Downlink Control Channel Signaling for UL Coexistence of Multiple Service Types

Patent metadata

Field	Value
Publication number	US-2021410154-A1
Application number	US-201917293450-A
Country	US
Kind code	A1
Filing date	Nov 12, 2019
Priority date	Nov 13, 2018
Publication date	Dec 30, 2021
Grant date	—

Abstract

Various embodiments herein describe uplink (UL) multiplexing of transmissions with different reliability and/or latency requirements. In particular, how one or more indications of impacted resources may be conveyed to one or more user equipments so that an ongoing or imminent UL transmission may be adjusted in order to avoid adversely impacting other UL transmission that may occur in shared resources. Other embodiments may be described and claimed.

First claim

1 . One or more non-transitory computer-readable media (CRM) having instructions, stored thereon, that when executed by one or more processors cause a user equipment (UE) to:
receive a time-frequency resource allocation for an uplink transmission in a cell; receive configuration information for a time-frequency region in the cell, wherein the time-frequency region includes a plurality of configured partitions; receive a downlink control information (DCI) message that includes an indication of precedence for one or more partitions within the second resource; determine that the time-frequency resource allocation overlaps with at least one partition of the time-frequency region for which the indication of precedence was received; and cancel, based on the determination, a remaining portion of the uplink transmission that remains after the determination.

2 . (canceled)

3 . The one or more non-transitory CRM of claim 1 , wherein the remaining portion is only part of the uplink transmission.

4 . The one or more non-transitory CRM of claim 1 , wherein the configuration information is received via radio resource control (RRC) signaling, and wherein the configuration information includes a number of the plurality of partitions in the time-frequency region.

5 . The one or more non-transitory CRM of claim 1 , wherein the plurality of partitions include a first number of partitions in a time domain and a second number of partitions in a frequency domain.

6 . The one or more non-transitory CRM of claim 1 , wherein the indication includes a bitmap, wherein individual bits of the bitmap indicate a status of whether precedence is indicated for the partition associated with the respective individual bit.

7 . The one or more non-transitory CRM of claim 6 , wherein the indication further includes a field to indicate a granularity of the partitions for the bitmap.

8 . The one or more non-transitory CRM of claim 1 , wherein the configuration information indicates a radio network temporary identifier (RNTI) associated with the indication, wherein the indication includes the RNTI.

9 . The one or more non-transitory CRM of claim 1 , wherein the indication includes multiple fields to indicate precedence for different respective carrier frequencies.

10 . One or more non-transitory computer-readable media (CRM) having instructions, stored thereon, that when executed by one or more processors cause a base station to:
encode, for transmission to a first user equipment (UE), a message to indicate a first resource allocation for an uplink transmission of the UE to the base station in a wireless cellular network; determine that a second resource allocation for a second UE overlaps with one or more time-frequency resources of the first resource allocation; and encode, for transmission to the UE, an indication of the one or more time-frequency resources to instruct the UE to cancel a remaining portion of the uplink transmission that remains after processing the indication.

11 . (canceled)

12 . The one or more non-transitory CRM of claim 10 , wherein the remaining portion is only part of the uplink transmission.

13 . (canceled)

14 . (canceled)

15 . The one or more non-transitory CRM of claim 13 , wherein the indication further includes an indication of a start position, an end position, a time duration, or a frequency range for a frequency region associated with the indication.

16 . The one or more non-transitory CRM of claim 10 , wherein the instructions when executed by one or more processors further cause the base station to:
determine a group of UEs, including the first UE and excluding the second UE, that are subject to cancellation of uplink transmissions due to overlap; and configure a radio network temporary identifier (RNTI) for the group of UEs; wherein the indication is transmitted to the group of UEs associated with the RNTI.

17 . The one or more non-transitory CRM of claim 10 , wherein the first resource allocation is for enhanced mobile broadband (eMBB) or massive machine-type communications (mMTC), and the second resource allocation is for ultra-reliable and low latency communications (URLLC).

18 . One or more non-transitory computer-readable media having instructions, stored thereon, that when executed by one or more processors cause a first user equipment (UE) to:
receive a first resource allocation for an uplink transmission in a wireless cellular network; receive, in a downlink control information (DCI) message that is provided to multiple UEs including the first UE and a second UE, an indication of one or more time-frequency resources on which a second resource allocation for the second UE overlaps with the first resource allocation; and modify the uplink transmission based on the indication, wherein the modification is different from a modification to be made by the second UE based on the indication.

19 . The one or more non-transitory CRM of claim 18 , wherein the instructions, when executed, further cause the first UE to receive configuration information to indicate the modification to be performed by the first UE based on the indication.

20 . The one or more non-transitory CRM of claim 18 , wherein, to modify the uplink transmission,
the first UE is to cancel the uplink transmission on the indicated time-frequency resources.

21 . The one or more non-transitory CRM of claim 18 , wherein the uplink transmission is a first uplink transmission, and wherein:
to modify the first uplink transmission, the first UE is to decrease a first transmit power of the first uplink transmission on the indicated time-frequency resources; and the second UE is to increase a second transmit power of a second uplink transmission of the second UE on the indicated time-frequency resources in response to the indication.

22 . The one or more non-transitory CRM of claim 18 , wherein the uplink transmission is a first uplink transmission, and wherein:
to modify the first uplink transmission, the first UE is to increase a first transmit power of the first uplink transmission on the indicated time-frequency resources; and the second UE is to decrease a second transmit power of a second uplink transmission of the second UE on the indicated time-frequency resources in response to the indication.

23 . The one or more non-transitory CRM of claim 18 , wherein the indication includes:
a bitmap, and wherein individual bits of the bitmap indicate a status of whether overlap is indicated for a respective time-frequency partition; and a field to indicate a granularity of resource indication for the bitmap.

24 . (canceled)

25 . The one or more non-transitory CRM of claim 18 , wherein:
the first resource allocation is for one of enhanced mobile broadband (eMBB), massive machine-type communications (mMTC), or ultra-reliable and low latency communications (URLLC); and the second resource allocation is for a different one of eMBB, URLLC, or mMTC.

Assignees

• Apple Inc

Inventors

• Islam Toufiqul
• Chatterjee Debdeep
• Panteleev Sergey
• Hamidi-Sepehr Fatemeh

Classifications

• H04W72/56 Primary

  based on priority criteria · CPC title

• H04W72/23 Primary

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04W72/569

  of the traffic information · CPC title

• H04W72/51

  based on terminal or device properties · CPC title

• H04L5/0053 Primary

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title