claim 1 , wherein the determining the TA, and sending the PUSCH on the common PUR resources corresponding to the common PUR configuration information according to the TA comprises: in response to determining that uplink transmission information is less than a transport block size of a PUSCH of the common PUR configuration information, determining the TA according to satellite positioning, and selecting a PUSCH resource from the common PUR resources for transmission; and in response to determining that the uplink transmission information is greater than or equal to the transport block size of the PUSCH of the common PUR configuration information, selecting a preamble resource to initiate a random access procedure.
4. 4 . The method of claim 1 , wherein the determining the TA, and sending the PUSCH on the common PUR resources corresponding to the common PUR configuration information according to the TA comprises: determining the TA according to satellite positioning, and selecting a PUSCH resource from the common PUR resources for transmission.
5. 5 . The method of claim 1 , further comprising: monitoring a physical downlink control channel (PDCCH) scrambled with a common PUR-radio network temporary identifier (PUR-RNTI), and entering a PUR common search space (CSS) monitoring state; and receiving the PDCCH, and receiving a common PUR feedback on a downlink resource grant (DL grant) resource scheduled by the PDCCH.
6. 6 . The method of claim 5 , wherein the common PUR feedback comprises at least one of: a user equipment (UE) identity, a cell-radio network temporary identifier (C-RNTI), a UE search space (USS), an uplink resource grant (UL grant), a downlink resource grant (DL grant) or a PUR transmission end indication.
7. 7 . The method of claim 6 , further comprising: in response to determining that the UE identity in the common PUR feedback is consistent with a local UE identity, determining that matching succeeds and UE identification is completed.
8. 8 . The method of claim 7 , wherein in response to determining that the UE identity in the common PUR feedback is consistent with the local UE identity, the determining that the matching succeeds and the UE identification is completed comprises at least one of: in response to determining that the common PUR feedback carries the PUR transmission end indication, completing a common PUR transmission, and returning to an idle state; in response to determining that the common PUR feedback carries a UE-specific radio network temporary identifier (C-RNTI), the USS, the UL grant and/or a DL grant indication, entering a PUR USS monitoring state; in response to determining that the common PUR feedback carries a radio resource control (RRC) connection establishment message, entering an RRC connection state; or in response to determining that the common PUR feedback carries the C-RNTI and does not carry the USS, setting the USS according to a CSS configuration.
9. 9 . A channel transmission method, comprising: configuring common preconfigured uplink resource (PUR) configuration information of a user equipment (UE) through common signaling; and receiving a physical uplink shared channel (PUSCH) sent on a common PUR resource corresponding to the common PUR configuration information.
10. 10 . The method of claim 9 , further comprising: sending a physical downlink control channel (PDCCH) scrambled with a common PUR-radio network temporary identifier (PUR-RNTI) to the UE to control the UE to receive a common PUR feedback; and sending the common PUR feedback on a downlink resource grant (DL grant) resource to the UE.
11. 11 . The method of claim 10 , wherein the common PUR feedback comprises at least one of: a UE identity, a cell-radio network temporary identifier (C-RNTI), a UE search space (USS), an uplink resource grant (UL grant), a downlink resource grant (DL grant) or a PUR transmission end indication.
12. 12 . A user equipment (UE), comprising: one or more processors; and a memory, configured to store one or more programs; wherein the one or more programs, when executed by the one or more processors, cause the one or more processors to perform a channel transmission method comprising: acquiring common preconfigured uplink resource (PUR) configuration information configured by a base station through common signaling; and determining a timing advance (TA), and sending a physical uplink shared channel (PUSCH) on common PUR resources corresponding to the common PUR configuration information according to the TA.
13. 13 . The UE of claim 12 , wherein the determining the TA comprises: determining the TA according to satellite positioning.
14. 14 . The UE of claim 12 , wherein the determining the TA, and sending the PUSCH on the common PUR resources corresponding to the common PUR configuration information according to the TA comprises: in response to determining that uplink transmission information is less than a transport block size of a PUSCH of the common PUR configuration information, determining the TA according to satellite positioning, and selecting a PUSCH resource from the common PUR resources for transmission; and in response to determining that the uplink transmission information is greater than or equal to the transport block size of the PUSCH of the common PUR configuration information, selecting a preamble resource to initiate a random access procedure.
15. 15 . The UE of claim 12 , wherein the determining the TA, and sending the PUSCH on the common PUR resources corresponding to the common PUR configuration information according to the TA comprises: determining the TA according to satellite positioning, and selecting a PUSCH resource from the common PUR resources for transmission.
16. 16 . The UE of claim 12 , wherein the one or more processors further performs following steps: monitoring a physical downlink control channel (PDCCH) scrambled with a common PUR-radio network temporary identifier (PUR-RNTI), and entering a PUR common search space (CSS) monitoring state; and receiving the PDCCH, and receiving a common PUR feedback on a downlink resource grant (DL grant) resource scheduled by the PDCCH, wherein the common PUR feedback comprises at least one of: a user equipment (UE) identity, a cell-radio network temporary identifier (C-RNTI), a UE search space (USS), an uplink resource grant (UL grant), a downlink resource grant (DL grant) or a PUR transmission end indication; in response to determining that the UE identity in the common PUR feedback is consistent with a local UE identity, determining that matching succeeds and UE identification is completed.
17. 17 . The UE of claim 16 , wherein in response to determining that the UE identity in the common PUR feedback is consistent with the local UE identity, the determining that the matching succeeds and the UE identification is completed comprises at least one of: in response to determining that the common PUR feedback carries the PUR transmission end indication, completing a common PUR transmission, and returning to an idle state; in response to determining that the common PUR feedback carries a UE-specific radio network temporary identifier (C-RNTI), the USS, the UL grant and/or a DL grant indication, entering a PUR USS monitoring state; in response to determining that the common PUR feedback carries a radio resource control (RRC) connection establishment message, entering an RRC connection state; or in response to determining that the common PUR feedback carries the C-RNTI and does not carry the USS, setting the USS according to a CSS configuration.
18. 18 . A base station, comprising: one or more processors; and a memory, configured to store one or more programs; wherein the one or more programs, when executed by the one or more processors, cause the one or more processors to perform steps of the method of claim 9 .
19. 19 . A non-transitory computer-readable medium having a computer program stored thereon, the computer program, executed by a processor, causes the processor to implement implements the method of claim 1 .
20. 20 . A non-transitory computer-readable medium having a computer program stored thereon, the computer program, executed by a processor, causes the processor to implement the method of claim 9 .

Description

CROSS-REFERENCES TO RELATED APPLICATIONS This is a continuation application of U.S. patent application number Ser. No. 18/217,400, filed Jun. 30, 2023, which claims priority to and is a continuation of International Patent Application No. PCT/CN2022/071985, filed Jan. 14, 2022, which claims priority to Chinese Patent Application No. 202110357557.0 filed with the China National Intellectual Property Administration (CNIPA) on Apr. 1, 2021, the disclosures of each of which are incorporated herein by reference in their entireties. TECHNICAL FIELD The present application relates to the field of wireless communications, for example, to a channel transmission method and apparatus, a user equipment, a base station, and a storage medium. BACKGROUND In narrowband Internet of Things (NB-IOT) and enhanced machine-type communication (eMTC) terrestrial networks, in order to save energy of a user equipment (UE), the PUR function is introduced. A physical uplink shared channel (PUSCH) link resource is preconfigured for a UE with a fixed traffic mode, and a UE in a radio resource control (RRC) idle (RRC_IDLE) state or an RRC inactive (RRC_INACTIVE) state may directly send uplink data on the preconfigured PUSCH resource, thereby saving the access procedure of a physical random access channel (PRACH) and reducing the power consumption of the UE. However, the use premise of the PUR function is that a timing advance (TA) of the UE remains unchanged, and the way to ensure that the TA of the UE remains unchanged is that the UE is in a static state. In this manner, in NB-IOT and eMTC terrestrial networks, the PUR function is only applicable to static UEs. But for non-terrestrial networks (NTNs), especially low earth orbit satellite radio networks, even if the UE is in a static state, the satellite still moves. That is, a cell and a satellite may be in a relative moving state, which leads to that the cell that configures PUR resources for the UE may not be the cell that finally carries out PUR transmission on the UE and that the TA of the UE is also changing all the time. In this manner, the PUR function cannot be applied in NTNs. At present, a channel transmission method based on the PUR function is urgently needed in NTN networks. SUMMARY Embodiments of the present application provide a channel transmission method and apparatus, a UE, a base station, and a storage medium, so as to achieve channel transmission based on a PUR function in non-terrestrial networks, save radio resources and reduce the power consumption of a UE. The embodiments of the present application provide a channel transmission method. The method includes: receiving PUR configuration information configured by a base station through dedicated signaling; in response to determining before a time domain location of a PUR resource corresponding to the PUR configuration information that the PUR resource belongs to a current camping cell, determining a TA; and in response to being in a target service state, sending PUSCH using the TA on the PUR resource, where the target service state indicates that no RRC connection exists with the base station. The embodiments of the present application further provide a channel transmission method. The method includes: configuring PUR configuration information of a UE through dedicated signaling; and receiving a PUSCH transmitted on a PUR resource corresponding to the PUR configuration information. The embodiments of the present application further provide a TA update method. The method includes: updating a TA of a PUR resource according to a received random access response message. The embodiments of the present application further provide a channel transmission method. The method includes: common PUR configuration information configured by a base station through common signaling is acquired; and a TA is determined, and a PUSCH is sent on common PUR resources corresponding to the common PUR configuration information according to the TA. The embodiments of the present application further provide a channel transmission method. The method includes: configuring common PUR configuration information of a UE through common signaling; and receiving a PUSCH sent on a common PUR resource corresponding to the common PUR configuration information. The embodiments of the present application further provide a channel transmission apparatus. The apparatus includes a configuration receiving module, a TA module, and a channel sending module. The configuration receiving module is configured to receive PUR configuration information configured by a base station through dedicated signaling. The TA module is configured to, in response to determining before a time domain location of a PUR resource corresponding to the PUR configuration information that the PUR resource belongs to a current camping cell, determine a TA. The channel sending module is configured to, in response to being in a target service state, send a PUSCH using the TA on the PUR resourc