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EP-4740656-A1 - TRANSMISSION POWER CONTROL METHOD, APPARATUS, AND COMPUTER-READABLE STORAGE MEDIUM

EP4740656A1EP 4740656 A1EP4740656 A1EP 4740656A1EP-4740656-A1

Abstract

A wireless communication method includes obtaining a first transmission power configuration; and determining a transmission power of a first uplink (UL) message based on the first power configuration and whether the first UL message is in a first UL resource. Another wireless communication method includes providing a first transmission power configuration; and receiving a first uplink (UL) message having a transmission power determined based on the first power configuration and whether the first UL message is in a first UL resource.

Inventors

  • LIU, XING
  • HAN, Xianghui
  • WEI, Xingguang
  • ZHANG, JUNFENG

Assignees

  • ZTE Corporation

Dates

Publication Date
20260513
Application Date
20230808

Claims (20)

  1. A wireless communication method, comprising: obtaining a first transmission power configuration; and determining a transmission power of a first uplink (UL) message based on the first power configuration and whether the first UL message is in a first UL resource.
  2. The method of claim 1, wherein the first UL resource occupies at least a part of a frequency domain resource of a downlink (DL) resource or a flexible resource; and/or the first UL message is a preamble transmitted on a Physical Random Access Channel (PRACH) .
  3. The method of claim 1, wherein, according to the first transmission power configuration, the first UL message has a first transmission power when it is in the first UL resource different from a second transmission power when it is out of the first UL resource.
  4. The method of any one of claims 1 to 3, wherein: the first transmission power configuration includes a first power offset for a first UL message in the first UL resource in addition to a transmission power of a first UL message out of the first UL resource; and/or the first transmission power configuration includes a PRACH target reception power having a second power offset for a first UL message in the first UL resource than a first UL message out of the first UL resource; and/or the first transmission power configuration includes a first target reception power value for a first UL message in the first UL resource and a second target reception power value for a first UL message out of the first UL resource; and/or the first transmission power configuration includes a first Delta_Preamble setting for a first UL message in the first UL resource and a second Delta_Preamble setting for a first UL message out of the first UL resource; and/or the first transmission power configuration is indicated by a PDCCH with an offset value for the first UL message in the first UL resource.
  5. The method of claim 1, wherein the first transmission power configuration includes a first power ramping setting for a first UL message in the first UL resource and a second power ramping setting for a first UL message out of the first UL resource.
  6. The method of claim 5, wherein the power ramping setting includes at least one of a power ramping counter or a power ramping step size for the first UL message.
  7. The method of claim 5, further comprising, determining a power ramping value for a first UL message according to the power ramping setting corresponding to a resource for the first UL message.
  8. The method of claim 1, further comprising selecting a first RACH occasion (RO) and at least one second RO for different RACH attempts, wherein whether the at least one second RO is within or out of a first UL resource is based on whether the first RO is within or out of a first UL resource.
  9. The method of claim 1, further comprising selecting at least one SSB (Synchronization Signal Block) based on an SSB selection configuration, the SSB selection configuration including a first threshold for selecting of an SSB corresponding to an RO within the first UL resource and a second threshold for selection of an SSB corresponding to an RO out of the first UL resource.
  10. The method of claim 1, further comprising determining a transmission power of a second UL message based on the transmission power of the first UL message and a second transmission power configuration, wherein: the second transmission power configuration includes two or more values of power difference between the first UL message and the second UL message; and/or the second transmission power configuration includes a value of power difference between the first UL message and the second UL message and one or more offset.
  11. The method of claim 10, wherein the second UL message is a PUSCH message.
  12. A wireless communication method, comprising: providing a first transmission power configuration; and receiving a first uplink (UL) message having a transmission power determined based on the first power configuration and whether the first UL message is in a first UL resource.
  13. The method of claim 12, wherein the first UL resource occupies at least a part of a frequency domain resource of a downlink (DL) resource or a flexible resource; and/or the first UL message is a preamble transmitted on a Physical Random Access Channel (PRACH) .
  14. The method of claim 12, wherein, according to the first transmission power configuration, the first UL message has a first transmission power when it is in the first UL resource different from a second transmission power when it is out of the first UL resource.
  15. The method of any one of claims 12 to 14, wherein: the first transmission power configuration includes a first power offset for a first UL message in the first UL resource in addition to a transmission power of a first UL message out of the first UL resource; and/or the first transmission power configuration includes a PRACH target reception power having a second power offset for a first UL message in the first UL resource than a first UL message out of the first UL resource; and/or the first transmission power configuration includes a first target reception power value for a first UL message in the first UL resource and a second target reception power value for a first UL message out of the first UL resource; and/or the first transmission power configuration includes a first Delta_Preamble setting for a first UL message in the first UL resource and a second Delta_Preamble setting for a first UL message out of the first UL resource; and/or the first transmission power configuration is indicated by a PDCCH with an offset value for the first UL message in the first UL resource.
  16. The method of claim 12, wherein the first transmission power configuration includes a first power ramping setting for a first UL message in the first UL resource and a second power ramping setting for a first UL message out of the first UL resource.
  17. The method of claim 16, wherein the power ramping setting includes at least one of a power ramping counter or a power ramping step size for the first UL message.
  18. The method of claim 16, further comprising receiving the first UL message have the transmission power determined according to a power ramping value for the first UL message according to the power ramping setting corresponding to a resource for the first UL message.
  19. The method of claim 12, further comprising receiving the first UL message in a first RACH occasion (RO) and at least one second RO for different RACH attempts, wherein whether the at least one second RO is within or out of a first UL resource is based on whether the first RO is within or out of a first UL resource.
  20. The method of claim 12, further comprising an SSB selection configuration for selecting at least one SSB (Synchronization Signal Block) providing, the SSB selection configuration including a first threshold for selecting of an SSB corresponding to an RO within the first UL resource and a second threshold for selection of an SSB corresponding to an RO out of the first UL resource.

Description

TRANSMISSION POWER CONTROL METHOD, APPARATUS, AND COMPUTER-READABLE STORAGE MEDIUM TECHNICAL FIELD This disclosure is generally related to wireless communication, and more particularly to transmission power control to mitigate the inference of transmission. BACKGROUND Wireless communication technologies are pivotal components of the increasingly interconnecting global communication networks. Wireless communications rely on accurately allocated time and frequency resources for transmitting and receiving wireless signals. Although frequency duplication is a new technology to improve spectrum efficiency, simultaneous transmission on downlink (DL) and uplink (UL) will bring severe interference that may lead to design complexity of gNBs (base station, or BS) and user equipment (UE) and increase the costs. SUMMARY This summary is a brief description of certain aspects of this disclosure. It is not intended to limit the scope of this disclosure. According to some embodiments of this disclosure, a wireless communication method is disclosed. The method includes obtaining a first transmission power configuration; and determining a transmission power of a first uplink (UL) message based on the first power configuration and whether the first UL message is in a first UL resource. According to some embodiments of this disclosure, another wireless communication method is disclosed. The method includes providing a first transmission power configuration; receiving a first uplink (UL) message having a transmission power determined based on the first power configuration and whether the first UL message is in a first UL resource. Still another embodiment of this disclosure provides a wireless communication apparatus, including one or more memory units storing one or more programs and one or more processors electrically coupled to the one  or more memory units and configured to execute the one or more programs to perform any method or step or their combinations in this disclosure. Still another embodiment of this disclosure provides non-transitory computer-readable storage medium, storing one or more programs, the one or more programs being configured to, when performed by at least one processor, cause to perform any method or step or their combinations in this disclosure. According to some embodiments of this disclosure, one or more wireless communication methods are further disclosed, the methods include combinations of certain methods, aspects, elements, and steps (either in a generic view or specific view) disclosed in the various embodiments of this disclosure. The above and other aspects and their implementations are described in greater detail in the drawings, the descriptions, and the claims. BRIEF DESCRIPTION OF THE DRAWINGS Various exemplary embodiments of the present disclosure are described in detail below with reference to the following drawings. The drawings are provided for purposes of illustration only and merely depict exemplary embodiments of the present disclosure to facilitate the understanding of the present disclosure. Therefore, the drawings should not be considered as limiting of the breadth, scope, or applicability of the present disclosure. It should be noted that for clarity and ease of illustration these drawings are not necessarily drawn to scale. FIG. 1 shows a flowchart illustrating the competition-based random access procedure. FIG. 2 shows a flowchart illustrating the non-competition-based random access procedure. FIG. 3 shows a subband non-overlapping full duplex (SBFD) arrangement of transmission resources. FIG. 4 shows a wireless communication system structure. DETAILED DESCRIPTION FIG. 1 shows a flowchart illustrating the competition-based random access procedure, and as shown in FIG. 1, the competition-based random access procedure mainly comprises the following steps: S101: A UE transmits a random access preamble on a physical uplink random access channel (PRACH) ,  wherein the time-frequency domain location for transmitting the preamble is associated with a Random Access Radio Network Temporary Identifier (RA-RNTI) . S103: After receiving the random access preamble, a base station replies a random access response to the UE on a physical downlink shared channel (PDSCH) which is scheduled by a physical downlink control channel (PDCCH) , wherein the random access response comprises grant for subsequent uplink scheduling, i.e., Msg3 of the UE by the base station. S105: If the UE identifies a response associated with the preamble transmitted in S101 according to the RA-RNTI, the UE performs the uplink scheduling according to the grant obtained from the base station in S103 and transmits an Msg3 to the base station. The Msg3 includes a UE identifier or a contention resolution identifier; if the message has not been received, the base station will reschedule the Msg3 through a DCI format with CRC scrambled by a Temporary Cell RNTI (TC-RNTI) , then the UE retransmits the Msg3 ac