US-12628157-B2 - Method and system for resolving transmission conflicts in wireless network

US12628157B2US 12628157 B2US12628157 B2US 12628157B2US-12628157-B2

Abstract

Apparatuses, methods, systems, and computer readable media are disclosed. In one aspect, a wireless communication method is disclosed. The method includes receiving, by a first wireless device, one or more control information messages, at least one of the control information messages including a transmission cancellation indication indicating that a transmission previously scheduled for the first wireless device is to be cancelled, and performing, by the first wireless device, a timing analysis on the at least one of the control information messages including the transmission cancellation indication.

Inventors

Kai Xiao
Wei Chen
Xing Liu
Xianghui Han
Wei Gou
Junfeng Zhang

Assignees

ZTE CORPORATION

Dates

Publication Date: 20260512
Application Date: 20221007

Claims (17)

1 . A wireless communication method, comprising: receiving, by a first wireless device, one or more control information messages, at least one of the control information messages including a transmission cancellation indication indicating that a transmission previously scheduled for the first wireless device is to be cancelled; performing, by the first wireless device, a timing analysis on the at least one of the control information messages including the transmission cancellation indication; and determining, by the first wireless device, whether to cancel a transmission overlapping with a time-frequency resource indicated by the transmission cancellation indication at least according to the timing analysis; wherein the timing analysis includes: upon determination that both a first time difference between a first time point and a second time point and a second time difference between a third time point and a fourth time point satisfy a predetermined condition, performing an inter-UE cancellation to first cancel an uplink transmission that at least partially overlaps a time-frequency resource indicated by the transmission cancellation indication, wherein the first time point is determined based on the one or more control information messages, the second time point is determined based on the uplink transmissions scheduled by the control information or corresponding to a configured grant, wherein the third time point is determined based on the one or more control information messages, and the fourth time point is determined based on the uplink transmissions scheduled by the control information or corresponding to the configured grant, and the fourth time point is different from the second time point; or upon determination that at least one of the first and second time differences fails to satisfy the predetermined condition, performing cancellation of the uplink transmissions in sequence of an arrival of the messages or first canceling an uplink transmission that at least partially overlaps one or more high priority-physical uplink shared channels (PUSCH).
2 . The method of claim 1 , wherein the first time point is at a last symbol of the control information message that includes the uplink cancellation information, or at a last symbol of the last control information message that the first wireless device is operable to respond to.
3 . The method of claim 1 , wherein the third time point is at a last symbol of the control information message that includes the uplink cancellation information, or at a last symbol of the last control information message that the first wireless device is operable to respond to.
4 . The method of claim 1 , wherein the second time point is: at a first symbol of an earliest uplink transmission among a group of uplink transmissions that at least partially overlap with one another or a first symbol of a part to be cancelled of the earliest uplink transmission; or at a first symbol of an earliest uplink transmission with a high priority among a group of uplink transmissions that at least partially overlap with one another or a first symbol of the part to be cancelled of the earliest uplink transmission; or at a first symbol of an earliest physical uplink shared channel (PUSCH) with a high priority among a group of uplink transmissions that at least partially overlap with one another or a first symbol of the part to be cancelled of the earliest PUSCH; or at a first symbol of an earliest uplink transmission among a group of uplink transmissions that at least partially overlap with one another or a first symbol of the part to be cancelled of the earliest uplink transmission, the group of uplink transmissions overlapping with a time-frequency resource indicated by the transmission cancellation indication.
5 . The method of claim 1 , wherein the fourth time point is: at a first symbol of an earliest uplink transmission among a group of uplink transmissions that at least partially overlap with one another or a first symbol of a part to be cancelled of the earliest uplink transmission, wherein the group of uplink transmissions overlaps at least one uplink transmission that overlaps with a time-frequency resource indicated by the transmission cancellation indication, and wherein the group of uplink transmissions does not overlap with the time-frequency resource indicated by the transmission cancellation indication; or at a first symbol of an earliest uplink transmission among a group of uplink transmissions that at least partially overlap with one another or a first symbol of the part to be cancelled of the earliest uplink transmission, and wherein the earliest uplink transmission is to be saved or restored.
6 . The method of claim 1 , wherein the timing analysis further includes: determining, by the first wireless device, a reference time point based on a first symbol of each of uplink transmissions scheduled by the one or more control information messages or a first symbol of a part to be cancelled of each of the uplink transmissions; and comparing, by the first wireless device, the reference time point with an arrival timing of at least one control information message.
7 . The method of claim 6 , further comprising: determining, by the first wireless device, whether to cancel a transmission overlapping with a time-frequency resource indicated by the transmission cancellation indication at least according to a result of the comparing.
8 . The method of claim 6 , wherein the reference time point is derived from a second time point and a fourth time point determined based on the uplink transmissions scheduled by the one or more control information messages or corresponding to the configured grant.
9 . The method of claim 8 , wherein the second time point is: at a first symbol of an earliest uplink transmission among a group of uplink transmissions that at least partially overlap with one another or a first symbol of the part to be cancelled of the earliest uplink transmission; or at a first symbol of an earliest uplink transmission with a high priority among a group of uplink transmissions that at least partially overlap with one another or a first symbol of the part to be cancelled of the earliest uplink transmission; or at a first symbol of an earliest physical uplink shared channel (PUSCH) with a high priority among a group of uplink transmissions that at least partially overlap with one another or a first symbol of the part to be cancelled of the earliest PUSCH; or at a first symbol of an earliest uplink transmission among a group of uplink transmissions that at least partially overlap with one another or a first symbol of the part to be cancelled of the earliest uplink transmission, the group of uplink transmissions overlapping with a time-frequency resource indicated by the transmission cancellation indication.
10 . The method of claim 8 , wherein the fourth time point is: at a first symbol of an earliest uplink transmission among a group of uplink transmissions that at least partially overlap with one another or a first symbol of the part to be cancelled of the earliest uplink transmission, wherein the group of uplink transmissions overlaps an uplink transmission that overlaps with a time-frequency resource indicated by the transmission cancellation indication, and wherein the group of uplink transmissions does not overlap with the time-frequency resource indicated by the transmission cancellation indication; or at a first symbol of an earliest uplink transmission among a group of uplink transmissions that at least partially overlap with one another or a first symbol of the part to be cancelled of the earliest uplink transmission, and wherein the earliest uplink transmission is to be saved or restored.
11 . The method of claim 6 , further comprising performing a cancellation of scheduled transmissions based on the timing analysis or a result of the comparing.
12 . The method of claim 11 , further comprising determining, by the first wireless device, whether to resume a canceled uplink transmission based on the timing analysis or the result.
13 . The method of claim 11 , further comprising determining, by the first wireless device, whether to resume a canceled uplink transmission based on a number of symbols between a last symbol of a message carrying the uplink cancellation information and a first symbol of an earliest uplink transmission among a group of uplink transmissions scheduled by the one or more control information messages or a first symbol of the part to be cancelled of the earliest uplink transmission.
14 . The method of claim 11 , further comprising resuming, by the first wireless device, a canceled uplink transmission that overlaps, at least in part, an uplink transmission that overlaps a resource occupied by the uplink cancellation information if the canceled uplink transmission does not overlap the resource occupied by the uplink cancellation information.
15 . The method of claim 1 , further comprising determining whether to cancel all the uplink transmissions that conflict with the resource occupied by the uplink cancellation information.
16 . A wireless communication method, comprising: receiving, by a first wireless device, one or more message comprising a transmission cancellation indication indicating that a transmission previously scheduled for the first wireless device is to be cancelled; and implementing, by the first wireless device, the transmission cancellation using one of multiple cancellation modes according to a condition associated with the first wireless device, wherein the multiple cancellation modes include performing an inter-UE cancellation to first cancel an uplink transmission that at least partially overlaps a time-frequency resource occupied by uplink cancellation information carried by the one or more message, upon determination that both a first time difference between a first time point and a second time point and a second time difference between a third time point and a fourth time point satisfy a predetermined condition; and performing cancellation of uplink transmissions in sequence of an arrival of the messages, upon determination that at least one of the first and second time differences fails to satisfy the predetermined condition, wherein the first time point is determined based on one or more control information messages, the second time point is determined based on the uplink transmissions scheduled by the control information or corresponding to a configured grant, wherein the third time point is determined based on the one or more control information messages, and the fourth time point is determined based on the uplink transmissions scheduled by the control information or corresponding to the configured grant, and the fourth time point is different from the second time point.
17 . The method of claim 16 , further comprising implementing multiple recovery modes to resume a canceled transmission according to the condition associated with the first wireless device.

Description

CROSS REFERENCE TO RELATED APPLICATIONS This patent document is a continuation of and claims benefit of priority to International Patent Application No. PCT/CN2020/083928, filed on Apr. 9, 2020. The entire content of the before-mentioned patent application is incorporated by reference as part of the disclosure of this application. TECHNICAL FIELD This disclosure is directed generally to digital wireless communications. BACKGROUND Mobile telecommunication technologies are moving the world toward an increasingly connected and networked society. In comparison with the existing wireless networks, next generation systems and wireless communication techniques will need to support a much wider range of use-case characteristics and provide a more complex and sophisticated range of access requirements and flexibilities. Long-Term Evolution (LTE) is a standard for wireless communication for mobile devices and data terminals developed by 3rd Generation Partnership Project (3GPP). LTE Advanced (LTE-A) is a wireless communication standard that enhances the LTE standard. The 5th generation of wireless system, known as 5G, advances the LTE and LTE-A wireless standards and is committed to supporting higher data-rates, large number of connections, ultra-low latency, high reliability and other emerging business needs. SUMMARY Apparatuses, methods, systems, and computer readable media are disclosed. In one aspect, a wireless communication method is disclosed. The method includes receiving, by a first wireless device, one or more control information messages, at least one of the control information messages including a transmission cancellation indication indicating that a transmission previously scheduled for the first wireless device is to be cancelled, and performing, by the first wireless device, a timing analysis on the at least one of the control information messages including the transmission cancellation indication. In another aspect, the timing analysis includes determining, by the first wireless device, timeline information based on the one or more control information messages and uplink transmissions scheduled by the control information or corresponding to a configured grant, and determining, by the first wireless device, whether the timeline information satisfies a predetermined condition. In another aspect, the timing analysis includes determining, by the first wireless device, a reference time point based on a first symbol of each of uplink transmissions scheduled by the one or more control information messages, and comparing, by the first wireless device, the reference time point with an arrival timing of the at least one control information message including a transmission cancellation indication indicating that a transmission previously scheduled for the first wireless device is to be cancelled. In another aspect, a wireless communication method includes receiving, by a first wireless device, one or more message comprising a transmission cancellation indication indicating that a transmission previously scheduled for the first wireless device is to be cancelled, and implementing, by the first wireless device, the transmission cancellation using one of multiple cancellation modes according to a condition associated with the first wireless device. 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 DRAWING FIG. 1 depicts an example of time-frequency domain resources in which uplink transmissions are scheduled according to control information messages including downlink control information (DCI), based on some example embodiments of the disclosed technology. FIG. 2 depicts another example of time-frequency domain resources in which uplink transmissions are scheduled according to control information messages including downlink control information (DCI), based on some example embodiments of the disclosed technology. FIG. 3 depicts another example of time-frequency domain resources in which uplink transmissions are scheduled according to control information messages including downlink control information (DCI), based on some example embodiments of the disclosed technology. FIG. 4 depicts multiple time slot-based PUCCH/PUSCH resources based on some example embodiments of the disclosed technology. FIG. 5 depicts an example of timing analysis on control an information message including a transmission cancellation indication, based on some example embodiments of the disclosed technology. FIG. 6 depicts another example of timing analysis on control an information message including a transmission cancellation indication, based on some example embodiments of the disclosed technology. FIG. 7 depicts another example of timing analysis on control an information message including a transmission cancellation indication, based on some example embodiments of the disclosed technology. FIG. 8 depicts another example of timin