IP Library › Granted Patent US 12,231,238
Granted Patent B2
US 12,231,238 · App. 18/477,678 · Granted Feb 18, 2025

HARQ feedback for grant-free transmission

Inventors: Hyoungsuk Jeon (Centreville, VA); Esmael Hejazi Dinan (McLean, VA); Alireza Babaei (Fairfax, VA); Hua Zhou (Vienna, VA); Kyungmin Park (Vienna, VA)
Assignee: Comcast Cable Communications, LLC
H04L1/1671H04L1/1812H04L1/1854H04L1/1864H04W28/04H04W72/1268H04W72/23
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Quick Facts
Patent No.
US 12,231,238
App. No.
18/477,678
Granted
Feb 18, 2025
Kind
B2
Abstract

Systems, apparatuses, and methods are described for wireless communications. A base station may transmit wireless device-specific downlink control information comprising HARQ feedback to a wireless device. Coordinating a plurality of HARQ feedbacks may result in complicated processing at the base station and/or a delay to schedule a HARQ feedback for the wireless device. The transmission of the downlink control information may not require HARQ feedback from a wireless device. By reducing the transmission of HARQ feedback, the channel capacity utilized for error correction transmissions can be reduced, thereby enhancing resource utilization.

Claims (68)

1. A method comprising:

transmitting, by a base station to a wireless device, a control message comprising an indication of a size of downlink control information (DCI), wherein the size of the DCI is determined based on a quantity of one or more first transport blocks received from one or more wireless devices;

receiving, from the wireless device via one or more radio resources indicated by a configured uplink grant, one or more second transport blocks; and

transmitting, to the wireless device, DCI having the size, wherein the transmitted DCI comprises at least one field indicating an acknowledgement associated with the one or more second transport blocks.

2. The method of claim 1 , wherein the control message comprises one or more radio resource control messages indicating an identifier of the transmitted DCI.

3. The method of claim 2 , further comprising determining, based on an index of the wireless device, a position of the at least one field indicating the acknowledgement, wherein the one or more radio resource control messages comprises the index.

4. The method of claim 2 , wherein the one or more radio resource control messages comprises:

a periodicity of the configured uplink grant; and

an offset of a resource of the one or more radio resources, wherein the offset is with respect to a first system frame number.

5. The method of claim 1 , wherein the at least one field indicating the acknowledgement comprises a hybrid automatic repeat request (HARQ) process number associated with the one or more second transport blocks.

6. The method of claim 1 , wherein the transmitted DCI comprises a group common DCI.

7. The method of claim 1 , further comprising:

generating, based on the determined size of the DCI being insufficient to indicate an acknowledgement of a portion of the one or more second transport blocks, second DCI comprising at least one field indicating an acknowledgement associated with the portion of the one or more second transport blocks; and

transmitting, to the wireless device, the second DCI.

8. The method of claim 1 , further comprising:

based on the receiving the one or more second transport blocks, starting a timer, wherein transmitting the DCI occurs before an expiration of the timer.

9. A method comprising:

receiving, by a wireless device from a base station, a control message comprising an indication of a size of downlink control information (DCI);

transmitting, to the base station via one or more radio resources indicated by a configured uplink grant, one or more transport blocks; and

receiving, from the base station, DCI having the size indicated by the control message, wherein the received DCI comprises:

an identifier indicating the wireless device; and

a field indicating an acknowledgement associated with the one or more transport blocks.

10. The method of claim 9 , wherein the control message comprises one or more radio resource control messages indicating an identifier of the received DCI.

11. The method of claim 10 , wherein the one or more radio resource control messages comprises at least one of:

a periodicity of the configured uplink grant; or

an offset of a resource of the one or more radio resources, wherein the offset is with respect to a first system frame number.

12. The method of claim 9 , further comprising:

monitoring a control channel for the DCI having the size indicated by the control message.

13. The method of claim 9 , further comprising:

starting, based on the transmitting of the one or more transport blocks, a timer.

14. The method of claim 9 , wherein the field indicating the acknowledgement further indicates a hybrid automatic repeat request (HARQ) process number.

15. The method of claim 9 , wherein the received DCI comprises a group common DCI.

16. The method of claim 9 , wherein the size of the DCI is based on a quantity of one or more first transport blocks received by the base station.

17. A base station comprising:

one or more processors; and

memory storing instructions that, when executed by the one or more processors, configure the base station to:

transmit, to a wireless device, a control message comprising an indication of a size of downlink control information (DCI), wherein the size of the DCI is determined based on a quantity of one or more first transport blocks received from one or more wireless devices;

receive, from the wireless device via one or more radio resources indicated by a configured uplink grant, one or more second transport blocks; and

transmit, to the wireless device, DCI having the size, wherein the transmitted DCI comprises at least one field indicating an acknowledgement associated with the one or more second transport blocks.

18. The base station of claim 17 , wherein the control message comprises one or more radio resource control messages indicating an identifier of the transmitted DCI.

19. The base station of claim 18 , wherein the instructions, when executed by the one or more processors, configure the base station to determine, based on an index of the wireless device, a position of the at least one field indicating the acknowledgement, wherein the one or more radio resource control messages comprises the index.

20. The base station of claim 18 , wherein the one or more radio resource control messages comprises:

a periodicity of the configured uplink grant; and

an offset of a resource of the one or more radio resources, wherein the offset is with respect to a first system frame number.

21. The base station of claim 17 , wherein the at least one field indicating the acknowledgement comprises a hybrid automatic repeat request (HARQ) process number associated with the one or more second transport blocks.

22. The base station of claim 17 , wherein the transmitted DCI comprises a group common DCI.

23. The base station of claim 17 , wherein the instructions, when executed by the one or more processors, configure the base station to:

generate, based on the determined size of the DCI being insufficient to indicate an acknowledgement of a portion of the one or more second transport blocks, second DCI comprising at least one field indicating an acknowledgement associated with the portion of the one or more second transport blocks; and

transmit, by the base station to the wireless device, the second DCI.

24. The base station of claim 17 , wherein the instructions, when executed by the one or more processors, configure the base station to start, based on receiving the one or more second transport blocks, a timer, wherein transmitting the DCI occurs before an expiration of the timer.

25. A wireless device comprising:

one or more processors; and

memory storing instructions that, when executed by the one or more processors, configure the wireless device to:

receive, from a base station, a control message comprising an indication of a size of downlink control information (DCI);

transmit, to the base station via one or more radio resources indicated by a configured uplink grant, one or more transport blocks; and

receive, from the base station, DCI having the size indicated by the control message, wherein the received DCI comprises:

an identifier indicating the wireless device; and

a field indicating an acknowledgement associated with the one or more transport blocks.

26. The wireless device of claim 25 , wherein the control message comprises one or more radio resource control messages indicating an identifier of the received DCI.

27. The wireless device of claim 26 , wherein the one or more radio resource control messages comprises at least one of:

a periodicity of the configured uplink grant; or

an offset of a resource of the one or more radio resources, wherein the offset is with respect to a first system frame number.

28. The wireless device of claim 25 , wherein the instructions, when executed by the one or more processors, configure the wireless device to:

monitor a control channel for the DCI having the size indicated by the control message.

29. The wireless device of claim 25 , wherein the instructions, when executed by the one or more processors, configure the wireless device to start, based on transmitting of the one or more transport blocks, a timer.

30. The wireless device of claim 25 , wherein the field indicating the acknowledgement further indicates a hybrid automatic repeat request (HARQ) process number.

31. The wireless device of claim 25 , wherein the received DCI comprises a group common DCI.

32. The wireless device of claim 25 , wherein the size of the DCI is based on a quantity of one or more first transport blocks received by the base station.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 16, 2024
From: JEON, HYOUNGSUK; DINAN, ESMAEL HEJAZI; BABAEI, ALIREZA; ZHOU, HUA; PARK, KYUNGMIN
To: COMCAST CABLE COMMUNICATIONS, LLC
Reel/Frame 068598/0940 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 16, 2024
From: JEON, HYOUNGSUK; DINAN, ESMAEL HEJAZI; BABAEI, ALIREZA; ZHOU, HUA; PARK, KYUNGMIN
To: COMCAST CABLE COMMUNICATIONS, LLC
Reel/Frame 068599/0013 →
Continuity (3)
Continuation 16146415 · Sep 28, 2018
Provisional Application 62564692 · Sep 28, 2017
Related Publication 20240097826A1 · Mar 21, 2024
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R1-1717400 3GPP TSG RAN WG1 Meeting #90bis, Prague, Czech Republic, Oct. 9-13, 2017, Source: Intel Corporation, Title: Remaining details for bandwidth parts. [cited by applicant]
R1-1717504 3GPP TSG RAN WG1 Meeting #90bis, Prague, Czech Republic, Oct. 9-13, 2017, Source: vivo, Title: Remaining details for bandwidth part operation. [cited by applicant]
R1-1717675 3GPP TSG RAN WG1 Meeting #90bis, Prague, Czech Republic, Oct. 9-13, 2017, Source: Samsung, Title: On Bandwidth Part Operation. [cited by applicant]
R1-1717839 3GPP TSG RAN WG1 Meeting #90bis, Prague, Czech Republic, Oct. 9-13, 2017, Source: CATT, Title: Remaining aspects of BWP operation. [cited by applicant]
R1-1717972 3GPP TSG RAN WG1 Meeting #90bis, Prague, Czech Republic, Oct. 9-13, 2017, Source: LG Electronics, Title: Remaining issues on bandwidth parts. [cited by applicant]
R1-1718050 3GPP TSG RAN WG1 Meeting #90bis, Prague, Czech Republic, Oct. 9-13, 2017, Source: OPPO, Title: Remaining issues on bandwidth part configuration and activation. [cited by applicant]
R1-1718223 3GPP TSG RAN WG1 Meeting #90bis, Prague, Czech Republic, Oct. 9-13, 2017, Source: NTT Docomo, Inc., Title: Remaing issues on bandwidth parts for NR. [cited by applicant]
R1-1718327 3GPP TSG RAN WG1 Meeting #90bis, Prague, Czech Republic, Oct. 9-13, 2017, Source: MediaTek Inc., Title: Remaining Details on Bandwidth Part Operation in NR. [cited by applicant]
R1-1718365 3GPP TSG RAN WG1 Meeting #90bis, Prague, Czech Republic, Oct. 9-13, 2017, Source: InterDigital, Inc., Title: Remaining details of BWP. [cited by applicant]
R1-1718404 3GPP TSG RAN WG1 Meeting #90bis, Prague, Czech Republic, Oct. 9-13, 2017, Source: AT&T, Title: Remaining details for bandwidth parts. [cited by applicant]
R1-1718523 3GPP TSG RAN WG1 Meeting #90bis, Prague, Czech Republic, Oct. 9-13, 2017, Source: Ericsson, Title: On bandwidth parties. [cited by applicant]
R1-1718580 3GPP TSG RAN WG1 Meeting #90bis, Prague, Czech Republic, Oct. 9-13, 2017, Source: Qualcomm Incorporated, Title: Open Issues on BWP. [cited by applicant]
R1-1718607 3GPP TSG RAN WG1 Meeting #90bis, Prague, Czech Republic, Oct. 9-13, 2017, Source: Nokia, Nokia Shanghai Bell, Title: On remaining aspects of BWPs. [cited by applicant]
R1-171xxxx 3GPP TSG-RAN WG1 NR Ad Hoc, Qingdao, China, Jun. 27-30, 2017, Source: LG Electronics, Title: [draft] Summary of [89-22] Email discussion about UL data transmission without UL grant. [cited by applicant]
R1-17xxxxx 3GPP TSG RAN WG1 Meeting #90, Prague, Czech Republic, Aug. 21-25, 2017, Source: NTT Docomo, Inc., Title: Offline discussions on some topics for AI 6.1.3.1. [cited by applicant]
R2-1703453 3GPP TSG-RAN WG2 #97bis, Spokane, USA, Apr. 3-7, 2017, Source: Samsung, Title: HARQ for Numerology Multiplexing. [cited by applicant]
R2-1704479 3GPP TSG-RAN WG1 #98, Hangzhou, China, May 15-19, 2017, Source: Samsung, Title: The number of TBs per UL HARQ process. [cited by applicant]
R2-1704505 3GPP TSG-RAN WG1 #98, Hangzhou, China, May 15-19, 2017, Source: Samsung, Title: HARQ for numerology multiplexing. [cited by applicant]
R2-1704684 3GPP TSG-RAN WG1 #98, Hangzhou, China, May 15-19, 2017, Source: Ericsson, Title: Enhanced HARQ feedback mode in SPS. [cited by applicant]
R2-1706417 3GPP TSG-RAN WG2 NR Ad Hoc, Qingdao, China, Jun. 27-29, 2017, Source: CATT, Title: Grant-free transmission and SPS. [cited by applicant]
R2-1706448 3GPP TSG-RAN WG2 NR Ad Hoc, Qingdao, China, Jun. 27-29, 2017, Source: Spreadtrum Communications, Title: Discussion on UL grant-free transmission. [cited by applicant]
R2-1706589 3GPP TSG-RAN WG2 NR Ad Hoc, Qingdao, China, Jun. 27-29, 2017, Source: Nokia, Alcatel-Lucent Shanghai Bell, Title: Unified SPS and Grant-free operation. [cited by applicant]
R2-1706645 3GPP TSG-RAN WG2 NR Ad Hoc, Qingdao, China, Jun. 27-29, 2017, Source: ZTE, Title: Consideration on the multiple SPS and grant free. [cited by applicant]
R2-1706687 3GPP TSG-RAN WG2 NR Ad Hoc, Qingdao, China, Jun. 27-29, 2017, Source: InterDigital, Title: SPS and Grant-free operation for NR. [cited by applicant]
R2-1707098 3GPP TSG-RAN WG2 NR Ad Hoc, Qingdao, China, Jun. 27-29, 2017, Source: Samsung, Title: Uplink SPS and Grant-free Transmission Aspects. [cited by applicant]
R2-1707174 3GPP TSG-RAN WG2 NR Ad Hoc, Qingdao, China, Jun. 27-29, 2017, Source: Ericsson, Title: Grant Free and Semi-Persistent Scheduling in NR. [cited by applicant]
R2-1707247 3GPP TSG-RAN WG2 NR Ad Hoc, Qingdao, China, Jun. 27-29, 2017, Source: Huawei, HiSilicon, Title: Modelling of Grant free and SPS. [cited by applicant]
R2-1707268 3GPP TSG-RAN WG2 NR Ad Hoc, Qingdao, China, Jun. 27-29, 2017, Source: MediaTek Inc., Title: Comparison of SPS and grant-free schemes. [cited by applicant]
R2-1707500 3GPP TSG-RAN WG2 NR Ad Hoc, Quingdao, China, Jun. 27-29, 2017, Source: Vice-Chairwoman (InterDigital), Title: Report from NR User Plane Break-Out Session. [cited by applicant]
R2-1708732 3GPP TSG RAN WG2 #99, Berlin, Germany, Aug. 21-25, 2017, Source: InterDigital, Title: SPS and grant free operation. [cited by applicant]
R2-1708956 3GPP TSG RAN WG2 #99, Berlin, Germany, Aug. 21-25, 2017, Source: Huawei, HiSilicon, Title: Considerations on SPS and TTI-bundling in EN-DC. [cited by applicant]
R2-1709125 3GPP TSG RAN WG2 #99, Berlin, Germany, Aug. 21-25, 2017, Source: Qualcomm, Title: On reliable transmission of URLLC data. [cited by applicant]
R2-1709264 3GPP TSG RAN WG2 #99, Berlin, Germany, Aug. 21-25, 2017, Source: Huawei, HiSilicon, Title: Discussion on type 1 grant-free for connected mode UE. [cited by applicant]
R2-1710134 3GPP TSG RAN WG2 Meeting #99bis, Prague, Czech Republic, Oct. 9-13, 2017, Source: OPPO, Title: SPS operations for BWP switching. [cited by applicant]
R2-1710662 3GPP TSG RAN WG2 Meeting #99bis, Prague, Czech Republic, Oct. 9-13, 2017, Source: InterDigital, Inc., Title: SPS and grant free operation. [cited by applicant]
R2-1710958 3GPP TSG RAN WG2 Meeting #99bis, Prague, Czech Republic, Oct. 9-13, 2017, Source: vivo, Title: Duplication deactivation due to Scell or BWP deactivation. [cited by applicant]
R2-1711441 3GPP TSG RAN WG2 Meeting #99bis, Prague, Czech Republic, Oct. 9-13, 2017, Source: Huawei, HiSilicon, Title: MAC impact of bandwidth part activation/deactivation. [cited by applicant]
R2-1711613 3GPP TSG RAN WG2 Meeting #99bis, Prague, Czech Republic, Oct. 9-13, 2017, Source: LG Electronics, Title: PHR for wider bandwidth operation. [cited by applicant]
R2-1711643 3GPP TSG RAN WG2 Meeting #99bis, Prague, Czech Republic, Oct. 9-13, 2017, Source: Intel Corporation, Title: Activation of SCell containing BWPs. [cited by applicant]
R2-1711856 3GPP TSG-RAN WG2 #99bis, Prague, Czech Republic, Oct. 9-13, 2017, Source: RAN2, Title: LS to RAN1 on SPS and Grant-free. [cited by applicant]
R2-1711904 3GPP TSG RAN WG2 Meeting #99bis, Prague, Czech Republic, Oct. 9-13, 2017, Source: Qualcomm Incorporated, Title: UE Power Saving during Active State. [cited by applicant]
R2-1711993 3GPP TSG-RAN WG2 #99bis, Prague, Czech Republic, Oct. 9-13, 2017, Source: RAN2, Title: LS to RAN1 on SPS and Grant-free. [cited by applicant]
R1-1707166 3GPP TSG-RAN WG1 #89, Hangzhou, China, May 15-19, 2017, Source: ZTE, Title: HARQ for URLLC UL Grant-free transmission. [cited by applicant]
Ericsson, “Summary of e-mail discussion on DCI content”, Sep. 18-21, 2017, R1-1716581 (Year: 2017). [cited by applicant]
Cited By (2)
US 12,574,974 US 12,696,183