Architecture for signaling response coordination

Patent metadata

Field	Value
Publication number	US-12477550-B2
Application number	US-202217854278-A
Country	US
Kind code	B2
Filing date	Jun 30, 2022
Priority date	Apr 30, 2020
Publication date	Nov 18, 2025
Grant date	Nov 18, 2025

Abstract

User equipment (UE) may communicate with a basestation (e.g., a gNodeB) via multiple transmit-receive points. The basestation may send multiple redundant or partially redundant DCIs (downlink channel information). The redundant DCIs may trigger redundant signaling responses. The UE may access predetermined content within the DCI to determine coordination of responses such that signaling response redundancy is avoided.

First claim

What is claimed is:

1 . A method comprising:
receiving, in a specific timeunit, specific downlink channel information (DCI) to schedule specific signaling; receiving a particular DCI; determining that the specific DCI and the particular DCI meet a similarity condition; executing the specific signaling responsive to the specific DCI, wherein:
a specific time offset is determined based on predetermined content of the specific DCI or independently of the predetermined content; and
the specific signaling is scheduled in accord with the specific time offset; and
omitting a particular signaling response to the particular DCI, wherein omission of the particular signaling response is done in response to the specific DCI and the particular DCI meeting the similarity condition.

2 . The method of claim 1 , wherein the predetermined content comprises at least one of:
a first parameter to configure search space of the specific DCI, wherein the first parameter is defined at a layer above a physical layer; a second parameter to configure a CORESET of the specific DCI, wherein the second parameter is defined at a layer above the physical layer; a third parameter to configure a CORESET pool index of the specific DCI, wherein the third parameter is defined at a layer above the physical layer; or any combination of the above.

3 . The method of claim 1 , wherein the predetermined content comprises:
beam information, wherein:
the beam information includes a transmission configuration index (TCI), a spatial relation used for the specific DCI, or both;
a time domain resource used by the specific DCI, wherein:
the time domain resource includes a physical downlink control channel (PDCCH) occasion index, a slot index, a symbol index used by the PDCCH, or any combination thereof, wherein
the PDCCH occasion index, the slot index, the symbol index used by the PDCCH, or any combination thereof are configured for a search space; and
a CORESET pool index configured for the CORESET of the specific DCI; or any combination of the above.

4 . The method of claim 1 , wherein a timeunit of specific signaling execution is determined based on the specific timeunit, the specific time offset, and a signal time offset defined for signaling content of the specific signaling, the timeunit of specific signaling execution comprising: an effective timeunit of the specific signaling, a transmission timeunit of the specific signaling, or both.

5 . The method of claim 1 , where a signaling content of the specific signaling comprises:
a sounding reference signal (SRS) scheduled by the specific DCI; a channel state information reference signal (CSI-RS) scheduled by the specific DCI; a physical downlink shared channel (PDSCH) scheduled by the specific DCI; a physical uplink shared channel (PUSCH) scheduled by the specific DCI; CSI reporting scheduled by the specific DCI; a signaling indication scheduled by a group common DCI; or any combination of the above.

6 . The method of claim 1 ,
the specific DCI arrives before the particular DCI, in which case the specific DCI arrives in a specific timeunit preceding a particular timeunit in which the particular DCI arrives; or the particular DCI arrives before the specific DCI, in which case the particular DCI arrives in the particular timeunit preceding the specific timeunit in which the specific DCI arrives.

7 . The method of claim 1 , wherein:
the similarity condition includes determining that the predetermined content within the specific DCI and the particular DCI are identical; the predetermined content includes:
a hybrid automatic repeat request (HARD) processing number;
a new data indicator (NDI);
a time domain resource allocated for the specific signaling;
a frequency domain resource allocated for the specific signaling;
a carrier indicator;
a DCI parameter other than a downlink assignment index (DAI); or
any combination of the above; and
the specific DCI and the particular DCI are associated with different CORESET pool indices.

8 . The method of claim 1 , further including:
sending feedback acknowledgement/non-acknowledgement (ACK/NACK) bits for both the specific DCI and the particular DCI.

9 . A method including:
sending specific downlink control information (DCI) to user equipment (UE) to be received in a specific timeunit, the specific DCI configured to schedule specific signaling; sending a particular DCI to the UE, wherein the particular DCI and the specific DCI meet a similarity condition; and listening for the specific signaling responsive to the DCI, wherein:
a specific time offset is indicated based on predetermined content of the specific DCI or independently of the predetermined content,
the specific signaling is scheduled in accord with the specific time offset, and
the specific DCI and the particular DCI are selected to meet the similarity condition to cause omission of a signaling response to the particular DCI.

10 . The method of claim 9 , wherein the predetermined content includes at least one of:
a first parameter to configure search space of the specific DCI, wherein the first parameter is defined at a layer above a physical layer; a second parameter to configure a CORESET of the specific DCI, wherein the second parameter is defined at a layer above the physical layer; a third parameter to configure a CORESET pool index of the specific DCI, wherein the third parameter is defined at a layer above the physical layer; or any combination of the above.

11 . The method of claim 9 , wherein the predetermined content includes:
beam information, wherein:
the beam information includes a transmission configuration indicator (TCI), a spatial relation used for the specific DCI, or both;
a time domain resource used by the specific DCI, wherein:
the time domain resource includes a physical downlink control channel (PDCCH) occasion index, a slot index, a symbol index used by the PDCCH, or any combination thereof, wherein
the PDCCH occasion index, the slot index, the symbol index used by the PDCCH, or any combination thereof are configured for a search space; and
a CORESET pool index configured for the CORESET of the specific DCI;

or any combination of the above.

12 . The method of claim 9 , wherein a timeunit of specific signaling execution is determined based on the specific timeunit, the specific time offset, and a signal time offset defined for signaling content of the specific signaling, the timeunit of specific signaling execution including: an effective timeunit of the specific signaling, a transmission timeunit of the specific signaling, or both.

13 . The method of claim 9 , where a signaling content of the specific signaling includes:
a sounding reference signal (SRS) scheduled by the specific DCI; a channel state information reference signal (CSI-RS) scheduled by the specific DCI; a physical downlink shared channel (PDSCH) scheduled by the specific DCI; a physical uplink shared channel (PUSCH) scheduled by the specific DCI; CSI reporting scheduled by the specific DCI; a signaling indication scheduled by a group common DCI; or any combination of the above.

14 . The method of claim 9 , wherein:
the specific DCI arrives before the particular DCI, in which case the specific DCI arrives in a specific timeunit preceding a particular timeunit in which the particular DCI arrives; or the particular DCI arrives before the specific DCI, in which case the particular DCI arrives in the particular timeunit preceding the specific timeunit in which the specific DCI arrives.

15 . The m

Assignees

• Zte Corp

Inventors

• Jiang Chuangxin
• Lu Zhaohua
• Gao Bo
• Zhang Shujuan
• Wu Hao
• Yao Ke
• Pan Yu
• Yan Wenjun

Classifications

• H04L5/0053 Primary

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

• H04L1/1864

  ARQ related signaling (H04L1/1607 takes precedence) · CPC title

• H04L5/005

  of common pilots, i.e. pilots destined for multiple users or terminals · CPC title

• H04W72/232

  the control data signalling from the physical layer, e.g. DCI signalling · CPC title

• H04W72/231

  the control data signalling from the layers above the physical layer, e.g. RRC or MAC-CE signalling · CPC title